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Method for semi-dry pressing of gypsum Swollen perlite is used, which is first saturated with water, water that is not retained by a swollen perlite granule is filtered, the water-saturated perlite is mixed with gypsum, the produced mix is supplied into a die mould for further pressing, and pressed at 10 MPa at least. |
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Vibration mixer comprises a mixing chamber, a rotor with blades, a vibrator rigidly fixed in the centre of the mixing chamber. The vibrator's casing is made as a metal shell being a corrugated thin-walled body of rotation which in the vertical plane section provides for a complex truncated geometric figure by corrugation peaks points, the figure is formed by mean intersection of four circles with the centres being the vertices of a square and with the radiuses being equal to the diagonal of the said square. A disk is rigidly fixed inside the shell in the centre in the horizontal plane, it is fitted with a cylindrical protrusion able of being inserted and fastened along the inner diameter of a spring installed so that it can be freely compressed and released in a cup. A connecting rod driven by the upper crank mechanism is rigidly attached to the centre of the cup's upper inner part, and a pusher is attached to the centre of the cup's upper outer part, the pusher is rigidly coupled by the other end with the inner upper part of the metal corrugated shell. The disk provides for the possibility of generating vibrations from the central part of the vibrator casing with the help of four pushers which by their upper part are symmetrically attached to the lower part of the disk and by the lower part are coupled in a movable pivot unit of the connecting rod of the lower crank mechanism. |
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Vibration mixer comprises a mixing chamber, a rotor with blades. In the top and bottom parts of the chamber, two vibrators are set in the centre and rigidly fixed: the lower and upper vibrators are made in casings and generate vibrations by lower and upper crank mechanisms respectively. The vibrators' casings are made as identical metal shells being corrugated thin-walled bodies of rotation which in the vertical plane section provide for complex truncated geometric figures by corrugation peaks points, the figures are formed by mean intersection of four circles with the centres being the vertices of a square and with the radiuses being equal to the diagonal of the said square. Disks with guide posts are rigidly fixed inside each shell and are set in the centre in the horizontal plane. The disks of the lower and upper vibrators are provided with cylindrical protrusions able of being inserted and fastened along the inner diameter of the springs installed so that they can be freely compressed and released in cups, connecting rods are rigidly attached to the centres of the cups' inner parts, and pushers are attached to the centre of the cups' outer parts, the pushers are rigidly coupled by the other end with the inner parts forming the smallest corrugations out of the metal corrugated shells' corrugations. Four protrusions are symmetrically set on the outer cylindrical parts of the cups. A spring vibration generator made as a spring set is installed in the centre between the casings of the lower and the upper vibrators, the spring set consists of at least two springs of different diameter which are fixed along the diameters of recesses formed on the outer surface of the metal corrugated shells by the set of the smallest corrugations out of the corrugations of the lower and upper vibrators. |
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Vibration mixer comprises a mixing chamber, a rotor with blades. In the top and bottom parts of the mixing chamber, two vibrators are set in the centre and rigidly fixed: the lower and upper vibrators are made in casings and generate vibrations by lower, central and upper crank mechanisms. The vibrators' casings are made as metal shells being corrugated thin-walled bodies of rotation which in the vertical plane section provide for complex truncated geometric figures by corrugation peaks points, the figures are formed by mean intersection of four circles with the centres being the vertices of a square and with the radiuses being equal to the diagonal of the said square. Inside the lower vibrator shell a disk is set in the centre in the horizontal plane and is rigidly fixed, the disk is fitted by a cylindrical protrusion able of being inserted and fastened along the inner diameter of a spring installed so that it can be freely compressed and released in a cup, a connecting rod driven by the central crank mechanism is rigidly attached to the centre of the cup's upper inner part, and a pusher is attached to the centre of the cup's upper outer part, the pusher is rigidly coupled by its other end with the inner upper part of the lower vibrator casing shell. The lower vibrator disk provides for the possibility of generating vibrations of the central part of the lower vibrator casing with the help of four pushers which by their upper part are symmetrically attached to the lower part of the disk and by the lower part are coupled in a movable pivot unit of the connecting rod of the lower crank mechanism. Inside the upper vibrator shell a disk with a guide post is set in the centre in the horizontal plane and is rigidly fixed, the disk is fitted by a cylindrical protrusion able of being inserted and fastened along the inner diameter of a spring installed so that it can be freely compressed and released in a cup, a connecting rod is rigidly attached to the centre of the cup's inner part, and a pusher is attached to the centre of the cup's outer part, the pusher is rigidly coupled by its other end with the inner upper part of the upper vibrator shell forming the smallest corrugation. Four protrusions are symmetrically set on the outer cylindrical part of the cup. |
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Vibration mixer comprises a mixing chamber, a rotor with blades. In the top and bottom parts of the mixing chamber, two vibrators are set in the centre and rigidly fixed: the lower and upper vibrators are made in casings and generate vibrations by lower and upper crank mechanisms respectively. The vibrators' casings are made as identical metal shells being corrugated thin-walled bodies of rotation which in the vertical plane section provide for complex truncated geometric figures by corrugation peaks points, the figures are formed by mean intersection of four circles with the centres being the vertices of a square and with the radiuses being equal to the diagonal of the said square. Disks with guide posts are rigidly fixed inside each shell and are set in the centre in the horizontal plane. The disks of the lower and upper vibrators are provided with cylindrical protrusions able of being inserted and fixed along the inner diameter of the springs installed in cups, connecting rods are rigidly attached to the centres of the cups' inner parts, and pushers are attached to the centre of the cups' outer parts, the pushers are rigidly coupled by the other end with the inner parts of the metal corrugated shells forming the smallest corrugations. Four protrusions are symmetrically set on the outer cylindrical parts of the cups. |
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Vibration mixer comprises a mixing chamber, a rotor with blades, a vibrator rigidly fixed in the centre of the mixing chamber, with the drive for vibration generation from a crank mechanism. The vibrator's casing is made as a metal corrugated shell being a corrugated thin-walled body of rotation which in the vertical plane section provides for a complex truncated geometric figure by corrugation peaks points, the figure is formed by mean intersection of four circles with the centres being the vertices of a square and with the radiuses being equal to the diagonal of the said square. Inside the shell a disk with a guide post is set in the centre in the horizontal plane and is rigidly fixed, the disk is fitted by a cylindrical protrusion able of being inserted and fastened along the inner diameter of a spring installed so that it can be freely compressed and released in a cup, a connecting rod is rigidly attached to the centre of the cup's upper inner part, and a pusher is attached to the centre of the cup's upper outer part, the pusher is rigidly coupled by its other end with the inner upper part of the metal corrugated shell. Four protrusions are symmetrically set on the outer cylindrical part of the cup. |
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Vibration mixer comprises a mixing chamber, a rotor with blades. In the top and bottom parts of the mixing chamber, two vibrators are set in the centre and rigidly fixed: the lower and upper vibrators are made in casings and generate vibrations by lower and upper crank mechanisms respectively. The vibrators' casings are made as identical metal shells being corrugated thin-walled bodies of rotation which in the vertical plane section provide for complex truncated geometric figures by corrugation peaks points, the figures are formed by mean intersection of four circles with the centres being the vertices of a square and with the radiuses being equal to the diagonal of the said square. Disks with guide posts are rigidly fixed inside each shell and are set in the centre in the horizontal plane. The disks of the lower and upper vibrators are provided with cylindrical protrusions able of being inserted and fixed along the inner diameter of the springs installed so that they can be freely compressed and released in cups, connecting rods are rigidly attached to the centres of the cups' inner parts, and pushers are attached to the centre of the cups' outer parts, the pushers are rigidly coupled by the other end with the inner parts forming the smallest corrugations out of the metal corrugated shells' corrugations. Four protrusions are symmetrically set on the outer cylindrical parts of the cups. A spring is installed between the casings of the lower and upper vibrators along the diameters of recesses formed by the smallest corrugations out of the corrugations of the metal corrugated shells at the lower and upper vibrator casings. |
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Device for manufacturing reinforced concrete sleepers with studs Device for manufacturing the reinforced concrete sleepers with studs contains the form for laying concrete mixture, elements for installation and fixation of studs. Elements for mounting and fixing the studs are designed as a rod made of thermoplastic elastomer (TPE), at the front edge of lower part of the rod there is embedded metal screw by means of which the rod is connected with the form with the possibility of disassembly, the lower part of the rod is designed with thread the pitch of which coincides with the pitch of inner thread of stud; the front edge of lower part of the rod is designed as a washer. |
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Method for production of ceramics and complex for implementing this method Method for producing ceramics includes moulding of products by the method of semi-dry pressing, their endurance at a workshop temperature, drying by hot heat-carrying medium and burning. In this case the moulded products are placed in cassettes of a lattice structure with gaps relative to each other, endurance and drying of products in the cassettes is performed in series in one drying cabinet of a shaft type. After drying the products in the cassettes are loaded into the open shaft for their normalisation before burning under conditions of the workshop temperature and humidity. |
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Method for producing briquettes for drainage system Method for producing briquettes includes preparation of initial materials, mixing, drying and their compacting. In this case, one-dimension gravel of fraction 10-15 mm, which is previously cleaned and dried is taken as the initial materials, and an epoxy compound - as a binder, prepared from the epoxy resin and a hardener in a ratio of 90-94 to 10-6 respectively. Moreover, the initial materials are taken in the following ratio of the components: 93.5-94.5 of pts. wt. of gravel, 5.0-5.85 of pts. wt. of epoxy resin, 0.5-0.65 of pts. wt. of hardener. Then they are mixed, and the finished paste is moulded in moulds and then tamped; the finished briquettes are kept and freed from moulds. |
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Device and method for forming of mineral cotton sections of pipe insulation Invention relates to making of pipe insulation of mineral cotton. Proposed device comprises pipe insulation section solidification part including one or several moulds (31, 32), cylindrical on the side of inner surface. Note here that said solidification part comprises core (51, 52), each being fitted inside the every mould or designed to be fitted therein and withdrawn therefrom. Note here that first heaters are arranged on every mould (31, 32), at least over its inner surface. Second heaters heat pipe insulation sections placed in said moulds by microwave radiation. Note here that said second heaters are composed of generators (61, 62) to transmit microwave power to every mould via conducting modules (11, 12) and adapter elements (21, 22). Note here that said cores are made from material heating under effects of microwave radiation. |
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Plunger pair and metering pump comprises at least one external part of crystal based on aluminium oxide alpha-modification and at least one internal part of crystal based on aluminium oxide alpha-modification, preferably, leucosapphire with working surface roughness Ra2÷5Å. Said surface smoothness is brought about by processing the cylindrical surfaces of part of crystal based on aluminium oxide alpha-modification. This method comprises drilling the preliminary blanks of part of crystal based on aluminium oxide alpha-modification with the help of diamond tool. Three-stage mechanical processing is performed by diamond tool with lubricant-coolants and sequential decreased in abrasive grain size to 125/100 and/or 100/80 mcm. Internal strain is removed from blanks by annealing at muffle furnace. Surface is processed by semisoft or soft grinding wheel or by lap with diamond 5/3 mcm or 1/0 mcm grain on clock oil. Tribochemical finishing of the surface is performed by colloidal SiO2-based composition. |
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Device for forming products made of discrete powdered materials Device for forming products made of discrete powdered materials comprises a frame, a drive, a pumped slab, mounted on a connecting rod of an articulated four-link chain, mounted on the frame, a facility for feeding material into the mould under the work surface of the pumped slab and a stabilising and calibrating skid adjacent to the slab with a gap. In this case, the device is provided with at least one compression spring, pivotally fixed with one end to the connecting rod and with other end to the frame over the fixing point to the connecting rod. |
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Invention relates to production of high-strength and high-early-strength alite Portland cement. Stock with high content of CaCO3, 92-98% and quartz sand with silica content of 92-98 is fed. Note here that every said component gets to its processing line. Said production line comprises limestone or chalk screen to separate to 600 mm lumps and 25 mm lumps, hammer two-rotor crusher to grind the lumps to 25 mm fraction with grinding factor of 15-20. This comprises tank with 25 mm fraction of CaCO3 to be subjected to preliminary drying. Similarly, in the case of quartz sand, vibrating screen for separation of impurities are used as well as sand tank. Every line for CaCO3 and sand is equipped with two drier drums, two ball mills to grind to 0.01 mm fraction with drying to 0.5% moisture content, two mills to grind to particle size of 1 mcm and two service bins. Limestone or chalk and quartz sand are fed from the bins via batchers for annealing separately in annealing ducts and mixed in zigzag channels. Swirling gas flow of calcium oxide mixes said calcium oxide with annealed sand falling from above at smaller speed onto has flow with calcium oxide to produce required calcium oxide-to-silica ratio of 3:1 required for alite formation. Produced mix at 1450-1480°C gets into hot forming press. In every pressing cycle of 20 s 30 mm thick 500 mm diameter plate of clinker is produced. Downstream of refrigerator chamber clinker plate at 50°C is fed into hammer crusher and, then to grinding mill to be ground to 0.01 mm fraction and jet grinder for grinding to 0-30 mcm fraction, Portland cement with content of alite of 70-90% is thus produced. |
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Injection mould for ceramic articles production Invention relates to porous mould for production of ceramic articles, particularly, ceramic plumbing ware, by solid moulding. Mould S comprises at least two parts to be jointed together to form a ceramic article moulding cavity to be filled with moulding fluid at pressure. Internal constricting means are arranged between at least two inner surfaces of the mould (S) that make the cavity wall sections to operate therein. Said means are designed to retain said two parts as-closed. Said means are made directly at appropriate mould (S) inner surfaces to joint together. That is, to penetrate, one into another, to ensure stable relative position of the mould (S). |
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Vibrating mixer includes a mixing chamber with material loading and unloading openings and a rotor with blades. Two devices are rigidly fixed in the centre in lower and upper parts of the mixing chamber: lower and upper vibrators made in housings with excitation of oscillations by means of lower and upper crank-and-rod mechanisms respectively. Housings of vibrators are made in the form of similar corrugated metal covers representing thin-wall rotation bodies forming complex flattened geometrical forms in the section of vertical plane at vertex points of corrugations, which are formed with middle intersection of three circles with centres representing vertexes of a regular triangle and radii equal to height of this triangle. Inside covers there rigidly fixed in the centre in horizontal plane are discs with guide posts. Discs of lower and upper vibrators are provided with cylindrical projections, the function of which is possible insertion and fixing along inner diameter of springs installed with a function of free compression/tension in shells, to the centres of internal parts of which stocks are rigidly attached, and pushers are attached to the centre of external parts, which are rigidly fixed with the other end to internal parts forming the smallest corrugations of corrugated metal covers, and having the function of excitation of oscillations from the smallest of corrugations of vibrator housings. Four projections are symmetrically fixed on external cylindrical parts of shells. |
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Vibration mixer comprises a mixing chamber, a rotor with blades. In the top and bottom parts of the mixing chamber, two vibrators: lower one and upper one, are set in the centre and rigidly fixed, they are made in casings and generate vibrations by lower and upper crank mechanisms respectively. The vibrators' casings are made as identical metal corrugated shells being thin-walled bodies of rotation which in the vertical plane of their sections provide for complex truncated geometric figures by corrugation peaks points, the figures are formed by mean intersection of three circles with the centres being the vertices of a regular triangle and with the radiuses being equal to the altitude of the said triangle. Disks with guide posts are rigidly fixed inside the shells and are set in the centre in a horizontal plane. The disks are fitted by cylindrical protrusions. Four protrusions are symmetrically set on the outer cylindrical parts of cups. A spring vibration generator made as a spring set is installed in the centre between the casings of the lower and the upper vibrators, the spring set consists of at least two springs of different diameter which are fixed at the diameters of recesses formed on the outer surface of the metal corrugated shells by the set of the smallest corrugations out of the corrugations of the lower and upper vibrators. |
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Modular planetary concrete mixer for concrete production Planetary concrete mixer for production of concrete at construction sites and at manufacturing enterprises for preliminary manufacturing of building elements comprises a reservoir equipped with a reducer unit, having mixing facilities and components of their drive, and the upper central part of the fixed body has a feeding unit. The system to distribute water, cement and additives is installed on the fixed body of the reducer and comprises a set of concentric pipes, where the first extreme internal pipe is designed to supply cement, the external concentric pipe is designed to remove dust, and since it is concentric to the pipe for cement, it limits formation of cement dust, and the last extreme external concentric pipe is used to supply water. This pipe, due to a section with a conical lower edge, distributes water in the form of an umbrella water and additives flow radially along the entire surface of the reservoir via holes, arranged with even intervals, at the same time additives get into the water pipe via connections. |
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Device to discharge ceramic products from shaft furnace Device for discharge of ceramic products from a shaft furnace comprises a mechanism of charge lowering in the form of a lifting-lowering shaft with protruding elements, a mechanism of charge fixation and a diverting conveyor. At the same time the charge fixation mechanism includes a combination of parallel bars connected at one end by a crosspiece and installed as capable of horizontal reciprocal movement and placement of the charge in through channels with support of free ends of bars at support elements. The diverting conveyor is made in the form of a combination of parallel paths driven synchronously and in one direction. At the same time the diverting conveyor is mounted on the lifting-lowering shaft. Conveyor paths are placed on protruding elements of the shaft made with beam shape, aligned along the bars of the fixation mechanism and stretching between them as the shaft is raised. |
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Remelting of extruded briquettes containing oxides and solid carbon in induction crucible furnace This method exploits extruded briquettes. These briquettes contain oxides and solid carbon. Electrically conducting charge is fused by arc discharge initiated between said charge and graphite electrode. Said briquettes are loaded in portions around said graphite electrode to make a protective layer between electric arc and crucible wall. Then, inductor is switched on and, as briquettes are heated in liquid molten pool and reductive metallisation develops, solid electrode is used to decrease the electric arc discharge power. Now, inductor power is increased as active slag is formed on molten pool, its temperature exceeding that of molten pool. |
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Method of cutting, used device and cutting tool for extruded plastic profile Invention relates to processing of extruded plastic sections. Toothless disc cutter is used for cutting. Proposed cutter consists of the blade on inner circle and cutting edge on outer circle. Toothless disc cutter features the cutting edge with angle of tooth outline β=2°-6° for half-round blade or with angle of tooth outline α=4°-12° for two-edge cutter. Cutter is driven at linear speed of 20-100 m/min at feed rate of 0.3-0.7 m/min. At cutting, lubricant is sprayed onto disc cutter from sprayer nozzle. |
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Method to manufacture non-autoclave concrete foam products Method to produce construction products from foam concrete includes separate preparation of foam and mortar mixture, their mixing or single-stage preparation of foam mass with subsequent laying into moulds, soaking, removal of formwork, steaming and removal of the product mould. At the same time after laying the foam concrete mass onto full volume into a stiff perforated mould it is closed with a cover, creating a closed volume, and connect to the AC network via plate electrodes arranged on two opposite sides of the mould. The mass is exposed to electric heating with current of industrial frequency 50 Hz with voltage of 50-80 V for 15-20 min. After electric treatment the product is maintained for 40-60 min to remove temperature stress and gain structural strength. Then formwork is removed. After this the product heated to 60°C on the tray arrives for further thermal treatment. |
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Production of foamed construction materials Invention relates to production of construction materials and can be used for fabrication of ceramic bricks, stones and blocks. Proposed method comprises preparation of foam-ceramic mix from clay stock, water, foaming agent, binding agent, drying, annealing and forming. Note here that, additionally, foaming agent PB-2007 is admixed as a plasticising agent while finished product ground to 1.25-5.0 mm fraction or perlite sand are used as binding additive. Then, obtained mix is poured in flat moulds and dried, first, at 30-35°C and, then at 50-56°C to make an integral blank to be withdrawn from the mould, annealed at 800-1600°C and formed to blocks. |
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Method to manufacture an item includes attachment of walls to a tray of a split mould by means of fixation elements. At the same time a part from hardened water with frozen-in embedded elements is installed under conditions of negative temperatures into openings made in walls or tray, wrapped with a polymer film or greased paper, with the possibility to support the part with the help of at least one support arranged on the tray with a flat or a curvilinear site to retain the part from the hardened water. Afterwards the mould is filled with a concrete mix with anti-freezing chemical additives. The content of the mould is compacted and left to harden under conditions of negative temperatures. After hardening of concrete the part from hardened water is changed into liquid condition or damaged mechanically. The finished item is withdrawn. |
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Proposed extruder can be used in various industries, for example, chemical industry (production of catalyst, sorbents, etc), food industry (production of mid products and dry concentrates), agriculture (production of mixed fodder, macro encapsulated seeds), woodworking, construction materials, machine building, etc. Said extruder is intended for processing of high-concentration polydisperse compositions of higher viscosity, limited shear strength and low adhesion. It consists of the housing accommodating the sleeve with trapezoidal ledges, their larger base being directed outward, filled with elastic inserts on its inner surface, screw and spinneret. Extruder sleeve ups the forming stability of superfine compositions without changing the riffled sleeve design, that is, decreases idle time caused by bulk fall from riffles at strained axial cross-section, i.e. gap between screw flange and housing riffled sleeve. |
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Concrete mixer of continuous action Concrete mixer of continuous action comprises a drum with a rotation drive, facilities for loading and unloading, a drum is made along the perimeter in the form of a multiple thread helical surface with helical grooves inside the body in the form of pockets of curvilinear shape with centres of curvature of pockets of curvilinear shape of the helical surface, arranged inside the cross section of the drum, is made of three and more identical strips of rectangular shape, twisted in the longitudinal direction relative to the longitudinal axis and bent along the helical line in the transverse direction on the cylindrical holder of strips of rectangular shape, with formation of three and more inner curvilinear surfaces along the body perimeter with convex shape with centres of curvature inside the drum and formation of overlaps inside the drum in the form of helical surfaces along the entire length of the drum from the inlet to outlet hole. |
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Machine for continuous production of items from reinforced or prestressed concrete Invention relates to the field of construction, namely to structures for continuous production of items from reinforced or prestressed concrete. A machine for continuous production of items from reinforced or prestressed concrete comprises an upper hopper, where concrete is supplied; a hopper for dosing of concrete inside the machine; a retaining form with a barrier knife, a vibromould for compaction; a moulding die, for giving final shape to items from concrete at the outlet from the machine. At both sides of the moulds there are sealing side rubber gaskets. The body of the machine hopper is made according to the shape of the truncated cone, installed so that starting from the loading chamber arranged in the upper part the hopper body expands to the bottom. |
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Invention relates to the field of construction, namely, to structures and methods for manufacturing of bricks. The device for manufacturing of special formats of construction bricks, in particular, silicate bricks, for moulded blanks of building bricks comprises a sawing device for sawing of building bricks or their moulded blanks and a feed device for feeding of building bricks or their moulded blanks to the sawing device. The feed device includes an upper element, made as capable of lying building bricks on it or a moulded blank, and a lower element arranged at the distance from it. The sawing device or the saw blade of the sawing device is made as capable of rotation relative to the feed device around the axis, in particular, for making inclined saw cuts or cuts for connection into a mitre joint. The upper element of the feed device is made with a gap for the saw, through which at least partially the sawing device or the saw blade may go. The axis of rotation of the sawing device or the saw blade is arranged, at least approximately in the field of the upper element of the feed device, in particular, in the area of the support surface for a construction brick or its moulded blank. The upper and lower elements of the feed device limit the intermediate space, formed so that at any angular position it may receive the sawing device or the saw blade. |
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Invention relates to production of decorative panels. Split form comprises pan, fasteners, sidewalls and end walls with openings for inserts to be fitted there through. Note here that said openings allow fitting the detachable parts in to suspend inserts filled with inlaying material. |
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Invention relates to the field of construction, namely, to devices and methods for laying liquid paste onto a moving shaping web. The device comprises a discharge box installed as capable of rotation for laying of liquid paste at the inner lower surface of the discharge box from the inclined drain in the form of a continuous flowing web onto the moving web. The discharge box is installed across the direction of moving web movement. The discharge box is made with vertical edge boards, including the rear edge board of the discharge box and two opposite side edge boards, with pivots installed on the external surface of two opposite side edge boards of the discharge box, for installation of the discharge box on the appropriate opposite side walls of the conveyor for the moving web, with vertically adjusted forks and with facilities for adjustment of the angle of inclination of the discharge box up and down for adjustment of the flow of liquid paste from a drainage facility. On the external surface of at least one vertical edge board of the discharge box there is a vibrator installed. |
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Invention relates to devices for mixing of a concrete mix and may be used in construction industry for production of multi-component mixes. The vibration mixer comprises a mixing chamber with windows for materials loading and unloading, a rotor with blades. In the lower and upper parts of the mixing chamber in the centre there are two, lower and upper, vibrators are rigidly fixed, being made in the bodies, with excitation of oscillations by means of lower and upper crank mechanisms, accordingly. Bodies of vibrators are made in the form of identical metal corrugated shells. Inside each shell in the centre in the horizontal plane there are discs rigidly fixed with guide stands. Discs of the lower and upper vibrators are made with cylindrical ledges, the function of which is the possibility to insert and fix springs along the outer diameter, installed with the function of free compression/decompression in sleeves, to the centres of inner parts of which there are stems fixed rigidly, to the centre of outer parts - pushers, rigidly fixed by the other end to the inner parts, forming the smallest from corrugations, metal corrugated shells. Along outer cylindrical parts of sleeves there are four ledges fixed symmetrically on each one, the function of which is to transfer reciprocal movements to discs. Between the bodies of the lower and upper vibrators in the centre there is a spring vibration exciter in the form of a spring group comprising at least two springs of different diameter, which are fixed at diameters of grooves formed on the outer surface of metal corrugated shells with a group of smallest corrugations of lower and upper vibrators. |
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Invention relates to concrete mixers and may be used in other fields of construction. Said mixer comprises mixing chamber with material loading and discharge openings, vaned rotor and rotary drive. Said encased bottom and top vibrators excite three equal-amplitude different-frequency vibration fields by top, mid and bottom crank gears. Cases of vibrators are composed of metallic corrugated shells that form truncated circles in vertical plane section over crimp peaks points. Disk with cylindrical ledge is secured inside shell, at the centre of horizontal plane, to be fitted and secured over spring ID, spring being arranged inside the barrel to contract/release therein. Con-rod driven by top crank gear is rigidly secured to disk inner top part centre. Pusher is attached to outer parts centres, opposite ends of said pushers being rigidly secured to inner parts forming smallest crimps of corrugated shells. Disc can excite oscillations from vibrator central part with the help of four pushers. Vibrator top part is secured to disc bottom part while its bottom part is articulated with lower crank mechanism con-rod hinged assy. Top vibrator shell horizontal plane centre accommodates disc with guide post rigidly secured thereat to allow stable directed translation of con-rod from translation pair composed by mixing chamber top guide post, blade drive guide post and top vibrator con-rod, top crank mechanism and cylindrical ledge. The latter can be fitted in and secured in spring ID, spring being clamped/released in the barrel. Con-rod is rigidly secured to inner part centre while pusher is secured to outer part centre. Pusher opposite end is rigidly secured to inner part that forms the smallest crimp of top vibrator shell to excite vibration of said smallest crimp of top vibrator. Four ledges are secured in symmetry to barrel outer cylindrical surfaces. Spring vibration exciter is arranged at the centre between said top and bottom vibrators. Said exciter consists of at least two different-diameter springs secured to recesses made at outer surface of shells by the smallest crimps of top and bottom vibrators. |
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Tool assembly and tool for cutting or sawing machine Invention relates to tools for cutting or sawing machine. Tool assembly comprises first tool with shaped disc cutting plate, plate first leading element and second part. note here that the latter comprises either plate second leading element, or second tool including shaped disc cutting plate and second plate leading element. Note here that first tool is locked at second part by central clamp. Note also that every cutting plate comprise central hole formed by central edge and peripheral cutting edge that make the tool working part. Note that leading elements of the plates can rotate along with shape disc cutting plate about rotational axis. At least, one of leading elements comprises peripheral leading surface to interact with endless drive. Every plate leading element comprises central locking part including at least one hole for clamping first leading element at second leading element by central clamp. At least one shaped cutting disc includes at least partially recessed section nearby central hole. Note here the recessed allows locking of shaped cutting disc at appropriate plate leading element by clamping said recessed section axially between main part and plate supporting part of appropriate leading element to make, in fact, a flat outer surface of every tool extension. |
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Hopper with inclined electrodes for electric heating of concrete mix Invention relates to the field of construction, namely, to structures for electric heating of a concrete mix in construction conditions. The electric heating hopper of cyclic action is made as installed with the angle of inclination 70…75° to the bottom by steel plate electrodes having horizontal strip cuts with height of 8…10 mm, arranged along the height of the electrode via 5…6 cm. |
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Method to expand tunnel relates to mining, namely: tunnelling, tunnels or mines with supports or without them; methods or devices for their tunnelling, planning of tunnels or mines with additional drilling and cutting devices. The method includes drilling of boreholes by a stiff tool, formation of ridges by means of serial cutting of both at least two strips and cutting of ridges. Cutting of strips that form ridges and cutting of ridges is done by a diamond rope, which is placed onto a rotary tool and rollers, which are then fixed inside the boreholes drilled previously along the design contour. The rotary tool is fixed at the side opposite to the rollers, afterwards the rotary tool is driven. Boreholes are drilled along the design contour, made of points connected in pairs, at the bottom and top with serial displacement aside by a certain pitch. For cutting of strips they use at least two boreholes arranged at one level or at different levels. For cutting of ridges they use at least two cut strips arranged perpendicularly or at a certain angle to each other. |
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Invention relates to production of mortars. Concrete mixer comprises drive and drum. Said drum is made to form three and more zigzag right and left helical lines at its inner perimeter directed opposite each other. Besides there are three and more helical grooves at equal pitch composed of sections of two subsections made up of interconnected alternating isosceles trapeziums and triangles. The bases of the latter in a subsection are opposed. Said sections are interconnected by larger bases of trapeziums. Said subsections are connected so that the bases of isosceles triangles of one section are connected to top base of isosceles trapeziums in second subsection. Note that bases of isosceles triangles of second subsection are connected to top base of first subsection isosceles trapeziums. |
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Proposed concrete mixer comprises rotary drive, drum and working member composed by isolated rolling rods. Said working member is composed of multistart helical surface with helical grooves inside and outside said rolling rods at acute angle to their rotational axes in the form of curved pockets with centres of curvature of pocket curved helical surface. Said pockets are arranged alternatively outside and inside roll rod cross-section. Said pockets are composed of at least one coiled strip with turns connected along lengthwise edges. Said strip is bent in wavy manner at acute angle to its lengthwise edges along creases to make helical surface with helical grooves inside and outside said rolling rods at acute angle to their rotational axes in the form of curved pockets directed to their rotational axes at acute angle over inner and outer surfaces. Said pockets can vary in both shape and size along perimeter of rods-rolls. Distance between flexure lines equals the sum of perimeters of pockets of inner and outer surfaces. Note here that hollow helical surfaces of roll-rods are filled with metal or concrete. |
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Method to manufacture dispersed-reinforced concrete products Invention relates to construction, namely, to methods of manufacturing of dispersed-reinforced products. The method for dispersed-reinforced concrete products includes laying of a concrete mixture with layer thickness and filling of the layers with fibres, so that its longitudinal axis is perpendicular to the cross section of the product. The outer layers are filled with large amount of the fibres, compared to the inner ones, and the central layer is not filled with the fibres. |
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Invention relates to production of mortars. Housing features helical shape with polygonal helical surface along its inner and outer edges and is composed of sections made up of two subsections. The latter are made up of bands flexed in one side along straight creases inclined to band edges and coiled to form, over band length, the different-side equilateral, isosceles and scalene triangles. Sides of triangle differ by one linear magnitude multiple of delta. Two equal scalene triangle larger sides smaller than the side of large equilateral triangle by one linear magnitude delta multiple of integer are located on both sides of the largest equilateral triangle. Smaller equilateral triangle is attached to mid side of the latter on one side of the band. All sides of said smaller triangle are smaller than said largest equilateral triangle by one linear magnitude delta multiple of two. Isosceles triangle base is attached to second side of smaller equilateral triangle, isosceles triangle lateral sides are smaller than its base by linear magnitude delta, hence, smaller than the side of the largest equilateral triangle by linear magnitude multiple of three deltas. Isosceles triangle is attached to the side of the latter, its base being smaller than its side by magnitude delta, hence, smaller than the side of largest equilateral triangle by four deltas. Lateral side of isosceles triangle with base smaller than is side by magnitude delta, hence, smaller than the side of largest equilateral triangle by three deltas, is attached to second scalene triangle mid side on band opposite side. Isosceles triangle is attached to the side of the latter, its base being smaller than its side by magnitude delta, hence, smaller than the side of largest equilateral triangle by four deltas. After coiling the band, band edges of lines magnitude smaller by four deltas than the side of largest equilateral triangle are interconnected to make subsections. Said subsections have square-like opening on their one side, opening side being smaller than that of the largest equilateral triangle by three deltas. On opposite side, they have opening shaped to isosceles trapezium with larger base equal to side of the largest equilateral triangle and smaller base smaller than larger base by three deltas. Trapezium sides are smaller than larger base by two deltas. Aforesaid subsections are connected by trapezium-shape openings to make square-like sections with inlets and outlets, square sides being equal. Said openings are arranged at an angle, its magnitude defining the working chamber helical shape. Said sections are connected with alternate turn relative to each other. Every next section is turned through 90 degrees relative to each other clockwise. Then, every next section is jointed with turn in reverse direction, also, through 90 degrees. |
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Invention relates to the field of construction, namely, to structures of cassette moulds. The mould is designed for production of wall blocks with automatic form stripping and simultaneous unloading of blocks directly onto a tray or into a body of a car. It comprises external and middle boards, fixed on flexible crosspieces, and a cassette also with a flexible tray, separating and end walls. External boards are connected to each other by traction rods and clamping wedges. Traction rods are equipped with crossbars, interacting with the inner side of external boards in their form stripping position. In external boards there are windows for horizontal and vertical displacement of traction rods with crossbars. To facilitate tipping of the mould, its slinging journals are installed so that their axis is arranged between the centre of gravity of the mould with products and centre of gravity of the mould without products. |
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Mixer comprises frame accommodating bowl running in bearings relative to its axis and bracket mounted at vertical post with mixing vaned shaft, vane drive and bowl rotary drive. Mixing shaft axis is located parallel with bowl rotary axis. "П"-like fork is fitted at mixing shaft end with vanes rigidly fitted at fork ends. Note here that vanes in horizontal plane are turned inward at 10-12 degrees to diametre towards vector of rotation speed. Note also that said vanes in vertical plane are inclined at 10-12 degrees to vertical in direction of vector of rotary speed. Bottom and top ribs of said vanes are wavy. |
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Invention relates to construction, particularly to production of cellular concrete particles. Proposed method comprises separate preparation of mortar and water, making foam of surfactant and water, mixing said mortar with foam, foam making, moulding the mix in the mould and thermal processing of article. Mortar is made by mixing water and cement at the following ratio, in wt %: cement - 25.0-58.0, water - 43.0-29.0. Cement is added into vessel with water at constant mixing to obtain homogeneous mortar. At a time, foam-like medium is made by mixing anionic and/or nonionic surfactant in amount of 0.05-0.2% per 30.0-9.0% of water degassed by thermal treatment at 20-95°C. Mixing is conducted by rubber disc fitted on drive shaft at 1000-3000 rpm. Obtained foam-like medium is added to mortar and mixer by mixer composed by piston engaged with drive to reciprocate vertically to produce homogeneous mass. Said mass is poured into molds and solidified at 1-37°C. Now, semi-finished moulded article is withdrawn to be cured at ambient temperature to solid state. |
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Invention relates to machine building and can be used for drilling holes in stones, concrete etc, for anchor bolts. This drill comprises cutting part with at least three noses spaced apart at drill far end in circle. Every section of said nose has front and rear faces making a connection ridge that serves as a cutting nose and drill body with its far end surface welded to drill cutting part near end to make drill body revolve jointly with drill cutting part. Drill body has dust suck-off channel extending there along so that its far end extends to drill body far end section. Extra dust suck-off channel is made at drill body far end section to extend from dust suck-off channel perpendicularly while extra dust suck-off channel radially outer end is exposed at drill body outer peripheral surface. Drill bit cutting part near end is wholly welded to drill bit far end surface. |
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Steel pipes lined by injection-moulded concrete or mortar and methods of their fabrication Lined steel pipe intended for transfer of fluid comprises circular lining of concrete or mortar that makes pipe ID and metal shell enveloping said lining. Lining stays in direct contact with metal shell wall inner surface. Note here that said lining is prestressed by metal shell at initial state prior to putting said pipe in operation for transfer of fluid. After putting said pipe in operation for transfer of fluid lining prestressing at final state is in fact ruled out. |
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Method of making ceramic tips for fibre-optic connectors Invention relates to the technology of making precision fibre-optic components and specifically to the technology of making tips for fibre-optic connectors. The method of making ceramic tips for fibre-optic connectors involves preparing a mixture of fine zirconium dioxide powder with binder, moulding a workpiece of the tip by pressure moulding using a cylindrical mould with a cylindrical metal insert which forms an inner through hole, removing the workpiece of the tip from the mould, removing the insert, calcining and sintering the workpiece, followed by mechanical treatment of the surface of the workpiece. The workpiece is sintered with the cylindrical metal insert, which forms an inner through hole, in an inert medium, and the cylindrical metal insert, which forms an inner through hole, is removed from the workpiece after sintering by drawing at subzero temperature, wherein the inert is a wire element whose cross-section is identical to that of the optical fibre. |
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Equipment for anchor positioning at prefabrication of panels from reinforced mortar Invention relates to construction, particularly, to equipment for anchor positioning for prefabrication of panels from reinforced mortar. Proposed equipment comprises some multi-purpose drives dipped in mortar and not extending from displacement panel surface and/or attachment of said panel to building structure. Said drives comprise means for retention in hardened mortar and panel attachment means, on one side. Attachments have fixed bed to accommodate elastic bearing appliances to mount aforesaid drives and, on opposite side, for connection with moving carcass with grippers. |
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Invention relates to construction, namely, to vibrocompaction of mineral-polymer mixes. Vibratory platform comprises actuator and balancing frame mounted on the bed and articulated by elastic elements, said frame being furnished with buffer elements mounted thereat and their drive, and vibration exciter. It is equipped with elastic element vertical loading mechanism composed by system of ropes, rope tensioning winch with buffer element. Balancing frame is composed of a hollow parallelepiped with through holes at the angles of the top plane. Said elastic element vertical loading mechanism is arranged inside said balancing frame. One rope ends are passed through aforesaid holes and rigidly fixed at actuator angles. Opposite ends of ropes are secured at moving clamp via system of rolls. Tensioning winch and moving clamp are connected by buffer element. |
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Invention relates to production of mortars. In compliance with first version, mixer drum perimetre is composed of multistart helical surface with screw grooves inside and outside said drum at the angle 5°-30° to rotational axis of the drum in the form of curved pockets with centers of curvature of said pockets arranged alternately inside and outside drum cross-section. Said drum is composed of at least one coiled strip with turns connected along lengthwise equal-width edges. Said strip is bent in wavy manner at flexure lines to make aforesaid unilateral helical surfaces in the form of curved pockets along outer and inner surfaces at the angle 5°-30° to the drum rotational axis. Said pockets can vary in both shape and sixe along perimetre of rods-rolls. Distance between flexure lines equals the sum of perimetres of pockets of inner and outer surfaces. In compliance with second version, mixer drum perimetre is composed of multistart helical surface with screw grooves inside and outside said drum at the angle 5°-30° to rotational axis of the drum in the form of curved pockets with centers of curvature of said pockets arranged alternately inside the drum cross-section. Said drum is composed of one equal-width strip coiled in helical turns interconnected along lengthwise edges and bent in wavy manner over crease lines located at the angle thereto. It makes screw grooves and screw surfaces inside and outside said drum at the angle 5°-30° to rotational axis of the drum in the form of curved pockets with centers of curvature of said pockets arranged alternately inside the drum cross-section. Said pockets can vary in both shape and sixe along perimeter of rods-rolls. Note here that distance between flexure lines equals the sum of inner perforated surface pocket perimetres. |
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Automated device for handling autoclave cars Invention relates to control over carriers at concrete mix autoclaving bays and can be used at construction enterprises for production of cellular concrete articles. Proposed device comprises many-tier vertical store with load-bearing structure, autoclave crane, train with autoclave cars and drive to roll it out from autoclave, separate controllers with control programs dependent on central computer.It is equipped with fork lifter with three positioning systems displacing horizontally on extra track, strain gage and three laser transducers, two of which being secured at fork lifter. It incorporates distance transducer to track current and made distance relative to reference point and transducer to track current height of car lift. Third transducer is arranged at load-bearing structure of many-tier vertical store to track the store current height. Strain gage operates at positioning of autoclave car to start store system. It is located at store section rails. Data received from all transducers is fed to controller for further processing and transmission to appropriate target. |
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Split mould contains rigid walls, fasteners, a pallet with demountable plate mounted on it. The plate is separated into interchangeable parts and is designed with holes for arrangement of fibre-optical waveguides. |
Another patent 2513966.