Production of heat isolation blocks by counter compaction for erection of guarding structures and buildings
FIELD: process engineering.
SUBSTANCE: invention relates to production of construction materials, particularly, heat isolation blocks. Production of heat isolation blocks with flat moulded or faced concrete stone, heat isolation layer and concrete inner layer integrated by appropriate reinforcements comprises filling proportioned amount of concrete, facing stone, heat isolation layer with reinforcements and proportioned amount of concrete of inner stone. Note here that concretes are compacted by compaction and vibration of concretes of face and inner stones through heat isolation layer located there between to produce integral heat insulation bock prepared for demoulding.
EFFECT: higher quality.
The invention relates to the production of building materials, namely, production&. Teleblock - combined multi-layered stone for manual masonry enclosing walls of buildings and structures, structurally composed of concrete facade of stone, insulation layer, for example of polystyrene, and internal concrete stone. In turn, the inner stone generally serves as a carrier for the self-supporting walls. In the production of the stones and the insulating layer are called layers. To bond the layers into a single unit apply reinforcing communication without restrictions on material from steel to composite reinforcement.
The method includes loading in the form of vibropress metered quantity of concrete with a low water content of the facade layer, the loading of the heat insulating layer with a pre-inserted reinforcing ties within the facade layer and protruding toward the inner layer, the loading of a metered quantity of concrete with a low water content of the inner layer, characterized in that the sealing layer of concrete is produced by vibration and pressing perpendicular to the axis of the pressing facade and inner layers of concrete through in between the insulating layer, resulting in teleblock without violating the integrity of layers, ready the th right to resealable, and after resealable free form of vibropress ready for production next tallbloke.
The closest technical solution is a method for the production of multi-layer building blocks with decorative outer surface. The patent for the invention №: 2250163 B28B 5/00, including die-casting concrete from the hopper, seal it by vibration, moving forms on the conveyor line, drying units forms in the process of moving, cooling the mold and extraction of block form, characterized in that the block forms comply with paired cells between the walls which fulfill the gap, and with mortgages dogami that pre all cells form the stack matrix of the surface layer and at the same time filled with a mixture of two arranged in a single row across the conveyor line paired cell shape, forming a first layer of concrete, by filing servings concrete from the hopper, dosing filling for each pair of cells a portion of the concrete equal to the filling of each cell is not more than 1/6 of its parts, and moves the form of a step equal to the width of the cell, control the position of the subsequent transverse pairs of cells relative to the hopper, consistently fill the entire transverse pairs of cells form, produce compaction of the first layer by vibration, pre-fixing the form, take shape under the first hopper, compacted p is pout concrete layer stacked insulating layer, permeate formed two layers connecting rods, placing them at different angles in the vertical plane, leaving loose ends, bring the form to the second bunker, dosing filling it under each pair of cells a portion of the concrete in the amount of not less than 2/5 of the volume of each cell sequentially fill the paired cell shape, move the form to a step equal to the width of the cell, control the position of the pair of cells relative to the second hopper, condense the second layer, the pre-fixing the form, then move the form with the generated blocks in cells forced drying, which is carried out in the process of moving forms on the conveyor line at a temperature of not less than 40°, for at least 12 h, then cooled form to the ambient temperature, remove blocks by pulling from the cell together with mortgage loans dogami, stack them, putting on the sides, remove the matrix of the surface layer and send or additional drying or storage.
However, the proposed method does not allow continuous, uninterrupted strict dosing layers because of the inevitable and rapid build-up of concrete in the dosing device. The use of multiple forms with multiple different sizes, leads to increased errors of the geometric dimensions & Necessity in many forms requires a large amount of metal to manufacture and complicated technological process of manufacture to achieve the best possible identical geometrical dimensions of the forms. Move the blocks in forms increases by the weight of these forms of energy work to move the blocks during the curing. Fill the forms with concrete and compaction by vibration leads to the wrapping of the insulating layer concrete milk that creates bridges in the finished wall when using such&.
The objective of this invention is to improve the quality&, reducing the metal used equipment, improve energy efficiency and manufacturability of themselves&.
One solution to the problem is the following: installed on the plane, having the ability to create vibration efforts, (hereinafter the vibrating table) form for moulding & has parallelepipedal cavity, divided into two parts slide gate (the gate), the upper part of the cavity above the gate is a dispenser facade layer of the desired volume. When closed, the gate into the mold cavity is filled with concrete to excess by volume, the resulting surplus is removed by shifting the towering concrete away from the opening of the mould cavity. Opening the gate is dropping dosed concrete in the lower part of the mould cavity under the gate, in the vacant cavity is then pushed into the layer of facade insulation layer, in advance permeated with exposed rebar up and down what anzame, the lower ends of the valve penetrate the facade layer, the top remains speakers to backfill concrete inner layer, the shape is made so that the remaining cavity above the layer of insulation of required volume and is used for the inner layer. Into the mold cavity is lowered, the plunger having a flat shape parallel to the layers, with dimensions corresponding to the opening of the mould cavity. Turns on the vibrating table. The plunger with sufficient force, continues to compress the layers to a specified size in height. After reaching the planned height of tallbloke the combined effects of compaction and vibration (counter-making) is stopped and the plunger still holds teleblock, when this form is tightened up (hereinafter resealable). After resealable which still teleblock the plunger rises from tallbloke at a sufficient distance and ready teleblock moved to the area of curing, and the spout and form, peeled passed through the cavity of the plunger, ready to repeat the process without stopping the service, preserving the volume parameters. The result is the & have the following geometric parameters: the height of not more than +/-2 mm, width not more than +/-2 mm, the thickness (wall) not more than +/-5 mm and the location of the heat insulating layer in tallbloke no more than +/-5 mm To obtain Teplov the shackles with decorative (molded) or faced with stone facade in front of the above actions on the vibrating table in a form fit front matrix, empty or filled with coloured concrete, respectively.
The way counter-pressing & differs as follows:
molding concrete layers is produced by a counter-pressing through the insulation layer in between;
uses the full non-stop cleaning the metering device in the production of each tallbloke;
uses one form for all production&;
decrease the intensity and the technological production of the equipment used;
requires a minimum of cost moving & during curing;
concrete with a low water content little swells on the insulating layer and, if necessary, can be easily removed;
applicable for industrial production edgings & decorative stone facade.
The result of this invention is to improve the quality&, namely the geometric dimensions and the absence of adhered concrete on the insulating layer, the decrease of metal used equipment, improve energy efficiency and manufacturability of themselves & at high productivity.
Method for the production of counter-making of tallbloke flat, molded or coated concrete facade Cam is eat, the insulating layer and internal concrete stone, United into a whole by reinforcing ties, including loading in the form of a metered quantity of concrete facade of stone, download the heat insulating layer with reinforcing ties, loading a metered quantity of concrete internal stone, characterized in that the compacted concrete by compaction and vibration perpendicular to the axis of compaction of the concrete facade and interior stones through in between the insulating layer, resulting in a gain teleblock without violating the integrity, ready to resealable.
SUBSTANCE: construction material is made in the form of unit from rows of bottles fixed together, in which the bottles are stacked in horizontal rows, besides the necks of neighbour bottles are oriented in opposite directions with thrust into the side walls of the unit, made of completely or partly transparent material, and the bottles are secured with each other via lateral surfaces by means of cement mixture.
EFFECT: simplification of the manufacturing process, increase of the strength of construction material.
SUBSTANCE: group of inventions relates to methods and ways to erect and construct cast-in-place concrete frame buildings with different number of floors with multilayer walls that do not require insulation, additional treatment and finishing of internal and external surfaces, from multi-layer panels with longitudinal internal cavities, and also to equipment for production of construction materials, to large-panel folding formworks. In the method to manufacture multi-layer panels, the decorative layer is applied by the method of concrete guniting, and longitudinal through channels are formed in a heat insulation layer. In the multilayer panel they arrange a strengthened layer between the decorative layer and the heat insulation layer, and the heat insulation layer is equipped with through longitudinal channels. In the folding formwork they arrange additional end boards with folding, non-folding and collapsible boards, and upper end boards are equipped with fixators for longitudinal pipes. In the process line for manufacturing of multi-layer panels they use a multi-stream section for filling of formworks, comprising several lines with tilters for reloading and distribution of formworks along the lines in the inlet zone and for step feed of filled formworks from the outlet zone into the stacking zone, and the section of drying of finished panels in formworks is equipped with chambers of heat treatment and a stacking crane, besides, the process line is equipped with facilities for unloading of panels from formworks with subsequent tilting of panels with a decorative layer upwards, their washing and drying. In the method to erect a cast-in-place concrete frame building with decorative external finishing they use multi-layer panels with a strengthened layer, arranged between the decorative and heat insulation layers, in which cavities for pouring concrete are made in the form of vertical channels arranged in the heat insulation layer.
EFFECT: simplified erection of a cast-in-place concrete frame building with increased strength characteristics of a building frame with prefabricated monolithic walls that do not require additional finish and repair of inner and outer surfaces, simplified process of pouring a concrete mix into longitudinal cavities of multi-layer panels during erection of building walls regardless of weather conditions, higher reliability, strength and aseismic stability of a structure, facilitated manufacturing, tilting and transportation of panels.
23 cl, 119 dwg
SUBSTANCE: thermal squared beam comprises wooden parts-lamels, connected to each other by means of pins, with deepening of the latter by 1/3 of part thickness, and a sealant between parts-lamels. The sealant is a thermal insert either from foam polyethylene or from polyethylene with a single-sided or double-sided reflecting coating using foil and/or metallised lavsan, either from a different heat-sound insulating material. Dimensions of the thermal insert by length and width are equal to dimensions of wooden parts-lamels, and its thickness is taken within the 3 mm and above. Plastic spacer rings are installed onto pins, with thickness less than thickness of the thermal insert by 0.5-1 mm, in which holes are made for these rings in advance. With reduction of pin quantity on the squared beam the outer diameter of spacer rings is increased.
EFFECT: higher heat and sound protection properties of a squared beam.
SUBSTANCE: invention relates to multi-layer power structural elements in the form of columns, towers, beams, grooves, etc., used in construction. A multi-layer power structural element comprises inner and outer layers, made by winding of reinforcing threads or rovings onto a mandrel, impregnated with a polymer binder with specified protective properties to form a solid layer, and a structural layer placed between them and stiffly connected to them, made of previously prepared volume elements, providing for adhesion of inner and outer layers. The previously prepared volume elements are made in the form of meshed longitudinal power elements with transverse links formed from reinforcing threads or rovings impregnated by a polymer binder, and the formed cavity between the external and internal layers connected by the structural layer serves to introduce a filler. Also a version of a multi-layer element is described.
EFFECT: increased reliability of an item due to provision of higher adhesion of layers with simultaneous provision of non-combustibility of protective layers, higher strength and heat resistance, increased speed of manufacturing of a finished item.
19 cl, 1 tbl, 6 dwg
SUBSTANCE: multi-layer thermal block for construction comprises a stiff spatial element - a matrix, besides, the block comprises three bearing concrete layers and two thermal insulation layers from foam plastic arranged between them, for instance, foam polystyrene, having holes for connection of three concrete layers into a single monolithic structure with the help of formation of solid links during pouring, besides, heat insulation layers are shifted relative to bearing layers along the vertical line and along the horizontal line for production of a slot and comb connection of blocks, which insulates bearing layers from each other by thermal insulating layers along edges of the block in the zone of contact with an adhesive mixture. Concrete links in one heat insulating layer are shifted relative to links in the other heat insulating layer to the maximum possible value and have the size of cross section required for provision of strength of the structure, and in case of the slot and comb connection the adhesive layer having the highest heat conductivity, in process of mounting it is broken into 5 segments, in accordance with the number of layers. Also the method and the device for its manufacturing are described.
EFFECT: higher strength of connection between block layers, higher thermal protection properties of a block and heat and wind protection properties of an erected structure, higher quality of mounting, reduced time of construction.
4 cl, 7 dwg
SUBSTANCE: invention relates to flaky items used in construction for heat insulation of buildings and premises in it. The heat and sound insulation unit comprises filler webs laid one onto another, every of which comprises a corrugated sheet with corrugations of zigzag shape and a flat sheet connected to it. In each filler web, at least at one longitudinal side of the filler web, the flat sheet is arranged with a transverse size below the corrugated sheet by value of at least half of a pitch of a zigzag-shaped corrugation, thus producing a compensator from corrugations protruding beyond the flat sheet, capable of being compressed in transverse direction for gapless laying of the filler web into a building structure. A serrated line of corrugated sheet bend matches the edge of the flat sheet of the web. In the first version of block laying into a building structure the block is pressed with its longitudinal side with a compensator to the element of the building structure, and in this condition it is installed into the filled space of the building structure. The block compensator due to action of springing forces fills a gap produced between the block and the element of the building structure. In the second version, in case of layer-by-layer installation of block filler webs into a building structure, block filler webs that are adjacent along the height of the building structure are laid with a rotation relative to each other by 180°, and thus the compensator of the below block filler web is covered with a flat sheet of the filler web sheet. In the third version, in case of layer-by-layer installation of block filler webs into a building structure with equal longitudinal and transverse dimensions, block filler webs that are adjacent along the height of the building structure are laid with a rotation relative to each other by 90°, and thus gapless laying of the block is provided at all sides of the building structure.
EFFECT: invention provides for higher heat and sound insulation properties of blocks due to elimination of gaps between elements of building structures and fillers.
4 cl, 4 dwg
SUBSTANCE: multilayer building block consists of a decorative face layer, a bearing layer and a heat insulating layer provided in between, which are fixed to each other with polymer rods. The block is arranged in the form of a prism, trapezoid bases of which are ends of the block, and non-parallel prism faces of identical area are upper and lower bases of the block. The parallel side face of the prism of larger area is an outer side of the decorative layer of the block, the parallel side face of the prism of smaller area is an inner side of the bearing layer of the block, besides, the angle between planes of prism bases and the outer side of the face decorative layer makes 89 and less degrees, on one of bases in the decorative and bearing layers there are slots, axes of which are in planes parallel to the face side of the decorative layer, with the area of section of each slot of more than 5 sq. cm., on the other base there are ledges arranged as complying with slots. The method of construction of the multilayer construction blocks is also described.
EFFECT: higher labour efficiency in erection of a building, elimination of damages on a decorative layer when erecting a building, compensation of uneven subsidence of a block during laying, strict dosing of mortar, reduced flow of concrete mortar in laying and reduced costs for erection of a building.
4 cl, 3 dwg
SUBSTANCE: wall unit is arranged in the form of a faceted structure from a hardened material, having a face surface arranged on the outer face side of the unit, an inner surface arranged on the inner side of the unit, lower, upper and side surfaces, at the same time the unit comprises a face layer, an intermediate layer and an inner layer arranged serially along its width, besides, the face layer has thickness of s1, which is less than the thickness s2 of the intermediate layer, and the thickness s3 of the inner layer is less than the thickness s1 of the face layer, the latter contains cement, a plasticiser and ground haydite with fractions within 1 to 5 mm, the intermediate layer of the unit contains cement, a plasticiser and haydite with fractions within 5 to 20 mm, the inner layer of the unit contains sand, cement and a plasticiser, the specified thicknesses of the unit layers are selected depending on the width S of the unit and are in the ratio of s1:s2:s3=(0.10-0.17)S:(0.89-0.79)S:(0.007-0.037)S, the unit comprises a L-shaped crest made in the face layer and covering it at two adjacent lateral and lower sides, and also a L-shaped groove made in the face layer and covering at two other adjacent lateral and upper sides of the unit, the crest and the groove are installed in a single plane, parallel to the face surface of the unit, the surface of the crest and the groove, the face and inner surfaces are arranged as solid and smooth, and the lower, upper and lateral sides of the unit arranged between the face and inner layers are made as rough with grooves stretching inside the unit from 0.1 mm to 20 mm between fractions, at the same time the length of the unit L at its face side is selected depending on the width S of the unit within the limits of L=(0.99-1.01)S, the length Lin of the unit at its inner side is selected as equal to the length of the unit at its face side, the face surface of the unit is arranged at the distance s4 from the crest axis, the inner surface of the unit is arranged at the distance s5 from the crest axis, which is more than the distance s4, besides, s4 and s5 are in the ratio s4=(0.08-0.16)s5. Also the versions of units design are described, as well as a material for manufacturing of a unit, versions of molds for manufacturing of a unit, the method to manufacture the unit and a line for unit manufacturing.
EFFECT: reduced weight of units, its higher strength, provision of possibility to increase strength of units connection in a wall, simplified technology of production by usage of moulds from unified elements, using a simplified method for manufacturing of units and a line for method implementation.
41 cl, 61 dwg
SUBSTANCE: tape is designed to fill seams between construction slabs. It contains a non-woven base, containing fibres, selected from a group made of natural cellulose fibres, synthetic polymer fibres, glass fibres and their combinations. At the same time the nonwoven base has the following properties, determined according to ASTM C474-05: relative swelling in cross direction is below approximately 1.3%; relative swelling in longitudinal direction is below approximately 0.2% and breaking strength in cross direction is at least approximately 2625 N/m. Besides, a method is proposed for finishing treatment of a seam between slabs, including the following: (1) application of a tape for filling seams onto a seam between slabs by submersion of a tape for seam filling into the first layer of the composition for filling seams; (ii) application of the second layer of the composition for filling seams above the tape, besides, the stage (ii) is carried out before the tape for seam filling and the composition for seam filling applied at the stage (i), have dried substantially, and if required, (iii) application of the third, filling or final layer of the composition for filling seams above the tape, besides, the stage (iii) is carried out before the tape for seam filling and the second layer have substantially dried.
EFFECT: improved quality of the tape due to high strength and reduction of swelling during moistening at simultaneous acceleration of seams filling.
20 cl, 2 tbl, 1 ex
SUBSTANCE: light heat-insulation building unit arranged in internal and external walls of a building and formed from bubble synthetic resin, comprises a connecting ledge on the upper side, so that when it is laid, no cavity is formed, a connecting slot in the basement of the unit corresponding to the connecting ledge, and also a protruding section and a section of the slot arranged on the front and rear surfaces of the unit. At the same it is equipped with an auxiliary unit having the same shape as the heat insulation unit, which is cut as "L" on a segment of the upper section of its one surface, and has a ledge of cylindrical shape on the upper section of the cut element, and is joined to one side of the heat insulation unit. Also versions of the units are described.
EFFECT: development of units that make it possible to complete treatment of building walls by attachment of a finishing material to a unit, reduction of costs, simplified process of unit formation.
13 cl, 21 dwg
SUBSTANCE: invention relates to industry of building materials and can be applied for obtaining concrete building products in industrial and civil construction. Granular nano-structure-forming filler based on highly siliceous components for concrete mixture, produced from silica-containing raw material, in form of granules with size 0.5-10 mm, which consist of core and formed on its surface protective coating from dry dust-like mixture of jointly milled quicklime and sodium silicofluoride with their weight ratio 0.85-0.95:0.05-0.15 with the following solidification to strength not less than 0.12 MPa, where core is obtained by granulation of silica-containing rock mixture, milled to passing through sieve with cell 0.315 mm, and swollen perlite sand with size of particles to 0.16 mm, in ratio 0.60-0.95:0.05-0.40 by weight, fastened by alkaline-containing binding agent, which consists of water solution of alkali metal hydroxide and Na silicate with density 1.2-1.3 g/cm3 (alkaline:silicate=0.85-0.95:0.05-0.15 by weight) in quantity 5-20% of mixture. Concrete mixture, which contains, wt %: said filler 20-50, cement 10-15, sand 25-50, water - the remaining part. Concrete building product, obtained from claimed mixture.
EFFECT: elimination of aggregation in the process of milling, reduction of density and heat-conductivity with increase and preservation of product strength, reduction of power consumption.
3 cl, 1 ex, 2 tbl
SUBSTANCE: invention can be used in producing materials for electronics, additives for rocket fuel, catalysts, lubricating oil and polymer coatings. A climatic chamber 1 is pre-cooled by a cooling apparatus 4 to subzero temperatures. Water vapour produced by a generator 5 is then released into the chamber 1. The supercooled water vapour is artificially deposited on natural crystallisation centres in the air and ice crystals are formed, which are deposited in a collector 7 and removed from the chamber 1. A mixture of particles of carbon nanostructured materials with electric arc soot is then obtained in the apparatus 3 by arc sputtering of the starting material in an atmosphere of an inert gas. The obtained mixture is mixed with the medium of the chamber 1 and ice crystals are obtained due to selective condensation of the supercooled water vapour on particles of the carbon nanostructured materials. The end product is extracted by depositing ice crystals in the collector 7, removing from the chamber 1, heating and evaporating water. Selective condensation is carried out at atmospheric pressure and temperature in the chamber 1 of minus 5°C to minus 35°C under the condition Ei<e<Ew, where e is water vapour tension in the chamber, Ei and Ew are the saturating water vapour tension over ice and water, respectively.
EFFECT: invention provides simple and safe extraction of carbon nanostructured materials.
FIELD: electrical engineering.
SUBSTANCE: photovoltaic converter manufacturing method includes application of a substrate of n-GaSb dielectric mask onto the peripheral area, formation of a high-alloyed layer with p-type conductivity on the open sections of the substrate frontal surface by way of zinc diffusion from gas phase, removal from the frontal surface side by way of anodic oxidation with subsequent hydrochloric acid etching of part of the high-alloyed layer with p-type conductivity to an optimal depth determined by a calibration curve to ensure the preset occurrence depth of p-n-transitions, removal of the p-GaSb layer generated as a result of diffusion from the substrate, formation of the rear and the frontal ohmic contacts.
EFFECT: invention will ensure increase of operational efficiency of the photovoltaic converter when used in different devices such as: solar cells and installations for light flux splitting at high magnification ratios of concentrated solar radiation as well as in systems for laser beam energy conversion and thermophotovoltaic power generators with high emitter temperature.
2 cl, 4 ex, 10 dwg
FIELD: process engineering.
SUBSTANCE: invention relates to construction, particularly, to production of construction materials by semidry vibration compaction. Facing concrete receiving hopper is provided with partitions to rule out mixing of concrete batches of different colors. Proposed method comprises forming basic and facing layers by feeding concrete mix from mixer into appropriate receiving hoppers, dispensing it into transfer cars, forming article layers by reciprocating said transfer cars above female mould, shaping basic mix by male mould, forming facing layer, and vibration compaction of the article.
EFFECT: accurate and reliable method.
9 cl, 4 dwg, 3 ex
FIELD: process engineering.
SUBSTANCE: invention relates to moulding parts from liquid moulding material. Loading device comprises loading bin to receive and transfer moulding material, loading car, at least, one vibration drive, and, at least, one displacement drive. Loading bin is loosely coupled with loading car or in said car by, at least, one rigid element. Vibration drive is mounted or attached onto loading car or therein and engaged with loading bin. Displacement drive drives loading bar and bin between position of filling, at least, one moulding tool and position of loading said loading bin with new moulding material.
EFFECT: filling at required degree, rate and regularity.
19 cl, 8 dwg
FIELD: process engineering.
SUBSTANCE: invention relates to construction, namely, to methods and devices for production of tile by shooting device. Method for production of tile by shooting device and core box with mould holder comprises feeding concrete including, at least, cement and water into mixer and compressed air to fill core box via inlet opening. Then, air is withdrawn from said box via, at least, one sieve nozzle arranged on mould holder. Tile is withdrawn from core box and fed to cutter for extending parts to be cut off. After cutting, damp tile is provided with outer layer.
EFFECT: higher quality.
15 cl, 14 dwg
FIELD: process engineering.
SUBSTANCE: invention relates to construction and may be used in production of heat insulation panels from diatomite stock. Proposed method comprises preparing and feeding diatomite mix, additives and plasticisers to up articles quality, their mixing, moulding, drying and annealing. Diatomite stock delivered from quarry, sized to at least 80 mm and subjected to iron removal, is placed into heated storage room with temperature not lower than 5°C for at least 24 h, and mixed with the following additives for mix preparation: dispersed diatomite powder bearing 90% of fractions smaller than 15 mcm and moisture content of 3-8% in amount of 7-12% of mix bulk, chalk of fraction smaller than 140 mcm and moisture content not exceeding 2% in amount of 15% of mix bulk, saw dust with 90% of fractions exceeding 0.5-2 mm and moisture content not exceeding 40% in amount of 3% of mix bulk. Prepared mix moisture content is brought to 34-36%.
EFFECT: higher heat resistance.
6 cl, 2 dwg, 1 tbl
FIELD: process engineering.
SUBSTANCE: invention relates to construction, particularly, to ceramic tile extrusion. Proposed extruder comprises metal housing and elastically deforming membrane rigidly secured thereto at multiple preselected attachment points so that tight mid-chamber is formed between said membrane and metal housing to contain incompressible liquid. Rigid bushes are fitted into elastic membrane. Each bush is arranged in the zone membrane is attached to housing in to form valve inlet that enters elastic membrane to interact with ambient medium via a system of release valves made in metal housing. Each said rigid bush comprises closing appliance that breathes air but prevents, at least partially, passage of ceramic powder.
EFFECT: higher wear resistance.
23 cl, 21 dwg
SUBSTANCE: invention relates to construction materials. The crude mixture for making wall and building stones through vibrocompression contains non-clinker slag-alkali binder and aggregate in form of sand, having the following composition in wt %: SiCb 34.1-39.9; Al2O3 9.8-11.0; FeO+Fe2O3 12.8-26.1; CaO 11.3-13.7; MgO 4.2-5.7; SO3 1.7-3.2; Na2O+K2O 1.3-3.2; percentage of other impurities 8.5-15; dry slaked boiler coal slag, additive - clay or saw dust, or microsilica or mixtures thereof with the following ratio of components, wt %: said binder 25-35, sand sand 5-15, said additive 3-15, said slag - the rest. Method of making wall and building stones from the said mixture involves tempering the said mixture with a solution which contains structured water and a polymer, placing into a mould, vibrocompression, removal from the mould and drying the stones.
EFFECT: high mechanical strength, homogenisation of the composition of concrete in the article, low density and thermal conductivity of building stones.
2 cl, 2 tbl, 1 ex
FIELD: process engineering.
SUBSTANCE: invention relates to production of construction materials by extrusion. Cavity-forming plant for producing ceramic briquette comprises housing representing rectangular plate with its two opposite sides accommodating thrust ledges to interact with the plant die inlet walls, the third side of the plate to be mounted in the area of said die inlet being furnished with cutouts directed along said two sides and designed to form weakened webs in briquette. Note here that width of every cutout is selected to comply with preset width of web in briquette.
EFFECT: higher quality.
FIELD: purification of polluted liquids.
SUBSTANCE: the invention is dealt with purification of polluted liquids , in particular, with a ceramic filter for purification of polluted liquids. The ceramic filter contains at least one plate of the rectangular form made out of a porous oxide material with through channels, on the walls of which a membranous layer out of a source material is formed, and connectors between the channels. A maximum size of a channel cross-section, a plane thickness, a connection thickness and its width are in a definite dependence to each other. The mentioned filter is produced in the device for formation, which is supplied with a preheated receiving unit and a storage unit, a means for channels formation in the plate body by a method providing for a stirring of a ceramic material of different composition in parallel in the heated and not heated mixers, commixing of blends from the mixers, filling the device for formation with the produced mixture. A formed ceramic plate is directed into the preheated receiving unit, cut out a piece by a piece as the preheated receiving unit is filled and then directed to the storage unit. After extraction from the storage unit a plate is cut for measuring pieces and subjected to burning at the temperature of 1200-1550°C. The technical result is simplification of the method and the device at production of plates of big size with the thin walls of channels.
EFFECT: the invention ensures simplification of the method and the device at production of plates of big size with the thin walls of channels.
5 cl, 7 dwg, 53 tbl, 54 ex