Screw extruder to make briquettes from sawdust |
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IPC classes for russian patent Screw extruder to make briquettes from sawdust (RU 2504473):
 Expeller for pelletising timber wastes / 2499671
Invention relates to woodworking and can be used for pelletising of timber wastes. Expeller comprises housing consisting of intake zone and zones of material compaction, forming of pellets and curing. Housing accommodate driven compaction screw with forming ledge. Hollow screw is furnished with tube for feeding of hot heat carrier for heating said screw and timber wastes in contact with its surface. Temperature gage is used to measure heating temperature.
 Screw press for compaction of solid wastes / 2455168
Invention relates to screw presses intended for compaction of solid wastes. Proposed press comprises first feed screw communicated with loading bin side bottom opening and second compaction screw. Said compaction screw is surrounded by corrugated stator body to feed and compact wastes. Feed screw features pitch and diameter exceeding those of compaction screw. Two said screws are arranged in parallel, one above or around the other to make press proper. Press length equals that of longer screw. Press incorporates appliances to allow operation of screws at different rpm. Note here that compaction screw features higher rpm.
 Archimedean screw for use in conveyors, compactors and similar devices / 2436721
Archimedean screw (1) is designed for use in a compactor for compaction of mixtures that contain liquid. The screw rotates inside an enclosure structure in the form of a sieve and comprises a shaft (2), with which a spiral (3) and several sections (4a, 4b, 4c, 4d…4n) are connected. One of sections (4b), arranged along with the material flow directly upstream the last section (4a), is made fully of the metal, and the other section (4d) is made of plastic. One of the first sections (4d), arranged in the beginning of the screw, has a spiral section made of softer plastic compared to the plastic, from which spiral sections are made of other plastic sections, or having flexible bristle (6), arranged on its surface, which is most distant from the centre. During screw rotation the soft spiral or bristle enter in contact with the inner wall of the enclosing structure.
 Press extruder for manufacture of peat blocks / 2433046
Invention relates to press extruders and may be used to manufacture briquettes for fuel, and also peat seeding containers. The press extruder comprises a frame (1) with brackets (3) for suspension on a power facility, an extruder (3) mounted on it with a hopper (4) to load process material, an auger (5) with an alternating pitch of turns, a drive mechanism with a safety coupling and a reducer. At the same time on an output shaft of the auger there is an end auger (6) with a stem (7) installed in a conical attachment (8). At the same time on the conical attachment at the end there is a gate (12) hingedly fixed, which covers the output hole of the conical attachment with its plane. At the same time the stem of the end auger does not reach the plane of the gate in the covered condition of the output hole of the conical attachment by value A, equal to the thickness of the bottom of the peat block (13). At the same time the gate has a drive with a device for adjustment of the rotation cycle.
 Extruder / 2417892
Invention relates to processing of plastic stock and may be used in food, animal feed and chemical industries. Proposed extruder comprises screw arranged in housing, made integral with adapter. Bearing is secured on said adapter. Housing accommodates extrusion die accommodating adapter with bearing to axially fix screw axle. Die inner surface has channels to withdraw products from extrusion zone arranged along generating lines. Said channels are overlapped by said bearing. Extrusion die may displace relative to housing and bearing to adjust outlet sections of said channels.
 Twin-screw extruder / 2371314
Invention is related to extrusion of materials and may be used in processing industries of agricultural complex. Extruder comprises body, two screws in the form of shafts with helical thread and bearing unit of screw shafts. Bearing unit includes race attached to body and internal bushes. Bushes are fixed on screw shafts with the possibility of axial and circumferential motions relative to race. Holes for pressed materials are available on bushes. Helical thread of shaft in each screw may be located at a distance to race, equal to 0.5 - 2.5 of screw radius. At the same time each shaft is arranged with a gradual reduction of diametre in direction of pressed material flow.
 Method of producing of briquettes and installation for briquettes' manufacturing / 2364617
Invention relates to installation and method of producing of briquettes from wastes of vegetable raw materials in the form of sawdusts of husks, peels etc. used in the capacity of secondary raw materials or for burning in domestic and industrial fire chambers. Installation for manufacturing of combustive briquettes, contains case with loading tray, outfitted by agitator, taper chamber, located by converge end to exhaust port, drive compressing arrangement in the form of fixed lengthwise taper chamber of screw with decreased to the side of exhaust port diametre and discharging into exhaust port, outfitted by changeable moulding bush and thermal processing chamber, herewith it additionally contains division mechanism on measured section, installed at withdrawal from exhaust port, implemented in the form of limiter installed with ability of movement and position fixation on guide, fixed on outlet of exhaust port, thermal processing chamber is installed co-axial to exhaust port and taper chamber up to its middle part, herewith screw is implemented at a constant pitch and with changeable end, and agitator is implemented in the form of two specular located driving screws, fixed on walls of loading hopper with ability of blade rotation towards to each other and in the direction, perpendicular to axis of compressing device-screw. Also it is described method of producing of combustive briquettes with usage of this installation. Method includes feeding of vegetable raw materials with humidity 4-12% and breakup 2-10 mm, its compressing, following forming and division, herewith briquettes are additionally thermally treated, herewith formation is implemented continuously and simultaneously with thermal processing, implemented at 150-250°C, depending on type of raw materials, forming briquette of required section, achieved by changeable end of screw and changeable mould bush of exhaust port, after what it is implemented division for measuring sections.
 Extruder press / 2348531
Extruder press consists of a housing that accommodates a screw with an integral end bit. Inside the housing there is a bearing mounted wherein the end bit is fixed. The end bits has axial and radial channels the latter enabling product pickup and delivery into the former.
 Screw extruder / 2338442
Screw extruder incorporates a cylindrical pressing casing with a main head arranged to translate relative to the pressing casing, a main head torque measuring device, a loading device coupled with the pressing casing and a pressing screw with the mixer and the screw drive. The said mixer represents a non-conducting material cylindrical casing with the a conducting shell arranged on its inner surface and a cylindrical head arranged to move relative to the mixer cylindrical casing and the conducting working member coupled with the mixer drive. The extruder comprises also a mixer cylindrical head torque measuring device, a flour and water proportioners. Note here that the said mixer is coupled with the loading device, while the conducting working member and conducting shell are connected to the industrial-frequency current supply source.
 Method for extruding material, for example, starch containing material, and extrusion device / 2337826
Extrusion device consists of case in which there is endless screw and extrusion head with channels. The extrusion head is in form of two concentrically arranged bushes. One of them has channels and is rigidly joined to the endless screw with provision for in-out traversing. The other bushing is rigidly fixed to the case. The coupling diameter or the bushings does not exceed the diameter of the endless screw by more than 1.5 mm. The extrusion head can have a die hole and at least, one driftpin. The endless screw which turns inside the case acts on the material and presses it through channels in the extrusion head.
 Screw press / 2266205
Screw press comprises housing that receives screw and pressing unit made of cylindrical casing connected with the housing. The casing receives pressing head with conical and output cylindrical molding members for permitting rotation. The surface of the head is provided with arc-shaped passages which are mounted to define baffles between them. The cylindrical casing can be provided with longitudinal grooves arranged over periphery.
 Press-extruder / 2266821
The invention is pertaining to equipment for processing agricultural products by extrusion and may be used in the food-processing industry. The Press-extruder contains a body of the main drive unit with a loading hopper and a feeding device, a composite feed screw and a cylindrical body of a feed screw consisting of split components. In the place of coupling of the components of the feed screw body there are the ring-type grooves for rigid fixation in them of a ring with the internal chases directed at an angle to the axis of the ring. The ring has adjustable thickness and is made in the form of several rings and washers, the total thickness of which is equal to the width of the ring-type groove. The invention ensures enhanced efficiency and stability of the extrusion process at changing of the process technological characteristics and physical-mechanical properties of the processed materials.
 Method of cooking of the food stuff by extrusion / 2293024
The invention is pertaining to the method of cooking of the foodstuff by extrusion. The method provides for reprocessing of the first food stuff having the density from 75 up to 130 g/l in the first section of the extruder, then they reprocess the second food stuff having the density from 75 up to 130 g/l in the second section of then extruder and extrude these two food stuffs through one common or two separate outlet holes. The first and second food stuffs are reprocessed in the opposite directions and as the result of it the food stuffs are moving towards to each other using rotation of one or two augers. The first section has essentially reverse spiral or the reverse spirals, as compared with the second section. According to the method the first and second food stuffs are combined before the extrusion and after that they are extruded through the common outlet hole. The first and second food stuffs may be similar and each of them is reprocessed in the corresponding sections by the similar methods. The first and second food stuffs may be different and each of them is reprocessed in the corresponding section differently. As the result of it the method ensures reduction of friction and abrasion and also the undesirable efforts.
Method for extruding material, for example, starch containing material, and extrusion device / 2337826
Extrusion device consists of case in which there is endless screw and extrusion head with channels. The extrusion head is in form of two concentrically arranged bushes. One of them has channels and is rigidly joined to the endless screw with provision for in-out traversing. The other bushing is rigidly fixed to the case. The coupling diameter or the bushings does not exceed the diameter of the endless screw by more than 1.5 mm. The extrusion head can have a die hole and at least, one driftpin. The endless screw which turns inside the case acts on the material and presses it through channels in the extrusion head.
Screw extruder / 2338442
Screw extruder incorporates a cylindrical pressing casing with a main head arranged to translate relative to the pressing casing, a main head torque measuring device, a loading device coupled with the pressing casing and a pressing screw with the mixer and the screw drive. The said mixer represents a non-conducting material cylindrical casing with the a conducting shell arranged on its inner surface and a cylindrical head arranged to move relative to the mixer cylindrical casing and the conducting working member coupled with the mixer drive. The extruder comprises also a mixer cylindrical head torque measuring device, a flour and water proportioners. Note here that the said mixer is coupled with the loading device, while the conducting working member and conducting shell are connected to the industrial-frequency current supply source.
Extruder press / 2348531
Extruder press consists of a housing that accommodates a screw with an integral end bit. Inside the housing there is a bearing mounted wherein the end bit is fixed. The end bits has axial and radial channels the latter enabling product pickup and delivery into the former.
Method of producing of briquettes and installation for briquettes' manufacturing / 2364617
Invention relates to installation and method of producing of briquettes from wastes of vegetable raw materials in the form of sawdusts of husks, peels etc. used in the capacity of secondary raw materials or for burning in domestic and industrial fire chambers. Installation for manufacturing of combustive briquettes, contains case with loading tray, outfitted by agitator, taper chamber, located by converge end to exhaust port, drive compressing arrangement in the form of fixed lengthwise taper chamber of screw with decreased to the side of exhaust port diametre and discharging into exhaust port, outfitted by changeable moulding bush and thermal processing chamber, herewith it additionally contains division mechanism on measured section, installed at withdrawal from exhaust port, implemented in the form of limiter installed with ability of movement and position fixation on guide, fixed on outlet of exhaust port, thermal processing chamber is installed co-axial to exhaust port and taper chamber up to its middle part, herewith screw is implemented at a constant pitch and with changeable end, and agitator is implemented in the form of two specular located driving screws, fixed on walls of loading hopper with ability of blade rotation towards to each other and in the direction, perpendicular to axis of compressing device-screw. Also it is described method of producing of combustive briquettes with usage of this installation. Method includes feeding of vegetable raw materials with humidity 4-12% and breakup 2-10 mm, its compressing, following forming and division, herewith briquettes are additionally thermally treated, herewith formation is implemented continuously and simultaneously with thermal processing, implemented at 150-250°C, depending on type of raw materials, forming briquette of required section, achieved by changeable end of screw and changeable mould bush of exhaust port, after what it is implemented division for measuring sections.
Twin-screw extruder / 2371314
Invention is related to extrusion of materials and may be used in processing industries of agricultural complex. Extruder comprises body, two screws in the form of shafts with helical thread and bearing unit of screw shafts. Bearing unit includes race attached to body and internal bushes. Bushes are fixed on screw shafts with the possibility of axial and circumferential motions relative to race. Holes for pressed materials are available on bushes. Helical thread of shaft in each screw may be located at a distance to race, equal to 0.5 - 2.5 of screw radius. At the same time each shaft is arranged with a gradual reduction of diametre in direction of pressed material flow.
Extruder / 2417892
Invention relates to processing of plastic stock and may be used in food, animal feed and chemical industries. Proposed extruder comprises screw arranged in housing, made integral with adapter. Bearing is secured on said adapter. Housing accommodates extrusion die accommodating adapter with bearing to axially fix screw axle. Die inner surface has channels to withdraw products from extrusion zone arranged along generating lines. Said channels are overlapped by said bearing. Extrusion die may displace relative to housing and bearing to adjust outlet sections of said channels.
Press extruder for manufacture of peat blocks / 2433046
Invention relates to press extruders and may be used to manufacture briquettes for fuel, and also peat seeding containers. The press extruder comprises a frame (1) with brackets (3) for suspension on a power facility, an extruder (3) mounted on it with a hopper (4) to load process material, an auger (5) with an alternating pitch of turns, a drive mechanism with a safety coupling and a reducer. At the same time on an output shaft of the auger there is an end auger (6) with a stem (7) installed in a conical attachment (8). At the same time on the conical attachment at the end there is a gate (12) hingedly fixed, which covers the output hole of the conical attachment with its plane. At the same time the stem of the end auger does not reach the plane of the gate in the covered condition of the output hole of the conical attachment by value A, equal to the thickness of the bottom of the peat block (13). At the same time the gate has a drive with a device for adjustment of the rotation cycle.
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FIELD: process engineering. SUBSTANCE: invention relates to machine building and can be used in extruders intended for production of compacted fuel from, mainly, the mix of peat with sawdust. Screw extruder comprises bed to support intake hopper and housing with matrix channel, carrier and screw. Carrier has cylindrical insert with splitters arranged radially. Said carrier can feature conical shape with taper angle of 6 degrees. This allows making the cylindrical briquettes with cylindrical bore with radial channels. EFFECT: unlimited length and high density. 2 cl, 2 dwg
The invention relates to mechanical engineering and can be used in the construction of screw presses designed to obtain a molded fuel by pressing from waste wood and timber (sawdust, shavings, shredded, etc). Known screw press-extruder containing a frame on which are mounted a hopper and casing with a matrix channel, the mouthpiece and screw mounted rotatably. The auger is provided with a tapered guide and working areas, the latter of which consists of sealing and molding parts. The sealing part is made with coils of variable profile and decrease in the direction of the moldable mass depth of the grooves [RF Patent №2203806, 10.05.2003,, B. I. No. 13 part II]. The disadvantage of this construction is to obtain a briquette density with insufficient specific area. The technical result of the present invention is the possibility of obtaining briquettes cylindrical shape having an internal cylindrical bore with radial channels in the direction of the periphery. This cake can be of unlimited length and having a high density. The task is solved in that a screw press extruder for forming briquettes from sawdust, containing a frame 1 on which are mounted a hopper 2 and case 3 with m trionum channel, the mouthpiece 4 and the screw 5 mounted rotatably, and the mouthpiece 4 is made with a liner cylindrical form 7 with a fixed radial dividers 8, allows to obtain a high-density briquettes having a large specific surface area, and the mouthpiece - 4 may be conical with a cone angle of 6°. In figure 1 there is shown a screw press-extruder for forming briquettes from sawdust, figure 2 shows a conical mouthpiece with the liner cylindrical shape. Screw press-extruder for forming briquettes from sawdust comprises a frame 1 on which are mounted a hopper 2 and a housing 3 with a matrix channel, the mouthpiece 4 and the screw 5 mounted rotatably. The screw 5 is made conical with the pilot and working areas. The working area consists of sealing and molding parts. The sealing part is made with coils of variable profile and decrease in the direction of the moldable mass depth of the grooves. The mouthpiece 4 is a forming cylinder, within which is located the liner cylindrical form 7 with a fixed radial dividers 8. Moreover, the use of the conical shape of the mouthpiece allows you to create greater value developed pressure during pressing. The amount of taper of the mouthpiece 6° borrowed from the device settings offered is in patent RU 2203806 C2. The device operates as follows. The turns of the screw 5, condensing sawdust push them through the mouthpiece 4. As a result, the liner cylindrical form 7 with a radial dividers 8 forms in the briquette cylindrical bore and having radial channels. In the case of the use of the mouthpiece conical shape with a cone angle of 6°, the magnitude of the seal is increased by the value of the coefficient of friction, due to the reduction in size of the outlet. Thus, the proposed design compared to the prototype, allows to obtain a high-density briquettes having a large specific surface area. 1. Screw press-extruder for forming briquettes from sawdust, containing a frame on which are mounted a hopper and casing with a matrix channel, the mouthpiece and screw mounted for rotation, characterized in that the mouthpiece is made with located inside of the cylindrical liner, which is fixed radially spaced dividers. 2. Press-extruder according to claim 1, characterized in that the mouthpiece has a conical shape with a cone angle of 6°.
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