CN105729867A - Biomass particle forming mechanism with spiral groove press rollers - Google Patents
Biomass particle forming mechanism with spiral groove press rollers Download PDFInfo
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- CN105729867A CN105729867A CN201610198359.3A CN201610198359A CN105729867A CN 105729867 A CN105729867 A CN 105729867A CN 201610198359 A CN201610198359 A CN 201610198359A CN 105729867 A CN105729867 A CN 105729867A
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- pressure roller
- forming cavity
- ring mould
- cover plate
- screw
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/20—Roller-and-ring machines, i.e. with roller disposed within a ring and co-operating with the inner surface of the ring
- B30B11/201—Roller-and-ring machines, i.e. with roller disposed within a ring and co-operating with the inner surface of the ring for extruding material
- B30B11/207—Feed means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/20—Roller-and-ring machines, i.e. with roller disposed within a ring and co-operating with the inner surface of the ring
- B30B11/201—Roller-and-ring machines, i.e. with roller disposed within a ring and co-operating with the inner surface of the ring for extruding material
- B30B11/208—Roller constructions; Mounting of the rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/30—Feeding material to presses
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a biomass particle forming mechanism with spiral groove press rollers. Press roller assemblies are vertically mounted in a forming cavity, a wedge-shaped compression area is formed by the outer work surfaces of the press rollers and the inner surface of a circular mould, and press roller shaft sets, mounting holes in an upper cover plate and mounting holes in a lower cover plate are matched to form an eccentric structure. The press roller assemblies are connected through clearance adjusting and locating assemblies. Outer cylindrical surfaces extruded by press roller shafts and the circular mould are provided with a plurality of spiral grooves distributed in the axial direction, and the structure that the grooves and convex edges are evenly and alternately distributed in the extrusion acting faces of the press rollers in the circumferential direction is formed. According to the biomass particle forming mechanism, an effective material compression cavity is enlarged, the compression efficiency is improved, and running is stable during work. The uniformity of materials distributed in the axial direction of the press rollers is improved. The service life is prolonged, the mould-roller clearance is adjusted conveniently, adjusting precision is high, the uniformity of the materials distributed in the axial direction of the press rollers is improved, and the compression process is stable.
Description
Technical field
The present invention relates to biomass grain forming apparatus field, particularly relate to a kind of biomass granule forming machine structure with spiral grooves pressure roller.
Background technology
Biomass granule fuel is formed through mechanical compaction by wood flour, agricultural crop straw etc., existing ring mold pressing roll-type granule-forming machine, utilizes the relative motion of ring mould and pressure roller, by entering, the material of wedge shape compressional zone between die is extruded, there is ratio of briquetting height, can quantity-produced advantage, use extensively.But die gap concordance is poor, and owing to roller bearing is at material forming intracavity, its physical dimension is restricted, and when extruding force is excessive, pressure roller shaft intensity is not enough, and bearing life is very short, and maintenance of equipment and maintenance time are long.Simultaneously, due to feeding limited space between ring mould and pressure roller, when loose biomass material enters the forming cavity in ring mould, near one end of charging aperture, solid accumulation easily occurs, this uneven material distribution can cause the vexed car of complete machine, will also result in ring mould and pressure roller weares and teares inequality vertically, affect the service life of profiled member.For die formula granule-forming machine, gap between ring mold pressing roll is very big on grain forming impact, adjustment for both realizations gap length, pressure roller shaft makes centering type more, namely pressure roller shaft two axial ends is coaxial, but axles different from the middle shaft part supporting pressure roller, pressure roller shell is arranged in pressure roller shaft by bearing, due to pressure roller shell intracavity size limitation and structural requirement, bearing works in pressure roller shell, and pressure roller is directly in the forming cavity of full biomass material, dust easily enters in bearing working chamber, cause bearing stuck, the force of rolling friction that pressure roller shell rotates around pressure roller shaft sharply increases, occur that pressure roller skids or stuck phenomenon, make material can not enter compressional zone smoothly.It addition, for increasing the pressure roller ability to bring along to material, pressure roller shell generally processes and the groove of axis parallel direction, the groove on pressure roller shell alternately contacts with ring mould inner surface with fin, shock loading easily occurs, also can affect the service life of die.
Summary of the invention
Being to provide a kind of biomass granule forming machine structure with spiral grooves pressure roller, the vertical charging of biomass, compact integral structure, effective material compression chamber increases, smooth running during work the order of the present invention.Pressure roller can bear bigger extruding force, improves the material uniformity along pressure roller axial distribution.Die gap is easy to adjust, and Adjustment precision is high, and pressure roller location is reliable；The sliding bearing that pressure roller two axial ends coordinates works in outside forming cavity, increases the service life, and reduces and manufactures and maintenance cost, is effectively improved compression efficiency；Improving material along the axial distribution consistency degree of pressure roller, uniform force, compression process is steady.
The technical solution adopted in the present invention is: include charging aperture, forming cavity upper cover plate, forming cavity lower cover, ring mould, press roll component, discharge bucket, it is characterized in that: forming cavity is closed formed by ring mould inner surface and forming cavity upper cover plate, forming cavity lower cover, least one set press roll component is vertically installed in forming cavity, pressure roller work outer surface forms wedge shape constricted zone with ring mould inner surface, and pressure roller shaft group coordinates with the installing hole of forming cavity upper cover plate, forming cavity lower cover for eccentric structure；Upper and lower pressure roller axle bed connecting plate two ends are connected on upper and lower two pressure roller axle beds by attachment screw；
Charging aperture top is arranged has the tripper of multiple material outlet, and each material outlet of tripper connects into each charging aperture on die cavity upper cover plate, the wedge shape material constricted zone upper end that its position is arranged on pressure roller and ring mould is formed；Ring mould both ends of the surface are held respectively through outer ring shaft with gear, spring bearing is connected to forming cavity upper cover plate and on forming cavity lower cover, three coaxially assembles and turns round around vertical shaft；The outer ring that outer ring shaft with gear is held arranges the external gear engaged with motive power Tooth Profile.
Adjust positioning component by gap between above-mentioned each press roll component to be connected, connected mode is: arrange two connecting holes on each pressure roller axle bed, between two connecting holes close on each adjacent pressure roller axle bed, joint gap adjusts positioning component, and between two connecting holes on one group of relative pressure roller axle bed, joint gap adjusts positioning component；Gap adjusts positioning component and arranges the transport screw adjustment screw with connecting hole and the adjustment screw of the reverse acting spiral with connecting hole, the installing hole that transport screw regulates on screw and reverse acting spiral adjustment screw connects the connecting hole on two pressure roller axle beds respectively by pin, and the opposite end regulating screw and reverse acting spiral adjustment screw at transport screw connects bidirectional helical adjusting nut.
On the outer cylinder surface that above-mentioned pressure roller shaft and ring mould extrude, process axially distributed a plurality of spiral grooves, constitute pressure roller squeezing action face and form groove and the uniform alternatively distributed structure of fin at circumferencial direction；When pressure roller shaft rotates by the direction identical with spiral grooves rotation direction on it, spiral grooves is conducive to guiding material from charging aperture proximate, makes material pressure roller axially distributed uniformly；The fin formed on pressure roller is identical with the die throat diameter on ring mould at the cross-sectional width being perpendicular to its axis, and two adjacent spiral ridge circumference spacing and adjacent nib also equal in the spacing of ring mould circumference, pressure roller fin can stably enter the material crush zone formed with ring mould, advantageously reduce die contact noise, improve compression stressing conditions, it is possible to ensure that fin covers the upper nib corresponding with on ring mould.
The method have the advantages that the vertical charging of biomass, compact integral structure, effective material compression chamber increases, and is effectively improved compression efficiency；Smooth running during work.Pressure roller can bear bigger extruding force, improves the material uniformity along pressure roller axial distribution.The sliding bearing that pressure roller two axial ends coordinates works in outside forming cavity, increases the service life, and reduces and manufactures and maintenance cost；Die gap is easy to adjust, and Adjustment precision is high, and pressure roller location is reliable；Pressure roller with spiral grooves is easy to guide, improves the material uniformity along pressure roller axial distribution, and uniform force, compression process is steady.
Accompanying drawing explanation
Fig. 1 is the vertical biomass granule fuel fuel forming machine assembling axis of no-feathering mapping of broken section.
Component serial number in figure: tripper 1, discharge bucket 2, lower bearing bracket 3, ring mould 4, upper spider 5, press roll component 6, charging aperture 7, forming cavity upper cover plate 8, outer ring shaft with gear holds 10, forming cavity lower cover 11, splicing plate 12.
Fig. 2 is that material compression chamber axle surveys half sectional view (remove gap and adjust positioning component state).
Component serial number in figure: lower bearing bracket 3, ring mould 4, press roll component 6, charging aperture 7, forming cavity upper cover plate 8, peripheral board 9, upper spring bearing 13, outer ring shaft with gear holds 10, forming cavity lower cover 11.
Fig. 3 is press roll component schematic diagram.
Component serial number in figure: pressure roller shaft 6-1, pressure roller axle bed 6-2, seal lid 6-3, sliding bearing 6-4, pressure roller axle bed connecting plate 6-5.
Fig. 4 is the end view (removing close capped configuration) of pressure roller axle bed 6-2.
Fig. 5 is that pressure roller work surface is with spiral grooves schematic diagram.
Fig. 6 is the cross section Local map with spiral-slotted press roller.
Fig. 7 is that pressure roller contacts expansion schematic diagram with the ring mould surface of revolution.
Fig. 8 is that press roll component connects and network for location.
Component serial number in figure: 6 press roll components, 15 gaps adjust positioning component.
Fig. 9 is that gap adjusts positioning component schematic diagram.
Component serial number in figure: transport screw regulates screw 15-1, adjusting nut 15-2, and reverse acting spiral regulates screw 15-3.
Detailed description of the invention
See Fig. 1,2, concrete structure is as follows: the present invention arranges upper spider 5 and lower bearing bracket 3, and upper and lower end at upper spider 5 is fixing respectively is assembled into pattern upper cover plate 8, shaping mould lower cover 11；Compression chamber is set between shaping mould upper cover plate 8 and shaping mould lower cover 11, compression chamber be held 10 by forming cavity upper cover plate 8, upper spring bearing 13, ring mould 4, outer ring shaft with gear, closing chamber that the coaxial element such as shaping mould lower cover 11 is constituted.The inner ring of upper spring bearing 13 and forming cavity upper cover plate 8 are bolted connection, and the outer ring of upper spring bearing 13 is connected also by bolt with the upper surface of ring mould 4；The gear ring end face that the lower surface of ring mould 4 holds 10 by connecting bolt with outer ring shaft with gear is connected, and outer ring shaft with gear is held the inner ring of 10 and is connected with forming cavity lower cover 11.The inner ring of upper and lower two set bearings determines the rotary vertical shaft centrage of two-end bearing support by being connected with shaping mould upper cover plate 8 and forming cavity lower cover 11, so that the rotary components that outer ring shaft with gear holds the gear ring of 10 and the outer ring composition of ring mould 4 and upper spring bearing 13 can turn round around vertical shaft；Outer ring shaft with gear holds the external toothing that 10 settings are engaged with motive power Tooth Profile.The periphery of ring mould 4 radially has multiple rows of nib.Fixing peripheral board 9 and discharge bucket 2 are set in the periphery of splicing plate 12.
See Fig. 2,3, forming cavity upper cover plate 8 and forming cavity lower cover 11 all have four press roll component installing holes being uniformly distributed along the circumference, the axle head of installing of each press roll component 6 upper and lower end coordinates assembling with the installing hole on forming cavity upper cover plate 8, forming cavity lower cover 11, therefore the pressure roller shaft 6-1 of press roll component 6 is also both-end supporting construction；Pressure roller shaft 6-1 in press roll component 6 is the d-axis that each axle head is concentric, and its extruding shaft part and ring mould inner surface constitute wedge shape material extruding space.
Seeing Fig. 5, the axle head end face boring F of pressure roller, lubricating oil can be entered by this hole, meanwhile, for ensureing that lubricating oil forms oil film well into bearing internal circular surfaces, has bored two and has drawn hydraulic fluid port F1, be connected with oil-feed centre bore on the face of cylinder of axle head.With on ring mould inner surface contact width, pressure roller outer round surface has processed the spiral grooves being distributed uniformly and circumferentially, and is fin (see figure 6) between groove.For improving compression efficiency and improving die stress；As shown in Figure 7, when die acting surface is launched respectively, D is that ring mould inner surface launches schematic diagram, the width that fin on roller surface is perpendicular to axis direction is equal with die throat diameter, sufficiently large to ensure the compression stress that material is squeezed out nib, in Fig. 4, rectangle frame C is effective contact area signal that actual pressure roller can promote that in nib, material advances, on ring mould 1, nib is arranged on an internal surface with equilateral triangle form, uniform vertically at territory, rectangular contact face inner press roll fin and groove, when pressure roller rotates, bulk material near charging aperture (on the upside of pressure roller) is driven and moves downward, improve the material uniformity along pressure roller axial distribution.Avoid the fin that general straight trough pressure roller is likely to occur and be fully pressed against the phenomenon without territory, nib face, without the phenomenon that the into and out compressional zone of straight line fin impact type occurs.The fin cross section of spiral-slotted press roller can for the trapezoidal or approximate convex shape shown in Fig. 6, to improve fin mechanical strength.
Pressure roller shaft 6-1 is at both sides axle head and bearing fit, and bearing oil can be incorporated into via the centre bore F on pressure roller shaft 6-1 and in the sliding contact surface territory of axle journal, advantageously reduce the coefficient of friction in this territory, face；Two side bearings separate with the material in compression chamber, are also beneficial to sealing and the heat radiation of bearing.
See Fig. 2,4, pressure roller 6-1 two axial ends in press roll component 6 is provided with sliding bearing 6-4, upper and lower two sliding bearing 6-4 are separately mounted in the endoporus of two ends pressure roller axle bed 6-2, and the two ends of pressure roller 6-1 are assembled in forming cavity upper cover plate 8 and forming cavity lower plate 11 by upper and lower two sliding bearing 6-4 and upper and lower two pressure roller axle bed 6-2；The outer end of pressure roller axle bed 6-2 assembles and seals lid 6-3.
See Fig. 4, 9, pressure roller shaft group and forming cavity upper cover plate 8, the installing hole of forming cavity lower cover 11 coordinates for eccentric structure: pressure roller axle bed 6-2 endoporus and its external cylindrical surface exist eccentric distance e, adjust positioning component 15 by gap between each pressure roller axle bed 6-2 to be connected, connected mode is: arrange two connecting hole B on each pressure roller axle bed 6-2, between two connecting hole B close on each adjacent pressure roller axle bed, joint gap adjusts positioning component 15, between two connecting hole B on one group of relative pressure roller axle bed, joint gap adjusts positioning component 15 simultaneously, constitute and formed triangular structure (shown in Fig. 8) by three-room suite gap adjustment positioning component.
See Fig. 9, gap adjusts the structure that positioning component 15 adopts, namely transport screw with installing hole B-1 is set and regulates screw 15-1 and the adjustment screw 15-3 of the reverse acting spiral with installing hole B-1, the installing hole B-1 that transport screw regulates on screw 15-1 and reverse acting spiral adjustment screw 15-3 connects the connecting hole B on two pressure roller axle beds respectively by pin, and the opposite end regulating screw 15-1 and reverse acting spiral adjustment screw 15-3 at transport screw connects bidirectional helical adjusting nut 15-2.As rotating adjusting nut 15-2, transport screw regulates screw 15-1 and reversely regulates screw 15-3 precession simultaneously or back-out, the axial length that gap adjusts positioning component 15 is changed, thus promoting pressure roller axle bed 6-2 to rotate, it is achieved the adjustment in gap between ring mould 4 and pressure roller 6-1.
Die gap length can individually be adjusted often organizing press roll component 6, it is also possible to four groups of press roll components 6 carry out linkage simultaneously and adjusts.nullWhen individually adjusting，Gap adjusts positioning component 15 take off，Rotate the eccentric pressure roller axle bed 6-2 being arranged on upper cover plate in Fig. 2，Then owing to pressure roller axle bed connecting plate 6-5 and upper and lower pressure roller axle bed 6-2 is coupled to each other，Lower end pressure roller axle bed also can synchronous axial system，The gap of the relative ring mould of pressure roller axle bed is thus driven to change，All adjust to prepsetting gap until often group press roll component，It is adjusted to the distance between press roll component mating holes by adjusting latch assembly 15 axial length，By gap, adjacent press roll component is adjusted positioning component between two couple，The press roll component simultaneously one of which being separated by adjusts positioning component by gap and couples，Triangle fixed structure，Structure is reliable，Eccentric thrust suffered by pressure roller is opposing forces，Reduce the active force to forming cavity upper cover plate 8 and forming cavity lower plate 11，Make plate that excessive deformation not occur，Improve the positional precision between each installed part；Ensure that ring mould and nip are constant behind press roll component location.
When linkage adjusts, coupled between two by press roll component 15 by adjusting positioning component by gap shown in Fig. 8, turn adjusting nut 15-2, then the length change of gap adjustment positioning component 15 can promote pressure roller group to rotate, it is achieved adjusts while many group die gaps.Seeing Fig. 8, press roll component one of which being separated by adjusts positioning component by gap and couples, and triangle fixed structure ensures that ring mould and nip are constant behind press roll component location.
See Fig. 4,5, upper and lower two pressure roller axle bed 6-2 arrange connection flange, connect and flange arranges connecting hole A, upper and lower pressure roller axle bed connecting plate 6-5 two ends connect the connecting hole A of upper and lower two pressure roller axle bed 6-2 by attachment screw, when rotating one end pressure roller axle bed, upper and lower two set axle bed synchronous rotaries can be made, it is ensured that the gap length uniformity of pressure roller and ring intermode.
See Fig. 1,2, shaping mould upper cover plate 8 arranges multiple charging aperture 7, the top of charging aperture 7 arranges the tripper 1 with multiple material outlet, each material outlet of tripper 1 can be inserted into each charging aperture 7 on forming cavity upper cover plate, the wedge shape material constricted zone upper end that its position is arranged on pressure roller and ring mould is formed；So that material is fed in compression chamber from many places.
Operation principle: loose biomass material (wood flour, straw powder material etc.) natural flow under gravity or driven by feeder, discharges from each independent discharging opening of tripper 1 lower end, makes material be fed in compression chamber from many places.Dissipating material to drive via the press roll component rotated and enter after wedge shape material compression chamber, volume density improves rapidly, and the material in tapered region then through the extruding force effect between ring mold pressing roll, is granular fuel by consolidation after the nib outputed on ring mould 4.Granular fuel after molding rotates with ring mould and is moved out by the material continuous extrusion of follow-up entrance, falls on splicing plate 12, discharges through discharge bucket 2.
Claims (1)
1. the biomass granule forming machine structure with spiral grooves pressure roller, including charging aperture, forming cavity upper cover plate, forming cavity lower cover, ring mould, press roll component, discharge bucket, it is characterized in that: forming cavity is closed formed by ring mould inner surface and forming cavity upper cover plate, forming cavity lower cover, least one set press roll component is vertically installed in forming cavity, pressure roller work outer surface forms wedge shape constricted zone with ring mould inner surface, and pressure roller shaft group coordinates with the installing hole of forming cavity upper cover plate, forming cavity lower cover for eccentric structure；Upper and lower pressure roller axle bed connecting plate two ends are connected on upper and lower two pressure roller axle beds by attachment screw；
Charging aperture top is arranged has the tripper of multiple material outlet, and each material outlet of tripper connects into each charging aperture on die cavity upper cover plate, the wedge shape material constricted zone upper end that its position is arranged on pressure roller and ring mould is formed；Ring mould both ends of the surface are held respectively through outer ring shaft with gear, spring bearing is connected to forming cavity upper cover plate and on forming cavity lower cover, three coaxially assembles and turns round around vertical shaft；The outer ring that outer ring shaft with gear is held arranges the external gear engaged with motive power Tooth Profile；
Adjust positioning component by gap between above-mentioned each press roll component to be connected, connected mode is: arrange two connecting holes on each pressure roller axle bed, between two connecting holes close on each adjacent pressure roller axle bed, joint gap adjusts positioning component, and between two connecting holes on one group of relative pressure roller axle bed, joint gap adjusts positioning component；Gap adjusts positioning component and arranges the transport screw adjustment screw with connecting hole and the adjustment screw of the reverse acting spiral with connecting hole, the installing hole that transport screw regulates on screw and reverse acting spiral adjustment screw connects the connecting hole on two pressure roller axle beds respectively by pin, and the opposite end regulating screw and reverse acting spiral adjustment screw at transport screw connects bidirectional helical adjusting nut；
On the outer cylinder surface that pressure roller shaft and ring mould extrude, axially distributed a plurality of spiral grooves is set, constitutes pressure roller squeezing action face and form groove and the uniform alternatively distributed structure of fin at circumferencial direction；The fin formed on pressure roller is identical with the die throat diameter on ring mould at the cross-sectional width being perpendicular to its axis, and two adjacent spiral ridge circumference spacing are equal in the spacing of ring mould circumference with adjacent nib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610198359.3A CN105729867B (en) | 2016-04-01 | 2016-04-01 | Biomass granule forming machine structure with spiral grooves pressure roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610198359.3A CN105729867B (en) | 2016-04-01 | 2016-04-01 | Biomass granule forming machine structure with spiral grooves pressure roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105729867A true CN105729867A (en) | 2016-07-06 |
| CN105729867B CN105729867B (en) | 2017-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610198359.3A Expired - Fee Related CN105729867B (en) | 2016-04-01 | 2016-04-01 | Biomass granule forming machine structure with spiral grooves pressure roller |
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| CN (1) | CN105729867B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106861555A (en) * | 2017-02-28 | 2017-06-20 | 嘉兴正森新能源科技有限公司 | A kind of pressing mechanism |
| CN112776408A (en) * | 2020-12-02 | 2021-05-11 | 江苏大学 | Vertical double-layer ring die three-pressing roller rice hull briquetting device |
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| WO2008063347A2 (en) * | 2006-11-10 | 2008-05-29 | Leonard Reggie | Pellet extrusion device |
| CN201677529U (en) * | 2010-04-30 | 2010-12-22 | 北京汉坤科技有限公司 | Planetary gear type inner and outer ring mold pressing mechanism for compressing and forming straw particles |
| CN102367009A (en) * | 2011-11-29 | 2012-03-07 | 徐州燃控科技生物能源有限公司 | Stepless regulation device for gap between compression roller and ring die |
| CN103566826A (en) * | 2013-11-22 | 2014-02-12 | 北京林业大学 | Plunger type press roller and biomass circular mold particle formation mechanism |
| CN105172189A (en) * | 2015-08-12 | 2015-12-23 | 郑春山 | Forming mechanism for pressing plant fibers into large particles |
| CN205467507U (en) * | 2016-04-01 | 2016-08-17 | 沈阳农业大学 | Living beings particle forming machine constructs with spiral slot compression roller |
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2016
- 2016-04-01 CN CN201610198359.3A patent/CN105729867B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008063347A2 (en) * | 2006-11-10 | 2008-05-29 | Leonard Reggie | Pellet extrusion device |
| CN201677529U (en) * | 2010-04-30 | 2010-12-22 | 北京汉坤科技有限公司 | Planetary gear type inner and outer ring mold pressing mechanism for compressing and forming straw particles |
| CN102367009A (en) * | 2011-11-29 | 2012-03-07 | 徐州燃控科技生物能源有限公司 | Stepless regulation device for gap between compression roller and ring die |
| CN103566826A (en) * | 2013-11-22 | 2014-02-12 | 北京林业大学 | Plunger type press roller and biomass circular mold particle formation mechanism |
| CN105172189A (en) * | 2015-08-12 | 2015-12-23 | 郑春山 | Forming mechanism for pressing plant fibers into large particles |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106861555A (en) * | 2017-02-28 | 2017-06-20 | 嘉兴正森新能源科技有限公司 | A kind of pressing mechanism |
| CN112776408A (en) * | 2020-12-02 | 2021-05-11 | 江苏大学 | Vertical double-layer ring die three-pressing roller rice hull briquetting device |
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| Publication number | Publication date |
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| CN105729867B (en) | 2017-11-24 |
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Granted publication date: 20171124 Termination date: 20180401 |