阅读说明：本技术 一种生物质固体燃料致密成型设备的挤压机构 (Extrusion mechanism of biomass solid fuel compact forming equipment ) 是由 马樾 于 2021-07-09 设计创作，主要内容包括：本发明公开了一种生物质固体燃料致密成型设备的挤压机构,包括致密成型设备主体,所述致密成型设备主体的内部下端设置有挤压进料口,所述挤压进料口的下方设置有挤压舱,所述挤压舱的上端设置有进料舱门,所述进料舱门的一端固定连接有水平设置的第一液压伸缩杆,所述第一液压伸缩杆的另一端固定安装于致密成型设备主体的内壁上,所述挤压舱的下端设置有出料舱门,所述挤压舱的内部一侧固定安装有竖直设置的定挤压块,所述定挤压块的内侧面均匀开设有若干第一半球形凹槽,所述定挤压块的外侧面设置有抽空机构,所述挤压舱的内部另一侧设置有往复挤压机构。本发明挤压出来的生物制燃料块质地紧密、内部不含空气。(The invention discloses an extrusion mechanism of biomass solid fuel compact forming equipment, which comprises a compact forming equipment main body, the lower end of the interior of the compact forming equipment main body is provided with an extrusion feed inlet, an extrusion chamber is arranged below the extrusion feed inlet, a feeding cabin door is arranged at the upper end of the extrusion cabin, one end of the feeding cabin door is fixedly connected with a first hydraulic telescopic rod which is horizontally arranged, the other end of the first hydraulic telescopic rod is fixedly arranged on the inner wall of the main body of the compact forming equipment, the lower end of the extrusion cabin is provided with a discharge cabin door, one side inside the extrusion cabin is fixedly provided with a fixed extrusion block which is vertically arranged, a plurality of first hemispherical grooves are uniformly formed in the inner side face of the fixed extrusion block, the outer side face of the fixed extrusion block is provided with a vacuumizing mechanism, and the other side inside the extrusion chamber is provided with a reciprocating extrusion mechanism. The extruded bio-fuel block has compact texture and no air inside.)

1. The extrusion mechanism of the biomass solid fuel compact forming equipment comprises a compact forming equipment main body (1) and is characterized in that an extrusion feeding hole (2) is formed in the lower end of the inside of the compact forming equipment main body (1), an extrusion chamber (3) is arranged below the extrusion feeding hole (2), a feeding chamber door (4) is arranged at the upper end of the extrusion chamber (3), a first hydraulic telescopic rod (5) horizontally arranged is fixedly connected to one end of the feeding chamber door (4), the other end of the first hydraulic telescopic rod (5) is fixedly installed on the inner wall of the compact forming equipment main body (1), a discharging chamber door (6) is arranged at the lower end of the extrusion chamber (3), a fixed extrusion block (7) vertically arranged is fixedly installed on one side of the inside of the extrusion chamber (3), and a plurality of first hemispherical grooves (8) are uniformly formed in the inner side of the fixed extrusion block (7), the outer side surface of the fixed extrusion block (7) is provided with an evacuation mechanism (9), and the other side in the extrusion chamber (3) is provided with a reciprocating extrusion mechanism (10).

2. The extrusion mechanism of the biomass solid fuel dense forming equipment according to claim 1, wherein the connection positions of the two ends of the bottom of the extrusion feed inlet (2) and the feed cabin door (4) are provided with support tables (11).

3. The extrusion mechanism of the biomass solid fuel compacting and forming device according to claim 2, wherein one end of the discharging cabin door (6) is rotatably hinged to the lower surface of the compacting and forming device main body (1), one end of the lower surface of the discharging cabin door (6) is fixedly provided with a support plate (12), one side of the support plate (12) is rotatably hinged to a second hydraulic telescopic rod (13), and the other end of the second hydraulic telescopic rod (13) is rotatably hinged to the lower surface of the compacting and forming device main body (1).

4. The extrusion mechanism of the biomass solid fuel compacting and forming device according to claim 3, wherein the evacuation mechanism (9) comprises an evacuation cavity (14) fixedly installed on the outer side surface of the fixed extrusion block (7), the evacuation cavity (14) is communicated with a vacuum pump (15) installed at the bottom end inside the compacting and forming device body (1), the other side of the vacuum pump (15) is provided with an air outlet (16) penetrating through the side wall of the compacting and forming device body (1), an evacuation hole (17) is communicated between the evacuation cavity (14) and a plurality of first hemispherical grooves (8) formed in the inner side surface of the fixed extrusion block (7), a compacting filter screen (18) is arranged at the inner end of the evacuation hole (17), and the inner surface of the compacting filter screen (18) is in an arc shape with the same radius as the first hemispherical grooves (8).

5. The extrusion mechanism of the biomass solid fuel dense forming equipment according to claim 4, it is characterized in that the reciprocating extrusion mechanism (10) comprises a third hydraulic telescopic rod (19) which is fixedly arranged on the inner side wall of one side of the main body (1) of the compact forming equipment along the horizontal direction, the outer end of the third hydraulic telescopic rod (19) is fixedly connected with a mounting plate (20), a rotating shaft (21) is rotatably arranged in the middle of the mounting plate (20), a driven belt pulley (22) is fixedly sleeved on the outer surface of one end of the rotating shaft (21), the outer surface of the other end of the rotating shaft (21) is fixedly sleeved with a rotating disc (23), one end of the outer side surface of the turntable (23) is rotatably connected with a supporting rod (24), the other end of the supporting rod (24) is rotationally connected with a movable extrusion block (25), and a plurality of second hemispherical grooves (26) are uniformly formed in the side surface of the movable extrusion block (25) facing the fixed extrusion block (7).

6. The extrusion mechanism of the biomass solid fuel dense forming equipment as claimed in claim 5, wherein the driven pulley (22) is connected with a driving pulley (28) through a transmission belt (27), and the driving pulley (28) is arranged on an output shaft of a servo motor (29) fixedly arranged on the side surface of the mounting plate (20).

7. The extrusion mechanism of the biomass solid fuel dense forming equipment as claimed in claim 6, wherein a ball bearing (30) is arranged at the rotary connection part of the support rod (24) and the rotary table (23) and the movable extrusion block (25).

8. The extrusion mechanism of the biomass solid fuel dense forming equipment as claimed in claim 7, wherein the first hemispherical groove (8) on the fixed extrusion block (7) and the second hemispherical groove (26) on the movable extrusion block (25) are symmetrically arranged.

9. The extrusion mechanism of the biomass solid fuel dense forming equipment according to claim 8, wherein a movable extrusion block sliding groove (31) is arranged between one side of the bottom of the extrusion feed inlet (2) and the lower wall of the dense forming equipment main body (1), and the movable extrusion block (25) is arranged in the movable extrusion block sliding groove (31) in a sealing and sliding manner.

Technical Field

The invention relates to the technical field of biomass solid fuel processing, in particular to an extrusion mechanism of biomass solid fuel compact forming equipment.

Background

The biomass solid fuel is a clean low-carbon renewable resource which is formed by extrusion molding by taking agricultural and forestry residues as raw materials.

The biomass solid fuel compact forming equipment is equipment for carrying out processes of drying, crushing and the like on biomass raw materials and then carrying out extrusion forming on the biomass raw materials. The extrusion mechanism of the existing biomass solid fuel compact forming equipment generally adopts a press block driven by a hydraulic rod to extrude and form biomass raw materials, and the extrusion mechanism driven by the hydraulic rod has larger volume and is inconvenient to use; in addition, the biomass fuel block extruded by the existing equipment is not compact enough in texture, and the inside of the biomass fuel block contains air; in addition, the surface of the biomass fuel piece extruded by the existing device is a plane, and the situation of tight accumulation can occur between the biomass fuel pieces during combustion, so that inconvenient air enters between the biomass fuel pieces, and the phenomenon of insufficient combustion of the biomass fuel piece can be caused.

Based on the above, the invention designs an extrusion mechanism of biomass solid fuel compact forming equipment, so as to solve the above problems.

Disclosure of Invention

The invention aims to provide an extrusion mechanism of biomass solid fuel compact forming equipment, which aims to solve the problems that the extrusion mechanism of the existing biomass solid fuel compact forming equipment in the background art generally adopts a pressing block driven by a hydraulic rod to extrude a biomass raw material, and the extrusion mechanism is large in volume and inconvenient to use in a hydraulic rod driving mode; in addition, the biomass fuel block extruded by the existing equipment is not compact enough in texture, and the inside of the biomass fuel block contains air; in addition, the surface of the biomass fuel piece extruded by the existing device is a plane, and the situation of tight accumulation can occur between the biomass fuel pieces during combustion, so that inconvenient air enters the space between the biomass fuel pieces, and the problem of insufficient combustion of the biomass fuel piece can be caused.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a living beings solid fuel fine and close former's extrusion mechanism, includes fine and close former main part, the inside lower extreme of fine and close former main part is provided with the extrusion feed inlet, the below of extrusion feed inlet is provided with the extrusion cabin, the upper end of extrusion cabin is provided with the feed cabin door, the one end fixed connection of feed cabin door has the first hydraulic telescoping rod that the level set up, first hydraulic telescoping rod's other end fixed mounting is on the inner wall of fine and close former main part, the lower extreme of extrusion cabin is provided with ejection of compact cabin door, the inside one side fixed mounting of extrusion cabin has the fixed extrusion piece of vertical setting, a plurality of first hemisphere recesses have evenly been seted up to the medial surface of deciding the extrusion piece, the lateral surface of deciding the extrusion piece is provided with the mechanism of managing to find time, the inside opposite side of extrusion cabin is provided with reciprocal extrusion mechanism.

As a further scheme of the invention, supporting tables are arranged at the connecting positions of the two ends of the bottom of the extrusion feeding port and the feeding cabin door.

As a further scheme of the invention, one end of the discharge cabin door is rotatably hinged to the lower surface of the main body of the compact forming equipment, one end of the lower surface of the discharge cabin door is fixedly provided with a support plate, one side of the support plate is rotatably hinged with a second hydraulic telescopic rod, and the other end of the second hydraulic telescopic rod is rotatably hinged to the lower surface of the main body of the compact forming equipment.

As a further scheme of the invention, the evacuation mechanism comprises an evacuation cavity fixedly mounted on the outer side surface of the fixed extrusion block, the evacuation cavity is communicated with a vacuum pump mounted at the bottom end inside the main body of the compact forming equipment, the other side of the vacuum pump is provided with an air outlet penetrating through the side wall of the main body of the compact forming equipment, evacuation holes are communicated between the evacuation cavity and a plurality of first hemispherical grooves formed in the inner side surface of the fixed extrusion block, compact filter screens are arranged at the inner ends of the evacuation holes, and the inner surfaces of the compact filter screens are all arc-shaped with the same radius as that of the first hemispherical grooves.

As a further scheme of the invention, the reciprocating extrusion mechanism comprises a third hydraulic telescopic rod fixedly mounted on the inner side wall of one side of the main body of the compact forming equipment along the horizontal direction, the outer end of the third hydraulic telescopic rod is fixedly connected with a mounting plate, a rotating shaft is rotatably mounted in the middle of the mounting plate, a driven belt pulley is fixedly sleeved on the outer surface of one end of the rotating shaft, a rotating disc is fixedly sleeved on the outer surface of the other end of the rotating shaft, one end of the outer side surface of the rotating disc is rotatably connected with a supporting rod, the other end of the supporting rod is rotatably connected with a movable extrusion block, and a plurality of second hemispherical grooves are uniformly formed in the side surface of the movable extrusion block facing the fixed extrusion block.

As a further scheme of the invention, the driven belt pulley is connected with a driving belt pulley through a transmission belt, and the driving belt pulley is arranged on an output shaft of a servo motor fixedly arranged on the side surface of the mounting plate.

As a further scheme of the invention, a ball bearing is arranged at the rotary connection part of the support rod, the rotary table and the movable extrusion block.

As a further scheme of the invention, the first hemispherical groove on the fixed extrusion block and the second hemispherical groove on the movable extrusion block are symmetrically arranged.

As a further scheme of the invention, a movable extrusion block sliding groove is arranged between one side of the bottom of the extrusion feeding port and the lower wall of the compact forming equipment main body, and the movable extrusion block is arranged in the movable extrusion block sliding groove in a sealing and sliding manner.

Compared with the prior art, the invention has the beneficial effects that:

(1) biomass particle powder crushed by a main body of the compact forming equipment falls into an extrusion chamber from an extrusion feed inlet, a reciprocating extrusion mechanism is matched with a fixed extrusion block to extrude the biomass particle powder into blocks, a feed chamber door and a discharge chamber door of the extrusion chamber are closed during extrusion, and an evacuation mechanism arranged on the outer side surface of the fixed extrusion block vacuumizes the extrusion chamber, so that the extruded biological fuel block is compact in texture and does not contain air inside;

(2) the vacuum pump of the evacuation mechanism can pump out air in the evacuation cavity and the extrusion cabin communicated through the air pumping hole, so that air holes in the biomass fuel block can be prevented when the biomass fuel block is extruded, and the extruded biomass fuel block is more compact in texture; the arrangement of the compact filter screen can prevent biomass fuel particles from entering the air suction hole and the evacuation cavity, and meanwhile, the inner surface of the compact filter screen is in an arc shape with the same radius as the first hemispherical groove, so that the shape of the surface of the extruded biological fuel cannot be influenced;

(3) the driven belt pulley of the reciprocating extrusion mechanism rotates under the driving of the servo motor, so that the rotary table is driven to rotate, the rotary table drives the extrusion block to move left and right in a reciprocating manner through the supporting rod, and the specific movement principle is as follows: when the rotary hinged part of the turntable and the supporting rod rotates to the position right below, the supporting rod is in a horizontal state, the movable extrusion block can be pushed rightwards to the maximum stroke position, when the rotary hinged part of the turntable and the supporting rod rotates to the position right above, the supporting rod is in a maximum inclined state, the movable extrusion block can be pulled leftwards to the maximum stroke position, and the movable extrusion block can reciprocate leftwards and rightwards along with the continuous rotation of the turntable, so that the aim of extruding the biomass fuel to enable the biomass fuel to be formed compactly is fulfilled; in addition, the left and right positions of the mounting plate are adjusted through the extension and contraction of the third hydraulic telescopic rod, the maximum rightward stroke of the movable extrusion block can be adjusted, and therefore the extrusion degree is adjusted;

(4) the first hemispherical groove on the fixed extrusion block and the second hemispherical groove on the movable extrusion block can enable two side surfaces of the extruded biomass fuel block to be provided with a plurality of hemispherical bulges, the structural design can enable the biomass fuel block to be in a certain overhead state during combustion, tight stacking conditions cannot occur between the biomass fuel blocks, certain air can exist in the biomass fuel block, the air can conveniently enter the biomass fuel block, and the biomass fuel block is enabled to be combusted more fully and has higher thermal efficiency;

(5) the sealing sliding of the movable extrusion block in the sliding groove of the movable extrusion block ensures the moving track of the movable extrusion block and can also ensure the sealing property in the extrusion cabin during extrusion; the ejection of compact hatch door is the downward upset open type structure, the ejection of compact of the biomass fuel piece of being convenient for, the inside sealed of the crowded ballast of being convenient for simultaneously to the work of the mechanism of conveniently managing to find time, the flexible of second hydraulic telescoping rod can realize opening and shutting of ejection of compact hatch door.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is an external structural schematic diagram of an extrusion mechanism of a biomass solid fuel dense forming device according to the invention;

FIG. 2 is a schematic diagram of the internal structure of an extrusion mechanism of a biomass solid fuel dense forming device according to the invention;

FIG. 3 is a schematic structural diagram of a discharge port door of an extrusion mechanism of a biomass solid fuel dense forming device according to the invention;

FIG. 4 is a schematic structural diagram of an evacuation mechanism of an extrusion mechanism of a biomass solid fuel dense forming device according to the invention;

FIG. 5 is a side view of a fixed extrusion block structure of an extrusion mechanism of a biomass solid fuel dense forming device according to the invention;

fig. 6 is a schematic structural diagram of a reciprocating extrusion mechanism of the biomass solid fuel dense forming equipment according to the invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. compacting and forming the equipment main body; 2. extruding the feed inlet; 3. a pressing cabin; 4. a feed bin door; 5. a first hydraulic telescopic rod; 6. a discharge hatch door; 7. fixing an extrusion block; 8. a first hemispherical recess; 9. an evacuation mechanism; 10. a reciprocating extrusion mechanism; 11. a support table; 12. a support plate; 13. a second hydraulic telescopic rod; 14. drawing the cavity; 15. a vacuum pump; 16. an air outlet; 17. an air exhaust hole; 18. compacting a filter screen; 19. a third hydraulic telescopic rod; 20. mounting a plate; 21. a rotating shaft; 22. a driven pulley; 23. a turntable; 24. a support bar; 25. moving the extrusion block; 26. a second hemispherical recess; 27. a drive belt; 28. a drive pulley; 29. a servo motor; 30. a ball bearing; 31. a movable extrusion block chute.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1-2, an extrusion mechanism of a biomass solid fuel compact forming device comprises a compact forming device main body 1, an extrusion feed port 2 is arranged at the lower end of the interior of the compact forming device main body 1, an extrusion chamber 3 is arranged below the extrusion feed port 2, a feed chamber door 4 is arranged at the upper end of the extrusion chamber 3, a first hydraulic telescopic rod 5 horizontally arranged is fixedly connected to one end of the feed chamber door 4, the other end of the first hydraulic telescopic rod 5 is fixedly mounted on the inner wall of the compact forming device main body 1, a discharge chamber door 6 is arranged at the lower end of the extrusion chamber 3, a fixed extrusion block 7 vertically arranged is fixedly mounted at one side of the interior of the extrusion chamber 3, a plurality of first hemispherical grooves 8 are uniformly formed in the inner side surface of the fixed extrusion block 7, and an evacuation mechanism 9 is arranged on the outer side surface of the fixed extrusion block 7, the other side of the inside of the extruding chamber 3 is provided with a reciprocating extruding mechanism 10.

The biomass particle powder after the fine and close former main part 1 is smashed falls into extrusion cabin 3 by extrusion feed inlet 2 in, extrusion block 7 is decided in the cooperation of reciprocal extrusion mechanism 10 and is extruded biomass particle powder to be cubic, the feeding hatch door 4 and the ejection of compact hatch door 6 of extrusion cabin 3 are closed during the extrusion, the mechanism 9 of managing to find time that extrusion block 7 lateral surface set up simultaneously carries out the evacuation operation to extruding cabin 3 in to make the biological system fuel piece texture that extrudes out inseparable, inside does not contain the air.

Referring to fig. 2, support tables 11 are disposed at the connection positions of the two ends of the bottom of the extrusion feed port 2 and the feed port door 4, the support tables 11 are disposed to support the feed port door 4 from the two ends thereof, and the feed port door 4 can perform a sufficient limiting function from above when extruding biomass fuel blocks.

Referring to fig. 3, one end of the discharge hatch 6 is rotatably hinged to the lower surface of the tight forming equipment main body 1, one end of the lower surface of the discharge hatch 6 is fixedly provided with a support plate 12, one side of the support plate 12 is rotatably hinged with a second hydraulic telescopic rod 13, and the other end of the second hydraulic telescopic rod 13 is rotatably hinged to the lower surface of the tight forming equipment main body 1; ejection of compact hatch door 6 opens the formula structure for overturning downwards, the ejection of compact of the biomass fuel piece of being convenient for, the inside sealed of the crowded ballast 3 of being convenient for simultaneously to conveniently manage to empty the work of mechanism 9, the flexible of second hydraulic telescoping rod 13 can realize opening and shutting of ejection of compact hatch door 6.

Referring to fig. 4-5, the evacuation mechanism 9 includes an evacuation cavity 14 fixedly installed on the outer side surface of the fixed extrusion block 7, the evacuation cavity 14 is communicated with a vacuum pump 15 installed at the bottom end inside the compact forming apparatus main body 1, an air outlet 16 penetrating through the side wall of the compact forming apparatus main body 1 is arranged on the other side of the vacuum pump 15, evacuation holes 17 are communicated between the evacuation cavity 14 and a plurality of first hemispherical grooves 8 formed in the inner side surface of the fixed extrusion block 7, compact filter screens 18 are arranged at the inner ends of the evacuation holes 17, and the inner surfaces of the compact filter screens 18 are all arc-shaped with the same radius as that of the first hemispherical grooves 8.

The vacuum pump 15 of the evacuation mechanism 9 works, namely air in the evacuation cavity 14 and the extrusion cabin 3 communicated through the air exhaust hole 17 can be exhausted, air holes in the biomass fuel block can be prevented when the biomass fuel block is extruded, and the extruded biomass fuel block is more compact in texture; the arrangement of the compact screen 18 can prevent biomass fuel particles from entering the pumping hole 17 and the pumping cavity 14, and the inner surface of the compact screen 18 is arc-shaped with the same radius as the first hemispherical groove 8, so that the shape of the surface of the extruded biological fuel is not influenced.

The second embodiment:

referring to fig. 6, the reciprocating extrusion mechanism 10 includes a third hydraulic telescopic rod 19 fixedly installed on an inner side wall of one side of the main body 1 of the compacting and forming equipment along a horizontal direction, an outer end of the third hydraulic telescopic rod 19 is fixedly connected with an installation plate 20, a rotating shaft 21 is rotatably installed at a middle position of the installation plate 20, a driven belt pulley 22 is fixedly sleeved on an outer surface of one end of the rotating shaft 21, a rotating disc 23 is fixedly sleeved on an outer surface of the other end of the rotating shaft 21, one end of an outer side surface of the rotating disc 23 is rotatably connected with a supporting rod 24, the other end of the supporting rod 24 is rotatably connected with a movable extrusion block 25, and a plurality of second hemispherical grooves 26 are uniformly formed in the side surface of the movable extrusion block 25 facing the fixed extrusion block 7.

Driven pulley 22 of reciprocating extrusion mechanism 10 rotates under servo motor 29's drive to drive carousel 23 and rotate, carousel 23 passes through bracing piece 24 and drives extrusion piece 25 reciprocating motion about, and the concrete principle of moving is: when the rotary hinged part of the rotary table 23 and the support rod 24 rotates to the right below, the support rod 24 is in a horizontal state, the movable extrusion block 25 can be pushed to the right to the maximum stroke position, when the rotary hinged part of the rotary table 23 and the support rod 24 rotates to the right above, the support rod 24 is in a maximum inclined state, the movable extrusion block 25 can be pulled to the left to the maximum stroke position, and the movable extrusion block 25 can reciprocate left and right along with the continuous rotation of the rotary table 23, so that the aim of extruding the biomass fuel to enable the biomass fuel to be densely formed is fulfilled; in addition, the left and right positions of the mounting plate 20 are adjusted through the extension and contraction of the third hydraulic telescopic rod 19, the maximum rightward stroke of the movable extrusion block 25 can be adjusted, and therefore the extrusion degree is adjusted.

Referring to fig. 6, the driven pulley 22 is connected to a driving pulley 28 through a transmission belt 27, and the driving pulley 28 is disposed on an output shaft of a servo motor 29 fixedly installed on a side surface of the mounting plate 20; the driving pulley 28 mounted on the servo motor 29 drives the driven pulley 22 to rotate through the driving belt 27 to power the reciprocating extrusion mechanism 10.

Referring to fig. 6, a ball bearing 30 is disposed at the rotational connection position of the support rod 24, the turntable 23 and the movable extrusion block 25; the ball bearing 30 is arranged to enable the joints of the two ends of the supporting rod 24 and the rotating disc 23 and the movable extrusion block 25 to rotate smoothly, so that the movable extrusion block 25 can reciprocate left and right under the driving of the supporting rod 24.

Referring to fig. 2, the first hemispherical recess 8 of the fixed extrusion block 7 and the second hemispherical recess 26 of the movable extrusion block 25 are symmetrically disposed; the first hemispherical groove 8 on the fixed extrusion block 7 and the second hemispherical groove 26 on the movable extrusion block 25 can enable the two side faces of the extruded biomass fuel block to be provided with a plurality of hemispherical bulges, the design of the structure can enable the biomass fuel block to be in a certain overhead state during combustion, tight and stacked conditions cannot occur between the biomass fuel blocks, certain air can exist in the biomass fuel block, air can conveniently enter the biomass fuel block, the combustion of the biomass fuel block is ensured to be more sufficient, and the heat efficiency is higher.

Referring to fig. 2, a movable extrusion block sliding groove 31 is formed between one side of the bottom of the extrusion feed port 2 and the lower wall of the main body 1 of the dense forming equipment, and the movable extrusion block 25 is hermetically and slidably arranged in the movable extrusion block sliding groove 31; the sealing sliding of the movable extrusion blocks 25 in the movable extrusion block sliding grooves 31 not only ensures the moving track of the movable extrusion blocks 25, but also ensures the sealing performance in the extrusion chamber 3 during extrusion.

In actual use, biomass particle powder crushed by the main body 1 of the compact forming equipment falls into the extrusion cabin 3 through the extrusion feed port 2; the driven belt pulley 22 of the reciprocating extrusion mechanism 10 is driven by the servo motor 29 to rotate, so that the rotary table 23 is driven to rotate, when the rotary hinged position of the rotary table 23 and the support rod 24 is rotated to a position right below, the support rod 24 is in a horizontal state, the movable extrusion block 25 can be pushed rightwards to a maximum stroke position, and the biomass fuel particles in the extrusion cabin 3 can be extruded by matching with the fixed extrusion block 7, so that the purpose of extruding the biomass fuel to enable the biomass fuel to be formed compactly is achieved; in addition, the left and right positions of the mounting plate 20 are adjusted through the extension and contraction of the third hydraulic telescopic rod 19, so that the maximum rightward stroke of the movable extrusion block 25 can be adjusted, and the extrusion degree is adjusted; during extrusion, the feeding cabin door 4 and the discharging cabin door 6 of the extrusion cabin 3 are closed, and meanwhile, the evacuation mechanism 9 arranged on the outer side surface of the fixed extrusion block 7 carries out vacuum pumping operation on the interior of the extrusion cabin 3, so that the extruded biological fuel block has compact texture and does not contain air inside; decide the extrusion piece 7 and move first hemisphere recess 8 and the second hemisphere recess 26 that sets up respectively on the extrusion piece 25 opposite face and can all have a plurality of hemispheric archs with the both sides face of the biomass fuel piece that extrudes, the design of this structure can make the biomass fuel piece be in certain built on stilts state when burning, closely accumulational situation can not appear between the biomass fuel piece, make its inside entering that can have certain air and be convenient for the air, it is more abundant to ensure the burning of biomass fuel piece, the thermal efficiency is higher.

The extruded biomass fuel block has compact texture and no air inside, and the two side surfaces of the extruded biomass fuel block are provided with a plurality of hemispherical bulges, so that the biomass fuel block can be combusted fully.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.