A biomass fuel pelletizing device

Abstract

The present invention belongs to the technical field of biomass fuel, specifically a biomass fuel granulating device, including a body, a rear installation box is fixedly provided on the rear end face of the body, a lifting cylinder is fixedly provided on the upper end face of the rear installation box, the upper end face of the lifting cylinder can be telescopically moved and is fixedly provided with a lifting top frame, a granulating top box is fixedly provided on the upper end face of the body, and a granulating top block that can move up and down is provided on the upper side of the granulating top box. The present invention moves the extruding inner rod downward and enters into the granulating extrusion cavity and the granulating bottom hole, squeezes the residual biomass fuel in the lower wall of the granulating extrusion cavity and the granulating bottom hole out of the granulating bottom hole, and completes the granulation work under the repeated cutting of the cutting motor, so that the present invention has a high utilization rate of the biomass fuel, and there will be no residual fuel powder particles in the equipment after processing, and no blockage will occur.

Description

Technical Field

[0001] The invention relates to the technical field of biomass fuel, in particular to a biomass fuel granulation device. Background Art

[0002] Biomass fuel refers to the combustion of biomass materials, typically agricultural and forestry waste (such as straw, sawdust, bagasse, and rice husks). This fuel differs from fossil fuels primarily because direct combustion of biomass is highly polluting and is used only in rural stoves and not in cities. However, biomass fuel ranks fourth in global energy consumption, after coal, oil, and natural gas, and plays a crucial role in the overall energy system. It is also renewable, clean, and pollution-free.

[0003] In the process of biomass fuel production, in order to improve combustion efficiency, the fuel is often crushed and then granulated. However, when ordinary granulation equipment is granulating, fuel often remains inside the extrusion hole of the equipment, causing the extrusion hole to be blocked, resulting in abnormal problems of the equipment. Summary of the Invention

[0004] The object of the present invention is to provide a biomass fuel pelletizing device to overcome the above-mentioned defects in the prior art.

[0005] According to the present invention, a biomass fuel granulation device includes a body, a rear mounting box is fixedly provided on the rear end face of the body, a lifting cylinder is fixedly provided on the upper end face of the rear mounting box, the upper end face of the lifting cylinder can be telescopically moved and is fixedly provided with a lifting top frame, a granulation top box is fixedly provided on the upper end face of the body, and a granulation top block that can move up and down is provided on the upper side of the granulation top box;

[0006] A granulation bottom cavity is provided in the machine body, a granulation extrusion cavity with an opening upward is provided in the granulation top box, a plurality of granulation bottom holes which are evenly distributed and connected up and down are provided on the lower wall of the granulation top box, a granulation knife is rotatably provided on the lower end surface of the granulation top box, an extrusion top cavity is provided in the granulation top block, a plurality of granulation top holes which are connected up and down are provided on the lower wall of the extrusion top cavity, the lower wall of the granulation top hole has the same aperture size and position as the granulation bottom hole, and an extrusion inner rod which can move up and down is provided in the granulation top hole.

[0007] As a further technical solution of the present invention, a top rotating shaft is rotatably provided on the right side of the lower end face of the lifting top frame, the lower end face of the top rotating shaft is fixedly connected to the upper end face of the granulating top block, the upper end face of the lifting top frame is fixedly provided with a rotating motor, and the upper end face of the top rotating shaft is dynamically connected to the rotating motor.

[0008] As a further technical solution of the present invention, a cutting motor is fixedly provided on the rear end face of the machine body, and two tool holder connecting blocks are fixedly provided on the front and rear sides of the upper end face of the granulation knife. The tool holder connecting blocks are rotatably connected to the front and rear walls of the granulation bottom cavity, and the rear end face of the tool holder connecting block on the rear side is dynamically connected to the cutting motor.

[0009] As a further technical solution of the present invention, a top fixing frame is fixedly provided in the extrusion top cavity, a rebound cavity is connected to the upper wall of the granulation top hole, a return spring is fixedly connected between the lower wall of the rebound cavity and the upper end face of the extrusion inner rod, and the upper end face of the extrusion inner rod abuts against the lower end face of the top fixing frame.

[0010] As a further technical solution of the present invention, an air inlet is fixedly provided on the upper wall of the extrusion top cavity, the upper end face of the air inlet is connected to the external air pump, the lower end face of the air inlet is provided with an air inlet cavity connected up and down, and a stop valve is rotatably provided in the air inlet cavity, and the stop valve can control the on and off of the air inlet cavity.

[0011] As a further technical solution of the present invention, a drying box is fixedly provided on the front wall of the granulation bottom chamber, a desiccant is placed in the drying box, and a plurality of ventilation holes are provided on the front wall of the drying box to dry the granulation bottom chamber.

[0012] As a further technical solution of the present invention, a fan cavity is provided on the front wall of the granulation bottom cavity, a fan filter plate is fixedly provided on the rear wall of the fan cavity, the fan filter plate can play a filtering role, a drying fan is rotated in the fan cavity, a fan motor is fixedly provided on the front end surface of the machine body, and the front end surface of the drying fan is dynamically connected to the fan motor.

[0013] As a further technical solution of the present invention, a control panel is fixedly provided on the left end face of the rear installation box, and the control panel can control the start and stop of all motors and air pumps of the present invention. A discharge door is rotatably provided on the front wall of the granulation bottom chamber.

[0014] The beneficial effects of the present invention are:

[0015] 1. When the granulation work of the present invention is carried out to the end, the granulation top block no longer descends, and biomass fuel still exists in the granulation bottom hole. At this time, the air inlet is connected to the external air pump. As the external air pump injects air into the air inlet, the air pressure in the top fixed frame is continuously increased, thereby driving the extrusion inner rod to move downward and enter the granulation extrusion cavity and the granulation bottom hole, squeezing the residual biomass fuel on the lower wall of the granulation extrusion cavity and the granulation bottom hole out of the granulation bottom hole, and completing the granulation work under repeated cutting of the cutting motor, so that the present invention has a high utilization rate of biomass fuel, and there will be no residual fuel powder particles in the equipment after processing, and no blockage will occur.

[0016] 2. The pelletizing knife of the present invention reciprocates back and forth, cutting the fuel when the biofuel is squeezed out of the pelletizing bottom hole, thereby completing the fuel pelletizing work. Compared with the general pelletizing equipment that relies on the arc design of the lower end face of the pelletizing top block and the lower end face of the pelletizing extrusion chamber, it can effectively increase the pressing area, thereby improving the work efficiency of the pelletizing work.

[0017] 3. The present invention blows the air in the granulation bottom chamber to one side of the drying box through a drying fan. The desiccant placed in the drying box can absorb the moisture contained in the air in the granulation bottom chamber, so that the granulation bottom chamber is always in a relatively dry environment, thereby preventing the biomass fuel from disintegrating again due to moisture after granulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic front view of the appearance of the present invention;

[0019] Figure 2 This is a schematic top view of the appearance of the present invention;

[0020] Figure 3 This is a schematic rear view of the appearance of the present invention;

[0021] Figure 4 This is a schematic left side view of the appearance of the present invention;

[0022] Figure 5 This is a schematic diagram of the overall structure of a biomass fuel pelletizing device of the present invention;

[0023] Figure 6 This invention Figure 5 A partial enlarged schematic diagram of the middle rebound cavity 36.

[0024] In the picture:

[0025] 11. Machine body; 12. Granulating top box; 13. Discharge door; 14. Fan motor; 15. Fan filter plate; 16. Rear installation box; 17. Control panel; 18. Lifting cylinder; 19. Lifting top frame; 20. Rotating motor; 21. Top rotating shaft; 22. Granulating top block; 23. Granulating top hole; 24. Air inlet; 25. Cutting motor; 26. Drying box; 27. Granulating bottom cavity; 28. Granulating extrusion cavity; 29. ​​Granulating knife; 30. Granulating bottom hole; 31. Fan cavity; 32. Drying fan; 33. Knife holder connecting block; 34. Extrusion top cavity; 35. Top fixing frame; 36. Rebound cavity; 37. Extrusion inner rod; 38. Reset spring; 39. Intake cavity; 40. On / off valve. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention:

[0027] Refer to the attached Figures 1-6 According to an embodiment of the present invention, a biomass fuel granulation device includes a body 11, a rear mounting box 16 is fixedly provided on the rear end surface of the body 11, a lifting cylinder 18 is fixedly provided on the upper end surface of the rear mounting box 16, the upper end surface of the lifting cylinder 18 can be telescopically moved and is fixedly provided with a lifting top frame 19, a granulation top box 12 is fixedly provided on the upper end surface of the body 11, and a granulation top block 22 that can move up and down is provided on the upper side of the granulation top box 12;

[0028] A granulation bottom cavity 27 is provided in the machine body 11, a granulation extrusion cavity 28 with an upward opening is provided in the granulation top box 12, a plurality of granulation bottom holes 30 which are evenly distributed and connected up and down are provided on the lower wall of the granulation top box 12, a granulation knife 29 is rotatably provided on the lower end surface of the granulation top box 12, an extrusion top cavity 34 is provided in the granulation top block 22, a plurality of granulation top holes 23 which are connected up and down are provided on the lower wall of the extrusion top cavity 34, the lower wall of the granulation top hole 23 has the same aperture size and position as the granulation bottom hole 30, and an extrusion inner rod 37 which can move up and down is provided in the granulation top hole 23.

[0029] Among them, a top rotating shaft 21 is rotatably provided on the right side of the lower end face of the lifting top frame 19, and the lower end face of the top rotating shaft 21 is fixedly connected to the upper end face of the granulating top block 22. A rotating motor 20 is fixedly provided on the upper end face of the lifting top frame 19, and the upper end face of the top rotating shaft 21 is dynamically connected to the rotating motor 20. When the rotating motor 20 is started, it drives the top rotating shaft 21 to rotate, thereby driving the granulating top block 22 to rotate slowly.

[0030] Among them, a cutting motor 25 is fixedly provided on the rear end face of the machine body 11, and two tool holder connecting blocks 33 are fixedly provided on the front and rear sides of the upper end face of the granulation knife 29. The tool holder connecting block 33 is rotatably connected to the front and rear walls of the granulation bottom cavity 27. The rear end face of the tool holder connecting block 33 on the rear side is dynamically connected to the cutting motor 25. When the cutting motor 25 is started, it drives the tool holder connecting block 33 to rotate, thereby driving the granulation knife 29 to rotate around the lower end face of the granulation top box 12.

[0031] Among them, a top fixing frame 35 is fixed in the extrusion top cavity 34, and a rebound cavity 36 is connected to the upper wall of the granulation top hole 23. A return spring 38 is fixedly connected between the lower wall of the rebound cavity 36 and the upper end surface of the extrusion inner rod 37, and the upper end surface of the extrusion inner rod 37 abuts against the lower end surface of the top fixing frame 35.

[0032] Among them, an air inlet 24 is fixedly provided on the upper wall of the extrusion top cavity 34, the upper end face of the air inlet 24 is connected to the external air pump, and the lower end face of the air inlet 24 is provided with an air inlet cavity 39 connected up and down, and a stop valve 40 is rotatably provided in the air inlet cavity 39, and the stop valve 40 can control the on and off of the air inlet cavity 39.

[0033] A drying box 26 is fixedly provided on the front wall of the granulation bottom chamber 27 . A desiccant is placed in the drying box 26 . A plurality of ventilation holes are provided on the front wall of the drying box 26 , which can dry the granulation bottom chamber 27 .

[0034] Among them, a fan chamber 31 is provided on the front wall of the granulation bottom chamber 27, and a fan filter plate 15 is fixedly provided on the rear wall of the fan chamber 31. The fan filter plate 15 can play a filtering role. A drying fan 32 is rotated in the fan chamber 31, and a fan motor 14 is fixed on the front end face of the body 11. The front end face of the drying fan 32 is poweredly connected to the fan motor 14. When the fan motor 14 is started, it drives the drying fan 32 to rotate.

[0035] Among them, a control panel 17 is fixedly provided on the left end face of the rear installation box 16, and the control panel 17 can control the start and stop of all motors and air pumps of the present invention. A discharge door 13 is rotatably provided on the front wall of the granulation bottom cavity 27.

[0036] The biomass fuel granulation device of the present invention has the following working process:

[0037] Before starting, the granulation top block 22 is moved to the uppermost position, the biofuel powder is placed in the granulation extrusion chamber 28, and the desiccant is placed in the drying box 26, and then the granulation work can begin.

[0038] When granulation is in progress, the lifting cylinder 18 can be started to drive the lifting top frame 19 to move downward, thereby driving the top rotating shaft 21 and the granulation top block 22 to move downward, so that the biofuel and air in the granulation extrusion chamber 28 are squeezed and granulated downward through the granulation bottom hole 30. At the same time, the cutting motor 25 is started back and forth in forward and reverse directions to drive the knife holder connecting block 33 to rotate, thereby driving the granulation knife 29 to rotate back and forth, cutting the fuel when the biofuel is squeezed out of the granulation bottom hole 30, thereby completing the fuel granulation work. Compared with general granulation equipment relying on the arc design of the lower end face of the granulation top block 22 and the lower end face of the granulation extrusion chamber 28, it can effectively increase the pressing area, thereby improving the working efficiency of the granulation work.

[0039] During the granulation process, as the granulation top block 22 continuously moves downward in the granulation extrusion chamber 28, the extrusion inner rod 37 will be affected by the air pressure and move upward until it is blocked by the lower end surface of the top fixing frame 35, and the extrusion inner rod 37 is fixed in the rebound chamber 36. When the granulation process is completed, the granulation top block 22 no longer descends, and there is still biomass fuel in the granulation bottom hole 30. At this time, the air inlet 24 is connected to the external air pump. As the external air pump injects air into the air inlet 24, the air pressure in the top fixing frame 35 continues to increase, thereby driving the extrusion inner rod 37 to move downward and enter the granulation extrusion chamber 28. In the pressure chamber 28 and the granulation bottom hole 30, the residual biomass fuel in the lower wall of the granulation extrusion chamber 28 and the granulation bottom hole 30 is squeezed out of the granulation bottom hole 30, and the granulation work is completed under the repeated cutting of the cutting motor 25. After the granulation work is completed, the rotating motor 20 is started to drive the top rotating shaft 21 to rotate, thereby driving the granulation top block 22 to rotate slowly, so that the biomass fuel remaining on the lower wall of the granulation extrusion chamber 28 can be discharged through the granulation bottom hole 30, so that the present invention has a higher utilization rate of biomass fuel, and there will be no residual fuel powder particles in the equipment after processing, and no blockage will occur.

[0040] While the granulation process is in progress, the fan motor 14 is started to drive the drying fan 32 to rotate, thereby driving the air in the granulation bottom chamber 27 to be blown to the side of the drying box 26. The desiccant placed in the drying box 26 can absorb the moisture contained in the air in the granulation bottom chamber 27, so that the granulation bottom chamber 27 is always in a relatively dry environment, thereby preventing the biomass fuel from disintegrating again due to moisture after granulation.

[0041] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A biomass fuel pelletizing device, comprising a body (11), characterized in that: A rear installation box (16) is fixedly provided on the rear end surface of the machine body (11), a lifting cylinder (18) is fixedly provided on the upper end surface of the rear installation box (16), the upper end surface of the lifting cylinder (18) is telescopically movable and is fixedly provided with a lifting top frame (19), a granulation top box (12) is fixedly provided on the upper end surface of the machine body (11), and a granulation top block (22) that can move up and down is provided on the upper side of the granulation top box (12); The machine body (11) is provided with a granulation bottom cavity (27), the granulation top box (12) is provided with a granulation extrusion cavity (28) opening upward, the lower wall of the granulation top box (12) is provided with a plurality of granulation bottom holes (30) evenly distributed and connected vertically, the lower end surface of the granulation top box (12) is provided with a granulation knife (29) rotatably, the granulation top block (22) is provided with an extrusion top cavity (34), the lower wall of the extrusion top cavity (34) is provided with a plurality of granulation top holes (23) connected vertically, and the granulation top hole (23) is provided with an extrusion inner rod (37) capable of moving up and down.

2. A biomass fuel granulation device according to claim 1, characterized in that: A top rotating shaft (21) is rotatably provided on the right side of the lower end surface of the lifting top frame (19), the lower end surface of the top rotating shaft (21) is fixedly connected to the upper end surface of the granulating top block (22), a rotating motor (20) is fixedly provided on the upper end surface of the lifting top frame (19), and the upper end surface of the top rotating shaft (21) is dynamically connected to the rotating motor (20).

3. A biomass fuel granulation device according to claim 1, characterized in that: A cutting motor (25) is fixedly provided on the rear end face of the machine body (11); two knife holder connecting blocks (33) are fixedly provided on the front and rear sides of the upper end face of the granulating knife (29); the knife holder connecting blocks (33) are rotatably connected to the front and rear walls of the granulating bottom cavity (27); and the rear end face of the knife holder connecting block (33) on the rear side is dynamically connected to the cutting motor (25).

4. A biomass fuel granulation device according to claim 1, characterized in that: A top fixing frame (35) is fixedly provided in the extrusion top cavity (34), a rebound cavity (36) is communicated with the upper wall of the granulation top hole (23), and a return spring (38) is fixedly connected between the lower wall of the rebound cavity (36) and the upper end surface of the extrusion inner rod (37).

5. The biomass fuel granulation device according to claim 1, characterized in that: An air inlet (24) is fixedly provided on the upper wall of the extrusion top cavity (34), the upper end surface of the air inlet (24) is connected to an external air pump, and the lower end surface of the air inlet (24) is provided with an air inlet cavity (39) connected up and down, and a stop valve (40) is rotatably provided in the air inlet cavity (39).

6. A biomass fuel granulation device according to claim 1, characterized in that: A drying box (26) is fixedly provided on the front wall of the granulation bottom chamber (27).

7. A biomass fuel granulation device according to claim 1, characterized in that: A fan chamber (31) is provided on the front wall of the granulation bottom chamber (27), a fan filter plate (15) is fixedly provided on the rear wall of the fan chamber (31), a drying fan (32) is rotatably provided in the fan chamber (31), a fan motor (14) is fixedly provided on the front end surface of the machine body (11), and the front end surface of the drying fan (32) is dynamically connected to the fan motor (14).

8. The biomass fuel granulation device according to claim 1, characterized in that: A control panel (17) is fixedly provided on the left end surface of the rear installation box (16), and a discharge door (13) is rotatably provided on the front wall of the granulation bottom chamber (27).

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