Biomass gasification furnace

Abstract

The biomass gasification furnace comprises a gasification furnace body, a first filtering piece and a second filtering piece, a gas outlet frame is fixed to the bottom of the gasification furnace body in a penetrating mode, an ash discharging auger is horizontally fixed to the bottom face of the gasification furnace body in a communicating mode, and the first filtering piece is arranged at the end of the gas outlet frame in a communicating mode. The other end of the first filter piece is communicated with a second filter piece, the first filter piece comprises a filter box, one end of the filter box is communicated and fixed with an aluminum film frame, a plurality of filter screens are transversely and vertically fixed in the filter box, and the plurality of filter screens are of wedge-shaped structures; the problems that exhausted combustible gas can be exhausted together with biomass dust combusted by a substance gasification furnace, the contact area of the combustible gas and air is affected due to the existence of the biomass dust when the combustible gas is combusted in the later period, and combustion is insufficient are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of biomass gasification equipment, and more specifically, to a biomass gasifier. Background Art

[0002] Biomass gasification refers to the process of partial combustion of biomass to generate combustible gas, which is an efficient and clean biomass conversion method. The biomass raw material is fed into the gasifier, and in the gasifier, the biomass raw material undergoes incomplete combustion, and the generated combustible gas is used for combustion treatment.

[0003] There is a prior art with the publication number CN201793530U, titled "A Biomass Gasifier", which includes a furnace chamber; a grate is provided in the middle of the furnace chamber; a feeding and pushing mechanism is provided above the grate; a dust collection medium bin is provided below the grate; a filter and a circulation pump are provided outside the dust collection medium bin; the outlet of the dust collection medium bin is communicated with the inlet of the filter through a pipeline; the outlet of the filter is communicated with the inlet of the dust collection medium bin through the circulation pump. By using the feeding and pushing mechanism, the gasification rate of the material is stable. In addition, due to the adoption of the dust collection medium bin structure in the present utility model, the straw dust can be effectively retained in the furnace.

[0004] However, the gas outlet of the above-mentioned biomass gasifier is connected and arranged in the dust collection medium bin, and there is no dust filtering component at the gas outlet in the dust collection medium bin. The discharged combustible gas will carry the biomass dust burned by the biomass gasifier and be discharged together. During the subsequent combustion of the combustible gas, due to the existence of the biomass dust, the contact area between the combustible gas and the air is affected, resulting in incomplete combustion. Summary of the Utility Model

[0005] 1. Technical Problems to be Solved

[0006] Aiming at the problems existing in the prior art, the purpose of the present utility model is to provide a biomass gasifier, which overcomes the above-mentioned technical defects.

[0007] 2. Technical Solutions

[0008] To solve the above problems, the present utility model adopts the following technical solutions.

[0009] A biomass gasifier, comprising a gasifier body, a first filter element and a second filter element. A gas outlet frame is fixedly penetrated through the bottom of the gasifier body, and a dust discharge auger is horizontally communicated and fixed on the bottom surface of the gasifier body. The first filter element is communicatively arranged at the end of the gas outlet frame, and the other end of the first filter element is communicatively provided with a second filter element. The first filter element includes a filter box. One end of the filter box is communicatively fixed with an aluminum film frame, and a plurality of filter nets are horizontally and vertically fixed inside the filter box, and the plurality of filter nets adopt a wedge-shaped structure. The second filter element includes a filter cylinder. The filter cylinder is arranged on the side of the filter box away from the gasifier body, and a dust falling screw cylinder is communicatively fixed at the bottom end of the filter cylinder. A corrugated pipe is horizontally communicated and fixed on the dust falling screw cylinder, and the other end of the corrugated pipe is communicated on the end surface of the filter box away from the gasifier body. A hole cylinder is vertically fixed in the filter cylinder, and a cloth cylinder is fixed on the inner wall of the hole cylinder. A cloth scraping motor is vertically fixed on the top surface of the hole cylinder, and a scraping frame is vertically rotatably connected to the inner top surface of the hole cylinder. The top end of the scraping frame is fixed on the output end of the cloth scraping motor. A gas guide cylinder is communicatively fixed on the top surface of the filter cylinder.

[0010] Further, a plurality of dust falling through grooves are horizontally and vertically penetrated on the bottom surface of the filter box, and the plurality of dust falling through grooves correspond to the plurality of filter nets one by one. Chute plates are vertically fixed on both sides of the bottom surface of the filter box where the plurality of dust falling through grooves are located.

[0011] Further, an ash receiving box is horizontally arranged below the plurality of dust falling through grooves of the filter box, and the top surface of the ash receiving box is open. The ash receiving box is horizontally slidably assembled in the chute plates.

[0012] Further, a vibration motor is horizontally fixed on the top surface of the filter box, and a plurality of springs are vertically arranged on both sides of the filter box.

[0013] Further, an aluminum film frame is communicatively fixed on the end surface of the filter box close to the gasifier body, and the aluminum film frame is fixed at the end of the gas outlet frame.

[0014] Further, the gas outlet frame is fixedly connected to the end of the spring.

[0015] Further, a cloth cylinder is fixed on the inner wall of the hole cylinder, and a plug is threadedly assembled at the bottom end of the dust falling screw cylinder.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the advantages of the present utility model are as follows:

[0018] During use, biomass raw materials are added into the gasifier body. The combustible gas generated by burning the biomass raw materials is guided into the filter box through an aluminum film frame. The combustible gas sequentially passes through multiple internal filter meshes, and dust is filtered and removed by the multiple filter meshes. Then the combustible gas is guided into the filter cylinder through a corrugated pipe. The combustible gas passes upward through a cloth cylinder and a hole cylinder to filter and remove the dust therein. Then the combustible gas is introduced into the combustion chamber through a gas guide cylinder for combustion. Thus, the dust in the exported combustible gas passes through the first filter element and the second filter element, improving the cleanliness of the combustible gas and ensuring the combustibility and sufficient combustion of the combustible gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 is a schematic diagram of the structure of the whole of the present invention in a disassembled state;

[0021] Figure 3 is a schematic diagram of the structure of the first filter element in a disassembled state during the implementation of the present invention;

[0022] Figure 4 is a schematic diagram of the structure of the second filter element in a disassembled state during the implementation of the present invention;

[0023] Figure 5 is a schematic diagram of the structure of the gasifier body in a disassembled state during the implementation of the present invention.

[0024] Description of the reference numerals in the drawings:

[0025] 1. Gasifier body; 11. Air outlet frame; 12. Ash discharge auger; 2. First filter element; 21. Filter box; 22. Aluminum film frame; 23. Filter mesh; 24. Slide groove plate; 25. Ash receiving box; 26. Vibration motor; 27. Spring; 3. Second filter element; 31. Filter cylinder; 32. Corrugated pipe; 33. Hole cylinder; 331. Cloth cylinder; 34. Scraping frame; 35. Scraping cloth motor; 36. Ash falling screw cylinder; 37. Plug; 38. Gas guide cylinder. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1-5A biomass gasifier comprises a gasifier body 1, a first filter element 2 and a second filter element 3, an air outlet frame 11 is fixed through the bottom of the gasifier body 1, and an ash discharge auger 12 is fixed horizontally on the bottom surface of the gasifier body 1, the first filter element 2 is connected and arranged at the end of the air outlet frame 11, and the other end of the first filter element 2 is connected and arranged with the second filter element 3, the first filter element 2 comprises a filter box 21, one end of the filter box 21 is connected and fixed with an aluminum film frame 22, and the filter box 21 The interior of the filter box 21 is horizontally and vertically fixed with multiple filter screens 23, and the multiple filter screens 23 adopt a wedge-shaped structure. The second filter element 3 includes a filter cartridge 31, which is arranged on the side of the filter box 21 away from the gasifier body 1, and the bottom end of the filter cartridge 31 is connected and fixed with an ash falling spiral cylinder 36, and the ash falling spiral cylinder 36 is horizontally connected and fixed with a bellows 32, and the other end of the bellows 32 is connected to the end surface of the filter box 21 on the side away from the gasifier body 1, and a hole cylinder 33 is vertically fixed in the filter cartridge 31, and the hole cylinder 33 is fixed to the bottom end of the filter cartridge 31. A cloth cylinder 331 is fixed on the inner wall of 3, a scraper motor 35 is vertically fixed on the top surface of the hole cylinder 33, and a scraper frame 34 is vertically rotatably connected to the inner top surface of the hole cylinder 33, the top of the scraper frame 34 is fixed on the output end of the scraper motor 35, and an air guide cylinder 38 is connected and fixed on the top surface of the filter cylinder 31. During use, biomass raw materials are added to the gasification furnace body 1, and the combustible gas generated by the combustion of the biomass raw materials is guided into the filter box 21 through the aluminum film frame 22, and the combustible gas passes through the internal multiple filter screens 23 in turn, and the dust is filtered and removed through the multiple filter screens 23, and then the combustible gas is guided into the filter cylinder 31 through the bellows 32, and the combustible gas is filtered upward through the cloth cylinder 331 and the hole cylinder 33 to remove the dust therein, and then the combustible gas is introduced into the combustion chamber through the air guide cylinder 38 for combustion, so that the dust in the derived combustible gas passes through the first filter element 2 and the second filter element 3, so as to improve the cleanliness of the combustible gas and ensure the combustibility and combustion sufficiency of the combustible gas.

[0028] See also Figure 3 A plurality of ash-falling grooves are provided on the bottom surface of the filter box 21 in a horizontal and vertical manner, and the plurality of ash-falling grooves correspond to the plurality of filter screens 23 one by one. Slide plates 24 are vertically fixed on both sides of the plurality of ash-falling grooves on the bottom surface of the filter box 21. An ash receiving box 25 is horizontally provided below the plurality of ash-falling grooves of the filter box 21, and an opening is provided on the top surface of the ash receiving box 25. The ash receiving box 25 is horizontally slidably assembled in the slide plate 24. During use, the dust filtered by the filter screen 23 falls downward into the ash receiving box 25 under the action of gravity, and then the ash receiving box 25 is pulled to dump the filtered dust later.

[0029] See also Figure 3, a vibration motor 26 is horizontally fixed on the top surface of the filter cartridge 21, and a plurality of springs 27 are vertically arranged on both sides of the filter cartridge 21. A aluminum film frame 22 is fixedly connected and communicated on one side end surface of the filter cartridge 21 close to the gasifier body 1, and the aluminum film frame 22 is fixed at the end of the air outlet frame 11. The air outlet frame 11 is fixedly connected to the end of the spring 27. During use, the vibration motor 26 is started to drive the filter cartridge 21 to vibrate, causing the spring 27 to deform and accelerating the rapid fall of the dust in the filter cartridge 21.

[0030] Refer to Figure 4 , a cloth cylinder 331 is fixed on the inner wall of the hole cylinder 33, and a plug 37 is assembled by threading at the bottom end of the dust falling screw cylinder 36. During use, the plug 37 is rotated at the bottom end of the dust falling screw cylinder 36 to discharge the dust in the dust falling screw cylinder 36.

[0031] During use, the biomass raw material is added into the gasifier body 1, and the combustible gas generated by burning the biomass raw material is guided into the filter cartridge 21 through the aluminum film frame 22. The combustible gas sequentially passes through a plurality of filter meshes 23 inside. The dust is filtered and removed through the plurality of filter meshes 23. Then the combustible gas is guided into the filter cylinder 31 through the corrugated pipe 32. The combustible gas passes upward through the cloth cylinder 331 and the hole cylinder 33 to filter and remove the dust therein. Then the combustible gas is introduced into the combustion chamber through the air guide cylinder 38 for combustion, so that the dust in the exported combustible gas passes through the first filter element 2 and the second filter element 3, improving the cleanliness of the combustible gas.

[0032] The above is only the preferred specific embodiment of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A biomass gasifier, characterized in that: The invention comprises a gasification furnace body (1), a first filter element (2) and a second filter element (3); an air outlet frame (11) is fixedly connected to the bottom of the gasification furnace body (1), and an ash discharge auger (12) is fixedly connected to the bottom surface of the gasification furnace body (1); the first filter element (2) is connectedly arranged at the end of the air outlet frame (11), and the other end of the first filter element (2) is connectedly arranged with the second filter element (3); the first filter element (2) comprises a filter box (21), one end of the filter box (21) is connectedly fixedly connected with an aluminum film frame (22), and a plurality of filter screens (23) are fixedly arranged in a horizontal and vertical manner inside the filter box (21), and the plurality of filter screens (23) adopt a wedge-shaped structure; the second filter element (3) comprises a filter cartridge (31), and the filter cartridge (31) is arranged at the filter box (21). The box (21) is located at a side away from the gasifier body (1), and the bottom end of the filter cartridge (31) is connected and fixed with an ash falling spiral cylinder (36), a bellows (32) is horizontally connected and fixed on the ash falling spiral cylinder (36), and the other end of the bellows (32) is connected to the end surface of the filter box (21) at a side away from the gasifier body (1), a hole cylinder (33) is vertically fixed in the filter cartridge (31), and a cloth cylinder (331) is fixed on the inner wall of the hole cylinder (33), a scraping motor (35) is vertically fixed on the top surface of the hole cylinder (33), and a scraper frame (34) is vertically rotatably connected on the inner top surface of the hole cylinder (33), the top end of the scraper frame (34) is fixed on the output end of the scraping motor (35), and an air guide cylinder (38) is connected and fixed on the top surface of the filter cartridge (31).

2. The biomass gasifier according to claim 1, characterized in that: A plurality of ash-falling grooves are provided on the bottom surface of the filter box (21) in a horizontal and vertical manner, and the plurality of ash-falling grooves correspond one-to-one to the plurality of filter screens (23). Slide plates (24) are vertically fixed on both sides of the plurality of ash-falling grooves on the bottom surface of the filter box (21).

3. A biomass gasifier according to claim 2, characterized in that: An ash receiving box (25) is horizontally arranged below the multiple ash falling slots of the filter box (21), and an opening is arranged on the top surface of the ash receiving box (25). The ash receiving box (25) is horizontally slidably assembled in the slide slot plate (24).

4. The biomass gasifier according to claim 3, characterized in that: A vibration motor (26) is horizontally fixed on the top surface of the filter box (21), and a plurality of springs (27) are vertically arranged on both sides of the filter box (21).

5. The biomass gasifier according to claim 4, characterized in that: An aluminum film frame (22) is connected and fixed to an end surface of one side of the filter box (21) close to the gasification furnace body (1), and the aluminum film frame (22) is fixed to the end of the gas outlet frame (11).

6. The biomass gasifier according to claim 5, characterized in that: The air outlet frame (11) is fixedly connected to the end of the spring (27).

7. The biomass gasifier according to claim 6, characterized in that: A cloth cylinder (331) is fixed on the inner wall of the hole cylinder (33), and a screw plug (37) is threadedly assembled on the bottom end of the ash falling screw cylinder (36).

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