Material pressing mechanism of downdraft biomass gasification furnace

Abstract

The utility model discloses a material pressing mechanism of a downdraft biomass gasification furnace, and particularly relates to the technical field of downdraft biomass gasification furnaces. A notch is formed in a cover body, a sliding plate is arranged in the notch in a sliding mode, a push rod is arranged on the sliding plate, a material discharging pipe is arranged on the cover body, a material discharging groove is formed in the material discharging pipe, and the material discharging groove is communicated with an extending part. According to the material pressing mechanism of the downdraft biomass gasification furnace, the supporting plate is supported through the multiple bases arranged in the circumferential array mode, materials are gasified through the box bodies on the bases, the materials are placed through the extending parts on the box bodies, and therefore the materials can be placed conveniently and rapidly. According to the reaction kettle, sealing of materials during reaction is achieved through the cover body on the extending part, sliding of the sliding plate is achieved through the notch formed in the cover body, meanwhile, the materials are compressed through movement of the sliding plate, the sliding plate is controlled through the push rod on the sliding plate, and the materials are placed through the discharging pipe on the cover body.

Description

Technical Field

[0001] This utility model relates to the technical field of downdraft biomass gasifiers, and more specifically to a pressing mechanism for a downdraft biomass gasifier. Background Technology

[0002] Pressurization in downdraft biomass gasifiers refers to applying pressure to the biomass feedstock during the gasification process to maintain a certain density and permeability within the furnace, thereby promoting the gasification reaction. The purpose of pressurization is to improve the efficiency and stability of the gasifier and ensure the smooth progress of the gasification process.

[0003] According to the public announcement number: CN205046066U, the public announcement date: 2016-02-24, the disclosed downdraft positive pressure biomass gasification furnace includes a furnace body, an inner furnace cylinder, an ash removal device, and an air inlet pipe. The furnace body tightly covers the outside of the inner furnace cylinder. A feed pipe is provided at the top of the inner furnace cylinder. A sealed steam chamber and a combustible gas chamber are arranged sequentially from top to bottom in the upper part of the inner furnace cylinder. The steam chamber is provided with a water inlet pipe and a steam pipe. The combustible gas chamber is provided with a combustible gas outlet pipe and a gas production manifold. The air inlet pipe extends into the interior of the inner furnace cylinder. An annular groove is provided at two positions on the inner surface of the furnace body, one in the middle and one in the lower middle part of the inner furnace cylinder, forming an annular sealed space. An exhaust hole is provided on the upper side wall of the inner furnace cylinder, which connects to the annular sealed space. Both annular sealed spaces are connected to the combustible gas outlet pipe.

[0004] As can be seen from the aforementioned patents and prior art, when feeding materials into a downdraft gasifier, the materials are usually fed into the gasifier through the furnace opening and then reacted inside the furnace. However, if the raw materials are not compacted after entering the gasifier, the density of the materials cannot be maintained when they fall, which will affect the gasification process of the gasifier. Utility Model Content

[0005] The purpose of this invention is to provide a pressing mechanism for a downdraft biomass gasifier, which compresses the material fed into the gasifier.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pressing mechanism for a downdraft biomass gasification furnace, comprising a support plate, a plurality of bases arranged in a circular array at the bottom of the support plate, a box body on the base, an extension on the box body, the extension being connected to the box body, a cover on the extension, a slot on the cover, a sliding plate slidably disposed within the slot, a push rod on the sliding plate, a discharge pipe on the cover, a discharge trough on the discharge pipe, and the discharge trough being connected to the extension.

[0007] Preferably, the box body has a placement groove, and limit rods are symmetrically arranged in the placement groove, and the slide plate is slidably arranged on the limit rods.

[0008] Preferably, a motor is provided on the cover, and a main shaft is provided on the output end of the motor.

[0009] Preferably, the main shaft has a spiral conveyor belt, which is threaded.

[0010] Preferably, the housing is symmetrically provided with ventilation pipes near the base.

[0011] Preferably, the extension is provided with a groove near the cover, and an insert plate is slidably disposed in the groove, the insert plate being located at the bottom of the discharge trough.

[0012] In the above technical solution, the pressing mechanism of the down-suction biomass gasification furnace provided by this utility model has the following beneficial effects: the support plate is supported by multiple bases arranged in a circumferential array; the material is gasified by the box on the base; the material is placed by the extension on the box; the material is sealed by the cover on the extension; the slide plate is slidable by the slot on the cover; the movement of the slide plate compresses the material; the slide plate is controlled by the push rod on the slide plate; and the material is placed by the discharge pipe on the cover. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure within the extension provided in an embodiment of the present utility model.

[0016] Explanation of reference numerals in the attached figures:

[0017] 1. Support plate; 10. Box body; 100. Placement slot; 11. Base; 12. Ventilation pipe; 13. Extension; 14. Slide; 15. Insert plate; 16. Cover; 17. Slot; 18. Slide plate; 19. Limiting rod; 20. Push rod; 21. Discharge pipe; 22. Discharge chute; 23. Click; 24. Main shaft; 25. Spiral conveyor belt. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0019] like Figure 1-2 As shown, a pressing mechanism for a downdraft biomass gasifier includes a support plate 1. Multiple bases 11 arranged in a circular array are provided at the bottom of the support plate 1. A housing 10 is provided on each base 11. An extension 13 is provided on the housing 10 and is connected to the housing 10. A cover 16 is provided on the extension 13. A slot 17 is provided on the cover 16. A sliding plate 18 is slidably disposed within the slot 17. A push rod 20 is provided on the sliding plate 18. A discharge pipe 21 is provided on the cover 16. A discharge trough 22 is provided on the discharge pipe 21 and is connected to the extension 13.

[0020] Specifically, during use, the material is fed into the discharge pipe 21 through the discharge trough 22, and then the material falls into the extension 13. Then, the push rod 20 is pushed down, and the push rod 20 drives the slide plate 18 to move downward in the slot 17, compressing the material fed into the extension 13. The compressed material has a uniform density when reacting, and can react fully.

[0021] In the above scheme, the support plate 1 is supported by multiple bases 11 arranged in a circular array. The material is vaporized by the box 10 on the base 11. The material is placed by the extension 13 on the box 10. The material is sealed by the cover 16 on the extension 13 during the reaction. The slide plate 18 is slidable by the slot 17 on the cover 16. At the same time, the movement of the slide plate 18 compresses the material. The slide plate 18 is controlled by the push rod 20 on the slide plate 18. The material is placed by the discharge pipe 21 on the cover 16.

[0022] As a further embodiment provided by this utility model, according to Figure 1 and Figure 2 As shown, a placement groove 100 is provided on the box body 10, and limit rods 19 are symmetrically arranged in the placement groove 100. The slide plate 18 is slidably arranged on the limit rods 19.

[0023] Specifically, when the skateboard 18 slides, it will slide on the limiting rod 19. The two limiting rods 19 ensure that the skateboard 18 can stay in the groove 17 when it slides, and prevent it from falling out of the groove 17.

[0024] As a further embodiment provided by this utility model, according to Figure 2 As shown, a motor 23 is provided on the cover 16, and a main shaft 24 is provided on the output end of the motor 23.

[0025] Furthermore, a spiral conveyor belt 25 is mounted on the main shaft 24, and the spiral conveyor belt 25 is spiral in shape.

[0026] Specifically, after the material compression is completed, the motor 23 is started, driving the main shaft 24 to rotate. The rotation of the main shaft 24 then drives the screw conveyor belt 25 to rotate, conveying the material located in the extension 13 into the housing 10 for reaction.

[0027] As a further embodiment provided by this utility model, according to Figure 2 As shown, ventilation pipes 12 are symmetrically arranged on the box body 10 near the base 11.

[0028] Specifically, oxygen is drawn in through the vent pipe 12 to achieve the oxidation of the material.

[0029] As a further embodiment provided by this utility model, according to Figure 2 As shown, a groove 14 is provided on the extension 13 near the cover 16, and an insert plate 15 is slidably disposed in the groove 14. The insert plate 15 is located at the bottom of the discharge trough 22.

[0030] Specifically, after the material is fed, the insert plate 15 is inserted into the chute 14 and the discharge chute 22 is sealed.

[0031] Working principle: During use, the material is fed into the discharge pipe 21 through the discharge chute 22, and then falls into the extension section 13. After the material is fed, the insert plate 15 is inserted into the slide 14 to seal the discharge chute 22. Then, the push rod 20 is pushed down, and the push rod 20 drives the slide plate 18 to move downward in the slot 17. When the slide plate 18 slides, it will slide on the limit rod 19. The two limit rods 19 ensure that the slide plate 18 can stay in the slot 17 when it slides, preventing it from falling out of the slot 17. The material fed into the extension section 13 is compressed. The compressed material has a uniform density when reacting, so it can react fully. After the material is compressed, the motor 23 is started, which drives the main shaft 24 to rotate. After the main shaft 24 rotates, it drives the spiral conveyor belt 25 to rotate, and the material in the extension section 13 is transferred to the box 10 for reaction.

[0032] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A pressing mechanism for a downdraft biomass gasification furnace, characterized in that, The system includes a support plate (1), at the bottom of which are provided multiple bases (11) arranged in a circular array. A box (10) is provided on the base (11), and an extension (13) is provided on the box (10). The extension (13) is connected to the box (10). A cover (16) is provided on the extension (13), and a slot (17) is provided on the cover (16). A slide plate (18) is slidably provided in the slot (17). A push rod (20) is provided on the slide plate (18). A discharge pipe (21) is provided on the cover (16), and a discharge groove (22) is provided on the discharge pipe (21). The discharge groove (22) is connected to the extension (13).

2. The pressing mechanism of a downdraft biomass gasifier according to claim 1, characterized in that, The box (10) has a placement groove (100) and a limit rod (19) is symmetrically arranged in the placement groove (100). The slide plate (18) is slidably arranged on the limit rod (19).

3. The pressing mechanism of a downdraft biomass gasifier according to claim 2, characterized in that, A motor (23) is provided on the cover (16), and a main shaft (24) is provided on the output end of the motor (23).

4. The pressing mechanism of a downdraft biomass gasifier according to claim 3, characterized in that, The main shaft (24) has a spiral conveyor belt (25) that is threaded.

5. The pressing mechanism of a downdraft biomass gasifier according to claim 1, characterized in that, Ventilation pipes (12) are symmetrically arranged on the box (10) near the base (11).

6. The pressing mechanism of a downdraft biomass gasifier according to claim 1, characterized in that, The extension (13) has a groove (14) near the cover (16), and an insert plate (15) is slidably disposed in the groove (14). The insert plate (15) is located at the bottom of the discharge trough (22).

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