Multi-functional biomass gasification furnace

Abstract

The present application relates to the technical field of biomass gasification furnace, and more particularly to a multifunctional biomass gasification furnace. The multifunctional biomass gasification furnace comprises a gasification furnace body, and refractory bricks are symmetrically and fixedly installed in the gasification furnace body. The multifunctional biomass gasification furnace further comprises an oxygen supply mechanism, which comprises a T-shaped circular cover located between the two refractory bricks and rotationally connected with the inner wall of the gasification furnace body. A plurality of oxygen supply pipes are rotationally penetrated through the T-shaped circular cover. A hollow ring is rotationally installed between the T-shaped circular cover and the gasification furnace body. Through the design of the oxygen supply mechanism, when biomass is cracked, the hollow ring is controlled to rotate, the T-shaped circular cover is driven to rotate, and the four oxygen supply pipes are driven to move, so that the oxygen supply direction is adjusted in the horizontal direction. Through the cooperation of the sliding block and the guide groove, the oxygen supply pipe can reciprocate, and the oxygen supply direction is adjusted in the vertical direction. The cracking efficiency of the biomass is improved. Through the design of the adjusting mechanism, the gas inlet amount and the gas collection amount of the gasification furnace body can be conveniently adjusted, and the biomass gasification work of different volumes can be adapted.

Description

Technical Field

[0001] This invention relates to the field of biomass gasification furnace technology, and more particularly to a multifunctional biomass gasification furnace. Background Technology

[0002] A biomass gasifier is a device that converts solid biomass into usable gas, and the combustible gas produced can be widely used in heating and power generation.

[0003] In the biomass gasification process, the oxygen intake volume and oxygen flow direction are among the most critical parameters, directly determining the efficiency of the entire gasification process and the quality of the product gas. Currently, the oxygen supply structure of biomass gasifiers is fixed in position, and the airflow direction is fixed and cannot be changed, resulting in low gasification efficiency. Furthermore, the intake and collection volumes cannot be easily adjusted, making it impossible to adapt to biomass gasification operations of different volumes. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, the present invention provides a multifunctional biomass gasification furnace.

[0005] A multifunctional biomass gasifier includes a gasifier body, in which refractory bricks are symmetrically fixedly installed. It also includes an oxygen supply mechanism, comprising a T-shaped cover located between two of the refractory bricks and rotatably connected to the inner wall of the gasifier body. Multiple oxygen supply pipes rotatably pass through the T-shaped cover. A perforated ring is rotatably installed between the T-shaped cover and the gasifier body, and a guide groove is provided on the perforated ring. The ends of the oxygen supply pipes are hinged to sliding blocks located within the guide grooves via telescopic shafts. An adjustment mechanism for controlling the intake and intake gas volumes is provided on the gasifier body.

[0006] Furthermore, the guide groove is in the shape of an annular wave, and when the T-shaped cover moves, the sliding block cooperates with the guide groove to move the oxygen supply pipe.

[0007] Furthermore, the adjustment mechanism includes a pair of sector tubes fixedly installed on the gasifier body. The bottom of the sector tubes has an air inlet. The gasifier body has a pair of oxygen supply ports communicating with the sector tubes and a control plate is slidably installed thereon. A first adjustment plate is fixedly installed on the control plate, extending into the sector tubes through the air inlets and slidably connected to the sector tubes. An elastic locking pin is elastically slidably installed through the control plate. The bottom of the sector tubes has multiple pin holes that match the elastic locking pins.

[0008] Furthermore, the adjustment mechanism also includes an arc-shaped plate fixedly installed on the first adjustment plate, an outlet communicating with the sector tube is provided on the gasifier body, a second adjustment plate slidably connected to the sector tube is fixedly installed on the arc-shaped plate, and a sealing plate slidably penetrating the sector tube is fixedly installed on the second adjustment plate.

[0009] Furthermore, in order to facilitate the maintenance and repair of the feed inlet of the gasifier body, and to prevent the top of the gasifier body from undergoing plastic deformation due to thermal stress concentration caused by high-temperature gas, a prefabricated water cooling mechanism is provided on the top of the gasifier body.

[0010] Furthermore, the assembled water-cooling mechanism includes a hopper mounted on the gasifier body, a pair of positioning shafts fixedly mounted on the hopper, a pair of positioning frames that cooperate with the positioning shafts fixedly mounted on the gasifier body, and a Y-shaped frame that cooperates with the positioning shafts fixedly mounted on the positioning frame.

[0011] Furthermore, the assembled water cooling mechanism also includes a C-shaped frame that is slidably installed in the positioning frame. A compression spring is provided between the C-shaped frame and the positioning frame. A positioning block that matches the C-shaped frame is fixedly installed on the positioning shaft. A convex plate that matches the positioning frame is slidably installed in the C-shaped frame along the front-back direction.

[0012] Furthermore, the prefabricated water cooling mechanism also includes a slide plate that is slidably installed in the C-shaped frame along the vertical direction. The slide plate is used in conjunction with the positioning block. A stepped block that cooperates with the convex plate and the slide plate is slidably installed in the C-shaped frame along the front-back direction.

[0013] Furthermore, it also includes a sealing cover that is slidably installed inside the hopper. Both the sealing cover and the top of the gasifier body are provided with water storage chambers. A pair of corrugated pipes communicating with the water storage chambers are fixedly installed on the gasifier body. The corrugated pipes are connected to the sealing cover. An L-shaped elastic telescopic frame is fixedly installed on the gasifier body. The corrugated pipes pass through the telescopic end of the L-shaped elastic telescopic frame.

[0014] Furthermore, it also includes a drive motor installed on the gasifier body. The output shaft of the drive motor rotates through the gasifier body and is fixedly connected to an impeller. The wheel shaft of the impeller rotates through the gasifier body and is connected to a transmission assembly. The transmission assembly is connected to the gasifier body, the T-shaped cover, and the hollow ring.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. This invention, through the design of the oxygen supply mechanism, enables the T-shaped cover to rotate and drive the four oxygen supply pipes to move during biomass pyrolysis by controlling the rotation of the hollow ring, thereby achieving horizontal oxygen supply direction adjustment. Through the cooperation of the sliding block and the guide groove, the oxygen supply pipes can be made to swing back and forth, achieving vertical oxygen supply direction adjustment, thus improving the biomass pyrolysis efficiency. Through the design of the adjustment mechanism, the gas intake and gas collection volume of the gasifier can be easily adjusted to adapt to biomass gasification work of different volumes.

[0017] 2. Through the design of the assembled water-cooling mechanism, the present invention enables the cooling water to circulate in the water storage chamber of the sealing cover and the gasifier body during biomass pyrolysis. This allows for heat dissipation and cooling of the top of the sealing cover and the gasifier body, preventing plastic deformation caused by thermal stress concentration due to the high temperature of the gas. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the oxygen supply mechanism of the present invention;

[0020] Figure 3 This is a schematic diagram of the installation of the oxygen supply pipe in this invention;

[0021] Figure 4 This is a schematic diagram of the structure of the guide groove in this invention;

[0022] Figure 5 This is a schematic diagram of the installation of the sliding block in this invention;

[0023] Figure 6 This is a schematic diagram of the adjustment mechanism of the present invention;

[0024] Figure 7 This is a schematic diagram of the installation of the sealing plate of the present invention;

[0025] Figure 8 This is a schematic diagram of the assembled water-cooling mechanism of the present invention;

[0026] Figure 9 This is a schematic diagram of the installation at the C-shaped frame of the present invention;

[0027] Figure 10 This is a schematic diagram of the installation of the positioning block of the present invention;

[0028] Figure 11 This is a schematic diagram of the installation of the sliding plate of the present invention;

[0029] Figure 12 This is a schematic diagram of the installation of the convex plate of the present invention;

[0030] Figure 13This is a schematic diagram of the installation of the sealing cap of the present invention;

[0031] Figure 14 This is a schematic diagram of the water storage cavity structure of the gasification furnace body and sealing cover of the present invention.

[0032] In the attached diagrams: 1: Gasification furnace body; 101: Refractory brick; 201: T-shaped round cover; 202: Oxygen supply pipe; 203: Hollow ring; 204: Guide groove; 205: Telescopic shaft; 206: Sliding block; 301: Fan-shaped pipe; 3011: Air inlet; 3012: Oxygen supply port; 302: Control panel; 303: First adjusting plate; 304: Elastic locking pin; 401: Arc plate; 4011: Air outlet; 402: Second adjusting plate; 403: Sealing plate; 501: Hopper; 502: Positioning shaft; 503: Positioning frame; 504: Y-shaped frame; 601: C-shaped frame; 602: Positioning block; 603: Convex plate; 701: Slide plate; 702: Stepped block; 801: Sealing cover; 802: Corrugated pipe; 901: Drive motor; 902: Impeller. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1

[0035] Multifunctional biomass gasification furnace, such as Figures 1-5 As shown, the system includes a gasifier body 1, with refractory bricks 101 symmetrically fixedly installed inside the gasifier body 1. It also includes an oxygen supply mechanism, which includes a T-shaped cover 201 located between two refractory bricks 101 and rotatably connected to the inner wall of the gasifier body 1. Four oxygen supply pipes 202 are rotatably threaded through the T-shaped cover 201 and are arranged in a ring at equal intervals. A perforated ring 203 is rotatably installed between the T-shaped cover 201 and the gasifier body 1. When the perforated ring 203 rotates... The T-shaped cover 201 rotates in the opposite direction. The inner wall of the hollow ring 203 is provided with a guide groove 204, which is in the shape of a ring wave. The end of the oxygen supply pipe 202 near the hollow ring 203 is hinged to a sliding block 206 located in the guide groove 204 through a telescopic shaft 205. When the T-shaped cover 201 rotates, the sliding block 206 cooperates with the guide groove 204 to make the oxygen supply pipe 202 swing back and forth. The gasifier body 1 is provided with an adjustment mechanism for controlling the gas intake and gas collection volume.

[0036] First, biomass fuel is fed into the gasifier body 1. Then, the gasifier body 1 is started to crack the biomass fuel. At the same time, the hollow ring 203 is controlled to rotate counterclockwise, which causes the T-shaped cover 201 to move clockwise. The T-shaped cover 201 drives the four oxygen supply pipes 202 to move. While the oxygen supply pipes 202 are moving, the sliding block 206 moves along the guide groove 204 and drives the oxygen supply pipes 202 to swing up and down through the telescopic shaft 205. The telescopic end of the telescopic shaft 205 reciprocates and extends with the swing of the oxygen supply pipes 202. This enables the oxygen supply pipes 202 to circulate and supply oxygen in the gasifier body 1. By swinging the oxygen supply pipes 202, the oxygen supply direction of the oxygen supply pipes 202 is adjusted, thereby improving the biomass cracking efficiency.

[0037] like Figure 1 and Figures 6-7 As shown, the adjustment mechanism includes a pair of sector tubes 301 fixedly installed on the gasifier body 1. The bottom of the sector tubes 301 is provided with an air inlet 3011. The outer wall of the gasifier body 1 is provided with a pair of oxygen supply ports 3012 communicating with the sector tubes 301. The two oxygen supply ports 3012 are at the same height as the hollow ring 203. A control plate 302 is slidably installed on the bottom of the sector tubes 301. A first adjustment plate 303 is fixedly installed on the control plate 302, extending into the sector tubes 301 through the air inlet 3011 and slidably connected to the sector tubes 301. The first adjustment plate 303 is used to control and adjust the oxygen entering the gasifier body 1. An elastic locking pin 304 is elastically slidably installed through the bottom of the control plate 302. The bottom of the sector tubes 301 is provided with multiple pin holes that match the elastic locking pin 304.

[0038] Initially, the oxygen supply port 3012 of the gasifier body 1 is in its minimum state. When the gasifier body 1 is pyrolyzing biomass, external air naturally enters the gasifier body 1 through the air inlet 3011, oxygen supply port 3012, hollow ring 203, and four oxygen supply pipes 202. When it is necessary to increase the oxygen content in the gasifier body 1, the elastic locking pin 304 is first pulled down. The elastic locking pin 304 extends and slides elastically, and disengages from the pin hole of the sector tube 301. Then, the operator slides the control plate 302 along the sector tube 301. The control plate 302 drives the first adjusting plate 303 to move, which increases the size of the air inlet 3011 and the oxygen supply port 3012, thereby increasing the volume of oxygen entering the gasifier body 1. Then, the elastic locking pin 304 is released, and the elastic locking pin 304 retracts and slides into the pin hole of the sector tube 301.

[0039] like Figure 6 and Figure 7As shown, the adjustment mechanism also includes an arc-shaped plate 401 fixedly installed on the first adjustment plate 303. The arc-shaped plate 401 divides the sector tube 301 into two independent cavities. The oxygen supply port 3012 of the gasifier body 1 is located in the rear cavity, and the front cavity is the gas collection cavity for the gas generated after biomass pyrolysis. The gasifier body 1 is provided with a gas outlet 4011 that communicates with the sector tube 301. The gas outlet 4011 is located in the gas collection cavity of the sector tube 301. A gas collection device (the gas collection device is existing technology and is not shown in the figure, so it will not be described in detail here) is connected to the gas collection cavity of the sector tube 301. A second adjustment plate 402 that is slidably connected to the sector tube 301 is fixedly installed on the front side of the arc-shaped plate 401. A sealing plate 403 that slides through the sector tube 301 is fixedly installed on the front side of the second adjustment plate 402.

[0040] Initially, the gap between the second adjusting plate 402 and the front side of the inner wall of the sector tube 301 is at its minimum, and the amount of gas collected after biomass pyrolysis is at its minimum. When the oxygen content in the gasifier body 1 increases, the amount of gas generated by biomass pyrolysis increases synchronously. Therefore, it is necessary to increase the amount of gas collected after biomass pyrolysis synchronously. When the first adjusting plate 303 moves, the first adjusting plate 303 drives the second adjusting plate 402 to slide along the inner wall of the sector tube 301 through the arc plate 401. The second adjusting plate 402 drives the sealing plate 403 to slide, thereby expanding the gas outlet 4011 of the gasifier body 1. The gas generated by biomass pyrolysis can pass through the gas outlet 4011 in time, thereby increasing the amount of gas collected after biomass pyrolysis synchronously.

[0041] Example 2

[0042] like Figure 8 As shown, in order to facilitate the maintenance and repair of the feed inlet of the gasifier body 1, and to prevent the top of the gasifier body 1 from undergoing plastic deformation due to the heat stress concentration caused by the high temperature gas, a prefabricated water cooling mechanism is provided on the top of the gasifier body 1. The prefabricated water cooling mechanism includes a hopper 501 set on the gasifier body 1. A pair of positioning shafts 502 are fixedly installed on the left and right sides of the hopper 501. A pair of positioning frames 503 that cooperate with the positioning shafts 502 are fixedly installed on the gasifier body 1. A Y-shaped frame 504 that cooperates with the positioning shafts 502 is fixedly installed on the side of the two positioning frames 503 that are far apart from each other.

[0043] like Figures 8-12 As shown, the assembled water cooling mechanism also includes a C-shaped frame 601 that is slidably installed in the positioning frame 503 along the vertical direction. A compression spring is provided between the bottom of the C-shaped frame 601 and the positioning frame 503. A positioning block 602 that matches the C-shaped frame 601 is fixedly installed at the bottom of the positioning shaft 502. A convex plate 603 that matches the positioning frame 503 is slidably installed in the C-shaped frame 601 along the front-back direction.

[0044] like Figure 11 As shown, the assembled water cooling mechanism also includes a slide plate 701 that is slidably installed in the C-shaped frame 601 in the vertical direction. The slide plate 701 is used in conjunction with the positioning block 602. A step block 702 that cooperates with the convex plate 603 and the slide plate 701 is slidably installed in the C-shaped frame 601 in the front-back direction. When the slide plate 701 slides downward, it can make the convex plate 603 slide backward.

[0045] like Figure 13 and Figure 14 As shown, it also includes a sealing cover 801 that is slidably installed in the hopper 501 in the front-back direction. Both the sealing cover 801 and the top of the gasifier body 1 are provided with water storage chambers. A pair of corrugated pipes 802 that communicate with the water storage chambers are fixedly installed on the front side of the top of the gasifier body 1. The corrugated pipes 802 and the sealing cover 801 are connected by quick connectors (quick connectors are existing technology and will not be described in detail here). An L-shaped elastic telescopic frame located behind the corrugated pipes 802 is fixedly installed on the top of the gasifier body 1. The corrugated pipes 802 pass through the telescopic end of the L-shaped elastic telescopic frame.

[0046] like Figure 13 As shown, it also includes a drive motor 901 installed on the gasifier body 1. The output shaft of the drive motor 901 rotates through the gasifier body 1 and is fixedly connected to an impeller 902. When the impeller 902 rotates, it can circulate the cooling water in the water storage chamber of the sealing cover 801 and the gasifier body 1. The wheel shaft of the impeller 902 rotates through the gasifier body 1 and is connected to a transmission assembly. The transmission assembly consists of a first pulley, a second pulley, a transmission belt, a friction wheel, several first transmission teeth, gears, and several second transmission teeth. The first pulley is fixedly installed at the bottom end of the wheel shaft of the impeller 902, the second pulley is located on one side of the first pulley, the transmission belt is wound around the first pulley and the second pulley, the friction wheel rotates through the gasifier body 1 and rubs against the outer wall of the hollow ring 203, several first transmission teeth are evenly distributed and fixedly installed on the inner wall of the hollow ring 203, the gears are rotatably installed inside the gasifier body 1 and mesh with several first transmission teeth, and several second transmission teeth are evenly distributed and fixedly installed on the outer wall of the T-shaped round cover 201 and mesh with the gears.

[0047] Initially, the hopper 501 is separated from the gasifier body 1, the rear side of the sealing cover 801 abuts against the inner wall of the hopper 501, the compression spring is released, and the bottom of the convex plate 603 abuts against the inner wall of the positioning frame 503, preventing the C-shaped frame 601 from moving. First, the hopper 501 is hoisted onto the upper side of the gasifier body 1 using existing hoisting equipment, with the sealing cover 801 positioned in front of the hopper 501. Then, the hopper 501 is lowered, and subsequently, the two positioning shafts 502 on the hopper 501 contact the two Y-shaped frames 504 respectively. Under the action of the Y-shaped frames 504, the horizontal orientation of the hopper 501 is adjusted until the positioning shafts 502 contact the vertical surface of the Y-shaped frames 504, thus completing the initial orientation adjustment of the hopper 501. Subsequently, the positioning block 602 on the positioning shaft 502 contacts the C-shaped frame 601 and the sliding plate 701. The sliding plate 701 slides downward under the pressure of the positioning block 602 and presses against the inclined surface of the step block 702. The step block 702 slides backward under force and pushes the convex plate 603 to elastically contract and slide. The bottom of the convex plate 603 remains against the positioning frame 503, thus preventing the C-shaped frame 601 from moving. The C-shaped frame 601 can provide support for the hopper 501 through the positioning block 602 and the positioning shaft 502. When the contact area between the two positioning blocks 602 and the C-shaped frame 601 is inconsistent, the positioning block 602, through its cooperation with the C-shaped frame 601, can make the hopper 501 swing left or right in the vertical direction until the two positioning blocks 602 and the C-shaped frame 601 are incompatible. The contact area of ​​the C-shaped frame 601 is consistent, and the bottoms of the two positioning shafts 502 are in contact with the top of the C-shaped frame 601. The positioning block 602, through its cooperation with the sliding plate 701, causes the stepped block 702 to push the convex plate 603 until the bottom of the convex plate 603 is no longer in contact with the positioning frame 503, thereby completing the attitude adjustment of the hopper 501. Then, the hopper 501 is lowered by the hoisting equipment. The two positioning shafts 502 squeeze the C-shaped frame 601, causing the C-shaped frame 601 to descend. The compression spring is compressed, and then the bottom of the sealing cover 801 is connected to the two bellows 802 through a quick connector, connecting the sealing cover 801 to the water storage chamber of the gasifier body 1. Then, the sealing cover 801 is pulled forward, and the sealing cover 801 drives the two bellows 802. The top of 02 moves forward, and the two bellows 802 together drive the telescopic end of the L-shaped elastic telescopic frame to extend forward elastically. The bellows 802 are stretched accordingly, allowing biomass fuel to be fed into the gasifier body 1 through the hopper 501. After the biomass fuel is fed, the sealing cover 801 is pushed backward, causing the sealing cover 801 to slide back to its original position. The sealing cover 801 drives the two bellows 802 to move back to their original position, and the two bellows 802 together drive the telescopic end of the L-shaped elastic telescopic frame to slide back to its original position. Then, the gasifier body 1 is controlled to start heating to pyrolyze the biomass. At the same time, the drive motor 901 is started. The output shaft of the drive motor 901 drives the impeller 902 to rotate. The rotation of the impeller 902 causes the cooling water in the water storage chamber of the sealing cover 801 to circulate.Since most of the sealing cover 801 extends out of the hopper 501, cooling water can be better dissipated when it flows to the position where the sealing cover 801 extends out of the hopper 501.

[0048] At the same time, the impeller 902's shaft drives the first pulley in the transmission assembly to rotate. The first pulley drives the second pulley to rotate via the transmission belt. The second pulley drives the friction wheel to rotate. The friction wheel drives the hollow ring 203 to rotate counterclockwise by rubbing against the hollow ring 203. The hollow ring 203 drives the gear to rotate via several first transmission teeth. The gear drives the T-shaped cover 201 to rotate clockwise via several second transmission teeth, thereby causing the four oxygen supply pipes 202 to swing back and forth.

[0049] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A multifunctional biomass gasification furnace comprising a gasification furnace body (1), characterized in that: The gasification furnace body (1) is symmetrically fixed with refractory bricks (101), and further comprises an oxygen supply mechanism, which comprises a T-shaped circular cover (201) located between two refractory bricks (101) and rotationally connected with the inner wall of the gasification furnace body (1), a plurality of oxygen supply pipes (202) are rotationally arranged on the T-shaped circular cover (201), a hollow ring (203) is rotationally arranged between the T-shaped circular cover (201) and the gasification furnace body (1), a guide groove (204) is formed in the hollow ring (203), the end of the oxygen supply pipe (202) is hingedly connected with a sliding block (206) located in the guide groove (204) through an expansion shaft (205), and an adjusting mechanism for controlling the air inlet and air outlet is arranged on the gasification furnace body (1). The guide groove (204) is annular and wavy, and the sliding block (206) cooperates with the guide groove (204) to move the oxygen supply pipe (202) when the T-shaped circular cover (201) moves. The adjusting mechanism comprises a pair of fan-shaped pipes (301) fixed on the gasification furnace body (1), an air inlet (3011) is formed in the bottom of the fan-shaped pipe (301), a pair of oxygen supply openings (3012) are formed in the gasification furnace body (1) and communicate with the fan-shaped pipe (301), a control plate (302) is slidingly arranged on the fan-shaped pipe (301), a first adjusting plate (303) is fixedly arranged on the control plate (302) and extends into the fan-shaped pipe (301) through the air inlet (3011) and slidingly connects with the fan-shaped pipe (301), a resilient locking pin (304) is resiliently and slidingly arranged through the control plate (302), and a plurality of pin holes matched with the resilient locking pin (304) are formed in the bottom of the fan-shaped pipe (301). The adjusting mechanism further comprises an arc-shaped plate (401) fixed on the first adjusting plate (303), an air outlet (4011) is formed in the gasification furnace body (1) and communicates with the fan-shaped pipe (301), a second adjusting plate (402) is fixedly arranged on the arc-shaped plate (401) and slidingly connects with the fan-shaped pipe (301), and a blocking plate (403) is fixedly arranged on the second adjusting plate (402) and slidingly extends through the fan-shaped pipe (301).

2. The multifunctional biomass gasification furnace according to claim 1, characterized in that: In order to facilitate the maintenance of the feeding port of the gasification furnace body (1) and prevent plastic deformation caused by thermal stress concentration on the top of the gasification furnace body (1) due to high-temperature gas, a water cooling mechanism is arranged on the top of the gasification furnace body (1).

3. The multifunctional biomass gasification furnace according to claim 2, characterized in that: The water cooling mechanism comprises a hopper (501) arranged on the gasification furnace body (1), a pair of positioning shafts (502) are fixedly arranged on the hopper (501), a pair of positioning frames (503) matched with the positioning shafts (502) are fixedly arranged on the gasification furnace body (1), and Y-shaped frames (504) matched with the positioning shafts (502) are fixedly arranged on the positioning frames (503).

4. The multifunctional biomass gasification furnace according to claim 3, characterized in that: The assembled water cooling mechanism further comprises a C-shaped frame (601) slidingly installed in the positioning frame (503), a compression spring is arranged between the C-shaped frame (601) and the positioning frame (503), a positioning block (602) matched with the C-shaped frame (601) is fixedly installed on the positioning shaft (502), and a convex plate (603) matched with the positioning frame (503) is slidingly installed in the C-shaped frame (601) in the front-rear direction.

5. The multifunctional biomass gasification furnace according to claim 4, characterized in that: The assembled water cooling mechanism further comprises a sliding plate (701) slidingly installed in the C-shaped frame (601) in the up-down direction, the sliding plate (701) is used in cooperation with the positioning block (602), and a stepped block (702) matched with the convex plate (603) and the sliding plate (701) is slidingly installed in the C-shaped frame (601) in the front-rear direction.

6. The multifunctional biomass gasification furnace according to claim 3, characterized in that: Further comprising a sealing cover (801) slidingly installed in the hopper (501), the sealing cover (801) and the top of the gasification furnace body (1) are both provided with a water storage cavity, a pair of corrugated pipes (802) in communication with the water storage cavity are fixedly installed on the gasification furnace body (1), the corrugated pipes (802) are in communication with the sealing cover (801), an L-shaped elastic expansion frame is fixedly installed on the gasification furnace body (1), and the corrugated pipes (802) penetrate the expansion ends of the L-shaped elastic expansion frame.

7. The multifunctional biomass gasification furnace according to claim 1, characterized in that: Further comprising a driving motor (901) installed on the gasification furnace body (1), an output shaft of the driving motor (901) rotationally penetrates the gasification furnace body (1) and is fixedly connected with an impeller (902), an axle of the impeller (902) rotationally penetrates the gasification furnace body (1) and is connected with a transmission assembly, and the transmission assembly is connected with the gasification furnace body (1), the T-shaped circular cover (201) and the hollow ring (203).

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