Multifunctional biomass gasification furnace

Abstract

The invention discloses a multifunctional biomass gasification furnace, and relates to the technical field of gasification furnaces, the multifunctional biomass gasification furnace comprises a connecting bottom plate, the top of the connecting bottom plate close to the edge of one side is provided with a combustion assembly used for gasifying various biomasses; two cleaning assemblies used for removing tar generated by biomass combustion are arranged at the position, close to the center, of the top of the connecting bottom plate. According to the multifunctional biomass gasification furnace, when the multifunctional biomass gasification furnace is used for combusting biomass fuel to generate combustible gas, quantitative limestone and biomass fuel are conveyed into the combustion chamber, the combustible gas is generated through combustion and conveyed into the cleaning chamber, tar in coal gas makes contact with the surface of a retention plate, and the tar in the coal gas makes contact with the surface of the retention plate; and tar particles are attached to the surface of the tar particles, so that the tar in the coal gas is purified, and the problem that in the prior art, the tar in most gasification furnaces is difficult to effectively remove and is easily attached to a gas conveying pipeline to damage the stable operation of the gasification furnaces is solved.

Description

Technical Field

[0001] This invention relates to the field of gasifier technology, specifically to a multifunctional biomass gasifier. Background Technology

[0002] The multi-functional biomass gasifier is an environmentally friendly device that uses biomass as raw material and converts it into combustible gas through pyrolysis gasification technology. It can realize multiple application scenarios such as gas production, heating, power supply and cooking. The core is to break through the limitation of the single function of traditional gasifiers. Structurally, it consists of four major systems: raw material processing, gasification reaction, gas purification and energy output. Each system works together to achieve functional switching.

[0003] Existing biomass raw materials, such as straw, sawdust, and rice husks, have significantly different lignin contents. Lignin contains a large number of aromatic ring structures, which easily polymerize to form polycyclic tar during pyrolysis. The tar itself has a certain viscosity. When the internal temperature of other equipment is lower than that of the gasifier, it will quickly condense into a liquid or semi-solid viscous substance, lose its fluidity, and easily adhere to the inner walls of pipes, valves, and burners. After 1-2 months of use, the pipe diameter can shrink by 30%-50%, resulting in insufficient gas pressure at the end, and the stove cannot burn normally. In severe cases, it will block the gas purifier, requiring shutdown for cleaning, affecting the continuous operation of the equipment, and damaging the stability of the multi-functional biomass gasifier.

[0004] Therefore, we propose a multifunctional biomass gasification furnace to address the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide a multifunctional biomass gasifier to solve the problem mentioned in the background art that tar in most gasifiers is difficult to remove effectively and easily adheres to the gas pipeline, thus disrupting the stable operation of the gasifier.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multifunctional biomass gasification furnace, comprising a connecting base plate, a combustion assembly for gasifying various biomass is provided near one edge of the top of the connecting base plate, two cleaning assemblies for cleaning the biomass combustion are provided near the center of the top of the connecting base plate, and two filter assemblies are provided near the other edge of the top of the connecting base plate. Each of the two cleaning assemblies includes a cleaning chamber, and multiple retention plates for adhering tar in the gas are fixedly installed between the inner walls of the two cleaning chambers. The multiple retention plates are divided into two groups, and a lifting plate is provided between the outer surfaces of each group of retention plates. An installation pipe is fixed to the top of each of the two lifting plates, and an electric telescopic frame is provided to the top of each of the two installation pipes. After the gas enters the cleaning chamber, it comes into contact with the multiple retention plates, causing the sticky tar to remain in the rectangular grooves on the surface of the retention plates. Then, by moving the lifting plate downwards, the tar can be scraped off.

[0007] Preferably, both cleaning components further include a cleaning chamber, and the inner walls of both cleaning chambers are slidably connected to a support frame. Mounting brackets are fixedly installed on both outer surfaces of the two cleaning chambers by screws. Hydraulic rods are provided on the inner walls of the four mounting brackets. Multi-stage electric telescopic rods are installed on the outer surfaces of both cleaning chambers via auxiliary frames. A scraper is fixed to one end of each of the two multi-stage electric telescopic rods. A support base plate is provided at the bottom of both cleaning chambers. Telescopic components are fixedly connected to the top of the two support base plates near the four corners. Springs are provided on the outer surfaces of the eight telescopic components. An output pipe is fixedly connected to the outer surface of both cleaning chambers near the center. A first solenoid valve is provided on the outer surface of each of the two output pipes.

[0008] Preferably, both filter components include a filter chamber, the top of both filter chambers is fixedly connected to a smoke outlet pipe, the outer surface of both smoke outlet pipes is provided with a second solenoid valve, and a forward and reverse motor is fixedly installed on the top of both filter chambers near one side edge by screws, and the output end of both forward and reverse motors is fixedly connected to a threaded pipe.

[0009] Preferably, the outer surfaces of the two threaded tubes are threaded with multiple filter plates, the inner walls of the two filter chambers are fixedly installed with limit tubes, the bottoms of the two filter chambers are fixedly connected with recovery pipes, and the top of the connecting base plate is equipped with two conveying pumps through an auxiliary frame, the output ends of the two conveying pumps are fixedly connected with conveying pipes.

[0010] Preferably, the combustion assembly includes a storage bin, with a feed pipe fixedly connected to the outer surface of the storage bin near the top. A screw conveyor is installed inside the storage bin, with a guide pipe fixedly connected to the bottom of the screw conveyor. An ignition chamber is provided at the top of the connecting base plate, and a combustion chamber is coupled to the top of the ignition chamber.

[0011] Preferably, an igniter is installed on the outer surface of the combustion chamber via an auxiliary rod, a feed pipe is fixedly connected to the outer surface of the combustion chamber, a storage tank is installed at the top of the feed pipe, a gas pipe is fixedly connected to the top of the combustion chamber, a diversion pipe is fixedly connected to both outer surfaces of the gas pipe, a third solenoid valve is installed on the outer surface of both diversion pipes, and a support frame is fixedly installed on the top of the connecting base plate.

[0012] Preferably, the outer surface of the storage bin is fixedly connected to the top of the connecting base plate by an auxiliary rod, both ends of the screw conveyor are fixedly extended to the outside of the storage bin, the bottom end of the feed pipe is fixedly extended to the inside of the combustion chamber, and one end of the igniter is fixedly extended to the inside of the combustion chamber.

[0013] Preferably, the bottom of both cleaning chambers is fixedly connected to the top of the support frame, each pair of the four hydraulic rods forms a group, one end of each group of hydraulic rods is fixedly connected to the outer surface of the two support frames, the outer surfaces of the two scrapers movably penetrate into the interior of the two cleaning chambers, the outer surfaces of the two cleaning compartments are fixedly connected to the inner walls of the two cleaning chambers, the bottom of the two electric telescopic frames is fixedly connected to the top of the two cleaning compartments, and the bottom ends of the two mounting pipes movably penetrate into the interior of the two cleaning compartments.

[0014] Preferably, the outer surfaces of the two lifting plates slide against the inner walls of the two cleaning chambers, the bottoms of the two supporting base plates extend movably into the interior of the two cleaning chambers, four adjacent telescopic members form a group of eight telescopic members, the top of each group of telescopic members is fixedly connected to the inner walls of the two cleaning chambers, four adjacent springs form a group of eight springs, one end of each group of springs is fixedly connected to the inner walls of the two cleaning chambers, the other end of each group of springs is fixedly connected to the top of the two supporting base plates, and one end of each of the two diversion pipes extends fixedly into the interior of the two cleaning chambers.

[0015] Preferably, one end of each of the two output pipes is fixedly inserted into the interior of the two filter chambers, the outer surfaces of the two filter chambers are fixedly connected to the top of the connecting base plate through an auxiliary frame, one end of each of the two threaded pipes is movably inserted into the interior of the two filter chambers to the inner wall, the multiple filter plates are divided into two groups, the inner wall of each group of filter plates slides against the outer surface of the two limiting pipes, and one end of each of the two recovery pipes is fixedly connected to the input end of the two delivery pumps.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. When using a multi-functional biomass gasifier to burn biomass fuel to produce combustible gas, a certain amount of limestone and biomass fuel is transported to the combustion chamber. Combustion produces combustible gas, which is then transported to the cleaning chamber. This allows the tar in the gas to come into contact with the surface of the retention plate, causing tar particles to adhere to its surface. This achieves the purification of tar in the gas and solves the problem in most existing gasifiers where tar is difficult to remove effectively and tends to adhere to the gas pipeline, disrupting the stable operation of the gasifier.

[0017] 2. When the tar content in one of the cleaning chambers is too high, the electric telescopic frame is activated, which moves the lifting plate downward to scrape the tar off the outer surfaces of multiple retention plates and moves downward into the cleaning chamber. This allows the scraper to move between the support base plate and the lifting plate until the tar is completely removed from the outer surfaces of the lifting plate and the support base plate, thus cleaning the tar and facilitating the subsequent purification of tar in the gas.

[0018] 3. The purified gas enters the filter chamber through its corresponding output pipe. When the gas in the filter chamber reaches a certain concentration, the filter chamber is sealed, and multiple filter plates are pushed downwards to classify and purify dust of different outer diameters in the gas. This achieves secondary purification of the gas and improves the working efficiency of the subsequent multi-functional biomass gasification furnace. Attached Figure Description

[0019] Figure 1 This is a front perspective view of a multifunctional biomass gasification furnace according to the present invention; Figure 2 This is a side perspective view of a multifunctional biomass gasification furnace according to the present invention; Figure 3 This is a perspective view of the combustion component of a multifunctional biomass gasification furnace according to the present invention. Figure 4 This is a partial sectional perspective view of the spiral conveying device of a multifunctional biomass gasification furnace according to the present invention; Figure 5 This is a sectional perspective view of the storage silo portion of a multifunctional biomass gasification furnace according to the present invention; Figure 6 This is a perspective view of the cleaning component of a multifunctional biomass gasification furnace according to the present invention. Figure 7 This is a sectional perspective view of the cleaning chamber of a multifunctional biomass gasification furnace according to the present invention; Figure 8 For the present invention Figure 7 Enlarged view of point A in the middle; Figure 9 This is a sectional perspective view of the cleaning chamber of a multifunctional biomass gasification furnace according to the present invention; Figure 10 This is a perspective view of the filter assembly of a multifunctional biomass gasification furnace according to the present invention. Figure 11 This is a sectional perspective view of the filter chamber portion of a multifunctional biomass gasification furnace according to the present invention. Figure 12 This is a perspective view of the filter plate portion of a multifunctional biomass gasification furnace according to the present invention.

[0020] In the picture: 1. Connecting base plate; 2. Combustion assembly; 201. Storage bin; 202. Feed pipe; 203. Screw conveyor; 204. Guide pipe; 205. Ignition chamber; 206. Ignition device; 207. Combustion chamber; 208. Storage tank; 209. Discharge pipe; 210. Gas pipe; 3. Cleaning assembly; 301. Cleaning chamber; 302. Support frame; 303. Mounting frame; 304. Hydraulic rod; 305. Multi-stage electric telescopic rod; 306. Scraper; 307. Cleaning bin; 308. Electric telescopic frame; 3 09. Installation pipe; 310. Lifting plate; 311. Retention plate; 312. Support base plate; 313. Telescopic component; 314. Spring; 315. Output pipe; 316. First solenoid valve; 4. Diverter pipe; 5. Third solenoid valve; 6. Bearing frame; 7. Filter assembly; 701. Filter chamber; 702. Smoke outlet pipe; 703. Second solenoid valve; 704. Forward and reverse motor; 705. Threaded pipe; 706. Filter plate; 707. Limiting pipe; 708. Recovery pipe; 709. Transfer pump; 710. Transfer pipe. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-9The present invention provides a technical solution: a multifunctional biomass gasification furnace, wherein the combustion assembly 2 includes a storage bin 201, a feed pipe 202 is fixedly connected to the outer surface of the storage bin 201 near the top, a screw conveyor 203 is provided inside the storage bin 201, a guide pipe 204 is fixedly connected to the bottom of the screw conveyor 203, an ignition chamber 205 is provided at the top of the connecting base plate 1, a combustion chamber 207 is coupled to the top of the ignition chamber 205, an igniter 206 is provided on the outer surface of the combustion chamber 207 through an auxiliary rod, a discharge pipe 209 is fixedly connected to the outer surface of the combustion chamber 207, and the top of the discharge pipe 209... A storage tank 208 is installed at the end. A gas pipe 210 is fixedly connected to the top of the combustion chamber 207. Diverter pipes 4 are fixedly connected to both outer surfaces of the gas pipe 210. A third solenoid valve 5 is installed on the outer surface of each of the two diverter pipes 4. A support frame 6 is fixedly installed on the top of the connecting base plate 1. The outer surface of the storage silo 201 is fixedly connected to the top of the connecting base plate 1 via an auxiliary rod. Both ends of the screw conveyor 203 are fixedly extended to the outside of the storage silo 201. The bottom end of the guide pipe 204 is fixedly extended to the inside of the combustion chamber 207. One end of the igniter 206 is fixedly extended to the inside of the combustion chamber 207. Two cleaning chambers 301 are also included. The bottom of each of the two hydraulic rods 304 is fixedly connected to the top of the support frame 6. Each pair of adjacent hydraulic rods 304 forms a group, and one end of each group of hydraulic rods 304 is fixedly connected to the outer surface of the two support frames 302. The outer surfaces of the two scrapers 306 extend movably into the interior of the two cleaning chambers 301. The outer surfaces of the two cleaning chambers 307 are fixedly connected to the inner walls of the two cleaning chambers 301. The bottoms of the two electric telescopic frames 308 are fixedly connected to the tops of the two cleaning chambers 307. The bottom ends of the two mounting pipes 309 extend movably into the interior of the two cleaning chambers 307. The outer surfaces of the two lifting plates 310 are... The two cleaning chambers 307 do not slide against each other. The bottom of the two support base plates 312 respectively move through the interior of the two cleaning chambers 301. Four adjacent telescopic members 313 are grouped together. The top of each group of telescopic members 313 is fixedly connected to the inner wall of the two cleaning chambers 307. Four adjacent springs 314 are grouped together. One end of each group of springs 314 is fixedly connected to the inner wall of the two cleaning chambers 307. The other end of each group of springs 314 is fixedly connected to the top of the two support base plates 312. One end of each of the two diversion pipes 4 is fixedly connected through the interior of the two cleaning chambers 307.

[0023] In this embodiment, when using a multi-functional biomass gasification furnace to burn biomass fuel to produce combustible gas, the dried and crushed biomass fuel is first fed into the storage silo 201 through the feed pipe 202. Then, the screw conveyor 203 can be started through the external control system. For example... Figures 4-5As shown, the screw conveyor 203 consists of a screw conveyor bin and a drive unit. Its working principle is based on existing mature technology and will not be described in detail here. After the material enters the screw conveyor 203, it is conveyed to the combustion chamber 207 through the feed pipe 204. Then, the valve in the storage tank 208 is opened, allowing the limestone stored in the storage tank 208 to be conveyed to the combustion chamber 207 through the feed pipe 209. Once a measured amount of limestone and biomass fuel have been conveyed to the combustion chamber 207, the igniter 206 is activated through the external control system to release a flame source into the ignition chamber 205, thus igniting the limestone and biomass fuel. In this multi-functional biomass gasifier, the core function of the ignition chamber 205 is to provide an initial high-temperature flame source to initiate the pyrolysis and gasification reaction of the biomass, essentially acting as the gasifier's... The starter primarily generates high temperatures through external fuel combustion, heating the igniter 206 and surrounding biomass raw materials. Once the raw material temperature reaches the pyrolysis threshold, it gradually transitions to a self-sustaining reaction, ultimately achieving ignition. Furthermore, the mixing of biomass fuel with limestone essentially utilizes limestone's four main functions: adjusting melting point, deacidifying, promoting pyrolysis, and improving fluidization. This addresses the core issues of slagging, corrosion, high tar content, and low efficiency in biomass gasification. This method is low-cost, simple to operate, and widely used in multi-functional biomass gasification furnaces. The combusted gas continues to move upwards into the gas pipe 210. At this point, one of the third solenoid valves 5 can be opened via the external control system, allowing the gas to enter the diversion pipe 4 along with the gas pipe 210, and then into one of the cleaning chambers 307. Figure 7As shown, the surface of the retention plate 311 in the cleaning chamber 307 is provided with multiple strip-shaped grooves, and the retention plates 311 are arranged in an alternating pattern with a wavy cross-section. This is to increase the contact area between the retention plates 311 and the gas. Since the tar in the gas has a certain viscosity, when it comes into contact with the surface of the retention plate 311, the plate, made of heat-storing ceramic material, has a temperature lower than the gas temperature and possesses high-temperature resistance and corrosion resistance. It can physically intercept the tar particles, causing them to adhere to its surface, thus purifying the tar in the gas. Once the gas in the cleaning chamber 307 is purified, the first solenoid valve 316 corresponding to the cleaning chamber 307 can be opened, allowing the purified gas to flow freely. The gas is moved from the inside of the output pipe 315 to the next processing equipment. When there is too much tar remaining in the cleaning chamber 307, the third solenoid valve 5 and the first solenoid valve 316 corresponding to the cleaning chamber 307 can be closed by the external control system. At the same time, another third solenoid valve 5 and the first solenoid valve 316 can be opened by the external control system, so that the gas enters the temporal part of another cleaning chamber 307 for purification. This achieves reasonable purification of tar in the gas, thereby preventing the situation where the tar in the multi-functional biomass gasifier cannot be effectively cleaned and easily leads to pipeline blockage. This solves the problem that in most gasifiers in the prior art, the tar is difficult to remove effectively and easily adheres to the gas transmission pipeline, which damages the stable operation of the gasifier.

[0024] like Figures 1-2 and Figures 6-9As shown, a multifunctional biomass gasification furnace includes a connecting base plate 1. A combustion assembly 2 for gasifying various biomass components is disposed near one edge of the top of the connecting base plate 1. Two cleaning assemblies 3 for cleaning the biomass combustion process are disposed near the center of the top of the connecting base plate 1. Two filter assemblies 7 are disposed near the other edge of the top of the connecting base plate 1. Each cleaning assembly 3 includes a cleaning chamber 307. Multiple retention plates 311 for adhering tar in the gas are fixedly installed between the inner walls of the two cleaning chambers 307. The retention plates 311 are divided into two groups. A lifting plate 310 is disposed between the outer surfaces of each group of retention plates 311. An installation pipe 309 is fixed to the top of each of the two lifting plates 310. An electric... The gas enters the cleaning chamber 307 via a telescopic frame 308. Upon contact with multiple retention plates 311, the sticky tar is retained in rectangular grooves on the surface of the retention plates 311. The tar is then scraped off by moving the lifting plate 310 downwards. Both cleaning components 3 also include a cleaning chamber 301. Support frames 302 are slidably connected to the inner walls of both cleaning chambers 301. Mounting frames 303 are fixed to the outer surfaces of both sides of the two cleaning chambers 301 with screws. Hydraulic rods 304 are installed on the inner walls of the four mounting frames 303. Multi-stage electric telescopic rods 305 are installed on the outer surfaces of both cleaning chambers 301 via auxiliary frames. A scraper 306 is fixed to one end of each of the two multi-stage electric telescopic rods 305. The bottom of both cleaning chambers 307 is equipped with… The support base plate 312 has telescopic components 313 fixedly connected to its top near the four corners. Springs 314 are installed on the outer surfaces of all eight telescopic components 313. Output pipes 315 are fixedly connected to the outer surfaces of both cleaning chambers 307 near their centers. First solenoid valves 316 are installed on the outer surfaces of both output pipes 315. The bottoms of both cleaning chambers 301 are fixedly connected to the top of the support frame 6. Each pair of four hydraulic rods 304 forms a group, with one end of each group fixedly connected to the outer surfaces of the two support frames 302. The outer surfaces of the two scrapers 306 extend movably into the interior of the two cleaning chambers 301. The outer surfaces of the two cleaning chambers 307 are fixedly connected to the inner walls of the two cleaning chambers 301. The bottoms of two electric telescopic frames 308 are fixedly connected to the tops of two cleaning chambers 307, respectively. The bottom ends of two mounting pipes 309 extend movably into the interior of two cleaning chambers 307, respectively. The outer surfaces of two lifting plates 310 slide against the inner walls of two cleaning chambers 307, respectively. The bottoms of two support base plates 312 extend movably into the interior of two cleaning chambers 301, respectively. Four adjacent telescopic components 313 form a group, and the top of each group of telescopic components 313 is fixedly connected to the inner walls of two cleaning chambers 307, respectively. Four adjacent springs 314 form a group, and one end of each group of springs 314 is fixedly connected to the inner walls of two cleaning chambers 307, while the other end of each group of springs 314 is fixedly connected to the tops of two support base plates 312, respectively.One end of each of the two diversion pipes 4 is fixedly inserted into the interior of each of the two cleaning chambers 307.

[0025] In this embodiment, when the tar content in one of the cleaning chambers 307 is too high, the electric telescopic frame 308 corresponding to that cleaning chamber 307 can be activated via an external control system. For example... Figure 6 As shown, the electric telescopic frame 308 consists of two hydraulic booster rods and a connecting rod. Its purpose is to facilitate the vertical movement of the mounting tube 309. As the hydraulic booster rods in the electric telescopic frame 308 shorten, they drive the corresponding mounting tube 309 downwards, thereby pushing the connected lifting plate 310 downwards. For example... Figure 6 As shown, the outer surface of the lifting plate 310 is in complete contact with the outer surfaces of the multiple retention plates 311. By moving the lifting plate 310 downward, the tar adhering to the surfaces of the multiple retention plates 311 can be scraped clean. When the lifting plate 310 moves downward to the position where it contacts the top of the support base plate 312, it will exert a downward force on the support base plate 312, thereby pushing the support base plate 312 downward. This causes the corresponding multiple springs 314 to extend downward until the support base plate 312 moves downward into the cleaning chamber 301. When the support base plate 312 moves downward to the bottom of the support frame 302, the two hydraulic rods 304 and the multi-stage electric telescopic rods 305 corresponding to the cleaning chamber 301 can be activated, causing them to extend synchronously and pushing the support frame 302 into the cleaning chamber 301. Figure 7As shown, the distance between the scraper 306 and the inner top surface of the support frame 302 is consistent with the thickness of the lifting plate 310, and the bottom of the support frame 302 is flush with the bottom of the scraper 306. When the mounting tube 309 pushes the support base plate 312 downward and it remains at the bottom of the support frame 302, while the lifting plate 310 remains between the relative inner walls of the support frame 302, the electric telescopic frame 308 can be activated again to move the lifting plate 310 upward a certain distance until the top of the lifting plate 310 contacts the inner wall of the support frame 302. At this point, the multi-stage electric telescopic rod 305 can be activated again through the external control system to extend it further, thereby allowing the scraper 306 to remain at the support base plate 302. The plate 312 moves between the lifting plate 310 and the lifting plate 310, thereby pushing the tar trapped between them forward until the tar is completely removed from the outer surface of the lifting plate 310 and the supporting base plate 312, thus cleaning the tar. After the tar is cleaned, the multi-stage electric telescopic rod 305 can be activated again to shorten it, driving the scraper 306 to reset. Then, the two hydraulic rods 304 are activated again to shorten them synchronously, driving the support frame 302 to reset. At the same time, the lifting plate 310 is driven to reset through the action of the electric telescopic frame 308. The supporting base plate 312 will also reset under the elastic action of the four springs 314, thus cleaning the tar in the cleaning chamber 301 and facilitating the subsequent purification of tar in the gas.

[0026] like Figures 1-2 and Figures 10-12 As shown, both filter components 7 include filter chambers 701. The tops of both filter chambers 701 are fixedly connected to smoke outlet pipes 702. The outer surfaces of both smoke outlet pipes 702 are equipped with second solenoid valves 703. Near one edge of the top of each filter chamber 701, a forward / reverse motor 704 is fixedly installed with screws. The output ends of both forward / reverse motors 704 are fixedly connected to threaded pipes 705. Multiple filter plates 706 are threaded onto the outer surfaces of both threaded pipes 705. Limiting pipes 707 are fixedly installed between the opposing inner walls of the two filter chambers 701. The bottoms of both filter chambers 701 are fixedly connected to recovery pipes 708, which connect to the base plate. Two delivery pumps 709 are installed at the top of the 1 via an auxiliary frame. The output ends of the two delivery pumps 709 are fixedly connected to delivery pipes 710. One end of each of the two output pipes 315 is fixedly inserted into the interior of the two filter chambers 701. The outer surfaces of the two filter chambers 701 are fixedly connected to the top of the connecting base plate 1 via the auxiliary frame. One end of each of the two threaded pipes 705 is movably inserted into the interior of the two filter chambers 701 to the inner wall. Multiple filter plates 706 are divided into two groups. The inner wall of each group of filter plates 706 slides against the outer surface of the two limiting pipes 707. One end of each of the two recovery pipes 708 is fixedly connected to the input end of each of the two delivery pumps 709.

[0027] In this embodiment, the purified gas enters the filter chamber 701 through its corresponding output pipe 315. When the gas in the filter chamber 701 reaches a certain concentration, the first solenoid valve 316 corresponding to the filter chamber 701 is closed. Simultaneously, the first solenoid valve 316 on the surface of another output pipe 315 is opened, allowing the gas to enter another filter chamber 701. Then, the forward and reverse motor 704, located at the top of the filter chamber 701 which already contains a measured amount of gas, is activated, causing it to rotate the threaded pipe 705, thereby pushing multiple filter plates 706 downwards. For example... Figure 12 As shown, the multiple filter plates 706 have different pore sizes on their surfaces. This is to classify and purify dust particles of different outer diameters in the gas. As the filter plates 706 move downwards, the dust particles of different pore sizes are moved downwards to the bottom of the filter chamber 701. Then, the second solenoid valve 703 located at the top of the filter chamber 701 can be opened, allowing the gas in the filter chamber 701 to flow outwards through the exhaust pipe 702 to the next gas treatment stage. Once the purified gas in the filter chamber 701 has been released, the process is complete. The second solenoid valve 703 can be closed, and then the delivery pump 709 corresponding to the filter chamber 701 can be started to draw gas into the filter chamber 701 until the filter chamber 701 is under negative pressure. This allows the dirt trapped in the filter chamber 701 to flow out of the filter chamber 701 through the gaps between the multiple filter plates 706, enter the interior of the recovery pipe 708, and be transported outward along the delivery pipe 710 to the external collection equipment. This achieves secondary purification of the coal gas and improves the working efficiency of the subsequent multi-functional biomass gasification furnace.

[0028] The operating method and working principle of this device are as follows: When using the multi-functional biomass gasification furnace to burn biomass fuel to produce combustible gas, firstly, the dried and crushed biomass fuel is fed into the storage silo 201 through the feed pipe 202. Then, the screw conveyor 203 can be started through the external control system. After the material enters the screw conveyor 203, it is conveyed to the combustion chamber 207 through the guide pipe 204. Then, the valve in the storage tank 208 can be opened, so that the limestone stored in the storage tank 208 is conveyed to the combustion chamber 207 through the discharge pipe 209. When a certain amount of limestone and biomass fuel have been conveyed into the combustion chamber 207, the igniter 2 can be started through the external control system. 06. An ignition source is released into the ignition chamber 205, causing the limestone and biomass fuel to burn. The combusted gas continues to move upwards into the gas pipe 210. At this point, one of the third solenoid valves 5 can be opened, allowing the gas to enter the diversion pipe 4 along with the gas pipe 210, and then into one of the cleaning chambers 307. Because the tar in the gas has a certain viscosity, when it comes into contact with the surface of the retention plate 311, which is made of heat-storing ceramic material and has a temperature lower than that of the gas, and possesses high-temperature resistance and corrosion resistance, it can physically intercept the tar particles, causing them to adhere to its surface and purifying the tar in the gas. When the tar particles in the cleaning chamber 307... After the gas purification is completed, the first solenoid valve 316 corresponding to the cleaning chamber 307 can be opened, allowing the purified gas to move out of the output pipe 315 to the next processing equipment. When the amount of tar remaining in the cleaning chamber 307 is too high, the third solenoid valve 5 and the first solenoid valve 316 corresponding to the cleaning chamber 307 can be closed through the external control system. At the same time, another third solenoid valve 5 and the first solenoid valve 316 can be opened through the external control system, allowing the gas to enter the temporal part of another cleaning chamber 307 for purification. The purified gas enters the interior of the filter chamber 701 through its corresponding output pipe 315. When the gas in the filter chamber 701 reaches a certain concentration, the first solenoid valve 316 corresponding to the filter chamber 701 can be closed. A solenoid valve 316 is opened simultaneously with another solenoid valve 316 located on the surface of another output pipe 315, allowing gas to enter the interior of another filter chamber 701. Then, a forward / reverse motor 704, located at the top of the filter chamber 701 which already contains a measured amount of gas, is activated, causing the threaded pipe 705 to rotate. This pushes multiple filter plates 706 downwards, opening a second solenoid valve 703 located at the top of the filter chamber 701. This allows the gas within the filter chamber 701 to flow outwards through the exhaust pipe 702 to the next gas treatment stage. Once the purified gas in the filter chamber 701 has been released, the second solenoid valve 703 is closed, and then the corresponding delivery pump 709 is started.This process draws gas into the filter chamber 701 until it is under negative pressure. This causes the dirt trapped in the filter chamber 701 to flow outwards through the gaps between the multiple filter plates 706, entering the recovery pipe 708 and then being transported outwards along the conveying pipe 710 to an external collection device. When the tar content in one of the cleaning chambers 307 is too high, the corresponding electric telescopic frame 308 can be activated via an external control system. As the hydraulic booster rod in the electric telescopic frame 308 shortens, it drives the corresponding mounting pipe 309 downwards, thereby pushing the connected lifting plate 310 downwards. For example... Figure 6 As shown, the outer surface of the lifting plate 310 is in complete contact with the outer surfaces of the multiple retention plates 311. By moving the lifting plate 310 downward, the tar adhering to the surfaces of the multiple retention plates 311 can be scraped clean. When the lifting plate 310 moves downward to the position where it contacts the top of the support base plate 312, it will exert a downward force on the support base plate 312, thereby pushing the support base plate 312 downward. This causes the corresponding multiple springs 314 to extend downward until the support base plate 312 moves downward into the cleaning chamber 301. When the support base plate 312 moves downward to the bottom of the support frame 302, the two hydraulic rods 304 and the multi-stage electric telescopic rods 305 corresponding to the cleaning chamber 301 can be activated, causing them to extend synchronously and pushing the support frame 302 into the cleaning chamber 301. Figure 7 As shown, the distance between the scraper 306 and the inner top surface of the support frame 302 is consistent with the thickness of the lifting plate 310, and the bottom of the support frame 302 is flush with the bottom of the scraper 306. When the mounting tube 309 pushes the support base plate 312 downward and it remains at the bottom of the support frame 302, while the lifting plate 310 remains between the relative inner walls of the support frame 302, the electric telescopic frame 308 can be activated again to move the lifting plate 310 upward a certain distance until the top of the lifting plate 310 contacts the inner wall of the support frame 302. At this point, the multi-stage electric telescopic rod 305 can be activated again through the external control system to continue extending. The length of the slide plate allows the scraper 306 to move between the support base plate 312 and the lifting plate 310, thereby pushing the tar trapped between them forward until the tar is completely removed from the outer surface of the lifting plate 310 and the support base plate 312, thus cleaning the tar. After the tar is cleaned, the multi-stage electric telescopic rod 305 can be activated again to shorten it, causing the scraper 306 to reset. Then, the two hydraulic rods 304 can be activated again to shorten them synchronously, causing the support frame 302 to reset. At the same time, the lifting plate 310 is reset through the action of the electric telescopic frame 308, and the support base plate 312 will also reset under the elastic action of the four springs 314.

[0029] The wiring diagrams for the spiral conveyor 203, ignition chamber 205, igniter 206, hydraulic rod 304, multi-stage electric telescopic rod 305, electric telescopic frame 308, first solenoid valve 316, third solenoid valve 5, second solenoid valve 703, forward and reverse motor 704, and conveying pump 709 in this invention are common knowledge in the field, and their working principles are known technologies. The appropriate model is selected according to actual use. Therefore, the control methods and wiring layouts of the spiral conveyor 203, ignition chamber 205, igniter 206, hydraulic rod 304, multi-stage electric telescopic rod 305, electric telescopic frame 308, first solenoid valve 316, third solenoid valve 5, second solenoid valve 703, forward and reverse motor 704, and conveying pump 709 will not be explained in detail.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multifunctional biomass gasification furnace, comprising a connecting base plate (1), wherein a combustion assembly (2) for gasifying various types of biomass is provided on the top of the connecting base plate (1) near one side edge, two cleaning assemblies (3) for removing tar produced by biomass combustion are provided on the top of the connecting base plate (1) near the center, and two filter assemblies (7) are provided on the top of the connecting base plate (1) near the other side edge, characterized in that: Both cleaning components (3) include a cleaning chamber (307). Multiple retention plates (311) for adhering tar in coal gas are fixedly installed between the inner walls of the two cleaning chambers (307). The multiple retention plates (311) are divided into two groups. A lifting plate (310) is provided between the outer surfaces of each group of retention plates (311). An installation pipe (309) is fixed to the top of each of the two lifting plates (310). An electric telescopic frame (308) is provided to the top of each of the two installation pipes (309). After the gas enters the cleaning chamber (307), it comes into contact with multiple retention plates (311), causing the sticky tar to remain in the rectangular grooves on the surface of the retention plates (311). Then, the tar can be scraped off by moving the lifting plate (310) downward.

2. The multifunctional biomass gasification furnace according to claim 1, characterized in that: Both cleaning components (3) further include a cleaning chamber (301), and the inner walls of both cleaning chambers (301) are slidably connected to a support frame (302). Mounting brackets (303) are fixedly installed on both outer surfaces of the two cleaning chambers (301) by screws. Hydraulic rods (304) are also provided on the inner walls of the four mounting brackets (303). Multi-stage electric telescopic rods (305) are provided on the outer surfaces of both cleaning chambers (301) via auxiliary frames. The two multi-stage electric telescopic rods (305)... One end of each is fixed with a scraper (306), and the bottom of each of the two cleaning chambers (307) is provided with a support base plate (312). The top of each of the two support base plates (312) is fixedly connected with telescopic components (313) near the four corners. The outer surface of each of the eight telescopic components (313) is provided with a spring (314). The outer surface of each of the two cleaning chambers (307) is fixedly connected with an output pipe (315) near the center. The outer surface of each of the two output pipes (315) is provided with a first solenoid valve (316).

3. The multifunctional biomass gasification furnace according to claim 2, characterized in that: Both filter components (7) include a filter chamber (701), and the top of each filter chamber (701) is fixedly connected to a smoke outlet pipe (702). The outer surface of each smoke outlet pipe (702) is provided with a second solenoid valve (703). A forward and reverse motor (704) is fixedly installed on the top of each filter chamber (701) near one side edge by screws. The output end of each forward and reverse motor (704) is fixedly connected to a threaded pipe (705).

4. The multifunctional biomass gasification furnace according to claim 3, characterized in that: Multiple filter plates (706) are threaded onto the outer surfaces of the two threaded tubes (705). Limiting tubes (707) are fixedly installed between the relative inner walls of the two filter chambers (701). A recovery tube (708) is fixedly connected to the bottom of the two filter chambers (701). Two delivery pumps (709) are set on the top of the connecting base plate (1) through an auxiliary frame. The output ends of the two delivery pumps (709) are fixedly connected to a delivery tube (710).

5. The multifunctional biomass gasification furnace according to claim 4, characterized in that: The combustion assembly (2) includes a storage bin (201), with a feed pipe (202) fixedly connected to the outer surface of the storage bin (201) near the top. A screw conveyor (203) is installed inside the storage bin (201), with a feed pipe (204) fixedly connected to the bottom of the screw conveyor (203). An ignition chamber (205) is installed at the top of the connecting base plate (1), and a combustion chamber (207) is coupled to the top of the ignition chamber (205).

6. The multifunctional biomass gasification furnace according to claim 5, characterized in that: An igniter (206) is installed on the outer surface of the combustion chamber (207) via an auxiliary rod. A feed pipe (209) is fixedly connected to the outer surface of the combustion chamber (207). A storage tank (208) is installed at the top of the feed pipe (209). A gas pipe (210) is fixedly connected to the top of the combustion chamber (207). Diverter pipes (4) are fixedly connected to the outer surfaces of both sides of the gas pipe (210). A third solenoid valve (5) is installed on the outer surface of both diverter pipes (4). A support frame (6) is fixedly installed on the top of the connecting base plate (1).

7. The multifunctional biomass gasification furnace according to claim 6, characterized in that: The outer surface of the storage bin (201) is fixedly connected to the top of the connecting base plate (1) by an auxiliary rod. Both ends of the spiral conveyor (203) are fixedly extended to the outside of the storage bin (201). The bottom end of the feed pipe (204) is fixedly extended to the inside of the combustion chamber (207). One end of the igniter (206) is fixedly extended to the inside of the combustion chamber (207).

8. The multifunctional biomass gasification furnace according to claim 7, characterized in that: The bottom of each of the two cleaning chambers (301) is fixedly connected to the top of the support frame (6). Each pair of the four hydraulic rods (304) forms a group. One end of each group of hydraulic rods (304) is fixedly connected to the outer surface of the two support frames (302). The outer surfaces of the two scrapers (306) are movably connected to the interior of the two cleaning chambers (301). The outer surfaces of the two cleaning bins (307) are fixedly connected to the inner walls of the two cleaning chambers (301). The bottoms of the two electric telescopic frames (308) are fixedly connected to the tops of the two cleaning bins (307). The bottom ends of the two mounting pipes (309) are movably connected to the interior of the two cleaning bins (307).

9. The multifunctional biomass gasification furnace according to claim 8, characterized in that: The outer surfaces of the two lifting plates (310) slide against the inner walls of the two cleaning chambers (307), the bottoms of the two supporting base plates (312) extend into the interior of the two cleaning chambers (301), four adjacent telescopic members (313) form a group, the top of each group of telescopic members (313) is fixedly connected to the inner walls of the two cleaning chambers (307), four adjacent springs (314) form a group, one end of each group of springs (314) is fixedly connected to the inner walls of the two cleaning chambers (307), and the other end of each group of springs (314) is fixedly connected to the top of the two supporting base plates (312), and one end of each of the two diversion pipes (4) extends into the interior of the two cleaning chambers (307).

10. The multifunctional biomass gasification furnace according to claim 9, characterized in that: One end of each of the two output pipes (315) is fixedly inserted into the interior of the two filter chambers (701). The outer surfaces of the two filter chambers (701) are fixedly connected to the top of the connecting base plate (1) through an auxiliary frame. One end of each of the two threaded pipes (705) is movably inserted into the interior of the two filter chambers (701) to the inner wall. The multiple filter plates (706) are divided into two groups. The inner wall of each group of filter plates (706) slides against the outer surface of the two limiting pipes (707). One end of each of the two recovery pipes (708) is fixedly connected to the input end of the two delivery pumps (709).

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