Agricultural and forestry waste biomass gas carbon co-production device

Abstract

The embodiment of the application provides a biomass gas and carbon co-production device for agricultural and forestry waste, and relates to the technical field of biomass energy development. The biomass gas and carbon co-production device for agricultural and forestry waste comprises a bearing base, a feeding box is fixedly connected to the top of the bearing base, a discharging box is fixedly connected to the top of the bearing base, and a carbonization mechanism is arranged at the top of the bearing base. When the Z-shaped guide rod and the contact rod are displaced due to the pushing of the contact plate, the synchronous belt driving connecting component pulls the extrusion plug, the extrusion plug moves inward in the gas collection tank, the gas in the gas collection tank is compressed, the compressed gas is transported to the nozzle pipe through the exhaust pipe, the surface of the heat-resistant filter plate is directionally jetted by the nozzle pipe, the high-speed airflow impacts the surface of the heat-resistant filter plate, fine dust particles adhered can be further removed, the mechanical vibration dust removal effect is enhanced, the jetted gas can locally cool the heat-resistant filter plate in a high-temperature state, and deformation or failure of the heat-resistant filter plate due to long-time high-temperature operation is prevented.

Description

Technical Field

[0001] The invention belongs to the technical field of biomass energy development, and in particular relates to a device for co-producing biomass gas and charcoal from agricultural and forestry waste. Background Art

[0002] Agricultural and forestry waste biomass gas-char cogeneration equipment uses agricultural and forestry waste as raw materials, producing combustible gas and biochar simultaneously through pyrolysis or gasification technologies. This technology not only helps solve agricultural and forestry waste disposal problems but also produces valuable energy products, achieving resource recycling.

[0003] In the prior art (Announcement No. CN218290808U, Patent Name: An Environmentally Friendly Biomass Gas and Charcoal Cogeneration Waste Gas Emission Device), a series of filter blades are provided to completely shield the cross-section of the spherical tube, thereby filtering impurities from the passing combustible gas. The impact force generated by the passing combustible gas drives the filter blades to rotate, causing their bottom ends to collide with elastic knocking rods, shaking off impurities attached to the filter screen and dropping them into an ash storage tank. This allows the filter screen to maintain its filtering effect for a longer period of time, extending its service life. At the same time, a cooling water pipe is provided in the cooling pipe to cool the passing combustible gas, ensuring that the gas storage device does not collapse due to gas contraction. In the process of implementing this technical solution, at least the following problems were discovered in the prior art.

[0004] Existing gas-carbon cogeneration devices generally use external dust removal systems to purify the generated gases, such as cyclone dust collectors, bag dust collectors or wet scrubbers. Since the filtration system is an independently set external device, the overall equipment layout is complex, the floor space is large, and the gas transmission path is long, which easily forms dust deposits in the pipeline, increasing the risk of blockage. External dust removal devices are difficult to respond to changes in the gas composition and flow rate inside the carbonization furnace in real time. In particular, the capture efficiency of fine dust is low, which easily causes frequent blockage of subsequent purification systems, affecting the continuous and stable operation of the equipment. Carbonized dust contains a certain proportion of fixed carbon components, and existing devices find it difficult to recycle and reuse dust. Summary of the Invention

[0005] This application aims to address at least one of the technical issues in the prior art, namely that the filtration system is a separate external device, resulting in a complex overall equipment layout, a large footprint, and a long gas transmission path, which easily leads to dust deposition in the pipeline. To this end, this application proposes a biomass gas-char cogeneration device for agricultural and forestry waste.

[0006] To achieve the above objectives, the specific technical solution of the present invention is as follows: a biomass gas-char cogeneration device for agricultural and forestry wastes, comprising a supporting base, a feed box fixedly connected to the top of the supporting base, a discharge box fixedly connected to the top of the supporting base, and further comprising:

[0007] A carbonization mechanism is provided on the top of the supporting base, and the carbonization mechanism includes a driving motor fixedly connected to the side wall of the supporting base, an output end of the driving motor is fixedly connected to a driving gear, a side wall of the driving gear is meshedly connected to a driven ring gear, and an inner wall of the driven ring gear is fixedly connected to a carbonization reaction cylinder;

[0008] A recovery mechanism is provided on the outside of the supporting base, and the recovery mechanism includes a recovery pipe connected to the top of the discharge box. A smoke filtering mechanism is provided inside the discharge box, and the smoke filtering mechanism includes a filter box fixedly connected to the outer wall of the recovery pipe. The outer surface of the filter box is provided with a cleaning mechanism.

[0009] Preferably, the carbonization mechanism also includes a conveying plate fixedly connected to the inner wall of the carbonization reaction tube, the outer wall of the carbonization reaction tube is fixedly connected to a carrying ring, the outer wall of the carrying ring is contacted with a roller, the bottom of the roller is fixedly connected to the top of the carrying base, the outer wall of the carbonization reaction tube is rotatably connected to the carbonization furnace, the side wall of the carbonization furnace is fixedly connected to the inner wall of the carrying base, and the side wall of the carbonization furnace is connected to a burner.

[0010] Preferably, the recovery mechanism also includes a condensation tower fixedly connected to the outer wall of the recovery pipe, the outer wall of the condensation tower is connected to an intake pipe, the end of the intake pipe away from the condensation tower is fixedly connected to a variable frequency induced draft fan, the exhaust end of the variable frequency induced draft fan is fixedly connected to a gas storage tank, the outer wall of the gas storage tank is fixedly connected to a valve-controlled pipeline, one end of the valve-controlled pipeline is fixedly connected to a gas supply pipe, the outer wall of the gas supply pipe is connected to an exhaust combustion pipe, the exhaust combustion pipe passes through the side wall of the carbonization furnace and extends to the inside.

[0011] Preferably, the smoke filtering mechanism also includes a convex slide rail fixedly connected to the inner wall of the filter box, the outer surface of the convex slide rail is slidably connected to a heat-resistant filter plate, the side wall of the heat-resistant filter plate is fixedly connected to a hinge, the outer wall of the hinge is rotatably connected to a pull rod, the end of the pull rod away from the hinge is rotatably connected to a lifting frame, the interior of the lifting frame is slidably connected to a Z-shaped guide rod, and both ends of the Z-shaped guide rod pass through the inner wall of the filter box and extend to the outside.

[0012] Preferably, a positioning circular plate is fixedly connected to the outer wall of the Z-shaped guide rod, a return spring is fixedly connected to the outer surface of the positioning circular plate, and one end of the return spring away from the positioning circular plate is fixedly connected to the inner wall of the filter box.

[0013] Preferably, the left end of the Z-shaped guide rod is fixedly connected to a contact rod, the inner wall of the carbonization reaction cylinder is fixedly connected to a fixing frame, the side wall of the fixing frame is fixedly connected to a touch plate, and the outer surface of the touch plate is arranged in contact with the outer wall of the contact rod.

[0014] Preferably, the cleaning mechanism includes an air collecting box fixedly connected to the side wall of the filter box, and an air intake pipe is provided on the top of the air collecting box. One end of the air intake pipe passes through the side wall of the filter box and extends to the inside, and the end of the air intake pipe away from the air collecting box is fixedly connected to a one-way valve.

[0015] Preferably, the inner wall of the air collecting box is slidably connected to an extrusion plug, the side wall of the extrusion plug is fixedly connected to a connecting spring, the end of the connecting spring away from the extrusion plug is fixedly connected to the side wall of the filter box, and the side wall of the extrusion plug is fixedly connected to the right end of the Z-shaped guide rod.

[0016] Preferably, an exhaust pipe is provided in communication with the side wall of the extrusion plug, and one end of the exhaust pipe is fixedly connected to a nozzle pipe.

[0017] The beneficial effects of the present invention are:

[0018] In this agricultural and forestry waste biomass gas-char cogeneration device, the carbonization reaction cylinder rotates synchronously with the contact plate driven by a fixed frame. When the contact plate rotates to a contact position with the contact rod, it pushes the contact rod in a set direction. The contact rod further drives the movement of the connected Z-shaped guide rod. Because the Z-shaped guide rod is equipped with a guide structure and a lifting frame, its movement drives the lifting frame downward in the vertical direction. The lifting frame is connected to the two heat-resistant filter plates through a pull rod. As the lifting frame moves downward, the pull rod pulls the two heat-resistant filter plates closer to each other, thereby compressing the filter channel space; when the touch plate is out of contact with the contact rod, under the action of the reset spring, the Z-shaped guide rod returns to its original position, driving the lifting frame to rise, and the two heat-resistant filter plates are restored to their initial spacing through the pull rod. This reciprocating motion process causes the heat-resistant filter plate to produce a periodic vibration effect, causing the dust particles attached to its surface to fall off due to vibration, fall into the collection area below and be discharged through the recovery pipe, thereby realizing the automatic cleaning function of the heat-resistant filter plate, avoiding the problem that traditional filter devices need to be shut down for cleaning. This structure can directly complete the preliminary separation of dust in the carbonization device body, and has the function of dust collection and reuse, so as to improve the operating efficiency, environmental protection performance and comprehensive resource utilization rate of the entire system.

[0019] 2. In the agricultural and forestry waste biomass gas-charcoal cogeneration device, when the Z-shaped guide rod and the contact rod are displaced due to the push of the touch plate, they synchronously drive the connecting parts to pull the extrusion plug, so that the extrusion plug moves inward in the gas collecting box, compressing the gas inside the gas collecting box. The compressed gas is transported to the nozzle pipe through the exhaust pipe, and the nozzle pipe performs directionally spraying on the surface of the heat-resistant filter plate. The high-speed airflow impacts the surface of the heat-resistant filter plate, which can further remove the attached fine dust particles and enhance the mechanical vibration cleaning effect. The ejected gas can locally cool the heat-resistant filter plate in a high-temperature state to prevent it from deformation or failure due to long-term high-temperature operation, thereby extending its service life.

[0020] 3. In the agricultural and forestry waste biomass gas-charcoal cogeneration device, the fixed frame drives the annular guide plate to rotate synchronously. When the L-shaped guide rod slides along the annular groove on the annular guide plate, the sealing plate does not contact the fixed ring. At this time, the recovery pipe is in a connected state, and the flue gas generated by the carbonization reaction can be discharged smoothly through the recovery pipe and enter the subsequent treatment system. When the L-shaped guide rod enters the sealing groove from the annular groove, its movement path changes, driving the sealing plate to move inward and tightly fit the top of the fixed ring, thereby achieving a sealed blockage of the filter box outlet end. At this time, a relatively closed space is formed inside the filter box. In this state, with the reciprocating motion of the heat-resistant filter plate, the gas inside the filter box will be periodically compressed and expanded. The compressed gas flows in the opposite direction through the micropores inside the heat-resistant filter plate, that is, it is ejected from the inside of the heat-resistant filter plate to the outside, achieving backwash cleaning of the micropores of the heat-resistant filter plate, removing fine dust particles that block the micropores, and restoring the filtration efficiency; no disassembly for cleaning is required, and online automatic cleaning is achieved; the filtration stability and service life are improved, and the maintenance frequency is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a cross-sectional view of the overall structure of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the carbonization mechanism of the present invention;

[0025] Figure 4 This is a schematic structural diagram of the recycling mechanism of the present invention;

[0026] Figure 5It is a schematic diagram of the filter box structure of the present invention;

[0027] Figure 6 This is a schematic diagram of the touch panel structure of the present invention;

[0028] Figure 7 This is a schematic structural diagram of the smoke filtering mechanism of the present invention;

[0029] Figure 8 It is a schematic structural diagram of the cleaning mechanism of the present invention;

[0030] Figure 9 This is a cross-sectional view of the recovery pipe structure of the present invention;

[0031] Figure 10 Schematic diagram of the structure of the annular guide plate of the present invention;

[0032] Figure 11 For the present invention Figure 10 A magnified view of the structure at center A.

[0033] Explanation of the markings in the figure: 101, bearing base; 102, feed box; 103, discharge box; 2, carbonization mechanism; 201, drive motor; 202, driving gear; 203, driven ring gear; 204, carbonization reaction cylinder; 205, conveyor plate; 206, bearing ring; 207, roller; 208, carbonization furnace; 209, burner; 3, recovery mechanism; 301, recovery pipe; 302, condensation tower; 303, suction pipe; 304, variable frequency induced draft fan; 305, gas storage tank; 306, valve-controlled pipeline; 307, gas pipeline; 308, exhaust combustion pipe; 4, flue gas filtering mechanism; 401, filter box; 402, convex slide rail; 403, durable Hot filter plate; 404, hinge; 405, pull rod; 406, lifting frame; 407, Z-shaped guide rod; 408, positioning circular plate; 409, return spring; 410, contact rod; 41, fixing frame; 42, touch plate; 5, cleaning mechanism; 501, air collecting box; 502, suction pipe; 503, one-way valve; 504, extrusion plug; 54, connecting spring; 505, exhaust pipe; 506, nozzle pipe; 6, blocking mechanism; 601, fixing ring; 602, sliding rod; 603, blocking plate; 604, slide groove; 605, sealing groove plate; 606, L-shaped guide rod; 607, annular guide plate; 608, annular slide groove; 609, blocking groove. DETAILED DESCRIPTION

[0034] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] like Figures 1 to 8As shown, the agricultural and forestry waste biomass gas-char cogeneration device provided in an embodiment of the present invention includes a supporting base 101, a feed box 102 is fixedly connected to the top of the supporting base 101, and a discharge box 103 is fixedly connected to the top of the supporting base 101.

[0036] A carbonization mechanism 2 is provided on the top of the supporting base 101. The carbonization mechanism 2 includes a driving motor 201 fixedly connected to the side wall of the supporting base 101. The output end of the driving motor 201 is fixedly connected to a driving gear 202. The side wall of the driving gear 202 is meshed with a driven ring gear 203. The inner wall of the driven ring gear 203 is fixedly connected to a carbonization reaction cylinder 204. This is arranged so that the driving motor 201 drives the carbonization reaction cylinder 204 to rotate through the driving gear 202 and the driven ring gear 203. The carbonization mechanism 2 also includes a fixed connection The conveying plate 205 is on the inner wall of the carbonization reaction tube 204, and the outer wall of the carbonization reaction tube 204 is fixedly connected to the supporting ring 206, and the outer wall of the supporting ring 206 is in contact with a roller 207, and the bottom of the roller 207 is fixedly connected to the top of the supporting base 101. The outer wall of the carbonization reaction tube 204 is rotatably connected to the carbonization furnace 208, and the side wall of the carbonization furnace 208 is fixedly connected to the inner wall of the supporting base 101. The side wall of the carbonization furnace 208 is connected to the burner 209. This arrangement is for the burner 209 to externally heat the carbonization reaction tube 204.

[0037] A recovery mechanism 3 is provided on the outside of the supporting base 101. The recovery mechanism 3 includes a recovery pipe 301 connected to the top of the discharge box 103. The recovery mechanism 3 also includes a condensation tower 302 fixedly connected to the outer wall of the recovery pipe 301. The outer wall of the condensation tower 302 is connected to an intake pipe 303. The end of the intake pipe 303 away from the condensation tower 302 is fixedly connected to a variable frequency induced draft fan 304. The variable frequency induced draft fan 304 dynamically adjusts the speed to match the change in gas production rate of the carbonization reaction tube 204. The exhaust end of the variable frequency induced draft fan 304 is fixedly connected to a gas storage tank 305. The outer wall of the gas storage tank 305 is fixedly connected to a valve-controlled pipe 306. One end of the valve-controlled pipe 306 is fixedly connected to a gas supply pipe 307. The outer wall of the gas supply pipe 307 is connected to an exhaust combustion pipe 308. The exhaust combustion pipe 308 passes through the side wall of the carbonization furnace 208 and extends to the inside.

[0038] A flue gas filtering mechanism 4 is provided inside the discharge box 103, and the flue gas filtering mechanism 4 includes a filter box 401 fixedly connected to the outer wall of the recovery pipe 301, and the flue gas filtering mechanism 4 also includes a convex slide rail 402 fixedly connected to the inner wall of the filter box 401, and the outer surface of the convex slide rail 402 is slidably connected to a heat-resistant filter plate 403, and the side wall of the heat-resistant filter plate 403 is fixedly connected to a hinge 404, and the outer wall of the hinge 404 is rotatably connected to a pull rod 405, and the end of the pull rod 405 away from the hinge 404 is rotatably connected to a lifting frame 406, and the interior of the lifting frame 406 is slidably connected to a Z-shaped guide rod 407, and both ends of the Z-shaped guide rod 407 pass through the inner wall of the filter box 401 and extend to the outside.

[0039] The outer wall of the Z-shaped guide rod 407 is fixedly connected to a positioning circular plate 408, and the outer surface of the positioning circular plate 408 is fixedly connected to a return spring 409. The end of the return spring 409 away from the positioning circular plate 408 is fixedly connected to the inner wall of the filter box 401, and the left end of the Z-shaped guide rod 407 is fixedly connected to a contact rod 410. The inner wall of the carbonization reaction tube 204 is fixedly connected to a fixing frame 41, and the side wall of the fixing frame 41 is fixedly connected to a touch plate 42. The outer surface of the touch plate 42 is arranged to contact the outer wall of the contact rod 410. This arrangement is to enable the carbonization reaction tube 204 to drive the touch plate 42 to rotate synchronously through the fixing frame 41. When the touch plate 42 rotates to the contact position with the contact rod 410, it pushes the contact rod 410 to move along the set direction.

[0040] The outer surface of the filter box 401 is provided with a cleaning mechanism 5, which includes an air collecting box 501 fixedly connected to the side wall of the filter box 401, and an air intake pipe 502 is connected to the top of the air collecting box 501. One end of the air intake pipe 502 passes through the side wall of the filter box 401 and extends to the inside. The end of the air intake pipe 502 away from the air collecting box 501 is fixedly connected to a one-way valve 503. The inner wall of the air collecting box 501 is slidably connected to an extrusion plug 504. The extrusion plug 504 A connecting spring 54 is fixedly connected to the side wall of the filter box 401. The end of the connecting spring 54, away from the squeeze plug 504, is fixedly connected to the side wall of the filter box 401. The side wall of the squeeze plug 504 is fixedly connected to the right end of the Z-shaped guide rod 407. An exhaust pipe 505 is provided in communication with the side wall of the squeeze plug 504. One end of the exhaust pipe 505 is fixedly connected to a nozzle pipe 506. This arrangement allows the squeeze plug 504 to move inward within the gas collecting box 501, compressing the gas inside. The compressed gas is transported through the exhaust pipe 505 to the nozzle pipe 506, which sprays the surface of the heat-resistant filter plate 403 with a targeted spray. When the Z-shaped guide rod 407 is reset, the squeeze plug 504 retracts, creating a negative pressure inside the gas collecting box 501. At this point, clean gas from the external filter box 401 enters the gas collecting box 501 through the one-way valve 503 and the intake pipe 502 for gas replenishment and storage, ready for the next spray operation.

[0041] like Figures 9 to 11 As shown, existing filtration systems usually do not have the ability to periodically switch the flue gas circulation state, resulting in the inability to clean and maintain the filter elements without interrupting operation, easy clogging, and difficult cleaning: during long-term use, the microporous structure of the heat-resistant filter plate 403 is easily clogged by dust, resulting in a decrease in filtration efficiency and even affecting the gas circulation and operational stability of the entire system; and traditional cleaning methods mostly rely on manual disassembly or external cleaning equipment, which are complicated to operate and inefficient. The inner wall of the recovery pipe 301 is provided with a blocking mechanism 6, which includes a fixed ring 601 fixedly connected to the inner wall of the recovery pipe 301, a sliding rod 602 fixedly connected to the top of the fixed ring 601, a blocking plate 603 slidably connected to the outer wall of the sliding rod 602, a sliding groove 604 is provided on the outer wall of the recovery pipe 301, the inner wall of the sliding groove 604 is slidably connected to the side wall of the blocking plate 603, a sealing groove plate 605 is fixedly connected to the outer surface of the blocking plate 603, an L-shaped guide rod 606 is fixedly connected to the bottom of the blocking plate 603, an annular guide plate 607 is slidably connected to the outer wall of the L-shaped guide rod 606, a side wall of the annular guide plate 607 is fixedly connected to the outer surface of the fixed frame 41, an annular sliding groove 608 is provided on the side wall of the annular guide plate 607, a blocking groove 609 is provided on the side wall of the blocking groove 609 is connected to the annular slide 608. This is so that when the L-shaped guide rod 606 slides along the annular slide 608 on the annular guide plate 607, the sealing plate 603 does not contact the fixed ring 601. At this time, the recovery pipe 301 is in a connected state, and the flue gas generated by the carbonization reaction can be discharged smoothly through the recovery pipe 301 and enter the subsequent treatment system. When the L-shaped guide rod 606 enters the sealing groove 609 from the annular slide 608, its movement path changes, driving the sealing plate 603 to move inward and tightly fit the top of the fixed ring 601, thereby achieving a sealed blockage of the outlet end of the filter box 401. At this time, a relatively closed space is formed inside the filter box 401. In this state, with the reciprocating motion of the heat-resistant filter plate 403, the gas inside the filter box 401 will be periodically compressed and expanded. The compressed gas flows in the reverse direction through the micropores inside the heat-resistant filter plate 403 , that is, it is ejected from the inside of the heat-resistant filter plate 403 to the outside, thereby achieving backwash cleaning of the micropores of the heat-resistant filter plate 403 .

[0042] The operating principle of the agricultural and forestry waste biomass gas-to-charcoal cogeneration device: After undergoing preliminary heating, the biomass feedstock passes through the feed box 102 and enters the carbonization reaction tube 204. At this point, the drive motor 201 is activated, which drives the carbonization reaction tube 204 to rotate via the drive gear 202, uniformly heating the material within the tube and gradually initiating a pyrolysis reaction. The rotation of the carbonization reaction tube 204 not only improves the uniformity of heating the material but also creates an axial propulsion effect through the internal conveyor plate 205, enabling continuous propulsion and movement of the material within the tube. Simultaneously, the burner 209 is activated to externally heat the carbonization reaction tube 204, ensuring that the heat source is precisely targeted to the carbonization area and preventing heat loss, thereby creating a stable high-temperature pyrolysis environment within the reaction tube. In this environment, the biomass feedstock undergoes thermal decomposition, generating combustible gases and solid charcoal products. The resulting gas products undergo preliminary purification through the flue gas filter mechanism 4 to remove impurities such as dust particles. The purified gas enters the recovery pipe 301 and then flows into the condensation tower 302, where the temperature difference effect is used to achieve preliminary cooling and liquefaction separation of the gaseous products, further improving the gas quality. In order to further achieve effective collection and utilization of gas, the system is equipped with a variable frequency induced draft fan 304 to transport the cooled combustible gas to the gas storage tank 305 for temporary storage. The gas storage tank 305 is provided with a valve-controlled pipeline 306. By adjusting the valve opening, the diversion ratio of the combustible gas can be flexibly controlled. Under the premise of ensuring the stability of the gas supply, the surplus gas is guided to the exhaust combustion pipe 308 through the gas pipe 307. After the exhaust combustion pipe 308 performs a secondary purification treatment on the gas, the purified combustible gas is returned to the combustion area for use as auxiliary fuel, realizing closed-loop recycling of energy, significantly improving energy utilization and reducing emission pollution;

[0043] The carbonization reaction cylinder 204 rotates synchronously with the contact plate 42 through the fixed frame 41. When the contact plate 42 rotates to a position of contact with the contact rod 410, it pushes the contact rod 410 in a set direction. The contact rod 410 further drives the movement of the Z-shaped guide rod 407 connected to it. Because the Z-shaped guide rod 407 is equipped with a guide structure to cooperate with the lifting frame 406, its movement causes the lifting frame 406 to descend vertically. The lifting frame 406 is connected to the two heat-resistant filter plates 403 via the tie rod 405. As the lifting frame 406 moves downward, the pull rod 405 pulls the two heat-resistant filter plates 403 closer to each other, thereby compressing the filter channel space; when the contact plate 42 is out of contact with the contact rod 410, under the action of the return spring 409, the Z-shaped guide rod 407 returns to its original position, driving the lifting frame 406 to rise, and the two heat-resistant filter plates 403 are restored to their initial spacing through the pull rod 405. This reciprocating motion process causes the heat-resistant filter plates 403 to produce a periodic vibration effect, causing the dust particles attached to their surfaces to fall off due to vibration, fall into the collection area below and be discharged through the recovery pipe 301, thereby realizing the automatic cleaning function of the heat-resistant filter plates 403, avoiding the problem that traditional filter devices need to be shut down for cleaning;

[0044] When the Z-shaped guide rod 407 and the contact rod 410 are displaced due to the push of the contact plate 42, they synchronously drive the connecting parts to pull the extrusion plug 504, causing the extrusion plug 504 to move inward in the gas collecting box 501, compressing the gas inside the gas collecting box 501. The compressed gas is transported to the nozzle pipe 506 through the exhaust pipe 505, and the nozzle pipe 506 performs a directional jet to the surface of the heat-resistant filter plate 403. The high-speed airflow impacts the surface of the heat-resistant filter plate 403, which can further remove the attached fine dust particles and enhance the mechanical vibration cleaning effect. The ejected gas can locally cool the heat-resistant filter plate 403 in a high-temperature state, preventing it from deformation or failure due to long-term high-temperature operation, thereby extending its service life. When the Z-shaped guide rod 407 is reset, the extrusion plug 504 retreats, forming a negative pressure inside the gas collecting box 501. At this time, the clean gas from the external filter box 401 enters the gas collecting box 501 through the one-way valve 503 and the suction pipe 502 for gas replenishment and storage, preparing for the next jet action;

[0045] The fixed frame 41 drives the annular guide plate 607 to rotate synchronously. When the L-shaped guide rod 606 slides along the annular groove 608 on the annular guide plate 607, the blocking plate 603 does not contact the fixed ring 601. At this time, the recovery pipe 301 is in a connected state, and the flue gas generated by the carbonization reaction can be smoothly discharged through the recovery pipe 301 and enter the subsequent treatment system. When the L-shaped guide rod 606 enters the blocking groove 609 from the annular groove 608, its movement path changes, driving the blocking plate 603 to move inward and tightly fit the top of the fixed ring 601, thereby achieving a sealed blockage at the outlet end of the filter box 401. At this time, a relatively closed space is formed inside the filter box 401. In this state, the reciprocating motion of the heat-resistant filter plate 403 will periodically compress and expand the gas inside the filter box 401. The compressed gas flows in the reverse direction through the micropores inside the heat-resistant filter plate 403, that is, it is ejected from the inside of the heat-resistant filter plate 403 to the outside, achieving backwash cleaning of the micropores of the heat-resistant filter plate 403, removing the fine dust particles that clog the micropores, and restoring the filtration efficiency; no disassembly and cleaning is required, and online automatic cleaning is achieved; the filtration stability and service life are improved, and the maintenance frequency is reduced.

[0046] It should be noted that the specific models and specifications of the drive motor 201, burner 209, condensing tower 302, variable frequency induced draft fan 304 and heat-resistant filter plate 403 need to be selected and determined based on the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be repeated in detail.

[0047] The driving motor 201, the burner 209, the condensing tower 302, the variable frequency induced draft fan 304 and the heat-resistant filter plate 403 and their principles are clear to those skilled in the art and will not be described in detail here.

[0048] It will be understood that the present invention is described by way of some embodiments, and it will be appreciated by those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to suit specific circumstances and materials without departing from the spirit and scope of the present invention.

Claims

1. A biomass gas-char cogeneration device for agricultural and forestry waste, comprising a supporting base, a feed box fixedly connected to the top of the supporting base, and a discharge box fixedly connected to the top of the supporting base, characterized in that , also includes: A carbonization mechanism is provided on the top of the supporting base, and the carbonization mechanism includes a driving motor fixedly connected to the side wall of the supporting base, an output end of the driving motor is fixedly connected to a driving gear, a side wall of the driving gear is meshedly connected to a driven ring gear, and an inner wall of the driven ring gear is fixedly connected to a carbonization reaction cylinder; The outside of the supporting base is provided with a recovery mechanism, and the recovery mechanism includes a recovery pipe connected to the top of the discharge box, and a smoke filter mechanism is provided inside the discharge box, and the smoke filter mechanism includes a filter box fixedly connected to the outer wall of the recovery pipe, and a cleaning mechanism is provided on the outer surface of the filter box, and the smoke filter mechanism also includes a convex slide rail fixedly connected to the inner wall of the filter box, and the outer surface of the convex slide rail is slidably connected to the heat-resistant filter plate, and the side wall of the heat-resistant filter plate is fixedly connected to the hinge, and the outer wall of the hinge is rotatably connected to the pull rod, and the end of the pull rod away from the hinge is rotatably connected to the lifting frame, and the interior of the lifting frame is slidably connected to a Z-shaped guide rod, and both ends of the Z-shaped guide rod pass through the inner wall of the filter box and extend to the outside, and the lifting frame The two heat-resistant filter plates are connected by a pull rod. As the lifting frame moves downward, the pull rod pulls the two heat-resistant filter plates closer to each other, thereby compressing the filter channel space. The inner wall of the recovery pipe is provided with a sealing mechanism, which includes a fixed ring fixedly connected to the inner wall of the recovery pipe, the top of the fixed ring is fixedly connected to a sliding rod, the outer wall of the sliding rod is slidably connected to the sealing plate, the outer wall of the recovery pipe is provided with a sliding groove, the inner wall of the sliding groove is slidably connected to the side wall of the sealing plate, the outer surface of the sealing plate is fixedly connected to the sealing groove plate, the bottom of the sealing plate is fixedly connected to an L-shaped guide rod, the outer wall of the L-shaped guide rod is slidably connected to an annular guide plate, the side wall of the annular guide plate is fixedly connected to the outer surface of the fixed frame, the side wall of the annular guide plate is provided with an annular sliding groove, and the side wall of the annular guide plate is provided with a sealing groove.

2. The agricultural and forestry waste biomass gas-char cogeneration device according to claim 1, characterized in that: The carbonization mechanism also includes a conveying plate fixedly connected to the inner wall of the carbonization reaction tube, the outer wall of the carbonization reaction tube is fixedly connected to a carrying ring, the outer wall of the carrying ring is contacted with a roller, the bottom of the roller is fixedly connected to the top of the carrying base, the outer wall of the carbonization reaction tube is rotatably connected to the carbonization furnace, the side wall of the carbonization furnace is fixedly connected to the inner wall of the carrying base, and the side wall of the carbonization furnace is connected to a burner.

3. The agricultural and forestry waste biomass gas-char cogeneration device according to claim 2, characterized in that: The recovery mechanism also includes a condensation tower fixedly connected to the outer wall of the recovery pipe, the outer wall of the condensation tower is connected to an intake pipe, the end of the intake pipe away from the condensation tower is fixedly connected to a variable frequency induced draft fan, the exhaust end of the variable frequency induced draft fan is fixedly connected to a gas storage tank, the outer wall of the gas storage tank is fixedly connected to a valve-controlled pipeline, one end of the valve-controlled pipeline is fixedly connected to a gas supply pipe, the outer wall of the gas supply pipe is connected to an exhaust combustion pipe, the exhaust combustion pipe passes through the side wall of the carbonization furnace and extends to the inside.

4. The agricultural and forestry waste biomass gas-char cogeneration device according to claim 3, characterized in that: The outer wall of the Z-shaped guide rod is fixedly connected to a positioning circular plate, the outer surface of the positioning circular plate is fixedly connected to a return spring, and one end of the return spring away from the positioning circular plate is fixedly connected to the inner wall of the filter box.

5. The agricultural and forestry waste biomass gas-char cogeneration device according to claim 4, characterized in that: The left end of the Z-shaped guide rod is fixedly connected to a contact rod, the inner wall of the carbonization reaction cylinder is fixedly connected to a fixing frame, the side wall of the fixing frame is fixedly connected to a touch plate, and the outer surface of the touch plate is arranged in contact with the outer wall of the contact rod.

6. The agricultural and forestry waste biomass gas-char cogeneration device according to claim 1, characterized in that: The cleaning mechanism includes an air collecting box fixedly connected to the side wall of the filter box, and an air intake pipe is provided on the top of the air collecting box. One end of the air intake pipe passes through the side wall of the filter box and extends to the inside, and the end of the air intake pipe away from the air collecting box is fixedly connected to a one-way valve.

7. The agricultural and forestry waste biomass gas-char cogeneration device according to claim 6, characterized in that: The inner wall of the air collecting box is slidably connected to an extrusion plug, the side wall of the extrusion plug is fixedly connected to a connecting spring, the end of the connecting spring away from the extrusion plug is fixedly connected to the side wall of the filter box, and the side wall of the extrusion plug is fixedly connected to the right end of the Z-shaped guide rod.

8. The agricultural and forestry waste biomass gas-char cogeneration device according to claim 7, characterized in that: An exhaust pipe is provided in communication with the side wall of the extrusion plug, and one end of the exhaust pipe is fixedly connected to a nozzle pipe.

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