A stirring device used in a high-temperature biomass gasification furnace

Abstract

The present application relates to the technical field of biomass gasification furnace, and discloses a stirring device used in high-temperature biomass gasification furnace, which comprises a gasification furnace, a grate is fixedly connected to the bottom of the inner cavity of the gasification furnace, the inner cavity of the gasification furnace is divided into an upper processing cavity and a lower slag discharge cavity from the grate, a motor assembly and a water cooling circulation assembly are fixedly connected to the top end of the gasification furnace, the water cooling circulation assembly is provided with a cooling water output pipeline and a cooling water return pipeline, and a central pipe is movably sleeved on the top of the gasification furnace. The cooling water circulates in the stirring device, so that the stirring device can be used in the high-temperature environment of the gasification furnace. When the biomass raw material enters the gasification furnace through the flow guide pipe, the raw material falls to the middle part of the stirring device, part of the raw material falls to the middle part of the gasification furnace from the gap between the stirring pipes, the stirring pipes rotate rapidly and hit part of the raw material, so that the raw material is sent to the position of the furnace wall, and the furnace charge is uniformly distributed.

Description

Technical Field

[0001] This invention relates to the field of biomass gasification furnace technology, specifically to a stirring device used in a high-temperature biomass gasification furnace. Background Technology

[0002] With the rapid development of industry and the high-speed advancement of urbanization, energy shortages and environmental pollution have become the focus of attention in today's society. The search for more extensive and cleaner energy sources has become particularly urgent. As a result, the application and promotion of biomass energy has made great strides in recent years.

[0003] Biomass gasification technology is a thermochemical conversion technology for biomass. Under conditions of incomplete combustion, the higher molecular weight organic hydrocarbon chains in biomass fuel undergo oxidation, reduction, pyrolysis, and drying to transform into lower molecular weight combustible gases such as CO, H2, and CH4. This process mainly involves the accumulation of biomass fuel in the gasifier, forming four layers from top to bottom. The first layer is a drying layer (temperature around 100°C to 250°C, primarily for drying the added material to prepare for the next layer of pyrolysis). The second layer is a pyrolysis layer (temperature around 300°C to 800°C, where the dried biomass fuel undergoes pyrolysis to produce carbon and hydrogen). The first layer contains substances such as carbon dioxide, water vapor, and carbon monoxide. The second layer is the reduction layer (temperature around 900°C, mainly in a low-oxygen environment, causing incomplete combustion of biomass raw materials, producing carbon monoxide and releasing heat; at the same time, carbon dioxide from the fourth oxidation layer will undergo a reduction reaction with the biomass raw materials to produce carbon monoxide, methane, hydrogen, water vapor, etc. In this process, the heated biomass raw materials also undergo cracking, causing the combustible gases in them to volatilize and become part of the fuel gas). The third layer is the reduction layer (temperature around 900°C, mainly in a low-oxygen environment, causing incomplete combustion of biomass raw materials, producing carbon monoxide, water, etc., while releasing a large amount of heat, providing heat for the reactions in the other layers).

[0004] If the biomass feedstock is unevenly distributed in the gasifier, it will cause uneven accumulation of biomass feedstock in the gasifier, resulting in pits in the accumulated feedstock. As a result, the pitted areas cannot form a standard four-layer distribution, which prevents normal incomplete combustion and gas production. Moreover, the air participating in the reaction is prone to escape from the pitted areas, causing the flame that is in the oxidation layer to move upward, ultimately destroying the entire reaction layer and leading to the failure of combustible gas production.

[0005] Meanwhile, due to the accumulation of biomass raw materials, the gaps between biomass are small. At this time, the gas or water vapor produced in each layer cannot pass quickly in the small gaps. In particular, the substances produced in the oxidation layer cannot flow quickly and fully between the biomass raw materials in the reduction layer, so that the biomass raw materials in the reduction layer cannot undergo a rapid and sufficient reduction reaction. Summary of the Invention

[0006] To address the shortcomings of existing gasifier stirring devices mentioned in the background art, this invention provides a stirring device for use in a high-temperature biomass gasifier. This device features cooling water flowing through the stirring device for temperature reduction; the stirring tube striking the raw material to ensure uniform distribution; a paddle striking a protrusion to vibrate the hollow tube; the hollow tube driving the extension tube to vibrate the surrounding raw material for uniform distribution; the vibration of the raw material causing the gap size to continuously change, allowing gas to pass through; the paddle reciprocating to deflect the raw material; cooling water impacting the rotating wheel to make it rotate; the rotation of the rotating wheel connecting the contacts to the forward and reverse circuits; the electromagnet being energized to apply attraction and repulsion to the piston; and the piston drawing in external gas under attraction and pressurizing and discharging the gas under repulsion. This invention solves the technical problems mentioned in the background art, such as uneven raw material distribution, raw material accumulation leading to small gaps, and the inability of gas to flow freely and quickly.

[0007] This invention provides the following technical solution: a stirring device used in a high-temperature biomass gasification furnace, comprising a gasification furnace, a grate fixedly connected to the bottom of the inner cavity of the gasification furnace, the inner cavity of the gasification furnace being divided into an upper processing chamber and a lower slag discharge chamber from the grate, a motor assembly and a water-cooled circulation assembly fixedly connected to the top of the gasification furnace, the water-cooled circulation assembly having a cooling water output pipe and a cooling water return pipe, a central pipe movably sleeved on the top of the gasification furnace, a return pipe fixedly sleeved on the outer side of the top of the central pipe, the top of the central pipe being fixedly connected to the output end of the motor assembly, and the central pipe being movably connected to the cooling water output pipe of the water-cooled circulation assembly. The return pipe is movably connected to the cooling water return pipe of the water-cooled circulation assembly. Four evenly distributed stirring pipes are fixedly connected to the bottom of the central pipe. A movable chamber is opened inside the stirring pipe. A valve port is opened between the inner cavity of the central pipe and the movable chamber. The inner cavity of the central pipe is connected to the movable chamber through the valve port. A support pipe is fixedly connected to the stirring pipe. The bottom end of the support pipe is connected to the movable chamber. The top end of the support pipe is connected to the inner cavity of the return pipe. An opening and closing device is provided in the valve port. A material feeding device is provided in the stirring pipe. A vibration device is provided below the central pipe. A driven device is provided on the central pipe. A suction device is provided inside the vibration device.

[0008] Preferably, a guide pipe is fixedly connected to the top of the gasifier, and the guide pipe is located at the bottom of the gasifier near the middle of the stirring tube.

[0009] Preferably, the opening and closing device includes a fixed rod fixedly connected to the wall of the valve cavity. The fixed rod is in an L shape as a whole. One end of the fixed rod is in a T shape. A valve core is movably sleeved on the part of the fixed rod parallel to the center line of the valve port. A sliding cavity is provided in the valve core. The T-shaped end of the fixed rod is located in the sliding cavity. The valve core is adapted to the valve port. <>

[0010] Preferably, the material feeding device includes an articulated ring evenly articulated at the bottom of the stirring tube. The top of the articulated ring is located in the movable cavity. The bottom of the articulated ring is located outside the stirring tube. A sealing ring is provided on the articulated ring. The articulated ring is in a Chinese character shape as a whole. The articulated ring is composed of three cylinders. A torsion spring is provided on the cylinder with a smaller diameter of the articulated ring. A pressure receiving plate is fixedly connected to the top of the articulated ring. The pressure receiving plate is located in the movable cavity. A dial is fixedly connected to the bottom of the articulated ring. The dial is located outside the stirring tube.

[0011] Preferably, the vibrating device includes a hollow tube I fixedly connected to the center of the top end of the grate. The top end of the hollow tube I is fixedly connected to a hollow tube II. Four evenly distributed extension tubes are fixedly connected to the outer sides of both the hollow tube I and the hollow tube II. Four evenly distributed convex blocks are fixedly connected to the outer side of the top of the hollow tube II. The circumferential surface of the convex block is inclined and has an arc chamfer. The surface of the convex block away from the hollow tube II is in an arc shape. The convex block is located at the bottom position of the dial.

[0012] Preferably, the driven device includes a transmission seat fixedly connected to the bottom of the center tube. A runner is movably connected in the transmission seat. The runner is divided into a runner blade and a rotating shaft. The rotating shaft is movably connected to the transmission seat. The frictional force at the movable connection between the rotating shaft and the transmission seat is large. A chamber for the runner to rotate is provided in the transmission seat. One-third of the part on the axis of the runner is located in the center tube. A contact is provided on the rotating shaft.

[0013] Preferably, symmetric circuit rings are fixedly sleeved in the transmission seat. The circuit rings are divided into symmetric forward current layers and reverse current layers. A current interruption layer is provided between the forward current layer and the reverse current layer. One of the circuit rings is electrically connected to a circuit wire. The forward current layer conveys forward current, and the reverse current layer conveys reverse current, and both are direct currents. <>

[0014] Preferably, the suction device includes an electromagnet fixedly connected to the top end of the inner cavity of the hollow tube II. A piston is movably sleeved in the inner cavity of the hollow tube II. A high-temperature resistant magnet is fixedly connected to the top end of the piston. The heat resistant temperature of the high-temperature resistant magnet is greater than 350 degrees. A limiting ring is fixedly sleeved in the middle of the inner cavity of the hollow tube II. The inner diameter value of the limiting ring is smaller than the diameter value of the piston. Dense exhaust holes are provided on both the hollow tube I and the extension tubes on the hollow tube I.

[0015] Preferably, an electric slip ring is fixedly connected to the top end of the hollow tube II, wherein one of the circuit rings is electrically connected to the electric slip ring, and the electromagnet is electrically connected to the electric slip ring.

[0016] The present invention has the following beneficial effects:

[0017] 1. This invention uses cooling water to circulate in the stirring device, enabling the stirring device to be used in the high-temperature environment of the gasifier. At the same time, when the biomass raw material enters the gasifier through the guide pipe, the raw material will fall towards the middle of the stirring tube. Some raw material will fall from the gap between the stirring tubes into the middle of the gasifier. The rapidly rotating stirring tube will hit some of the raw material, causing the raw material to be sent to the position of the furnace wall, thereby making the furnace material evenly distributed.

[0018] 2. This invention utilizes the rapid rotation of the stirring tube to cause the paddles near the central tube to strike the protrusion. The protrusion lifts the paddles, causing them to move away from the central tube. This causes the paddles, via the hinge ring, to move the pressure plate closer to the central tube. The pressure plate near the central tube pushes the valve core to block the valve port, cutting off the flow of cooling water in the movable chamber. This causes the torsion spring to rotate the hinge ring, deflecting other pressure plates towards the central tube. Simultaneously, the other paddles deflect away from the central tube. When the paddles near the central tube leave the protrusion, the force of the cooling water impacting the valve core is greater than the force of the pressure plate pressing on the valve core, causing the valve core to reopen the valve port. This allows cooling water to flow back into the movable chamber, pushing the pressure plate away from the central tube. This causes the hinge ring to rotate, and the spring stores energy, driving the paddles to deflect towards the central tube. This process repeats, allowing the paddles to rotate synchronously with the stirring tube while simultaneously moving back and forth, causing the paddles to move the surrounding raw materials, resulting in a uniform distribution of the materials.

[0019] 3. In this invention, the paddle intermittently strikes the protrusion during rapid rotation, causing the protrusion to vibrate the hollow tubes II and I due to the impact force. This, in turn, causes the extension tubes on the hollow tubes I and II to vibrate, shaking off the raw materials around the hollow tubes I, II, and extension tubes. The raw materials at higher positions are shaken off into the pit area, resulting in a rapid and uniform distribution of the raw materials. Simultaneously, the vibration of the raw materials causes the gaps between the accumulated materials to change continuously, allowing the gas to flow rapidly within these changing gaps, thus improving reaction efficiency.

[0020] 4. During the flow of cooling water in this invention, the impeller blades of the rotating wheel located in the central tube are impacted. Due to the large frictional force of the wheel axle, the rotating wheel rotates slowly. At the same time, when the cooling water flow is interrupted, the impeller blades are not impacted by the water flow, and the rotating wheel remains stationary (the central tube rotates rapidly, making the stationary time short). This allows the contacts to be in contact with the positive current layer for a long time, allowing the electromagnet to carry a positive current for a long time. This causes the electromagnet to attract the high-temperature resistant magnet, causing the piston to gradually rise. The surrounding gas is drawn into the hollow tube I through the exhaust hole on the extension tube located on the hollow tube I. When the contacts rotate to the reverse current layer, the electromagnet carries a reverse current, causing the electromagnet to exert a repulsive force on the high-temperature resistant magnet, causing the piston to press down rapidly. This causes the gas in the hollow tube I to be ejected outward under pressure, allowing the gas to pass quickly through the constantly changing raw materials through the gaps, ensuring full contact between the gas and the raw materials, and improving the reaction efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 3 This is a schematic diagram of the internal structure of the three-dimensional structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the internal structure of the hollow tube II of the present invention;

[0025] Figure 5 This is a schematic diagram of the internal structure of the stirring tube of the present invention;

[0026] Figure 6 This is a schematic diagram of the internal structure of the transmission base of the present invention;

[0027] Figure 7 This is a schematic diagram of the internal structure of the valve core of the present invention;

[0028] Figure 8 This is a schematic diagram of the circuit ring structure of the present invention.

[0029] In the diagram: 1. Gasifier; 2. Grate; 3. Processing chamber; 4. Slag discharge chamber; 5. Guide pipe; 6. Water-cooled circulation assembly; 7. Motor assembly.

[0030] In the diagram: 8. Central tube; 9. Return tube; 10. Stirring tube; 101. Support tube; 11. Movable chamber; 12. Valve port; 13. Valve core; 131. Fixed rod; 132. Sliding chamber; 14. Hinge ring; 15. Pressure plate; 16. Paddle; 17. Transmission seat; 18. Rotary wheel; 19. Electric slip ring; 20. Hollow tube I; 21. Hollow tube II; 22. Extension tube; 23. Protrusion; 24. Electromagnet; 25. Piston; 26. High-temperature resistant magnet; 27. Limiting ring; 28. Contact point; 29. ​​Circuit ring; 291. Current interruption layer; 292. Forward current layer; 293. Reverse current layer. Detailed Implementation

[0031] 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.

[0032] Please see Figure 1 A stirring device used in a high-temperature biomass gasification furnace includes a gasification furnace 1. A grate 2 is fixedly connected to the bottom of the inner cavity of the gasification furnace 1. The inner cavity of the gasification furnace 1 is divided into an upper processing chamber 3 and a lower slag discharge chamber 4 from the grate 2. An ignition device and an air input device can be added to the grate 2, and a DC power supply circuit is provided.

[0033] See Figure 1 A guide pipe 5 is fixedly connected to the top of the gasifier 1. The guide pipe 5 is located at the bottom of the gasifier 1 near the middle of the stirring pipe 10, so that the raw material falls towards the middle of the rotating stirring pipe 10. Some of the raw material falls into the center of the processing chamber 3 through the gap between adjacent stirring pipes 10, and some of the raw material is knocked to the outside of the processing chamber 3 by the stirring pipe 10, so that the raw material gradually accumulates on the grate 2. A motor assembly 7 and a water cooling circulation assembly 6 are fixedly connected to the top of the gasifier 1. The water cooling circulation assembly 6 is provided with a cooling water output pipe and a cooling water return pipe. The impact force of the cooling water is large enough to enable the cooling water to complete the circulation.

[0034] See Figures 1 to 3 , Figure 5 A central tube 8 is movably sleeved on the top of the gasifier 1. A return pipe 9 is fixedly sleeved on the outer side of the top of the central tube 8. The top of the central tube 8 is fixedly connected to the output end of the motor assembly 7. The central tube 8 is movably connected to the cooling water output pipe of the water-cooled circulation assembly 6, so that the central tube 8 can still receive cooling water during rotation. The return pipe 9 is movably connected to the cooling water return pipe of the water-cooled circulation assembly 6, so that the cooling water enters the stirring device from the central tube 8 and then flows back to the water-cooled circulation assembly 6 from the return pipe 9.

[0035] Refer to Figures 2 to 3 , Figure 5 , at the bottom of the central pipe 8, four evenly distributed stirring pipes 10 are fixedly connected. An activity cavity 11 is provided in the stirring pipe 10. A valve port 12 is provided between the inner cavity of the central pipe 8 and the activity cavity 11. The inner cavity of the central pipe 8 is connected to the activity cavity 11 through the valve port 12. A support pipe 101 is fixedly connected to the stirring pipe 10. The bottom end of the support pipe 101 is connected to the activity cavity 11, and the top end of the support pipe 101 is connected to the inner cavity of the return pipe 9, enabling cooling water to form a cooling water cycle through the central pipe 8, valve port 12, activity cavity 11, support pipe 101, return pipe 9, and the water cooling circulation assembly 6.

[0036] Refer to Figure 3 , Figure 5 , Figure 7 , a fixing rod 131 is fixedly connected to the wall of the valve port 12. The fixing rod 131 is in an L shape, and one end of the fixing rod 131 is in a T shape. A valve core 13 is movably sleeved on the part of the fixing rod 131 parallel to the center line of the valve port 12. A sliding cavity 132 is provided in the valve core 13. The end of the fixing rod 131 in a T shape is located in the sliding cavity 132. The valve core 13 is adapted to the valve port 12, enabling the valve core 13 to move linearly along the axial direction of the valve port 12 under the restriction of the fixing rod 131, so that the valve core 13 can close or open the valve port 12.

[0037] Refer to Figure 3 , Figure 5 , evenly distributed hinge rings 14 are hinged at the bottom of the stirring pipe 10. The top of the hinge ring 14 is located in the activity cavity 11, and the bottom of the hinge ring 14 is located outside the stirring pipe 10. A sealing ring is provided on the hinge ring 14, so that when the hinge ring 14 rotates, there will be no leakage of cooling water. The overall shape of the hinge ring 14 is in a Chinese character 'zhong' shape. The hinge ring 14 is cylindrical. A torsion spring is provided on the cylinder with a smaller diameter of the hinge ring 14, enabling the hinge ring 14 to store energy of the torsion spring when rotating, so that after the hinge ring loses external force, the torsion spring storing energy can drive it to rotate back.

[0038] Refer to Figure 3 , Figure 5A pressure plate 15 is fixedly connected to the top of the hinge ring 14. The pressure plate 15 is located in the movable cavity 11. When the cooling water impacts the pressure plate 15, the pressure plate 15 can deflect away from the central tube 8 with the hinge ring 14 as the center, causing the hinge ring 14 to rotate and the torsion spring to store energy. When the cooling water flow stops and no longer impacts the pressure plate 15, the torsion spring can drive the hinge ring 14 to reverse, causing the pressure plate 15 to deflect towards the central tube 8. A lever 16 is fixedly connected to the bottom of the hinge ring 14. The lever 16 is located outside the stirring tube 10. When the pressure plate 15 is impacted by the cooling water and deflects away from the central tube 8, the hinge ring 14 can synchronously drive the lever 16 to deflect closer to the central tube 8. When the hinge ring 14 reverses, the lever 16 can deflect away from the central tube 8, causing the lever 16 to deflect intermittently and move the surrounding raw materials, so that the raw materials are evenly distributed under the movement.

[0039] See Figures 1 to 4 A hollow tube I20 is fixedly connected to the top center of grate 2. The top center of grate 2 is not perforated to prevent air from directly entering the hollow tube I20. A hollow tube II21 is fixedly connected to the top of hollow tube I20. The diameter of hollow tube I20 is smaller than that of hollow tube II21. When hollow tube I20 is used as a support point, it is unstable due to its smaller diameter, which increases the vibration amplitude of hollow tube II21. Four evenly distributed extension tubes 22 are fixedly connected to the outer sides of hollow tube I20 and hollow tube II21. Hollow tube I20, hollow tube II21 and extension tubes 22 are all hollow.

[0040] See Figures 1 to 4 Four evenly distributed protrusions 23 are fixedly connected to the top outer side of the hollow tube II 21. The circumferential surface of the protrusions 23 is inclined and has an arc shape. The surface of the protrusions 23 away from the hollow tube II 21 is arc-shaped. The protrusions 23 are located at the bottom of the paddle 16. When the stirring tube 10 rotates rapidly, the paddle 16, which is close to the central tube 8 and biased towards the central tube 8, hits the protrusions 23, causing the protrusions 23 to vibrate. This causes the hollow tube II 21 to vibrate, which in turn causes the hollow tube I 20 to vibrate. The extension tube 22 vibrates synchronously, causing the surrounding raw materials to roll down under the vibration and into the pit, thus achieving a uniform distribution of the raw materials. During this process, the vibrating hollow tube I 20, hollow tube II 21, and extension tube 22 cause the size of the gap between the accumulated raw materials to change continuously under the vibration, allowing the generated gas to pass through the constantly changing gaps rapidly.

[0041] Simultaneously, the protrusion 23 will change the deflection direction of the paddle 16 that impacts the protrusion 23, causing the paddle 16 to deflect away from the central tube 8, causing the hinge ring 14 to reverse, causing the pressure plate 15 to deflect towards the central tube 8, causing the pressure plate 15 to impact the valve core 13, causing the valve core 13 to move and block the valve port 12, preventing cooling water from flowing into the movable chamber 11, cutting off the cooling water flow, and causing the pressure plate 15 of the movable chamber 11 to lose the impact of the cooling water, causing the energy storage torsion spring on the hinge ring 14 to drive the hinge ring 14 to reverse, causing the pressure plate 15 to deflect towards the central tube 8, causing the paddle 16 to deflect away from the central tube 8. Then, after the paddle 16 leaves the protrusion 23, the impact force of the cooling water on the valve core 13 causes the valve core 13 to open the valve port 12 again. This process repeats, so that the paddle 16 also performs a reciprocating paddle action when it rotates synchronously and rapidly with the stirring tube 10.

[0042] Example 2

[0043] Based on Example 1

[0044] See Figures 2 to 3 , Figures 5 to 6 A transmission seat 17 is fixedly connected to the bottom of the central tube 8. A rotating wheel 18 is movably connected inside the transmission seat 17. The rotating wheel 18 consists of a blade and a shaft. The shaft is movably connected to the transmission seat 17. The friction force at the movable connection between the shaft and the transmission seat 17 is large. A chamber for rotating wheel 18 is opened inside the transmission seat 17. One-third of the shaft of the rotating wheel 18 is located inside the central tube 8. A contact point 28 is provided on the shaft so that the cooling water impacts the blade on the rotating wheel 18 located inside the central tube 8, so that the rotating wheel 18 can rotate slowly. During the rapid rotation of the stirring tube 10, it can still provide enough time for the current to pass through.

[0045] See Figures 7 to 8A symmetrical circuit ring 29 is fixedly sleeved inside the transmission base 17. The circuit ring 29 is divided into a symmetrical forward current layer 292 and a reverse current layer 293. A current-breaking layer 291 is provided between the forward current layer 292 and the reverse current layer 293, so that when the contact 28 switches between the forward current layer 292 and the reverse current layer 293, it can first pass through the current-breaking layer 291 to avoid the problem of short circuit caused by the contact 28 simultaneously contacting the forward current layer 292 and the reverse current layer 293. One of the circuit rings 29 is electrically connected to the circuit line (it can be connected through an electric slip ring). The forward current layer 292 delivers forward current, and the contact 28 is in the forward current layer 292. Within the range of 2, current is passed through the slip ring 19 to the electromagnet 24, causing the electromagnet 24 to carry a positive current and attract the high-temperature magnet 26. The high-temperature magnet 26 drives the piston 25 to move upward, causing the exhaust port on the hollow tube I 20 and the extension tube 22 located on the hollow tube I 20 to draw in the surrounding gas. The reverse current layer 293 delivers a reverse current. When the contact 28 enters the reverse current layer 293, the electromagnet 24 carries a reverse current, causing the electromagnet 24 to exert a repulsive force on the high-temperature magnet 26, causing the piston 25 to press down, causing the gas in the hollow tube I 20 and the hollow tube II 21 to be sprayed from the exhaust port to the surrounding raw materials under pressure, and all of them are direct current.

[0046] See Figures 1 to 5 The top end of the hollow tube II 21 is fixedly connected to an electric slip ring 19, one of which is electrically connected to the electric slip ring 19, so that the circuit ring 29 can still maintain an electrical connection with the electromagnet 24 through the electric slip ring 19 during the rapid rotation of the central tube 8.

[0047] See figure Figures 1 to 4 An electromagnet 24 is fixedly connected to the top of the inner cavity of hollow tube II 21. The electromagnet 24 is electrically connected to the slip ring 19. A piston 25 is movably sleeved in the inner cavity of hollow tube II 21. A high-temperature resistant magnet 26 is fixedly connected to the top of piston 25. The heat resistance temperature of the high-temperature resistant magnet 26 is greater than 350 degrees. A limiting ring 27 is fixedly sleeved in the middle of the inner cavity of hollow tube II 21. The inner diameter of the limiting ring 27 is smaller than the diameter of piston 25, so that the limiting ring 27 restricts piston 25 from being pressed down too much, causing the high-temperature resistant magnet 26 to enter the area exceeding 350 degrees, resulting in demagnetization.

[0048] See Figure 1 to 1 Figure 4 Both the central tube I20 and the extension tube 22 located on the hollow tube I20 are provided with dense exhaust holes.

[0049] The method of use (working principle) of Embodiment 1 of the present invention is as follows:

[0050] First, the motor assembly 7 drives the central tube 8 to rotate rapidly, which in turn drives the stirring tube 10, support tube 101, and return tube 9 to rotate rapidly. At this time, the water-cooled circulation assembly 6 begins to supply cooling water to the central tube 8. After the cooling water passes through the central tube 8, stirring tube 10, support tube 101, and return tube 9, it flows back to the water-cooled circulation assembly 6. Then, the biomass raw material is fed into the processing chamber 3 through the guide tube 5, causing the raw material to fall towards the middle of the rapidly rotating stirring tube 10. Some of the raw material falls into the center of the processing chamber 3 through the gap between adjacent stirring tubes 10, while some of the raw material is knocked off the outside of the processing chamber 3 by the stirring tube 10. The raw material gradually accumulates on the grate 2. At this time, the accumulated raw material gradually forms an uneven state, causing some of the raw material to roll down the inclined surface into the pit.

[0051] Then, when the cooling water enters the movable chamber 11 inside the stirring tube 10, the cooling water first impacts the valve core 13, causing the valve core 13 to move away from the central tube 8, opening the valve port 12 and allowing the cooling water to enter the movable chamber 11. The cooling water then impacts the pressure plate 15 inside the movable chamber 11, causing the pressure plate 15 to deflect away from the central tube 8 with the hinge ring 14 as the center. This causes the hinge ring 14 to rotate under force, storing energy in the torsion spring on the hinge ring. At this time, the hinge ring 14 drives the paddle 16 to deflect towards the central tube 8. Then, during the rapid rotation of the stirring tube 10, the paddle 16, which is close to and deflects towards the central tube 8, strikes the protrusion 23, causing the paddle 16 at this point to move on the inclined side of the protrusion 23, deflecting away from the central tube 8. This causes the hinge ring 14 at this point to rotate. Reversing the direction causes the pressure plate 15 to deflect towards the central tube 8, causing it to strike the valve core 13. This causes the valve core 13 to move and block the valve port 12, preventing cooling water from flowing into the movable chamber 11. This cuts off the cooling water flow, causing the pressure plate 15 in the movable chamber 11 to lose the impact of the cooling water. The energy storage torsion spring on the hinge ring 14 causes the hinge ring 14 to reverse, causing the pressure plate 15 to deflect towards the central tube 8. This causes the paddle 16 to deflect away from the central tube 8. Then, after the paddle 16 leaves the protrusion 23, the impact of the cooling water on the valve core 13 causes the valve core 13 to open the valve port 12 again. This process repeats, causing the paddle 16 to perform a reciprocating paddle action while rotating synchronously and rapidly with the stirring tube 10. This causes the paddle 16 to paddle the nearby raw materials, causing them to roll into the pit.

[0052] Finally, when the paddle 16 rapidly strikes the protrusion 23, the protrusion 23 will vibrate, causing the hollow tube II 21 to vibrate, which in turn causes the hollow tube I 20 to vibrate, and the extension tube 22 to vibrate synchronously. This causes the surrounding raw materials to roll down under the vibration, resulting in a uniform distribution of the raw materials. Then, after the raw materials are fed in, air is introduced into the bottom of the accumulated raw materials. The bottom of the accumulated raw materials is ignited by the ignition device, causing the raw materials to undergo an oxidation reaction to generate various gases and release a large amount of heat. This causes the raw materials to gradually form an oxide layer, a reduction layer, a cracking layer, and a drying layer, thus producing combustible gases. During this process, the vibrating hollow tube I 20, hollow tube II 21, and extension tube 22 cause the gap size of the accumulated raw materials to change continuously under vibration, allowing the generated gas to pass through the constantly changing gaps rapidly, thus enabling the rapid production of combustible gases.

[0053] The method of use (working principle) of Embodiment 2 of the present invention is as follows:

[0054] First, the motor assembly 7 drives the central tube 8 to rotate rapidly, which in turn drives the stirring tube 10, support tube 101, and return tube 9 to rotate rapidly. At this time, the water-cooled circulation assembly 6 begins to supply cooling water to the central tube 8. After the cooling water passes through the central tube 8, stirring tube 10, support tube 101, and return tube 9, it flows back to the water-cooled circulation assembly 6. Then, the biomass raw material is fed into the processing chamber 3 through the guide tube 5, causing the raw material to fall towards the middle of the rapidly rotating stirring tube 10. Some of the raw material falls into the center of the processing chamber 3 through the gap between adjacent stirring tubes 10, while some of the raw material is knocked off the outside of the processing chamber 3 by the stirring tube 10. The raw material gradually accumulates on the grate 2. At this time, the accumulated raw material gradually forms an uneven state, causing some of the raw material to roll down the inclined surface into the pit.

[0055] Then, when the cooling water enters the movable chamber 11 inside the stirring tube 10, the cooling water will first impact the valve core 13, causing the valve core 13 to move away from the central tube 8, opening the valve port 12, allowing the cooling water to enter the movable chamber 11, and impacting the pressure plate 15 inside the movable chamber 11. This causes the pressure plate 15 to deflect away from the central tube 8 with the hinge ring 14 as the center, causing the hinge ring 14 to rotate under force, storing energy in the torsion spring on the hinge ring. At this time, the hinge ring 14 drives the lever 16 to deflect towards the central tube 8. During this process, the cooling water is in a flowing state, causing the cooling water to impact the rotating blades on the rotating wheel 18 located in the central tube 8, causing the rotating wheel 18 to rotate slowly. At this time, the contact 28 is within the range of the positive current layer 292, allowing the current to pass through the slip ring 19 to the electromagnet 24, causing the electromagnet 24 to be supplied with a positive current and attracting the high-temperature resistant magnet 26. The high-temperature resistant magnet 26 drives the piston 25 to move upward, causing the exhaust port on the hollow tube I 20 and the extension tube 22 located on the hollow tube I 20 to draw in the surrounding gas.

[0056] Next, as the stirring tube 10 rotates rapidly, the paddle 16, which is close to and biased towards the central tube 8, strikes the protrusion 23, causing the paddle 16 to move on the inclined side of the protrusion 23. This causes the paddle 16 to deflect away from the central tube 8, reversing the hinge ring 14 and causing the pressure plate 15 to deflect towards the central tube 8. The pressure plate 15 then strikes the valve core 13, causing the valve core 13 to move and block the valve port 12, preventing cooling water from flowing into the movable chamber 11. This interrupts the cooling water flow, depriving the pressure plate 15 of the impact of cooling water. The energy storage torsion spring on the hinge ring 14 causes the hinge ring 14 to reverse, deflecting the pressure plate 15 towards the central tube 8 and causing the paddle 16 to deflect away from the central tube 8. During this process, the cooling water stops flowing, and the impeller 18 stops rotating without being impacted. Then, at this point... After the paddle 16 leaves the protrusion 23, the impact force of the cooling water on the valve core 13 causes the valve core 13 to open the valve port 12 again. This process repeats, causing the paddle 16 to make a reciprocating paddle motion while it rotates synchronously and rapidly with the stirring tube 10. This causes the paddle 16 to paddle the nearby raw materials, making them roll into the pit. During this process, the rotating wheel 18 rotates slowly intermittently (due to the rapid rotation of the stirring tube 10, the interval between stops is short), keeping the contact point 28 within the positive current layer 292 for a long time. This causes the piston 25 to continuously rise and draw gas into the hollow tube I 20 and hollow tube II 21. When the contact point 28 enters the reverse current layer 293, the electromagnet 24 is energized with a reverse current, causing the electromagnet 24 to exert a repulsive force on the high-temperature magnet 26, which in turn causes the piston 25 to press down. This causes the gas in the hollow tube I 20 and hollow tube II 21 to be sprayed out of the exhaust port onto the surrounding raw materials under pressure.

[0057] Finally, when the paddle 16 rapidly strikes the protrusion 23, the protrusion 23 will vibrate, causing the hollow tube II 21 to vibrate, which in turn causes the hollow tube I 20 to vibrate, and the extension tube 22 to vibrate synchronously. This causes the surrounding raw materials to roll down under the vibration, resulting in a uniform distribution of the raw materials. Then, after the raw materials are fed in, air is introduced into the bottom of the accumulated raw materials. The bottom of the accumulated raw materials is ignited by the ignition device, causing the raw materials to undergo an oxidation reaction to generate various gases and release a large amount of heat. This causes the raw materials to gradually form an oxide layer, a reduction layer, a cracking layer, and a drying layer, thus producing combustible gases. During this process, the vibrating hollow tube I 20, hollow tube II 21, and extension tube 22 cause the gap size of the accumulated raw materials to change continuously under vibration. This allows the generated gases and the gases ejected from the exhaust port to pass quickly through the constantly changing gaps, thus enabling the rapid production of combustible gases.

[0058] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0059] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stirring device used in a high-temperature biomass gasification furnace, comprising a gasification furnace (1), wherein a grate (2) is fixedly connected to the bottom of the inner cavity of the gasification furnace (1), and the inner cavity of the gasification furnace (1) is divided from the grate (2) into an upper processing chamber (3) and a lower slag discharge chamber (4), characterized in that: The top end of the gasifier (1) is fixedly connected with a motor assembly (7) and a water cooling circulation assembly (6). The water cooling circulation assembly (6) is provided with a cooling water output pipe and a cooling water return pipe. The top of the gasifier (1) is movably sleeved with a central pipe (8). The outer side of the top of the central pipe (8) is fixedly sleeved with a return pipe (9). The top end of the central pipe (8) is fixedly connected with the output end of the motor assembly (7). The central pipe (8) is movably connected with the cooling water output pipe of the water cooling circulation assembly (6). The return pipe (9) is movably connected with the cooling water return pipe of the water cooling circulation assembly (6). Four uniformly distributed stirring pipes (10) are fixedly connected to the bottom of the central pipe (8). A support pipe (101) is fixedly connected to the stirring pipe (10). The top end of the support pipe (101) is connected to the inner cavity of the return pipe (9). An activity cavity (11) is formed in the stirring pipe (10). A valve port (12) is formed between the inner cavity of the central pipe (8) and the activity cavity (11). The inner cavity of the central pipe (8) is connected to the activity cavity (11) through the valve port (12). The bottom end of the support pipe (101) is connected to the activity cavity (11). An opening and closing device is arranged in the valve port (12). A material distributing device is arranged in the stirring pipe (10). A vibration device is arranged below the central pipe (8). A driven device is arranged on the central pipe (8). A suction device is arranged in the vibration device; The material distributing device includes a hinge ring (14) uniformly hinged to the bottom of the stirring pipe (10). The top of the hinge ring (14) is located in the activity cavity (11). The bottom of the hinge ring (14) is located outside the stirring pipe (10). A sealing ring is arranged on the hinge ring (14). The whole hinge ring (14) is in a Chinese character 'zhong' shape. The hinge ring (14) consists of three cylinders. A torsion spring is arranged on the cylinder with a smaller diameter of the hinge ring (14). A pressure receiving plate (15) is fixedly connected to the top of the hinge ring (14). The pressure receiving plate (15) is located in the activity cavity (11). A dial (16) is fixedly connected to the bottom of the hinge ring (14). The dial (16) is located outside the stirring pipe (10); The vibration device includes a hollow pipe I (20) fixedly connected to the center of the top end of the grate (2). The top end of the hollow pipe I (20) is fixedly connected with a hollow pipe II (21). Uniformly distributed extension pipes (22) are fixedly connected to the outer sides of the hollow pipe I (20) and the hollow pipe II (21). Four uniformly distributed convex blocks (23) are fixedly connected to the outer side of the top of the hollow pipe II (21). The circumferential surface of the convex block (23) is inclined and has an arc. The surface of the convex block (23) away from the hollow pipe II (21) is in an arc shape. The convex block (23) is located at the bottom position of the dial (16).

2. The stirring device used in a high-temperature biomass gasification furnace according to claim 1, characterized in that: A diversion pipe (5) is fixedly connected to the top end of the gasifier (1). The diversion pipe (5) is located at the bottom end inside the gasifier (1) near the middle of the stirring pipe (10).

3. The stirring device used in a high-temperature biomass gasification furnace according to claim 2, characterized in that: The opening and closing device includes a fixed rod (131) fixedly connected to the cavity wall of the valve port (12). The fixed rod (131) is generally L-shaped, and one end of the fixed rod (131) is T-shaped. A valve core (13) is movably sleeved on the part of the fixed rod (131) parallel to the center line of the valve port (12). A sliding cavity (132) is opened in the valve core (13). The T-shaped end of the fixed rod (131) is located in the sliding cavity (132). The valve core (13) is adapted to the valve port (12).

4. The stirring device used in a high-temperature biomass gasification furnace according to claim 1, characterized in that: The driven device includes a transmission seat (17) fixedly connected to the bottom of the central tube (8). A rotating wheel (18) is movably connected inside the transmission seat (17). The rotating wheel (18) is divided into a blade and a shaft. The shaft is movably connected to the transmission seat (17). The friction force at the movable connection between the shaft and the transmission seat (17) is large. A chamber for rotating the rotating wheel (18) is opened inside the transmission seat (17). One-third of the shaft of the rotating wheel (18) is located inside the central tube (8). A contact point (28) is provided on the shaft.

5. The stirring device used in a high-temperature biomass gasification furnace according to claim 4, characterized in that: The transmission base (17) is fixedly fitted with symmetrical circuit rings (29). The circuit rings (29) are divided into symmetrical forward current layers (292) and reverse current layers (293). A current-breaking layer (291) is provided between the forward current layers (292) and the reverse current layers (293). One of the circuit rings (29) is electrically connected to a circuit line. The forward current layer (292) transmits forward current, and the reverse current layer (293) transmits reverse current, both of which are direct current.

6. The stirring device used in a high-temperature biomass gasification furnace according to claim 5, characterized in that: The suction device includes an electromagnet (24) fixedly connected to the top of the inner cavity of the hollow tube II (21). A piston (25) is movably sleeved in the inner cavity of the hollow tube II (21). A high-temperature resistant magnet (26) is fixedly connected to the top of the piston (25). The heat resistance temperature of the high-temperature resistant magnet (26) is greater than 350 degrees. A limiting ring (27) is fixedly sleeved in the middle of the inner cavity of the hollow tube II (21). The inner diameter of the limiting ring (27) is smaller than the diameter of the piston (25). Dense exhaust holes are opened on the hollow tube I (20) and the extension tube (22) located on the hollow tube I (20).

7. The stirring device used in a high-temperature biomass gasification furnace according to claim 6, characterized in that: The top end of the hollow tube II (21) is fixedly connected to an electric slip ring (19), one of the circuit rings (29) is electrically connected to the electric slip ring (19), and the electromagnet (24) is electrically connected to the electric slip ring (19).

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