Maintenance-free gasification furnace apparatus

Abstract

The utility model relates to gasification furnace technical field especially is a kind of maintenance-free gasification furnace equipment, the maintenance-free gasification furnace equipment includes furnace body, is equipped with reaction cavity in furnace body, is equipped with ash cavity in furnace body below reaction cavity, is equipped with ash tray in reaction cavity bottom, is equipped with ash hole on ash tray, is equipped with sweep ash plate in ash tray, is equipped with flush water pipe that is connected to ash cavity inside in furnace body side, gather the ash produced in reaction cavity by ash tray, by sweep ash plate rotation, ash is concentrated to ash hole place and falls into ash cavity, and by flush water pipe, the water input into ash cavity carries ash and is discharged in the ash outlet of furnace bottom, to realize the automatic cleaning of ash, need not to carry out cleaning maintenance in the operation process of gasification furnace, need not to suspend the operation of gasification furnace, reach the effect of maintenance-free.

Description

Technical Field

[0001] This utility model relates to the field of gasifier technology, specifically to a maintenance-free gasifier device. Background Technology

[0002] A gasifier is an energy-saving and environmentally friendly device used to convert solid biomass raw materials such as straw and wood into combustible gases such as carbon monoxide, hydrogen, and methane through a thermochemical conversion process. However, existing gasifiers have the following main shortcomings: First, during operation, the biomass raw materials produce ash residue after reaction. This ash residue accumulates at the bottom of the gasifier, affecting its normal operation, requiring regular cleaning and maintenance, which necessitates stopping the gasifier's operation. Second, the gasifier produces pollutants such as tar and sulfur dioxide during operation, requiring filtration to prevent pollution. Current gasifiers are not very effective at filtering these pollutants. Third, because the gasifier operates under internal pressure, it is impossible to ensure that the released gas meets environmental protection requirements while simultaneously considering pressure safety. Utility Model Content

[0003] The present invention aims to provide a maintenance-free gasifier to solve the technical problem that existing gasifiers require regular maintenance to clean ash and slag, which leads to shutdowns.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] Design a maintenance-free gasification furnace device, including a furnace body, a reaction chamber provided in the furnace body, an ash and slag chamber provided below the reaction chamber in the furnace body, an ash and slag pan provided at the bottom of the reaction chamber, an ash dropping hole provided on the ash and slag pan, an ash sweeping plate provided in the ash and slag pan, a first rotating shaft provided in the reaction chamber, the ash sweeping plate provided at the bottom of the first rotating shaft, a first driving device connected to the first rotating shaft provided at the top of the furnace body; a flushing water pipe connected to the ash and slag chamber provided on the side of the furnace body, and an ash and slag outlet provided at the bottom of the furnace body.

[0006] Furthermore, the furnace body is provided with a first conical cylinder and a second conical cylinder connected vertically. The interior of the first conical cylinder and the second conical cylinder constitutes the bottom space of the reaction chamber. The inner wall of the furnace body is provided with a first partition, a second partition, and a third partition distributed from top to bottom. The bottom of the first conical cylinder is supported on the first partition, and the upper and lower parts of the second conical cylinder are supported on the second partition and the third partition, respectively. A valve is provided on the side of the furnace body, connecting to the space between the second partition and the third partition. An air inlet is provided on the second partition, and an air inlet gap is provided between the bottom of the first conical cylinder and the top of the second conical cylinder.

[0007] Furthermore, the ash slag disc is connected to the third partition plate by a suspension stud, and a gap is provided between the ash slag disc and the bottom of the reaction chamber.

[0008] Furthermore, the bottom of the first conical cylinder is located inside the top of the second conical cylinder, the upper edge of the second conical cylinder is close to or in contact with the bottom surface of the first partition, and the upper edge of the second conical cylinder is serrated.

[0009] Furthermore, the ash discharge hole is located in the middle of the ash and slag pan, an ash and slag distribution cone is provided at the bottom of the first rotating shaft, the ash sweeping plate is provided at the bottom of the ash and slag distribution cone, a baffle is provided around the ash and slag pan, and a sweeping surface is provided on the inner side of the sweeping plate to concentrate the ash and slag to the ash discharge hole.

[0010] Furthermore, a second rotating shaft is fitted over the first rotating shaft, and a support rod is provided on the second rotating shaft. The bottom of the support rod is provided with a baffle plate for sorting the biomass in the reaction chamber. A second driving device connected to the second rotating shaft is provided on the top of the furnace body. The first rotating shaft is a hollow shaft, and a heat dissipation water pipe is provided in the first rotating shaft.

[0011] Furthermore, a decontamination tank is provided at the top of the furnace body, and an exhaust chamber is provided at the upper part of the decontamination tank. A third rotating shaft is provided in the exhaust chamber, and a third driving device connected to the third rotating shaft is provided outside the decontamination tank. A fan impeller is provided at the upper part of the third rotating shaft. A decontamination compartment is provided at the lower part of the exhaust chamber, which is isolated by a decontamination baffle. The decontamination baffle has vent holes. A sleeve fitted on the third rotating shaft is provided in the decontamination compartment, and a decontamination metal wire is provided on the outer periphery of the sleeve. A cooling chamber is provided at the lower part of the decontamination tank, and an air inlet pipe array is provided in the cooling chamber. The bottom of the air inlet pipe in the air inlet pipe array is connected to the reaction chamber, and the top is connected to the exhaust chamber. A cooling inlet and a cooling outlet connected to the cooling chamber are provided on the outer wall of the decontamination tank.

[0012] Furthermore, it also includes a gas collection tank, on which a first water inlet connector and a first water outlet connector are provided, and the flushing water pipe is connected to the first water outlet connector; an air inlet pipe and an air outlet pipe are provided in the gas collection tank, and a baffle is provided inside the gas collection tank on the lower side of the air inlet pipe, and the top of the decontamination tank is connected to the air inlet pipe through a first air pipe; a first air pressure safety component is provided inside the gas collection tank, the first air pressure safety component includes a first water storage box disposed inside the gas collection tank, a first exhaust pipe is provided in the first water storage box, the top of the first water storage box is connected to the inside of the gas collection tank, the lower end of the first exhaust pipe extends to the bottom of the first water storage box, and the top end of the first exhaust pipe is connected to the outside of the gas collection tank;

[0013] A water level regulating assembly is provided on the gas collecting tank. A water level regulating hole is provided on one side of the gas collecting tank. The water level regulating assembly includes an inner box and an outer box respectively disposed on both sides of the water level regulating hole. The inner box and the outer box are connected through the water level regulating hole. The bottom of the inner box is connected to the inside of the gas collecting tank. A second water outlet connector is provided on one side of the outer box. A water level regulating plate is provided in the outer box that is in close contact with the water level regulating hole. A water level regulating rod is provided on the water level regulating plate. A positioning sleeve is provided on the outer wall of the gas collecting tank that is tightly fitted with the water level regulating rod.

[0014] Furthermore, a second pneumatic safety component is provided at the top of the inner side of the reaction chamber. The second pneumatic safety component includes a second water storage box disposed in the furnace body, a second exhaust pipe disposed in the second water storage box, the top of the second water storage box communicating with the furnace body, the lower end of the second exhaust pipe extending to the bottom of the second water storage box, the top end of the second exhaust pipe communicating with the outside of the furnace body, and an inlet pipe and an outlet pipe communicating with the second exhaust pipe are provided on the outer wall of the furnace body.

[0015] A water spray pipe is provided in the upper part of the reaction chamber in the furnace body, and a water spray pipe joint is provided on the outer wall of the furnace body. Water spray holes are distributed on the water spray pipe.

[0016] A temperature measuring box is provided on the outside of the furnace body. Two temperature probes are provided in the lower part of the reaction chamber in the furnace body, and two temperature displays are provided in the temperature measuring box. The temperature probes are electrically connected to the temperature displays respectively.

[0017] Furthermore, it also includes an elevator, which includes a hopper located at a lower position, the hopper being connected to the top of the reaction chamber via a conveying pipe, and the conveying pipe being provided with helical blades;

[0018] The upper part of the furnace body is provided with a reaction chamber access door, the lower part of the furnace body is provided with an ash and slag chamber access door, and the upper part of the furnace body is also provided with an observation window.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: (1) The maintenance-free gasification furnace equipment includes a furnace body, a reaction chamber is provided in the furnace body, an ash slag chamber is provided below the reaction chamber in the furnace body, an ash slag plate is provided at the bottom of the reaction chamber, an ash dropping hole is provided on the ash slag plate, a sweeping plate is provided in the ash slag plate, and a flushing water pipe connected to the ash slag chamber is provided on the side of the furnace body. The ash slag generated in the reaction chamber is collected by the ash slag plate, and the ash slag is concentrated at the ash dropping hole and falling into the ash slag chamber by the rotation of the sweeping plate. The water input into the ash slag chamber through the flushing water pipe carries the ash slag and discharges it at the ash slag outlet at the bottom of the furnace body, thereby realizing automatic cleaning of ash slag. There is no need to perform slag cleaning maintenance during the operation of the gasification furnace, and there is no need to stop the operation of the gasification furnace, thus achieving the effect of maintenance-free operation. (2) The maintenance-free gasification furnace equipment is equipped with a decontamination tank and a gas collection tank. The decontamination tank can remove tar, and the gas collection tank can further remove water-soluble pollutants such as sulfur dioxide in the gas, which has a better decontamination effect. (3) Pressure safety components are installed in the reaction chamber and the gas collection tank respectively to ensure that the pressure is within the safe range. Attached Figure Description

[0020] The present invention will be explained in detail below with reference to the accompanying drawings. It should be noted that the drawings are used to provide a further understanding of the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but should not impose any limitation on the implementability of the present invention.

[0021] In the attached diagram:

[0022] Figure 1 This is one of the three-dimensional structural schematic diagrams of an embodiment of the maintenance-free gasification furnace equipment of this utility model.

[0023] Figure 2 This is the second three-dimensional structural schematic diagram of an embodiment of the maintenance-free gasification furnace equipment of this utility model.

[0024] Figure 3 This is one of the schematic diagrams of the internal structure of the furnace body in one embodiment of the maintenance-free gasification furnace equipment of this utility model.

[0025] Figure 4 This is the second three-dimensional structural diagram of the furnace body in one embodiment of the maintenance-free gasification furnace equipment of this utility model.

[0026] Figure 5 for Figure 4 Enlarged view of part A.

[0027] Figure 6 for Figure 3 Enlarged view of part B.

[0028] Figure 7 This is a schematic diagram of the internal structure of the decontamination tank in one embodiment of the maintenance-free gasification furnace equipment of this utility model.

[0029] Figure 8 This is one of the schematic diagrams of the internal structure of the gas collecting tank in one embodiment of the maintenance-free gasification furnace equipment of this utility model.

[0030] Figure 9 This is the second schematic diagram of the internal structure of the gas collecting tank in one embodiment of the maintenance-free gasification furnace equipment of this utility model.

[0031] Figure 10 This is a schematic diagram of the water level adjustment hole in the gas collecting tank in one embodiment of the maintenance-free gasification furnace equipment of this utility model.

[0032] Figure 11 for Figure 4 Enlarged view of part C.

[0033] In the picture:

[0034] Furnace body 10, reaction chamber 11, reaction chamber inspection door 111, observation window 112, ash and slag chamber 12, flushing water pipe 121, ash and slag chamber inspection door 122, ash and slag tray 13, ash drop hole 131, baffle 132, ear seat 133, ash sweeping plate 14, first rotating shaft 15, first motor 151, first gearbox 152, ash and slag distribution cone 153, heat dissipation water pipe 154, ash and slag outlet 16, second rotating shaft 17, support rod 171, lever 172, first water storage box 18, second exhaust pipe 181, water inlet pipe 182, water outlet pipe 183, sprinkler pipe 19, flange 10-1;

[0035] First conical cylinder 20, first partition 21, air inlet gap 22;

[0036] Second conical cylinder 30, second partition 31, air inlet 311, third partition 32, valve 33;

[0037] Second drive unit 40, second motor 41, second gearbox 42;

[0038] 50. Decontamination tank, 51. Suction chamber, 52. Third rotating shaft, 53. Third drive device, 54. Fan impeller, 55. Decontamination baffle, 551. Sleeve, 56. Cooling chamber, 57. Cooling inlet, 571. Cooling outlet, 572. Air inlet array, 58. First air pipe, 59.

[0039] Air collection tank 60, first water inlet connector 61, first water outlet connector 62, air inlet pipe 63, baffle 631, air outlet pipe 64, second water storage box 65, first exhaust pipe 66, outer box 67, second water outlet connector 671, inner box 68, water level adjustment hole 69, water level adjustment plate 691, water level adjustment rod 692, positioning sleeve 693;

[0040] Temperature measuring box 70, temperature probe 71;

[0041] Elevator 80. Detailed Implementation

[0042] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0043] In one embodiment, a maintenance-free gasification furnace device is provided, such as... Figure 1-3 As shown, the maintenance-free gasification furnace includes a furnace body 10, which is a cylindrical tank. A reaction chamber 11 is located within the furnace body 10, in the upper part of the furnace body. The reaction chamber 11 is used to gasify biomass materials such as chopped straw and branches to produce combustible gas. An ash chamber 12 is located below the reaction chamber 11 within the furnace body 10. An ash tray 13 is located at the bottom of the reaction chamber 11. The ash produced after the biomass materials undergo gasification in the reaction chamber 11 accumulates on the ash tray 13 and then falls from the ash tray 13 into the ash chamber 12. Figure 3-4 As shown, the ash pan 13 is provided with ash dropping holes 131, and a sweeping plate 14 is provided in the ash pan 13. A first rotating shaft 15 is provided in the reaction chamber 11. The sweeping plate 14 is located at the bottom of the first rotating shaft 15. The first rotating shaft 15 drives the sweeping plate 14 to rotate, thereby concentrating the ash at the ash dropping holes 131 and dropping it into the ash chamber 12. A first driving device connected to the first rotating shaft 15 is provided at the top of the furnace body 10. The first driving device includes a first motor 151 and a first gearbox 152. The first motor 151 is driven to the first gearbox 152 through a belt mechanism (belt not shown in the figure), and the first gearbox 152 is driven to the first rotating shaft 15 through a chain drive mechanism (chain not shown in the figure). Figure 1-2 As shown, a flushing water pipe 121 is provided on the side of the furnace body 10, which is connected to the ash chamber 12, and an ash outlet 16 is provided at the bottom of the furnace body 10. Water is introduced into the ash chamber 12 through the flushing water pipe 121 and discharged together with the ash at the ash outlet 16 at the bottom of the furnace body 10.

[0044] The working principle of the maintenance-free gasification furnace is as follows: Biomass materials such as chopped straw and chopped branches are loaded into the reaction chamber 11 of the furnace body 10. Gas production is achieved by igniting the biomass materials and controlling the degree of combustion. During the gasification reaction, the ash and slag produced in the reaction chamber 11 will accumulate on the ash and slag plate 13. The first drive device is periodically activated and water is periodically introduced into the ash and slag chamber 12 through the flushing water pipe 121. The first drive device drives the first rotating shaft 15 to rotate the ash sweeping plate 14. During the rotation of the ash sweeping plate 14, the ash and slag are concentrated at the ash falling hole 131 and fall into the ash and slag chamber 12. The water introduced into the ash and slag chamber 12 through the flushing water pipe 121 carries the ash and slag and discharges it at the ash and slag outlet 16 at the bottom of the furnace body 10.

[0045] The maintenance-free gasifier equipment has the following effects: the ash generated in the reaction chamber 11 is collected by the ash pan 13, and the ash is concentrated at the ash drop hole 131 by the rotation of the ash sweeping plate 14 and falls into the ash chamber 12. The water introduced into the ash chamber 12 through the flushing water pipe 121 carries the ash and discharges it at the ash outlet 16 at the bottom of the furnace body 10, thereby realizing automatic cleaning of ash and slag. There is no need to perform ash cleaning and maintenance during the operation of the gasifier, and there is no need to stop the operation of the gasifier, thus achieving the effect of maintenance-free operation.

[0046] Furthermore, in another embodiment, such as Figure 3 and Figure 6 As shown, the maintenance-free gasification furnace equipment has a first conical cylinder 20 and a second conical cylinder 30 connected vertically within the furnace body 10. Both the first conical cylinder 20 and the second conical cylinder 30 are conical cylinders that gradually taper from top to bottom. Both the first conical cylinder 20 and the second conical cylinder 30 are fixed inside the furnace body 10. The interior of the first conical cylinder 20 and the second conical cylinder 30 constitutes the bottom space of the reaction chamber 11. Figure 6 As shown, the furnace body 10 is divided into upper and lower parts, which are connected by a flange 10-1. By designing the furnace body 10 into upper and lower parts, it is convenient to install the first conical cylinder 20 and the second conical cylinder 30.

[0047] like Figure 6 As shown, the inner wall of the furnace body 10 is provided with a first partition 21, a second partition 31, and a third partition 32 distributed from top to bottom. The first partition 21, the second partition 31, and the third partition 32 are all annular plates. The bottom of the first conical cylinder 20 is supported on the first partition 21, and the first conical cylinder 20 is fixedly installed through the first partition 21. The upper and lower parts of the second conical cylinder 30 are supported on the second partition 31 and the third partition 32, respectively, and the second conical cylinder 30 is fixedly installed through the second partition 31 and the third partition 32.

[0048] A valve 33 is provided on the side of the furnace body 10, which connects to the space between the second partition 31 and the third partition 32. The amount of air intake can be adjusted by the valve 33. An annularly distributed air intake hole 311 is provided on the second partition 31. An air intake gap 22 is provided between the bottom of the first conical cylinder 20 and the top of the second conical cylinder 30. Outside air enters the reaction chamber 11 through the valve 33, the air intake hole 311 and the air intake gap 22 to participate in the vaporization reaction.

[0049] In this embodiment, the bottom of the first conical cylinder 20 is located inside the top of the second conical cylinder 30, the upper edge of the second conical cylinder 30 is close to or in contact with the bottom surface of the first partition 21, and the upper edge of the second conical cylinder 30 is serrated, providing an air intake gap through the space between the serrated teeth of the upper edge of the second conical cylinder 30.

[0050] Furthermore, such as Figure 5 As shown, the ash discharge holes 131 on the ash pan 13 of the maintenance-free gasifier are located in the middle of the ash pan 13. An ash distribution cone 153 is provided at the bottom of the first rotating shaft 15. The ash distribution cone 153 gradually thickens from top to bottom, thereby distributing the ash on the inner edge of the ash pan 13 and preventing blockage of the ash discharge holes 131. A sweeping plate 14 is located at the bottom of the ash distribution cone 151. A baffle 132 is provided around the ash pan 13 to prevent biomass feedstock from falling from the periphery of the ash pan 13. The bottom surface of the sweeping plate 14 is close to the inner bottom surface of the ash pan 13. The inner side of the sweeping plate 14 has a sweeping surface 141 that concentrates the ash into the ash discharge holes 131. The sweeping plate 14 is hook-shaped, and the inner sweeping surface 141 can concentrate the ash from the periphery of the ash pan 13 towards the ash discharge holes 131.

[0051] Furthermore, such as Figure 5 As shown, the ash tray 13 is provided with three lugs 133 around its perimeter. The lugs 133 are connected to the third partition plate 32 by suspension studs. There is a gap between the ash tray 13 and the bottom of the reaction chamber 11 to facilitate the ash from falling out when there is too much ash.

[0052] Furthermore, the maintenance-free gasification furnace equipment has a second rotating shaft 17 fitted over the first rotating shaft 15. A support rod 171 is mounted on the second rotating shaft 17, and a baffle plate 172 for adjusting the biomass in the reaction chamber 11 is located at the bottom of the support rod 171. A second drive device 40 connected to the second rotating shaft 17 is located at the top of the furnace body 10. Figure 2As shown, the second drive device 40 includes a second motor 41 and a second gearbox 42. The second motor 41 is driven to the second gearbox 42 via a belt mechanism (belt not shown in the figure). The second gearbox 42 is driven to the second rotating shaft 17 via a chain drive mechanism (chain not shown in the figure). The first rotating shaft 15 and the second rotating shaft 17 mentioned above rotate independently and do not affect each other. The lower end of the first rotating shaft 15 is mounted on the ash pan 13 via a bearing, and the upper part of the second rotating shaft 17 is mounted on the top of the furnace body 10 via a bearing, or a bearing is provided between the first rotating shaft 15 and the second rotating shaft 17.

[0053] In addition, such as Figure 2-3 As shown, the first rotating shaft 15 mentioned above is a hollow shaft. A heat dissipation water pipe 154 is provided in the first rotating shaft 15. The top of the first rotating shaft 15 is open, and the heat dissipation water pipe 154 extends from the top of the first rotating shaft 15 to the bottom of the first rotating shaft 15. Cooling water is input into the first rotating shaft 15 through the heat dissipation water pipe 154 for cooling.

[0054] Furthermore, such as Figure 7 As shown, the maintenance-free gasification furnace equipment has a decontamination tank 50 at the top of the furnace body 10, and an extraction chamber 51 at the upper part of the decontamination tank 50. A third rotating shaft 52 is located in the extraction chamber 51. A third drive device 53, which is a motor, is located outside the decontamination tank 50 and connected to the third rotating shaft 52. The third drive device 53 is connected to the third rotating shaft 52 via a belt. A fan impeller 54 is located on the upper part of the third rotating shaft 52. The rotation of the fan impeller 54 draws the gas generated in the reaction chamber 11 of the furnace body 10 upward. At the lower part of the extraction chamber 51, there are two decontamination compartments 551 separated by decontamination baffles 55. Multiple vent holes are located in the middle of the decontamination baffles to allow gas to flow upward. A sleeve 56 is fitted onto the third rotating shaft 52 in the decontamination compartment 551. Decontamination metal wires are provided on the outer periphery of the sleeve 56 to form a cylindrical metal wire brush. The lower part of the decontamination tank 50 is provided with a cooling chamber 57, and the cooling chamber 57 is provided with an air inlet pipe array 58. The air inlet pipe array 58 is composed of multiple vertical air inlet pipes. The bottom of each air inlet pipe in the air inlet pipe array 58 is connected to the reaction chamber 11, and the top is connected to the suction chamber 51. The outer wall of the decontamination tank 50 is provided with a cooling inlet 571 and a cooling outlet 572 connected to the cooling chamber 57. Circulating cooling water is input into the cooling chamber 57 through the cooling inlet 571 and the cooling outlet 572.

[0055] The decontamination method of the decontamination tank 50 is as follows: Under the action of the fan impeller 54, the gas generated in the reaction chamber 11 enters the extraction chamber 51 along the intake pipe in the intake pipe array 58. Under the cooling effect of the cooling chamber 57, the tar in the gas will condense and adhere to the inner wall of the intake pipe in the intake pipe array 58. The tar flows down along the inner wall of the intake pipe into the reaction chamber 11 to promote combustion. When the gas enters the decontamination sub-chamber 551, the tar contained in the gas further adheres to the decontamination metal wire, and flows down after falling off with the third rotating shaft 52. The tar further flows down along the inner wall of the intake pipe into the reaction chamber 11 to promote combustion.

[0056] Furthermore, such as Figure 1-2 As shown, the maintenance-free gasification furnace also includes a gas collection tank 60, combined with... Figure 8-9 As shown, the gas collecting tank 60 is equipped with a first water inlet connector 61 and a first water outlet connector 62. The first water inlet connector 61 is located on the upper part of the side wall of the gas collecting tank 60, and the first water outlet connector 62 is located at the bottom of the gas collecting tank 60. The flushing water pipe 121 is connected to the first water outlet connector 62, and water is introduced into the ash chamber 12 through the gas collecting tank 60 for flushing. The gas collecting tank 60 is equipped with an air inlet pipe 63 and an air outlet pipe 64. The air inlet pipe 63 introduces gas into the gas collecting tank 60, and the air outlet pipe 64 is used to output the gas after it has been flushed. The remaining gas output from the air outlet pipe 64 is directly transported to the equipment requiring combustion through a pipeline. A baffle 631 is provided on the lower side of the air inlet pipe 63 inside the gas collecting tank 60; as shown... Figure 1-2 As shown, a blower outlet is provided on one side of the top of the decontamination tank 50, and the blower outlet on one side of the top of the decontamination tank 50 is connected to the air inlet pipe 63 through the first air pipe 59; as Figure 8-9 As shown, a first air pressure safety component is provided inside the gas collecting tank 60. The first air pressure safety component is used to release gas when the internal air pressure of the gas collecting tank 60 is too high. Specifically, the first air pressure safety component includes a second water storage box 65 installed inside the gas collecting tank 60, and a first exhaust pipe 66 installed in the second water storage box 65. Both the second water storage box 65 and the first exhaust pipe 66 are tubular. The top of the second water storage box 65 is connected to the inside of the gas collecting tank 60, the lower end of the first exhaust pipe 66 extends to the bottom of the second water storage box 65, and the top end of the first exhaust pipe 66 is connected to the outside of the gas collecting tank 60. Water is filled into the second water storage box 65 through the first exhaust pipe 66. When the internal air pressure of the gas collecting tank 60 is too high, the water in the second water storage box 65 will be discharged from the first exhaust pipe 66 under the gas pressure, causing the water seal between the water in the second water storage box 65 and the bottom of the first exhaust pipe 66 to fail, and the gas inside the gas collecting tank 60 can be discharged to reduce the pressure.

[0057] The water in the gas collecting tank 60 can further remove water-soluble pollutants such as sulfur dioxide from the gas.

[0058] In addition, such as Figure 8-10As shown, a water level regulating component is also provided on the gas collecting tank 60. A water level regulating hole 69 is provided on one side of the gas collecting tank. The water level regulating component includes an inner box 68 and an outer box 67 respectively provided on both sides of the water level regulating hole 69. The inner box 68 and the outer box 67 are connected through the water level regulating hole 69. The bottom of the inner box 68 is connected to the inside of the gas collecting tank 60. A second water outlet connector 671 is provided on one side of the outer box 67. A water level regulating plate 691 is provided in the outer box 67, which is in close contact with the water level regulating hole 69. A water level regulating rod 692 is provided on the water level regulating plate 691. A positioning sleeve 693 is provided on the outer wall of the gas collecting tank 60, which is in tight fit with the water level regulating rod 692. The water level regulating rod 692 and the positioning sleeve 693 are in tight fit. The weight of the water level regulating plate 691 and the water level regulating rod 692 will not cause them to fall freely.

[0059] The water level adjustment component adjusts the water level in the gas collection tank 60 as follows: Water in the gas collection tank 60 enters the inner box 68 from the bottom and flows out into the outer box 67 through the water level adjustment hole 69. The water in the outer box 67 further flows out from the second water outlet 671. The water level adjustment plate 691 is pulled up and down by the water level adjustment rod 692 to adjust the blocking area of ​​the water level adjustment plate 691 on the water level adjustment hole 69. The higher the position of the water level adjustment plate 691, the higher the water level in the gas collection tank 60.

[0060] Furthermore, in combination Figure 3 , Figure 4 and Figure 10 As shown, the maintenance-free gasification furnace equipment has a second gas pressure safety component at the top of the inner side of the reaction chamber 11. The second gas pressure safety component is used to release gas pressure when the pressure in the reaction chamber 11 is too high. The second gas pressure safety component includes a first water storage box 18 installed inside the furnace body 10, and a second exhaust pipe 181 installed in the second water storage box 18. The second water storage box 18 is a fan-shaped box, and the second exhaust pipe 181 is square. The top of the second water storage box 18 is connected to the inside of the furnace body 10, the lower end of the second exhaust pipe 181 extends to the bottom of the second water storage box 18, and the top end of the second exhaust pipe 181 is connected to the outside of the furnace body 10. A water inlet pipe 182 and a water outlet pipe 183 connected to the second exhaust pipe 181 are provided on the outer wall of the furnace body 10. Figure 4 and Figure 10 This is an internal diagram when the outer shell of the furnace body 10 is removed. The water inlet pipe 182 and the water outlet pipe 183 are actually installed on the outer shell of the furnace body 10, and the outer sides of the first water storage box 18 and the second exhaust pipe 181 are sealed by the outer shell of the furnace body 10.

[0061] The second air pressure safety component is used as follows: Water is introduced into the second water storage box 18 through the water inlet pipe 182, so that the water in the second water storage box 18 submerges the bottom of the second exhaust pipe 181. When the air pressure inside the reaction chamber 11 is too high, the water in the second water storage box 18 will be discharged from the second exhaust pipe 181 under the gas pressure, so that the water seal of the water in the second water storage box 18 to the bottom of the second exhaust pipe 181 fails, and the gas inside the reaction chamber 11 can be discharged to achieve the purpose of reducing pressure.

[0062] In addition, such as Figure 4 and Figure 11 As shown, a water spray pipe 19 is provided in the upper part of the reaction chamber 11 in the furnace body 10. A water spray pipe connector is provided on the outer wall of the furnace body 10. Water spray holes are distributed on the water spray pipe 19. Water can be sprayed onto the reaction chamber 11 through the water spray pipe 19 to reduce the temperature of the furnace wall.

[0063] In addition, such as Figure 3 and Figure 6 As shown, a temperature measuring box 70 is provided on the outside of the furnace body 10. Two temperature probes 71 are provided in the lower part of the reaction chamber 11 in the furnace body 10, and two temperature displays are provided in the temperature measuring box 70. The temperature probes 71 are electrically connected to the temperature displays. The temperature probes 71 sense the temperature of the material at different positions in the upper and lower parts of the reaction chamber 11, so as to provide a reference for adjusting the gas intake. When the temperature is too high or the gas intake is too large, the biomass is completely burned without generating gas. Therefore, it is necessary to adjust the optimal reaction temperature and maintain the optimal reaction range so that the biomass reaction generates CO and NO, thereby improving the utilization rate of biomass.

[0064] Furthermore, such as Figure 1-2 As shown, the maintenance-free gasification furnace equipment also includes a hoist 80, which includes a hopper located at a low position. The hopper is connected to the top of the reaction chamber through a conveying pipe. The conveying pipe is equipped with spiral blades for feeding biomass raw materials into the reaction chamber 11 from the ground.

[0065] In addition, a reaction chamber inspection door 111 is provided at the upper part of the furnace body 10, an ash chamber inspection door 122 is provided at the lower part of the furnace body 10, and an observation window 112 is also provided at the upper part of the furnace body 10. The reaction chamber inspection door 111 is used to inspect the inside of the reaction chamber 11 after opening, and the ash chamber inspection door 122 is used to inspect the inside of the ash chamber 12 after opening. Opening the observation window 112 allows direct observation of the reaction state of the materials inside the reaction chamber 11.

[0066] It should be noted that, unless otherwise defined, all terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains, and terms such as those defined in a common dictionary should be interpreted as having a meaning consistent with their meaning in the context of the relevant art. It should also be understood that the above is a description of this disclosure and should not be considered as a limitation thereof. Although several exemplary embodiments of this disclosure have been described, those skilled in the art will readily understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this invention. Therefore, all such modifications are intended to be included within the scope of this disclosure as defined in the claims, and will not be detailed here.

Claims

1. A maintenance-free gasification furnace device, comprising a furnace body, wherein a reaction chamber is provided in the furnace body, characterized in that: An ash chamber is located below the reaction chamber in the furnace body. An ash tray is located at the bottom of the reaction chamber. The ash tray has ash dropping holes and a sweeping plate is located in the ash tray. A first rotating shaft is located in the reaction chamber. The sweeping plate is located at the bottom of the first rotating shaft. A first driving device connected to the first rotating shaft is located at the top of the furnace body. A flushing water pipe connected to the ash chamber is located on the side of the furnace body. An ash outlet is located at the bottom of the furnace body.

2. The maintenance-free gasification furnace equipment according to claim 1, characterized in that: The furnace body contains a first conical cylinder and a second conical cylinder connected vertically. The interior of the first and second conical cylinders forms the bottom space of the reaction chamber. The inner wall of the furnace body contains a first partition, a second partition, and a third partition distributed from top to bottom. The bottom of the first conical cylinder is supported on the first partition, and the upper and lower parts of the second conical cylinder are supported on the second and third partitions, respectively. A valve is provided on the side of the furnace body, connecting to the space between the second and third partitions. An air inlet is provided on the second partition, and an air inlet gap is provided between the bottom of the first conical cylinder and the top of the second conical cylinder.

3. The maintenance-free gasification furnace equipment according to claim 2, characterized in that: The ash tray is connected to the third partition plate by a suspension stud, and there is a gap between the ash tray and the bottom of the reaction chamber.

4. The maintenance-free gasification furnace equipment according to claim 2, characterized in that: The bottom of the first conical cylinder is located inside the top of the second conical cylinder, the upper edge of the second conical cylinder is close to or in contact with the bottom surface of the first partition, and the upper edge of the second conical cylinder is serrated.

5. The maintenance-free gasification furnace equipment according to claim 1, characterized in that: The ash discharge hole is located in the middle of the ash and slag pan. An ash and slag distribution cone is provided at the bottom of the first rotating shaft. The ash sweeping plate is located at the bottom of the ash and slag distribution cone. A baffle is provided around the ash and slag pan. The inner side of the ash sweeping plate is provided with a sweeping surface that concentrates the ash and slag into the ash discharge hole.

6. The maintenance-free gasification furnace equipment according to claim 1, characterized in that: A second rotating shaft is fitted over the first rotating shaft, and a support rod is provided on the second rotating shaft. A baffle plate for sorting the biomass in the reaction chamber is provided at the bottom of the support rod. A second driving device connected to the second rotating shaft is provided at the top of the furnace body. The first rotating shaft is a hollow shaft, and a heat dissipation water pipe is provided in the first rotating shaft.

7. The maintenance-free gasification furnace equipment according to claim 1, characterized in that: A decontamination tank is provided at the top of the furnace body. An exhaust chamber is provided at the upper part of the decontamination tank. A third rotating shaft is provided in the exhaust chamber. A third driving device connected to the third rotating shaft is provided outside the decontamination tank. A fan impeller is provided at the upper part of the third rotating shaft. A decontamination compartment is provided at the lower part of the exhaust chamber, which is isolated by a decontamination baffle. The decontamination baffle has vent holes. A sleeve fitted on the third rotating shaft is provided in the decontamination compartment. Decontamination metal wires are provided on the outer periphery of the sleeve. A cooling chamber is provided at the lower part of the decontamination tank. An air inlet pipe array is provided in the cooling chamber. The bottom of the air inlet pipe in the air inlet pipe array is connected to the reaction chamber, and the top is connected to the exhaust chamber. A cooling inlet and a cooling outlet connected to the cooling chamber are provided on the outer wall of the decontamination tank.

8. The maintenance-free gasification furnace equipment according to claim 7, characterized in that: It also includes a gas collection tank, on which a first water inlet connector and a first water outlet connector are provided, and the flushing water pipe is connected to the first water outlet connector; an air inlet pipe and an air outlet pipe are provided in the gas collection tank, and a baffle is provided inside the gas collection tank on the lower side of the air inlet pipe, and the top of the decontamination tank is connected to the air inlet pipe through a first air pipe; a first air pressure safety component is provided inside the gas collection tank, the first air pressure safety component includes a first water storage box disposed inside the gas collection tank, a first exhaust pipe is provided in the first water storage box, the top of the first water storage box is connected to the inside of the gas collection tank, the lower end of the first exhaust pipe extends to the bottom of the first water storage box, and the top end of the first exhaust pipe is connected to the outside of the gas collection tank; A water level regulating assembly is provided on the gas collecting tank. A water level regulating hole is provided on one side of the gas collecting tank. The water level regulating assembly includes an inner box and an outer box respectively disposed on both sides of the water level regulating hole. The inner box and the outer box are connected through the water level regulating hole. The bottom of the inner box is connected to the inside of the gas collecting tank. A second water outlet connector is provided on one side of the outer box. A water level regulating plate is provided in the outer box that is in close contact with the water level regulating hole. A water level regulating rod is provided on the water level regulating plate. A positioning sleeve is provided on the outer wall of the gas collecting tank that is tightly fitted with the water level regulating rod.

9. The maintenance-free gasification furnace equipment according to claim 1, characterized in that: A second pneumatic safety component is provided at the top of the inner side of the reaction chamber. The second pneumatic safety component includes a second water storage box disposed in the furnace body. A second exhaust pipe is provided in the second water storage box. The top of the second water storage box is connected to the furnace body. The lower end of the second exhaust pipe extends to the bottom of the second water storage box. The top end of the second exhaust pipe is connected to the outside of the furnace body. An inlet pipe and an outlet pipe connected to the second exhaust pipe are provided on the outer wall of the furnace body. A water spray pipe is provided in the upper part of the reaction chamber in the furnace body, and a water spray pipe joint is provided on the outer wall of the furnace body. Water spray holes are distributed on the water spray pipe. A temperature measuring box is provided on the outside of the furnace body. Two temperature probes are provided in the lower part of the reaction chamber in the furnace body, and two temperature displays are provided in the temperature measuring box. The temperature probes are electrically connected to the temperature displays respectively.

10. The maintenance-free gasification furnace equipment according to claim 1, characterized in that: It also includes an elevator, which includes a hopper located at a low position, the hopper being connected to the top of the reaction chamber via a conveying pipe, and the conveying pipe being provided with helical blades; The upper part of the furnace body is provided with a reaction chamber access door, the lower part of the furnace body is provided with an ash and slag chamber access door, and the upper part of the furnace body is also provided with an observation window.

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