Efficient biomass gasification industrial steam supply system

Abstract

The invention discloses an efficient biomass gasification industrial steam supply system which comprises a feeding conveyor, a gasification furnace, a steam boiler, an air blower, a denitration reactor, a coal economizer, an air preheater, an induced draft fan, a spray tower and a wet-type electric precipitator, a feeding port is formed in the upper end of the gasification furnace, and the feeding conveyor is obliquely installed on the ground; the top space of the gasification furnace is communicated with the steam boiler through a first pipeline, and the air outlet end of the air blower is communicated with the steam boiler through an air inlet pipe. According to the system, the gasification furnace and the steam boiler are combined, so that steam generated by biomass gasification can be used for industrial supply, meanwhile, the waste gas treatment link is reasonably arranged and improved, the waste gas treatment effect is improved, the internal structure of the gasification furnace is optimally designed, sufficient combustion and accurate control of biomass raw materials are achieved, and the energy consumption is reduced. The system has higher energy utilization efficiency and better environmental protection performance, and the development requirements of the current energy and environment fields are met.

Description

Technical Field

[0001] The present invention relates to the technical field of steam supply, and particularly to an efficient biomass gasification industrial steam supply system. Background Art

[0002] With the acceleration of the global industrialization process, the demand for energy in industrial production has been increasing rapidly, and at the same time, people's awareness of environmental protection has been deepening day by day. Under such a background, the traditional industrial steam supply mode mainly based on fossil energy not only faces the severe challenge of energy depletion, but also the large amount of pollutants emitted during its combustion process has caused serious damage to the environment.

[0003] As a kind of energy with rich reserves, renewable and clean, biomass energy has gradually become the key breakthrough point to solve the current energy and environmental problems. Biomass raw materials have the characteristics of extremely wide sources, such as agricultural wastes (straw, rice husks, etc.), forestry residues (wood chips, branches, etc.) and various organic domestic wastes, etc., and the cost is relatively low. Reasonably processing biomass raw materials and converting them into steam for industrial supply can, on the one hand, greatly relieve the pressure on industrial development brought by energy shortage and reduce the high dependence of industrial production on traditional fossil energy; on the other hand, it can significantly reduce the emissions of pollutants such as greenhouse gases, sulfides, nitrogen oxides, etc. generated by the combustion of fossil energy, and strongly promote the development of industrial production towards the direction of green and sustainable development.

[0004] At the same time, in the process of gasifying biomass raw materials, the internal structure design of traditional gasifiers is not reasonable enough. In the existing gasifiers during operation, most of the raw materials are added into the gasifier at one time, resulting in the accumulation of raw materials in the gasifier. The raw materials accumulated inside cannot burn quickly, resulting in insufficient combustion of the raw materials in the furnace and low energy utilization efficiency, increasing the production cost.

[0005] Therefore, it is necessary to design an efficient biomass gasification industrial steam supply system to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to solve the deficiencies existing in the prior art, and to propose an efficient biomass gasification industrial steam supply system. By combining the gasifier and the steam boiler, this system can utilize the steam generated by biomass gasification for industrial supply. At the same time, the layout and improvement of the waste gas treatment link are carried out reasonably, improving the waste gas treatment effect, and the optimization design of the internal structure of the gasifier realizes the full combustion and precise control of biomass raw materials, making this system have higher energy utilization efficiency and better environmental protection performance, meeting the development needs in the current energy and environmental fields.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions: An efficient biomass gasification industrial steam supply system includes a feeding conveyor, a gasifier, a steam boiler, a blower, a denitration reactor, an economizer, an air preheater, an induced draft fan, a spray tower and a wet electrostatic precipitator. The upper end of the gasifier is provided with a feeding port. The feeding conveyor is inclined and installed on the ground. The top space of the gasifier is communicated with the steam boiler through a first pipeline. The air outlet end of the blower is communicated with the steam boiler through an air inlet pipe. The top space of the steam boiler is communicated with the denitration reactor through a second pipeline. The bottom space of the denitration reactor is communicated with the top space of the economizer through a third pipeline. The bottom space of the economizer is communicated with the air inlet end of the induced draft fan through a fourth pipeline. The air outlet end of the induced draft fan is communicated with the bottom space of the spray tower. The top space of the spray tower is communicated with the bottom space of the wet electrostatic precipitator.

[0008] Preferably, a multi-stage combustion assembly is provided inside the gasifier. The multi-stage combustion assembly includes combustion platforms arranged on the inner walls of the front and rear sides of the gasifier. A V-shaped plate is fixedly connected to the inner walls of the left and right sides of the gasifier together. A slag discharge pipe is communicated with the lower end of the gasifier. A plurality of cross bars are rotatably connected to the inner walls of the left and right sides of the gasifier together. A rotating plate is fixedly connected to each of the plurality of cross bars. A moving groove is provided at the lower end of each rotating plate. A first electromagnet is installed at the inner top of each moving groove. A telescopic plate is slidably connected to each moving groove. The adjacent sides of each first electromagnet and the corresponding telescopic plate are elastically connected through a second spring. A plurality of inclined plates are fixedly connected to the inner walls of the front and rear sides of the gasifier. The plurality of inclined plates are all located below the corresponding combustion platforms.

[0009] Preferably, a plurality of weighing assemblies are provided on the inner walls of the front and rear sides of the gasifier. The weighing assembly includes a weighing groove arranged on the inner wall of the gasifier. A moving plate is slidably connected to the weighing groove. The lower end of the moving plate is elastically connected to the inner bottom of the weighing groove through a first spring. A pressure sensor is installed at the inner bottom of the weighing groove. A pressing rod is fixedly connected to the lower end of the moving plate. Each moving plate is fixedly connected to the corresponding combustion platform.

[0010] Preferably, a plurality of rotating assemblies are provided on the right side of the gasifier. The rotating assembly includes a rectangular box installed on the right side of the gasifier. A moving block is slidably connected to the rectangular box. A pneumatic rod is fixedly connected to the inner wall of the rectangular box. The telescopic end of the pneumatic rod is fixedly connected to the moving block. A first rotating shaft is rotatably connected to the left inner wall of the rectangular box. The rear side of the first rotating shaft extends to the outside. A first gear is fixedly connected to the first rotating shaft. A rack cooperating with the first gear is fixedly connected to the moving block.

[0011] Preferably, a plurality of swing assemblies are provided on the left side of the gasifier, and the swing assembly includes a fixed plate fixedly connected to the left side of the gasifier, a second rotating shaft is rotatably connected to the fixed plate, an L-shaped block is fixedly connected to the left side of the fixed plate, and the L-shaped block and the adjacent side of the fixed plate are rotatably connected together with a short rod, an incomplete gear is provided on the short rod, a second gear matching the incomplete gear is provided on the second rotating shaft, and the second rotating shaft is elastically connected to the fixed plate by a torsion spring.

[0012] Preferably, a driving motor is installed on the L-shaped block located above, and the end of the output shaft of the driving motor is fixedly connected to the corresponding short rod. The multiple short rods are connected through a transmission assembly. The transmission assembly includes sprockets arranged on the multiple short rods, and the multiple sprockets are connected through chain transmission.

[0013] Preferably, the left and right sides of the plurality of cross bars extend to the outside world, and each of the cross bars is connected to the corresponding first rotating shaft and second rotating shaft through a connecting assembly, and the connecting assembly includes rectangular grooves arranged on the left and right sides of the cross bar, and the adjacent sides of the two rectangular grooves are connected through a circular channel, and the adjacent sides of the first rotating shaft and the second rotating shaft are provided with sliding grooves, and rectangular blocks are slidably connected in the two sliding grooves, and the adjacent sides of the two rectangular blocks are connected to a connecting rod by common rotation, and the connecting rod passes through the circular channel, and a second electromagnet is provided on the right inner wall of the sliding groove located on the right side, and the second electromagnet is elastically connected to the adjacent side of the rectangular block by a third spring.

[0014] Preferably, a control box is provided on the outer wall of the gasifier, and a power supply and multiple control switches are provided in the control box. A conductive block is fixedly connected to the inner wall of one side of each rectangular box, and a conductive rod is fixedly connected to each movable block. Each conductive rod and conductive block constitutes a control component, and the power supply, control component, corresponding control switch, first electromagnet and second electromagnet form a loop through wires.

[0015] The present invention has the following beneficial effects: 1. Compared with the existing technology, by sequentially setting up steam boilers, denitrification reactors, economizers, induced draft fans, spray towers and wet electrostatic precipitators, and connecting the various devices through corresponding pipelines, the steam generated by biomass gasification can be used for industrial supply, thereby improving the utilization rate of energy. At the same time, the pollutants in the exhaust gas can be treated, so that the exhaust gas emissions meet the increasingly stringent environmental emission standards. 2. Compared with the prior art, the biomass raw material processing system of the present invention is provided with a multi-stage combustion assembly in the gasifier. By arranging a plurality of combustion platforms on the inner walls of the front and rear sides of the gasifier, the raw materials will be successively stacked on the plurality of combustion platforms for combustion after entering the gasifier, avoiding excessive stacking of raw materials and affecting the combustion efficiency of the raw materials, thereby fully releasing the energy of the biomass raw materials, improving the energy utilization efficiency, effectively solving the problem of low energy utilization efficiency caused by incomplete combustion of raw materials in the traditional gasifier, and reducing the production cost; 3. Compared with the prior art, the present invention is provided with a weighing assembly on the inner walls of the front and rear sides of the gasifier. Through structures such as a moving plate slidably connected in the weighing groove, a first spring, a pressure sensor, and a pressing rod, and the moving plate is fixedly connected to the combustion platform, the weight of the raw materials in the gasifier can be monitored accurately and in real time. The operator can adjust the feeding amount in a timely manner according to the information fed back by the pressure sensor, ensuring the continuity and stability of production, and overcoming the defect in the prior art of lacking effective weighing means and being difficult to accurately understand the remaining amount of raw materials in the furnace; 4. Compared with the prior art, through the setting of the rotating assembly, after the raw materials on the combustion platform reach a certain weight, the rotating plate is rotated upward by the contraction of the pneumatic rod, so that the subsequent raw materials will fall on the rotating plate and then slide to the next combustion platform, thereby avoiding the situation of excessive stacking of raw materials on the combustion platform; 5. Compared with the prior art, through the setting of the swinging assembly, after each rotation of the rotating plate to an inclined state, the operation of the driving motor drives the rotating plate to be in a swinging state. On the one hand, it can make the raw materials spread evenly on each combustion platform as much as possible, and on the other hand, it can avoid the situation that the raw materials cannot slide on the rotating plate and cause excessive stacking of raw materials on the rotating plate.

[0016] In summary, through the innovative design of the internal structure of the gasifier, the combination of the gasifier and the boiler, and the reasonable layout of the waste gas treatment link, the biomass raw material processing system of the present invention has high energy utilization efficiency, good production stability, and good waste gas treatment effect, has good application prospects and promotion value in the field of biomass energy processing, and can better meet the current requirements of the energy and environment fields for biomass raw material processing systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of an efficient biomass gasification industrial steam supply system proposed by the present invention; Figure 2 is a schematic structural diagram of the gasifier; Figure 3 is Figure 2 a schematic structural diagram from another perspective; Figure 4 is Figure 2 a front-side half-sectional view of Figure 5 is the front schematic view of Figure 4 ; Figure 6 is the right side sectional view of Figure 2 ; Figure 7 is the enlarged structural schematic view of part A in Figure 6 ; Figure 8 is the structural schematic view of the rotating shaft; Figure 9 is the half-sectional view of Figure 8 ;

[0018] In the figure: 1 is the feeding conveyor, 2 is the gasifier, 3 is the outer platform, 4 is the first pipeline, 5 is the steam boiler, 6 is the second pipeline, 7 is the blower, 8 is the air inlet pipe, 9 is the denitration reactor, 10 is the third pipeline, 11 is the economizer, 12 is the air preheater, 13 is the fourth pipeline, 14 is the induced draft fan, 15 is the spray tower, 16 is the wet electrostatic precipitator, 17 is the feeding port, 18 is the rectangular box, 19 is the pneumatic rod, 20 is the moving block, 21 is the rack, 22 is the first rotating shaft, 23 is the first gear, 24 is the conductive block, 25 is the conductive rod, 26 is the driving motor, 27 is the L-shaped block, 28 is the second gear, 29 is the incomplete gear, 30 is the second rotating shaft, 31 is the transmission component, 32 is the short rod, 33 is the V-shaped plate, 34 is the combustion platform, 35 is the inclined plate, 36 is the weighing tank, 37 is the first spring, 38 is the pressure sensor, 39 is the pressure rod, 40 is the rotating plate, 41 is the first electromagnet, 42 is the second spring, 43 is the telescopic plate, 44 is the cross bar, 45 is the chute, 46 is the circular channel, 47 is the rectangular groove, 48 is the connecting rod, 49 is the second electromagnet, 50 is the third spring, 51 is the rectangular block. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] Refer to Figures 1-9, An efficient biomass gasification industrial steam supply system, comprising a feeding conveyor 1, a gasifier 2, a steam boiler 5, a blower 7, a denitration reactor 9, a economizer 11, an air preheater 12, an induced draft fan 14, a spray tower 15 and a wet electrostatic precipitator 16. The upper end of the gasifier 2 is provided with a feed inlet 17. The feeding conveyor 1 is inclined and installed on the ground. The top space of the gasifier 2 is communicated with the steam boiler 5 through a first pipeline 4. The air outlet end of the blower 7 is communicated with the steam boiler 5 through an intake pipe 8. The top space of the steam boiler 5 is communicated with the top space of the denitration reactor 9 through a second pipeline 6. The bottom space of the denitration reactor 9 is communicated with the top space of the economizer 11 through a third pipeline 10. The bottom space of the economizer 11 is communicated with the intake end of the induced draft fan 14 through a fourth pipeline 13. The air outlet end of the induced draft fan 14 is communicated with the bottom space of the spray tower 15. The top space of the spray tower 15 is communicated with the bottom space of the wet electrostatic precipitator 16. These devices and pipelines are interconnected to form a complete biomass raw material treatment system. The feeding conveyor 1 is responsible for conveying the biomass raw material into the gasifier 2 for gasification reaction. The gas generated by gasification enters the steam boiler 5 through the first pipeline 4 to heat the water in the steam boiler 5 to generate steam, and the generated steam can be used for industrial production. The blower 7 is used to promote the flow of gas in the steam boiler 5 so that it can stably enter the denitration reactor 9. Then the gas successively passes through the denitration reactor 9, the economizer 11, the induced draft fan 14, the spray tower 15 and the wet electrostatic precipitator 16 to gradually remove the pollutants in the gas. Finally, the treated gas is discharged after meeting the environmental protection emission standards.

[0021] Among them, a multi-stage combustion assembly is provided inside the gasifier 2. The multi-stage combustion assembly includes combustion platforms 34 arranged on the inner walls of the front and rear sides of the gasifier 2. The inner walls of the left and right sides of the gasifier 2 are fixedly connected together with a V-shaped plate 33. The lower end of the gasifier 2 is communicated with a slag discharge pipe. The inner walls of the left and right sides of the gasifier 2 are rotatably connected together with a plurality of cross bars 44. A plurality of rotating plates 40 are fixedly connected to the plurality of cross bars 44. A moving groove is provided at the lower end of each rotating plate 40. A first electromagnet 41 is installed at the inner top of each moving groove. A telescopic plate 43 is slidably connected in each moving groove. The adjacent sides of each first electromagnet 41 and the corresponding telescopic plate 43 are elastically connected by a second spring 42. A plurality of inclined plates 35 are fixedly connected to the inner walls of the front and rear sides of the gasifier 2. The plurality of inclined plates 35 are all located below the corresponding combustion platforms 34. The setting of the multi-stage combustion assembly enables the biomass raw materials to form multiple combustion positions inside the gasifier 2, avoiding the situation of incomplete combustion caused by excessive accumulation of raw materials and improving the combustion efficiency. The combustion platforms 34 are used to carry the biomass raw materials for combustion. The V-shaped plate 33 can initially distribute and guide the raw materials entering the gasifier 2. The slag discharge pipe is used to discharge the waste slag generated during the combustion process. The rotating plates 40 can rotate driven by the cross bars 44. Through the cooperation of the first electromagnets 41 and the telescopic plates 43, the landing positions of the subsequent raw materials can be controlled, so that the weights of the raw materials on each combustion platform 34 are the same. The inclined plates 35 can guide the ashes and the like generated by combustion to move downward, preventing them from accumulating on the combustion platforms 34 and affecting the combustion effect. The inner wall of the gasifier 2 is provided with an electric heating plate, and the inside of the gasifier 2 is heated to a relatively high state through the electric heating plate, enabling the raw materials to spontaneously combust.

[0022] Among them, a plurality of weighing assemblies are provided on the inner walls of the front and rear sides of the gasifier 2. The weighing assembly includes a weighing groove 36 arranged on the inner wall of the gasifier 2. A moving plate is slidably connected in the weighing groove 36. The lower end of the moving plate is elastically connected to the inner bottom of the weighing groove 36 by a first spring 37. A pressure sensor 38 is installed at the inner bottom of the weighing groove 36. A pressure rod 39 is fixedly connected to the lower end of the moving plate. Each moving plate is fixedly connected to the corresponding combustion platform 34. The function of the weighing assembly is to monitor the weight of the raw materials on the combustion platform 34 in real time. When there is raw material accumulation on the combustion platform 34, the weight will be transmitted to the pressure sensor 38 through the moving plate. The pressure sensor 38 converts the sensed pressure signal into an electrical signal and transmits it to the control box. The control box controls the corresponding pneumatic rod 19 to stretch or contract. That is, when the weight of the raw materials on the combustion platform 34 reaches a certain level, the control box controls the pneumatic rod 19 to contract. When the raw materials on the combustion platform 34 are burned out, the control box controls the pneumatic rod 19 to stretch.

[0023] Among them, a plurality of rotating components are provided on the right side of the gasifier 2, and the rotating component includes a rectangular box 18 installed on the right side of the gasifier 2, and a moving block 20 is slidably connected in the rectangular box 18, and a pneumatic rod 19 is fixedly connected to the inner wall of the rectangular box 18, and the telescopic end of the pneumatic rod 19 is fixedly connected to the moving block 20. The left inner wall of the rectangular box 18 is rotatably connected to the first rotating shaft 22, and the rear side of the first rotating shaft 22 extends to the outside world. A first gear 23 is fixedly connected to the first rotating shaft 22, and a rack 21 matching the first gear 23 is fixedly connected to the moving block 20. The rotating component is mainly used to control the rotation of the cross bar 44 and the rotating plate 40. When the weight of the raw materials on the combustion platform 34 reaches a certain level, the control box controls the pneumatic rod 19 to retract, and the pneumatic rod 19 drives the moving block 20 to slide in the rectangular box 18. The rack 21 on the moving block 20 engages with the first gear 23, thereby driving the first rotating shaft 22 to rotate, and then the cross bar 44 and the rotating plate 40 to rotate, so that the subsequent raw materials fall onto the next level of the combustion platform 34, avoiding excessive accumulation of raw materials on a single combustion platform 34.

[0024] Among them, the left side of the gasifier 2 is provided with multiple swing components, the swing component includes a fixed plate fixedly connected to the left side of the gasifier 2, and a second rotating shaft 30 is rotatably connected to the fixed plate. An L-shaped block 27 is fixedly connected to the left side of the fixed plate, and the L-shaped block 27 and the adjacent side of the fixed plate are rotatably connected with a short rod 32. An incomplete gear 29 is provided on the short rod 32, and a second rotating shaft 30 is provided with a second gear 28 that cooperates with the incomplete gear 29. The second rotating shaft 30 is elastically connected to the fixed plate through a torsion spring. A drive motor 26 is installed on the upper L-shaped block 27, and the output shaft end of the drive motor 26 is fixedly connected to the corresponding short rod 32. Multiple short rods 32 are connected for transmission through a transmission component 31. The transmission component 31 includes sprockets arranged on multiple short rods 32, and multiple sprockets are connected through chain transmission. The function of the swing component is to enable the rotating plate 40 to swing in an inclined state, further ensuring the uniform distribution of raw materials on the combustion platform 34. After the drive motor 26 is started, it drives the short rod 32 to rotate. The incomplete gear 29 on the short rod 32 intermittently engages with the second gear 28 on the second rotating shaft 30. In combination with the torsion spring elastically connected between the second rotating shaft 30 and the fixed plate, the second rotating shaft 30 swings back and forth. Specifically, when the second gear 28 engages the incomplete gear 29, the rotating plate 40 rotates upward, compressing the torsion spring. When the second gear 28 and the incomplete gear 29 are not engaged, the torsion spring causes the rotating plate 40 to rotate, thereby driving the crossbar 44 and the rotating plate 40 to swing. This prevents the raw materials from accumulating on the rotating plate 40 and preventing them from sliding off, while also ensuring that the raw materials are more evenly spread on the combustion platform 34, thereby improving combustion efficiency. Multiple short rods 32 are connected by sprockets and chains to ensure the synchronous operation of each swinging assembly.

[0025] Among them, both the left and right sides of the multiple crossbars 44 extend to the outside. Each crossbar 44 is connected to the corresponding first rotating shaft 22 and second rotating shaft 30 through a connecting component. The connecting component includes rectangular grooves 47 provided on the left and right sides of the crossbar 44. The adjacent sides of the two rectangular grooves 47 are connected through a circular channel 46. Sliding grooves 45 are provided on the adjacent sides of the first rotating shaft 22 and the second rotating shaft 30. Rectangular blocks 51 are slidably connected in the two sliding grooves 45. The adjacent sides of the two rectangular blocks 51 are jointly rotatably connected to a connecting rod 48. The connecting rod 48 penetrates through the circular channel 46. A second electromagnet 49 is provided on the right inner wall of the sliding groove 45 on the right side. The adjacent side of the second electromagnet 49 and the rectangular block 51 are elastically connected through a third spring 50. A control box is provided on the outer wall of the gasifier 2. A power supply and multiple control switches are provided in the control box. A conductive block 24 is fixedly connected to the inner wall of one side of each rectangular box 18. A conductive rod 25 is fixedly connected to each moving block 20. Each conductive rod 25 and the conductive block 24 form a control component. The power supply, the control component, the corresponding control switch, the first electromagnet 41, and the second electromagnet 49 form a circuit through wires. The connecting component realizes the connection and power transmission between the crossbar 44 and the first rotating shaft 22 and the second rotating shaft 30. In the initial state, the second electromagnet 49 is powered off. The rectangular block 51 on the right side is located in the rectangular groove 47, and the rectangular block 51 on the left side is not located in the rectangular groove 47. When the pneumatic rod 19 contracts to make the conductive rod 25 contact the conductive block 24, the circuit is turned on, the second electromagnet 49 is powered on, and an attractive force is generated on the rectangular block 51, causing the two rectangular blocks 51 to move, realizing the connection and separation control of the crossbar 44 and the first rotating shaft 22 and the second rotating shaft 30. Through the power supply and control switches in the control box, the operation of each component in the entire system can be controlled to ensure the normal operation of the biomass raw material processing system.

[0026] The functional principle of the present invention can be described through the following operating mode: The gas generated after the reaction of biomass raw materials in the gasifier 2 first enters the steam boiler 5 in the top space, which is connected to the gasifier 2 through the first pipeline 4. At this time, the gas generated by gasification heats the water in the boiler 5, thereby generating steam for industrial production. Under the action of the blower 7, the gas in the steam boiler 5 enters the top space of the denitration reactor 9 through the second pipeline 6. In the denitration reactor 9, pollutants such as nitrogen oxides in the gas are removed. The treated gas enters the top space of the economizer 11 from the bottom space of the denitration reactor 9 through the third pipeline 10. The economizer 11 recovers the heat in the gas and reduces the gas temperature. Then, the gas enters the intake end of the induced draft fan 14 from the bottom space of the economizer 11 through the fourth pipeline 13. The induced draft fan 14 provides power to transport the gas to the bottom space of the spray tower 15. In the spray tower 15, the gas is further purified by spraying to remove some impurities and pollutants. Finally, the gas treated by the spray tower 15 enters the bottom space of the wet electrostatic precipitator 16 from the top space. The wet electrostatic precipitator 16 removes the remaining fine particulate matter and other pollutants in the gas through the action of the electric field, and discharges the treated gas after meeting the environmental protection emission standards.

[0027] The biomass raw materials are inclinedly conveyed to the feed port 17 at the upper end of the gasifier 2 through the feeding conveyor 1 and enter the gasifier 2. In the initial state, multiple first electromagnets 41 are in the power-off state, and multiple rotating plates 40 are in the vertical state. When adding raw materials, the raw materials will first fall on the two combustion platforms 34 located above through the V-shaped plate 33. When the raw materials on the combustion platform 34 reach a certain weight, the pressure lever 39 squeezes the pressure sensor 38. At this time, the pressure sensor 38 generates an electrical signal and transmits it to the control box. The control box controls the corresponding pneumatic rod 19 to contract. Since the second electromagnet 49 is in the power-off state in the initial state, the right rectangular block 51 is located in the rectangular groove 47, and the left rectangular block 51 is not located in the rectangular groove 47.

[0028] The contraction of the pneumatic rod 19 drives the moving block 20 and the rack 21 to move backward, drives the cross bar 44 to rotate through the first gear 23, and makes the rotating plate 40 rotate to an inclined state. When the contraction of the pneumatic rod 19 makes the conductive rod 25 contact the conductive block 24, both the first electromagnet 41 and the second electromagnet 49 are energized. After the first electromagnet 41 is energized, it exerts a repulsive force on the telescopic plate 43, making the telescopic plate 43 extend out of the moving groove. The subsequent raw materials will fall on the next-level combustion platform 34. In this way, a certain weight of raw materials is placed on each combustion platform 34; The second electromagnet 49 is energized to generate an attractive force on the rectangular block 51, causing the two rectangular blocks 51 to move to the right. At this time, the left rectangular block 51 enters the rectangular groove 47, and the right rectangular block 51 moves away from the corresponding rectangular groove 47 (when the left rectangular block 51 enters the rectangular groove 47, the right rectangular block 51 just moves out of the corresponding rectangular groove 47). During the operation of the drive motor 26, the intermittent meshing of the incomplete gear 29 and the second gear 28, as well as the cooperation of the torsion spring, cause the rotating plate 40 to continuously swing, so that the raw materials are spread as evenly as possible on the combustion platform 34, while ensuring that the situation where the raw materials cannot slide off the rotating plate 40 is avoided; Since the combustion platform 34 is reticular, during each combustion, the ash and waste residues will fall on the inclined plate 35, then fall to the bottom of the gasifier 2 through the middle area of the gasifier 2, and finally be discharged through the slag discharge pipe.

[0029] As the raw materials on the combustion platform 34 burn, the weight on the combustion platform 34 continuously decreases. When the raw materials on the combustion platform 34 are completely burned, the pressure sensor 38 will transmit a signal to the control box again. The control box controls the corresponding pneumatic rod 19 to stretch, and the moving block 20 drives the rack 21 to reset. After the moving block 20 moves, the conductive block 24 and the conductive rod 25 are separated. At this time, the first electromagnet 41 and the second electromagnet 49 are de-energized. Under the elastic action of the second spring 42 and the third spring 50, the telescopic plate 43 is reset, and at the same time the two rectangular blocks 51 are reset. The cross bar 44 is connected to the first rotating shaft 22 again. As the pneumatic rod 19 continues to stretch, it will drive the cross bar 44 to rotate in the reverse direction through the first rotating shaft 22, and the rotating plate 40 is reset, so that the subsequent raw materials can fall on the combustion platform 34 again.

[0030] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent replacements or changes, should be covered within the protection scope of the present invention.

Claims

1. An efficient biomass gasification industrial steam supply system, comprising a feeding conveyor (1), a gasifier (2), a steam boiler (5), a blower (7), a denitration reactor (9), a economizer (11), an air preheater (12), an induced draft fan (14), a spray tower (15) and a wet electrostatic precipitator (16), characterized in that: The upper end of the gasifier (2) is provided with a feed inlet (17). The feeding conveyor (1) is inclined and installed on the ground. The top space of the gasifier (2) is communicated with the steam boiler (5) through a first pipeline (4). The air outlet end of the blower (7) is communicated with the steam boiler (5) through an air inlet pipe (8). The steam boiler (5) is communicated with the top space of the denitration reactor (9) through a second pipeline (6). The bottom space of the denitration reactor (9) is communicated with the top space of the economizer (11) through a third pipeline (10). The bottom space of the economizer (11) is communicated with the air inlet end of the induced draft fan (14) through a fourth pipeline (13). The air outlet end of the induced draft fan (14) is communicated with the bottom space of the spray tower (15). The top space of the spray tower (15) is communicated with the bottom space of the wet electrostatic precipitator (16).

2. An efficient biomass gasification industrial steam supply system according to claim 1, characterized in that: A multi-stage combustion assembly is provided inside the gasifier (2). The multi-stage combustion assembly includes combustion platforms (34) arranged on the inner walls of the front and rear sides of the gasifier (2). A V-shaped plate (33) is fixedly connected to the inner walls of the left and right sides of the gasifier (2). The lower end of the gasifier (2) is communicated with a slag discharge pipe. A plurality of cross bars (44) are rotatably connected to the inner walls of the left and right sides of the gasifier (2). A rotating plate (40) is fixedly connected to each of the plurality of cross bars (44). A moving groove is provided at the lower end of each rotating plate (40). A first electromagnet (41) is installed at the inner top of each moving groove. A telescopic plate (43) is slidably connected to each moving groove. The adjacent sides of each first electromagnet (41) and the corresponding telescopic plate (43) are elastically connected by a second spring (42). A plurality of inclined plates (35) are fixedly connected to the inner walls of the front and rear sides of the gasifier (2). The plurality of inclined plates (35) are all located below the corresponding combustion platforms (34).

3. An efficient biomass gasification industrial steam supply system according to claim 2, characterized in that: A plurality of weighing assemblies are provided on the inner walls of the front and rear sides of the gasifier (2). The weighing assembly includes a weighing groove (36) arranged on the inner wall of the gasifier (2). A moving plate is slidably connected to the weighing groove (36). The lower end of the moving plate is elastically connected to the inner bottom of the weighing groove (36) by a first spring (37). A pressure sensor (38) is installed at the inner bottom of the weighing groove (36). A pressure rod (39) is fixedly connected to the lower end of the moving plate. Each moving plate is fixedly connected to the corresponding combustion platform (34).

4. An efficient biomass gasification industrial steam supply system according to claim 2, wherein: A plurality of rotating components are provided on the right side of the gasifier (2), and the rotating components include a rectangular box (18) installed on the right side of the gasifier (2), a moving block (20) is slidably connected in the rectangular box (18), a pneumatic rod (19) is fixedly connected to the inner wall of the rectangular box (18), and the telescopic end of the pneumatic rod (19) is fixedly connected to the moving block (20), and a first rotating shaft (22) is rotatably connected to the left inner wall of the rectangular box (18), the rear side of the first rotating shaft (22) extends to the outside, a first gear (23) is fixedly connected to the first rotating shaft (22), and a rack (21) matched with the first gear (23) is fixedly connected to the moving block (20).

5. An efficient biomass gasification industrial steam supply system according to claim 4, characterized in that: A plurality of swing assemblies are provided on the left side of the gasifier (2), and the swing assemblies include a fixed plate fixedly connected to the left side of the gasifier (2), a second rotating shaft (30) passing through the fixed plate and rotatably connected, an L-shaped block (27) is fixedly connected to the left side of the fixed plate, the L-shaped block (27) and the adjacent side of the fixed plate are rotatably connected to a short rod (32), an incomplete gear (29) is provided on the short rod (32), a second gear (28) matching the incomplete gear (29) is provided on the second rotating shaft (30), and the second rotating shaft (30) is elastically connected to the fixed plate via a torsion spring.

6. An efficient biomass gasification industrial steam supply system according to claim 5, characterized in that: A driving motor (26) is mounted on the upper L-shaped block (27), and the output shaft end of the driving motor (26) is fixedly connected to the corresponding short rod (32). The plurality of short rods (32) are connected in transmission via a transmission assembly (31). The transmission assembly (31) includes sprockets arranged on the plurality of short rods (32), and the plurality of sprockets are connected in transmission via a chain.

7. An efficient biomass gasification industrial steam supply system according to claim 5, characterized in that: The left and right sides of the plurality of cross bars (44) extend to the outside, and each cross bar (44) is connected to the corresponding first rotating shaft (22) and second rotating shaft (30) through a connecting assembly, and the connecting assembly includes rectangular grooves (47) arranged on the left and right sides of the cross bar (44), and the adjacent sides of the two rectangular grooves (47) are connected through a circular channel (46). The adjacent sides of the first rotating shaft (22) and the second rotating shaft (30) are both provided with a sliding groove (45), and a rectangular block (51) is slidably connected in the two sliding grooves (45). The adjacent sides of the two rectangular blocks (51) are connected to a connecting rod (48) for common rotation, and the connecting rod (48) passes through the circular channel (46). A second electromagnet (49) is provided on the right inner wall of the sliding groove (45) located on the right side, and the adjacent side of the second electromagnet (49) and the rectangular block (51) are elastically connected through a third spring (50).

8. An efficient biomass gasification industrial steam supply system according to claim 7, characterized in that: A control box is provided on the outer wall of the gasifier (2). A power supply and a plurality of control switches are provided in the control box. A conductive block (24) is fixedly connected to the inner wall of one side of each rectangular box (18). A conductive rod (25) is fixedly connected to each moving block (20). Each conductive rod (25) and the conductive block (24) form a control component. The power supply, the control component, the corresponding control switch, the first electromagnet (41) and the second electromagnet (49) form a circuit through wires.

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