Intelligent clean biomass fluidized bed combustion furnace and method

Abstract

The application discloses a kind of intelligent clean biomass fluidized bed combustion furnace and method, it is related to fluidized bed combustion furnace technical field, including combustion boiler and flue gas discharging bin, the exhaust pipe and feed pipe are arranged on the combustion boiler, the inside of the flue gas discharging bin includes two chambers, through hole is opened between two described chambers, the exhaust pipe of the flue gas discharging bin and combustion boiler fixed connection, including: material conveying channel, the inner and outer wall of flue gas discharging bin is fixedly penetrated in the material conveying channel, the material conveying channel and the feed pipe of combustion boiler fixed connection, the surface of the material conveying channel is provided with temperature sensor, and the temperature sensor is used for monitoring temperature;By setting round block, effectively prevent dust particles from entering the inside of heat conducting frame, prevent dust particles from being accumulated on the contact surface of heat conducting frame and heat conducting rod, so as to maintain long-term stable heat conduction efficiency.

Description

Technical Field

[0001] This invention relates to the field of fluidized bed combustion furnace technology, specifically to an intelligent and clean biomass fluidized bed combustion furnace and method. Background Technology

[0002] The intelligent clean biomass fluidized bed combustion furnace is a highly efficient and environmentally friendly energy conversion device that combines fluidized bed combustion technology, intelligent control system and clean emission technology, and is specifically designed for biomass fuel.

[0003] Patent publication number CN118687146B relates to an intelligent and clean biomass fluidized bed combustion furnace. This intelligent and clean biomass fluidized bed combustion furnace includes an installation assembly, a mixing assembly, a feeding assembly, a combustion furnace, and a tail gas recirculation assembly. This patent can provide a uniform and continuous gas supply flow and biomass fuel to the combustion furnace, ensuring temperature uniformity during combustion. It utilizes the gas supply flow to preheat and dry the biomass fuel, improving combustion efficiency, reducing the impact of moisture on the combustion process, reducing fuel consumption and flue gas emissions, and improving the removal efficiency of sulfur dioxide in the flue gas, thus lowering sulfur dioxide emission levels. It also effectively controls the formation of nitrogen oxides, improving energy efficiency, reducing energy waste, ensuring an environmentally friendly combustion process that meets emission standards, and separating particulate matter from the initial combustion smoke, significantly reducing the concentration of particulate matter pollution in combustion emissions, thus meeting environmental protection requirements.

[0004] The aforementioned patent has the effect of reducing the concentration of particulate matter pollution in combustion emissions. By preheating and drying biomass fuel, combustion efficiency is improved and the impact of moisture on the combustion process is reduced. However, during preheating, there is uneven heat distribution, which affects the evaporation of moisture and thus the preheating effect. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an intelligent and clean biomass fluidized bed combustion furnace and method, solving the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an intelligent and clean biomass fluidized bed combustion furnace, comprising a combustion boiler and a flue gas emission chamber. The combustion boiler is equipped with an exhaust pipe and a feed pipe. The flue gas emission chamber is internally divided into two chambers, with a through hole between the two chambers. The flue gas emission chamber and the exhaust pipe of the combustion boiler are fixedly connected. The furnace includes: a material conveying channel, which is fixedly installed through the inner and outer walls of the flue gas emission chamber and is fixedly connected to the feed pipe of the combustion boiler. A temperature sensor is installed on the surface of the material conveying channel for monitoring the temperature; and a preheating frame, which is fixedly installed on the material conveying channel. The system includes: an inner wall of the conveying channel; a guide plate, which is fixedly installed on the inner wall of the preheating frame. Both the preheating frame and the guide plate are thermally conductive. After the biomass fuel enters the preheating frame, it contacts the guide plate during its descent. The inclined design of the guide plate causes the biomass fuel to move slowly downwards; a heat-conducting frame, which is fixedly installed through the inner and outer walls of the conveying channel and contacts the outer wall of the preheating frame; a heat-conducting rod, which is set on the inner wall of the heat-conducting frame and whose circumferential surface contacts the through hole; and a heat-insulating handle, which is fixedly installed on the right side of the heat-conducting rod. Manually pulling the heat-insulating handle moves it away from the flue gas emission chamber, and the movement of the heat-insulating handle causes the heat-conducting rod to move synchronously.

[0007] According to the above technical solution, a circular hole is provided on the side of the flue gas emission chamber near the heat-insulating handle. The circumferential surface of the heat-conducting rod contacts the circular hole. The heat-conducting rod first separates from the through hole, then separates from the heat-conducting frame, and finally is pulled out from the circular hole. The heat-insulating handle contacts the outer wall of the flue gas emission chamber.

[0008] According to the above technical solution, a sleeve plate is fixedly installed on the circumferential surface of the heat-insulating handle, a fixing frame is fixedly installed on the outer wall of the material conveying channel, a round block is fixedly installed on the side of the fixing frame away from the heat-conducting frame, and a conical groove is opened on the side of the round block away from the fixing frame. The conical groove contacts the heat-conducting rod. During the movement of the heat-conducting rod, the dust particles adhering to the surface are scraped off by the conical surface of the round block, and most of the dust particles are blocked on the outside of the round block.

[0009] According to the above technical solution, the outer wall of the flue gas emission chamber is provided with a control device for driving the movement of the heat-conducting rods. The control device is provided with a locking device for improving operational convenience. The control device includes a hollow cylinder, a movable rod, a hollow plate, a T-shaped plate, and a return spring. The T-shaped plate moves to compress the return spring. After disassembly, the return spring returns to its original position, pushing the T-shaped plate back to its original position. The hollow cylinder is fixedly installed on the surface of the flue gas emission chamber. The movable rod slides through the inner and outer walls of the hollow cylinder. The hollow plate is fixedly installed on the circumferential surface of the movable rod. The T-shaped plate slides through the side of the hollow plate away from the movable rod. The return spring is located between the T-shaped plate and the hollow plate. A groove is formed on the surface of the T-shaped plate. The sleeve plate contacts the groove. The movement of the T-shaped plate drives the sleeve plate to move synchronously, thereby driving all the heat-conducting rods to move.

[0010] According to the above technical solution, the outer wall of the T-shaped plate is provided with a mounting frame, and a rotating rod is rotatably passed through the surface of the mounting frame. The rotating rod contacts the inner wall of the hollow cylinder, and the movement of the rotating rod and the friction with the contacting hollow cylinder cause the rotating rod to rotate on the hollow cylinder.

[0011] According to the above technical solution, a linkage plate is fixedly installed on the side of the T-shaped plate away from the flue gas emission chamber. The groove of the T-shaped plate disengages from the sleeve plate during movement and drives the linkage plate to move synchronously during movement. A rectangular groove is provided on the side of the linkage plate away from the T-shaped plate, and an inclined surface is provided on the side of the linkage plate near the movable rod.

[0012] According to the above technical solution, the locking device includes an outer frame, a T-shaped rod, a spring, a rectangular plate, a telescopic frame, a roller, and an elastic sheet. The moving linkage plate applies a thrust to the roller, causing the roller to move away from the outer frame. The outer frame is fixedly installed on the outer wall of the hollow plate. The T-shaped rod slides through the inner and outer walls of the outer frame. The spring is disposed between the T-shaped rod and the outer frame. The rectangular plate is fixedly installed on the side of the T-shaped rod away from the outer frame. The telescopic frame slides through the inner wall of the rectangular plate. The roller rotates through the surface of the telescopic frame. The elastic sheet is disposed between the telescopic frame and the rectangular plate. The movement of the roller drives the telescopic frame and the pull rod to move synchronously. The movement of the telescopic frame compresses the elastic sheet.

[0013] According to the above technical solution, the inner and outer walls of the rectangular plate are slidably connected by a tie rod. The tie rod and the side of the telescopic frame away from the roller are fixedly connected. After the heat-conducting rod is disassembled, the tie rod can be manually pulled to quickly release the limit.

[0014] An operating method for an intelligent and clean biomass fluidized bed combustion furnace, using the aforementioned intelligent and clean biomass fluidized bed combustion furnace, includes the following steps: Step 1: Biomass fuel enters the preheating frame through the conveying channel and comes into contact with the guide plate during its descent. The inclined design of the guide plate causes the biomass fuel to move slowly downward. Step 2: After the biomass fuel separates from the guide plate, it falls under the action of gravity. During the falling process, the biomass fuel enters the combustion boiler through the feed pipe. Step 3: In the combustion boiler, biomass fuel is first fluidized by airflow, and then efficiently combusted in a fully mixed fluidized state; Step 4: The high-temperature flue gas generated during combustion enters the flue gas emission chamber through the exhaust pipe and is then discharged upwards.

[0015] This invention provides an intelligent and clean biomass fluidized bed combustion furnace and method. It has the following beneficial effects: (1) In this intelligent and clean biomass fluidized bed combustion furnace, the surface moisture of the biomass fuel is fully evaporated due to the high temperature environment of the preheating frame. By setting multiple heat-conducting rods, the preheating frame can be heated evenly to ensure that the moisture in the biomass fuel is effectively evaporated, thereby further improving the combustion efficiency. At the same time, dust particles are blocked on the outside of the round block. By setting the round block, dust particles are effectively prevented from entering the interior of the heat-conducting frame and from accumulating on the contact surface between the heat-conducting frame and the heat-conducting rod, thereby maintaining a long-term stable heat transfer efficiency.

[0016] (2) In this intelligent and clean biomass fluidized bed combustion furnace, the T-shaped plate moves and drives the sleeve plate to move, thereby driving all the heat-conducting rods to move. Through the stable contact between the T-shaped plate and the sleeve plate, the heat-conducting rods can be prevented from shifting during operation and can be disassembled efficiently. At the same time, the rotating rod provides additional support for the hollow plate. By setting the rotating rod on the hollow plate, the hollow plate can move smoothly and reduce the burden on the electric push rod driving the moving rod.

[0017] (3) In this intelligent and clean biomass fluidized bed combustion furnace, the rollers apply a limit to the linkage plate, so that the T-shaped plate remains stationary at the designated position. The rollers move back and forth to limit the linkage plate, ensuring that the T-shaped plate will not cause obstruction when disassembling the heat-conducting rod, which helps to improve the disassembly efficiency. At the same time, the rectangular plate can be actively pulled to limit the position. Through multiple limiting methods, the flexibility of the limiting operation can be improved, and the situation of the telescopic frame getting stuck can be effectively dealt with, ensuring the smooth progress of disassembly. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the flue gas emission chamber of the present invention; Figure 3 This is a schematic diagram showing the location and structure of the flue gas emission chamber and the heat-conducting rod of the present invention; Figure 4 This is a schematic diagram of the internal structure of the material conveying channel of the present invention; Figure 5 For the present invention Figure 4Enlarged structural diagram at point A in the middle; Figure 6 This is a schematic diagram of the guide plate position structure of the present invention; Figure 7 This is a schematic diagram of the overall structure of the hollow cylinder of the present invention; Figure 8 This is a schematic diagram of the internal structure of the hollow cylinder of the present invention; Figure 9 This is a schematic diagram of the position structure of the linkage plate and rollers in this invention; Figure 10 This is a schematic diagram of the internal structure of the outer frame of the present invention.

[0019] In the diagram: 1. Flue gas emission chamber; 2. Material conveying channel; 3. Preheating frame; 4. Guide plate; 5. Heat conduction frame; 6. Heat conduction rod; 7. Heat-insulating handle; 8. Sleeve plate; 9. Fixing frame; 10. Round block; 111. Hollow cylinder; 112. Movable rod; 113. Hollow plate; 114. T-shaped plate; 115. Return spring; 116. Rotating rod; 117. Linkage plate; 121. Outer frame; 122. T-shaped rod; 123. Spring sheet; 124. Rectangular plate; 125. Telescopic frame; 126. Roller; 127. Elastic sheet; 128. Pull rod. Detailed Implementation

[0020] 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1-6One embodiment of the present invention is: an intelligent and clean biomass fluidized bed combustion furnace, comprising a combustion boiler and a flue gas emission chamber 1. The combustion boiler is equipped with an exhaust pipe and a feed pipe. The flue gas emission chamber 1 is internally divided into two chambers, with a through hole between the two chambers. The flue gas emission chamber 1 and the exhaust pipe of the combustion boiler are fixedly connected. The furnace also includes: a material conveying channel 2, which is fixedly penetrates the inner and outer walls of the flue gas emission chamber 1 and is fixedly connected to the feed pipe of the combustion boiler. A temperature sensor is provided on the surface of the material conveying channel 2 for monitoring the temperature. A preheating frame 3 is fixedly installed on the inner wall of the material conveying channel 2; a guide plate 4 is fixedly installed on the inner wall of the preheating frame 3; a heat-conducting frame 5 is fixedly installed through the inner and outer walls of the material conveying channel 2, and the heat-conducting frame 5 is in contact with the outer wall of the preheating frame 3; a heat-conducting rod 6 is set on the inner wall of the heat-conducting frame 5, and the circumferential surface of the heat-conducting rod 6 is in contact with the through hole; and a heat-insulating handle 7 is fixedly installed on the right side of the heat-conducting rod 6. By setting multiple heat-conducting rods 6, the preheating frame 3 can be heated evenly, ensuring that the moisture in the biomass fuel evaporates effectively and further improving the combustion efficiency.

[0022] A circular hole is provided on the side of the flue gas emission chamber 1 near the heat-insulating handle 7. The circumferential surface of the heat-conducting rod 6 contacts the circular hole, and the heat-insulating handle 7 contacts the outer wall of the flue gas emission chamber 1. The stable fit between the heat-insulating handle 7 and the outer wall of the flue gas emission chamber 1 reduces the leakage of flue gas, thereby improving the cleanliness of the working environment.

[0023] A sleeve plate 8 is fixedly installed on the circumferential surface of the heat-insulating handle 7. A fixing frame 9 is fixedly installed on the outer wall of the material conveying channel 2. A round block 10 is fixedly installed on the side of the fixing frame 9 away from the heat-conducting frame 5. A conical groove is opened on the side of the round block 10 away from the fixing frame 9. The conical groove contacts the heat-conducting rod 6. By setting the round block 10, dust particles are effectively prevented from entering the interior of the heat-conducting frame 5 and from accumulating on the contact surface between the heat-conducting frame 5 and the heat-conducting rod 6, thereby maintaining a long-term stable heat conduction efficiency.

[0024] An operating method for an intelligent and clean biomass fluidized bed combustion furnace, using the aforementioned intelligent and clean biomass fluidized bed combustion furnace, includes the following steps: Step 1: Biomass fuel enters the preheating frame 3 through the conveying channel 2 and comes into contact with the guide plate 4 during its descent. The inclined design of the guide plate 4 causes the biomass fuel to move slowly downward. Step 2: After the biomass fuel separates from the guide plate 4, it falls under the action of gravity. During the falling process, the biomass fuel enters the combustion boiler through the feed pipe. Step 3: In the combustion boiler, biomass fuel is first fluidized by airflow, and then efficiently combusted in a fully mixed fluidized state; Step 4: The high-temperature flue gas generated during combustion enters the flue gas emission chamber 1 through the exhaust pipe and is then discharged upwards.

[0025] In this embodiment, biomass fuel enters the preheating frame 3 through the feeding channel 2 and comes into contact with the guide plate 4 during its descent. The inclined design of the guide plate 4 causes the biomass fuel to move slowly downwards, extending its residence time. After separating from the guide plate 4, the biomass fuel enters the combustion boiler through the feed pipe. Inside the combustion boiler, the biomass fuel first achieves fluidization through airflow, and then burns efficiently in a fully mixed fluidized state. The high-temperature flue gas generated during combustion enters the flue gas emission chamber 1 through the exhaust pipe and is then discharged upwards. During the flue gas flow, the high-temperature gas comes into contact with the end of the heat-conducting rod 6 away from the heat-insulating handle 7. Through heat exchange, the temperature of the heat-conducting rod 6 rises rapidly. The heat-conducting rod 6 evenly conducts heat to the closely contacting heat-conducting frame 5, and the heat-conducting frame 5 then evenly transfers heat to the preheating frame 3, causing the overall temperature of the preheating frame 3 to rise. At this time, when the newly added biomass fuel moves within the preheating frame 3, its surface moisture... The high-temperature environment of the preheating frame 3 is fully evaporated. By setting multiple heat-conducting rods 6, the preheating frame 3 can be heated evenly, ensuring that the moisture in the biomass fuel is effectively evaporated, further improving the combustion efficiency. When replacing the heat-conducting rods 6 during shutdown, after wearing the prescribed protective clothing, manually pull the heat-insulating handle 7 to move it away from the flue gas emission chamber 1. The movement of the heat-insulating handle 7 drives the heat-conducting rod 6 and the sleeve plate 8 to move synchronously. The heat-conducting rod 6 first disengages from the through hole, then gradually separates from the round block 10 and the heat-conducting frame 5, and finally is pulled out from the round hole, completing the disassembly. At the same time, during the movement of the heat-conducting rod 6, the dust particles adhering to the surface are scraped off by the conical surface of the round block 10. Most of the dust particles are blocked on the outside of the round block 10. By setting the round block 10, it is effective to prevent dust particles from entering the interior of the heat-conducting frame 5 and to prevent dust particles from accumulating on the contact surface between the heat-conducting frame 5 and the heat-conducting rod 6, thereby maintaining a long-term stable heat conduction efficiency.

[0026] Please see Figures 1-10In another embodiment of the present invention, based on the above embodiments, the outer wall of the flue gas emission chamber 1 is provided with a control device for driving the heat-conducting rod 6 to move. The control device is provided with a locking device for improving operational convenience. The control device includes a hollow cylinder 111, a movable rod 112, a hollow plate 113, a T-shaped plate 114, and a return spring 115. The hollow cylinder 111 is fixedly installed on the surface of the flue gas emission chamber 1. The movable rod 112 slides through the inner and outer walls of the hollow cylinder 111. The hollow plate 113 is fixedly installed on the circumferential surface of the movable rod 112. The T-shaped plate 114 slides through the side of the hollow plate 113 away from the movable rod 112. The return spring 115 is disposed between the T-shaped plate 114 and the hollow plate 113. A groove is formed on the surface of the T-shaped plate 114. The sleeve plate 8 contacts the groove. The stable contact between the T-shaped plate 114 and the sleeve plate 8 can prevent the heat-conducting rod 6 from shifting during operation and can also efficiently disassemble the heat-conducting rod 6.

[0027] A mounting bracket is provided on the outer wall of the T-shaped plate 114. A rotating rod 116 is rotatably passed through the surface of the mounting bracket. The rotating rod 116 contacts the inner wall of the hollow cylinder 111. By providing the rotating rod 116 on the hollow plate 113, the hollow plate 113 can move smoothly, and the burden on the electric push rod driving the movable rod 112 is reduced.

[0028] A linkage plate 117 is fixedly installed on the side of the T-shaped plate 114 away from the flue gas emission chamber 1. A rectangular groove is opened on the side of the linkage plate 117 away from the T-shaped plate 114, and an inclined surface is opened on the side of the linkage plate 117 near the movable rod 112. Through the groove design, the T-shaped plate 114 can both limit the sleeve plate 8 and push the sleeve plate 8 to move.

[0029] The locking device includes an outer frame 121, a T-shaped rod 122, a spring piece 123, a rectangular plate 124, a telescopic frame 125, a roller 126, and an elastic piece 127. The outer frame 121 is fixedly installed on the outer wall of the hollow plate 113. The T-shaped rod 122 slides through the inner and outer walls of the outer frame 121. The spring piece 123 is disposed between the T-shaped rod 122 and the outer frame 121. The rectangular plate 124 is fixedly installed on the side of the T-shaped rod 122 away from the outer frame 121. The telescopic frame 125 slides on the inner wall of the rectangular plate 124. The roller 126 rotates through the surface of the telescopic frame 125. The elastic piece 127 is disposed between the telescopic frame 125 and the rectangular plate 124. The roller 126 moves back and forth to limit the linkage plate 117, ensuring that the T-shaped plate 114 will not obstruct the disassembly of the heat-conducting rod 6, which helps to improve the disassembly efficiency.

[0030] A pull rod 128 slides through the inner and outer walls of the rectangular plate 124. The pull rod 128 and the side of the telescopic frame 125 away from the roller 126 are fixedly connected. Through various limiting methods, the flexibility of the limiting operation is improved, and the situation of the telescopic frame 125 getting stuck can be effectively dealt with, ensuring the smooth disassembly.

[0031] In this embodiment, when disassembling a designated heat-conducting rod 6, the T-shaped plate 114 is manually pushed towards the hollow plate 113. During this movement, the groove of the T-shaped plate 114 disengages from the sleeve plate 8, and simultaneously moves the linkage plate 117. At the same time, the T-shaped plate 114 moves to compress the return spring 115. After the T-shaped plate 114 reaches the designated position, the heat-insulating handle 7 is pulled to disassemble it. After disassembly, the return spring 115 returns to its original position, pushing the T-shaped plate 114 back to its original position. When disassembling all the heat-conducting rods 6, the movable rod 112 is driven by an electric push rod to move away from the flue gas emission chamber 1. The movement of the movable rod 112 causes the hollow plate 113 to move synchronously, which in turn causes the T-shaped plate 114 to move synchronously. The movement of the T-shaped plate 114 causes the sleeve plate 8 to move synchronously. The synchronous movement of the hollow plate 113 drives all the heat-conducting rods 6 to move. When the movable rod 112 stops moving, it pushes the T-shaped plate 114 to remove the heat-conducting rods 6. The T-shaped plate 114 makes stable contact with the sleeve plate 8, which can prevent the heat-conducting rods 6 from shifting during operation and can efficiently disassemble the heat-conducting rods 6. The movement of the hollow plate 113 drives the rotating rod 116 to move synchronously. The rotating rod 116 moves and rubs against the hollow cylinder 111 it contacts, causing the rotating rod 116 to rotate on the hollow cylinder 111. While the rotating rod 116 is rotating, it provides additional support for the moving hollow plate 113. The hollow plate 113 moves smoothly under the action of additional support. By setting the rotating rod 116 on the hollow plate 113, the hollow plate 113 can move smoothly and the burden on the electric push rod driving the movable rod 112 is reduced. When the linkage plate 117 moves towards the outer frame 121, the inclined surface of the linkage plate 117 contacts the roller 126. At this time, the movement of the linkage plate 117 applies a pushing force to the roller 126, causing the roller 126 to move away from the outer frame 121. The movement of the roller 126 drives the telescopic frame 125 and the pull rod 128 to move synchronously. The movement of the telescopic frame 125 compresses the elastic plate 127. When the linkage plate 117 reaches the designated position, the roller 126 and the linkage plate 117 disengage, and the deformed elastic plate 127 pushes the telescopic frame 125 to reset. The movement of the telescopic frame 125 drives the roller 126 to reset. During the reset process, the roller 126 passes through the rectangular groove to limit the linkage plate 117, keeping the T-shaped plate 114 stationary at the designated position. After the heat-conducting rod 6 is disassembled, the pull rod 128 is manually pulled to quickly release the limit. The back-and-forth movement of the roller 126 limits the linkage plate 117, ensuring that the T-shaped plate 114 remains stationary at the designated position. Plate 114 does not obstruct the disassembly of the heat-conducting rod 6, which helps improve disassembly efficiency. It applies a limit to the linkage plate 117 and can also actively pull the rectangular plate 124 to move it away from the outer frame 121. The movement of the rectangular plate 124 drives the T-shaped rod 122 to move synchronously. The movement of the T-shaped rod 122 compresses the spring 123 and drives the telescopic frame 125 to move synchronously. The movement of the telescopic frame 125 drives the roller 126 to move synchronously. When the linkage plate 117 reaches the designated position, the rectangular plate 124 is released, the spring 123 returns to its original position and pushes the T-shaped rod 122 to reset. The T-shaped rod 122 drives the rectangular plate 124 to reset. The rectangular plate 124 drives the telescopic frame 125 to move to the starting position, so that the roller 126 passes through the rectangular groove for limit. Through multiple limit methods, it helps to improve the flexibility of the limit operation and can effectively deal with situations such as the telescopic frame 125 getting stuck, ensuring the smooth progress of disassembly.

[0032] 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 variations 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. An intelligent and clean biomass fluidized bed combustion furnace, comprising a combustion boiler and a flue gas emission chamber, wherein the combustion boiler is provided with an exhaust pipe and a feed pipe, the flue gas emission chamber is internally divided into two chambers, a through hole is provided between the two chambers, and the flue gas emission chamber and the exhaust pipe of the combustion boiler are fixedly connected, characterized in that, include: The material conveying channel is fixedly installed through the inner and outer walls of the flue gas emission chamber. The material conveying channel is fixedly connected to the feed pipe of the combustion boiler. A temperature sensor is installed on the surface of the material conveying channel for monitoring the temperature. A preheating frame, which is fixedly installed on the inner wall of the material conveying channel; A guide plate, which is fixedly installed on the inner wall of the preheating frame; A heat-conducting frame is fixedly inserted through the inner and outer walls of the material conveying channel, and the heat-conducting frame is in contact with the outer wall of the preheating frame; A heat-conducting rod is disposed on the inner wall of the heat-conducting frame, and the circumferential surface of the heat-conducting rod contacts the through hole; A heat-insulating handle is fixedly installed on the side of the heat-conducting rod away from the flue gas emission chamber; A sleeve plate is fixedly installed on the circumferential surface of the heat-insulating handle, a fixing frame is fixedly installed on the outer wall of the material conveying channel, a round block is fixedly installed on the side of the fixing frame away from the heat-conducting frame, and a conical groove is opened on the side of the round block away from the fixing frame, and the conical groove is in contact with the heat-conducting rod. A circular hole is provided on the side of the flue gas emission chamber near the heat-insulating handle, the circumferential surface of the heat-conducting rod contacts the circular hole, and the heat-insulating handle contacts the outer wall of the flue gas emission chamber. The outer wall of the flue gas emission chamber is equipped with a control device for driving the heat-conducting rod to move, and the control device is equipped with a locking device to improve the convenience of operation. The locking device includes an outer frame, a T-shaped rod, a spring, a rectangular plate, a telescopic frame, rollers, and an elastic sheet. The outer frame is fixedly installed on the outer wall of the hollow plate. The T-shaped rod slides through the inner and outer walls of the outer frame. The spring is disposed between the T-shaped rod and the outer frame. The rectangular plate is fixedly installed on the side of the T-shaped rod away from the outer frame. The telescopic frame slides on the inner wall of the rectangular plate. The rollers rotate through the surface of the telescopic frame. The elastic sheet is disposed between the telescopic frame and the rectangular plate. The control device includes a hollow cylinder, a movable rod, a hollow plate, a T-shaped plate, and a return spring. The hollow cylinder is fixedly installed on the surface of the flue gas emission chamber. The movable rod slides through the inner and outer walls of the hollow cylinder. The hollow plate is fixedly installed on the circumferential surface of the movable rod. The T-shaped plate slides through the side of the hollow plate away from the movable rod. The return spring is disposed between the T-shaped plate and the hollow plate. A groove is formed on the surface of the T-shaped plate, and the sleeve plate contacts the groove. A linkage plate is fixedly installed on the side of the T-shaped plate away from the flue gas emission chamber. A rectangular groove is opened on the side of the linkage plate away from the T-shaped plate, and an inclined surface is opened on the side of the linkage plate near the movable rod. The outer wall of the T-shaped plate is provided with a mounting bracket, and a rotating rod is rotatably passed through the surface of the mounting bracket, and the rotating rod is in contact with the inner wall of the hollow cylinder; A tie rod slides through the inner and outer walls of the rectangular plate, and the tie rod is fixedly connected to the side of the telescopic frame away from the roller.

2. An operating method for an intelligent and clean biomass fluidized bed combustion furnace, using the intelligent and clean biomass fluidized bed combustion furnace as described in claim 1, characterized in that, Includes the following steps: Step 1: Biomass fuel enters the preheating frame through the conveying channel and comes into contact with the guide plate during its descent. The inclined design of the guide plate causes the biomass fuel to move slowly downward. Step 2: After the biomass fuel separates from the guide plate, it falls under the action of gravity. During the falling process, the biomass fuel enters the combustion boiler through the feed pipe. Step 3: In the combustion boiler, biomass fuel is first fluidized by airflow, and then efficiently combusted in a fully mixed fluidized state; Step 4: The high-temperature flue gas generated during combustion enters the flue gas emission chamber through the exhaust pipe and is then discharged upwards.

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