Intelligent clean biomass fluidized bed combustion furnace and method

Abstract

The invention discloses an intelligent clean biomass fluidized bed combustion furnace and method, and relates to the technical field of fluidized bed combustion furnaces, the intelligent clean biomass fluidized bed combustion furnace comprises a combustion boiler and a flue gas discharge bin, the combustion boiler is provided with an exhaust pipe and a feed pipe, the inner part of the flue gas discharge bin comprises two cavities, a through hole is formed between the two cavities, and the through hole is communicated with the exhaust pipe. The flue gas emission bin is fixedly connected with an exhaust pipe of a combustion boiler, the flue gas emission bin comprises a material conveying channel, the material conveying channel fixedly penetrates through the inner wall and the outer wall of the flue gas emission bin, the material conveying channel is fixedly connected with a feeding pipe of the combustion boiler, and a temperature sensor is arranged on the surface of the material conveying channel and used for monitoring the temperature; by arranging a round block, dust particles are effectively prevented from entering the heat conduction frame and being accumulated on the contact face of the heat conduction frame and the heat conduction rod, and therefore the long-term stable heat conduction efficiency is maintained.

Description

Technical Field

[0001] The present invention relates to the technical field of fluidized bed combustion furnaces, and in particular to an intelligent and clean biomass fluidized bed combustion furnace and a method thereof. Background Art

[0002] The intelligent clean biomass fluidized bed combustion furnace is an efficient and environmentally friendly energy conversion equipment that combines fluidized bed combustion technology, intelligent control system and clean emission technology, and is designed specifically 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 a mounting assembly, a mixing assembly, a feed assembly, a combustion furnace, and an exhaust gas circulation assembly. This patent can provide the combustion furnace with a uniform and continuous gas supply flow and biomass fuel, ensuring the uniformity of the combustion temperature in the combustion furnace. The gas supply flow is used 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, reducing sulfur dioxide emissions, and effectively controlling the generation of nitrogen oxides, improving energy efficiency, reducing energy waste, ensuring the combustion process is environmentally friendly and meets emission standards, and separating particulate matter from the initial combustion smoke, significantly reducing the pollution concentration of particulate matter in the combustion emissions, meeting environmental protection requirements.

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

[0005] In view of the deficiencies in the prior art, the present invention provides an intelligent and clean biomass fluidized bed combustion furnace and method, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an intelligent and clean biomass fluidized bed combustion furnace, including a combustion boiler and a flue gas discharge bin, the combustion boiler is provided with an exhaust pipe and a feed pipe, the interior of the flue gas discharge bin is divided into two chambers, a through hole is provided between the two chambers, the flue gas discharge bin and the exhaust pipe of the combustion boiler are fixedly connected, including: a feeding channel, the feeding channel is fixedly passed through the inner and outer walls of the flue gas discharge bin, the feeding channel and the feed pipe of the combustion boiler are fixedly connected, a temperature sensor is provided on the surface of the feeding channel, and the temperature sensor is used to monitor the temperature; a preheating frame, the preheating frame is fixedly installed in the feeding channel The inner wall of the conveying channel; a material guide plate, which is fixedly mounted on the inner wall of the preheating frame, and both the preheating frame and the material guide plate are thermally conductive. After the biomass fuel enters the preheating frame, it contacts the material guide plate during the falling process, and the inclined design of the material guide plate enables the biomass fuel to move slowly downward; a heat-conducting frame, which is fixed 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, which is arranged on the inner wall of the heat-conducting frame, and the circumferential surface of the heat-conducting rod is in contact with the through hole; a heat-insulating handle, which is fixedly mounted on the right side of the heat-conducting rod, and the heat-insulating handle is manually pulled to move it in the direction away from the smoke discharge bin, and the movement of the heat-insulating handle drives the heat-conducting rod to move synchronously.

[0007] According to the above technical solution, a circular hole is opened on one side of the smoke discharge bin close to the heat-insulating handle, and the circumferential surface of the heat-conducting rod is in contact with the circular hole. The heat-conducting rod first breaks away from contact with the through hole, then separates from the heat-conducting frame, and is finally pulled out of the circular hole. The heat-insulating handle is in contact with the outer wall of the smoke discharge bin.

[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 feeding 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 provided on the side of the round block away from the fixing frame. The conical groove is in contact with the heat-conducting rod. During the movement of the heat-conducting rod, dust particles adhered 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 smoke exhaust bin is provided with a control device for driving the movement of the heat-conducting rod, and the control device is provided with a locking device for improving the convenience of operation; the control device includes a hollow cylinder, a movable rod, a hollow plate, a T-shaped plate and a reset spring, the T-shaped plate moves to compress the reset spring, and after disassembly is completed, the reset spring restores and pushes the T-shaped plate to reset, the hollow cylinder is fixedly installed on the surface of the smoke exhaust bin, 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 reset spring is arranged between the T-shaped plate and the hollow plate, the surface of the T-shaped plate is provided with a groove, the sleeve plate is in contact with the groove, and 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, a mounting bracket is provided on the outer wall of the T-shaped plate, and a rotating rod is rotated through the surface of the mounting bracket. The rotating rod contacts the inner wall of the hollow cylinder, and the rotating rod moves and rubs against the hollow cylinder in contact, causing 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 smoke exhaust bin. The groove of the T-shaped plate is out of contact with 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 close to the movable rod.

[0012] According to the above technical solution, the locking device includes an outer frame, a T-shaped rod, a spring piece, a rectangular plate, a telescopic frame, a roller and an elastic piece. The linkage plate moves to apply 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 piece is arranged 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 is slidably installed on the inner wall of the rectangular plate, the roller rotates and passes through the surface of the telescopic frame, the elastic piece is arranged between the telescopic frame and the rectangular plate, the movement of the roller drives the telescopic frame and the pull rod to move synchronously, and the movement of the telescopic frame compresses the elastic piece.

[0013] According to the above technical solution, a pull rod is slidably passed through the inner and outer walls of the rectangular plate, and the pull rod is fixedly connected to the side of the telescopic frame away from the roller. After the heat conducting rod is disassembled, the pull rod is manually pulled to quickly release the limit.

[0014] An operating method of an intelligent and clean biomass fluidized bed combustion furnace, using the above-mentioned intelligent and clean biomass fluidized bed combustion furnace, includes the following steps: Step 1: The biomass fuel enters the preheating frame through the feeding channel and contacts the guide plate during the falling process. The inclined design of the guide plate allows the biomass fuel to move slowly downward; Step 2: After the biomass fuel is separated 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, the biomass fuel is first fluidized by the air flow and then efficiently burned in a fully mixed fluidized state; Step 4: The high-temperature flue gas generated during the combustion process enters the flue gas discharge bin through the exhaust pipe and is then discharged upward.

[0015] The present 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 up multiple heat-conducting rods, the preheating frame can be evenly heated to ensure that the moisture in the biomass fuel is effectively evaporated, further improving the combustion efficiency. At the same time, dust particles are blocked on the outside of the round block. By setting up the round block, dust particles are effectively prevented from entering the interior of the heat-conducting frame and dust particles are prevented from accumulating on the contact surface between the heat-conducting frame and the heat-conducting rod, thereby maintaining long-term stable heat conduction efficiency.

[0016] (2) In this intelligent and clean biomass fluidized bed combustion furnace, the movement of the T-shaped plate drives the movement of the sleeve plate, thereby driving the movement of all the heat-conducting rods. The stable contact between the T-shaped plate and the sleeve plate can not only prevent the heat-conducting rods from shifting during operation, but also enable efficient removal of the heat-conducting rods. At the same time, the rotating rods provide additional support for the hollow plate. By setting the rotating rods on the hollow plate, the hollow plate can move smoothly and reduce the burden of the electric push rod driving the movable rod.

[0017] (3) In this intelligent and clean biomass fluidized bed combustion furnace, the roller limits the linkage plate, so that the T-shaped plate remains stationary at the specified position. The linkage plate is limited by the back-and-forth movement of the roller, ensuring that the T-shaped plate will not cause obstruction when the heat-conducting rod is removed, which helps to improve the disassembly efficiency. At the same time, the rectangular plate can be actively pulled to limit the position. Through a variety of limiting methods, it helps to improve the flexibility of the limiting operation and can effectively deal with situations such as the telescopic frame being stuck, ensuring the smooth disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It 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 smoke exhaust bin of the present invention; Figure 3 This is a schematic diagram of the position structure of the smoke exhaust bin and the heat conducting rod of the present invention; Figure 4 This is a schematic diagram of the internal structure of the feed channel of the present invention; Figure 5 For the present invention Figure 4A in the middle is an enlarged structural diagram; Figure 6 This is a schematic diagram of the position structure of the guide plate 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 linkage plate and roller position structure of the present invention; Figure 10 It is a schematic diagram of the internal structure of the outer frame of the present invention.

[0019] In the figure: 1. Smoke exhaust bin; 2. Material conveying channel; 3. Preheating frame; 4. Material guide plate; 5. Heat-conducting frame; 6. Heat-conducting rod; 7. Heat-insulating handle; 8. Sleeve plate; 9. Fixed 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 piece; 124. Rectangular plate; 125. Telescopic frame; 126. Roller; 127. Elastic sheet; 128. Pull rod. DETAILED DESCRIPTION

[0020] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0021] See also Figures 1-6One embodiment of the present invention is: an intelligent and clean biomass fluidized bed combustion furnace, including a combustion boiler and a flue gas discharge bin 1, the combustion boiler is provided with an exhaust pipe and a feed pipe, the interior of the flue gas discharge bin 1 is divided into two chambers, a through hole is opened between the two chambers, the flue gas discharge bin 1 and the exhaust pipe of the combustion boiler are fixedly connected, including: a feeding channel 2, the feeding channel 2 is fixedly passed through the inner and outer walls of the flue gas discharge bin 1, the feeding channel 2 is fixedly connected to the feed pipe of the combustion boiler, and a temperature sensor is provided on the surface of the feeding channel 2, the temperature sensor is used to monitor the temperature; The heat frame 3 and the preheating frame 3 are fixedly mounted on the inner wall of the feeding channel 2; the guide plate 4 and the guide plate 4 are fixedly mounted on the inner wall of the preheating frame 3; the heat-conducting frame 5 and the heat-conducting frame 5 are fixedly passed through the inner and outer walls of the feeding channel 2, and the heat-conducting frame 5 is in contact with the outer wall of the preheating frame 3; the heat-conducting rod 6 and the heat-conducting rod 6 are arranged 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; the heat-insulating handle 7 and the heat-insulating handle 7 are fixedly mounted on the right side of the heat-conducting rod 6. By arranging multiple heat-conducting rods 6, the preheating frame 3 can be heated evenly, ensuring that the moisture in the biomass fuel is effectively evaporated, and further improving the combustion efficiency.

[0022] A circular hole is provided on one side of the smoke discharge bin 1 close to 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 smoke discharge bin 1. The heat-insulating handle 7 and the outer wall of the smoke discharge bin 1 are stably fitted together, which reduces the overflow of smoke and improves 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 feeding channel 2, and 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 provided on the side of the round block 10 away from the fixing frame 9, and the conical groove is in contact with the heat-conducting rod 6. By providing the round block 10, dust particles can be effectively prevented from entering the interior of the heat-conducting frame 5 and dust particles can be prevented from accumulating on the contact surface between the heat-conducting frame 5 and the heat-conducting rod 6, thereby maintaining long-term stable heat conduction efficiency.

[0024] An operating method of an intelligent and clean biomass fluidized bed combustion furnace, using the above-mentioned intelligent and clean biomass fluidized bed combustion furnace, includes the following steps: Step 1: The biomass fuel enters the preheating frame 3 through the feeding channel 2 and contacts the guide plate 4 during the falling process. The inclined design of the guide plate 4 allows the biomass fuel to move slowly downward; Step 2: After the biomass fuel is separated from the guide plate 4, it falls under the action of gravity, and the biomass fuel in the falling process enters the combustion boiler through the feed pipe; Step 3: In the combustion boiler, the biomass fuel is first fluidized by the air flow and then efficiently burned in a fully mixed fluidized state; Step 4: The high-temperature flue gas generated during the combustion process enters the flue gas discharge chamber 1 through the exhaust pipe and is then discharged upward.

[0025] When this embodiment is working, the biomass fuel enters the preheating frame 3 through the feeding channel 2 and contacts the guide plate 4 during the falling process. The inclined design of the guide plate 4 allows the biomass fuel to move downward slowly, prolonging its residence time. After separating from the guide plate 4, the biomass fuel enters the combustion boiler through the feed pipe; in the combustion boiler, the biomass fuel is first fluidized by the air flow, and then burns efficiently in a fully mixed fluidized state; the high-temperature flue gas generated during the combustion process enters the flue gas discharge bin 1 through the exhaust pipe, and then is discharged upward; during the flow of flue gas, the high-temperature gas contacts the end of the heat-conducting rod 6 away from the heat-insulating handle 7, and through heat exchange, the temperature of the heat-conducting rod 6 rises rapidly, and the heat-conducting rod 6 evenly transfers the heat to the closely contacted heat-conducting frame 5, and the heat-conducting frame 5 then evenly transfers the 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 in the preheating frame 3, its surface moisture is reduced due to The high temperature environment of the preheating frame 3 is fully evaporated. By setting up multiple heat-conducting rods 6, the preheating frame 3 can be evenly heated to ensure that the moisture in the biomass fuel is effectively evaporated, further improving the combustion efficiency. When replacing the heat-conducting rod 6 during the shutdown period, after wearing the prescribed protective clothing, manually pull the heat-insulating handle 7 to move it away from the flue gas discharge bin 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 breaks away from contact with the through hole, and then gradually separates from the round block 10 and the heat-conducting frame 5, and finally is pulled out of the round hole to complete the disassembly; at the same time, during the movement of the heat-conducting rod 6, the dust particles adhered to the surface are scraped off by the conical surface of the round block 10, and most of the dust particles are blocked on the outside of the round block 10. By setting the round block 10, dust particles are effectively prevented from entering the interior of the heat-conducting frame 5 and dust particles are prevented from accumulating on the contact surface between the heat-conducting frame 5 and the heat-conducting rod 6, thereby maintaining long-term stable heat conduction efficiency.

[0026] See also Figures 1-10, based on the above embodiment, in another embodiment of the present invention, the outer wall of the smoke exhaust bin 1 is provided with a control device for driving the heat-conducting rod 6 to move, and the control device is provided with a locking device for improving the convenience of operation; the control device includes a hollow cylinder 111, a movable rod 112, a hollow plate 113, a T-shaped plate 114 and a reset spring 115, the hollow cylinder 111 is fixedly mounted on the surface of the smoke exhaust bin 1, the movable rod 112 slides through the inner and outer walls of the hollow cylinder 111, the hollow plate 113 is fixedly mounted 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, and the reset spring 115 is arranged between the T-shaped plate 114 and the hollow plate 113, and a groove is opened on the surface of the T-shaped plate 114, and the sleeve plate 8 is in contact with the groove. Through the T-shaped plate 114, the sleeve plate 8 is in stable contact, which can prevent the heat-conducting rod 6 from deviating during operation and efficiently disassemble the 6 heat-conducting rods.

[0027] The outer wall of the T-shaped plate 114 is provided with a mounting frame, and a rotating rod 116 is rotated through the surface of the mounting frame. The rotating rod 116 is in contact with the inner wall of the hollow cylinder 111. By arranging the rotating rod 116 on the hollow plate 113, the hollow plate 113 can move smoothly and reduce the burden of the electric push rod driving the movable rod 112.

[0028] A linkage plate 117 is fixedly installed on the side of the T-shaped plate 114 away from the smoke exhaust bin 1. A rectangular groove is provided on the side of the linkage plate 117 away from the T-shaped plate 114, and an inclined surface is provided on the side of the linkage plate 117 close to 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 arranged 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 is slidably installed on the inner wall of the rectangular plate 124, the roller 126 rotates and passes through the surface of the telescopic frame 125, and the elastic piece 127 is arranged between the telescopic frame 125 and the rectangular plate 124. The linkage plate 117 is limited by the back and forth movement of the roller 126 to ensure that the T-shaped plate 114 will not cause obstruction when disassembling 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 is fixedly connected to the side of the telescopic frame 125 away from the roller 126. Through a variety of limiting methods, it helps to improve the flexibility of the limiting operation and can effectively deal with situations such as the telescopic frame 125 getting stuck, thereby ensuring smooth disassembly.

[0031] When the present embodiment is working, when removing a specified heat-conducting rod 6, the T-shaped plate 114 is manually pushed to move in the direction of the hollow plate 113. The groove of the T-shaped plate 114 is out of contact with the sleeve plate 8 during the movement, and the linkage plate 117 is driven to move synchronously during the movement. At the same time, the T-shaped plate 114 moves and compresses the reset spring 115. When the T-shaped plate 114 moves to the specified position, the heat-insulating handle 7 is pulled to disassemble it. After the disassembly is completed, the reset spring 115 is restored to push the T-shaped plate 114 to reset. When all the heat-conducting rods 6 are removed, the movable rod 112 is driven by the electric push rod to move in the direction away from the smoke discharge bin 1. The movement of the movable rod 112 drives the hollow plate 113 to move synchronously. The movement of the hollow plate 113 drives the T-shaped plate 114 to move synchronously. The movement of the T-plate 114 drives the sleeve plate 8 The movable rod 112 moves synchronously, thereby driving all the heat-conducting rods 6 to move. When the movable rod 112 stops moving, the T-shaped plate 114 is pushed to remove the heat-conducting rod 6. The T-shaped plate 114 is in stable contact with the sleeve plate 8, which can prevent the heat-conducting rod 6 from deflecting during operation and efficiently remove the 6 heat-conducting rods. 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 in contact, causing the rotating rod 116 to rotate on the hollow cylinder 111. While the rotating rod 116 rotates, it provides additional support for the moving hollow plate 113. The hollow plate 113 moves smoothly under the action of the additional support. By arranging the rotating rod 116 on the hollow plate 113, the hollow plate 113 can move smoothly, and the burden of the electric push rod driving the movable rod 112 is reduced. When the linkage plate 117 moves in the direction of the outer frame 121, the inclined surface of the linkage plate 117 contacts the roller 126. At this time, the linkage plate 117 moves and applies a thrust to the roller 126, causing the roller 126 to move in the direction 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, and the telescopic frame 125 moves and compresses the elastic sheet 127; when the linkage plate 117 reaches the specified position, the roller 126 and the linkage plate 117 are disengaged, and the deformed elastic sheet 127 pushes the telescopic frame 125 to reset, and the telescopic frame 125 moves and drives the roller 126 to reset. During the resetting process, the roller 126 passes through the rectangular groove to limit the linkage plate 117, so that the T-shaped plate 114 remains stationary in the specified position. After the heat-conducting rod 6 is disassembled, the pull rod 128 is manually pulled to quickly release the limit, and the linkage plate 117 is limited by the back and forth movement of the roller 126 to ensure that the T-shaped When the link plate 117 reaches the designated position, the rectangular plate 124 is released, the elastic piece 123 is restored 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, and the roller 126 passes through the rectangular groove for limiting. Through a variety of limiting methods, it helps to improve the flexibility of the limiting operation and effectively deal with situations such as the telescopic frame 125 being stuck, thereby ensuring the smooth disassembly.

[0032] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention 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 discharge chamber (1), wherein the combustion boiler is provided with an exhaust pipe and a feed pipe, the interior of the flue gas discharge chamber (1) is divided into two chambers, a through hole is provided between the two chambers, the flue gas discharge chamber (1) is fixedly connected to the exhaust pipe of the combustion boiler, and is characterized in that: include: A material delivery channel (2), the material delivery channel (2) is fixedly passed through the inner and outer walls of the smoke discharge bin (1), the material delivery channel (2) is fixedly connected to the feed pipe of the combustion boiler, and a temperature sensor is provided on the surface of the material delivery channel (2), and the temperature sensor is used to monitor the temperature; A preheating frame (3), wherein the preheating frame (3) is fixedly mounted on the inner wall of the feeding channel (2); A material guide plate (4), wherein the material guide plate (4) is fixedly mounted on the inner wall of the preheating frame (3); A heat-conducting frame (5), the heat-conducting frame (5) is fixedly connected to 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), the heat-conducting rod (6) being arranged on the inner wall of the heat-conducting frame (5), the circumferential surface of the heat-conducting rod (6) being in contact with the through hole; A heat-insulating handle (7) is fixedly mounted on the right side of the heat-conducting rod (6).

2. The intelligent and clean biomass fluidized bed combustion furnace according to claim 1, characterized in that: A circular hole is provided on one side of the smoke discharge chamber (1) close to 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 smoke discharge chamber (1); The outer wall of the smoke exhaust bin (1) is provided with a control device for driving the heat conducting rod (6) to move, and the control device is provided with a locking device for improving the convenience of operation.

3. The intelligent and clean biomass fluidized bed combustion furnace according to claim 2, characterized in that: A sleeve plate (8) is fixedly mounted on the circumferential surface of the heat-insulating handle (7), a fixing frame (9) is fixedly mounted on the outer wall of the feed channel (2), a round block (10) is fixedly mounted on the side of the fixing frame (9) away from the heat-conducting frame (5), and a conical groove is formed on the side of the round block (10) away from the fixing frame (9), and the conical groove is in contact with the heat-conducting rod (6).

4. The intelligent and clean biomass fluidized bed combustion furnace according to claim 3, characterized in that: The control device comprises a hollow cylinder (111), a movable rod (112), a hollow plate (113), a T-shaped plate (114) and a reset spring (115); the hollow cylinder (111) is fixedly mounted on the surface of the smoke exhaust bin (1); the movable rod (112) slides through the inner and outer walls of the hollow cylinder (111); the hollow plate (113) is fixedly mounted 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 reset spring (115) is arranged between the T-shaped plate (114) and the hollow plate (113); a groove is provided on the surface of the T-shaped plate (114); and the sleeve plate (8) contacts the groove.

5. The intelligent and clean biomass fluidized bed combustion furnace according to claim 4, characterized in that: A mounting frame is provided on the outer wall of the T-shaped plate (114), and a rotating rod (116) is rotatably passed through the surface of the mounting frame. The rotating rod (116) is in contact with the inner wall of the hollow cylinder (111).

6. The intelligent and clean biomass fluidized bed combustion furnace according to claim 5, characterized in that: A linkage plate (117) is fixedly mounted on a side of the T-shaped plate (114) away from the smoke exhaust bin (1); a rectangular groove is provided on a side of the linkage plate (117) away from the T-shaped plate (114); and an inclined surface is provided on a side of the linkage plate (117) close to the movable rod (112).

7. The intelligent and clean biomass fluidized bed combustion furnace according to claim 6, characterized in that: The locking device comprises 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 mounted 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 arranged between the T-shaped rod (122) and the outer frame (121); the rectangular plate (124) is fixedly mounted on a side of the T-shaped rod (122) away from the outer frame (121); the telescopic frame (125) is slidably mounted on the inner wall of the rectangular plate (124); the roller (126) rotates and penetrates the surface of the telescopic frame (125); and the elastic piece (127) is arranged between the telescopic frame (125) and the rectangular plate (124).

8. The intelligent and clean biomass fluidized bed combustion furnace according to claim 7, characterized in that: A pull rod (128) is slidably passed through the inner and outer walls of the rectangular plate (124), and the pull rod (128) is fixedly connected to a side of the telescopic frame (125) away from the roller (126).

9. An operating method of an intelligent and clean biomass fluidized bed combustion furnace, using the intelligent and clean biomass fluidized bed combustion furnace according to claim 8, characterized in that: The following steps are involved: Step 1: The biomass fuel enters the preheating frame (3) through the feeding channel (2) and contacts the guide plate (4) during the falling process. The inclined design of the guide plate (4) enables the biomass fuel to move slowly downward; Step 2: After the biomass fuel and the guide plate (4) are separated, they fall under the action of gravity, and the biomass fuel in the falling process enters the combustion boiler through the feed pipe; Step 3: In the combustion boiler, the biomass fuel is first fluidized by the air flow and then efficiently burned in a fully mixed fluidized state; Step 4: The high-temperature flue gas generated during the combustion process enters the flue gas discharge chamber (1) through the exhaust pipe and is then discharged upward.

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