A flue gas waste heat recovery and utilization device with regulating function

Abstract

The present invention provides a flue gas waste heat recovery and utilization device with an adjustment function, which belongs to the technical field of waste heat recovery and utilization. It includes: an exhaust pipe, a fixed plate fixedly connected to the outer wall of the exhaust pipe near the bottom, a leaching barrel fixedly connected to the top of the fixed plate, and a drain pipe fixedly connected to one side of the leaching barrel, and also includes: a heat exchange mechanism; a driving mechanism; an adjustment mechanism; a powder filtering mechanism. The flue gas waste heat recovery and utilization device with an adjustment function proposed by the invention, on the basis of the existing recovery and utilization device, adds an adjustment mechanism that can automatically adjust the flue gas emission speed, so that the flue gas can stay in the exhaust pipe for a long time and completely fill the exhaust pipe, so that the heat exchange mechanism can fully absorb the waste heat in the flue gas, and also adds a powder filtering mechanism that can filter the dust in the flue gas to prevent the dust in the flue gas from being directly discharged into the atmosphere, thereby providing good protection for the atmospheric environment.

Description

Technical Field

[0001] The invention relates to the field of waste heat recovery and utilization, and in particular to a flue gas waste heat recovery and utilization device with a regulating function. Background Art

[0002] After searching, the invention patent with Chinese patent number CN103575135A discloses a flue gas waste heat recovery device. It includes a water tank filled with water, an air inlet pipe is provided at the bottom end, an exhaust pipe is provided at the top, and a plurality of air guide bends are provided inside the water tank. The two ends of the air guide bends are respectively collected together and connected to the air inlet pipe and the exhaust pipe respectively; a water inlet for replenishing water source is also provided at the top of the water tank, and a water outlet is also provided at the bottom end of the side wall. The invention has a simple structure and good effect of flue gas waste heat recovery.

[0003] However, in the process of flue gas recovery, since the flow rate of flue gas is not fixed, while the exhaust port diameter of the flue gas duct is fixed, resulting in a certain flue gas emission speed. When the flue gas flow rate is small, the heat in the flue gas will not be fully absorbed, resulting in a waste of waste heat of the flue gas. In addition, in the process of flue gas emission, since the flue gas contains dust, if the dust in the flue gas is not effectively treated, the dust in the flue gas will enter the atmospheric environment, and the sulfur and nitrogen elements in the dust will pollute the atmospheric environment.

[0004] How to invent a flue gas waste heat recovery and utilization device with an adjustment function to improve these problems has become an urgent problem to be solved by technical personnel in this field. Summary of the invention

[0005] In order to make up for the above deficiencies, the present invention provides a flue gas waste heat recovery and utilization device with an adjustment function, aiming to improve the problem that the exhaust volume cannot be adjusted according to the flue gas flow rate.

[0006] The present invention is achieved in that:

[0007] The present invention provides a flue gas waste heat recovery and utilization device with a regulating function, comprising:

[0008] An exhaust pipe, a fixing plate is fixedly connected to the outer wall of the exhaust pipe near the bottom, a leaching bucket is fixedly connected to the top of the fixing plate, a drain pipe is fixedly connected to one side of the leaching bucket, and further includes:

[0009] A heat exchange mechanism, the heat exchange mechanism is installed on the top of the fixed plate, and the heat exchange structure is wound on the outer wall of the exhaust pipe, and the heat exchange mechanism is used to absorb the heat of the flue gas when the exhaust pipe is exhausting;

[0010] The driving mechanism is installed inside the exhaust pipe and is used to provide different rotation speeds according to the flue gas flow rate to drive the internal mechanism of the exhaust pipe to work;

[0011] The regulating mechanism is installed inside the exhaust pipe and driven by the driving mechanism. The regulating mechanism is used to adjust the exhaust speed of the flue gas;

[0012] The powder filtering mechanism is used to filter the dust in the flue gas. The powder filtering mechanism is installed at the bottom of the regulating mechanism. The powder filtering mechanism is driven by the regulating mechanism, and the regulating mechanism can change the state of the powder filtering mechanism.

[0013] Preferably, the bottom of the inner wall of the leaching barrel is rotatably connected to a rotating rod, the top of the rotating rod is rotatably connected to a fixed frame, the outer wall of the rotating rod near the fixed frame is fixedly connected to an impeller, the outer wall of the rotating rod is fixedly connected to a filter cartridge, the side wall of the exhaust pipe is fixedly connected to a collecting ring, and the outer wall of the collecting ring is rotatably connected to a sealing plate.

[0014] By adopting the above technical solution, the dissolution of sodium stannate and sodium arsenate contained in the alkaline slag is accelerated, thereby increasing the separation speed of antimony from tin and arsenic.

[0015] Preferably, the heat exchange mechanism includes a water pump installed on the top of the fixed plate, the outer wall of the water pump is fixedly connected to a water inlet pipe, the side of the water pump close to the exhaust pipe is fixedly connected to a heat exchange tube, and the end of the heat exchange tube away from the water pump is fixedly connected to a water pipe.

[0016] By adopting the above technical solution, the waste heat in the flue gas is effectively absorbed, and the heat exchange efficiency of the waste heat in the flue gas is guaranteed.

[0017] Preferably, the driving mechanism includes a connecting frame fixedly connected to the inner wall of the exhaust pipe, a rotating shaft is rotatably connected to the top middle portion of the connecting frame, fan blades are fixedly connected to the outer wall of the rotating shaft near the connecting frame, and a stabilizing frame is rotatably connected to the top of the rotating shaft.

[0018] By adopting the above technical solution, the power generated by the flue gas during emission is used to drive the driving mechanism to work, and then the driving mechanism drives the regulating mechanism and the powder filtering mechanism to work, thereby providing stable power for the operation of the device.

[0019] Preferably, the adjustment mechanism comprises a linkage frame rotatably connected to the inner side wall of the exhaust pipe, the inner side wall of the linkage frame is rotatably connected to the adjustment arc plate, and the bottom of the linkage frame is fixedly connected to a connecting rod.

[0020] By adopting the above technical solution, the smoke emission speed can be automatically adjusted so that the smoke can stay in the exhaust pipe for a longer time and completely fill the exhaust pipe, thereby allowing the heat exchange mechanism to fully absorb the residual heat in the smoke.

[0021] Preferably, the powder filtering mechanism includes an outer rotating ring rotatably connected to the inner wall of the exhaust pipe, the inner wall of the outer rotating ring is fixedly connected to an elastic filter screen, the inner wall of the elastic filter screen is fixedly connected to an inner sliding ring, and the top of the inner sliding ring is fixedly connected to a pull rope.

[0022] By adopting the above technical solution, the adjustment mechanism will change the state of the filter in the powder filter mechanism during operation, thereby changing the pore size of the filter to prevent dust from clogging the filter and affecting the flue gas emission efficiency. In this process, the dust filtered by the filter can enter the collection ring and be collected through the action of centrifugal force.

[0023] Preferably, one end of the water pipe away from the heat exchange pipe is arranged opposite to the outer wall of the impeller, the heat exchange pipe is wrapped around the outer wall of the exhaust pipe, and the water pipe passes through the side wall of the leaching barrel and extends to the interior of the leaching barrel.

[0024] Preferably, the outer wall of the stabilizing frame is fixedly connected to the top of the inner wall of the exhaust pipe, the outer wall of the rotating shaft is fixedly connected to the middle position of the linkage frame, the end of the adjusting arc plate away from the linkage frame is fitted with the outer wall of the rotating shaft, the bottom of the connecting rod is fixedly connected to the top of the outer rotating ring, the inner wall of the inner sliding ring is slidably connected to the outer wall of the rotating shaft, the end of the pull rope away from the inner sliding ring is fixedly connected to the bottom of the end of the adjusting arc plate away from the linkage frame, the pull rope passes through the bottom of the linkage frame and is slidably connected to the linkage frame, and the collecting ring is arranged opposite to the bottom of the elastic filter.

[0025] The beneficial effects of the present invention are:

[0026] 1. The present invention proposes a flue gas waste heat recovery and utilization device with an adjustment function. On the basis of the existing recovery and utilization device, an adjustment mechanism that can automatically adjust the flue gas emission speed is added, so that the flue gas can stay in the exhaust pipe for a long time and completely fill the exhaust pipe, so that the heat exchange mechanism can fully absorb the waste heat in the flue gas, and a powder filtering mechanism that can filter dust in the flue gas is also added to prevent the dust in the flue gas from being directly discharged into the atmosphere, thereby providing good protection for the atmospheric environment.

[0027] 2. The present invention proposes a flue gas waste heat recovery and utilization device with an adjusting function, which utilizes the power generated by the flue gas during emission to drive the driving mechanism to work, thereby enabling the driving mechanism to drive the adjusting mechanism and the powder filtering mechanism to work. During the operation of the adjusting mechanism and the powder filtering mechanism, the adjusting mechanism will change the state of the filter in the powder filtering mechanism during operation, thereby changing the pore size of the filter to prevent dust from clogging the filter and affecting the flue gas emission efficiency. In this process, the dust filtered by the filter can enter the collection ring and be collected through the action of centrifugal force. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is a three-dimensional structural schematic diagram of a flue gas waste heat recovery and utilization device with an adjustment function provided in an embodiment of the present invention;

[0030] Figure 2 It is a schematic diagram of a three-dimensional partially cutaway structure of the middle part of a flue gas waste heat recovery and utilization device with an adjustment function provided in an embodiment of the present invention;

[0031] Figure 3 It is a schematic diagram of the middle section structure of a flue gas waste heat recovery and utilization device with an adjustment function provided in an embodiment of the present invention;

[0032] Figure 4 It is a three-dimensional structural schematic diagram of a heat exchange mechanism, a driving mechanism, a regulating mechanism and a powder filtering mechanism of a flue gas waste heat recovery and utilization device with an adjusting function provided in an embodiment of the present invention;

[0033] Figure 5 It is a three-dimensional structural schematic diagram of a heat exchange mechanism of a flue gas waste heat recovery and utilization device with an adjustment function provided in an embodiment of the present invention;

[0034] Figure 6 It is a three-dimensional structural schematic diagram of a driving mechanism, a powder filtering mechanism and an adjusting mechanism of a flue gas waste heat recovery and utilization device with an adjusting function provided in an embodiment of the present invention.

[0035] In the figure: 1. exhaust pipe; 2. fixing plate; 3. leaching barrel; 4. drain pipe; 5. water pump; 6. water inlet pipe; 7. heat exchange pipe; 8. water pipe; 9. impeller; 10. rotating rod; 11. filter cartridge; 12. fixing frame; 13. fan blade; 14. rotating shaft; 15. connecting frame; 16. stabilizing frame; 17. linkage frame; 18. adjusting arc plate; 19. connecting rod; 20. outer rotating ring; 21. elastic filter screen; 22. inner sliding ring; 23. pull rope; 24. collecting ring; 25. sealing plate. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Embodiment 1

[0038] Reference Figure 1-6 , a flue gas waste heat recovery and utilization device with a regulating function, comprising:

[0039] An exhaust pipe 1, a fixing plate 2 is fixedly connected to the outer wall of the exhaust pipe 1 near the bottom, a leaching bucket 3 is fixedly connected to the top of the fixing plate 2, a drain pipe 4 is fixedly connected to one side of the leaching bucket 3, and further includes:

[0040] A heat exchange mechanism, which is installed on the top of the fixed plate 2 and is wound around the outer wall of the exhaust pipe 1. The heat exchange mechanism is used to absorb the heat of the flue gas when the exhaust pipe 1 is exhausting;

[0041] A driving mechanism, which is installed inside the exhaust pipe 1 and is used to provide different rotation speeds according to the flue gas flow rate to drive the internal mechanism of the exhaust pipe 1 to work;

[0042] The regulating mechanism is installed inside the exhaust pipe 1 and is driven by the driving mechanism. The regulating mechanism is used to adjust the emission speed of the flue gas.

[0043] Furthermore, a rotating rod 10 is rotatably connected to the bottom of the inner wall of the leaching barrel 3, a fixing frame 12 is rotatably connected to the top of the rotating rod 10, an impeller 9 is fixedly connected to the outer wall of the rotating rod 10 near the fixing frame 12, and a filter cartridge 11 is fixedly connected to the outer wall of the rotating rod 10.

[0044] On the basis of the above scheme, the heat exchange mechanism includes a water pump 5 installed on the top of the fixed plate 2, the outer wall of the water pump 5 is fixedly connected to a water inlet pipe 6, the side of the water pump 5 close to the exhaust pipe 1 is fixedly connected to a heat exchange tube 7, and the end of the heat exchange tube 7 away from the water pump 5 is fixedly connected to a water pipe 8.

[0045] On the basis of the above scheme, the driving mechanism includes a connecting frame 15 fixedly connected to the inner wall of the exhaust pipe 1, a rotating shaft 14 is rotatably connected to the top middle position of the connecting frame 15, a fan blade 13 is fixedly connected to the outer wall of the rotating shaft 14 near the connecting frame 15, and a stabilizing frame 16 is rotatably connected to the top of the rotating shaft 14.

[0046] On the basis of the above-mentioned solution, the regulating mechanism comprises a linkage frame 17 rotatably connected to the inner wall of the exhaust pipe 1 , and an regulating arc plate 18 is rotatably connected to the inner wall of the linkage frame 17 .

[0047] As a further solution of the present invention, one end of the water pipe 8 away from the heat exchange tube 7 is arranged opposite to the outer wall of the impeller 9, the heat exchange tube 7 is wrapped around the outer wall of the exhaust pipe 1, and the water pipe 8 passes through the side wall of the leaching barrel 3 and extends to the interior of the leaching barrel 3.

[0048] As a further solution of the present invention, the outer wall of the stabilizing frame 16 is fixedly connected to the top of the inner wall of the exhaust pipe 1, the outer wall of the rotating shaft 14 is fixedly connected to the middle position of the linkage frame 17, and the end of the adjusting arc plate 18 away from the linkage frame 17 is fitted with the outer wall of the rotating shaft 14.

[0049] The working principle of the flue gas waste heat recovery device with regulating function:

[0050] When in use, the flue gas is discharged through the exhaust pipe 1, and the main amount of alkaline slag is added into the filter cartridge 11, and then the water pump 5 is started so that the water inlet pipe 6 starts to draw water from the outside into the heat exchange tube 7, and then flows to the impeller 9 through the water pipe 8 so that the impeller 9 rotates, and then drives the rotating rod 10 to rotate so that the filter cartridge 11 rotates, so that the water that absorbs heat can fully contact with the alkaline slag;

[0051] And in this process, the flow of flue gas will drive the fan blades 13 to rotate, and then drive the rotating shaft 14 to rotate. The rotating shaft 14 will drive the linkage frame 17 to rotate, so that the adjusting arc plate 18 rotates outward under the action of centrifugal force and the flow of flue gas, which can effectively block the emission speed of flue gas and increase the residence time of flue gas in the exhaust pipe 1, so that the water in the heat exchange tube 7 can better absorb the heat of the flue gas in the exhaust pipe 1.

[0052] Embodiment 2

[0053] Reference Figure 1-6 , a flue gas waste heat recovery and utilization device with a regulating function, comprising:

[0054] An exhaust pipe 1, a fixing plate 2 is fixedly connected to the outer wall of the exhaust pipe 1 near the bottom, a leaching bucket 3 is fixedly connected to the top of the fixing plate 2, a drain pipe 4 is fixedly connected to one side of the leaching bucket 3, and further includes:

[0055] A heat exchange mechanism, which is installed on the top of the fixed plate 2 and is wound around the outer wall of the exhaust pipe 1. The heat exchange mechanism is used to absorb the heat of the flue gas when the exhaust pipe 1 is exhausting;

[0056] A driving mechanism, which is installed inside the exhaust pipe 1 and is used to provide different rotation speeds according to the flue gas flow rate to drive the internal mechanism of the exhaust pipe 1 to work;

[0057] A regulating mechanism, which is installed inside the exhaust pipe 1 and driven by a driving mechanism, and is used to adjust the exhaust speed of the flue gas;

[0058] The powder filtering mechanism is used to filter the dust in the flue gas. The powder filtering mechanism is installed at the bottom of the regulating mechanism. The powder filtering mechanism is driven by the regulating mechanism, and the regulating mechanism can change the state of the powder filtering mechanism.

[0059] Furthermore, the bottom of the inner wall of the leaching barrel 3 is rotatably connected to a rotating rod 10, the top of the rotating rod 10 is rotatably connected to a fixing frame 12, the outer wall of the rotating rod 10 near the fixing frame 12 is fixedly connected to an impeller 9, the outer wall of the rotating rod 10 is fixedly connected to a filter cartridge 11, the side wall of the exhaust pipe 1 is fixedly connected to a collecting ring 24, and the outer wall of the collecting ring 24 is rotatably connected to a sealing plate 25.

[0060] On the basis of the above scheme, the heat exchange mechanism includes a water pump 5 installed on the top of the fixed plate 2, the outer wall of the water pump 5 is fixedly connected to a water inlet pipe 6, the side of the water pump 5 close to the exhaust pipe 1 is fixedly connected to a heat exchange tube 7, and the end of the heat exchange tube 7 away from the water pump 5 is fixedly connected to a water pipe 8.

[0061] On the basis of the above scheme, the driving mechanism includes a connecting frame 15 fixedly connected to the inner wall of the exhaust pipe 1, a rotating shaft 14 is rotatably connected to the top middle position of the connecting frame 15, a fan blade 13 is fixedly connected to the outer wall of the rotating shaft 14 near the connecting frame 15, and a stabilizing frame 16 is rotatably connected to the top of the rotating shaft 14.

[0062] On the basis of the above scheme, the adjustment mechanism includes a linkage frame 17 rotatably connected to the inner wall of the exhaust pipe 1 , the inner wall of the linkage frame 17 is rotatably connected to an adjustment arc plate 18 , and the bottom of the linkage frame 17 is fixedly connected to a connecting rod 19 .

[0063] On the basis of the above scheme, the powder filtering mechanism includes an outer rotating ring 20 rotatably connected to the inner wall of the exhaust pipe 1, the inner wall of the outer rotating ring 20 is fixedly connected to an elastic filter screen 21, the inner wall of the elastic filter screen 21 is fixedly connected to an inner sliding ring 22, and the top of the inner sliding ring 22 is fixedly connected to a pull rope 23.

[0064] As a further solution of the present invention, one end of the water pipe 8 away from the heat exchange tube 7 is arranged opposite to the outer wall of the impeller 9, the heat exchange tube 7 is wrapped around the outer wall of the exhaust pipe 1, and the water pipe 8 passes through the side wall of the leaching barrel 3 and extends to the interior of the leaching barrel 3.

[0065] As a further solution of the present invention, the outer wall of the stabilizing frame 16 is fixedly connected to the top of the inner wall of the exhaust pipe 1, the outer wall of the rotating shaft 14 is fixedly connected to the middle position of the linkage frame 17, the end of the adjusting arc plate 18 away from the linkage frame 17 is fitted with the outer wall of the rotating shaft 14, the bottom of the connecting rod 19 is fixedly connected to the top of the outer rotating ring 20, the inner wall of the inner sliding ring 22 is slidably connected to the outer wall of the rotating shaft 14, the end of the pull rope 23 away from the inner sliding ring 22 is fixedly connected to the bottom of the end of the adjusting arc plate 18 away from the linkage frame 17, the pull rope 23 passes through the bottom of the linkage frame 17 and is slidably connected to the linkage frame 17, and the collecting ring 24 is arranged opposite to the bottom of the elastic filter screen 21.

[0066] The working principle of the flue gas waste heat recovery device with regulating function:

[0067] When in use, the flue gas is discharged through the exhaust pipe 1. During the discharge process, the elastic filter 21 filters the dust contained in the flue gas, and adds a main amount of alkaline slag into the filter cartridge 11. Then, the water pump 5 is started so that the water inlet pipe 6 starts to draw external water into the heat exchange tube 7, and then flows to the impeller 9 through the water pipe 8, so that the impeller 9 rotates, and then drives the rotating rod 10 to rotate, so that the filter cartridge 11 rotates, so that the water that absorbs heat can fully contact with the alkaline slag;

[0068] In this process, the flow of flue gas will drive the fan blades 13 to rotate, and then drive the rotating shaft 14 to rotate. The rotating shaft 14 will drive the linkage frame 17 to rotate, so that the regulating arc plate 18 rotates outward under the action of centrifugal force and the flow of flue gas, which can effectively block the discharge speed of flue gas, increase the retention time of flue gas in the exhaust pipe 1, so that the water in the heat exchange tube 7 can better absorb the heat of the flue gas in the exhaust pipe 1;

[0069] And in the process again, the rotation of the linkage frame 17 will also drive the outer rotating ring 20 to rotate through the connecting rod 19, and then drive the elastic filter 21 and the inner sliding ring 22 to rotate, and the adjusting arc plate 18 will pull the inner sliding ring 22 to slide upward through the pull rope 23 during the outward rotation, so that the elastic filter 21 will undergo elastic deformation, so that the dust adhered to the elastic filter 21 can slide along the elastic filter 21 to the collecting ring 24 under the action of the elastic deformation of the elastic filter 21 and the centrifugal force, preventing the blockage of the elastic filter 21 from affecting the emission efficiency of the flue gas, and can effectively filter the dust in the flue gas to prevent the dust in the flue gas from entering the atmospheric environment and polluting the atmospheric environment. After the dust is collected in the collecting ring 24 for a period of time, the dust can be discharged by opening the sealing plate 25.

[0070] It should be noted that the specific model and specifications of the water pump 5 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the field, so it will not be described in detail.

[0071] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A flue gas waste heat recovery and utilization device with a regulating function, comprising: An exhaust pipe (1), wherein a fixing plate (2) is fixedly connected to the outer wall of the exhaust pipe (1) near the bottom, a leaching bucket (3) is fixedly connected to the top of the fixing plate (2), and a drainage pipe (4) is fixedly connected to one side of the leaching bucket (3), characterized in that it also includes: A heat exchange mechanism, the heat exchange mechanism being mounted on the top of the fixing plate (2), and the heat exchange structure being wound around the outer wall of the exhaust pipe (1), the heat exchange mechanism being used to absorb the heat of the flue gas when the exhaust pipe (1) is exhausting; A driving mechanism, the driving mechanism being installed inside the exhaust pipe (1), the driving mechanism being used to provide different rotation speeds according to the flue gas flow rate to drive the internal mechanism of the exhaust pipe (1) to operate; A regulating mechanism, the regulating mechanism being installed inside the exhaust pipe (1), the regulating mechanism being driven by a driving mechanism, and the regulating mechanism being used to regulate the exhaust speed of the smoke; A powder filtering mechanism, which is used to filter dust in the flue gas, is installed at the bottom of the regulating mechanism, is driven by the regulating mechanism, and the regulating mechanism can change the state of the powder filtering mechanism; The bottom of the inner wall of the leaching barrel (3) is rotatably connected to a rotating rod (10), the top of the rotating rod (10) is rotatably connected to a fixing frame (12), the outer wall of the rotating rod (10) near the fixing frame (12) is fixedly connected to an impeller (9), the outer wall of the rotating rod (10) is fixedly connected to a filter cartridge (11), the side wall of the exhaust pipe (1) is fixedly connected to a collecting ring (24), the outer wall of the collecting ring (24) is rotatably connected to a sealing plate (25), the driving mechanism comprises a connecting frame (15) fixedly connected to the inner wall of the exhaust pipe (1), a rotating shaft (14) is rotatably connected to the middle of the top of the connecting frame (15), a fan blade (13) is fixedly connected to the outer wall of the rotating shaft (14) near the connecting frame (15), and the top of the rotating shaft (14) is rotatably connected to a stabilizing frame (16); The regulating mechanism comprises a linkage frame (17) rotatably connected to the inner wall of the exhaust pipe (1), the inner wall of the linkage frame (17) is rotatably connected to an regulating arc plate (18), the bottom of the linkage frame (17) is fixedly connected to a connecting rod (19), the powder filtering mechanism comprises an outer rotating ring (20) rotatably connected to the inner wall of the exhaust pipe (1), the inner wall of the outer rotating ring (20) is fixedly connected to an elastic filter screen (21), the inner wall of the elastic filter screen (21) is fixedly connected to an inner sliding ring (22), and the top of the inner sliding ring (22) is fixedly connected to a pull rope (23); The outer wall of the stabilizing frame (16) is fixedly connected to the top of the inner wall of the exhaust pipe (1), the outer wall of the rotating shaft (14) is fixedly connected to the middle position of the linkage frame (17), the end of the adjusting arc plate (18) away from the linkage frame (17) is in contact with the outer wall of the rotating shaft (14), the bottom of the connecting rod (19) is fixedly connected to the top of the outer rotating ring (20), the inner wall of the inner sliding ring (22) is slidably connected to the outer wall of the rotating shaft (14), the end of the pull rope (23) away from the inner sliding ring (22) is fixedly connected to the bottom of the end of the adjusting arc plate (18) away from the linkage frame (17), the pull rope (23) passes through the bottom of the linkage frame (17) and is slidably connected to the linkage frame (17), and the collecting ring (24) is arranged opposite to the bottom of the elastic filter screen (21).

2. The flue gas waste heat recovery and utilization device with regulating function according to claim 1 is characterized in that: The heat exchange mechanism comprises a water pump (5) mounted on the top of the fixed plate (2); an outer wall of the water pump (5) is fixedly connected to a water inlet pipe (6); a side of the water pump (5) close to the exhaust pipe (1) is fixedly connected to a heat exchange pipe (7); and an end of the heat exchange pipe (7) away from the water pump (5) is fixedly connected to a water pipe (8).

3. The flue gas waste heat recovery and utilization device with regulating function according to claim 2 is characterized in that: One end of the water pipe (8) away from the heat exchange pipe (7) is arranged opposite to the outer wall of the impeller (9); the heat exchange pipe (7) is wound around the outer wall of the exhaust pipe (1); and the water pipe (8) penetrates the side wall of the leaching barrel (3) and extends to the interior of the leaching barrel (3).

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