Exhaust device for garbage incineration power plant

Abstract

The utility model discloses an exhaust device for a waste incineration power plant, which relates to the field of exhaust devices and comprises a smoke exhaust pipeline, one end of the smoke exhaust pipeline is fixedly connected with an ash removal pipeline, the top of the ash removal pipeline is fixedly connected with an exhaust pipe, and the bottom of the ash removal pipeline is fixedly connected with a sewage collecting pipe. And a dust falling assembly is arranged on one side of the interior of the dust removal pipeline. Through the arrangement of the ash removal pipeline, the dust falling assembly, the arc-shaped temperature difference power generation module plate and other parts, when ash-containing smoke is discharged from the interior of the smoke discharge pipeline, one end of the connecting water pipe is externally connected with a cold water source, and cold water passes through the mounting pipe, passes through the water supply pipe and is sprayed out of the spray head; sprayed water mist is combined with flue gas containing dust in the dust removal pipeline and water mist, so that the water mist falls into the dirt collection pipe through gravity, gas is exhausted through the exhaust pipe, the defect that traditional bag dust removal is high in maintenance frequency is overcome through the principle of water mist dust removal, maintenance is more convenient, and the ventilation quantity of a flue is not affected by water mist dust removal.

Description

Technical Field

[0001] The utility model relates to the field of exhaust devices, in particular to an exhaust device for a waste incineration power plant. Background Art

[0002] In the process of garbage incineration to generate electricity, it is necessary to discharge the waste during combustion through the exhaust device. The organic matter in the garbage is mainly discharged in the form of gaseous substances, while the inorganic matter mainly forms solid particles. Those fine particles float in the flue gas. These particles constitute 50% of the incineration fly ash. The remaining incineration fly ash comes from the limestone or activated carbon added during the flue gas purification process, and a large amount of fly ash will be generated during the exhaust process.

[0003] In order to solve the problem of fly ash generated during the exhaust process, electrostatic bags are often installed at the end of the exhaust device to remove the fly ash in the flue gas discharged from the flue, or mechanical filtration is used to filter the fly ash out of the flue gas using a filter and then treat it.

[0004] However, when using electrostatic bags or filters to remove fly ash in the flue, due to the large amount of fly ash, the bags or filters need to be replaced frequently, the maintenance frequency is too high, and it is extremely troublesome. Moreover, as the bags are used, dust adheres to the surface of the bags, clogging the holes, resulting in reduced ventilation and affecting boiler operation. Utility Model Content

[0005] Based on this, the purpose of the present invention is to provide an exhaust device for a waste incineration power plant to solve the technical problems mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an exhaust device for a waste incineration power plant, comprising a smoke exhaust pipe, one end of the smoke exhaust pipe is fixedly connected to an ash removal pipe, and the top of the ash removal pipe is fixedly connected to an exhaust pipe, the bottom of the ash removal pipe is fixedly connected to a sewage collecting pipe, a dust reduction assembly is provided on one side of the interior of the ash removal pipe, and an arc-shaped temperature difference power generation module plate is provided on the surface of the dust reduction assembly, a water baffle is fixedly installed on the other side of the interior of the ash removal pipe, and the water baffle is located above one end of the smoke exhaust pipe, and a cleaning assembly is provided between the middle part of the water baffle and the surface of the arc-shaped temperature difference power generation module plate.

[0007] By adopting the above technical solution, low-temperature ash removal water is introduced through a connecting water pipe, and high-temperature furnace smoke is guided for dust removal through the smoke exhaust pipe, and the temperature difference between the two is utilized through the arc-shaped thermoelectric power generation module plate arranged between the two, thereby increasing the power generation capacity, and through the setting of the cleaning component, the dust on the other side surface of the arc-shaped thermoelectric power generation module plate is cleaned, reducing the dust adhesion to the surface of the arc-shaped thermoelectric power generation module plate, thereby affecting the heating of the surface of the arc-shaped thermoelectric power generation module plate, and further improving the power generation efficiency of the arc-shaped thermoelectric power generation module plate.

[0008] The utility model is further configured such that the dust reduction component includes: a connecting water pipe, the connecting water pipe is fixedly installed horizontally on one side of the ash removal pipe, one end of the connecting water pipe extends to the outside of the ash removal pipe, the other end of the connecting water pipe is fixedly connected to a mounting pipe, and five water supply pipes are fixedly installed at equal intervals on the top of the mounting pipe, and a nozzle is fixedly connected to the top of the water supply pipe, and one side of the arc-shaped temperature difference power generation module plate is fixedly installed between the surfaces of one side of the five water supply pipes.

[0009] By adopting the above technical solution, when the ash-containing flue gas is discharged from the inside of the smoke exhaust duct, a cold water source is connected to one end of the water pipe. When the cold water passes through the installation pipe and the water supply pipe and is sprayed out from the nozzle, the sprayed water mist is sprayed in a certain arc to the other side of the ash removal duct. The dust-containing flue gas inside the ash removal duct combines with the water mist, so that it falls into the sewage collecting pipe by gravity, and the gas is discharged through the exhaust pipe. The principle of water mist dust removal avoids the disadvantage of high maintenance frequency of traditional bag dust removal, making maintenance more convenient, and water mist dust removal will not affect the ventilation volume of the flue.

[0010] The utility model is further configured such that the top wall of the smoke exhaust pipe is configured to be a cone with a smaller top and a larger bottom, and the nozzle is fixedly installed on the top of the water supply pipe at an angle, and the inclination angle of the nozzle is opposite to the inclination angle of the conical surface of the top wall of the smoke exhaust pipe.

[0011] By adopting the above technical solution, the nozzle is fixedly installed on the top of the water supply pipe through the tilt. When the cold water entering the connecting water pipe passes through the installation pipe and the water supply pipe and is sprayed out from the nozzle, the sprayed water mist is sprayed to the other side of the dust removal pipe in a certain arc. The flue gas containing dust in the dust removal pipe combines with the water mist, causing it to fall into the sewage collection pipe by gravity. At the same time, it can avoid the sprayed cold water directly acting on the surface of the arc-shaped thermoelectric power generation module plate to affect the heating of the other side of the arc-shaped thermoelectric power generation module plate.

[0012] The present invention is further configured such that one side of the water supply pipe is configured as an arc surface, and the arc surface on one side of the water supply pipe matches the surface on one side of the arc-shaped temperature difference power generation module plate.

[0013] By adopting the above technical solution, through the arc surface setting on one side of the water supply pipe, when the arc-shaped thermoelectric power generation module plate is installed between the sides of the five water supply pipes, the contact area between one side of the water supply pipe and one side of the arc-shaped thermoelectric power generation module plate can be increased, thereby increasing the heat exchange area between the two. When the temperature difference between the two is utilized through the arc-shaped thermoelectric power generation module plate, the power generation can be increased.

[0014] The utility model is further configured as follows: the cleaning assembly includes: a rotating shaft, the rotating shaft is vertically rotatably installed in the middle of the water baffle, the bottom of the rotating shaft is fixedly connected with six blades equidistantly along the circumference, the top of the rotating shaft is fixedly connected with a bevel gear, the surface of the upper end of the rotating shaft is fitted with an L-shaped fixing plate, and one end of the L-shaped fixing plate is fixedly installed on the other side of the dust removal pipe, the other end of the L-shaped fixing plate is horizontally rotatably installed with a bevel gear shaft, and the surface of one end of the bevel gear shaft is meshed with the surface of the bevel gear, the other end of the bevel gear shaft is fixedly connected with a brush plate, and one side of the brush plate is placed on the surface of the other side of the arc-shaped temperature difference power generation module plate.

[0015] By adopting the above technical solution, when the ash-containing flue gas is discharged from the inside of the smoke exhaust duct, due to the large exhaust air volume of the smoke exhaust duct, the exhausted air volume acts on the surface of the blades at the bottom of the rotating shaft, causing the blades to drive the rotating shaft to rotate. At this time, the bevel gear at the top of the rotating shaft engages and rotates with the bevel gear shaft, causing the bevel gear shaft to drive the brush plate at the other end to rotate, thereby cleaning the dust on the other side of the arc-shaped thermoelectric power generation module plate, reducing the dust adhering to the surface of the arc-shaped thermoelectric power generation module plate and affecting its surface heating, thereby further improving the power generation efficiency of the arc-shaped thermoelectric power generation module plate.

[0016] The utility model is further configured such that a bearing is installed at the position where the rotating shaft passes through the water baffle, and the inner ring of the bearing is fixed to the outer wall of the rotating shaft, and the outer ring of the bearing is fixed to the opening of the water baffle.

[0017] By adopting the above technical solution and arranging the bearings, the stability of the rotation of the shaft is improved.

[0018] The present invention is further configured such that the brush plate is an arc-shaped structure, and the surface on one side of the brush plate matches the surface on the other side of the arc-shaped temperature difference power generation module plate.

[0019] By adopting the above technical solution, since the surface of one side of the brush plate and the surface of the other side of the arc-shaped thermoelectric power generation module plate are matching arc-shaped surfaces, the dust attached to the surface of the other side of the arc-shaped thermoelectric power generation module plate is cleaned when the bevel gear shaft drives the brush plate to rotate, thereby avoiding excessive dust adhering to the surface of the arc-shaped thermoelectric power generation module plate and affecting the heating of the surface of the arc-shaped thermoelectric power generation module plate, thereby further improving the power generation efficiency of the arc-shaped thermoelectric power generation module plate.

[0020] The utility model is further configured such that a guide block is fixedly mounted on the bottom surface of the inner wall of the smoke exhaust duct, and the guide block has a triangular structure.

[0021] By adopting the above technical solution, when the nozzle is performing dust reduction, a small amount of water will enter the interior of the smoke exhaust pipe. The setting of the guide block can block the water entering the interior of the smoke exhaust pipe, preventing the water from flowing back into the furnace through the smoke exhaust pipe.

[0022] In summary, the present invention has the following beneficial effects:

[0023] 1. The utility model is provided with components such as an ash removal pipe, a dust reduction component and an arc-shaped temperature difference power generation module board. When the ash-containing flue gas is discharged from the exhaust pipe, a cold water source is connected to one end of the water pipe. When the cold water passes through the installation pipe and the water supply pipe and is sprayed out from the nozzle, the sprayed water mist combines with the dust-containing flue gas and water mist in the ash removal pipe, so that it falls into the sewage collection pipe by gravity, and the gas is discharged through the exhaust pipe. The principle of water mist ash removal avoids the disadvantage of high maintenance frequency of traditional bag dust removal, making maintenance more convenient, and water mist dust removal does not affect the ventilation volume of the flue. The low-temperature ash removal water introduced by the connecting water pipe and the high-temperature furnace smoke guided by the exhaust pipe are used for dust removal, and the temperature difference between the two is utilized by the arc-shaped temperature difference power generation module board arranged between the two, thereby increasing the power generation capacity.

[0024] 2. The utility model is equipped with components such as a smoke exhaust duct, an arc-shaped temperature difference power generation module plate and a cleaning assembly. When the ash-containing smoke is discharged from the inside of the smoke exhaust duct, due to the large exhaust air volume of the smoke exhaust duct, the exhausted air volume acts on the surface of the blades at the bottom of the rotating shaft, causing the blades to drive the rotating shaft to rotate. At this time, the bevel gear at the top of the rotating shaft engages and rotates with the bevel gear shaft, causing the bevel gear shaft to drive the brush plate at the other end to rotate, thereby cleaning the dust on the other side surface of the arc-shaped temperature difference power generation module plate, reducing the dust adhering to the surface of the arc-shaped temperature difference power generation module plate and affecting its surface heating, thereby further improving the power generation efficiency of the arc-shaped temperature difference power generation module plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the main view of the utility model;

[0026] Figure 2 This is a schematic diagram of a main cross-sectional view of the present utility model;

[0027] Figure 3 For the utility model Figure 2 A schematic diagram of the structure at center A;

[0028] Figure 4 It is a bottom sectional schematic diagram of the present invention.

[0029] In the figure: 1. Smoke exhaust duct; 101. Guide block; 2. Ash removal duct; 3. Exhaust pipe; 4. Sewage collecting pipe; 5. Dust suppression assembly; 501. Connecting water pipe; 502. Mounting pipe; 503. Water supply pipe; 504. Nozzle; 6. Arc-shaped temperature difference power generation module board; 7. Water baffle; 8. Cleaning assembly; 801. Rotating shaft; 802. Blade; 803. Bevel gear; 804. L-shaped fixing plate; 805. Bevel gear shaft; 806. Brush plate. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] The following describes an embodiment of the present invention based on its overall structure.

[0032] An exhaust device for a waste incineration power plant, such as Figure 1 - Figure 4 As shown, it includes a smoke exhaust pipe 1, one end of the smoke exhaust pipe 1 is fixedly connected to a dust removal pipe 2, and the top of the ash removal pipe 2 is fixedly connected to an exhaust pipe 3, the bottom of the ash removal pipe 2 is fixedly connected to a sewage collecting pipe 4, a dust reduction component 5 is provided on one side of the inside of the ash removal pipe 2, and the surface of the dust reduction component 5 is provided with an arc-shaped temperature difference power generation module plate 6, the arc-shaped temperature difference power generation module plate 6 generates electricity by electrically connecting to external equipment, a water baffle 7 is fixedly installed on the other side of the inside of the ash removal pipe 2, and the water baffle 7 is located above one end of the smoke exhaust pipe 1, and a cleaning component 8 is provided between the middle part of the water baffle 7 and the surface of the arc-shaped temperature difference power generation module plate 6. Low-temperature ash removal water is introduced through the connecting water pipe 501, and high-temperature furnace smoke is guided through the smoke exhaust pipe 1 for dust removal. The temperature difference between the two is utilized through the arc-shaped thermoelectric power generation module plate 6 arranged between the two, thereby increasing the power generation. In addition, through the setting of the cleaning component 8, the dust on the other side surface of the arc-shaped thermoelectric power generation module plate 6 is cleaned, reducing the dust adhesion on the surface of the arc-shaped thermoelectric power generation module plate 6, thereby affecting the heating of the surface of the arc-shaped thermoelectric power generation module plate 6, and further improving the power generation efficiency of the arc-shaped thermoelectric power generation module plate 6.

[0033] See also Figure 2 and Figure 4The dust reduction component 5 includes: a connecting water pipe 501, which is fixedly installed horizontally on one side of the ash removal pipe 2, one end of the connecting water pipe 501 extends to the outside of the ash removal pipe 2, and the other end of the connecting water pipe 501 is fixedly connected to a mounting pipe 502, and five water supply pipes 503 are fixedly installed at equal intervals on the top of the mounting pipe 502, and a nozzle 504 is fixedly connected to the top of the water supply pipe 503, and one side of the arc-shaped temperature difference power generation module plate 6 is fixedly installed between the surfaces of one side of the five water supply pipes 503. When the dust-containing flue gas is discharged from the inside of the smoke exhaust pipe 1, a cold water source is connected to one end of the water pipe 501. When the cold water passes through the installation pipe 502 and the water supply pipe 503 and is sprayed out from the nozzle 504, the sprayed water mist is sprayed in a certain arc to the other side of the inside of the ash removal pipe 2. The dust-containing flue gas in the ash removal pipe 2 combines with the water mist, so that it falls into the inside of the sewage collecting pipe 4 by gravity, and the gas is discharged through the exhaust pipe 3. The principle of water mist dust removal avoids the disadvantage of high maintenance frequency of traditional bag dust removal, making maintenance more convenient, and water mist dust removal will not affect the ventilation volume of the flue.

[0034] See also Figure 4 The top wall of the smoke exhaust duct 1 is designed to be tapered, with a smaller top and a larger bottom. The nozzle 504 is fixedly mounted at an angle on the top of the water supply pipe 503. The angle of the nozzle 504 is opposite to the angle of the tapered surface of the top wall of the smoke exhaust duct 1. Because the nozzle 504 is fixedly mounted at an angle on the top of the water supply pipe 503, when cold water enters the connecting water pipe 501 through the mounting pipe 502 and the water supply pipe 503 and is ejected from the nozzle 504, the sprayed water mist forms a certain arc and is sprayed to the other side of the interior of the ash removal duct 2. The dust-laden smoke inside the ash removal duct 2 combines with the water mist, causing it to fall into the sewage collection pipe 4 by gravity. At the same time, the sprayed cold water is prevented from directly acting on the surface of the curved thermoelectric power generation module plate 6 and affecting the heating of the other side of the curved thermoelectric power generation module plate 6.

[0035] See also Figure 2 - Figure 3 One side of the water supply pipe 503 is configured as a curved surface, which mates with the surface of one side of the curved thermoelectric power generation module plate 6. This curved surface on one side of the water supply pipe 503 increases the contact area between the water supply pipe 503 and the curved thermoelectric power generation module plate 6 when the curved thermoelectric power generation module plate 6 is installed between the sides of the five water supply pipes 503, thereby increasing the heat exchange area between the two. When the curved thermoelectric power generation module plate 6 utilizes the temperature difference between the two, it can increase power generation.

[0036] See also Figure 2 - Figure 4The cleaning component 8 includes: a rotating shaft 801, which is vertically rotatably installed in the middle of the water baffle 7, and the bottom of the rotating shaft 801 is fixedly connected with six blades 802 at equal intervals along the circumference, and the top of the rotating shaft 801 is fixedly connected with a bevel gear 803, and the surface of the upper end of the rotating shaft 801 is provided with an L-shaped fixing plate 804, and one end of the L-shaped fixing plate 804 is fixedly installed on the other side of the inside of the ash removal pipe 2, and the other end of the L-shaped fixing plate 804 is horizontally rotatably installed with a bevel gear shaft 805, and the L-shaped fixing plate 804 and the bevel gear shaft 805 are rotatably installed through bearings, and the surface of one end of the bevel gear shaft 805 is meshed with the surface of the bevel gear 803, and the other end of the bevel gear shaft 805 is fixedly connected with a brush plate 806, and one side of the brush plate 806 is placed on the surface of the other side of the arc-shaped temperature difference power generation module plate 6. When the ash-containing flue gas is discharged from the smoke exhaust duct 1, due to the large exhaust air volume of the smoke exhaust duct 1, the exhausted air volume acts on the surface of the blade 802 at the bottom of the rotating shaft 801, causing the blade 802 to drive the rotating shaft 801 to rotate. At this time, the bevel gear 803 at the top of the rotating shaft 801 engages and rotates with the bevel gear shaft 805, causing the bevel gear shaft 805 to drive the brush plate 806 at the other end to rotate, thereby cleaning the dust on the other side surface of the arc-shaped thermoelectric power generation module plate 6, reducing the dust adhering to the surface of the arc-shaped thermoelectric power generation module plate 6 and affecting its surface heating, thereby further improving the power generation efficiency of the arc-shaped thermoelectric power generation module plate 6.

[0037] See also Figure 2 - Figure 3 The position where the rotating shaft 801 passes through the water baffle 7 is equipped with a bearing, and the inner ring of the bearing is fixed to the outer wall of the rotating shaft 801, and the outer ring of the bearing is fixed to the opening of the water baffle 7. The stability of the rotation of the rotating shaft 801 is improved by the bearing arrangement.

[0038] See also Figure 2 The brush plate 806 has an arc-shaped structure, and the surface on one side of the brush plate 806 matches the surface on the other side of the arc-shaped thermoelectric power generation module plate 6. Because the surface on one side of the brush plate 806 and the surface on the other side of the arc-shaped thermoelectric power generation module plate 6 are matched arc-shaped surfaces, when the bevel gear shaft 805 drives the brush plate 806 to rotate, it cleans the dust adhering to the surface on the other side of the arc-shaped thermoelectric power generation module plate 6, preventing excessive dust from adhering to the surface of the arc-shaped thermoelectric power generation module plate 6 and affecting the heating of the surface of the arc-shaped thermoelectric power generation module plate 6, thereby further improving the power generation efficiency of the arc-shaped thermoelectric power generation module plate 6.

[0039] See also Figure 1 - Figure 2 A triangular guide block 101 is fixedly mounted on the bottom of the inner wall of the exhaust duct 1. When the nozzle 504 is performing dust suppression, a small amount of water will enter the exhaust duct 1. The guide block 101 blocks this water, preventing it from flowing back into the furnace through the exhaust duct 1.

[0040] The working principle of the utility model is as follows: when the exhaust device for a waste incineration power plant is in use, the dust-containing flue gas is discharged from the inside of the smoke exhaust pipe 1, and a cold water source is connected to one end of the water pipe 501. When the cold water passes through the installation pipe 502 and the water supply pipe 503 and is sprayed from the nozzle 504, the sprayed water mist is sprayed in a certain arc to the other side of the inside of the ash removal pipe 2. The dust-containing flue gas in the ash removal pipe 2 combines with the water mist, and falls into the inside of the sewage collecting pipe 4 by gravity. The gas is discharged through the exhaust pipe 3, and at the end of the smoke exhaust pipe 1, the dust-containing flue gas is discharged from the exhaust pipe 3. When the ash-containing flue gas is discharged internally, due to the large exhaust air volume of the exhaust pipe 1, the exhausted air volume acts on the surface of the blade 802 at the bottom of the rotating shaft 801, causing the blade 802 to drive the rotating shaft 801 to rotate. At this time, the bevel gear 803 at the top of the rotating shaft 801 engages and rotates with the bevel gear shaft 805, causing the bevel gear shaft 805 to drive the brush plate 806 at the other end to rotate, thereby cleaning the dust on the other side of the arc-shaped thermoelectric power generation module plate 6, reducing the dust adhering to the surface of the arc-shaped thermoelectric power generation module plate 6 and affecting its surface heating.

[0041] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not limitations on the present invention. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and purpose of the present invention, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An exhaust device for a waste incineration power plant, comprising a smoke exhaust pipe (1), characterized in that: One end of the smoke exhaust pipe (1) is fixedly connected to a dust removal pipe (2), and the top of the dust removal pipe (2) is fixedly connected to an exhaust pipe (3), and the bottom of the dust removal pipe (2) is fixedly connected to a sewage collecting pipe (4), and a dust reduction component (5) is provided on one side of the interior of the dust removal pipe (2), and an arc-shaped temperature difference power generation module plate (6) is provided on the surface of the dust reduction component (5), and a water baffle (7) is fixedly installed on the other side of the interior of the dust removal pipe (2), and the water baffle (7) is located above one end of the smoke exhaust pipe (1), and a cleaning component (8) is provided between the middle of the water baffle (7) and the surface of the arc-shaped temperature difference power generation module plate (6).

2. The exhaust device for a waste incineration power plant according to claim 1, characterized in that: The dust reduction component (5) comprises: a connecting water pipe (501), the connecting water pipe (501) is fixedly installed on one side of the dust removal pipe (2) in the horizontal direction, one end of the connecting water pipe (501) extends to the outside of the dust removal pipe (2), the other end of the connecting water pipe (501) is fixedly connected to a mounting pipe (502), and five water supply pipes (503) are fixedly installed at equal intervals on the top of the mounting pipe (502), and a nozzle (504) is fixedly connected to the top of the water supply pipe (503), and one side of the arc-shaped temperature difference power generation module plate (6) is fixedly installed between the surfaces of one side of the five water supply pipes (503).

3. The exhaust device for a waste incineration power plant according to claim 2, characterized in that: The top wall of the smoke exhaust pipe (1) is configured as a cone with a smaller top and a larger bottom. The nozzle (504) is fixedly installed at an angle on the top of the water supply pipe (503). The inclination angle of the nozzle (504) is opposite to the inclination angle of the conical surface of the top wall of the smoke exhaust pipe (1).

4. The exhaust device for a waste incineration power plant according to claim 2, characterized in that: One side of the water supply pipe (503) is configured as a curved surface, and the curved surface on one side of the water supply pipe (503) matches the surface on one side of the curved temperature difference power generation module plate (6).

5. The exhaust device for a waste incineration power plant according to claim 1, characterized in that: The cleaning assembly (8) comprises: a rotating shaft (801), the rotating shaft (801) is mounted on the middle part of the water retaining plate (7) in a vertical direction, the bottom of the rotating shaft (801) is fixedly connected with six blades (802) equidistantly along the circumference, the top of the rotating shaft (801) is fixedly connected with a bevel gear (803), the surface of the upper end of the rotating shaft (801) is sleeved with an L-shaped fixing plate (804), and one end of the L-shaped fixing plate (804) is fixedly mounted on the other side of the interior of the dust removal pipe (2), the other end of the L-shaped fixing plate (804) is mounted with a bevel gear shaft (805) in a horizontal direction, and the surface of one end of the bevel gear shaft (805) is meshed with the surface of the bevel gear (803), the other end of the bevel gear shaft (805) is fixedly connected with a brush plate (806), and one side of the brush plate (806) is placed on the surface of the other side of the arc-shaped temperature difference power generation module plate (6).

6. The exhaust device for a waste incineration power plant according to claim 5, characterized in that: A bearing is installed at the position where the rotating shaft (801) passes through the water baffle (7), and the inner ring of the bearing is fixed to the outer wall of the rotating shaft (801), and the outer ring of the bearing is fixed to the opening of the water baffle (7).

7. The exhaust device for a waste incineration power plant according to claim 5, characterized in that: The brush plate (806) is an arc-shaped structure, and the surface on one side of the brush plate (806) matches the surface on the other side of the arc-shaped temperature difference power generation module plate (6).

8. The exhaust device for a waste incineration power plant according to claim 1, characterized in that: A guide block (101) is fixedly mounted on the bottom surface of the inner wall of the smoke exhaust pipe (1), and the guide block (101) is in a triangular structure.

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