A steel plant flue gas waste heat power generation device

Abstract

The present invention discloses a steel plant flue gas waste heat power generation device, including a water source storage tank, the top of the water source storage tank is fixedly connected to a circulating water pump through a drain pipe, the drain port of the circulating water pump is fixedly connected to a flue type hot water heat exchanger through a water inlet pipe, the outer wall of the flue type hot water heat exchanger is fixedly connected to a waste heat utilization cavity, a flue gas device is arranged on one side of the outer wall of the flue type hot water heat exchanger, and a heat insulation and heat absorption shell is arranged on one side of the flue type hot water heat exchanger. The present invention relates to the field of environmental protection technology. The steel plant flue gas waste heat power generation device achieves the purpose of reducing costs, improving waste heat utilization rate, dust removal of flue gas, and extending the service life of the device, avoids the use of a condenser, and cools through a series of measures, thereby reducing the cost of the device, facilitating promotion and use, reducing the number of times the flue type hot water heat exchanger is cleaned, and extending the service life of the flue type hot water heat exchanger.

Description

Technical Field

[0001] The invention relates to the technical field of environmental protection, and in particular to a steel plant flue gas waste heat power generation device. Background Art

[0002] With the formal implementation of the new "Environmental Protection Law", many high-energy-consuming enterprises such as steel companies, coking companies, and cement companies must increase investment in energy conservation and environmental protection in order to meet the requirements of the new environmental protection law, vigorously implement clean production, increase comprehensive resource utilization, update environmentally friendly and energy-saving production process equipment, establish a conservation-oriented society, and take a new path of industrialization. Steel mills can reuse the waste heat in the flue gas, which can not only reduce heat emissions, but also provide electricity, which is in line with the concept of energy conservation and environmental protection. However, the existing waste heat power generation device needs to be equipped with cooling facilities such as cold showers after utilizing the waste heat, which increases the cost of the device and also causes the problem of low waste heat utilization. In addition, there is smoke dust in the flue gas of the steel plant. If the flue gas is directly utilized, the smoke dust adheres to the inner wall of the heat exchanger. Due to the complex structure of the heat exchanger, the device is not easy to clean, which reduces the service life of the device. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the present invention provides a steel mill flue gas waste heat power generation device, which reduces costs, improves waste heat utilization, can remove dust from flue gas, and prolongs the service life of the device.

[0005] (II) Technical solution

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a steel plant flue gas waste heat power generation device, including a water source storage tank, the top of the water source storage tank is fixedly connected to a circulating water pump through a drain pipe, the drain outlet of the circulating water pump is fixedly connected to a flue-type hot water heat exchanger through a water inlet pipe, the outer wall of the flue-type hot water heat exchanger is fixedly connected to a waste heat utilization cavity, a flue gas device is arranged on one side of the outer wall of the flue-type hot water heat exchanger, a heat-insulating heat-absorbing shell is arranged on one side of the flue-type hot water heat exchanger, a steam output main pipe is fixedly connected to the side of the outer wall of the flue-type hot water heat exchanger away from the flue gas device, one end of the steam output main pipe away from the flue-type hot water heat exchanger penetrates the heat-insulating heat-absorbing shell and extends to the interior of the heat-insulating heat-absorbing shell, one end of the steam output main pipe located inside the heat-insulating heat-absorbing shell is fixedly connected to a steam output branch pipe, and one end of the steam output branch pipe away from the steam output main pipe penetrates the heat-insulating heat-absorbing shell and extends to The heat dissipation device is an assembly made of heat-insulating materials, and the heat dissipation device is an assembly made of heat-insulating materials, and the heat dissipation device is an assembly made of heat-insulating materials, and the heat dissipation device is an assembly made of heat-insulating materials, and the heat dissipation device is an assembly made of heat-insulating materials.

[0007] Preferably, the waste heat utilization chamber includes a utilization shell, and insulation plates are fixedly connected to both sides of the inner wall of the utilization shell, one side of the outer wall of the insulation plate forms an insulation chamber with the flue type hot water heat exchanger, and the other side of the outer wall of the insulation plate forms a heat dissipation chamber with the utilization shell, the interior of the insulation chamber is filled with insulation medium, and a condensation plate is arranged inside the heat dissipation chamber.

[0008] Preferably, one side of the outer wall of the outer shell is fixedly connected to the outer surface of the flue type hot water heat exchanger, the condensation plate is vertically arranged inside the heat dissipation cavity, one side of the condensation plate is fixedly connected to the inner wall of the outer shell, and the other side of the condensation plate is fixedly connected to the insulation board.

[0009] Preferably, the flue gas device includes a flue gas casing, a filter casing is fixedly connected to the top of the inner wall of the flue gas casing, a smoke inlet pipe is fixedly connected to one side of the filter casing, an end of the smoke inlet pipe away from the filter casing passes through the flue gas casing and extends to the outside of the flue gas casing, filter mesh cavities are vertically arranged on the top and bottom of the inner wall of the filter casing, an activated carbon adsorption layer is connected to the inside of the filter mesh cavity, a ceramic honeycomb filter structure is fixedly connected to the side of the outer wall of the activated carbon adsorption layer close to the smoke inlet pipe, a first guide plate is fixedly connected to the bottom of the inner wall of the filter casing, and a second guide plate is fixedly connected to the top of the inner wall of the filter casing.

[0010] Preferably, one side of the outer wall of the flue gas housing is fixedly connected to the flue type hot water heat exchanger, and the side of the outer wall of the filter housing away from the smoke inlet pipe is fixedly connected to the flue type hot water heat exchanger through a connecting pipe.

[0011] Preferably, the first guide plate and the second guide plate are arranged obliquely inside the filter housing.

[0012] Preferably, the outer surfaces of the activated carbon adsorption layer and the ceramic honeycomb filter structure are both movably connected to the filter mesh cavity.

[0013] Preferably, the heat sink is evenly arranged inside the liquid drainage and cooling pipe, and the heat sink and the liquid drainage and cooling pipe are both made of copper.

[0014] Preferably, support legs are fixedly connected to both sides of the bottom of the waste heat utilization cavity.

[0015] Preferably, a side of the outer wall of the flue-type hot water heat exchanger away from the flue gas device is fixedly connected to a smoke exhaust pipe.

[0016] (III) Beneficial effects

[0017] The present invention provides a steel plant flue gas waste heat power generation device, which has the following beneficial effects:

[0018] (1) The flue gas waste heat power generation device of the steel plant is connected to a circulating water pump through a drainage pipe on the top of the water source storage tank. The drainage port of the circulating water pump is connected to a flue-type hot water heat exchanger through a water inlet pipe. The outer wall of the flue-type hot water heat exchanger is connected to a waste heat utilization cavity. A heat-insulating heat-absorbing shell is provided on one side of the flue-type hot water heat exchanger. A steam output main pipe is connected to the outer wall of the flue-type hot water heat exchanger away from the flue gas device. The end of the steam output main pipe away from the flue-type hot water heat exchanger passes through the heat-insulating heat-absorbing shell and extends to the inside of the heat-insulating heat-absorbing shell. The end of the steam output main pipe located inside the heat-insulating heat-absorbing shell is fixedly connected with a steam output branch pipe, the end of the steam output branch pipe away from the steam output main pipe penetrates the heat-insulating heat-absorbing shell and extends to the outside of the heat-insulating heat-absorbing shell, the end of the steam output branch pipe located outside the heat-insulating heat-absorbing shell is fixedly connected with a generator, the generator drain port is fixedly connected with a drain pipe, the end of the drain pipe away from the generator is fixedly connected with the waste heat utilization cavity, a serpentine pipe structure is arranged in the middle of the drain pipe, the top and bottom of the inner wall of the heat-insulating heat-absorbing shell are fixedly connected with heat dissipation plates, the steam output main pipe and the steam The outer wall of the output branch pipe located inside the heat-insulating heat-absorbing shell is fixedly connected to a heat-insulating medium layer, the outer wall of the serpentine tube structure is fixedly connected to a heat-absorbing plate, the outer wall of the heat-absorbing plate is fixedly connected to the outer wall of the heat-insulating heat-absorbing shell on one side away from the serpentine tube structure, a liquid drainage cooling pipe is fixedly connected to one side of the bottom of the waste heat utilization cavity, one end of the liquid drainage cooling pipe away from the waste heat utilization cavity is fixedly connected to a water source storage tank, a heat sink is arranged inside the liquid drainage cooling pipe, one end of the heat sink passes through the liquid drainage cooling pipe and extends to the outside of the liquid drainage cooling pipe, thereby achieving the purpose of reducing costs and improving waste heat utilization rate. After the motor uses steam to generate electricity, the steam will be discharged from the discharge pipe and pass into the waste heat utilization chamber. The steam is cooled through the serpentine tube structure, the heat absorbing plate and the waste heat utilization chamber. At the same time, the heat volatilized by the steam will insulate the steam output main pipe and the steam output branch pipe, reduce steam loss, and improve the waste heat utilization rate. At the same time, the steam is finally condensed into liquid under the action of the discharge cooling pipe and the heat sink. The diameter of the discharge cooling pipe should be large enough to avoid the use of a condenser. Cooling is carried out through a series of measures to reduce the cost of the device and facilitate promotion and use.

[0019] (2) The flue gas waste heat power generation device of the steel plant is provided with a flue gas device on one side of the outer wall of the flue-type hot water heat exchanger. The flue gas device includes a flue gas housing, a filter housing is fixedly connected to the top of the inner wall of the flue gas housing, a smoke inlet pipe is fixedly connected to one side of the filter housing, and the end of the smoke inlet pipe away from the filter housing penetrates the flue gas housing and extends to the outside of the flue gas housing. A filter mesh cavity is vertically provided on the top and bottom of the inner wall of the filter housing, an activated carbon adsorption layer is connected to the inside of the filter mesh cavity, a ceramic honeycomb filter structure is fixedly connected to the side of the outer wall of the activated carbon adsorption layer close to the smoke inlet pipe, a first guide plate is fixedly connected to the bottom of the inner wall of the filter housing, a second guide plate is fixedly connected to the top of the inner wall of the filter housing, one side of the outer wall of the flue gas housing is fixedly connected to the flue-type hot water heat exchanger, and the outer wall of the filter housing The side away from the smoke inlet pipe is fixedly connected to the flue type hot water heat exchanger through a connecting pipe, and the first guide plate and the second guide plate are obliquely arranged inside the filter shell, so as to achieve the purpose of removing dust from the flue gas and extending the service life of the device. The smoke with high heat is introduced through the smoke inlet pipe, and the smoke is intercepted and settled by the first guide plate and the second guide plate to reduce the dust particles with relatively large mass, and then the smoke is further adsorbed and dusted by the filter mesh cavity, the ceramic honeycomb filter structure, and the activated carbon adsorption layer before entering the interior of the flue type hot water heat exchanger. In this way, the dust during the use of the smoke is removed, the dust is prevented from clogging the flue type hot water heat exchanger, the number of times the flue type hot water heat exchanger is cleaned is reduced, and the service life of the flue type hot water heat exchanger is extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the local structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the liquid discharge and cooling pipe of the present invention;

[0023] Figure 4 It is a schematic diagram of the local structure of the present invention.

[0024] In the figure: 1 water source storage tank, 2 circulating water pump, 3 flue type hot water heat exchanger, 4 waste heat utilization cavity, 401 utilization shell, 402 insulation board, 403 insulation cavity, 404 insulation medium, 405 heat dissipation cavity, 406 condensation plate, 5 flue gas device, 501 flue gas shell, 502 smoke inlet pipe, 503 filter shell, 504 filter mesh cavity, 505 activated carbon adsorption layer, 506 ceramic honeycomb filter structure, 507 first guide plate, 508 second guide plate, 6 heat insulation and heat absorption shell, 7 steam output main pipe, 8 steam output branch pipe, 9 generator, 10 drain pipe, 11 serpentine pipe structure, 12 heat dissipation plate, 13 insulation medium layer, 14 heat absorption plate, 15 drain cooling pipe, 16 heat sink, 17 smoke exhaust pipe. DETAILED DESCRIPTION

[0025] 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. Obviously, the described embodiments are only 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.

[0026] See also Figure 1-4 The present invention provides a technical solution: a steel plant flue gas waste heat power generation device, comprising a water source storage tank 1, the top of the water source storage tank 1 is fixedly connected to a circulating water pump 2 through a drainage pipe, the drainage port of the circulating water pump 2 is fixedly connected to a flue type hot water heat exchanger 3 through a water inlet pipe, the outer wall of the flue type hot water heat exchanger 3 is fixedly connected to a waste heat utilization cavity 4, a flue gas device 5 is arranged on one side of the outer wall of the flue type hot water heat exchanger 3, a heat preservation and heat absorption shell 6 is arranged on one side of the flue type hot water heat exchanger 3, a steam output main pipe 7 is fixedly connected to the side of the outer wall of the flue type hot water heat exchanger 3 away from the flue gas device 5, the end of the steam output main pipe 7 away from the flue type hot water heat exchanger 3 passes through the heat preservation and heat absorption shell 6 and extends to the inside of the heat preservation and heat absorption shell 6, the end of the steam output main pipe 7 located inside the heat preservation and heat absorption shell 6 is fixedly connected to a steam output branch pipe 8, the end of the steam output branch pipe 8 away from the steam output main pipe 7 passes through the heat preservation and heat absorption shell 6 and extends to the outside of the heat preservation and heat absorption shell 6, the steam One end of the output branch pipe 8 located outside the heat-insulating heat-absorbing shell 6 is fixedly connected to a generator 9, and a drain port of the generator 9 is fixedly connected to a drain pipe 10. The end of the drain pipe 10 away from the generator 9 is fixedly connected to the waste heat utilization chamber 4, and a serpentine tube structure 11 is arranged in the middle of the drain pipe 10. The top and bottom of the inner wall of the heat-insulating heat-absorbing shell 6 are fixedly connected to heat sinks 12. The outer walls of the steam output main pipe 7 and the steam output branch pipe 8 located inside the heat-insulating heat-absorbing shell 6 are fixedly connected to a heat-insulating medium layer 13. The outer wall of the serpentine tube structure 11 is fixedly connected to a heat-absorbing plate 14. The side of the outer wall of the heat-absorbing plate 14 away from the serpentine tube structure 11 is fixedly connected to the outer wall of the heat-insulating heat-absorbing shell 6. A drainage cooling pipe 15 is fixedly connected to one side of the bottom of the waste heat utilization chamber 4. The steam is cooled by the serpentine tube structure 11, the heat-absorbing plate 14 and the waste heat utilization chamber 4. At the same time, the heat volatilized by the steam will insulate the steam output main pipe 7 and the steam output branch pipe 8, thereby reducing steam loss and improving waste heat utilization. One end of the drain cooling pipe 15 away from the waste heat utilization chamber 4 is fixedly connected to the water source storage tank 1, and a heat sink 16 is arranged inside the drain cooling pipe 15. One end of the heat sink 16 passes through the drain cooling pipe 15 and extends to the outside of the drain cooling pipe 15. The steam is finally condensed into liquid under the action of the drain cooling pipe 15 and the heat sink 16, thereby reducing the cost of the device.

[0027] The waste heat utilization chamber 4 includes a utilization shell 401, and insulation plates 402 are fixedly connected to both sides of the inner wall of the utilization shell 401. One side of the outer wall of the insulation plate 402 forms an insulation chamber 403 with the flue-type hot water heat exchanger 3, and the other side of the outer wall of the insulation plate 402 forms a heat dissipation chamber 405 with the utilization shell 401. The insulation chamber 403 is filled with an insulation medium 404, and a condensation plate 406 is arranged inside the heat dissipation chamber 405 to increase the cooling speed and to keep the flue-type hot water heat exchanger 3 warm and insulated.

[0028] One side of the outer wall of the shell 401 is fixedly connected to the outer surface of the flue type hot water heat exchanger 3, and the condensation plate 406 is vertically arranged inside the heat dissipation cavity 405. One side of the condensation plate 406 is fixedly connected to the inner wall of the shell 401, and the other side of the condensation plate 406 is fixedly connected to the insulation plate 402, thereby improving the stability of the device.

[0029] The flue gas device 5 includes a flue gas housing 501, a filter housing 503 is fixedly connected to the top of the inner wall of the flue gas housing 501, a smoke inlet pipe 502 is fixedly connected to one side of the filter housing 503, and the end of the smoke inlet pipe 502 away from the filter housing 503 passes through the flue gas housing 501 and extends to the outside of the flue gas housing 501, and filter mesh cavities 504 are vertically arranged on the top and bottom of the inner wall of the filter housing 503, an activated carbon adsorption layer 505 is connected inside the filter mesh cavity 504, and a ceramic honeycomb filter structure 506 is fixedly connected to the side of the outer wall of the activated carbon adsorption layer 505 close to the smoke inlet pipe 502, a first guide plate 507 is fixedly connected to the bottom of the inner wall of the filter housing 503, and a second guide plate 508 is fixedly connected to the top of the inner wall of the filter housing 503 for dust removal.

[0030] One side of the outer wall of the flue gas housing 501 is fixedly connected to the flue type hot water heat exchanger 3, and the side of the outer wall of the filter housing 503 away from the smoke inlet pipe 502 is fixedly connected to the flue type hot water heat exchanger 3 through a connecting pipe, thereby improving the stability of the device.

[0031] The first guide plate 507 and the second guide plate 508 are arranged obliquely inside the filter housing 503 to improve the dust removal effect.

[0032] The outer surfaces of the activated carbon adsorption layer 505 and the ceramic honeycomb filter structure 506 are movably connected to the filter cavity 504 for easy replacement.

[0033] The heat sink 16 is evenly arranged inside the drain cooling tube 15 . The heat sink 16 and the drain cooling tube 15 are both made of copper to improve heat dissipation efficiency.

[0034] Support legs are fixedly connected to both sides of the bottom of the waste heat utilization chamber 4 to improve the stability of the device.

[0035] A side of the outer wall of the flue-type hot water heat exchanger 3 away from the flue gas device 5 is fixedly connected to a smoke exhaust pipe 17 for exhausting smoke.

[0036] When in use, high-calorie flue gas is introduced through the smoke inlet pipe 502, and the flue gas is intercepted and settled by the first guide plate 507 and the second guide plate 508 to reduce the dust particles with relatively large mass. Then, the flue gas is further adsorbed and dust-removed by the filter cavity 504, the ceramic honeycomb filter structure 506, and the activated carbon adsorption layer 505, and then enters the flue type hot water heat exchanger 3 (which can be purchased and used directly). The flue type hot water heat exchanger 3 uses a circulating water pump 2 (which can be purchased and used directly) to pass a large amount of clean water from the water source storage tank 1. The clean water is in the flue type hot water heat exchanger 3, the flue gas is heated to steam, and the steam is input from the steam output main pipe 7 and the steam output branch pipe 8 to the generator 9 (which can be purchased and used directly) to generate electricity. After the generator 9 uses the steam to generate electricity, the steam will be discharged from the drain pipe 10 and pass into the interior of the waste heat utilization chamber 4. The steam is cooled by the serpentine tube structure 11, the heat absorbing plate 14 and the waste heat utilization chamber 4. At the same time, the heat volatilized by the steam will keep the steam output main pipe 7 and the steam output branch pipe 8 warm. Finally, the steam is condensed into liquid under the action of the drain cooling pipe 15 and the heat sink 16.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0038] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel plant flue gas waste heat power generation device, comprising a water source storage tank (1), characterized in that: The top of the water source storage tank (1) is fixedly connected to a circulating water pump (2) via a drainage pipe, the drainage port of the circulating water pump (2) is fixedly connected to a flue-type hot water heat exchanger (3) via a water inlet pipe, the outer wall of the flue-type hot water heat exchanger (3) is fixedly connected to a waste heat utilization chamber (4), a flue gas device (5) is provided on one side of the outer wall of the flue-type hot water heat exchanger (3), a heat-insulating heat-absorbing shell (6) is provided on one side of the flue-type hot water heat exchanger (3), a side of the outer wall of the flue-type hot water heat exchanger (3) away from the flue gas device (5) is fixedly connected to a steam output main pipe (7), and one end of the steam output main pipe (7) away from the flue-type hot water heat exchanger (3) passes through the heat-insulating heat-absorbing shell (6) and The steam output main pipe (7) is located inside the heat-insulating heat-absorbing shell (6), and one end of the steam output branch pipe (8) is fixedly connected to the heat-insulating heat-absorbing shell (6). One end of the steam output branch pipe (8) away from the steam output main pipe (7) passes through the heat-insulating heat-absorbing shell (6) and extends to the outside of the heat-insulating heat-absorbing shell (6). One end of the steam output branch pipe (8) located outside the heat-insulating heat-absorbing shell (6) is fixedly connected to the generator (9). The generator (9) has a drain port fixedly connected to a drain pipe (10). One end of the drain pipe (10) away from the generator (9) is fixedly connected to the waste heat utilization chamber (4). A serpentine pipe structure (11) is provided in the middle of the drain pipe (10). ), the top and bottom of the inner wall of the heat-insulating heat-absorbing shell (6) are fixedly connected to a heat dissipation plate (12), the outer walls of the steam output main pipe (7) and the steam output branch pipe (8) located inside the heat-insulating heat-absorbing shell (6) are fixedly connected to a heat-insulating medium layer (13), the outer wall of the serpentine tube structure (11) is fixedly connected to a heat-absorbing plate (14), the outer wall of the heat-absorbing plate (14) away from the serpentine tube structure (11) is fixedly connected to the outer wall of the heat-insulating heat-absorbing shell (6), one side of the bottom of the waste heat utilization chamber (4) is fixedly connected to a drainage cooling pipe (15), one end of the drainage cooling pipe (15) away from the waste heat utilization chamber (4) is fixedly connected to the water source storage tank (1), and the drainage cooling pipe (15) is provided with a heat sink (16) inside, one end of the heat sink (16) penetrates the drain cooling pipe (15) and extends to the outside of the drain cooling pipe (15); the waste heat utilization chamber (4) comprises a utilization shell (401), and both sides of the inner wall of the utilization shell (401) are fixedly connected with heat insulation plates (402), one side of the outer wall of the heat insulation plate (402) and the flue-type hot water heat exchanger (3) form a heat insulation chamber (403), and the other side of the outer wall of the heat insulation plate (402) and the utilization shell (401) form a heat dissipation chamber (405), the heat insulation chamber (403) is filled with a heat insulation medium (404), and a condensation plate (406) is provided inside the heat dissipation chamber (405);One side of the outer wall of the utilization shell (401) is fixedly connected to the outer surface of the flue-type hot water heat exchanger (3); the condensation plate (406) is vertically arranged inside the heat dissipation cavity (405); one side of the condensation plate (406) is fixedly connected to the inner wall of the utilization shell (401); the other side of the condensation plate (406) is fixedly connected to the heat insulation plate (402); the smoke device (5) comprises a smoke shell (501); the top of the inner wall of the smoke shell (501) is fixedly connected to a filter shell (503); one side of the filter shell (503) is fixedly connected to a smoke inlet pipe (502); the smoke inlet pipe (502) is away from the flue gas shell (501); One end of the filter housing (503) penetrates the smoke housing (501) and extends to the outside of the smoke housing (501); a filter mesh cavity (504) is vertically arranged at the top and bottom of the inner wall of the filter housing (503); an activated carbon adsorption layer (505) is connected inside the filter mesh cavity (504); a ceramic honeycomb filter structure (506) is fixedly connected to a side of the outer wall of the activated carbon adsorption layer (505) close to the smoke inlet pipe (502); a first guide plate (507) is fixedly connected to the bottom of the inner wall of the filter housing (503); and a second guide plate (508) is fixedly connected to the top of the inner wall of the filter housing (503). ; 2. The steel plant flue gas waste heat power generation device according to claim 1, characterized in that: One side of the outer wall of the flue gas housing (501) is fixedly connected to the flue type hot water heat exchanger (3), and the side of the outer wall of the filter housing (503) away from the smoke inlet pipe (502) is fixedly connected to the flue type hot water heat exchanger (3) via a connecting pipe.

3. The steel plant flue gas waste heat power generation device according to claim 1, characterized in that: The first guide plate (507) and the second guide plate (508) are arranged obliquely inside the filter housing (503).

4. The steel plant flue gas waste heat power generation device according to claim 1, characterized in that: The outer surfaces of the activated carbon adsorption layer (505) and the ceramic honeycomb filter structure (506) are both movably connected to the filter mesh cavity (504).

5. The steel mill flue gas waste heat power generation device according to claim 1, characterized in that: The heat sink (16) is evenly arranged inside the liquid discharge cooling pipe (15); the heat sink (16) and the liquid discharge cooling pipe (15) are both made of copper.

6. The steel mill flue gas waste heat power generation device according to claim 1, characterized in that: Support legs are fixedly connected to both sides of the bottom of the waste heat utilization chamber (4).

7. The steel mill flue gas waste heat power generation device according to claim 1, characterized in that: A side of the outer wall of the flue-type hot water heat exchanger (3) away from the flue gas device (5) is fixedly connected to a smoke exhaust pipe (17).

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