CN208845242U - A kind of steel mill's flue gas waste heat power generation device - Google Patents

Abstract

The utility model discloses a kind of steel mill's flue gas waste heat power generation devices, including water source storage tank, water circulating pump is communicated with by drainpipe fixation at the top of the water source storage tank, the water circulating pump discharge outlet is communicated with chimney flue type hot water heat exchanger by water inlet pipe fixation, the chimney flue type hot water heat exchanger outer wall is fixedly connected with UTILIZATION OF VESIDUAL HEAT IN chamber, the chimney flue type hot water heat exchanger outer wall side is provided with flue gas device, chimney flue type hot water heat exchanger side is provided with heat insulation and heat absorption shell, and the utility model relates to environmental technology fields.Steel mill's flue gas waste heat power generation device, achieve the purpose that reduce cost, has improved utilization rate of waste heat, flue gas can be dusted, extend service using life, it avoids using condenser, it is cooled down by a series of measure, reduce the cost of device, convenient for promoting and using, the number of chimney flue type hot water heat exchanger cleaning is reduced, the service life of chimney flue type hot water heat exchanger is extended.

Description

A kind of steel mill's flue gas waste heat power generation device

Technical field

The utility model relates to environmental technology field, specially a kind of steel mill's flue gas waste heat power generation device.

Background technique

As new " Law on Environmental Protection " is formally implemented, for many iron and steel enterprises, coal chemical enterprise, cement production enterprise etc., these are high For energy consumption enterprise, for the requirement for reaching new environmental law, energy conservation and environmental protection investment must be increased, clean manufacturing is vigorously implemented, increases money Source comprehensive utilization, the production process equipment of update environmental protection and energy saving establish conservation-minded society, walk a new industrialization road Road, steel mill can reuse the waste heat in flue gas, can not only reduce the discharge of heat, moreover it is possible to provide electric energy, meet section The theory of energy environmental protection, but existing device for generating power by waste heat needs to be arranged after using waste heat the cooling facility such as cold leaching device, increases The cost of device, and the low problem of utilization rate of waste heat is also resulted in, and there are flue dust in the flue gas of steel mill, directly utilize cigarette Gas, flue dust are attached on the inner wall of heat exchanger, since heat exchanger structure is more complicated, so that device is not easy to clean, are reduced The service life of device.

Utility model content

(1) the technical issues of solving

In view of the deficiencies of the prior art, the utility model provides a kind of steel mill's flue gas waste heat power generation device, provides one Kind reduces cost, the steel mill's fume afterheat for improving utilization rate of waste heat, being dusted to flue gas, extending service using life power generation Device.

(2) technical solution

In order to achieve the above object, the utility model is achieved by the following technical programs: a kind of steel mill's fume afterheat hair Electric installation, including water source storage tank, the water source storage tank top are communicated with water circulating pump, the circulation by drainpipe fixation Pumping drainage mouth is communicated with chimney flue type hot water heat exchanger by the way that water inlet pipe is fixed, and the chimney flue type hot water heat exchanger outer wall is fixed to be connected It is connected to UTILIZATION OF VESIDUAL HEAT IN chamber, the chimney flue type hot water heat exchanger outer wall side is provided with flue gas device, the chimney flue type hot water heat exchange Device side is provided with heat insulation and heat absorption shell, and the chimney flue type hot water heat exchanger outer wall is communicated with far from the side fixation of flue gas device Steam delivery trunk, the steam delivery trunk run through heat insulation and heat absorption shell and extension far from one end of chimney flue type hot water heat exchanger To the inside of heat insulation and heat absorption shell, one end fixation that the steam delivery trunk is located at heat insulation and heat absorption interior of shell is communicated with steam Branch pipe is exported, the one end of the steam output branch pipe far from steam delivery trunk is through heat insulation and heat absorption shell and extends to heat preservation suction The outside of hot shell, one end that the steam output branch pipe is located at heat insulation and heat absorption shell exterior is fixedly connected with generator, described Generator leakage fluid dram is fixed to be communicated with drain pipe, and the one end of the drain pipe far from generator is connected to the fixation of UTILIZATION OF VESIDUAL HEAT IN chamber, It is provided with coiled pipe structure in the middle part of the drain pipe, is fixedly connected to heat dissipation at the top and bottom of the heat insulation and heat absorption outer casing inner wall The part that plate, the steam delivery trunk and steam output branch pipe outer wall are located at heat insulation and heat absorption interior of shell is fixedly connected with heat preservation Dielectric layer, the coiled pipe structure outer wall are fixedly connected with absorber plate, the side of the absorber plate outer wall far from coiled pipe structure It is fixedly connected with heat insulation and heat absorption outer shell outer wall, the UTILIZATION OF VESIDUAL HEAT IN chamber bottom side fixation is communicated with drain cooling pipe, the row The one end of liquid cooling pipe far from UTILIZATION OF VESIDUAL HEAT IN chamber is connected to the fixation of water source storage tank, and the drain cooling pipe is internally provided with heat dissipation Piece, described cooling fin one end is through drain cooling pipe and extends to outside drain cooling pipe.

Preferably, the UTILIZATION OF VESIDUAL HEAT IN chamber is fixedly connected with heat-insulated including the use of shell, the utilization outer casing inner wall two sides Plate, thermal insulation board outer wall side and chimney flue type hot water heat exchanger are formed with heat-insulation chamber, the thermal insulation board outer wall other side and benefit It is formed with heat-insulation chamber with shell, is filled with insulation medium inside the heat-insulation chamber, the heat dissipation cavity is internally provided with cold plate.

Preferably, described to be fixedly connected using outer shell outer wall side with chimney flue type hot water heat exchanger outer surface, the condensation Plate is vertically arranged in the inside of heat dissipation cavity, and the cold plate side is fixedly connected with using outer casing inner wall, and the cold plate is another Side is fixedly connected with thermal insulation board.

Preferably, the flue gas device includes flue gas shell, and it is outer that filtering is fixedly connected at the top of the flue gas outer casing inner wall Shell, the filter shell side is fixed to be communicated with smoke-intake pipe, and the smoke-intake pipe runs through flue gas shell far from one end of filter shell And the outside of flue gas shell is extended to, filter screen chamber, the filtering are vertically arranged at the top and bottom of the filter shell inner wall Net chamber is internally connected with activated carbon adsorption layer, and the activated carbon adsorption layer outer wall is fixedly connected with ceramics close to the side of smoke-intake pipe Cellular filter structure, filter shell inner wall bottom are fixedly connected with the first deflector, and the filter shell inner wall top is solid Surely it is connected with the second deflector.

Preferably, flue gas outer shell outer wall side is fixedly connected with chimney flue type hot water heat exchanger, outside the filter shell Side of the wall far from smoke-intake pipe is connected to by connecting pipe with the fixation of chimney flue type hot water heat exchanger.

Preferably, first deflector and the second deflector are inclined inside filter shell.

Preferably, the outer surface of the activated carbon adsorption layer and ceramic honeycomb filtration structure connects with filter screen chamber activity It connects.

Preferably, the cooling fin is uniformly arranged on the inside of drain cooling pipe, the cooling fin and drain cooling pipe Material is copper.

Preferably, UTILIZATION OF VESIDUAL HEAT IN chamber two sides of the bottom are fixedly connected with support leg.

Preferably, the chimney flue type hot water heat exchanger outer wall is communicated with smoke exhaust pipe far from the side fixation of flue gas device.

(3) beneficial effect

The utility model provides a kind of steel mill's flue gas waste heat power generation device.Have it is following the utility model has the advantages that

(1), steel mill's flue gas waste heat power generation device, by being communicated with circulation by drainpipe fixation at the top of water source storage tank Water pump, water circulating pump discharge outlet are communicated with chimney flue type hot water heat exchanger, chimney flue type hot water heat exchanger outer wall by water inlet pipe fixation It is fixedly connected with UTILIZATION OF VESIDUAL HEAT IN chamber, chimney flue type hot water heat exchanger side is provided with heat insulation and heat absorption shell, chimney flue type hot water heat exchanger Outer wall is communicated with steam delivery trunk far from the side fixation of flue gas device, and steam delivery trunk is far from chimney flue type hot water heat exchanger One end through heat insulation and heat absorption shell and extend to the inside of heat insulation and heat absorption shell, steam delivery trunk is located at heat insulation and heat absorption shell Internal one end is fixed to be communicated with steam output branch pipe, and steam exports the one end of branch pipe far from steam delivery trunk and inhales through heat preservation Hot shell and the outside for extending to heat insulation and heat absorption shell, steam output branch pipe are located at the fixed company in one end of heat insulation and heat absorption shell exterior It is connected to generator, generator leakage fluid dram is fixed to be communicated with drain pipe, and the one end of drain pipe far from generator and UTILIZATION OF VESIDUAL HEAT IN chamber are solid Fixed connection, drain pipe middle part are provided with coiled pipe structure, are fixedly connected to heat dissipation at the top and bottom of heat insulation and heat absorption outer casing inner wall The part that plate, steam delivery trunk and steam output branch pipe outer wall are located at heat insulation and heat absorption interior of shell is fixedly connected with thermal insulation medium Layer, coiled pipe structure outer wall are fixedly connected with absorber plate, outside side and heat insulation and heat absorption of the absorber plate outer wall far from coiled pipe structure Shell outer wall is fixedly connected, and the fixation of UTILIZATION OF VESIDUAL HEAT IN chamber bottom side is communicated with drain cooling pipe, and drain cooling pipe is far from UTILIZATION OF VESIDUAL HEAT IN One end of chamber is connected to the fixation of water source storage tank, and drain cooling pipe is internally provided with cooling fin, and cooling fin one end is dropped through drain Temperature is managed and is extended to outside drain cooling pipe, has been achieved the purpose that reduce cost, has been improved utilization rate of waste heat, has utilized in generator After steam-electric power, steam can be discharged from drain pipe, and be passed through the inside of UTILIZATION OF VESIDUAL HEAT IN chamber, and steam passes through coiled pipe structure, heat absorption Plate and UTILIZATION OF VESIDUAL HEAT IN chamber are cooled down, while the heat of steam volatilization can protect steam delivery trunk and steam output branch pipe Temperature reduces steam loss, improves utilization rate of waste heat, while steam is finally condensed under the action of drain cooling pipe and cooling fin Liquid, wherein drain cooling pipe diameter wants enough big, avoids being cooled down using condenser by a series of measure, drop The low cost of device, convenient for promoting and using.

(2), steel mill's flue gas waste heat power generation device is provided with flue gas dress by chimney flue type hot water heat exchanger outer wall side It sets, flue gas device includes flue gas shell, and filter shell is fixedly connected at the top of flue gas outer casing inner wall, and filter shell side is fixed to be connected It is connected with smoke-intake pipe, smoke-intake pipe runs through flue gas shell far from one end of filter shell and extends to the outside of flue gas shell, and filtering is outer It is vertically arranged with filter screen chamber at the top and bottom of shell inner wall, filter screen chamber is internally connected with activated carbon adsorption layer, activated carbon adsorption Layer outer wall is fixedly connected with ceramic honeycomb filtration structure close to the side of smoke-intake pipe, and filter shell inner wall bottom is fixedly connected with the One deflector, filter shell inner wall top are fixedly connected with the second deflector, and flue gas outer shell outer wall side is changed with chimney flue type hot water Hot device is fixedly connected, and side of the filter shell outer wall far from smoke-intake pipe connects by the way that connecting pipe and chimney flue type hot water heat exchanger are fixed Logical, the first deflector and the second deflector are inclined inside filter shell, and flue gas can be dusted, extend dress by having reached The purpose for setting service life leads to the flue gas that forward (FWD) has high heat by smoke-intake pipe, and flue gas is in the first deflector and the second deflector Interception sinking fall the biggish dust granule of mass ratio, carry out preliminary dedusting, then flue gas is by filter screen chamber, ceramic honeycomb Filter structure and activated carbon adsorption layer further progress absorption dedusting after enter chimney flue type hot water heat exchanger inside, such one Come, eliminate dust when flue gas utilization, dust is avoided to block chimney flue type hot water heat exchanger, it is clear to reduce chimney flue type hot water heat exchanger The number washed extends the service life of chimney flue type hot water heat exchanger.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the utility model partial structural diagram；

Fig. 3 is the utility model drain cooling pipe structural schematic diagram；

Fig. 4 is the utility model partial structural diagram.

In figure: 1 water source storage tank, 2 water circulating pumps, 3 chimney flue type hot water heat exchangers, 4 UTILIZATION OF VESIDUAL HEAT IN chambers, 401 using shells, 402 thermal insulation boards, 403 heat-insulation chambers, 404 insulation mediums, 405 heat dissipation cavities, 406 cold plates, 5 flue gas devices, 501 flue gas shells, 502 Smoke-intake pipe, 503 filter shells, 504 filter screen chambers, 505 activated carbon adsorption layers, 506 ceramic honeycomb filtration structures, 507 first are led Flowing plate, 508 second deflectors, 6 heat insulation and heat absorption shells, 7 steam delivery trunks, 8 steam export branch pipe, 9 generators, 10 drains Pipe, 11 coiled pipe structures, 12 heat sinks, 13 thermal insulation medium layers, 14 absorber plates, 15 drain cooling pipes, 16 cooling fins, 17 smoke evacuations Pipe.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-4 is please referred to, the utility model provides a kind of technical solution: a kind of steel mill's flue gas waste heat power generation device, including Water source storage tank 1 is communicated with water circulating pump 2 by drainpipe fixation at the top of water source storage tank 1, and 2 discharge outlet of water circulating pump passes through Water inlet pipe fixation is communicated with chimney flue type hot water heat exchanger 3, and 3 outer wall of chimney flue type hot water heat exchanger is fixedly connected with UTILIZATION OF VESIDUAL HEAT IN chamber 4, 3 outer wall side of chimney flue type hot water heat exchanger is provided with flue gas device 5, and 3 side of chimney flue type hot water heat exchanger is provided with heat insulation and heat absorption Shell 6,3 outer wall of chimney flue type hot water heat exchanger are communicated with steam delivery trunk 7 far from the side fixation of flue gas device 5, and steam is defeated The one end of general pipeline 7 far from chimney flue type hot water heat exchanger 3 through heat insulation and heat absorption shell 6 and extends in heat insulation and heat absorption shell 6 out Portion, steam delivery trunk 7 are located at the fixed steam that is communicated in one end inside heat insulation and heat absorption shell 6 and export branch pipe 8, steam output branch Pipe 8 runs through heat insulation and heat absorption shell 6 far from one end of steam delivery trunk 7 and extends to the outside of heat insulation and heat absorption shell 6, and steam is defeated One end that branch pipe 8 is located at outside heat insulation and heat absorption shell 6 out is fixedly connected with generator 9, the fixed row of being communicated with of 9 leakage fluid dram of generator Liquid pipe 10, the one end of drain pipe 10 far from generator 9 are connected to the fixation of UTILIZATION OF VESIDUAL HEAT IN chamber 4, are provided in the middle part of drain pipe 10 snakelike Pipe structure 11,6 inner wall of heat insulation and heat absorption shell top and bottom are fixedly connected to heat sink 12, steam delivery trunk 7 and steam Output 8 outer wall of branch pipe is located at the part inside heat insulation and heat absorption shell 6 and is fixedly connected with thermal insulation medium layer 13, outside coiled pipe structure 11 Wall is fixedly connected with absorber plate 14, and side of 14 outer wall of absorber plate far from coiled pipe structure 11 and 6 outer wall of heat insulation and heat absorption shell are solid Fixed connection, 4 bottom side of UTILIZATION OF VESIDUAL HEAT IN chamber is fixed to be communicated with drain cooling pipe 15, and steam passes through coiled pipe structure 11, absorber plate 14 and UTILIZATION OF VESIDUAL HEAT IN chamber 4 cooled down, while the heat of steam volatilization steam delivery trunk 7 and steam can be exported branch pipe 8 into Row heat preservation, reduces steam loss, improves utilization rate of waste heat.It is deposited with water source the one end of drain cooling pipe 15 far from UTILIZATION OF VESIDUAL HEAT IN chamber 4 The fixed connection of storage tank 1, drain cooling pipe 15 are internally provided with cooling fin 16, and 16 one end of cooling fin is through drain cooling pipe 15 and prolongs It extends to outside drain cooling pipe 15, steam is finally condensed into liquid under the action of drain cooling pipe 15 and cooling fin 16, reduces The cost of device.

UTILIZATION OF VESIDUAL HEAT IN chamber 4 is fixedly connected with thermal insulation board 402 including the use of shell 401, using 401 inner wall two sides of shell, every 402 outer wall side of hot plate and chimney flue type hot water heat exchanger 3 are formed with heat-insulation chamber 403, and the 402 outer wall other side of thermal insulation board and utilization are outer Shell 401 is formed with heat-insulation chamber 403, is filled with insulation medium 404 inside heat-insulation chamber 403, heat dissipation cavity 405 is internally provided with cold plate 406, cooling speed is improved, and insulation is carried out to chimney flue type hot water heat exchanger 3.

It is fixedly connected using 401 outer wall side of shell with 3 outer surface of chimney flue type hot water heat exchanger, cold plate 406 is set vertically Set in the inside of heat dissipation cavity 405,406 side of cold plate is fixedly connected with using 401 inner wall of shell, 406 other side of cold plate with Thermal insulation board 402 is fixedly connected, and improves the stability of device.

Flue gas device 5 includes flue gas shell 501, is fixedly connected with filter shell 503, mistake at the top of 501 inner wall of flue gas shell 503 side of filter outer housing is fixed to be communicated with smoke-intake pipe 502, and smoke-intake pipe 502 runs through flue gas shell far from one end of filter shell 503 501 and the outside of flue gas shell 501 is extended to, is vertically arranged with filter screen chamber 504 at the top and bottom of 503 inner wall of filter shell, Filter screen chamber 504 is internally connected with activated carbon adsorption layer 505, and 505 outer wall of activated carbon adsorption layer is solid close to the side of smoke-intake pipe 502 Surely it is connected with ceramic honeycomb filtration structure 506,503 inner wall bottom of filter shell is fixedly connected with the first deflector 507, and filtering is outer It is fixedly connected with the second deflector 508 at the top of 503 inner wall of shell, is dusted.

501 outer wall side of flue gas shell is fixedly connected with chimney flue type hot water heat exchanger 3,503 outer wall of filter shell far from into The side of smoke pipe 502 is connected to by connecting pipe with the fixation of chimney flue type hot water heat exchanger 3, and the stability of device is improved.

First deflector 507 and the second deflector 508 are inclined inside filter shell 503, improve dust removing effects.

The outer surface of activated carbon adsorption layer 505 and ceramic honeycomb filtration structure 506 is flexibly connected with filter screen chamber 504, It is conveniently replaceable.

Cooling fin 16 is uniformly arranged on the inside of drain cooling pipe 15, and the material of cooling fin 16 and drain cooling pipe 15 is Copper improves radiating efficiency.

4 two sides of the bottom of UTILIZATION OF VESIDUAL HEAT IN chamber are fixedly connected with support leg, improve the stability of device.

3 outer wall of chimney flue type hot water heat exchanger is communicated with smoke exhaust pipe 17 far from the side fixation of flue gas device 5, discharges fume.

In use, leading to the flue gas that forward (FWD) has high heat by smoke-intake pipe 502, flue gas is led in the first deflector 507 and second The biggish dust granule of mass ratio is fallen in the interception sinking of flowing plate 508, and then flue gas is by filter screen chamber 504, ceramic honeycomb filtration Entering chimney flue type hot water heat exchanger 3(after structure 506 and the absorption dedusting of 505 further progress of activated carbon adsorption layer can directly buy Using) inside, chimney flue type hot water heat exchanger 3 can directly buy use using water circulating pump 2() lead to from water source storage tank 1 into A large amount of clear water, clear water is under the action of chimney flue type hot water heat exchanger 3, and by flue gas at steam, steam is from steam delivery trunk 7 Use can be directly bought with input generator 9(in steam output branch pipe 8) it generates electricity, steam-electric power has been utilized in generator 9 Afterwards, steam can be discharged from drain pipe 10, and be passed through the inside of UTILIZATION OF VESIDUAL HEAT IN chamber 4, and steam passes through coiled pipe structure 11, absorber plate 14 It is cooled down with UTILIZATION OF VESIDUAL HEAT IN chamber 4, while the heat of steam volatilization can carry out steam delivery trunk 7 and steam output branch pipe 8 Heat preservation, steam are finally condensed into liquid under the action of drain cooling pipe 15 and cooling fin 16.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.In the absence of more restrictions.By sentence " element limited including one ..., it is not excluded that There is also other identical elements in the process, method, article or apparatus that includes the element ".

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (10)

1. a kind of steel mill's flue gas waste heat power generation device, including water source storage tank (1), it is characterised in that: the water source storage tank (1) Top is communicated with water circulating pump (2) by drainpipe fixation, and water circulating pump (2) discharge outlet is communicated with by water inlet pipe fixation Chimney flue type hot water heat exchanger (3), chimney flue type hot water heat exchanger (3) outer wall are fixedly connected with UTILIZATION OF VESIDUAL HEAT IN chamber (4), the cigarette Road formula hot water heat exchanger (3) outer wall side is provided with flue gas device (5), and chimney flue type hot water heat exchanger (3) side is provided with Heat insulation and heat absorption shell (6), chimney flue type hot water heat exchanger (3) outer wall are communicated with steaming far from the side fixation of flue gas device (5) Vapour delivery trunk (7), the one end of the steam delivery trunk (7) far from chimney flue type hot water heat exchanger (3) is outside heat insulation and heat absorption Shell (6) and the inside for extending to heat insulation and heat absorption shell (6), it is internal that the steam delivery trunk (7) is located at heat insulation and heat absorption shell (6) One end fixed be communicated with steam output branch pipe (8), the described one end of steam output branch pipe (8) far from steam delivery trunk (7) Through heat insulation and heat absorption shell (6) and the outsides of heat insulation and heat absorption shell (6) is extended to, steam output branch pipe (8) is located at heat preservation The external one end of heat absorption shell (6) is fixedly connected with generator (9), and generator (9) the leakage fluid dram fixation is communicated with drain pipe (10), the one end of the drain pipe (10) far from generator (9) is connected to UTILIZATION OF VESIDUAL HEAT IN chamber (4) fixation, the drain pipe (10) Middle part is provided with coiled pipe structure (11), is fixedly connected to heat sink at the top and bottom of heat insulation and heat absorption shell (6) inner wall (12), it is solid to be located at the internal part of heat insulation and heat absorption shell (6) for the steam delivery trunk (7) and steam output branch pipe (8) outer wall Surely it is connected with thermal insulation medium layer (13), coiled pipe structure (11) outer wall is fixedly connected with absorber plate (14), the absorber plate (14) side of the outer wall far from coiled pipe structure (11) is fixedly connected with heat insulation and heat absorption shell (6) outer wall, the UTILIZATION OF VESIDUAL HEAT IN chamber (4) bottom side fixation is communicated with drain cooling pipe (15), the one end of the drain cooling pipe (15) far from UTILIZATION OF VESIDUAL HEAT IN chamber (4) It is connected to water source storage tank (1) fixation, the drain cooling pipe (15) is internally provided with cooling fin (16), the cooling fin (16) One end is through drain cooling pipe (15) and extends to drain cooling pipe (15) outside.

2. a kind of steel mill's flue gas waste heat power generation device according to claim 1, it is characterised in that: the UTILIZATION OF VESIDUAL HEAT IN chamber (4) described to be fixedly connected with thermal insulation board (402) using shell (401) inner wall two sides including the use of shell (401), it is described heat-insulated Plate (402) outer wall side and chimney flue type hot water heat exchanger (3) are formed with heat-insulation chamber (403), and thermal insulation board (402) outer wall is another Side is formed with heat dissipation cavity (405) with using shell (401), is filled with insulation medium (404) inside the heat-insulation chamber (403), institute It states heat dissipation cavity (405) and is internally provided with cold plate (406).

3. a kind of steel mill's flue gas waste heat power generation device according to claim 2, it is characterised in that: described to utilize shell (401) outer wall side is fixedly connected with chimney flue type hot water heat exchanger (3) outer surface, and the cold plate (406) is vertically arranged in scattered The inside of hot chamber (405), cold plate (406) side are fixedly connected with using shell (401) inner wall, the cold plate (406) other side is fixedly connected with thermal insulation board (402).

4. a kind of steel mill's flue gas waste heat power generation device according to claim 1, it is characterised in that: the flue gas device (5) Including flue gas shell (501), it is fixedly connected with filter shell (503) at the top of flue gas shell (501) inner wall, outside the filtering The fixation of shell (503) side is communicated with smoke-intake pipe (502), and the smoke-intake pipe (502) runs through cigarette far from the one end of filter shell (503) Gas shell (501) and the outside for extending to flue gas shell (501), filter shell (503) the inner wall top and bottom are set vertically It is equipped with filter screen chamber (504), the filter screen chamber (504) is internally connected with activated carbon adsorption layer (505), the activated carbon adsorption Layer (505) outer wall is fixedly connected with ceramic honeycomb filtration structure (506), the filter shell close to the side of smoke-intake pipe (502) (503) inner wall bottom is fixedly connected with the first deflector (507), and the is fixedly connected at the top of filter shell (503) inner wall Two deflectors (508).

5. a kind of steel mill's flue gas waste heat power generation device according to claim 4, it is characterised in that: the flue gas shell (501) outer wall side is fixedly connected with chimney flue type hot water heat exchanger (3), and filter shell (503) outer wall is far from smoke-intake pipe (502) side is connected to by connecting pipe with chimney flue type hot water heat exchanger (3) fixation.

6. a kind of steel mill's flue gas waste heat power generation device according to claim 4, it is characterised in that: first deflector (507) and the second deflector (508) is inclined at filter shell (503) inside.

7. a kind of steel mill's flue gas waste heat power generation device according to claim 4, it is characterised in that: the activated carbon adsorption layer (505) it is flexibly connected with filter screen chamber (504) with the outer surface of ceramic honeycomb filtration structure (506).

8. a kind of steel mill's flue gas waste heat power generation device according to claim 1, it is characterised in that: the cooling fin (16) is equal In the inside of drain cooling pipe (15), the material of the cooling fin (16) and drain cooling pipe (15) is copper for even setting.

9. a kind of steel mill's flue gas waste heat power generation device according to claim 1, it is characterised in that: the UTILIZATION OF VESIDUAL HEAT IN chamber (4) two sides of the bottom are fixedly connected with support leg.

10. a kind of steel mill's flue gas waste heat power generation device according to claim 1, it is characterised in that: the chimney flue type hot water Heat exchanger (3) outer wall is communicated with smoke exhaust pipe (17) far from the side fixation of flue gas device (5).