CN106123606A - Sintering circular-cooler exhaust heat utilization system - Google Patents
Sintering circular-cooler exhaust heat utilization system Download PDFInfo
- Publication number
- CN106123606A CN106123606A CN201610518889.1A CN201610518889A CN106123606A CN 106123606 A CN106123606 A CN 106123606A CN 201610518889 A CN201610518889 A CN 201610518889A CN 106123606 A CN106123606 A CN 106123606A
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- Prior art keywords
- flue gas
- cooler
- water
- low temperature
- waste heat
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
- F27D15/02—Cooling
- F27D15/0286—Cooling in a vertical, e.g. annular, shaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
- F01K17/04—Using steam or condensate extracted or exhausted from steam engine plant for specific purposes other than heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/001—Extraction of waste gases, collection of fumes and hoods used therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
- F27D2017/006—Systems for reclaiming waste heat using a boiler
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The open a kind of sintering circular-cooler exhaust heat utilization system of the present invention, the problem that can not make full use of waste heat mainly for existing central cooler bootstrap system, propose a kind of sintering circular-cooler exhaust heat utilization system, including smoke circulating system and flue gas replenishment system;Described smoke circulating system includes that passing sequentially through pipeline connects into central cooler routine waste heat recovery section, high temperature exhaust fume collecting hood, high temperature stacks, waste heat boiler, fume gas condensation water-to-water heat exchanger and the circulating fan of closed circuit;Described flue gas replenishment system includes that the central cooler low temperature unconventional waste heat recovery section, low temperature exhaust fume collecting hood, low temperature chimney and the low temperature that are sequentially connected take wind pipeline;Described low temperature takes wind pipeline and is connected with the smoke discharging pipe of described waste heat boiler, and described fume gas condensation water-to-water heat exchanger is in parallel with the low-pressure heater of generating set heat regenerative system.The present invention improves the organic efficiency of central cooler waste gas residual heat, and reduces return air temperature, is conducive to extending the service life of central cooler equipment.
Description
Technical field
The present invention relates to a kind of sintering circular-cooler exhaust heat utilization system.
Background technology
In each operation that iron and steel produces, sintering circuit is big power consumer, and its energy consumption is only second to Iron-smelting.Sintered ring
Cold is the postprocessing device of sintering process, for the temperature of sintering deposit being cooled under 150 DEG C.The high temperature of central cooler gives up
Gas is valuable residual heat resources, as a example by the central cooler of conventional 198m2 sintering machine configuration, and only one section of high-temp waste gas of central cooler
Flow the most up to 200,000 Nm3/h of (temperature is about 350~450 DEG C), if the waste gas residual heat of central cooler can be made full use of, can receive
Obtain considerable economic benefit.
Land use systems currently for central cooler waste gas residual heat mainly uses routine to take wind pipeline+waste heat boiler+circulation
The form of blower fan+return air duct, i.e. takes wind pipeline by routine and the high-temp waste gas of central cooler is delivered to waste heat boiler carries out heat exchange,
The low-temperature flue gas that waste heat boiler is discharged enters circulating fan, returns to central cooler through return air duct after being pressurizeed by circulating fan.
The program can produce considerable economic benefit, and owing to waste gas achieves closed cycle, effectively prevent the particulate matter in waste gas
The problem of environmental pollution that causes of discharge, therefore it has become the central cooler waste heat recovery mode of main flow, but the program
Yet suffering from bigger deficiency: 1) heat boiler outlet cigarette temperature is still up to about 150 DEG C, and higher return air temperature can be cold to ring
The operation of machine adversely affects: the central cooler cooling higher running environment causing central cooler of pathogenic wind-warm deteriorates, and causes static and dynamic sealing
Being easily damaged, accelerate central cooler frame deformation, central cooler couples the problems such as position weld cracking;2) due to the cooling wind of central cooler
Amount is very big, and the waste gas that heat boiler outlet is about 150 DEG C contains huge sensible heat resource, and this sensible heat resource still has very
Big use value, if being the most directly back to central cooler, although can improve central cooler high temperature section flue-gas temperature from
And improve waste heat boiler to a certain extent and exert oneself, but yet suffer from bigger energy waste.
Summary of the invention
For the problems referred to above, the present invention provides a kind of sintering circular-cooler waste gas heat utilization making full use of central cooler waste heat
System.
For reaching above-mentioned purpose, sintering circular-cooler exhaust heat utilization system of the present invention, including smoke circulating system;
Described smoke circulating system include passing sequentially through pipeline connect into closed circuit central cooler routine waste heat recovery section,
High temperature exhaust fume collecting hood, high temperature stacks, waste heat boiler, flue gas-condensation water-to-water heat exchanger and circulating fan;Described flue gas-condensation water heat exchange
Device is in parallel with the low-pressure heater of generating set therrmodynamic system.
Further, flue gas replenishment system is also included;
Described flue gas replenishment system includes central cooler low temperature unconventional waste heat recovery section, to be arranged on central cooler low temperature unconventional
Low temperature exhaust fume collecting hood in waste heat recovery section and the low temperature chimney connected with described low temperature exhaust fume collecting hood, described low temperature chimney passes through low temperature
Take wind pipeline to connect with the smoke discharging pipe of described waste heat boiler.
Further, described high temperature stacks takes wind pipeline with the smoke inlet of described waste heat boiler by routine and connects, institute
State routine to take and on wind pipeline, be disposed with hot precipitator and high-temperature stream gauge along flow of flue gas direction;
Described waste heat boiler is connected with the air inlet of described circulating fan by the smoke discharging pipe of described waste heat boiler, described
The air outlet of circulating fan is connected with described central cooler routine waste heat recovery section by return air duct;
The going out of described low-pressure heater group, the going out of water inlet pipe and described flue gas-condensation water-to-water heat exchanger, water inlet passes through cigarette
Gas-condensation water-to-water heat exchanger goes out, water inlet pipe connection, the going out of described low-pressure heater group, water inlet pipe and described flue gas-condensation water
Heat exchanger goes out, be provided with control valve on water inlet pipe.
Further, described generating set therrmodynamic system includes being sequentially communicated power station steam turbine, condenser, condensation water
Pump, gland heater and low-pressure heater group;
The water inlet of described flue gas-condensation water-to-water heat exchanger connects with the water inlet pipe of described low-pressure heater group, described cigarette
The outlet of gas-condensation water-to-water heat exchanger connects with the outlet conduit of described low-pressure heater group.
Further, the water inlet pipe of described flue gas-condensation water-to-water heat exchanger is provided with booster pump.
Further, described routine takes the entrance of wind pipeline and is provided with the first cigarette air valve, the outlet of described high temperature stacks
Being provided with the second cigarette air valve, the return air inlet of described central cooler routine waste heat recovery section is provided with the 3rd cigarette air valve.
Further, the flow direction that described low temperature takes on wind pipeline along flue gas is disposed with cold precipitator and low temperature
Effusion meter.
Further, described low temperature takes wind pipeline entrance and is provided with the 4th cigarette air valve, and described low temperature chimney breast is arranged
There is the 5th cigarette air valve.
Further, described central cooler return air duct is provided with diffusing chimney, described diffusing chimney is provided with the 6th
Cigarette air valve.
The waste gas residual heat of sintering circular-cooler is comprehensively utilized by sintering circular-cooler exhaust heat utilization system of the present invention, will
Sintering circular-cooler routine waste heat recovery section and the unified consideration of low temperature non-waste heat recovery section, all recycle, first pass through waste heat
The high-temp waste gas of sintering circular-cooler routine waste heat recovery section is effectively utilized by boiler, produces valuable steam resource;Then
The low-temperature flue gas of low temperature waste gas waste heat recovery unconventional with the central cooler low temperature section discharged by waste heat boiler mixes and is used for
Condensation water in heating Steam Turbine Regenerative System, can reduce the regenerative steam amount of low-pressure heater, and the regenerative steam saved can
To continue acting in steam turbine, increase the generated energy of generating set.
Sintering circular-cooler exhaust heat utilization system of the present invention is greatly reduced by the setting of flue gas-condensation water-to-water heat exchanger
The return air temperature of central cooler, improves the working environment of the circulating fan in cigarette distinguished and admirable journey downstream, extends the operation of circulating fan
Life-span.
Sintering circular-cooler exhaust heat utilization system of the present invention reduces the return air temperature of central cooler, with traditional waste heat pot
Outlet of still flue gas is directly back to the method for central cooler and compares the cooling effect improving central cooler high temperature section so that the fortune of central cooler
Row operating mode is more nearly design conditions, reduces owing to arranging central cooler outlet sintering deposit of air return system is temperature controlled not
Profit impact, better ensures that the quality of sintering deposit.
Sintering circular-cooler exhaust heat utilization system of the present invention reduces the return air temperature of central cooler, improves central cooler
Working environment, can reduce the downtime of central cooler, reduces maintenance of equipment expense, improves equipment operation rate.
Accompanying drawing explanation
Fig. 1 is the flow chart of sintering circular-cooler exhaust heat utilization system of the present invention.
Detailed description of the invention
Below in conjunction with Figure of description, the present invention will be further described.
Embodiment 1
As it is shown in figure 1, the sintering circular-cooler exhaust heat utilization system of the present embodiment, including smoke circulating system;
Described smoke circulating system includes that passing sequentially through pipeline connects into the central cooler routine waste heat recovery section of closed circuit
1, high temperature exhaust fume collecting hood 2, high temperature stacks 3, waste heat boiler 5, flue gas-condensation water-to-water heat exchanger 7 and circulating fan 8;Described flue gas-condensation
Water-to-water heat exchanger 7 is in parallel with the low-pressure heater of generating set therrmodynamic system.
Power station steam turbine 10 that described generating set therrmodynamic system includes being sequentially communicated, condenser 11, condensate pump 12, axle
Envelope heater 13 and low-pressure heater group 14;
The water inlet of described flue gas-condensation water-to-water heat exchanger 7 connects with the water inlet pipe of described low-pressure heater group 14, described
The outlet of flue gas-condensation water-to-water heat exchanger 7 connects with the outlet conduit of described low-pressure heater group 14.
Described low-pressure heater group 14 can be a low-pressure heater in Steam Turbine Regenerative System, can also be several
The combination of heater.
The waste gas residual heat of sintering circular-cooler is comprehensively utilized by the present embodiment sintering circular-cooler exhaust heat utilization system,
First pass through waste heat boiler 5 and the high-temp waste gas of sintering circular-cooler has been carried out effective utilization, produce valuable steam resource;Then will
The low temperature waste gas of about 150 DEG C of waste heat boiler 5 discharge is used for heating coagulating in power plant for self-supply of steel plant Steam Turbine Regenerative System
Bear water, the regenerative steam amount of Steam Turbine Regenerative System low-pressure heater can be reduced, and the regenerative steam saved can be steam turbine
Middle continuation is done work, and increases the generated energy of generating set.
The present embodiment sintering circular-cooler exhaust heat utilization system passes through power plant for self-supply of steel plant generating set therrmodynamic system
Low-temperature condensate (about 30 DEG C) absorb the waste-gas heat of heat boiler outlet further, reduce the return air temperature of central cooler
Degree, improves the working environment of the circulating fan 8 in cigarette distinguished and admirable journey downstream, extends the service life of circulating fan 8;Additionally, by
Reducing in temperature, the import flue gas volume of circulating fan 8 reduces the most therewith, and then the energy-saving run of beneficially circulating fan 8.
The present embodiment sintering circular-cooler exhaust heat utilization system reduces the return air temperature of central cooler, with traditional waste heat
Boiler 5 exiting flue gas is directly back to the method for central cooler and compares the cooling effect improving central cooler high temperature section so that central cooler
Operating condition be more nearly design conditions, reduce due to air return system arranging to central cooler outlet sintering deposit temperature control
Adverse effect, better ensure that the quality of sintering deposit.
The present embodiment sintering circular-cooler exhaust heat utilization system reduces the return air temperature of central cooler, improves central cooler
Working environment, the downtime of central cooler can be reduced, reduce maintenance of equipment expense, improve equipment operation rate.
Embodiment 2
On the basis of above-described embodiment, described high temperature stacks 3 is taken by routine with the smoke inlet of described waste heat boiler 5
Wind pipeline 4 connects, and described routine takes and is disposed with hot precipitator 22 and high temperature flow on wind pipeline 4 along flow of flue gas direction
Meter 23;
Described waste heat boiler 5 is connected with described circulating fan 8 by the smoke discharging pipe 6 of described waste heat boiler, described circulation
Blower fan 8 is connected with described central cooler routine waste heat recovery section 1 by return air duct 9;
The going out of described low-pressure heater group 14, the going out of water inlet pipe and described flue gas-condensations water-to-water heat exchanger 7, water inlet are logical
Cross flue gas-condensation water-to-water heat exchanger 7 go out, water inlet pipe connection, the going out of described low-pressure heater group 14, water inlet pipe and described cigarette
Gas-condensation water-to-water heat exchanger 7 goes out, be provided with control valve 15 on water inlet pipe.
The present embodiment takes in routine and arranges high-temperature stream gauge 23 on wind pipeline 4, in real time detection central cooler routine waste heat recovery
Section 1 take wind flow.
Owing to blowing out from sintering feed in flue gas, will necessarily carry granular material, granular material is at pipeline
Pipeline can be washed away the when of interior circulation, form abrasion, reduce the abrasion to pipeline, therefore, routine is taken on wind pipeline 4
Being provided with hot precipitator 22, described hot precipitator 22 sets according to the direction of flow of flue gas successively with described high-temperature stream gauge 23
Put.
Embodiment 3
On the basis of above-described embodiment, the sintering circular-cooler exhaust heat utilization system of the present embodiment also includes that flue gas is mended
Charging system, described flue gas replenishment system includes central cooler low temperature unconventional waste heat recovery section 17, is arranged on central cooler low temperature very
Advise the low temperature exhaust fume collecting hood 18 in waste heat recovery section 17 and the low temperature chimney 19 connected with described low temperature exhaust fume collecting hood 18, described low temperature cigarette
Chimney 19 takes wind pipeline 20 by low temperature and connects with the smoke discharging pipe 6 of described waste heat boiler 5.
On the one hand, central cooler low-temperature zone flue gas due to temperature relatively low, it is more difficult to effectively utilize, be the most all direct
Enter air by central cooler low-temperature zone chimney, not only cause environmental pollution, also create energy dissipation;And on the other hand,
Owing to the Gas Parameters of the conventional waste heat recovery section 1 of sintering circular-cooler is the most unstable, cause the Gas Parameters entering waste heat boiler
Also unstable, and when Gas Parameters occurs fluctuation, the heat exchange amount of flue gas-condensation water-to-water heat exchanger 7 also can fluctuate, and causes generating
The exclusion amount of drawing gas of power generator turbine fluctuates, and then causes the change of steam turbine axial thrust, jeopardizes the peace of generating set
Complete and stable operation.To this end, the flue gas of the low-temperature zone of sintering circular-cooler is collected by the present embodiment, it is used as flue gas recirculation
The supplementary flue gas of system, the low-temperature zone waste gas residual heat of the most recyclable part central cooler, it may also be used for regulation enters flue gas-condensation
The flue gas flow of water-to-water heat exchanger, stablizes the heat exchange amount of flue gas-condensation water-to-water heat exchanger, and then ensures the stable operation of generating set.
It addition, in order to ensure condense water can overcome the resistance of ducting, it is ensured that condense water can trouble-free operation, can be described
It is provided with booster pump 16 on the water inlet pipe of flue gas-condensation water-to-water heat exchanger 7.
Further, described routine takes the entrance of wind pipeline 4 and is provided with the first cigarette air valve 21, described high temperature stacks 3
Outlet is provided with the second cigarette air valve 24, and the return air inlet of described central cooler routine waste heat recovery section 1 is provided with the 3rd cigarette air valve
31.When waste heat boiler 5 bringing normally into operation, the first cigarette air valve 21 is opened the second cigarette air valve 24 and is closed, in waste heat boiler 5 accident
During stoppage in transit, the first cigarette air valve 21 is closed the second cigarette air valve 24 and is opened, the 3rd cigarette air valve that described return air duct 9 is installed
31, play cutting action, the standard-sized sheet when waste heat boiler 5 runs, close when waste heat boiler 5 is stopped transport.
Further, the flow direction that described low temperature takes on wind pipeline 20 along flue gas is disposed with cold precipitator 26 He
Cryogenic flow meter 27, is respectively used to remove the particulate matter in low-temperature flue gas and the flow of detection low-temperature flue gas.
Further, described low temperature takes wind pipeline 20 entrance and is provided with the 4th cigarette air valve 25, and described low temperature chimney 19 goes out
Mouth is provided with the 5th cigarette air valve 28.So can regulate low temperature and take the flue gas flow in wind pipeline 20.
Further, described central cooler return air duct 9 is provided with diffusing chimney 29, described diffusing chimney is provided with
Six cigarette air valves 30.
Diffusing chimney 29 is arranged on return air duct 30, cigarette in the Start-up and Adjustment or return air duct 11 of circulating fan 29
Tolerance diffuse regulation.
Above, only presently preferred embodiments of the present invention, but protection scope of the present invention is not limited thereto, any it is familiar with basis
Those skilled in the art in the technical scope that the invention discloses, the change that can readily occur in or replacement, all should contain
Within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claim is defined.
Claims (9)
1. a sintering circular-cooler exhaust heat utilization system, it is characterised in that: include smoke circulating system;
Described smoke circulating system includes that passing sequentially through pipeline connects into the central cooler routine waste heat recovery section of closed circuit, high temperature
Exhaust fume collecting hood, high temperature stacks, waste heat boiler, flue gas-condensation water-to-water heat exchanger and circulating fan;Described flue gas-condensation water-to-water heat exchanger with
The low-pressure heater of generating set therrmodynamic system is in parallel.
2. sintering circular-cooler exhaust heat utilization system as claimed in claim 1, it is characterised in that: also include that flue gas supplements system
System;
Described flue gas replenishment system includes central cooler low temperature unconventional waste heat recovery section, is arranged on the unconventional waste heat of central cooler low temperature
Low temperature exhaust fume collecting hood on exhausting section and the low temperature chimney connected with described low temperature exhaust fume collecting hood, described low temperature chimney takes wind by low temperature
Pipeline connects with the smoke discharging pipe of described waste heat boiler.
3. sintering circular-cooler exhaust heat utilization system as claimed in claim 1, it is characterised in that: described high temperature stacks is with described
The smoke inlet of waste heat boiler takes wind pipeline by routine and connects, and described routine takes and sets successively along flow of flue gas direction on wind pipeline
It is equipped with hot precipitator and high-temperature stream gauge;
Described waste heat boiler is connected with the air inlet of described circulating fan by the smoke discharging pipe of described waste heat boiler, described circulation
The air outlet of blower fan is connected with described central cooler routine waste heat recovery section by return air duct;
The going out of described low-pressure heater group, the going out of water inlet pipe and described flue gas-condensations water-to-water heat exchanger, water inlet passes through flue gas-
Condense water-to-water heat exchanger go out, water inlet pipe connection, the going out of described low-pressure heater group, water inlet pipe and described flue gas-condensation water change
Hot device goes out, be provided with control valve on water inlet pipe.
4. as claimed in claim 1 sintering circular-cooler exhaust heat utilization system, it is characterised in that: described generating set heating power system
System includes power station steam turbine, condenser, condensate pump, gland heater and the low-pressure heater group being sequentially communicated;
The water inlet of described flue gas-condensation water-to-water heat exchanger connects with the water inlet pipe of described low-pressure heater group, described flue gas-solidifying
The outlet conduit of the outlet and described low-pressure heater group that bear water heat exchanger connects.
5. sintering circular-cooler exhaust heat utilization system as claimed in claim 1, it is characterised in that: described flue gas-condensation water changes
It is provided with booster pump on the water inlet pipe of hot device.
6. sintering circular-cooler exhaust heat utilization system as claimed in claim 1, it is characterised in that: described routine takes wind pipeline
Entrance is provided with the first cigarette air valve, and the outlet of described high temperature stacks is provided with the second cigarette air valve, more than described central cooler routine
The return air inlet of heat-recovery section is provided with the 3rd cigarette air valve.
7. sintering circular-cooler exhaust heat utilization system as claimed in claim 2, it is characterised in that: described low temperature takes on wind pipeline
Flow direction along flue gas is disposed with cold precipitator and cryogenic flow meter.
8. sintering circular-cooler exhaust heat utilization system as claimed in claim 2, it is characterised in that: described low temperature takes wind pipeline and enters
Mouth is provided with the 4th cigarette air valve, and described low temperature chimney breast is provided with the 5th cigarette air valve.
9. sintering circular-cooler waste gas residual heat recycling system as claimed in claim 3, it is characterised in that: described central cooler return air
It is provided with diffusing chimney on pipeline, described diffusing chimney is provided with the 6th cigarette air valve.
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Cited By (3)
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CN108592646A (en) * | 2018-06-05 | 2018-09-28 | 马鞍山钢铁股份有限公司 | A kind of sintering waste heat generating system waste-heat recovery device and application method |
CN108786455A (en) * | 2018-08-20 | 2018-11-13 | 山东国舜建设集团有限公司 | A kind of sintering flue gas SCR denitration device heat utilization system and method for denitration |
CN112985093A (en) * | 2021-03-26 | 2021-06-18 | 天津裕嘉源环保科技有限公司 | Efficient power generation technology for eliminating unorganized emission of flue gas of sintering circular cooler |
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CN108592646A (en) * | 2018-06-05 | 2018-09-28 | 马鞍山钢铁股份有限公司 | A kind of sintering waste heat generating system waste-heat recovery device and application method |
CN108786455A (en) * | 2018-08-20 | 2018-11-13 | 山东国舜建设集团有限公司 | A kind of sintering flue gas SCR denitration device heat utilization system and method for denitration |
CN108786455B (en) * | 2018-08-20 | 2023-08-01 | 山东国舜建设集团有限公司 | Heat utilization system and denitration method of sintering flue gas SCR denitration device |
CN112985093A (en) * | 2021-03-26 | 2021-06-18 | 天津裕嘉源环保科技有限公司 | Efficient power generation technology for eliminating unorganized emission of flue gas of sintering circular cooler |
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