CN103834754B - Blast furnace Ming Tefa using exhaust heat of slag flushing water utilizes combined supply system - Google Patents

Blast furnace Ming Tefa using exhaust heat of slag flushing water utilizes combined supply system Download PDF

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Publication number
CN103834754B
CN103834754B CN201410107384.7A CN201410107384A CN103834754B CN 103834754 B CN103834754 B CN 103834754B CN 201410107384 A CN201410107384 A CN 201410107384A CN 103834754 B CN103834754 B CN 103834754B
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heat
import
water
blast furnace
exchanger rig
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CN103834754A (en
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彭小平
朱少华
赵金标
丁煜
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Wisdri Engineering and Research Incorporation Ltd
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Wisdri Engineering and Research Incorporation Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/52Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

Abstract

The present invention relates to a kind of blast furnace Ming Tefa using exhaust heat of slag flushing water and utilize combined supply system, it includes granulating device, and described granulating device is connected with separating device for water with dregs, settling tank, precipitation accumulation of heat pond successively, described precipitation accumulation of heat pond is connected with the first import of heat-exchanger rig by waste heat working shaft group, first outlet of heat-exchanger rig is connected with granulation water reservoir, second import of heat-exchanger rig is exported with the outlet of heating user and first of refrigeration mechanism respectively by heating working shaft group and is connected, the import of heating user and the first import of refrigeration mechanism export with second of heat-exchanger rig and are connected, second import of refrigeration mechanism to be exported with second of refrigeration mechanism by indoor refrigeration consumer and dehumidified blast user and is connected, the outlet of described granulation water reservoir is connected with granulating device by granulation working shaft group.This system is used for heating, refrigeration or blast furnace dehumidifying air blast trilogy supply and thermo-efficiency high water conditioning.

Description

Blast furnace Ming Tefa using exhaust heat of slag flushing water utilizes combined supply system
Technical field
The present invention relates to a kind of bootstrap system, particularly relate to a kind of blast furnace Ming Tefa using exhaust heat of slag flushing water and utilize combined supply system.
Background technology
The energy is the basis that the mankind depend on for existence.China has the second in the world great energy system, but per capita energy's resources occupation amount is only 1/2 of world standard, and overall energy use efficiency is seriously on the low side relative to developed country.In the face of this reality, the task of save energy is urgently arduous.Steel industry, as mainstay of the national economy industry, plays an important role in China's modernization construction, but is power consumption and heavy polluter, can produce a large amount of residual heat and energies while the consumption energy, promotion mass transfer.The recovery utilization rate of current iron and steel industry residual heat and energy is quite low.As the waste heat of blast furnace slag quenching water, mostly consumed.Therefore the low temperature exhaust heat of steel industry also exists huge recovery potentiality.
Ming Tefa technique is one of current Steel Plant residues processing technique; high-temperature liquid state slag is directly delivered in granulating device and is cooled by the high velocity flow shrend sprayed by this technique; form particulate state grain slag; slag-water slurry is transported to separating device for water with dregs (grain slag processing machine and strainer) to carry out pulp water and is separated; slag after separation is transported by grain slag belt; and remaining high temperature washing slag water enters settling tank by sluice, by granulation working shaft cycling and reutilization after preliminary sedimentation.In blast furnace smelting process, often produce the blast furnace slag that 1t molten iron produces about 0.3t, the heat that blast furnace slag is taken away accounts for 16% of blast furnace total energy consumption, these heats substantially all enter washing slag water, and discharge into the atmosphere along with the circulation of washing slag water, also create water resource waste and thermal pollution while energy dissipation.
At present, the domestic utilization to blast furnace slag quenching water waste heat mainly concentrates northerly iron and steel enterprise, they are only as winter heating thermal source using blast furnace slag quenching water heat, there is no the thermal source as indoor refrigeration or dehumidified blast summer, do not realize blast furnace slag quenching water " trilogy supply ", cause UTILIZATION OF VESIDUAL HEAT IN rate variance, therefore need to develop using exhaust heat of slag flushing water further and utilize potential.In existing washing slag water practical application engineering, washing slag water as heating agent, is directly delivered to heating terminal by part steel mill.But because pulp water contains a large amount of impurity, very easily cause interchanger and end equipment all to block, cause heating system to lose efficacy.And work as interchanger in use for some time, because fouling seriously can only be changed again, with high costs.Contain impurity and suspended substance in washing slag water, if adopt conventional thin matter filtrate to filter, very easily cause slag particle to harden in filtration unit, filtering system was lost efficacy.If utilize conventional dosing method to carry out adding of agent, then because medicament under high-temperature condition volatilizees in a large number, cost is huge.Therefore need a kind of efficient, feasible blast furnace slag quenching water bootstrap system of exploitation, winter can be used for heating, can be used for indoor refrigeration or dehumidified blast summer, improves efficiency of energy utilization.
Summary of the invention
It is reliable that technical problem to be solved by this invention is to provide a kind of water quality, and stablize feasible blast furnace Ming Tefa using exhaust heat of slag flushing water and utilize combined supply system, high temperature washing slag water can be used for heating winter by this system, and summer is used for indoor refrigeration or dehumidified blast.
The technical solution adopted in the present invention is: a kind of blast furnace Ming Tefa using exhaust heat of slag flushing water utilizes combined supply system, it includes granulating device, the outlet of described granulating device is connected with the import of separating device for water with dregs, the outlet of separating device for water with dregs is connected with the import of settling tank, the outlet of settling tank is connected with the import in heat accumulate regulation pond, described heat accumulate regulation pond comprises precipitation accumulation of heat pond and granulation water reservoir, the outlet in described precipitation accumulation of heat pond is connected with the first import of heat-exchanger rig by waste heat working shaft group, first outlet of heat-exchanger rig is connected with the import of granulation water reservoir, second import of heat-exchanger rig is exported with the outlet of heating user and first of refrigeration mechanism respectively by heating working shaft group and is connected, the import of heating user and the first import of refrigeration mechanism export with second of heat-exchanger rig and are connected, second import of refrigeration mechanism exports with indoor refrigeration consumer and is connected with dehumidified blast subscriber's outlet, indoor refrigeration consumer import and dehumidified blast user import export with second of refrigeration mechanism and are connected, the outlet of described granulation water reservoir is connected with granulating device by granulation working shaft group.
By such scheme, described precipitation accumulation of heat pond is connected by partition wall with granulation water reservoir, and precipitation accumulation of heat pond is connected with the top of granulation water reservoir.
By such scheme, described granulation water reservoir is connected with the vapor-recovery unit being positioned at granulating device top by vapor recovery spray pump group.Described vapor recovery spray pump group and vapor-recovery unit, not only make full use of system latent heat, and reduce steam dissipation, realizes energy-conserving and environment-protective.
By such scheme, the ingress in described precipitation accumulation of heat pond is provided with filter residue screen.
By such scheme, described precipitation accumulation of heat pond and the top of settling tank are provided with heat-preserving cover plate, and described precipitation accumulation of heat pond and the wall of settling tank are provided with insulation shell.
By such scheme, between waste heat working shaft group and heat-exchanger rig, be provided with filtration unit, described filtration unit adopts macrobead quartz sand, grain steel as filtrate or adopts self-cleaning filter, increase water quality further, alleviate fouling disadvantageous effect, extend heat-exchanger rig work-ing life, save cost.
Connect such scheme, described heat-exchanger rig adopts board-like or tubular heat exchange device, has the features such as heat exchange efficiency is high, corrosion-resistant and less scaling.
By such scheme, the first import of described heat-exchanger rig is connected with the outlet of chemically-cleaning device by chemical cleaning pump group, and the import of chemically-cleaning device and first of heat-exchanger rig exports and is connected.The regular heat exchanging device of this chemically-cleaning device cleans, and extends heat-exchanger rig work-ing life, saves cost.
System of the present invention is used for heating winter, and summer is used for indoor refrigeration or dehumidified blast, and realize using exhaust heat of slag flushing water and utilize " trilogy supply ", using exhaust heat of slag flushing water is utilized the whole year, and utilization rate of waste heat is high.
Described separating device for water with dregs is positioned at granulating device downstream, and separating device for water with dregs high temperature washing slag water out directly enters settling tank, and settling tank and precipitation accumulation of heat pond shell are provided with heat-preserving cover plate and insulation shell, reduces thermosteresis.Described precipitation accumulation of heat pond import, namely settling tank water side arranges filter residue screen, can improve precipitation accumulation of heat pond influent quality.Described heat accumulate regulation pond possesses precipitation, heat accumulation function, overcomes separating device for water with dregs, settling tank removes the gred halfway shortcoming, improves system water quality, improves security of system, guarantees subsequent user steady running.
Directly enter settling tank from separating device for water with dregs high temperature washing slag water out, the water overflow of settling tank enters precipitation accumulation of heat pond, and after waste heat working shaft group utilizes from the water suction of precipitation accumulation of heat pond for user, backwater enters granulation water reservoir.Described heat accumulate regulation pond is divided into precipitation accumulation of heat pond and granulation water reservoir, and be provided with partition wall in the middle of both, top is communicated with, and when waste heat working shaft group does not work, the water energy overflow in precipitation accumulation of heat pond, in granulation water reservoir, does not affect the Slag treatment granulation recycle system and uses.Namely using exhaust heat of slag flushing water utilizes and has the recycle system of one's own, is granulated the recycle system and does not associate, whenever all do not affect the operation of slag disposal system with Slag treatment.
Described heat accumulate regulation pond increases hot water savings amount, overcomes discontinuous thermal water source's deficiency, the water temperature de-stabilising effect caused of tap cinder, can provide stable thermal source for heating and refrigeration consumer.Described heat-exchanger rig adopts board-like or tubular heat exchanger, has the features such as heat exchange efficiency is high, corrosion-resistant and less scaling.
The present invention establishes a heat accumulate regulation pond after settling tank, heat accumulate regulation pond is divided into precipitation accumulation of heat pond and granulation water reservoir two portions, settling tank hot water for slag flushing in blast furnace is out accumulated in the precipitation accumulation of heat pond in heat accumulate regulation pond through sediment overflow, pressurize through waste heat working shaft group and enter interchanger after device after filtration, washing slag water after heat exchange cooling is got back in granulation water reservoir, uses through granulation working shaft group flushing cinder; During summer, heat-eliminating medium in interchanger after heat exchange heats up is delivered to refrigeration mechanism through heating working shaft group, for refrigeration and blast furnace blast dehumidification, heat-eliminating medium time in the winter time in interchanger after heat exchange heats up is delivered to heating user through heating working shaft group, realizes blast furnace slag quenching water UTILIZATION OF VESIDUAL HEAT IN " trilogy supply "; When waste heat working shaft group does not work, the water energy overflow in precipitation accumulation of heat pond, in granulation water reservoir, does not affect the Slag treatment granulation recycle system and uses; The washing slag water of granulation water reservoir is delivered to through vapor recovery spray pump group the vapor-recovery unit being located at granulating device top, dissipates, make full use of system latent heat to reduce steam.System is provided with chemically-cleaning device, and by chemical cleaning pump group routine cleaning interchanger, the slag particle avoiding interchanger life-time service to cause hardens.
Beneficial effect of the present invention is: 1, this blast furnace Ming Tefa using exhaust heat of slag flushing water utilizes combined supply system to have the recycle system of one's own, is granulated the recycle system does not associate with Slag treatment, does not whenever all affect the operation of slag disposal system.2, this blast furnace Ming Tefa using exhaust heat of slag flushing water utilizes combined supply system winter for heating, and summer is used for indoor refrigeration or dehumidified blast, and realize blast furnace slag quenching water UTILIZATION OF VESIDUAL HEAT IN " trilogy supply ", using exhaust heat of slag flushing water is utilized the whole year, and utilization rate of waste heat is high.3, precipitate water reservoir and be granulated water reservoir and be referred to as heat accumulate regulation pond, which increase hot water savings amount, overcome the impact that the discontinuous thermal water source caused of tap cinder is not enough, water temperature is unstable, stable thermal source can be provided for heating and refrigeration consumer.4, heat accumulate regulation pond possesses precipitation, heat accumulation function, and waste heat working shaft group outfall sewer is provided with filtration unit, further raising system water quality, improves security of system, guarantees that subsequent user is stable and utilizes washing slag water.5, system is provided with vapor recovery spray pump group, can make full use of slag system latent heat, reduces steam and dissipates, not only energy-conservation but also environmental protection.6, be used for the feature of the easy fouling of washing slag water for interchanger, system is provided with chemically-cleaning device, and the regular heat exchanger inside of this chemically-cleaning device is cleaned, and extends interchanger work-ing life, saves cost, solve fouling of heat exchangers problem.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of the present of invention.
In figure: 1, granulating device; 2, separating device for water with dregs; 3, settling tank; 4, filter residue screen 5, precipitation accumulation of heat pond; 6, water reservoir is granulated; 7, waste heat working shaft group; 8, filtration unit; 9, heat-exchanger rig; 10, refrigeration mechanism; 11, heating user; 12, indoor refrigeration consumer; 13, dehumidified blast user; 14, heating working shaft group, 15, chemically-cleaning device; 16, chemical cleaning pump group; 17, working shaft group is granulated; 18, vapor recovery spray pump group; 19, vapor-recovery unit; 20 ~ 42, trip valve; 50, heat accumulate regulation pond; 201, sluice; 202, grain slag processing machine; 203, strainer; 101, hot water operated absorption refrigerating machine's group; 102, heat-eliminating medium transferpump.
Embodiment
Embodiments of the invention are further illustrated below in conjunction with accompanying drawing.
See Fig. 1, a kind of blast furnace Ming Tefa using exhaust heat of slag flushing water utilizes combined supply system, it comprises the granulating device 1 matched with blast furnace, the outlet of described granulating device 1 is connected with the import of separating device for water with dregs 2, the outlet of separating device for water with dregs 2 is connected with the import of settling tank 3, the outlet of settling tank 3 is connected with the import in precipitation accumulation of heat pond 5, the outlet in precipitation accumulation of heat pond 5 is connected with the first import of heat-exchanger rig 9 with filtration unit 8 by waste heat working shaft group 7 successively, first outlet of heat-exchanger rig 9 is connected with the import of granulation water reservoir 6, second import of heat-exchanger rig 9 is exported with the outlet of heating user 11 and first of refrigeration mechanism 10 respectively by heating working shaft group 14 and is connected, the import of heating user 11 and the first import of refrigeration mechanism 10 export with second of heat-exchanger rig 9 and are connected, second import and the indoor refrigeration consumer 12 of refrigeration mechanism 10 export to export with dehumidified blast user 13 and are connected, indoor refrigeration consumer 12 import and dehumidified blast user 13 import export with second of refrigeration mechanism 10 and are connected, the outlet of described granulation water reservoir 6 is connected with granulating device 1 by granulation working shaft group 17.
In the present embodiment, described precipitation accumulation of heat pond 5 is connected by partition wall with granulation water reservoir 6, and precipitation accumulation of heat pond 5 is connected with the top of granulation water reservoir 6.Described granulation water reservoir 6 is connected with the vapor-recovery unit 19 being positioned at granulating device 1 top by vapor recovery spray pump group 18.Described vapor recovery spray pump group 18 and vapor-recovery unit 19, not only make full use of system latent heat, and reduce steam dissipation, energy-conserving and environment-protective.Described filtration unit 8 adopts macrobead quartz sand, grain steel as filtrate or adopts self-cleaning filter, increases water quality further, alleviates fouling disadvantageous effect, extend heat-exchanger rig 9 work-ing life, thus save cost.First import of described heat-exchanger rig 9 is connected by the outlet of chemical cleaning pump group 14 with chemically-cleaning device 15, and the import of chemically-cleaning device 15 and first of heat-exchanger rig 9 exports and is connected.This chemically-cleaning device 15 regularly heat exchanging device 9 cleans, and extends heat-exchanger rig 9 work-ing life, saves cost.
In the present invention, separating device for water with dregs 2 comprises sluice 201, grain slag processing machine 202 and strainer 203.Refrigeration mechanism comprises hot water operated absorption refrigerating machine and organizes 101 and heat-eliminating medium transferpump 102.
In order to purify water further, the ingress in described precipitation accumulation of heat pond 5 is provided with filter residue screen 4.In order to reduce thermosteresis, heat-preserving cover plate can be established above precipitation accumulation of heat pond 5 and settling tank 3, establishing insulation shell at the wall of precipitation accumulation of heat pond 5 and settling tank 3.
Washing slag water contacts with the blast furnace slag of high-temperature fusion at granulating device 1; produce a large amount of steam and high temperature washing slag water; slag-water slurry realizes being separated of slag and water through separating device for water with dregs 2; slag by belt-conveying to grain slag stockyard; water then enters settling tank 3 by water delivery open channel; most of solid impurity particle residual in washing slag water is deposited on bottom settling tank 3; water overflow after filter residue screen 4 is accumulated in precipitation accumulation of heat pond 5; precipitation accumulation of heat pond 5 possesses precipitation, heat accumulation function, further raising system water quality and stable water temperature.Waste heat working shaft group 7 is from the below water intaking in precipitation accumulation of heat pond 5, enter in heat-exchanger rig 9 after being conveyed through filter device 8 outside adherence pressure is backward, in heat-exchanger rig 9, washing slag water and de-salted water (soft water) carry out heat exchange, washing slag water temperature drop is low, and de-salted water (soft water) temperature raises; Washing slag water water outlet after heat exchange cooling is got back in granulation water reservoir 6.In summer, the cold that de-salted water (soft water) after heat-exchanger rig 9 heats up produces through refrigeration mechanism 10 is delivered to indoor refrigeration consumer 12 or dehumidified blast user 13 by coolant media, now trip valve 26 and trip valve 28 are opened, trip valve 25 and trip valve 27 are closed, de-salted water (soft water) after being utilized gets back to heat-exchanger rig 9 again through heating working shaft group 14, again carry out heat exchange, form a cooling cycle system.In the winter time, refrigeration mechanism 10 break-off, close trip valve 26 and trip valve 28, open trip valve 25 and trip valve 27, de-salted water (soft water) after heat-exchanger rig 9 heats up enters heating user 11, backwater gets back to heat-exchanger rig 9 again by heating working shaft group 14 afterwards, again carries out heat exchange, forms the heating circulation system that another is closed.Granulation working shaft group 17, from the below water intaking of granulation water reservoir, enters granulating device 1 by transport pipe after adherence pressure, forms the Slag treatment granulation recycle system.In some month in spring, autumn; or time unit cooler and heating system need to overhaul; unit cooler and heating system may not need to run; now trip valve 20 and trip valve 24 are all closed; the washing slag water overflow in precipitation accumulation of heat pond 5, in granulation water reservoir 6, guarantees the normal work of blast furnace slag processing system.After heat-exchanger rig runs for some time, heat exchanging device is needed to carry out cleaning (when heat-exchanger rig normally uses, open trip valve 22 and trip valve 24, close trip valve 35 and trip valve 37).Now close trip valve 22 and trip valve 24, open trip valve 35 and trip valve 37, open chemical cleaning pump group 16 heat exchanging device 9 and clean.Vapor recovery spray pump group 18 entrance takes from granulation water reservoir 6, and cleaner washing slag water is delivered to the vapor-recovery unit 19 at granulating device 1 top by it, for the high-temperature steam at retrieving arrangement top.
The present invention's transport pipe used all needs to carry out being incubated and damp-proof treatment, reduces the loss of heat in Pipe transfer process.
In sum, native system can make using exhaust heat of slag flushing water utilize and obtain annual utilization, and thermo-efficiency is high, fully reclaims granulating device overhead vapor, realizes energy-conserving and environment-protective; System is provided with precipitation, accumulation of heat and filtration unit, can improve system water quality further, improves security of system, guarantees subsequent user steady running; System is provided with chemically-cleaning device, extends heat-exchanger rig work-ing life, saves cost.Therefore the invention provides a kind of water quality reliable, stablize feasible, the blast furnace slag quenching water bootstrap system of perfect in shape and function.

Claims (8)

1. a blast furnace Ming Tefa using exhaust heat of slag flushing water utilizes combined supply system, it includes granulating device, the outlet of described granulating device is connected with the import of separating device for water with dregs, the outlet of separating device for water with dregs is connected with the import of settling tank, it is characterized in that: the outlet of settling tank is connected with the import in heat accumulate regulation pond, described heat accumulate regulation pond comprises precipitation accumulation of heat pond and granulation water reservoir, the outlet in described precipitation accumulation of heat pond is connected with the first import of heat-exchanger rig by waste heat working shaft group, first outlet of heat-exchanger rig is connected with the import of granulation water reservoir, second import of heat-exchanger rig is exported with the outlet of heating user and first of refrigeration mechanism respectively by heating working shaft group and is connected, the import of heating user and the first import of refrigeration mechanism export with second of heat-exchanger rig and are connected, second import of refrigeration mechanism exports with indoor refrigeration consumer and is connected with dehumidified blast subscriber's outlet, indoor refrigeration consumer import and dehumidified blast user import export with second of refrigeration mechanism and are connected, the outlet of described granulation water reservoir is connected with granulating device by granulation working shaft group, described precipitation accumulation of heat pond is connected by partition wall with granulation water reservoir, and precipitation accumulation of heat pond is connected with the top of granulation water reservoir, the ingress in described precipitation accumulation of heat pond is provided with filter residue screen.
2. blast furnace Ming Tefa using exhaust heat of slag flushing water as claimed in claim 1 utilizes combined supply system, it is characterized in that: described granulation water reservoir is connected with the vapor-recovery unit being positioned at granulating device top by vapor recovery spray pump group.
3. blast furnace Ming Tefa using exhaust heat of slag flushing water as claimed in claim 1 utilizes combined supply system, and it is characterized in that: described precipitation accumulation of heat pond and the top of settling tank are provided with heat-preserving cover plate, described precipitation accumulation of heat pond and the wall of settling tank are provided with insulation shell.
4. blast furnace Ming Tefa using exhaust heat of slag flushing water as claimed in claim 1 utilizes combined supply system, it is characterized in that: between waste heat working shaft group and heat-exchanger rig, be provided with filtration unit.
5. blast furnace Ming Tefa using exhaust heat of slag flushing water as claimed in claim 4 utilizes combined supply system, it is characterized in that: described filtration unit adopts macrobead quartz sand, grain steel as filtrate or adopts self-cleaning filter.
6. blast furnace Ming Tefa using exhaust heat of slag flushing water as claimed in claim 1 utilizes combined supply system, it is characterized in that: described heat-exchanger rig adopts board-like or tubular heat exchange device.
7. the blast furnace Ming Tefa using exhaust heat of slag flushing water as described in claim 1 or 6 utilizes combined supply system, it is characterized in that: the first import of described heat-exchanger rig is connected with the outlet of chemically-cleaning device by chemical cleaning pump group, the import of chemically-cleaning device and first of heat-exchanger rig exports and is connected.
8. the arbitrary described blast furnace Ming Tefa using exhaust heat of slag flushing water of claim 1-7 utilizes the application of combined supply system, it is characterized in that: described application be winter for heating, summer is used for indoor refrigeration or dehumidified blast, realizes using exhaust heat of slag flushing water and utilizes " trilogy supply ".
CN201410107384.7A 2014-01-13 2014-03-21 Blast furnace Ming Tefa using exhaust heat of slag flushing water utilizes combined supply system Active CN103834754B (en)

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CN110375557B (en) * 2019-07-09 2021-02-23 鞍钢股份有限公司 System and method for recovering waste heat of blast furnace slag flushing water
CN110388685B (en) * 2019-07-09 2021-05-28 鞍钢股份有限公司 System and method for simultaneously recovering multiple industrial waste heat

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CN203768383U (en) * 2014-01-13 2014-08-13 中冶南方工程技术有限公司 Minter-process slag flushing water waste heat utilized triple supplying system for blast furnace

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CN102864255A (en) * 2012-09-19 2013-01-09 中冶南方工程技术有限公司 Safety control method for blast furnace minter process slag treatment granulation water supply system
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