CN110468242A - A kind of blast furnace slag quenching water is independently fetched water residual neat recovering system - Google Patents
A kind of blast furnace slag quenching water is independently fetched water residual neat recovering system Download PDFInfo
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- CN110468242A CN110468242A CN201910710552.4A CN201910710552A CN110468242A CN 110468242 A CN110468242 A CN 110468242A CN 201910710552 A CN201910710552 A CN 201910710552A CN 110468242 A CN110468242 A CN 110468242A
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- slag
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- heat exchange
- blast furnace
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 350
- 239000002893 slag Substances 0.000 title claims abstract description 153
- 238000010791 quenching Methods 0.000 title claims abstract description 14
- 230000000171 quenching effect Effects 0.000 title claims abstract description 14
- 238000005406 washing Methods 0.000 claims abstract description 120
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 238000004064 recycling Methods 0.000 claims abstract description 7
- 238000001816 cooling Methods 0.000 claims description 18
- 239000003507 refrigerant Substances 0.000 claims description 15
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 14
- 238000005469 granulation Methods 0.000 claims description 11
- 230000003179 granulation Effects 0.000 claims description 11
- 238000004080 punching Methods 0.000 claims 1
- 238000011010 flushing procedure Methods 0.000 abstract description 29
- 239000003818 cinder Substances 0.000 abstract description 21
- 239000000284 extract Substances 0.000 abstract description 15
- 239000007787 solid Substances 0.000 abstract description 10
- 238000000605 extraction Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 239000002918 waste heat Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001376 precipitating effect Effects 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
- C21B3/08—Cooling slag
-
- 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
-
- 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
- Y02P10/20—Recycling
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
It independently fetches water residual neat recovering system the present invention provides a kind of blast furnace slag quenching water, it is related to blast furnace in metallurgical industry exhaust heat of slag flushing water recycling field, including water intake conduit, water tank, water intaking water pump, heat exchange unit, washing slag water outlet conduit and slag-washing-out pump, close to being connected at liquid level in the water inlet of water intake conduit of the invention and tank, the high temperature washing slag water that the solid content that heat exchange unit is capable of independent draws tank top is low, water quality is good, so that heat exchange unit is not easy to plug, failure rate is low, easy to maintain；When blast furnace slag flushing, slag-washing-out pump operation can converge with washing slag water outlet conduit inner cold water after the high temperature washing slag water heat exchange that water intaking water pump extracts and carry out flushing cinder for slag-washing-out pump extraction；When blast furnace not flushing cinder, the bottom of tank is entered after the washing slag water heat exchange that water intaking water pump extracts, heat exchange unit is enabled to continue to exchange heat.
Description
Technical field
The present invention relates to blast furnace in metallurgical industry exhaust heat of slag flushing water recycling field more particularly to a kind of blast furnace slag quenching water are only
Vertical water intaking residual neat recovering system.
Background technique
Blast furnace ironmaking generates a large amount of high-temperature slags, generates a large amount of 60~90 DEG C of washing slag waters after water quenching, washing slag water, usually
Guarantee washing slag water recycles effect, after needing to cool down this part washing slag water by way of Temperature fall or cooling tower
Flushing cinder is continued cycling through, in recent years, the heat lost in washing slag water temperature-fall period is recycled by the way of indirect heat exchange
Using in the implementation of most of steel mill.
The process flow that pulp water waste heat currently used for having pulp water cooling tower in flushing cinder system recycles is directly to take thermal technology
Process system is specially pacified on upper tower pump line road using tower pump (heat-exchanger pump) in blast furnace slag flushing system as pulp water circulation power
Stop valve is filled, pulp water is bypassed to heat exchange unit, and pulp water is directly entered cold rinse bank after heat exchange, and heat exchange unit and pulp water are cooling
Tower is in parallel；But in practice, since other than grain slag, there are also more suspended matter, plastic bottle, weavings in pulp water pond
The foreign matters such as object and stone, these foreign matters easily cause pulp water heat exchange unit to block, so that slag-water heat exchanger can not be steady in a long-term
Operation not only influences the operation of blast furnace slag flushing system, but also influences the UTILIZATION OF VESIDUAL HEAT IN of washing slag water.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, a kind of blast furnace slag quenching water is provided
Independent water intaking residual neat recovering system, which be not easy to plug heat exchange unit, failure rate is low, is easy to tie up
Shield, and enable to heat exchange unit Continuous Heat Transfer.
The present invention is to be achieved by the following technical programs: a kind of blast furnace slag quenching water is independently fetched water residual neat recovering system,
Including blast furnace, granulation tower and tank, the high temperature furnace slag that blast furnace generates enters washing slag water cooling of the granulation tower through recycling, high temperature
Washing slag water enter in tank, further include water intake conduit, water tank, water intaking water pump, heat exchange unit, pulp water outlet conduit and
Slag-washing-out pump, heat exchange unit are equipped with washing slag water water inlet and washing slag water water outlet, the water inlet and tank of water intake conduit
It is connected at close to liquid level, the water outlet of water intake conduit is connect with water tank, and water tank passes through first pipe and washing slag water water inlet
It is connected, water intaking water pump is located in first pipe, and the water inlet of washing slag water outlet conduit is connected to the lower part of tank, washing slag water
The water outlet of outlet conduit is connected with granulation tower, and slag-washing-out pump is located on washing slag water outlet conduit, the washing slag water of heat exchange unit
Water outlet is connect by second pipe with washing slag water outlet conduit.
According to the above technical scheme, it is preferable that second pipe and washing slag water outlet conduit junction form pulp water return water point,
Along washing slag water flow direction, pulp water return water point is located on front side of slag-washing-out pump.
According to the above technical scheme, it is preferable that second pipe is equipped with switch valve.
According to the above technical scheme, it is preferable that it is additionally provided on heat exchange unit and takes thermal medium inlet and take thermal medium outlet,
Refrigerant is taken thermal medium inlet to enter heat exchange unit and carries out heat exchange with washing slag water, it is heated after refrigerant from taking thermal medium to go out
Mouth outflow.
According to the above technical scheme, it is preferable that water tank is Siphon pot.
The beneficial effects of the present invention are: the water inlet of water intake conduit of the invention and tank be close to being connected at liquid level, with
The precipitating such as solid particle so that solid content is low in the pulp water on tank top, water quality is good, so that heat exchange unit extracts tank
The high temperature washing slag water on top, so that heat exchange unit is not easy to plug, failure rate is low, easy to maintain；The slag-washing-out pump when blast furnace slag flushing
Operation can converge with the cold water of washing slag water outlet conduit after the high temperature washing slag water heat exchange that water intaking water pump extracts and extract for slag-washing-out pump
Carry out flushing cinder；When blast furnace not flushing cinder, the bottom of tank is entered after the washing slag water heat exchange that water intaking water pump extracts, so that heat exchange is single
Member can continue to exchange heat.
Detailed description of the invention
Fig. 1 shows the structural schematic diagram of embodiment according to the present invention 1.
Fig. 2 shows the structural schematic diagrams of embodiment according to the present invention 2.
Fig. 3 shows a kind of structural schematic diagram of prior art.
In figure: 1, upper cold tower slag-washing-out pump；2, upper cold tower flushing cinder pipeline；3, cold tower stop valve；4, washing slag water bypasses；5, it changes
Hot cell；6, cold rinse bank；7, cooling tower；8, water circulating pump；9, it is granulated tower；10, waste heat switching valve；11, blast furnace；12, pulp water pond；
13, water intake conduit；14, water tank；15, water intaking water pump；16, washing slag water outlet conduit；17, slag-washing-out pump；18, first pipe；
19, second pipe；20, pulp water return water point；21, heat-exchanger pump；22, water supply pipeline；23, switch valve；24, drum filter；25,
Grain slag conveyer belt；A, washing slag water；B, refrigerant.
Specific embodiment
In order to make those skilled in the art more fully understand technical solution of the present invention, with reference to the accompanying drawing and most
The present invention is described in further detail for good embodiment.
Embodiment 1
As shown in figure 3, the process flow that the pulp water waste heat currently used for having pulp water cooling tower in flushing cinder system recycles is
Direct heating picking process system, specially using the upper cold tower slag-washing-out pump 1 of blast furnace slag flushing system as washing slag water A circulation power,
Cold tower stop valve 3 is installed on upper cold tower flushing cinder pipeline 2, washing slag water A enters heat exchange unit 5 by washing slag water bypass 4, through changing
Heat washing slag water A after cooling is directly entered cold rinse bank 6, and heat exchange unit 5 is in parallel with cooling tower 7, into the washing slag water A of cold rinse bank 6
It extracts through water circulating pump 8 to granulation tower 9；It is equipped with waste heat switching valve 10 in washing slag water bypass 4, passes through 10 He of waste heat switching valve
Cold tower stop valve 3 controls heat exchange process.But in practice, since other than grain slag, there are also more in pulp water pond 12
The foreign matters such as suspended matter, plastic bottle, textile fabric and stone, these foreign matters easily cause heat exchange unit 5 to block, so that heat exchange is single
Member 5 can not be run steadily in the long term, not only influence the operation of blast furnace slag flushing system, but also influence the UTILIZATION OF VESIDUAL HEAT IN of washing slag water A.
As shown in Figure 1, independently fetch water residual neat recovering system the present invention provides a kind of blast furnace slag quenching water, including blast furnace 11,
It is granulated tower 9 and tank, the tank in the present embodiment is the cold rinse bank 6 positioned at 7 lower part of cooling tower, is granulated tower 9 and pulp water
Pond 12 connects, and cooling tower 7 is connect with pulp water pond 12, and the high temperature furnace slag that blast furnace 11 generates enters granulation washing slag water A of the tower 9 through recycling
Cooling, the washing slag water A of high temperature enters in pulp water pond 12, and cold rinse bank 6 is located at the lower section of cooling tower 7, and washing slag water A passes through cooling tower 7
It further include that water intake conduit 13, water tank 14, water intaking water pump 15, at least one set of heat exchange unit 5, washing slag water go out into cold rinse bank 6
Waterpipe 16 and slag-washing-out pump 17, refrigerant channel of the heat exchange unit 5 including pulp water runner and with the heat exchange of pulp water runner, in order to
The probability that washing slag water A is blocked in pulp water runner is reduced, pulp water runner is preferably vertical straight channel, i.e. washing slag water A is in slag
The flow direction of water flow passage is flowed substantially in the vertical direction, and without any folding journey in pulp water runner, heat exchange unit 5 is equipped with and slag
The washing slag water water inlet and washing slag water water outlet of the inlet and outlet connection of water flow passage, the water inlet and cold rinse bank 6 of water intake conduit 13
It is connected at close to liquid level, therefore water intake conduit can extract impure lower washing slag water in cold rinse bank, water intake conduit 13 goes out
The mouth of a river is connect with water tank 14, and water tank 14 is connected by first pipe 18 with washing slag water water inlet, and water intaking water pump 15 is located at
In first pipe 18, the water inlet of washing slag water outlet conduit 16 is connected to the lower part of cold rinse bank 6, and washing slag water outlet conduit 16 goes out
The mouth of a river is connected with granulation tower 9, and slag-washing-out pump 17 is located on washing slag water outlet conduit 16, the washing slag water water outlet of heat exchange unit 5
It is connect by second pipe 19 with washing slag water outlet conduit 16.
According to above-described embodiment, it is preferable that second pipe 19 and 16 junction of washing slag water outlet conduit form pulp water return water
Point 20, along the flow direction washing slag water A, pulp water return water point 20 is located at the front side of slag-washing-out pump 17, when slag-washing-out pump 17 is run, by
It is located at the front side of slag-washing-out pump 17 in pulp water return water point 20, so negative pressure is formed at pulp water return water point 20, so that washing slag water goes out
Waterpipe 16 persistently extracts the washing slag water A in cold rinse bank 6 to slag-washing-out pump 17, can effectively prevent rushing by heat exchange unit 5
Pulp water A reversely flows back towards cold rinse bank 6 by washing slag water outlet conduit 16, prevents cooling washing slag water A and the flushing cinder in cold rinse bank 6 after heat exchange
Water A mixing, guarantees the water intaking temperature of water intake conduit 13, is conducive to the recycling of washing slag water A heat, increases economic efficiency.
According to above-described embodiment, it is preferable that further include heat-exchanger pump 21 and water supply pipeline 22, heat-exchanger pump 21 passes through upper hose
Washing slag water A in pulp water pond 12 is directly evacuated in cooling tower 7 by road 22, reduces the heat energy loss of high temperature washing slag water A.
Specific workflow is as follows:
Washing slag water A by being granulated tower 9 enters in pulp water pond 12, and heat-exchanger pump 21 will be in pulp water pond 12 by water supply pipeline 22
High temperature washing slag water A be directly evacuated in cooling tower 7, the solid particle in high temperature washing slag water A sinks to 6 bottom of cold rinse bank, due to taking
The water inlet of waterpipe 13 and cold rinse bank 6 are close to being connected at liquid level, therefore as solid particle etc. is heavy in washing slag water in cold rinse bank
It forms sediment, so that the solid content that water intake conduit 13 can continue to extract 6 top of cold rinse bank is low, high temperature washing slag water A that water quality is good to water storage
In tank 14, the washing slag water A in water tank 14 is evacuated to heat exchange unit 5 with water intaking water pump 15 and refrigerant B carries out heat exchange, when blast furnace 11
Slag-washing-out pump 17 is run when flushing cinder, and washing slag water A and 16 inner cold water of washing slag water outlet conduit through 5 heat exchange of heat exchange unit converge confession
Slag-washing-out pump 17 carries out flushing cinder, so that washing slag water A shuttling movement；When 11 not flushing cinder of blast furnace, the flushing cinder of the water intaking extraction of water pump 15
The bottom for entering cold rinse bank 6 after water A heat exchange by second pipe 19 and washing slag water outlet conduit 16, so that heat exchange unit 5
It can continue to exchange heat.
According to above-described embodiment, it is preferable that second pipe 19 is equipped with switch valve 23, passes through switch valve 23 and water intaking
The opening and closing of water pump 15 can be realized the opening and closing of heat exchange.
According to above-described embodiment, it is preferable that it is additionally provided on heat exchange unit 5 and takes thermal medium inlet and take thermal medium outlet,
Refrigerant B is taken thermal medium inlet to enter heat exchange unit 5 and carries out heat exchange with washing slag water A, it is heated after refrigerant B from taking hot Jie
Matter outlet outflow, the flow direction of refrigerant B is substantially contrary with washing slag water A, so as to further enhance heat exchange unit 5
Heat exchange efficiency.
According to above-described embodiment, it is preferable that water tank 14 is Siphon pot, therefore the high temperature washing slag water A energy on 6 top of cold rinse bank
In enough automatic extractions to Siphon pot, the energy is saved.
Embodiment 2
As shown in Fig. 2, independently fetch water residual neat recovering system the present invention provides a kind of blast furnace slag quenching water, including blast furnace 11,
It is granulated tower 9 and tank, the tank in the present embodiment is pulp water pond 12, and the washing slag water A flowed out from granulation tower passes through rotary drum
Filter 24 is fallen into pulp water pond 12, and the grain slag for removing impurity in drum filter is equipped in drum filter 24 and is transmitted
Band 25, drum filter and grain slag conveyer belt are the prior art, are not intended as the innovative point of this patent, further include intake pipe
Road 13, water tank 14, water intaking water pump 15, at least one set of heat exchange unit 5, washing slag water outlet conduit 16 and slag-washing-out pump 17, are changed
Hot cell 5 includes pulp water runner and the refrigerant channel with the heat exchange of pulp water runner, is sent out to reduce washing slag water A in pulp water runner
The probability of raw blocking, pulp water runner is preferably vertical straight channel, i.e. washing slag water A is in the flow direction of pulp water runner substantially along vertical
Direction flowing, without any folding journey in pulp water runner, heat exchange unit 5 is equipped with the washing slag water with the inlet and outlet connection of pulp water runner
Water inlet and washing slag water water outlet, the water inlet of water intake conduit 13 and pulp water pond are close to being connected at liquid level, therefore water intake conduit
Impure lower washing slag water in pulp water pond can be extracted, the water outlet of water intake conduit 13 is connect with water tank 14, water tank 14
It is connected by first pipe 18 with washing slag water water inlet, water intaking water pump 15 is located in first pipe 18, washing slag water outlet conduit
16 water inlet is connected to the lower part in pulp water pond 6, and the water outlet of pulp water pond outlet pipe 16 is connected with granulation tower 9, slag-washing-out pump
17 are located on pulp water pond outlet conduit 16, and the washing slag water water outlet of heat exchange unit 5 passes through second pipe 19 and washing slag water outlet pipe
Road 16 connects.
According to above-described embodiment, it is preferable that second pipe 19 and 16 junction of washing slag water outlet conduit form pulp water return water
Point 20, along the flow direction washing slag water A, pulp water return water point 20 is located at the front side of slag-washing-out pump 17, when slag-washing-out pump 17 is run, by
It is located at the front side of slag-washing-out pump 17 in pulp water return water point 20, so negative pressure is formed at pulp water return water point 20, so that pulp water pond goes out
Water pipe 16 persistently extracts the washing slag water A in pulp water pond 6 to slag-washing-out pump 17, can effectively prevent the flushing cinder by heat exchange unit 5
Water A reversely flows back towards pulp water pond 6 by pulp water pond outlet pipe 16, prevents the cooling washing slag water A and washing slag water A in pulp water pond 6 after heat exchange
Mixing guarantees the water intaking temperature of water intake conduit 13, is conducive to the recycling of washing slag water A heat, increases economic efficiency.
Specific workflow is as follows:
Washing slag water A by being granulated tower 9 enters in pulp water pond 12, in the high temperature washing slag water A of drum filter 24
Solid particle sinks to 6 bottom of pulp water pond, water inlet and the pulp water pond 12 due to water intake conduit 13 close to being connected at liquid level, with
The precipitating such as solid particle in washing slag water in pulp water pond, so that water intake conduit 13 can continue to extract consolidating for 12 top of pulp water pond and contain
It measures in high temperature washing slag water A to water tank 14 low, that water quality is good, the washing slag water A in water tank 14 is evacuated to heat exchange by water pump 15 of fetching water
Unit 5 and refrigerant B carry out heat exchange, and when 11 flushing cinder of blast furnace, slag-washing-out pump 17 is run, the washing slag water through 5 heat exchange of heat exchange unit
A and 16 inner cold water of pulp water pond outlet pipe, which converge, carries out flushing cinder for slag-washing-out pump 17, so that washing slag water A shuttling movement；When blast furnace 11
Not when flushing cinder, slag is entered by second pipe 19 and washing slag water outlet conduit 16 after the washing slag water A heat exchange that water intaking water pump 15 extracts
The bottom in pond 6, so that heat exchange unit 5 can continue to exchange heat.
According to above-described embodiment, it is preferable that second pipe 19 is equipped with switch valve 23, passes through switch valve 23 and water intaking
The opening and closing of water pump 15 can be realized the opening and closing of heat exchange.
According to above-described embodiment, it is preferable that it is additionally provided on heat exchange unit 5 and takes thermal medium inlet and take thermal medium outlet,
Refrigerant B is taken thermal medium inlet to enter heat exchange unit 5 and carries out heat exchange with washing slag water A, it is heated after refrigerant B from taking hot Jie
Matter outlet outflow, the flow direction of refrigerant B is substantially contrary with washing slag water A, so as to further enhance heat exchange unit 5
Heat exchange efficiency.
According to above-described embodiment, it is preferable that water tank 14 is Siphon pot, therefore the high temperature washing slag water A on 12 top of pulp water pond
It can extract automatically to Siphon pot, save the energy.
The beneficial effects of the present invention are: the water inlet of water intake conduit 13 of the invention and tank be close to being connected at liquid level,
As solid particle etc. precipitates, so that solid content is low in the pulp water on tank top, water quality is good, so that heat exchange unit 5 extracts storage
The high temperature washing slag water A on pond top, so that heat exchange unit 5 is not easy to plug, failure rate is low, easy to maintain；When 11 flushing cinder of blast furnace
Slag-washing-out pump 17 is run, and can be converged with 16 inner cold water of washing slag water outlet conduit after the high temperature washing slag water A heat exchange that water intaking water pump 15 extracts
It closes and carries out flushing cinder for slag-washing-out pump 17；When 11 not flushing cinder of blast furnace, enter water storage after the washing slag water A heat exchange that water intaking water pump 15 extracts
The bottom in pond enables heat exchange unit 5 to continue to exchange heat.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (5)
- The residual neat recovering system 1. a kind of blast furnace slag quenching water is independently fetched water, including blast furnace, granulation tower and tank, what blast furnace generated High temperature furnace slag enters washing slag water cooling of the granulation tower through recycling, and the washing slag water of high temperature enters in tank, which is characterized in that also wraps Water intake conduit, water tank, water intaking water pump, heat exchange unit, pulp water outlet conduit and slag-washing-out pump are included, is set on the heat exchange unit There are washing slag water water inlet and a washing slag water water outlet, the water inlet of the water intake conduit and tank are close to being connected at liquid level, institute The water outlet for stating water intake conduit is connect with water tank, and the water tank is connected by first pipe with washing slag water water inlet, institute It states water intaking water pump to be located in first pipe, the water inlet of the washing slag water outlet conduit is connected to the lower part of tank, the punching The water outlet of pulp water outlet conduit is connected with granulation tower, and the slag-washing-out pump is located on washing slag water outlet conduit, the heat exchange The washing slag water water outlet of unit is connect by second pipe with washing slag water outlet conduit.
- The residual neat recovering system 2. a kind of blast furnace slag quenching water according to claim 1 is independently fetched water, which is characterized in that described Two pipelines and washing slag water outlet conduit junction form pulp water return water point, along washing slag water flow direction, the pulp water return water point On front side of the slag-washing-out pump.
- The residual neat recovering system 3. a kind of blast furnace slag quenching water according to claim 2 is independently fetched water, which is characterized in that described Two pipelines are equipped with switch valve.
- The residual neat recovering system 4. a kind of blast furnace slag quenching water according to claim 3 is independently fetched water, which is characterized in that described to change Be additionally provided on hot cell and take thermal medium inlet and take thermal medium outlet, refrigerant taken thermal medium inlet enter heat exchange unit and with Washing slag water carries out heat exchange, it is heated after refrigerant from taking thermal medium outlet to flow out.
- The residual neat recovering system 5. a kind of blast furnace slag quenching water according to claim 4 is independently fetched water, which is characterized in that the storage Water pot is Siphon pot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910710552.4A CN110468242B (en) | 2019-08-02 | 2019-08-02 | Independent water taking waste heat recovery system for slag flushing water of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910710552.4A CN110468242B (en) | 2019-08-02 | 2019-08-02 | Independent water taking waste heat recovery system for slag flushing water of blast furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110468242A true CN110468242A (en) | 2019-11-19 |
| CN110468242B CN110468242B (en) | 2024-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910710552.4A Active CN110468242B (en) | 2019-08-02 | 2019-08-02 | Independent water taking waste heat recovery system for slag flushing water of blast furnace |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113293245A (en) * | 2021-05-19 | 2021-08-24 | 中钢集团鞍山热能研究院有限公司 | High-temperature slag waste heat recovery system and method |
| CN113430309A (en) * | 2021-06-30 | 2021-09-24 | 广东韶钢松山股份有限公司 | Slag flushing system and slag removing method |
| CN113430310A (en) * | 2021-07-02 | 2021-09-24 | 南京品会聚能科技有限公司 | Slag flushing water treatment system and method |
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| CN210796508U (en) * | 2019-08-02 | 2020-06-19 | 天津华赛尔传热设备有限公司 | Blast furnace slag flushing water independent water taking waste heat recovery system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113293245A (en) * | 2021-05-19 | 2021-08-24 | 中钢集团鞍山热能研究院有限公司 | High-temperature slag waste heat recovery system and method |
| CN113430309A (en) * | 2021-06-30 | 2021-09-24 | 广东韶钢松山股份有限公司 | Slag flushing system and slag removing method |
| CN113430310A (en) * | 2021-07-02 | 2021-09-24 | 南京品会聚能科技有限公司 | Slag flushing water treatment system and method |
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| CN110468242B (en) | 2024-03-29 |
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