CN209292374U - Energy-saving white-removing system for blast furnace slag granulation - Google Patents
Energy-saving white-removing system for blast furnace slag granulation Download PDFInfo
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- CN209292374U CN209292374U CN201822213755.6U CN201822213755U CN209292374U CN 209292374 U CN209292374 U CN 209292374U CN 201822213755 U CN201822213755 U CN 201822213755U CN 209292374 U CN209292374 U CN 209292374U
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- water
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- pipeline
- disappears
- filtering ponds
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- 238000005469 granulation Methods 0.000 title claims abstract description 37
- 230000003179 granulation Effects 0.000 title claims abstract description 37
- 239000002893 slag Substances 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 98
- 238000001914 filtration Methods 0.000 claims abstract description 78
- 239000007921 spray Substances 0.000 claims description 40
- 239000003818 cinder Substances 0.000 claims description 22
- 238000004134 energy conservation Methods 0.000 claims description 22
- 239000002002 slurry Substances 0.000 claims description 19
- 238000010926 purge Methods 0.000 claims description 8
- 239000000779 smoke Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 abstract description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052717 sulfur Inorganic materials 0.000 abstract description 2
- 239000011593 sulfur Substances 0.000 abstract description 2
- 125000004122 cyclic group Chemical group 0.000 abstract 1
- 238000000034 method Methods 0.000 description 12
- 230000009471 action Effects 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
Classifications
-
- 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
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- Water Treatment By Sorption (AREA)
Abstract
The utility model discloses an energy-conserving white system that disappears of blast furnace slag granulation, including granulation tower (4), high altitude chimney (1) and filtering ponds (9), steam conduit (2) are passed through on the upper portion of granulation tower (4) and are connected with high altitude chimney (1), and granulation tower (4) can be through slag-water mixture pipeline (6) to the interior row of filtering ponds (9) go into slag-water mixture, and high altitude chimney (1) can be through condensed water shower pipeline (5) to the interior row of filtering ponds (9) go into the comdenstion water shower water. The energy-saving white-removing system for blast furnace slag granulation effectively reduces the discharge of sulfur-containing steam in the filter tank and realizes the cyclic utilization of energy.
Description
Technical field
The utility model relates to metallurgy industries to smelt iron field, and particularly a kind of granulated energy conservation of blast furnace cinder disappears white system
System.
Background technique
It can be generated when blast furnace process high-temperature liquid state slag (1350 DEG C -1500 DEG C), domestic annual 700000000 tons of molten iron of production produces
Raw 2.5 hundred million tons of high-temperature liquid state slag.Precipitating filtration method (often claiming bottom filter method) grain slag technique is generallyd use both at home and abroad to carry out slag
Granulated processed.Hydraulic discharged slag is carried out before State of Blast Furnace, after being smashed slag with water quenching, becomes slag-water slurry (often claiming grain slag), water
Slag enters filtering ponds through sluice, and liquid water is recycled after the filter layer filtering in filtering ponds, and solid-state is left in filtering ponds
Then slag particle grabs slag particle by transporter grab crane, entrucking outward transport.
Grain slag technique can generate a large amount of steam (about 60 DEG C -100 DEG C) during carrying out granulated processed to slag, and grain slag steams
Vapour has corrosivity, surrounding enviroment are polluted in dissemination process, corrodes the equipment of surrounding, simultaneously because filtering ponds away from blast furnace away from
It is close, therefore the steam distributed can also cause certain corrosion to blast-furnace equipment.
Increasingly severeer with Environmental Protection in China situation, the disappear demand of white technology of the steam of grain slag technique is got over by iron and steel enterprise
It is strong to have.The correlative study of many years has been carried out both at home and abroad, it is desirable to eliminate filtering ponds steam, it is white to realize that steam disappears.
Patent CN107815514A, March 20 2018 publication date, disclose it is a kind of " washing slag water Steam Recovery with disappear
The system and recovery method of white haze ", which realizes Steam Recovery by the way of mist cooling first, then utilizes hot-blast stove
Flue gas heating steam prevents white cigarette.Discharge of steam can be effectively reduced using the method for the patent, but a large amount of steam heats
It can be wasted, not be fully used.
Although the whitening method that disappears of blast furnace grain slag system steam has been provided in the prior art, but thermal energy is without sufficiently benefit
With, it is necessary to it studies the granulated energy conservation of new blast furnace cinder and disappears white device, the dirt of environment caused by steam of flushing cinder can be effectively reduced
Dye, and it is able to achieve recycling for the energy.
Utility model content
In order to improve the white efficiency that disappears of blast furnace grain slag system filtering ponds steam.The utility model provides a kind of blast furnace cinder
Granulated energy conservation disappears white system, the granulated energy conservation of the blast furnace cinder disappear white system effectively reduce filtering ponds sulfur-bearing steam discharge,
Realize recycling for the energy.
The utility model solves that technical application used by its technical problem is novel to be: a kind of granulated energy conservation of blast furnace cinder
Disappear white system, including granulation tower, high-altitude chimney and filtering ponds, and the top for being granulated tower is connect by jet chimney with high-altitude chimney,
Granulation tower can be discharged into slag-water slurry by slag-water slurry pipeline into filtering ponds, and high-altitude chimney can be sprayed by condensed water
Water drenching pipeline is discharged into condensed water shower water into filtering ponds.
Granulation tower, high-altitude chimney and filtering ponds are triangularly arranged, and filtering ponds contain the first filtering point pond being set side by side
Divide pond with the second filtering.
One end of slag-water slurry pipeline is connect with one end of condensed water shower water pipeline, slag-water slurry pipeline and condensation
Pond and the second mistake are divided by the first filtering ponds pipeline and the second filtering ponds pipeline and the first filtering in the junction of water spray waterpipe
A filter point pond connects one to one.
First filtering ponds pipeline is equipped with the first valve, and the second filtering ponds pipeline is equipped with the second valve, the first valve
Working condition is opposite with the working condition of the second valve.
It is granulated in tower and is equipped with granulator, granulator is located at the lower section of the high-temperature slag entrance of granulation tower, is granulated the bottom of tower
It is connected with conveying water inlet pipe road, the water outlet in the conveying water inlet pipe road is located at the lower section of granulator.
Heat exchanger is equipped in the top of granulator, heat exchanger is set on jet chimney between granulator and jet chimney
There is air-introduced machine.
Spray equipment, demister and back purge system are disposed in the chimney of high-altitude from bottom to top, jet chimney is located at
With the lower section of spray equipment.
Spray equipment can will be granulated steam non-condensing in tower and become condensed water and fall into smoke aloft together with shower water
The bottom of chimney.
Demister can eliminate non-condensing steam and small water droplet, and back purge system can periodically recoil to demister
It washes.
Spray equipment contains circumferential uniformly alternately arranged long spray gun and short spray gun, long spray gun and the short spray along high-altitude chimney
Multiple high-pressure nozzles have been evenly arranged on rifle.
The beneficial effects of the utility model are:
1, the utility model proposes the white measure that disappears sprayed afterwards that first exchanges heat, the white effect that disappears is good, can effectively reduce environment
Pollution.
2, the utility model can make full use of the steam thermal energy during slag granulating, reduce energy waste.
3, the utility model proposes energy conservation disappear that white system structure is simple, equipment dependability is high.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide a further understanding of the present invention, this is practical
Novel illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.
Fig. 1 is that the granulated energy conservation of blast furnace cinder disappears the top view of white system.
Fig. 2 is the side view for being granulated tower.
Fig. 3 is the side view of blast furnace stack.
Fig. 4 is high-pressure spray gun and spray head deployment scenarios top view.
1, high-altitude chimney；2, jet chimney；3, air-introduced machine；4, it is granulated tower；5, condensed water shower water pipeline；6, pulp water mixes
Conduit；71, the first valve；72, the second valve；81, the first filtering ponds pipeline；82, the second filtering ponds pipeline；9, filtering ponds；
91, the first filtering divides pond；92, the second filtering divides pond；10, heat exchanger；11, granulator；12, back purge system；13, demister；
14, spray equipment；15, long spray gun；16, short spray gun；17, high-pressure nozzle.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
A kind of granulated energy conservation of blast furnace cinder disappears white system, including granulation tower 4, high-altitude chimney 1 and filtering ponds 9, is granulated tower 4
Top connect with high-altitude chimney 1 by jet chimney 2, being granulated tower 4 can be by slag-water slurry pipeline 6 into filtering ponds 9
It is discharged into slag-water slurry, high-altitude chimney 1 can be discharged into condensed water shower water into filtering ponds 9 by condensed water shower water pipeline 5
(condensed water and shower water), as shown in Figures 1 to 4.
In the present embodiment, it overlooks the granulated energy conservation of the blast furnace cinder to disappear white system, as shown in Figure 1, granulation tower 4, high
Empty chimney 1 and filtering ponds 9 are triangularly arranged.Filtering ponds 9 contain the first filtering point pond 91 being set side by side and the second filtering point
Pond 92.First filtering point pond 91 and the second filtering divide mutually indepedent between pond 92.
In the present embodiment, one end of slag-water slurry pipeline 6 is connect with one end of condensed water shower water pipeline 5, pulp water
The junction of mixture conduit 6 and condensed water shower water pipeline 5 passes through the first filtering ponds pipeline 81 and the second filtering ponds pipeline 82
It connects one to one with the first filtering point pond 91 and the second filtering point pond 92, as shown in Figure 1.The slag-water slurry being granulated in tower 4
It can be discharged into the first filtering point pond 91 or the second filtering point pond 92, the condensed water shower water in high-altitude chimney 1 can be discharged into first
Filtering point pond 91 or the second filtering divide pond 92.
In the present embodiment, the first filtering ponds pipeline 81 is equipped with the first valve 71, and the second filtering ponds pipeline 82 is equipped with
Second valve 72, the working condition of the first valve 71 are opposite with the working condition of the second valve 72.I.e. in general, when the first valve 71
When to open, the second valve 72 is closed；When the first valve 71 is to close, the second valve 72 is opened.
Specifically, the slag-water slurry pipeline 6 drawn from granulation tower 4 and the condensed water shower water drawn from high-altitude chimney 1
The intersection of pipeline 5 is converged, and draws two filtering ponds pipelines (the first filtering ponds pipeline 81 and the second filtering ponds pipeline 82) from point
Respectively enter two filtering ponds (the first filtering point pond 91 or the second filtering point pond 92).All pacify on into the pipeline of two filtering ponds
Valve is filled, when needing using the first filtering point pond 91, closes the second valve 72 on the second filtering ponds pipeline 82, vice versa.
If high-altitude chimney 1 has enough height, it is capable of forming enough negative pressure and draws steam non-condensing in granulation tower 4, then may be used
To be not provided with air-introduced machine 3.
In the present embodiment, it is equipped with granulator 11 in granulation tower 4, granulator 11 is located at the high-temperature slag entrance of granulation tower 4
Lower section, the bottom of granulation tower 4 is connected with conveying water inlet pipe road, and the water outlet in the conveying water inlet pipe road is located at granulator 11
Lower section.High-temperature slag completes granulation under the action of a large amount of high speed granulation water, and slag-water slurry falls into the bottom of granulation tower 4.
Be granulated 4 bottom of tower introduce conveying water, under the action of convey water, slag-water slurry enter filtering ponds (first filter point pond 91 or
Second filtering divides pond 92).
In the present embodiment, heat exchanger 10 is equipped in the top of granulator 11, heat exchanger 10 is located at granulator 11 and steam
Between pipeline 2, jet chimney 2 is equipped with air-introduced machine 3.Heat exchanger 10 is set at the top of granulation tower 4 in the top of granulator 11,
It is granulated 4 top-side of tower setting jet chimney 2 and air-introduced machine 3.Under the action of air-introduced machine 3, generated during slag granulating
Steam is in granulation 4 moved upward inside of tower, and when steam passes through heat exchanger 10, the normal-temperature water for being introduced into heat exchanger 10 absorbs big calorimetric
Hot water can be become, a large amount of steam are condensed into water droplet in heat transfer process and fall into granulation 4 bottom of tower.Non-condensing steam from granulation tower
The jet chimney 2 of 4 top-sides enters high-altitude chimney 1, as shown in Figure 2.
In the present embodiment, spray equipment 14, demister 13 and backwash are disposed in high-altitude chimney 1 from bottom to top
Device 12, jet chimney 2 are located at the lower section with spray equipment 14.Spray equipment 14 can contain one or more layers, spray equipment
14, which can will be granulated steam non-condensing in tower 4, becomes condensed water and falls into the bottom of high-altitude chimney 1 together with shower water.Foam removal
Device 13 can eliminate non-condensing steam and small water droplet, and back purge system 12 can periodically backwash demister 13.
In the present embodiment, spray equipment 14 contains circumferential uniformly alternately arranged long 15 He of spray gun along high-altitude chimney 1
Short spray gun 16 has been evenly arranged multiple high-pressure nozzles 17 on long spray gun 15 and short spray gun 16.Long spray gun 15 and short spray gun 16 are in height
On empty 1 inside sustained height of chimney.According to process requirements, the long spray gun 15 of many levels and short can be arranged on different height
Spray gun 16 and its subsidiary high-pressure nozzle 17.Shower water forms atomization shape after the ejection of high-pressure nozzle 17 inside the chimney of high-altitude
State, the shower water of atomization are uniformly covered with high-altitude chimney inner space.
After non-condensing steam enters high-altitude chimney 1, become under the action of the atomizing spray water that spray equipment 14 sprays
Condensed water, condensed water fall into chimney 1 bottom in high-altitude together with shower water and enter filtering ponds along pipeline.The setting of demister 13 is spraying
14 top of device, eliminates non-condensing steam and small water droplet；Back purge system 12 periodically backwashes demister 13, avoids
Demister 13 is blocked after being used for a long time.
The granulated energy conservation of the blast furnace cinder is described below to disappear the course of work of white system.
High-temperature slag completes granulation under the action of a large amount of high speed granulation water, and slag-water slurry falls into granulation 4 bottom of tower grain
Change tower bottom and introduce conveying water, under the action of conveying water, slag-water slurry enters (the first filtering point pond 91 or the of filtering ponds 9
Two filterings divide pond 92).Non-condensing steam introduces high-altitude by air-introduced machine from the jet chimney of granulation top of tower side in granulation tower 4
Chimney 1.
Being granulated steam non-condensing in tower becomes condensed water and shower water together under the action of the chimney spray equipment of high-altitude
Fall into high-altitude chimney bottom.Demister is arranged above spray equipment, eliminates non-condensing steam and small water droplet.Back purge system
It is arranged above demister, periodically demister is backwashed.The slag-water slurry pipeline drawn from granulation tower with from high-altitude
The condensed water shower water pipeline monitor that chimney is drawn converges, and draws two filtering ponds pipelines from point and respectively enters two filterings
Pond.
The above, only specific embodiment of the utility model cannot limit the range that utility model is implemented, institute with it
With the displacement of its equivalent assemblies, or according to equivalent variations made by the utility model patent protection scope and modification, should all still fall within
The scope that this patent is covered.In addition, between technical characteristic and technical characteristic in the utility model, technical characteristic and technical application
Between novel, technical application it is novel it is novel with technical application between use can be freely combined.
Claims (10)
- The white system 1. a kind of granulated energy conservation of blast furnace cinder disappears, which is characterized in that the granulated energy conservation of blast furnace cinder disappears white system System includes granulation tower (4), high-altitude chimney (1) and filtering ponds (9), and the top of granulation tower (4) passes through jet chimney (2) and smoke aloft Chimney (1) connection, granulation tower (4) can be discharged into slag-water slurry, high-altitude into filtering ponds (9) by slag-water slurry pipeline (6) Chimney (1) can be discharged into condensed water shower water into filtering ponds (9) by condensed water shower water pipeline (5).
- The white system 2. the granulated energy conservation of blast furnace cinder according to claim 1 disappears, which is characterized in that granulation tower (4), high-altitude Chimney (1) and filtering ponds (9) are triangularly arranged, and filtering ponds (9) contain the first filtering point pond (91) and second being set side by side Filtering divides pond (92).
- The white system 3. the granulated energy conservation of blast furnace cinder according to claim 2 disappears, which is characterized in that slag-water slurry pipeline (6) one end is connect with one end of condensed water shower water pipeline (5), slag-water slurry pipeline (6) and condensed water shower water pipeline (5) pond (91) and second are divided with the first filtering by the first filtering ponds pipeline (81) and the second filtering ponds pipeline (82) in junction Filtering point pond (92) connects one to one.
- The white system 4. the granulated energy conservation of blast furnace cinder according to claim 1 disappears, which is characterized in that the first filtering ponds pipeline (81) the first valve (71) are equipped with, the second filtering ponds pipeline (82) is equipped with the second valve (72), the work of the first valve (71) It is opposite with the working condition of the second valve (72) to make state.
- The white system 5. the granulated energy conservation of blast furnace cinder according to claim 1 disappears, which is characterized in that set in granulation tower (4) Have granulator (11), granulator (11) is located at the lower section of the high-temperature slag entrance of granulation tower (4), the bottom connection of granulation tower (4) There is conveying water inlet pipe road, the water outlet in the conveying water inlet pipe road is located at the lower section of granulator (11).
- The white system 6. the granulated energy conservation of blast furnace cinder according to claim 5 disappears, which is characterized in that granulator (11) it is upper Heat exchanger (10) are equipped in portion, heat exchanger (10) is located between granulator (11) and jet chimney (2), and jet chimney is set on (2) There are air-introduced machine (3).
- The white system 7. the granulated energy conservation of blast furnace cinder according to claim 1 disappears, which is characterized in that in high-altitude chimney (1) It is disposed with spray equipment (14), demister (13) and back purge system (12) from bottom to top, jet chimney (2) is located at and spray The lower section of shower device (14).
- The white system 8. the granulated energy conservation of blast furnace cinder according to claim 7 disappears, which is characterized in that spray equipment (14) energy Steam non-condensing in tower (4) will be enough granulated to become condensed water and fall into the bottom of high-altitude chimney (1) together with shower water.
- The white system 9. the granulated energy conservation of blast furnace cinder according to claim 8 disappears, which is characterized in that demister (13) can Non-condensing steam and small water droplet are eliminated, back purge system (12) can periodically backwash demister (13).
- The white system 10. the granulated energy conservation of blast furnace cinder according to claim 7 disappears, which is characterized in that spray equipment (14) Contain circumferential uniformly alternately arranged long spray gun (15) and short spray gun (16), long spray gun (15) and the short spray along high-altitude chimney (1) Multiple high-pressure nozzles (17) have been evenly arranged on rifle (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822213755.6U CN209292374U (en) | 2018-12-27 | 2018-12-27 | Energy-saving white-removing system for blast furnace slag granulation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822213755.6U CN209292374U (en) | 2018-12-27 | 2018-12-27 | Energy-saving white-removing system for blast furnace slag granulation |
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| CN209292374U true CN209292374U (en) | 2019-08-23 |
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ID=67649144
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| CN201822213755.6U Active CN209292374U (en) | 2018-12-27 | 2018-12-27 | Energy-saving white-removing system for blast furnace slag granulation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109457069A (en) * | 2018-12-27 | 2019-03-12 | 中冶京诚工程技术有限公司 | Energy-saving white-removing system for blast furnace slag granulation |
| CN110975499A (en) * | 2019-12-25 | 2020-04-10 | 中冶京诚工程技术有限公司 | Environment-friendly white-removing device for blast furnace granulated slag |
-
2018
- 2018-12-27 CN CN201822213755.6U patent/CN209292374U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109457069A (en) * | 2018-12-27 | 2019-03-12 | 中冶京诚工程技术有限公司 | Energy-saving white-removing system for blast furnace slag granulation |
| CN109457069B (en) * | 2018-12-27 | 2024-03-22 | 中冶京诚工程技术有限公司 | Energy-saving and white-eliminating system for blast furnace slag granulation |
| CN110975499A (en) * | 2019-12-25 | 2020-04-10 | 中冶京诚工程技术有限公司 | Environment-friendly white-removing device for blast furnace granulated slag |
| CN110975499B (en) * | 2019-12-25 | 2024-02-02 | 中冶京诚工程技术有限公司 | Environment-friendly white removing device for granulated slag of blast furnace |
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