CN109457069B - Energy-saving and white-eliminating system for blast furnace slag granulation - Google Patents
Energy-saving and white-eliminating system for blast furnace slag granulation Download PDFInfo
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- CN109457069B CN109457069B CN201811610066.7A CN201811610066A CN109457069B CN 109457069 B CN109457069 B CN 109457069B CN 201811610066 A CN201811610066 A CN 201811610066A CN 109457069 B CN109457069 B CN 109457069B
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- 239000002893 slag Substances 0.000 title claims abstract description 48
- 238000005469 granulation Methods 0.000 title claims abstract description 21
- 230000003179 granulation Effects 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 96
- 239000007921 spray Substances 0.000 claims abstract description 40
- 239000000203 mixture Substances 0.000 claims abstract description 23
- 230000002087 whitening effect Effects 0.000 claims abstract description 20
- 238000001914 filtration Methods 0.000 claims description 40
- 238000005507 spraying Methods 0.000 claims description 20
- 238000011010 flushing procedure Methods 0.000 claims description 12
- 239000006260 foam Substances 0.000 claims description 7
- 238000011001 backwashing Methods 0.000 claims description 3
- 238000004064 recycling Methods 0.000 abstract description 5
- 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
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 9
- 230000009471 action Effects 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change 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
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 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
- C21B3/08—Cooling slag
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
-
- 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
-
- 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
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Manufacture Of Iron (AREA)
Abstract
The invention discloses an energy-saving and white-eliminating system for blast furnace slag granulation, which comprises a granulating tower (4), a high-altitude chimney (1) and a filter tank (9), wherein the upper part of the granulating tower (4) is connected with the high-altitude chimney (1) through a steam pipeline (2), the granulating tower (4) can discharge a slag-water mixture into the filter tank (9) through a slag-water mixture pipeline (6), and the high-altitude chimney (1) can discharge condensed water spray water into the filter tank (9) through a condensed water spray water pipeline (5). The energy-saving and whitening system for granulating the blast furnace slag effectively reduces the emission of sulfur-containing steam in the filter tank and realizes the recycling of energy sources.
Description
Technical Field
The invention relates to the field of iron making in the metallurgical industry, in particular to an energy-saving and white-eliminating system for granulating blast furnace slag.
Background
High-temperature liquid slag (1350 ℃ -1500 ℃) is generated during blast furnace smelting, 7 hundred million tons of molten iron is produced annually in China, and 2.5 hundred million tons of high-temperature liquid slag are generated. Slag is usually granulated by a sediment filtration (commonly called bottom filtration) water slag process at home and abroad. The hydraulic slag flushing is carried out in front of the blast furnace, the slag is crushed by water quenching, then the slag becomes a slag-water mixture (commonly called water slag), the water slag enters a filter tank through a slag flushing ditch, the liquid water is filtered by a filter layer in the filter tank and recycled, solid slag particles are left in the filter tank, and then the slag particles are grabbed by a bridge grab crane and are loaded and transported outside.
The slag process produces a large amount of steam (about 60-100 ℃) in the granulating process of slag, the slag steam is corrosive, the surrounding environment is polluted in the dispersing process, surrounding equipment is corroded, and meanwhile, the dispersing steam can cause certain corrosion to the blast furnace equipment due to the fact that the filter tank is very close to the blast furnace.
With the increasing severity of environmental protection in China, the more intense the requirements of iron and steel enterprises on steam whitening technology of water slag technology. Related researches have been carried out for many years at home and abroad, and the aim of eliminating the steam in the filter tank is to realize the steam whitening.
Patent CN107815514A, publication date 2018 3 month 20, discloses a system and a recovery method for recycling slag flushing water vapor and eliminating white fog, wherein the patent firstly adopts a spray cooling mode to realize vapor recycling, and then utilizes flue gas of a hot blast stove to heat vapor to prevent white smoke. The method of the patent can effectively reduce the steam emission, but a large amount of steam heat energy is wasted and is not fully utilized.
Although the prior art provides a method for whitening steam of a blast furnace slag system, heat energy is not fully utilized, and a new energy-saving and whitening device for granulating blast furnace slag is necessary to be researched, so that the environmental pollution caused by slag flushing steam can be effectively reduced, and the recycling of energy can be realized.
Disclosure of Invention
In order to improve the whitening efficiency of the steam in the filtering tank of the blast furnace granulated slag system. The invention provides an energy-saving and whitening system for granulating blast furnace slag, which effectively reduces the emission of sulfur-containing steam in a filter tank and realizes the recycling of energy sources.
The invention solves the technical problems that: the energy-saving and white-eliminating system for blast furnace slag granulation comprises a granulating tower, a high-altitude chimney and a filter tank, wherein the upper part of the granulating tower is connected with the high-altitude chimney through a steam pipeline, the granulating tower can discharge slag-water mixture into the filter tank through a slag-water mixture pipeline, and the high-altitude chimney can discharge condensed water spray water into the filter tank through a condensed water spray pipeline.
The granulating tower, the high-altitude chimney and the filter tank are arranged in a triangle, and the filter tank comprises a first filter sub-tank and a second filter sub-tank which are arranged in parallel.
One end of the slag-water mixture pipeline is connected with one end of the condensed water spraying pipeline, and the joint of the slag-water mixture pipeline and the condensed water spraying pipeline is connected with the first filtering sub-tank and the second filtering sub-tank in a one-to-one correspondence manner through the first filtering tank pipeline and the second filtering tank pipeline.
The first filter tank pipeline is provided with a first valve, the second filter tank pipeline is provided with a second valve, and the working state of the first valve is opposite to that of the second valve.
The granulating tower is internally provided with a granulator, the granulator is positioned below a high-temperature slag inlet of the granulating tower, the bottom of the granulating tower is connected with a conveying water input pipeline, and a water outlet of the conveying water input pipeline is positioned below the granulator.
The upper part of the granulator is internally provided with a heat exchanger, the heat exchanger is positioned between the granulator and a steam pipeline, and the steam pipeline is provided with an induced draft fan.
The high-altitude chimney is internally provided with a spray device, a foam remover and a back flushing device from bottom to top in sequence, and the steam pipeline is positioned below the spray device.
The spraying device can change the vapor which is not condensed in the granulating tower into condensed water and fall into the bottom of the high-altitude chimney together with the spray water.
The demister can eliminate uncondensed steam and small water drops, and the back flushing device can regularly back flush the demister.
The spraying device comprises long spray guns and short spray guns which are uniformly and alternately arranged along the circumferential direction of the high-altitude chimney, and a plurality of high-pressure spray heads are uniformly arranged on the long spray guns and the short spray guns.
The beneficial effects of the invention are as follows:
1. the invention provides a whitening measure of firstly exchanging heat and then spraying, has good whitening effect and can effectively reduce environmental pollution.
2. The invention can fully utilize the steam heat energy in the slag granulating process, and reduce the energy waste.
3. The energy-saving and whitening system provided by the invention has the advantages of simple structure and high equipment reliability.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
Fig. 1 is a top view of an energy-saving and whitening system for blast furnace slag granulation.
Fig. 2 is a side view of the granulation tower.
Fig. 3 is a side view of a blast furnace stack.
Fig. 4 is a top view of the high pressure spray gun and spray head arrangement.
1. A high-altitude chimney; 2. a steam pipe; 3. an induced draft fan; 4. a granulating tower; 5. condensed water spraying water pipeline; 6. a slag-water mixture pipeline; 71. a first valve; 72. a second valve; 81. a first filtration tank conduit; 82. a second filter tank conduit; 9. a filtering tank; 91. a first filtering sub-tank; 92. a second filtering sub-tank; 10. a heat exchanger; 11. a granulator; 12. a back flushing device; 13. a demister; 14. a spraying device; 15. a long spray gun; 16. a short lance; 17. high pressure spray head.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
The energy-saving and white-eliminating system for blast furnace slag granulation comprises a granulating tower 4, an overhead chimney 1 and a filter tank 9, wherein the upper part of the granulating tower 4 is connected with the overhead chimney 1 through a steam pipeline 2, the granulating tower 4 can discharge slag-water mixture into the filter tank 9 through a slag-water mixture pipeline 6, and the overhead chimney 1 can discharge condensed water spray water (condensed water and spray water) into the filter tank 9 through a condensed water spray pipeline 5, as shown in figures 1 to 4.
In this embodiment, the energy-saving and whitening system for granulating blast furnace slag is arranged in a triangular shape in a top view, as shown in fig. 1, with a granulating tower 4, an overhead chimney 1 and a filtering tank 9. The filter tank 9 includes a first filter sub-tank 91 and a second filter sub-tank 92 arranged in parallel. The first filtering sub-tank 91 and the second filtering sub-tank 92 are independent from each other.
In this embodiment, one end of the slag water mixture pipe 6 is connected with one end of the condensed water spray pipe 5, and the connection between the slag water mixture pipe 6 and the condensed water spray pipe 5 is connected with the first filtering sub-tank 91 and the second filtering sub-tank 92 in a one-to-one correspondence manner through the first filtering sub-tank pipe 81 and the second filtering sub-tank pipe 82, as shown in fig. 1. The slag-water mixture in the granulating tower 4 may be discharged into the first filtering sub-tank 91 or the second filtering sub-tank 92, and the condensed water spray water in the overhead chimney 1 may be discharged into the first filtering sub-tank 91 or the second filtering sub-tank 92.
In this embodiment, the first filter tank pipe 81 is provided with a first valve 71, and the second filter tank pipe 82 is provided with a second valve 72, and the operation state of the first valve 71 is opposite to the operation state of the second valve 72. That is, normally, when the first valve 71 is open, the second valve 72 is closed; when the first valve 71 is closed, the second valve 72 is opened.
Specifically, the slag-water mixture pipe 6 led out from the granulating tower 4 is intersected and converged with the condensed water shower pipe 5 led out from the overhead chimney 1, and two filtering tank pipes (a first filtering tank pipe 81 and a second filtering tank pipe 82) are led out from the convergence point and respectively enter two filtering tanks (a first filtering sub-tank 91 or a second filtering sub-tank 92). Valves are installed on the pipes into both tanks and when the first filter sub-tank 91 is required, the second valve 72 on the second filter tank pipe 82 is closed and vice versa. If the high-altitude chimney 1 has a sufficient height to be able to form a sufficient negative pressure to lead out uncondensed steam in the granulation tower 4, the induced draft fan 3 may not be provided.
In the present embodiment, the granulator 11 is provided in the granulation tower 4, the granulator 11 is located below the high-temperature slag inlet of the granulation tower 4, the bottom of the granulation tower 4 is connected with a water conveying input pipeline, and the water outlet of the water conveying input pipeline is located below the granulator 11. The high-temperature slag completes granulation under the action of a large amount of high-speed granulating water, and the slag-water mixture falls into the bottom of the granulating tower 4. The bottom of the granulation tower 4 is introduced with conveying water, and the slag-water mixture enters a filter tank (a first filter sub tank 91 or a second filter sub tank 92) under the action of the conveying water.
In the present embodiment, a heat exchanger 10 is provided in the upper portion of the granulator 11, the heat exchanger 10 is located between the granulator 11 and the steam pipe 2, and the steam pipe 2 is provided with an induced draft fan 3. A heat exchanger 10 is arranged above the granulator 11 and close to the top of the granulating tower 4, and a steam pipeline 2 and a draught fan 3 are arranged on the side surface of the top of the granulating tower 4. Under the action of the induced draft fan 3, steam generated in the slag granulating process moves upwards in the granulating tower 4, and when the steam passes through the heat exchanger 10, the normal-temperature water introduced into the heat exchanger 10 absorbs a large amount of heat energy to become hot water, and a large amount of steam is condensed into water drops falling into the bottom of the granulating tower 4 in the heat exchange process. The uncondensed steam enters the overhead chimney 1 from the steam pipe 2 on the top side of the granulation tower 4 as shown in fig. 2.
In the embodiment, a spraying device 14, a foam remover 13 and a back flushing device 12 are sequentially arranged in the high-altitude chimney 1 from bottom to top, and the steam pipeline 2 is positioned below the spraying device 14. The spraying device 14 may comprise one or more layers, and the spraying device 14 is capable of changing the uncondensed steam in the granulating tower 4 into condensed water and falling into the bottom of the high-altitude chimney 1 together with the shower water. The demister 13 can remove uncondensed steam and small water drops, and the backwashing device 12 can regularly backwash the demister 13.
In the present embodiment, the shower device 14 includes long lances 15 and short lances 16 which are alternately arranged uniformly in the circumferential direction of the high-altitude chimney 1, and a plurality of high-pressure shower heads 17 are uniformly arranged on the long lances 15 and the short lances 16. The long lance 15 and the short lance 16 are at the same level inside the high-altitude chimney 1. Depending on the process requirements, several levels of long 15 and short 16 lances and their accompanying high pressure spray heads 17 may be arranged at different heights. Spray water forms an atomization state in the high-altitude chimney after being sprayed out from the high-pressure spray head 17, and the atomized spray water is uniformly distributed in the inner space of the high-altitude chimney.
After entering the high-altitude chimney 1, the uncondensed steam becomes condensed water under the action of atomized spray water sprayed by the spraying device 14, and the condensed water and the spray water fall into the bottom of the high-altitude chimney 1 and enter the filtering tank along a pipeline. The demister 13 is arranged above the spraying device 14 and used for eliminating uncondensed steam and small water drops; the back flushing device 12 regularly back flushes the foam remover 13, so that the foam remover 13 is prevented from being blocked after long-term use.
The working process of the energy-saving and whitening system for granulating blast furnace slag is described below.
The high-temperature slag is granulated under the action of a large amount of high-speed granulating water, the slag-water mixture falls into the bottom of the granulating tower 4, conveying water is introduced into the bottom of the granulating tower, and under the action of the conveying water, the slag-water mixture enters the filter tank 9 (the first filter sub tank 91 or the second filter sub tank 92). The uncondensed steam in the granulating tower 4 is introduced into the high-altitude chimney 1 from a steam pipeline at the top side of the granulating tower by an induced draft fan.
The uncondensed steam in the granulating tower becomes condensed water under the action of the high-altitude chimney spraying device, and falls into the bottom of the high-altitude chimney together with the spraying water. The demister is arranged above the spraying device and used for eliminating uncondensed steam and small water drops. The back flushing device is arranged above the foam remover and regularly back flushing the foam remover. The slag-water mixture pipeline led out from the granulating tower is intersected and converged with the condensed water spray water pipeline led out from the high-altitude chimney, and two filtering tank pipelines are led out from the convergence point and respectively enter the two filtering tanks.
The foregoing description of the embodiments of the invention is not intended to limit the scope of the invention, so that the substitution of equivalent elements or equivalent variations and modifications within the scope of the invention shall fall within the scope of the patent. In addition, the technical features and the technical features, the technical features and the technical invention can be freely combined for use.
Claims (7)
1. The energy-saving and whitening system for granulating blast furnace slag is characterized by comprising a granulating tower (4), a high-altitude chimney (1) and a filtering tank (9), wherein the upper part of the granulating tower (4) is connected with the high-altitude chimney (1) through a steam pipeline (2), the granulating tower (4) can discharge a slag-water mixture into the filtering tank (9) through a slag-water mixture pipeline (6), and the high-altitude chimney (1) can discharge condensed water spray water into the filtering tank (9) through a condensed water spray water pipeline (5);
the granulating tower (4), the high-altitude chimney (1) and the filter tank (9) are arranged in a triangle;
a granulator (11) is arranged in the granulating tower (4), the granulator (11) is positioned below a high-temperature slag inlet of the granulating tower (4), the bottom of the granulating tower (4) is connected with a conveying water input pipeline, and a water outlet of the conveying water input pipeline is positioned below the granulator (11);
a heat exchanger (10) is arranged in the upper part of the granulator (11), the heat exchanger (10) is positioned between the granulator (11) and the steam pipeline (2), and an induced draft fan (3) is arranged on the steam pipeline (2);
a spraying device (14), a foam remover (13) and a back flushing device (12) are sequentially arranged in the high-altitude chimney (1) from bottom to top, and the steam pipeline (2) is positioned below the spraying device (14).
2. The energy-saving and whitening system for blast furnace slag granulation according to claim 1, wherein the filter tank (9) comprises a first filter sub-tank (91) and a second filter sub-tank (92) arranged in parallel.
3. The energy-saving and whitening system for blast furnace slag granulation according to claim 2, wherein one end of the slag-water mixture pipeline (6) is connected with one end of the condensed water spray pipeline (5), and the connection part of the slag-water mixture pipeline (6) and the condensed water spray pipeline (5) is connected with the first filtering sub-tank (91) and the second filtering sub-tank (92) in a one-to-one correspondence manner through the first filtering tank pipeline (81) and the second filtering tank pipeline (82).
4. The energy-saving and whitening system for blast furnace slag granulation according to claim 1, wherein a first valve (71) is arranged on the first filtering tank pipeline (81), a second valve (72) is arranged on the second filtering tank pipeline (82), and the working state of the first valve (71) is opposite to the working state of the second valve (72).
5. Energy-saving and whitening system for blast furnace slag granulation according to claim 1, characterized in that the spraying device (14) is able to turn the non-condensed steam in the granulation tower (4) into condensed water and drop with the spray water into the bottom of the high-altitude chimney (1).
6. The energy-saving and whitening system for blast furnace slag granulation according to claim 5, wherein the demister (13) is capable of removing uncondensed steam and small water droplets, and the backwashing means (12) is capable of periodically backwashing the demister (13).
7. The energy-saving and whitening system for blast furnace slag granulation according to claim 1, wherein the spraying device (14) comprises long spray guns (15) and short spray guns (16) which are uniformly and alternately arranged along the circumferential direction of the high-altitude chimney (1), and a plurality of high-pressure spray heads (17) are uniformly arranged on the long spray guns (15) and the short spray guns (16).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811610066.7A CN109457069B (en) | 2018-12-27 | 2018-12-27 | Energy-saving and white-eliminating system for blast furnace slag granulation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811610066.7A CN109457069B (en) | 2018-12-27 | 2018-12-27 | Energy-saving and white-eliminating system for blast furnace slag granulation |
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| CN109457069A CN109457069A (en) | 2019-03-12 |
| CN109457069B true CN109457069B (en) | 2024-03-22 |
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| CN201811610066.7A Active CN109457069B (en) | 2018-12-27 | 2018-12-27 | Energy-saving and white-eliminating system for blast furnace slag granulation |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110894562B (en) * | 2019-12-25 | 2023-12-29 | 中冶京诚工程技术有限公司 | White system of straining at bottom of blast furnace slag |
| CN111004880B (en) * | 2019-12-25 | 2024-03-05 | 中冶京诚工程技术有限公司 | White device of blast furnace grain slag system that disappears |
| CN113637811B (en) * | 2021-07-29 | 2023-03-07 | 中国恩菲工程技术有限公司 | Slag flushing pool and water vapor recycling system |
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| CN101265039A (en) * | 2008-04-25 | 2008-09-17 | 中冶京诚工程技术有限公司 | Environment-friendly type bottom filter process blast furnace slag treatment device and treatment method |
| CN104278116A (en) * | 2013-07-11 | 2015-01-14 | 北京亿玮坤节能科技有限公司 | Blast furnace slag steam recovery method and system |
| CN109022647A (en) * | 2018-08-08 | 2018-12-18 | 北京钢元工程技术有限公司 | A kind of bottom filter method Water ramjet+ and process |
| CN209292374U (en) * | 2018-12-27 | 2019-08-23 | 中冶京诚工程技术有限公司 | A kind of granulated energy conservation of blast furnace cinder disappears white system |
-
2018
- 2018-12-27 CN CN201811610066.7A patent/CN109457069B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101265039A (en) * | 2008-04-25 | 2008-09-17 | 中冶京诚工程技术有限公司 | Environment-friendly type bottom filter process blast furnace slag treatment device and treatment method |
| CN104278116A (en) * | 2013-07-11 | 2015-01-14 | 北京亿玮坤节能科技有限公司 | Blast furnace slag steam recovery method and system |
| CN109022647A (en) * | 2018-08-08 | 2018-12-18 | 北京钢元工程技术有限公司 | A kind of bottom filter method Water ramjet+ and process |
| CN209292374U (en) * | 2018-12-27 | 2019-08-23 | 中冶京诚工程技术有限公司 | A kind of granulated energy conservation of blast furnace cinder disappears white system |
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| CN109457069A (en) | 2019-03-12 |
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