CN114130802A - Steel slag treatment system and steel slag treatment process - Google Patents
Steel slag treatment system and steel slag treatment process Download PDFInfo
- Publication number
- CN114130802A CN114130802A CN202111352055.5A CN202111352055A CN114130802A CN 114130802 A CN114130802 A CN 114130802A CN 202111352055 A CN202111352055 A CN 202111352055A CN 114130802 A CN114130802 A CN 114130802A
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- slag
- steel slag
- flue gas
- pool
- water
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- 239000002893 slag Substances 0.000 title claims abstract description 206
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 119
- 239000010959 steel Substances 0.000 title claims abstract description 119
- 238000000034 method Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 73
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000003546 flue gas Substances 0.000 claims abstract description 48
- 238000011084 recovery Methods 0.000 claims abstract description 36
- 239000000428 dust Substances 0.000 claims abstract description 31
- 238000006243 chemical reaction Methods 0.000 claims abstract description 30
- 230000029087 digestion Effects 0.000 claims abstract description 30
- 238000009835 boiling Methods 0.000 claims abstract description 5
- 238000010025 steaming Methods 0.000 claims abstract description 5
- 239000000779 smoke Substances 0.000 claims description 29
- 239000002918 waste heat Substances 0.000 claims description 29
- 239000007789 gas Substances 0.000 claims description 17
- 238000001914 filtration Methods 0.000 claims description 14
- 238000004891 communication Methods 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 7
- 238000002485 combustion reaction Methods 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 6
- 238000010248 power generation Methods 0.000 claims description 4
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 11
- 239000002184 metal Substances 0.000 abstract description 8
- 229910052751 metal Inorganic materials 0.000 abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000009628 steelmaking Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- -1 and meanwhile Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000005453 pelletization Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The application relates to a steel slag treatment system and a steel slag treatment process, which comprise a slag smoldering pool, a slag slaking pool and a slag processing pool, wherein the slag smoldering pool is used for containing thermal-state steel slag and digesting f-CaO and f-MgO in the steel slag to generate Ca (OH)2 and Mg (OH) 2; the water supply and drainage assembly is used for injecting water into the slag disintegrating pool from the bottom of the slag disintegrating pool, so that the steel slag in the slag disintegrating pool is subjected to digestion reaction in a steaming and high-temperature water boiling state, and the water in the slag disintegrating pool is discharged after the digestion reaction is finished; the flue gas collecting system is used for collecting flue gas generated in the steel slag digestion reaction process, and the flue gas is discharged after dust removal, and the flue gas collecting system has the effects of optimizing the steel slag treatment site environment and improving the steel slag metal recovery rate.
Description
Technical Field
The application relates to the technical field of steel slag treatment, in particular to a steel slag treatment system and a steel slag treatment process.
Background
The steel slag is a byproduct generated in the steel-making process, mainly is solid waste generated by extracting impurity substances by lime in the steel-making process, and has large discharge amount and low utilization rate in the steel-making process; but the processed steel slag can be reused in the steel-making or sintering process and can be used as a roadbed or a building raw material, so that a steel slag processing system and a steel slag processing process are very important.
The existing method for treating the steel slag mostly adopts a slag line hot splashing method, namely, the steel slag is tipped and cooled for 3 to 4 days, most of the steel slag is decomposed and crushed automatically, and the steel slag is crushed and magnetically separated for subsequent treatment. The method has the disadvantages of serious environmental pollution, insufficient slag iron separation and low iron material recovery rate. The f-CaO and the f-MgO in the steel slag have incomplete digestion reaction and can not be used as roadbed or building raw materials. The traditional slag disintegrating pool can not carry out effective smoke collection, the dust removal effect can not reach the emission standard, and no effective means is provided for recycling the heat of the steel slag. In addition, combustible gas is easy to gather and the explosion tendency is serious when water is injected and sprayed on the upper part of the steel slag.
In view of the above-mentioned related art, the inventors consider that there are disadvantages of the harsh environment of the steel slag treatment site and the low metal recovery rate.
Disclosure of Invention
In order to overcome the defects of severe environment and low metal recovery rate of a steel slag treatment site, the application provides a steel slag treatment system and a steel slag treatment process.
In a first aspect, the present application provides a steel slag treatment system, which adopts the following technical scheme, including:
the slag smoldering pool is used for containing the thermal-state steel slag (not less than 300 ℃) and digesting f-CaO and f-MgO in the steel slag to generate Ca (OH)2 and Mg (OH) 2;
the water supply and drainage assembly is used for injecting water into the slag disintegrating pool from the bottom of the slag disintegrating pool, so that the steel slag in the slag disintegrating pool is subjected to digestion reaction in a steaming and high-temperature water boiling state, and the water in the slag disintegrating pool is discharged after the digestion reaction is finished;
and the flue gas collecting system is used for collecting flue gas generated in the steel slag digestion reaction process, and discharging the flue gas after reaching the standard or utilizing waste heat after dust removal.
By adopting the technical scheme, when the steel slag is treated, the slag disintegrating pool is arranged for containing the thermal-state steel slag, when the steel slag is completely filled, the water supply and drainage assembly is started, water is added into the slag disintegrating pool by the water supply and drainage assembly, the thermal-state steel slag reacts with water to generate high-temperature steam and combustible gas, and when the water is injected to submerge the steel slag, the thermal-state steel slag is boiled in the slag disintegrating pool to generate digestion reaction; meanwhile, the generated combustible gas is combusted under the action of the high-temperature steel slag to generate heat; meanwhile, the flue gas collecting system collects the generated hot gas and smoke dust, removes dust and discharges the dust after reaching the standard; the steel slag after digestion reaction improves the metal recovery rate of the steel slag, the smoke collection system can reduce the emission of smoke dust, and meanwhile, water is injected from the bottom of the slag disintegrating pool, so that the explosion condition caused by the aggregation of combustible gas is avoided, the metal recovery rate of the steel slag is improved, and the problem of severe field environment treatment of the steel slag is optimized.
Preferably, the water supply and drainage assembly is communicated with a filtering assembly for filtering the discharged water in the slag disintegrating pool.
Through adopting above-mentioned technical scheme, supply drainage subassembly exhaust water to collect after the filtering component filters, the water after collecting circulates to the vexed slag bath through supplying drainage subassembly once more, has realized the cyclic utilization of water resource, has reached energy-conserving effect.
Preferably, the flue gas collection system comprises:
the top part of the smoke collecting cover is opened for charging, smashing and discharging slag;
and the dust removal system is communicated with the smoke collection cover and is used for filtering impurities in the smoke and further obtaining purified clean smoke reaching the standard.
Through adopting above-mentioned technical scheme, the flue gas that the top part was opened is collected the cover and can be realized collecting the flue gas in the vexed slag bath when dress sediment, smash the sediment and slag tap, and the flue gas is collected the cover and is used with the dust pelletizing system cooperation simultaneously and has realized filtering the impurity in the flue gas, and then discharges clean gas up to standard, has reached the effect of optimizing slag treatment site environment.
Preferably, the flue gas collecting cover is communicated with a waste heat recovery system;
and the waste heat recovery system is used for recovering heat generated by combustion of combustible gas generated by steel slag digestion reaction under the action of high-temperature steel slag and generating pure saturated steam for power generation.
Through adopting above-mentioned technical scheme, waste heat recovery system's setting realizes carrying out the heat exchange with the heat in the flue gas and water, and the steam that produces drives steam generator and generates electricity, and then has realized the utilization of thermal state slag heat energy, and then has reached the effect that improves the slag utilization ratio.
Preferably, the waste heat recovery system, the water supply and drainage assembly and the dust removal system are communicated with a communication line; the communication line is used for transmitting electric power.
By adopting the technical scheme, the electric power generated by the waste heat recovery system is transmitted to the water supply and drainage assembly and the dust removal system, so that the use of the energy of the thermal-state steel slag is realized, and the effect of reducing the consumption of electric energy is achieved.
In a second aspect, the present application provides a steel slag treatment process, which adopts the following technical scheme:
the steel slag treatment process comprises the following steps: s1, charging slag, pouring the thermal steel slag into a slag disintegrating pool, and simultaneously carrying out slag smashing treatment on the steel slag;
s2, supplying and draining water, namely supplying water into the slag disintegrating pool, and draining the water in the slag disintegrating pool after the slag is subjected to digestion reaction;
and S3, collecting flue gas, wherein the flue gas collection system collects heat generated by combustion of combustible gas generated by digestion reaction under the action of high-temperature steel slag, and purifies the flue gas.
By adopting the technical scheme, the hot-state steel slag is poured into the slag disintegrating pool and simultaneously is subjected to slag smashing treatment, so that the molten-state steel slag in the hot-state steel slag can be conveniently cooled, meanwhile, the smoke collecting system can collect, purify and discharge smoke generated by slag discharging and slag smashing, when the slag discharging is finished, the water is injected into the slag disintegrating pool by the water supply and drainage assembly, after the digestion reaction of the hot-state steel slag is finished, the water in the slag disintegrating pool is discharged by the water supply and drainage assembly, and when the digestion reaction and slag discharging are carried out, the smoke collecting system collects high-temperature smoke and removes dust and discharges the smoke after reaching the standard; thereby achieving the effect of optimizing the site environment of steel slag treatment.
Preferably, in step S3, the flue gas collection system is in communication with a waste heat recovery system for converting heat in the flue gas into steam energy and into electric energy.
By adopting the technical scheme, the arrangement of the waste heat recovery system can realize that the high-temperature flue gas collected by the flue gas collection system is converted into water vapor, and the water vapor drives the steam generator to generate electricity; thereby improving the utilization rate of the thermal state steel slag.
Preferably, the communication line transmits the electric power generated by the waste heat recovery system to the water supply and drainage assembly and the dust removal system.
Through adopting above-mentioned technical scheme, the electric energy that waste heat recovery system produced directly transmits to water supply and drainage subassembly and dust pelletizing system for it provides the electric energy, has reduced the consumption of the energy of electric energy.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the slag disintegrating pool is matched with the water supply and drainage assembly for use, so that the metal recovery rate of the steel slag is improved, and the condition that combustible gas is accumulated and exploded is avoided;
2. the smoke collection system and the waste heat recovery system are used in a matched mode, so that the environment of a steel slag treatment site is optimized, and meanwhile, the waste heat recovery system improves the utilization rate of thermal-state steel slag;
3. the filtering assembly is arranged, so that the effect that the water supplied and drained by the water supply and drainage assembly is filtered by the water discharged from the slag disintegrating pool is realized, the water is convenient to reuse, and the effect of saving resources is achieved.
Drawings
Fig. 1 is an overall schematic diagram of an embodiment of the present application.
Detailed Description
The present application is described in further detail below with reference to fig. 1.
The embodiment of the application discloses steel slag processing system.
Referring to fig. 1, the steel slag treatment system comprises a slag disintegrating pool, a water supply and drainage assembly, a flue gas collection system and a waste heat recovery system; the slag disintegrating pool is used for containing the thermal-state steel slag, wherein the temperature of the thermal-state steel slag is more than or equal to three hundred ℃ (more than or equal to 300 ℃), and the slag disintegrating pool is used for digesting f-CaO and f-MgO in the steel slag to generate Ca (OH)2 and Mg (OH) 2; the water supply and drainage assembly is used for injecting water into the slag disintegrating pool from the bottom of the slag disintegrating pool, so that the steel slag in the slag disintegrating pool is subjected to digestion reaction in steaming and high-temperature water boiling states, and the water in the slag disintegrating pool is discharged after digestion is finished; the water supply and drainage assembly is connected with a filtering assembly used for filtering water discharged from the slag disintegrating pool; the flue gas collection system is used for collecting flue gas generated by steel slag digestion reaction and removing dust, and the flue gas is discharged or waste heat is utilized after reaching the standard; the waste heat recovery system is used for recovering heat generated by combustion of combustible gas generated by steel slag digestion reaction under the action of high-temperature steel slag and generating pure saturated steam for power generation.
During the steel slag treatment process, steel slag is placed in a slag disintegrating pool, during the placement process, slag smashing treatment is carried out on thermal steel slag, meanwhile, smoke dust is collected by a smoke collection system, when the thermal steel slag is completely filled, a water supply and drainage assembly injects water into the slag disintegrating pool from the bottom of the slag disintegrating pool, water is in contact with the thermal steel slag during the water injection process to generate steam, the steel slag is in a steaming state at the moment, when the water is over the steel slag, water boiling reaction of the steel slag occurs in the slag pool, further the digestion reaction of the steel slag is completed, combustible gas generated during the digestion reaction of the steel slag is combusted under the action of the thermal steel slag to generate heat, and the generated heat is recycled by a waste heat recovery system to be used for power generation; the slag disintegrating pool and the water supply and drainage assembly are matched for use, so that the metal recovery rate of the steel slag is improved, and the condition that combustible gas generated by the steel slag is gathered and exploded is eliminated; the smoke dust collecting system and the waste heat recovery system are matched for use, so that the environment of a steel slag treatment site is optimized, the utilization rate of the steel slag is improved, and the energy consumption is reduced.
Referring to fig. 1, the flue gas collection system comprises a flue gas collection cover and a dust removal system, wherein the top part of the flue gas collection cover is opened for workers to fill slag into the slag disintegrating pool, smash slag in the slag filling process and discharge slag after digestion reaction of steel slag; meanwhile, the heat recovery system is used for transferring the heat in the flue gas to the waste heat recovery system; the dust removal system is communicated with the smoke collection cover and is used for filtering impurities in smoke dust, so that purified high-temperature clean smoke is obtained, and the dust removal system is used for filtering the impurities in the smoke collection process, so that the smoke is discharged up to the standard.
Referring to fig. 1, communication lines are communicated between the waste heat recovery system and the water supply and drainage assembly and the dust removal system, and the communication lines are used for transmitting electric power; the electric energy generated by the waste heat recovery assembly is transmitted to the water supply and drainage assembly through the communication line to supply power to the water supply pump and the drainage pump, and is transmitted to the dust removal system to supply power to the dust removal motor, and the communication line improves the utilization rate of the steel slag and reduces the energy consumption.
The implementation principle of the steel slag treatment system in the embodiment of the application is as follows: placing the steel slag in a slag disintegrating pool, collecting and filtering the smoke gas by a smoke gas collecting system in the placing process, and simultaneously carrying out slag smashing treatment on the thermal steel slag placed in the slag disintegrating pool; when the slag filling is finished, the water supply and drainage assembly injects water into the slag disintegrating pool, at the moment, the steel slag is subjected to digestion reaction, meanwhile, the flue gas collection system purifies the collected smoke dust through the dust removal system to obtain high-temperature clean flue gas, and the waste heat recovery assembly is used for converting heat in the high-temperature flue gas into electric energy; thereby achieving the effects of optimizing the steel slag treatment site environment, improving the steel slag metal recovery rate, improving the safety of the steel slag treatment process and reducing the energy consumption.
The embodiment of the application also discloses a steel slag treatment process.
The method comprises the following steps:
s1, charging slag, pouring the thermal steel slag into a slag disintegrating pool, and simultaneously carrying out slag smashing treatment on the steel slag;
s2, supplying and draining water, namely supplying water into the slag disintegrating pool, and draining the water in the slag disintegrating pool after the slag is subjected to digestion reaction;
s3, collecting flue gas, wherein the flue gas collection system collects heat generated by combustion of combustible gas generated by digestion reaction under the action of high-temperature steel slag, and purifies the flue gas; the flue gas collection system is communicated with the waste heat recovery system and used for converting heat in the flue gas into steam energy and converting the steam energy into electric energy.
The communication line transmits the electric power generated by the waste heat recovery system to the water supply and drainage assembly and the dust removal system.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A steel slag treatment system, comprising:
the slag smoldering pool is used for containing the thermal state steel slag and digesting f-CaO and f-MgO in the steel slag to generate Ca (OH)2 and Mg (OH) 2;
the water supply and drainage assembly is used for injecting water into the slag disintegrating pool from the bottom of the slag disintegrating pool, so that the steel slag in the slag disintegrating pool is subjected to digestion reaction in a steaming and high-temperature water boiling state, and the water in the slag disintegrating pool is discharged after the digestion reaction is finished;
and the flue gas collecting system is used for collecting flue gas generated in the steel slag digestion reaction process, and discharging the flue gas after reaching the standard or utilizing waste heat after dust removal.
2. The steel slag treatment system according to claim 1, wherein: and the water supply and drainage assembly is communicated with a filtering assembly used for filtering the discharged water in the slag disintegrating pool.
3. The steel slag treatment system according to claim 1, wherein: the flue gas collection system includes:
the top part of the smoke collecting cover is opened for charging, smashing and discharging slag;
and the dust removal system is communicated with the smoke collection cover and is used for filtering impurities in the smoke and further obtaining purified clean smoke reaching the standard.
4. A steel slag treatment system according to claim 3, wherein: the flue gas collecting cover is communicated with a waste heat recovery system;
and the waste heat recovery system is used for recovering heat generated by combustion of combustible gas generated by steel slag digestion reaction under the action of high-temperature steel slag and generating pure saturated steam for power generation.
5. The steel slag treatment system according to claim 1, wherein: the waste heat recovery system is communicated with the water supply and drainage assembly and the dust removal system through communication lines; the communication line is used for transmitting electric power.
6. A steel slag treatment process according to any one of claims 1 to 5, comprising the steps of;
s1, charging slag, pouring the thermal steel slag into a slag disintegrating pool, and simultaneously carrying out slag smashing treatment on the steel slag;
s2, supplying and draining water, namely supplying water into the slag disintegrating pool, and draining the water in the slag disintegrating pool after the slag is subjected to digestion reaction;
and S3, collecting flue gas, wherein the flue gas collection system collects heat generated by combustion of combustible gas generated by digestion reaction under the action of high-temperature steel slag, and purifies the flue gas.
7. The steel slag treatment process according to claim 6, wherein the steel slag treatment process comprises the following steps: in step S3, the flue gas collection system is communicated with the waste heat recovery system for converting heat in the flue gas into steam energy and into electric energy.
8. The steel slag treatment process according to claim 7, wherein the steel slag treatment process comprises the following steps: the communication line transmits the electric power generated by the waste heat recovery system to the water supply and drainage assembly and the dust removal system.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111352055.5A CN114130802B (en) | 2021-11-16 | 2021-11-16 | Steel slag treatment system and steel slag treatment process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111352055.5A CN114130802B (en) | 2021-11-16 | 2021-11-16 | Steel slag treatment system and steel slag treatment process |
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| CN114130802A true CN114130802A (en) | 2022-03-04 |
| CN114130802B CN114130802B (en) | 2022-10-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60231444A (en) * | 1984-04-28 | 1985-11-18 | 日本磁力選鉱株式会社 | Use of highly basic steel slag |
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| JP2000334418A (en) * | 1999-06-01 | 2000-12-05 | Kawasaki Steel Corp | Method for solidifying steel making slag |
| CN202017029U (en) * | 2011-03-21 | 2011-10-26 | 鞍山钢铁集团公司 | Short-flow stuffy slag water returning device |
| CN103667554A (en) * | 2013-12-26 | 2014-03-26 | 北京中冶设备研究设计总院有限公司 | Device and method for recycling and treating waste heat of high-temperature steel slag |
| CN103667555A (en) * | 2013-12-26 | 2014-03-26 | 北京中冶设备研究设计总院有限公司 | Well type slag ladle device for recycling waste heat of high-temperature steel slag |
| CN106119448A (en) * | 2016-05-09 | 2016-11-16 | 浙江哈斯科节能技术有限公司 | A kind of method that hot steel slag quickly cools down |
| US20180312933A1 (en) * | 2016-01-19 | 2018-11-01 | Qingdao Technological University | Method of simultaneously recycling plastics and detoxifying chromite ore processing residue by residual heat from steel slag |
| CN111378796A (en) * | 2018-12-30 | 2020-07-07 | 孙学贤 | Converter steel slag waste heat utilization equipment system and process principle |
| CN111925143A (en) * | 2020-08-07 | 2020-11-13 | 中冶节能环保有限责任公司 | Large-diameter vertical steel slag pressure hot stuffy tank and steel slag treatment method |
-
2021
- 2021-11-16 CN CN202111352055.5A patent/CN114130802B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60231444A (en) * | 1984-04-28 | 1985-11-18 | 日本磁力選鉱株式会社 | Use of highly basic steel slag |
| JPH05117736A (en) * | 1991-10-28 | 1993-05-14 | Hamada Juko Kk | Method and equipment for treating steel slag |
| JP2000334418A (en) * | 1999-06-01 | 2000-12-05 | Kawasaki Steel Corp | Method for solidifying steel making slag |
| CN202017029U (en) * | 2011-03-21 | 2011-10-26 | 鞍山钢铁集团公司 | Short-flow stuffy slag water returning device |
| CN103667554A (en) * | 2013-12-26 | 2014-03-26 | 北京中冶设备研究设计总院有限公司 | Device and method for recycling and treating waste heat of high-temperature steel slag |
| CN103667555A (en) * | 2013-12-26 | 2014-03-26 | 北京中冶设备研究设计总院有限公司 | Well type slag ladle device for recycling waste heat of high-temperature steel slag |
| US20180312933A1 (en) * | 2016-01-19 | 2018-11-01 | Qingdao Technological University | Method of simultaneously recycling plastics and detoxifying chromite ore processing residue by residual heat from steel slag |
| CN106119448A (en) * | 2016-05-09 | 2016-11-16 | 浙江哈斯科节能技术有限公司 | A kind of method that hot steel slag quickly cools down |
| CN111378796A (en) * | 2018-12-30 | 2020-07-07 | 孙学贤 | Converter steel slag waste heat utilization equipment system and process principle |
| CN111925143A (en) * | 2020-08-07 | 2020-11-13 | 中冶节能环保有限责任公司 | Large-diameter vertical steel slag pressure hot stuffy tank and steel slag treatment method |
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| CN114130802B (en) | 2022-10-14 |
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