CN103449597A - Hot stifle backwater treatment device and method of converter slag - Google Patents
Hot stifle backwater treatment device and method of converter slag Download PDFInfo
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- CN103449597A CN103449597A CN2013104014418A CN201310401441A CN103449597A CN 103449597 A CN103449597 A CN 103449597A CN 2013104014418 A CN2013104014418 A CN 2013104014418A CN 201310401441 A CN201310401441 A CN 201310401441A CN 103449597 A CN103449597 A CN 103449597A
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Abstract
The invention provides hot stifle backwater treatment device and method of a converter slag. An aerator, a smoke supply pipe, a smoke pressure station, a smoke measuring instrument, a pH value measuring apparatus, a lye mixer, and a lye measuring instrument are added. The smoke generated after a gas burns is led to a hot stifle backwater of the slag through the aerator, so that CO2 reacts with free CaO and free MgO; the conduction degree of the reaction is controlled through a pH value; clear liquid after large particles participate enters inside a primary purification pool; an alkali liquor is led to the primary purification pool, so as to flocculate and precipitate; the pH value of the backwater is controlled by flow feedback of the alkali liquor; the purified stuffy slag backwater is taken as stuffy slag spray water after being led to a cooling tower to be cooled. By adopting the device, scaling of a water return pipe can be reduced; the service life of the pipe is prolonged; a flocculation precipitation agent is saved; the backwater handling expenses are reduced; chemical storage of CO2 is achieved; pollution of CO2 emission of an enterprise and flue gas dust on atmosphere is reduced; the stuffy slag effect is improved; the stuffy slag backwater is also purified.
Description
Technical field
The invention belongs to metallurgical industry circulating water treatment field, relate in particular to a kind of for improving treatment unit and the treatment process thereof of the vexed backwater water quality of converter slag heat.
Background technology
The vexed treatment process of molten steel slag heat utilizes steel slag waste heat exactly, makes it become steam add cold water in container with lid after, and slag is cleared up, and reaches slag iron by the expansion shrinkage and separates.Slag after processing, stable performance, eliminate the impact of free state CaO on the slag performance, can be used as the raw material of slag micro powder, steel slag brick etc.This technique is fragmentation and the slag that separates size fractionated well, effectively clears up free CaO, MgO in tailings, greatly improves the sanitary condition of slag processing, improves the utilising efficiency of steel slag resource.Therefore, this technique was widely used and developed in TECHNIQUE TO LARGE INTEGRATED STEEL WORKS in recent years.
In the vexed cycle for the treatment of water system of molten steel slag heat, steel slag hot disintegrating is large with evaporated quantity of water, steam output accounts for 60%-70%, free CaO in slag is cleared up and is entered recirculated water, cause steel slag hot disintegrating output water temperature, hardness, basicity, pH value to raise, for very easily fouling type water quality, can be caused fouling in water circulation system if do not processed, impact is normally produced.
The unsettled major cause of steel slag hot disintegrating circulating water quality is, the high density incrustation ion contained in hot vexed backwater and airborne CO
2reaction, this mechanism with the fouling of general circulating water cooling system deposition is different, and general fouling in water circulation system is because along with the carrying out of heating, the CO in water
2discharge, hydrocarbonate is converted into carbonate and deposits.Therefore, traditional lime softening method, ion exchange method and embrane method are not suitable for the processing of this type of water; Simultaneously because supplementing the new water water yield, system accounts for more than 60% of total amount, the effect of utilizing merely the method for corrosion inhibiting and descaling agent to play.
Also there are some to process Patents and the document of the vexed backwater of converter slag heat both at home and abroad, as Chinese Patent Application No. is 201010584171.5, " method and apparatus of hot vexed backwater UTILIZATION OF VESIDUAL HEAT IN in a kind of steel slag hot disintegrating technique " disclosed, its subject matter is: in steel slag hot disintegrating technique, hot vexed backwater is after the settling tank precipitation, overflow enters just water purifying tank, enter water purifying tank by first water purifying tank again, in water purifying tank, by dosing, process and remove incrustation scale and suspended particle.This invention need to add a large amount of scale removers, causes the operation operation cost obviously to increase, and backwater water quality is caused to certain pollution.
Chinese Patent Application No. is 201010226763.X, and a kind of " method for treatment of turbid circulating water by steelmaking slag " is provided, and is by the draining after evaporation of residues processing technique water; Flow into open drainage; Flow into the suction well make up water; By water pump, pressurize; By solid-liquid separator, discharge the higher waste water of solid content, for all the other water cycles.This invention only realizes the separation of most macrobead solids in the slag backwater by solid-liquid separator, reduced failure rate, but any effect of improving does not appear in its backwater water quality.Therefore, in prior art, there are the defects such as process costs is high, implementation result is poor in the vexed backwater water conditioning process of converter slag heat, and the problems such as the pipeline scale that the vexed technique of converter slag heat is existed, corrosion are not solved at all.
Summary of the invention
The present invention is intended to overcome the deficiencies in the prior art, and a kind of vexed slag water return pipeline fouling that reduces is provided, and reduces the pipe-line maintenance expense, improves vexed slag effect, reduces the failure rate of vexed slag installations and facilities, can make the CO in flue gas simultaneously
2stored, reduced the converter slag vexed backwater treating device of heat and the method for discharge and dust pollution.
For this reason, the solution that the present invention takes is:
The vexed backwater treating device of a kind of converter slag heat, comprise vexed slag bath, vexed pulp water return water pipe, horizontal sedimentation tank, first water purifying tank, water purifying tank, processing water return water pipe, cooling tower, new water pipe and cold rinse bank, it is characterized in that, set up aerator, flue gas air-supply duct, flue gas pressurizing point, flue gas gauge, pH pH-value determination pH device, alkali lye mixing tank and alkali lye gauge; One aerator is installed on the vexed pulp water return water pipe be connected with horizontal sedimentation tank at vexed slag bath, vexed pulp water return water pipe end is equipped with pH pH-value determination pH device, aerator is connected with the flue gas pressurizing point with the flue gas gauge by pipe connecting, and flue gas pressurizing point opposite side connects the flue gas air-supply duct; Be connected with alkali lye gauge and alkali lye mixing tank in first water purifying tank one side be connected with horizontal sedimentation tank, the alkali lye gauge is connected with the pH pH-value determination pH device in being located at first water purifying tank.
The vexed backwater treatment process of a kind of converter slag heat, its concrete steps are:
1, by flue gas pressurizing point and aerator to the flue gas passed in the backwater of steel slag hot disintegrating after gas-fired, make CO in flue gas
2occur following four and react with the free CaO in backwater, free MgO:
Ca(OH)
2+CO
2→CaCO
3↓+H
2O
CaCO
3+CO
2+H
2O→Ca(HCO
3)
2
Mg(OH)
2+CO
2→MgCO
3↓+H
2O
MgCO
3+CO
2+H
2O→Mg(HCO
3)
2
After reaction, generate Ca (HCO
3)
2, Mg (HCO
3)
2, carbonate deposition in backwater is obviously reduced, suppress the water return pipeline scale formation simultaneously;
CO
2after passing into steel slag hot disintegrating water, the pH of backwater and CO
2intake forms the nonlinear dependence relation, by CO
2intake, as the characterization parameter of reaction process, is controlled the degree of carrying out of above reaction by the flue gas flow feedback signal, the span of control of its pH value is 6.5～8.5;
2, backwater enters settling tank, and after precipitation occurs large particulate matter, the supernatant liquid overflow enters just water purifying tank; 3, pass into alkali lye by the alkali lye gauge by the alkali lye mixing tank in first water purifying tank, improve the pH value of backwater, make Ca (HCO in backwater
3)
2, Mg (HCO
3)
2react:
Ca(HCO
3)
2→CaCO
3↓+ CO
2+H
2O
Mg(HCO
3)
2→CaCO
3↓+ CO
2+H
2O
Form CaCO
3, MgCO
3flocculation sediment, remove descale and suspended particle by flocculation sediment, obtains vexed slag and purify backwater, reduces the total hardness of backwater, and its supernatant liquid overflow enters water purifying tank;
By the pH value of flux of alkaline liquor feedback control backwater, its span of control is 9.5～10.5;
4, the vexed slag backwater of the purification in water purifying tank is passed into to cooling tower cooling, after supplementing new water as vexed slag spray water.
Described flue gas is the flue gas after blast furnace gas, coal gas of converter, coke-oven gas, mixed gas fully burn, its CO
2content is 10%～25%, CO≤0.2%, N
2content is 50%～70%, O
2content is 0～5%, H
2o content is 0～17%.
Described alkali lye is Na
2cO
3, Ca (OH)
2etc. alkaline mixed solution, Na wherein
2cO
3the concentration range of mixing solutions is 10%～50%, Ca (OH)
2the concentration range of mixing solutions is 5%～22%.
Compared with the prior art, the present invention has following effect:
1, can obviously reduce the fouling of vexed slag water return pipeline, reduce the pipe-line maintenance expense, improve pipeline work-ing life;
2, can save a large amount of flocculation sediment with medicament, reduce the backwater processing costs, reduce the pollution of medicament to water body;
3, absorb the CO in flue gas by backwater
2with all kinds of dust, realize CO
2chemistry store, reduce the CO of enterprise
2discharge reduces the pollution of exhaust gas dust to atmosphere simultaneously;
4, can improve vexed slag effect, reduce the failure rate of vexed slag equipment and facility, purify vexed slag backwater water quality.
The accompanying drawing explanation
Fig. 1 is the vexed backwater treating device structural representation of converter slag heat.
In figure: vexed slag bath 1, vexed pulp water return water pipe 2, aerator 3, flue gas air-supply duct 4, flue gas pressurizing point 5, flue gas gauge 6, pH pH-value determination pH device 7, horizontal sedimentation tank 8, alkali lye mixing tank 9, alkali lye gauge 10,
First water purifying tank 11, water purifying tank 12, backwater gauge 13, processing water return water pipe 14, cooling tower 15, new water pipe 16, cold rinse bank 17.
Embodiment
The vexed backwater treatment system of original converter slag heat mainly is comprised of vexed slag bath 1, vexed pulp water return water pipe 2, horizontal sedimentation tank 8, first water purifying tank 11, water purifying tank 12, processing water backwater gauge 13, processing water return water pipe 14, cooling tower 15, new water pipe 16 and cold rinse bank 17.Vexed slag bath 1 is connected with horizontal sedimentation tank 8 by vexed pulp water return water pipe 2, horizontal sedimentation tank 8 is connected with first water purifying tank 11 by return water pipe, just water purifying tank 11 is connected with water purifying tank 12 by overflow port, backwater after water purifying tank 12 is processed is delivered to cooling tower 15 via backwater gauge 13, processing water return water pipe 14, cooling tower 15 is connected with cold rinse bank 17 with supplementing new 16 whiles of water pipe, and cold rinse bank 17 is delivered in vexed slag bath 1 by return water pipe after processing.
The vexed backwater treating device of converter slag heat of the present invention, be at original vexed slag bath 1, vexed pulp water return water pipe 2, horizontal sedimentation tank 8, first water purifying tank 11, water purifying tank 12, process on the basis of water backwater gauge 13, processing water return water pipe 14, cooling tower 15, new water pipe 16 and cold rinse bank 17, newly established again aerator 3, flue gas air-supply duct 4, flue gas pressurizing point 5, flue gas gauge 6, pH pH-value determination pH device 7, alkali lye mixing tank 8 and alkali lye gauge 10.Particular location and syndeton are: on the vexed pulp water return water pipe 2 that connects vexed slag bath 1 and horizontal sedimentation tank 8, an aerator 3 and pH pH-value determination pH device 7 have been installed, vexed pulp water return water pipe 2 ends are equipped with pH pH-value determination pH device 7, and measurement result is fed back to flue gas gauge 6.Aerator 3 is connected with flue gas pressurizing point 5 with flue gas gauge 6 by pipe connecting, and the opposite side of flue gas pressurizing point 5 is equiped with flue gas air-supply duct 4; Flue gas after 5 pressurizations of flue gas pressurizing point, leads to aerator 3 by flue gas gauge 6 by flue gas air-supply duct 4.A side at the first water purifying tank 11 be connected with horizontal sedimentation tank 8 is equipped with alkali lye gauge 10 and alkali lye mixing tank 9, and alkali lye gauge 10 is connected with another pH pH-value determination pH device 7 in being located at first water purifying tank 11.Alkali lye is sent in first water purifying tank 11 by pipeline after measuring by alkali lye gauge 10, then carries out the detection of ph value by the hydrogen ion determination apparatus 7 of first water purifying tank 11 middle and upper parts installations, and measurement result is fed back to alkali lye gauge 10.Just water purifying tank 11 is connected with water purifying tank 12 by overflow port, backwater after water purifying tank 12 is processed is delivered to cooling tower 15 via backwater gauge 13, processing water return water pipe 14, cooling tower 15 is connected with cold rinse bank 17 with supplementing new 16 whiles of water pipe, and cold rinse bank 17 is delivered in vexed slag bath 1 by return water pipe after processing again.
Embodiment 1:
The vexed backwater treatment process of converter slag heat of the present invention, its concrete steps are:
1,pass into the flue gas after gas-fired by flue gas pressurizing point 5 and boring aeration device 3 to the backwater in steel slag hot disintegrating technique.
Flue gas is fully burnt and forms by mixed gas, and its main component is in Table 1.
Table 1 embodiment 1 smoke components table
| Smoke components | CO 2 | CO | N 2 | O 2 | H 2O | Other |
| Volume percent content % | 13.32 | 0.0005 | 70.18 | 1.30 | 15.18 | 0.0195 |
CO in flue gas
2occur following four and react with the free CaO in backwater, free MgO:
Ca(OH)
2+CO
2→CaCO
3↓+H
2O
CaCO
3+CO
2+H
2O→Ca(HCO
3)
2
Mg(OH)
2+CO
2→MgCO
3↓+H
2O
MgCO
3+CO
2+H
2O→Mg(HCO
3)
2
After reaction, generate Ca (HCO
3)
2, Mg (HCO
3)
2, carbonate deposition in backwater is obviously reduced, suppress the water return pipeline scale formation simultaneously.
CO
2after passing into steel slag hot disintegrating water, the pH of backwater and CO
2intake forms the nonlinear dependence relation, by CO
2intake is as the characterization parameter of reaction process, and by the pH pH-value determination pH device 7 arranged, its result directly feeds back to the flue gas flow measuring apparatus, and settling tank entrance backwater pH is controlled at 7.8-8.0.
2, backwater enters settling tank, and after precipitation occurs large particulate matter, the supernatant liquid overflow enters just water purifying tank 11.In first water purifying tank 11 bottoms, the alkali lye input tube is set, allocates 30% Na by alkali lye gauge 10 into
2cO
3basic solution, the pH value of control backwater, make Ca (HCO in backwater
3)
2, Mg (HCO
3)
2react:
Ca(HCO
3)
2→CaCO
3↓+ CO
2+H
2O
Mg(HCO
3)
2→CaCO
3↓+ CO
2+H
2O
Form CaCO
3, MgCO
3flocculation sediment, remove descale and suspended particle by flocculation sediment, reduces the total hardness of backwater, is purified vexed slag backwater.
By being located at the just pH pH-value determination pH device 7 on water purifying tank 11 tops, result is directly fed back to alkali lye gauge 10, make just water purifying tank 11 outlet backwater pH be controlled at 10-10.2.
3, backwater enters water purifying tank 12 by first water purifying tank 11 overflows again.
4, purify vexed slag backwater cooling through cooling tower 15, after supplementing new water as vexed slag spray water.
Backwater water quality contrast before and after art breading of the present invention is in Table 2.
Backwater water quality contrast table before and after table 2 embodiment 1 processes
| The backwater type | The pH value | Total hardness mg/L -1 | Total alkalinity mg/L -1 |
| Vexed slag backwater | 11.85 | 630 | 956.03 |
| Backwater after purifying | 9.98 | 65.31 | 79.30 |
Embodiment 2:
The vexed backwater treatment process of a kind of converter slag heat, its concrete steps:
1, pass into the flue gas after gas-fired by flue gas pressurizing point 5 boring aeration devices 3 to the backwater in steel slag hot disintegrating technique.
Flue gas is the mixed gas formation of fully burning, and its main component is in Table 3.
Table 3 embodiment 2 smoke components tables
| Smoke components | CO 2 | CO | N 2 | O 2 | H 2O | Other |
| Volume percent content % | 12.45 | 0.0004 | 70.86 | 2.26 | 14.40 | 0.0296 |
Return water pipe after passing into flue gas arranges pH pH-value determination pH device, and its result directly feeds back to the flue gas flow measuring apparatus, and settling tank entrance backwater pH is controlled at 7.0～8.3.
2, backwater enters settling tank, and after precipitation occurs large particulate matter, the supernatant liquid overflow enters just pump sump.In first water purifying tank bottom, the alkali lye input tube is set, allocates 18% lime slurry into, by controlling the pH value of backwater, make the Ca (HCO in backwater
3)
2, Mg (HCO
3)
2decomposition reaction occurs, and produces CaCO
3, MgCO
3flocculation sediment, remove descale and suspended particle by flocculation sediment, reduced the total hardness of backwater, is purified vexed slag backwater.
In first water purifying tank middle and upper part, pH pH-value determination pH device is set, its result directly feeds back to the alkali lye measuring apparatus, and first water purifying tank outlet backwater pH is controlled at 10.0～10.2.
3, backwater enters water purifying tank by first pump sump overflow again.
4, purify vexed slag backwater cooling through cooling tower, after supplementing new water as vexed slag spray water.
Backwater water quality contrast before and after art breading of the present invention is in Table 4.
Backwater water quality contrast table before and after table 4 embodiment 2 processes
| The backwater type | The pH value | Total hard mg/L -1 | Total alkalinity mg/L -1 |
| Vexed slag backwater | 12.02 | 590.05 | 890.34 |
| Backwater after purifying | 10.01 | 58.72 | 82.03 |
Claims (4)
1. the vexed backwater treating device of converter slag heat, comprise vexed slag bath, vexed pulp water return water pipe, horizontal sedimentation tank, first water purifying tank, water purifying tank, processing water return water pipe, cooling tower, new water pipe and cold rinse bank, it is characterized in that, set up aerator, flue gas air-supply duct, flue gas pressurizing point, flue gas gauge, pH pH-value determination pH device, alkali lye mixing tank and alkali lye gauge; One aerator and pH value tester are installed on the vexed pulp water return water pipe be connected with horizontal sedimentation tank at vexed slag bath, and aerator is connected with the flue gas pressurizing point with the flue gas gauge by pipe connecting, and flue gas pressurizing point opposite side connects the flue gas air-supply duct; Be connected with alkali lye gauge and alkali lye mixing tank in first water purifying tank one side be connected with horizontal sedimentation tank, the alkali lye gauge is connected with the pH pH-value determination pH device in being located at first water purifying tank.
2. an application rights requires the method for the vexed backwater treating device of 1 described converter slag heat, it is characterized in that, concrete steps are:
(1), by flue gas pressurizing point and aerator to the flue gas passed in the backwater of steel slag hot disintegrating after gas-fired, make CO in flue gas
2after reacting with the free CaO in backwater, free MgO, generate Ca (HCO
3)
2, Mg (HCO
3)
2;
CO
2after passing into steel slag hot disintegrating water, the pH of backwater and CO
2intake forms the nonlinear dependence relation, by CO
2intake, as the characterization parameter of reaction process, is controlled the degree of carrying out of above reaction by the flue gas flow feedback signal, the span of control of its pH value is 6.5～8.5;
(2), backwater enters settling tank, after precipitation occurs large particulate matter, the supernatant liquid overflow enters just water purifying tank;
(3), by the alkali lye mixing tank, by the alkali lye gauge, in first water purifying tank, pass into alkali lye, improve the pH value of backwater, make Ca (HCO in backwater
3)
2, Mg (HCO
3)
2react, form CaCO
3, MgCO
3flocculation sediment, its supernatant liquid overflow enters water purifying tank;
By the pH value of flux of alkaline liquor feedback control backwater, its span of control is 9.5～10.5;
(4), that the vexed slag backwater of the purification in water purifying tank is passed into to cooling tower is cooling, after supplementing new water as vexed slag spray water.
3. the vexed backwater treatment process of converter slag heat according to claim 2, is characterized in that, described flue gas is the flue gas after blast furnace gas, coal gas of converter, coke-oven gas, mixed gas fully burn, its CO
2content is 10%～25%, CO≤0.2%, N
2content is 50%～70%, O
2content is 0～5%, H
2o content is 0～17%.
4. the vexed backwater treatment process of converter slag heat according to claim 2, is characterized in that, described alkali lye is Na
2cO
3, Ca (OH)
2etc. alkaline mixed solution, Na wherein
2cO
3the concentration range of mixing solutions is 10%～50%, Ca (OH)
2the concentration range of mixing solutions is 5%～22%.
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|---|---|---|---|
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|---|---|---|---|
| CN2013104014418A CN103449597A (en) | 2013-09-05 | 2013-09-05 | Hot stifle backwater treatment device and method of converter slag |
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ID=49732499
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106180121A (en) * | 2016-07-06 | 2016-12-07 | 洪昆喨 | A kind of processing method of converter stone waste material |
| CN106337098A (en) * | 2016-09-19 | 2017-01-18 | 石横特钢集团有限公司 | Method for steel slag hot stewing through concentrated water |
| CN107596780A (en) * | 2017-10-17 | 2018-01-19 | 中冶节能环保有限责任公司 | A kind of closed circuit water supply process system for slag processing |
| CN111500803A (en) * | 2020-05-29 | 2020-08-07 | 中冶建筑研究总院有限公司 | Hot-disintegrating treatment device and method for recycling strong brine in steel slag |
| CN112062354A (en) * | 2020-09-25 | 2020-12-11 | 湖南华菱湘潭钢铁有限公司 | Method for reducing hardness of dust removal water of converter flue gas |
| CN114291936A (en) * | 2022-01-13 | 2022-04-08 | 中冶南方工程技术有限公司 | Converter hot-stewing slag wastewater treatment system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7931809B2 (en) * | 2007-06-28 | 2011-04-26 | Calera Corporation | Desalination methods and systems that include carbonate compound precipitation |
| CN102432122A (en) * | 2011-11-01 | 2012-05-02 | 中冶建筑研究总院有限公司 | Method for treating circulating water |
| CN102534072A (en) * | 2010-12-11 | 2012-07-04 | 鞍山钢铁集团公司 | Method for utilizing disintegrating slag backwater waste heat in steel slag hot disintegrating process, and device thereof |
| CN102690905A (en) * | 2011-03-21 | 2012-09-26 | 鞍山钢铁集团公司 | Short-process slag stewing water returning technology |
| CN203474520U (en) * | 2013-09-05 | 2014-03-12 | 鞍钢股份有限公司 | Converter slag disintegration backwater treatment device |
-
2013
- 2013-09-05 CN CN2013104014418A patent/CN103449597A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7931809B2 (en) * | 2007-06-28 | 2011-04-26 | Calera Corporation | Desalination methods and systems that include carbonate compound precipitation |
| CN102534072A (en) * | 2010-12-11 | 2012-07-04 | 鞍山钢铁集团公司 | Method for utilizing disintegrating slag backwater waste heat in steel slag hot disintegrating process, and device thereof |
| CN102690905A (en) * | 2011-03-21 | 2012-09-26 | 鞍山钢铁集团公司 | Short-process slag stewing water returning technology |
| CN102432122A (en) * | 2011-11-01 | 2012-05-02 | 中冶建筑研究总院有限公司 | Method for treating circulating water |
| CN203474520U (en) * | 2013-09-05 | 2014-03-12 | 鞍钢股份有限公司 | Converter slag disintegration backwater treatment device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106180121A (en) * | 2016-07-06 | 2016-12-07 | 洪昆喨 | A kind of processing method of converter stone waste material |
| CN106180121B (en) * | 2016-07-06 | 2018-09-04 | 洪昆喨 | A kind of processing method of converter stone waste material |
| CN106337098A (en) * | 2016-09-19 | 2017-01-18 | 石横特钢集团有限公司 | Method for steel slag hot stewing through concentrated water |
| CN107596780A (en) * | 2017-10-17 | 2018-01-19 | 中冶节能环保有限责任公司 | A kind of closed circuit water supply process system for slag processing |
| CN111500803A (en) * | 2020-05-29 | 2020-08-07 | 中冶建筑研究总院有限公司 | Hot-disintegrating treatment device and method for recycling strong brine in steel slag |
| CN112062354A (en) * | 2020-09-25 | 2020-12-11 | 湖南华菱湘潭钢铁有限公司 | Method for reducing hardness of dust removal water of converter flue gas |
| CN114291936A (en) * | 2022-01-13 | 2022-04-08 | 中冶南方工程技术有限公司 | Converter hot-stewing slag wastewater treatment system |
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Inventor after: Wang Xiangfeng Inventor after: Yang Dazheng Inventor after: Ma Guangyu Inventor after: Xu Pengfei Inventor after: Liu Changpeng Inventor after: Zhang Dakui Inventor after: Hou Hongyu Inventor after: Yu Shujuan Inventor after: Geng Jishuang Inventor after: Qian Feng Inventor before: Wang Xiangfeng Inventor before: Yang Dazheng Inventor before: Ma Guangyu Inventor before: Xu Pengfei Inventor before: Liu Changpeng Inventor before: Zhang Dakui Inventor before: Hou Hongyu Inventor before: Yu Shujuan Inventor before: Geng Jishuang Inventor before: Qian Feng |
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Application publication date: 20131218 |