CN103846002A - Tantalum and niobium smelting waste gas treatment method - Google Patents
Tantalum and niobium smelting waste gas treatment method Download PDFInfo
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- CN103846002A CN103846002A CN201410121708.2A CN201410121708A CN103846002A CN 103846002 A CN103846002 A CN 103846002A CN 201410121708 A CN201410121708 A CN 201410121708A CN 103846002 A CN103846002 A CN 103846002A
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Abstract
The invention discloses a tantalum and niobium smelting waste gas treatment method. The tantalum and niobium smelting waste gas treatment method comprises the following steps: after exhausted waste gas is condensed and absorbed, the waste gas is introduced into a first-grade spraying equipment vertical type sprayer; acidic waste gas is absorbed by water sprayed out from the vertical type sprayer; the water absorbing the acidic waste gas is acidic and flows into an acidic water tank from a water discharging pipe to be subjected to water treatment with other types of wastewater; then the waste gas is introduced into a second-grade spraying equipment horizontal type sprayer; the horizontal type sprayer sprays alkaline water; the waste gas is blown into a third-grade spraying equipment overturning plate type sprayer by a fan; the overturning plate type sprayer sprays the alkaline water; and finally, the residual waste gas is introduced into a recycling tank to be neutralized by lime water and be recycled by the second-grade and third-grade sprayed alkaline water. The tantalum and niobium smelting waste gas treatment method has the advantages that an exhausting tower manner is changed into a manner of passing through a pipeline, spraying, carrying out acid-base neutralization and changing the gas into the water to carry out comprehensive treatment; the acidic gas of a plurality of exhausting points is intensively collected into the pipeline to be treated so that the emission problem of the acidic gas can be effectively solved and the clean production environment of enterprises is optimized.
Description
Technical field
The present invention relates to a kind of tantalum-niobium smelt exhaust gas treatment method.
Background technology
Operation before tantalum-niobium smelt enterprise produces: ore becomes-260 order powders to put into decomposer through ball milling, adds HF acid and H
2sO
4react, produce a large amount of sour gas.This gas reduces after concentration directly to the above airborne release of 15M through rinsing bath drip washing, but its acidity is still larger, under low or wind direction effect, can directly affect the growth of forest and crops at air pressure, and the while does not meet the national requirement to environmental protection yet.
Summary of the invention
The object of the present invention is to provide a kind of tantalum-niobium smelt exhaust gas treatment method, the method can be processed the waste gas that tantalum-niobium smelt produces preferably.
Technical scheme of the present invention is: a kind of tantalum-niobium smelt exhaust gas treatment method, its step: waste gas ejects condensation and absorbs the rear one-level sprinkling equipment vertical spray device that imports, the water of vertical spray device ejection absorbs acid waste gas, the water that absorbs acid waste gas is acid and flows into acid pond by drainpipe, treats that other waste water carries out water treatment together; Then waste gas is imported to secondary sprinkling equipment Horizental showering device, Horizental showering device spray alkaline water; By blower fan, waste gas is blown into three grades of sprinkling equipment turnover plate type spray throwers again, turnover plate type spray thrower spray alkaline water; Finally remaining waste gas is imported to recovery pond and neutralized by limewash, the alkaline water after secondary, three grades of sprays reclaims circulation.
The equipment of the method comprises condensation pond, condensation pond connects vertical spray device by pipeline, vertical spray device connects Horizental showering device by pipeline, Horizental showering device connects turnover plate type spray thrower by pipeline, pipeline and turnover plate type spray thrower junction are provided with blower fan, turnover plate type spray thrower connects recovery pond by pipeline, and recovery pond connects water pump by pipeline, and water pump is connected respectively Horizental showering device and turnover plate type spray thrower by threeway and pipeline.
The ammoniacal liquor of the water of horizontal circulated sprinkling device and turnover plate type spray thrower is carried by water pump, mineralization pressure.
The pipeline that is back to recovery pond is through measuring tank, and the porch that pipeline enters measuring tank is provided with air pressure bag, and measuring tank top is provided with jet pump, and the entrance of jet pump is located at the medium position of measuring tank, lower than the liquid level in measuring tank.
The invention has the advantages that: changed into via pipeline → spray → acid-base neutralization → becoming water mode by gas carries out the comprehensive regulation by exhaust tower mode, the sour gas centralized collection of multiple releases is processed in pipeline again, more efficiently solve the emission problem of sour gas, optimized the cleaner production environment of enterprise.
Accompanying drawing explanation
Fig. 1 is tantalum-niobium smelt exhaust gas treatment method process chart of the present invention;
Fig. 2 is tantalum-niobium smelt exhaust gas treatment method equipment connection schematic diagram of the present invention.
The specific embodiment
A kind of tantalum-niobium smelt exhaust gas treatment method, its step: waste gas ejects condensation and absorbs the rear one-level sprinkling equipment vertical spray device that imports, the water of vertical spray device ejection absorbs acid waste gas, the water that absorbs acid waste gas is acid and flows into acid pond by drainpipe, treats that other waste water carries out water treatment together; Then waste gas is imported to secondary sprinkling equipment Horizental showering device, Horizental showering device spray alkaline water; By blower fan, waste gas is blown into three grades of sprinkling equipment turnover plate type spray throwers again, turnover plate type spray thrower spray alkaline water; Finally remaining waste gas is imported to recovery pond and neutralized by limewash, the alkaline water after secondary, three grades of sprays reclaims circulation.This routine neutral and alkali hydromining ammoniacal liquor.
A kind of tantalum-niobium smelt waste gas pollution control and treatment equipment comprises condensation pond 1, condensation pond 1 connects vertical spray device 2 by pipeline, vertical spray device 2 connects Horizental showering device 3 by pipeline, Horizental showering device 3 connects turnover plate type spray thrower 4 by pipeline, pipeline and turnover plate type spray thrower 4 junctions are provided with blower fan 5, and turnover plate type spray thrower 4 connects recovery pond by pipeline, and recovery pond connects water pump by pipeline, recovery pond is connected with workshop, and the ammoniacal liquor in recovery pond 6 is to workshop and recycle.
Water pump is connected respectively Horizental showering device 3 and turnover plate type spray thrower 4 by threeway and pipeline, and the ammoniacal liquor of the water of horizontal circulated sprinkling device 3 and turnover plate type spray thrower 4 is carried by water pump, mineralization pressure.Connect the pipeline of recovery pond through measuring tank 6, the porch that pipeline enters measuring tank 6 is provided with air pressure bag 7, and measuring tank 6 tops are provided with jet pump 8, and the entrance of jet pump 8 is located at the medium position of measuring tank 6, lower than the liquid level in measuring tank.Air pressure bag 7 is connected motor 9 with jet pump 8 by electric wire.By the water that enters measuring tank 8 by supreme pressure mode, gas is fully dissolved in water, gas is filled by jet pump input in the measuring tank of Natural Water, after being alkaline water, enter circulating water pool.
Claims (4)
1. a tantalum-niobium smelt exhaust gas treatment method, its step: waste gas ejects condensation and absorbs the rear one-level sprinkling equipment vertical spray device that imports, the water of vertical spray device ejection absorbs acid waste gas, the water that absorbs acid waste gas is acid and flows into acid pond by drainpipe, treats that other waste water carries out water treatment together; Then waste gas is imported to secondary sprinkling equipment Horizental showering device, Horizental showering device spray alkaline water; By blower fan, waste gas is blown into three grades of sprinkling equipment turnover plate type spray throwers again, turnover plate type spray thrower spray alkaline water; Finally remaining waste gas is imported to recovery pond and neutralized by limewash, the alkaline water after secondary, three grades of sprays reclaims circulation.
2. tantalum-niobium smelt exhaust gas treatment method according to claim 1, it is characterized in that: the equipment of the method comprises condensation pond, condensation pond connects vertical spray device by pipeline, vertical spray device connects Horizental showering device by pipeline, Horizental showering device connects turnover plate type spray thrower by pipeline, pipeline and turnover plate type spray thrower junction are provided with blower fan, turnover plate type spray thrower connects recovery pond by pipeline, recovery pond connects water pump by pipeline, and water pump is connected respectively Horizental showering device and turnover plate type spray thrower by threeway and pipeline.
3. tantalum-niobium smelt exhaust gas treatment method according to claim 1, is characterized in that: the ammoniacal liquor of the water of horizontal circulated sprinkling device and turnover plate type spray thrower is carried by water pump, mineralization pressure.
4. tantalum-niobium smelt exhaust gas treatment method according to claim 2, it is characterized in that: be back to the pipeline of recovery pond through measuring tank, the porch that pipeline enters measuring tank is provided with air pressure bag, measuring tank top is provided with jet pump, and the entrance of jet pump is located at the medium position of measuring tank, lower than the liquid level in measuring tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410121708.2A CN103846002A (en) | 2014-03-28 | 2014-03-28 | Tantalum and niobium smelting waste gas treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410121708.2A CN103846002A (en) | 2014-03-28 | 2014-03-28 | Tantalum and niobium smelting waste gas treatment method |
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| CN103846002A true CN103846002A (en) | 2014-06-11 |
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| CN201410121708.2A Pending CN103846002A (en) | 2014-03-28 | 2014-03-28 | Tantalum and niobium smelting waste gas treatment method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108686483A (en) * | 2018-08-03 | 2018-10-23 | 丹阳市腾黄钢管镀锌有限责任公司 | A kind of acid mist processing equipment that efficient low-consume is Ke Xunhuanliyong |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1163841A (en) * | 1997-08-20 | 1999-03-05 | Daido Steel Co Ltd | Method for operating scrap melting furnace |
| CN101259364A (en) * | 2008-04-16 | 2008-09-10 | 中冶华天工程技术有限公司 | Wet desulphurization technique for sintered flue gas |
| CN102247708A (en) * | 2011-07-19 | 2011-11-23 | 北京北科环境工程有限公司 | Process for treating tail gas of rare earth mineral powder and concentrated sulphuric acid roasting process |
-
2014
- 2014-03-28 CN CN201410121708.2A patent/CN103846002A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1163841A (en) * | 1997-08-20 | 1999-03-05 | Daido Steel Co Ltd | Method for operating scrap melting furnace |
| CN101259364A (en) * | 2008-04-16 | 2008-09-10 | 中冶华天工程技术有限公司 | Wet desulphurization technique for sintered flue gas |
| CN102247708A (en) * | 2011-07-19 | 2011-11-23 | 北京北科环境工程有限公司 | Process for treating tail gas of rare earth mineral powder and concentrated sulphuric acid roasting process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108686483A (en) * | 2018-08-03 | 2018-10-23 | 丹阳市腾黄钢管镀锌有限责任公司 | A kind of acid mist processing equipment that efficient low-consume is Ke Xunhuanliyong |
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Application publication date: 20140611 |