CN103570154A - System for reusing purified dilute acid - Google Patents
System for reusing purified dilute acid Download PDFInfo
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- CN103570154A CN103570154A CN201210281982.7A CN201210281982A CN103570154A CN 103570154 A CN103570154 A CN 103570154A CN 201210281982 A CN201210281982 A CN 201210281982A CN 103570154 A CN103570154 A CN 103570154A
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- dilute acid
- water supply
- diluted
- supply system
- acid
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Abstract
The invention relates to a system for reusing a purified dilute acid. The system comprises a purification circulating tank, a sedimentation tank, a filter press, a filtered liquid tank and a water supply system, wherein the dilute acid is produced when smelting flue gas is cooled and purified in the purification circulating tank, the dilute acid is neutralized with lime milk in the sedimentation tank and then subject to sedimentation, then the dilute acid is subject to filter pressing in the filter press to form a filter cake, and filtered liquid obtained by filter pressing in the filter press enters the filtered liquid tank; the anti-corrosive tower-free water supply system is additionally arranged behind the filtered liquid tank and used for enabling the filtered liquid after filter pressing to return into the purification circulating tank. The system for reusing the purified dilute acid, provided by the invention, can fully recycle the dilute acid after purification treatment, reduce the waste of resources and increase economic benefits of an enterprise.
Description
Technical field
The present invention relates to nonferrous metallurgy field, be specially a kind of purification diluted sulfric acid reclaiming system.
Background technology
In nonferrous metallurgy field, during flue gas during smelting process cooling and purifying, produce diluted acid, traditional method is that this part diluted acid vulcanizes removal of impurities, lime slurry neutralization to emission standard, emits.
Fig. 1 is purification section dilute acid pretreatment flow process of the prior art, flue gas during smelting produces diluted acid during cooling and purifying in decontamination cycle groove, described diluted acid carries out sedimentation in subsider He after lime slurry neutralization, enter afterwards press filtration in pressure filter and become filter cake, and the cleaner liquid leaching in pressure filter after filtration clear liquid groove discharge outward.
Purification section is when normal production, and the outer discharge capacity of diluted acid is 7-10m3 per hour, and the outer row of a large amount of diluted acids has brought certain operational difficulties to next procedure, and has wasted a large amount of water resourcess, and water resources cannot be recycled.
Summary of the invention
The object of the present invention is to provide a kind of purification diluted sulfric acid reclaiming system, to reduce the waste of resource, reduce processing cost simultaneously.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of purification diluted sulfric acid reclaiming system, comprise decontamination cycle groove, subsider, pressure filter, filtering liquid bath, it is characterized in that, also comprise a waterworks, flue gas during smelting produces diluted acid during cooling and purifying in decontamination cycle groove, described diluted acid carries out sedimentation in subsider He after lime slurry neutralization, enters afterwards press filtration in pressure filter and becomes filter cake, and the cleaner liquid being press-filtered out in pressure filter enters filtering liquid bath; In filtering liquid bath back, add a rot-resistant non-tower water supply system, allow the filtering after press filtration come back to decontamination cycle groove night; Described non-tower water supply system reduces the concentration of diluted acid for supplementing tap water, so just can not cause circulation fluid concentration saturated.
Further, described non-tower water supply system comprises a pump and a filling.
Purification diluted sulfric acid reclaiming system of the present invention, can fully recycle the diluted acid after purifying treatment, reduces wasting of resources ，Wei enterprise and increases economic benefit.
Accompanying drawing explanation
Fig. 1 is purification section dilute acid pretreatment flow process of the prior art.
Fig. 2 is purification section dilute acid pretreatment flow process of the present invention.
Embodiment
As shown in Figure 2, a kind of purification diluted sulfric acid reclaiming system, comprise decontamination cycle groove, subsider, pressure filter, filtering liquid bath, it is characterized in that, also comprise a waterworks, flue gas during smelting produces diluted acid during cooling and purifying in decontamination cycle groove, and described diluted acid carries out sedimentation in subsider He after lime slurry neutralization, enter afterwards press filtration in pressure filter and become filter cake, the cleaner liquid being press-filtered out in pressure filter enters filtering liquid bath; In filtering liquid bath back, add a rot-resistant non-tower water supply system, allow the filtering after press filtration come back to decontamination cycle groove night; Described non-tower water supply system reduces the concentration of diluted acid for supplementing tap water, so just can not cause circulation fluid concentration saturated.Described non-tower water supply system comprises a pump and a filling.
Claims (2)
1. a purification diluted sulfric acid reclaiming system, comprise decontamination cycle groove, subsider, pressure filter, filtering liquid bath, it is characterized in that, also comprise a waterworks, flue gas during smelting produces diluted acid during cooling and purifying in decontamination cycle groove, described diluted acid carries out sedimentation in subsider He after lime slurry neutralization, enters afterwards press filtration in pressure filter and becomes filter cake, and the cleaner liquid being press-filtered out in pressure filter enters filtering liquid bath; In filtering liquid bath back, add a rot-resistant non-tower water supply system, allow the filtering after press filtration come back to decontamination cycle groove night; Described non-tower water supply system reduces the concentration of diluted acid for supplementing tap water, so just can not cause circulation fluid concentration saturated.
2. purification diluted sulfric acid reclaiming system as claimed in claim 1, is characterized in that, described non-tower water supply system comprises a pump and a filling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210281982.7A CN103570154A (en) | 2012-08-09 | 2012-08-09 | System for reusing purified dilute acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210281982.7A CN103570154A (en) | 2012-08-09 | 2012-08-09 | System for reusing purified dilute acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103570154A true CN103570154A (en) | 2014-02-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210281982.7A Pending CN103570154A (en) | 2012-08-09 | 2012-08-09 | System for reusing purified dilute acid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103570154A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103566655A (en) * | 2012-08-10 | 2014-02-12 | 安阳市岷山有色金属有限责任公司 | Purified diluted acid recycling technological process |
| CN104261356A (en) * | 2014-09-09 | 2015-01-07 | 安徽省司尔特肥业股份有限公司 | Dilute acid purification technique |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11130437A (en) * | 1997-10-22 | 1999-05-18 | Furukawa Co Ltd | Treatment of waste acid |
| CN201543331U (en) * | 2009-11-16 | 2010-08-11 | 灵宝市金源矿业有限责任公司 | Smelting purification diluted-acid recycling system |
| CN102010082A (en) * | 2010-09-29 | 2011-04-13 | 南京梅山冶金发展有限公司 | Treatment method for recycling waste dilute sulfuric acid |
| CN201882908U (en) * | 2010-11-30 | 2011-06-29 | 东营方圆有色金属有限公司 | Device for condensing and purifying diluted acid by using afterheat of flue gas generated by smelting non-ferrous metal |
-
2012
- 2012-08-09 CN CN201210281982.7A patent/CN103570154A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11130437A (en) * | 1997-10-22 | 1999-05-18 | Furukawa Co Ltd | Treatment of waste acid |
| CN201543331U (en) * | 2009-11-16 | 2010-08-11 | 灵宝市金源矿业有限责任公司 | Smelting purification diluted-acid recycling system |
| CN102010082A (en) * | 2010-09-29 | 2011-04-13 | 南京梅山冶金发展有限公司 | Treatment method for recycling waste dilute sulfuric acid |
| CN201882908U (en) * | 2010-11-30 | 2011-06-29 | 东营方圆有色金属有限公司 | Device for condensing and purifying diluted acid by using afterheat of flue gas generated by smelting non-ferrous metal |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103566655A (en) * | 2012-08-10 | 2014-02-12 | 安阳市岷山有色金属有限责任公司 | Purified diluted acid recycling technological process |
| CN104261356A (en) * | 2014-09-09 | 2015-01-07 | 安徽省司尔特肥业股份有限公司 | Dilute acid purification technique |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140212 |