CN102921227A - Waste acid treatment device and waste acid treatment method - Google Patents
Waste acid treatment device and waste acid treatment method Download PDFInfo
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- CN102921227A CN102921227A CN2012104485002A CN201210448500A CN102921227A CN 102921227 A CN102921227 A CN 102921227A CN 2012104485002 A CN2012104485002 A CN 2012104485002A CN 201210448500 A CN201210448500 A CN 201210448500A CN 102921227 A CN102921227 A CN 102921227A
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- filter
- waste acid
- storage tank
- acid
- acid treatment
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- 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
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Abstract
The invention discloses a waste acid treatment device and a waste acid treatment method. The waste acid treatment device comprises a waste acid storage tank, a solution feed pump, a tubular filter, a gas storage tank, an acid liquor storage tank and a dreg slurry tank. The waste acid treatment method includes the following steps: step a, waste acid enters the tubular filter after passing through the solution feed pump; step b, the waste acid is filtered from outside to inside when passing through a filter element of the tubular filter, and clear liquid flows into the acid liquor storage tank through an inner pipeline; and step c, when set filtration time is due or treatment of the waste acid is over, filtration is stopped, gas passes through the filter element reversely from a clear liquid outlet after passing through the gas storage tank, and a filter cake on the filter element is blown off reversely to be discharged into the dreg slurry tank through a dreg discharge port. Under the principle of not changing the composition of acid liquor, the waste acid treatment device is improved and strengthened in allusion to defects and shortcomings existing in current waste acid treatment devices. By means of optimizing the treating technology of existing devices, the whole set of the waste acid treatment device is good in treatment efficiency and high in degree of automation, and achieves totally-enclosed operation without discharge of wastewater.
Description
Technical field
The present invention relates to Waste acid treating device and method in a kind of wet type copper smelting industry earth of positive pole removal process.
Background technology
Along with Copper Ores exploitation taste descends year by year, difficult ore increases and the common concern of environmental pollution that sulfur dioxide is caused, makes people give very large concern to wet type copper smelting.Wet type copper smelting is to adopt various leaching means to extract copper from Copper Ores or copper concentrate, and main process comprises the operations such as leaching, purification, extraction.Wet type copper smelting can be processed low-grade copper, has enlarged the scope of utilizing of copper resource, and is environmentally friendly.The formed earth of positive pole is the main source of selenium and tellurium in the wet type copper smelting process.The earth of positive pole does not dissolve in the refined copper process, owing to containing noble metal in the earth of positive pole, needs regular recycling.Hydrochloric acid is as the extractant commonly used of silver recovery, if directly the emission treatment difficulty is higher after using, and serious waste of resources.At present, adopt filter press that the spent acid after processing is recycled, automaticity is not high, cleans difficulty, and the acid solution volatilization is larger on operating personnel's impact.
Summary of the invention
A kind of automaticity is high, Waste acid treating device and the method for the high on-line cleaning of spent acid reclamation rate but the purpose of this invention is to provide.
To achieve these goals, technical scheme of the present invention is as follows:
A kind of Waste acid treating device comprises spent acid storage tank, solution feed pump, tubular filter, gas reservoir, acid solution storage tank, slag slurry tank.The outlet of described spent acid storage tank connects the entrance of solution feed pump; The inlet of the outlet connecting pipe formula filter of described solution feed pump; The top gas entrance of the outlet connecting pipe formula filter of described gas reservoir; The slag-drip opening of described tubular filter connects the entrance of slag slurry tank; The purified liquor outlet of described tubular filter connects the entrance of acid solution storage tank.
A kind of useless acid-treated method may further comprise the steps:
Step a, spent acid enters tubular filter through solution feed pump, fills to purified liquor outlet pipeline height;
Step b, spent acid filters from outside to inside through the tubular filter filter element, and the impurity in the spent acid is intercepted at filter element surface and forms filter cake, and acid solution flows into the acid solution storage tank through filter purified liquor outlet pipeline;
Step c after reaching setting filtration time or spent acid processing end, stops to filter, and gas oppositely passes through filter element through gas reservoir from purified liquor outlet, with the reverse stripping of the filter cake on the filter element, enters slag slurry tank through slag-drip opening.
The present invention is not changing the acid solution composition in principle, and the defective that exists for present Waste acid treating device and weakness are improved and strengthened, by optimizing the treatment process of existing apparatus, the package unit good treatment efficiency, automaticity is high, totally-enclosed operation, non-wastewater discharge.
Description of drawings
The invention will be further described below in conjunction with the drawings and specific embodiments.
Fig. 1 is the process chart of Waste acid treating device of the present invention.
The specific embodiment
As shown in Figure 1, specific embodiments of the invention, mainly may further comprise the steps: waste hydrochloric acid is full of tubular filter through solution feed pump, element filters from outside to inside after filtration, 10 microns of filtering accuracies, impurity is intercepted at filter element surface and forms filter cake, acid solution flows into the acid solution storage tank through purified liquor outlet, when reaching setting-up time 2 hours, stop this moment filtering, oppositely pass into the 0.2MPaG Compressed Gas and carry out blowback, filter cake comes off from filter element surface under the effect of blowback tension force, enters slag slurry tank through slag-drip opening.
Claims (2)
1. a Waste acid treating device comprises spent acid storage tank, solution feed pump, tubular filter, gas reservoir, acid solution storage tank, slag slurry tank;
The outlet of described spent acid storage tank connects the entrance of solution feed pump; The inlet of the outlet connecting pipe formula filter of described solution feed pump; The top gas entrance of the outlet connecting pipe formula filter of described gas reservoir; The slag-drip opening of described tubular filter connects the entrance of slag slurry tank; The purified liquor outlet of described tubular filter connects the entrance of acid solution storage tank.
2. useless acid-treated method may further comprise the steps:
Step a, spent acid enters tubular filter through solution feed pump, fills to purified liquor outlet pipeline height;
Step b, spent acid filters from outside to inside through the tubular filter filter element, and the impurity in the spent acid is intercepted at filter element surface and forms filter cake, and acid solution flows into the acid solution storage tank through filter purified liquor outlet pipeline;
Step c after reaching setting filtration time or spent acid processing end, stops to filter, and gas oppositely passes through filter element through gas reservoir from purified liquor outlet, with the reverse stripping of the filter cake on the filter element, enters slag slurry tank through slag-drip opening;
The present invention is not changing the acid solution composition in principle, and the defective that exists for present Waste acid treating device and weakness are improved and strengthened, by optimizing the treatment process of existing apparatus, the package unit good treatment efficiency, automaticity is high, totally-enclosed operation, non-wastewater discharge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104485002A CN102921227A (en) | 2012-11-09 | 2012-11-09 | Waste acid treatment device and waste acid treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104485002A CN102921227A (en) | 2012-11-09 | 2012-11-09 | Waste acid treatment device and waste acid treatment method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102921227A true CN102921227A (en) | 2013-02-13 |
Family
ID=47636238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104485002A Pending CN102921227A (en) | 2012-11-09 | 2012-11-09 | Waste acid treatment device and waste acid treatment method |
Country Status (1)
| Country | Link |
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| CN (1) | CN102921227A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105084316A (en) * | 2015-08-17 | 2015-11-25 | 深圳市海德能水处理设备有限公司 | HF (hydrofluoric acid) recovery system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1088524A (en) * | 1965-01-09 | 1967-10-25 | Walter Mayer | Method for the fine filtration of suspensions, and more particularly of the turbid juices obtained in sugar factories, and apparatus for carrying out the method |
| CN1562439A (en) * | 2004-04-08 | 2005-01-12 | 宋志骥 | Technique of accurate micropores film for filterning salt water in use for making alkali |
| US20070045173A1 (en) * | 2005-08-30 | 2007-03-01 | Bha Technologies, Inc. | Candle filter assembly and candle filter element |
| CN101934163A (en) * | 2010-08-16 | 2011-01-05 | 清华大学 | Method and device for backwashing filter by using liquid assisted with gas |
| CN202173829U (en) * | 2011-06-23 | 2012-03-28 | 李大伟 | Filter |
| CN202516386U (en) * | 2012-03-08 | 2012-11-07 | 启东混合器厂有限公司 | Single cylinder tube nest type back wash impurity remover |
-
2012
- 2012-11-09 CN CN2012104485002A patent/CN102921227A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1088524A (en) * | 1965-01-09 | 1967-10-25 | Walter Mayer | Method for the fine filtration of suspensions, and more particularly of the turbid juices obtained in sugar factories, and apparatus for carrying out the method |
| CN1562439A (en) * | 2004-04-08 | 2005-01-12 | 宋志骥 | Technique of accurate micropores film for filterning salt water in use for making alkali |
| US20070045173A1 (en) * | 2005-08-30 | 2007-03-01 | Bha Technologies, Inc. | Candle filter assembly and candle filter element |
| CN101934163A (en) * | 2010-08-16 | 2011-01-05 | 清华大学 | Method and device for backwashing filter by using liquid assisted with gas |
| CN202173829U (en) * | 2011-06-23 | 2012-03-28 | 李大伟 | Filter |
| CN202516386U (en) * | 2012-03-08 | 2012-11-07 | 启东混合器厂有限公司 | Single cylinder tube nest type back wash impurity remover |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105084316A (en) * | 2015-08-17 | 2015-11-25 | 深圳市海德能水处理设备有限公司 | HF (hydrofluoric acid) recovery system |
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| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130213 |