CN105084316A - HF (hydrofluoric acid) recovery system - Google Patents
HF (hydrofluoric acid) recovery system Download PDFInfo
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- CN105084316A CN105084316A CN201510503332.6A CN201510503332A CN105084316A CN 105084316 A CN105084316 A CN 105084316A CN 201510503332 A CN201510503332 A CN 201510503332A CN 105084316 A CN105084316 A CN 105084316A
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- acid
- bucket
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- recovery system
- recycled
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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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The invention discloses an HF (hydrofluoric acid) recovery system. The recovery system comprises a to-be-recovered bucket, an acid filter press, a recovered acid bucket, an experimental concentrated acid bucket and a tube micro-filtration membrane, wherein the to-be-recovered bucket is used for containing untreated acid liquor to be recovered; the acid filter press is connected with the to-be-recovered bucket by an acid pressure pump and is used for receiving the acid liquor to be recovered from the acid pressure pump and increasing the pressure to dialyse HF in the acid liquor to be recovered; the recovered acid bucket is used for receiving non-HF waste acid liquor output from the acid filter press; the experimental concentrated acid bucket is used for receiving HF output from the acid filter press; the recovered acid bucket and the experimental concentrated acid bucket are connected with the acid filter press by a first pneumatic pump; the tube micro-filtration membrane is connected with the experimental concentrated acid bucket by a second pneumatic pump and is used for filtering impurities of HF; the tube micro-filtration membrane and the experimental concentrated acid bucket are also connected with the recovered acid bucket by a first valve. The HF recovery system can be used for effectively separating HF and waste residues in the waste acid and recovering high-purity HF and also has the effect of improving the recovery treatment efficiency.
Description
Technical field
The present invention relates to material recycle technical field, in particular a kind of HF recovery system.
Background technology
Having HF(and hydrofluoric acid) in the industry that uses, HF will inevitably produce discarded HF, its concentration or high or low after using, and these discarded HF are then danger wastes, if directly discharge will cause very big pollution to environment.If discarded HF is delivered to sewage works process, processing costs cost can be produced on the one hand, also need to do secondary treatment to the waste residue that process spent acid produces on the other hand, substantially increase processing cost, reduce processing efficiency.
In prior art, general employing deep bed filter or adopt plate-and-frame filter press solid-liquid separation is carried out to spent acid, if this kind of technique is normally run can reach preliminary treatment effect, but its defect is as follows: one is that filtering accuracy is not high, and impact recovery HF re-uses effect; If two is occur filter bag or filter screen breakage, the direct contaminate subsequent collecting device of the particulate matter in spent acid, even pollutes use equipment.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of HF recovery system, to be intended to solve in prior art by deep bed filter or to adopt plate-and-frame filter press to carry out solid-liquid separation filtering accuracy to spent acid not high, and the easy contaminated equipment of particulate matter after filter bag or filter screen breakage in spent acid, and HF recycling cost is high, the defect of inefficiency.
Technical scheme of the present invention is as follows:
A kind of HF recovery system, wherein, comprising:
For holding the bucket to be recycled of undressed acid solution to be recycled;
Be connected with described bucket to be recycled by sour force (forcing) pump, for receiving acid solution to be recycled and increase the acid fracturing filter that pressure makes dialysis HF in acid solution to be recycled from sour force (forcing) pump;
For receiving in acid fracturing filter the recovered acid bucket of the discarded acid solution of the non-HF exported, for receiving the experiment gelled acid bucket of the HF exported in acid fracturing filter, described recovered acid bucket and described experiment gelled acid bucket are all connected with described acid fracturing filter by the first pneumatic pump;
By the second pneumatic pump and described experiment gelled acid bucket, for filtering the tube type filter membrance of the impurity of HF;
Described tube type filter membrance and described experiment gelled acid bucket are also connected with described recovered acid bucket by the first valve.
Described HF recovery system, wherein, described acid fracturing filter is the plate-and-frame filter press driven by pneumatic diaphragm pump.
Described HF recovery system, wherein, the material of described tube type filter membrance is PVDF, and PVDF external sheath PVDF or PE.
Described HF recovery system, wherein, described tube type filter membrance is driven by pneumatic diaphragm pump.
Described HF recovery system, wherein, described experiment gelled acid bucket is also connected with described bucket to be recycled by the second valve.
Described HF recovery system, wherein, described tube type filter membrance is also connected with described bucket to be recycled by the 3rd valve.
HF recovery system provided by the present invention, comprises the bucket to be recycled for holding undressed acid solution to be recycled; Be connected with described bucket to be recycled by sour force (forcing) pump, for receiving acid solution to be recycled and increase the acid fracturing filter that pressure makes dialysis HF in acid solution to be recycled from sour force (forcing) pump; For receiving in acid fracturing filter the recovered acid bucket of the discarded acid solution of the non-HF exported, for receiving the experiment gelled acid bucket of the HF exported in acid fracturing filter, described recovered acid bucket and described experiment gelled acid bucket are all connected with described acid fracturing filter by the first pneumatic pump; By the second pneumatic pump and described experiment gelled acid bucket, for filtering the tube type filter membrance of the impurity of HF; Described tube type filter membrance and described experiment gelled acid bucket are also connected with described recovered acid bucket by the first valve.HF recovery system of the present invention effectively can be separated HF in spent acid and waste residue, reclaims highly purified HF, improves recycling efficiency simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of the recovery system of HF described in the present invention preferred embodiment.
Embodiment
The invention provides a kind of HF recovery system, for making object of the present invention, technical scheme and effect clearly, clearly, referring to accompanying drawing examples, the present invention is described in more detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1, HF recovery system provided by the invention, comprising:
For holding the bucket to be recycled 10 of undressed acid solution to be recycled;
Be connected with described bucket 10 to be recycled by sour force (forcing) pump 20, for receiving acid solution to be recycled and increase the acid fracturing filter 30 that pressure makes dialysis HF in acid solution to be recycled from sour force (forcing) pump 20;
For receiving the recovered acid bucket 40 of the discarded acid solution of the non-HF exported in acid fracturing filter 30, for receiving the experiment gelled acid bucket 50 of the HF exported in acid fracturing filter 30, described recovered acid bucket 40 and described experiment gelled acid bucket 50 are all connected with described acid fracturing filter by the first pneumatic pump 61;
Be connected with described experiment gelled acid bucket by the second pneumatic pump 62, for filtering the tube type filter membrance 70 of the impurity of HF;
Described tube type filter membrance 70 and described experiment gelled acid bucket 50 are also connected with described recovered acid bucket 40 by the first valve 81.
In embodiments of the invention, when carrying out HF and reclaiming, through following process:
1) spent acid containing HF of tape handling is first placed in bucket 10 to be recycled;
2) containing the spent acid of HF through the pressure-increasing unit of peracid topping-up pump 20 in acid fracturing filter 30;
3) in acid fracturing filter 30, increase pressure, make the solid-liquid separation in spent acid, also namely dialysis goes out liquid HF and solid-state waste residue;
4) the first pneumatic pump 61 is opened, first make liquid HF flow to experiment gelled acid bucket 50, then make waste residue enter recovered acid bucket 40;
5) after recovered acid bucket 40 pairs of waste residues process, product is disposed to waste residue storing device;
6) in laboratory gelled acid bucket 50 to HF is concentrated process after, open the second pneumatic pump 62 concentrated HF is delivered to tube type filter membrance 70 filters, obtain highly purified HF, and by filtering, the waste residue that obtains is again logical to be opened the first valve 81 and is disposed to recovered acid bucket 40, is disposed to waste residue storing device after row relax of going forward side by side.
Visible, HF recovery system of the present invention, is effectively separated HF with waste residue, is extracted the high purity HF of recoverable, and avoids the waste residue containing contaminated equipment in HF.Meanwhile, the efficiency of recycling is also improved.
Further, described acid fracturing filter 30 is the plate-and-frame filter press driven by pneumatic diaphragm pump.During concrete enforcement, described acid fracturing filter 30 need seal completely, and corrosion-resistant.
Further, the material of described tube type filter membrance 70 is PVDF, and PVDF external sheath PVDF or PE, and described tube type filter membrance 70 is driven by pneumatic diaphragm pump.
Further, described experiment gelled acid bucket 50 is also connected with described bucket 10 to be recycled by the second valve 82; Described tube type filter membrance 70 is also connected with described bucket 10 to be recycled by the 3rd valve 83.
In sum, HF recovery system provided by the present invention, comprises the bucket to be recycled for holding undressed acid solution to be recycled; Be connected with described bucket to be recycled by sour force (forcing) pump, for receiving acid solution to be recycled and increase the acid fracturing filter that pressure makes dialysis HF in acid solution to be recycled from sour force (forcing) pump; For receiving in acid fracturing filter the recovered acid bucket of the discarded acid solution of the non-HF exported, for receiving the experiment gelled acid bucket of the HF exported in acid fracturing filter, described recovered acid bucket and described experiment gelled acid bucket are all connected with described acid fracturing filter by the first pneumatic pump; By the second pneumatic pump and described experiment gelled acid bucket, for filtering the tube type filter membrance of the impurity of HF; Described tube type filter membrance and described experiment gelled acid bucket are also connected with described recovered acid bucket by the first valve.HF recovery system of the present invention effectively can be separated HF in spent acid and waste residue, reclaims highly purified HF, improves recycling efficiency simultaneously.
Should be understood that, application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can be improved according to the above description or convert, and such as, all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (6)
1. a HF recovery system, is characterized in that, comprising:
For holding the bucket to be recycled of undressed acid solution to be recycled;
Be connected with described bucket to be recycled by sour force (forcing) pump, for receiving acid solution to be recycled and increase the acid fracturing filter that pressure makes dialysis HF in acid solution to be recycled from sour force (forcing) pump;
For receiving in acid fracturing filter the recovered acid bucket of the discarded acid solution of the non-HF exported, for receiving the experiment gelled acid bucket of the HF exported in acid fracturing filter, described recovered acid bucket and described experiment gelled acid bucket are all connected with described acid fracturing filter by the first pneumatic pump;
By the second pneumatic pump and described experiment gelled acid bucket, for filtering the tube type filter membrance of the impurity of HF;
Described tube type filter membrance and described experiment gelled acid bucket are also connected with described recovered acid bucket by the first valve.
2. HF recovery system according to claim 1, it is characterized in that, described acid fracturing filter is the plate-and-frame filter press driven by pneumatic diaphragm pump.
3. HF recovery system according to claim 1, it is characterized in that, the material of described tube type filter membrance is PVDF, and PVDF external sheath PVDF or PE.
4. HF recovery system according to claim 3, it is characterized in that, described tube type filter membrance is driven by pneumatic diaphragm pump.
5. HF recovery system according to claim 1, is characterized in that, described experiment gelled acid bucket is also connected with described bucket to be recycled by the second valve.
6. HF recovery system according to claim 1, is characterized in that, described tube type filter membrance is also connected with described bucket to be recycled by the 3rd valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510503332.6A CN105084316B (en) | 2015-08-17 | 2015-08-17 | A kind of HF recovery systems |
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| CN201510503332.6A CN105084316B (en) | 2015-08-17 | 2015-08-17 | A kind of HF recovery systems |
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| CN105084316A true CN105084316A (en) | 2015-11-25 |
| CN105084316B CN105084316B (en) | 2018-02-09 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107720698A (en) * | 2017-11-03 | 2018-02-23 | 深圳市纯水号水处理科技有限公司 | A kind of hydrofluoric acid recovery process |
| CN108751133A (en) * | 2018-07-02 | 2018-11-06 | 北京宝迪华禹科技发展有限公司 | A kind of technology for efficiently removing silicon recycling hydrofluoric acid |
| CN110468423A (en) * | 2019-08-07 | 2019-11-19 | 江苏斯德雷特通光光纤有限公司 | A kind of the HF remnant liquid recovering device and application method of pickler |
| CN112206554A (en) * | 2020-01-03 | 2021-01-12 | 第一环保（深圳）股份有限公司 | Upper and lower double-feeding double-pressing filter plate |
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| JPS6191003A (en) * | 1984-10-06 | 1986-05-09 | Tokuyama Soda Co Ltd | Method of recovering hydrofluoric acid |
| US4769180A (en) * | 1986-04-04 | 1988-09-06 | Doryokuro Kakunenryo Kaihatsu Jigyodan | Process for separately recovering uranium and hydrofluoric acid from waste liquor containing uranium and fluorine |
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| CN103159177A (en) * | 2011-12-14 | 2013-06-19 | 笹仓机械工程有限公司 | Method for treating hydrofluoric acid wastewater |
| CN104192805A (en) * | 2014-10-10 | 2014-12-10 | 上海清瑞环保科技有限公司 | Process for filtering and recycling hydrofluoric acid from etching machine production line |
| CN204039181U (en) * | 2014-09-02 | 2014-12-24 | 南京大学环境规划设计研究院有限公司 | A kind of fluoride wastewater treatment and fluorine-containing sludge resource utilization system |
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2015
- 2015-08-17 CN CN201510503332.6A patent/CN105084316B/en active Active
Patent Citations (6)
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| JPS6191003A (en) * | 1984-10-06 | 1986-05-09 | Tokuyama Soda Co Ltd | Method of recovering hydrofluoric acid |
| US4769180A (en) * | 1986-04-04 | 1988-09-06 | Doryokuro Kakunenryo Kaihatsu Jigyodan | Process for separately recovering uranium and hydrofluoric acid from waste liquor containing uranium and fluorine |
| CN103159177A (en) * | 2011-12-14 | 2013-06-19 | 笹仓机械工程有限公司 | Method for treating hydrofluoric acid wastewater |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107720698A (en) * | 2017-11-03 | 2018-02-23 | 深圳市纯水号水处理科技有限公司 | A kind of hydrofluoric acid recovery process |
| CN108751133A (en) * | 2018-07-02 | 2018-11-06 | 北京宝迪华禹科技发展有限公司 | A kind of technology for efficiently removing silicon recycling hydrofluoric acid |
| CN110468423A (en) * | 2019-08-07 | 2019-11-19 | 江苏斯德雷特通光光纤有限公司 | A kind of the HF remnant liquid recovering device and application method of pickler |
| CN110468423B (en) * | 2019-08-07 | 2021-10-22 | 江苏斯德雷特通光光纤有限公司 | HF residual liquid recovery device of pickling equipment and use method |
| CN112206554A (en) * | 2020-01-03 | 2021-01-12 | 第一环保（深圳）股份有限公司 | Upper and lower double-feeding double-pressing filter plate |
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| CN105084316B (en) | 2018-02-09 |
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Address after: 518034, 9 floor, Sunshine Golf tower, No. 7008 Shennan Avenue, Shenzhen, Guangdong, Futian District Applicant after: Shenzhen first environmental protection Limited by Share Ltd Address before: 518034, 9 floor, Sunshine Golf tower, No. 7008 Shennan Avenue, Shenzhen, Guangdong, Futian District Applicant before: SHENZHEN HDN WATER TREATMENT EQUIPMENT CO., LTD. |
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Address after: 518034, 9 floor, Sunshine Golf tower, No. 7008 Shennan Avenue, Shenzhen, Guangdong, Futian District Applicant after: First, environmental protection (Shenzhen) Limited by Share Ltd Address before: 518034, 9 floor, Sunshine Golf tower, No. 7008 Shennan Avenue, Shenzhen, Guangdong, Futian District Applicant before: Shenzhen first environmental protection Limited by Share Ltd |
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Address after: 518000, six, Guoxin Securities Building, 1012 Hongling Middle Road, Guiyuan Road, Luohu District, Shenzhen, Guangdong. Patentee after: First, environmental protection (Shenzhen) Limited by Share Ltd Address before: 518034, 9 floor, Sunshine Golf building, 7008 Shennan Road, Futian District, Shenzhen, Guangdong. Patentee before: First, environmental protection (Shenzhen) Limited by Share Ltd |
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