CN103721476B - Acid-containing wastewater recovery device and method for hydrochloric acid regeneration unit - Google Patents
Acid-containing wastewater recovery device and method for hydrochloric acid regeneration unit Download PDFInfo
- Publication number
- CN103721476B CN103721476B CN201310720276.2A CN201310720276A CN103721476B CN 103721476 B CN103721476 B CN 103721476B CN 201310720276 A CN201310720276 A CN 201310720276A CN 103721476 B CN103721476 B CN 103721476B
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- Prior art keywords
- acid
- filter
- melt pit
- acidproof
- grate
- Prior art date
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- 239000002253 acid Substances 0.000 title claims abstract description 37
- 239000002351 wastewater Substances 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000011084 recovery Methods 0.000 title claims description 5
- 238000007131 hydrochloric acid regeneration reaction Methods 0.000 title abstract 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 230000008929 regeneration Effects 0.000 claims abstract description 21
- 238000011069 regeneration method Methods 0.000 claims abstract description 21
- 238000001914 filtration Methods 0.000 claims abstract description 11
- 238000006386 neutralization reaction Methods 0.000 claims description 10
- 229920003023 plastic Polymers 0.000 claims description 10
- 239000004033 plastic Substances 0.000 claims description 10
- 238000011010 flushing procedure Methods 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000005245 sintering Methods 0.000 claims description 4
- 239000002699 waste material Substances 0.000 claims description 3
- 238000004064 recycling Methods 0.000 abstract description 3
- 230000003472 neutralizing effect Effects 0.000 abstract 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 1
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 101150054854 POU1F1 gene Proteins 0.000 description 9
- 241000370738 Chlorion Species 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000008237 rinsing water Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Filtration Of Liquid (AREA)
Abstract
The invention relates to a device and a method for recovering acid-containing wastewater of a hydrochloric acid regeneration unit, which comprises a pit, a pit pump and a ditch, wherein the pit pump is respectively connected with the pit and the regeneration unit, the ditch is communicated with the pit, the device also comprises a grate, an acid-resistant filter, a pipe fitting and a filter screen, 3 or more than 3 grates are uniformly distributed on the ditch close to the pit, the distance between the adjacent grates is 0.8-1.5m, the filter screen is arranged on the grate close to the pit, the outlet of the pit pump is connected with the acid-resistant filter through the pipe fitting, and the filtering precision of the acid-resistant filter is 50-80 mu m. The invention has the advantages that: the recycling of acid-containing water is realized, the discharge of hydrochloric acid is reduced, the pollution of chloride ions to the environment is reduced, and the consumption of new acid of the hydrochloric acid is reduced; the waste water is not discharged to the neutralizing station, so that the neutralizing station is in a stop state, and the environmental pollution is reduced.
Description
Technical field
The present invention relates to a kind of regeneration of hydrochloric acid unit acid-bearing wastewater retracting device and method.
Background technology
Regenerate in unit, the waste water that regeneration washing spray gun and cleaning ground and sampling drop also cleans the useless of filter
Sour water, containing for gelled acid pipeline emptying contains substantial amounts of hydrochloric acid in sour water, the antiaircraft gelled acid of preconcentrator, these waste water,
Collect, convergeed in melt pit through ditch, being discharged to neutralization station through sump pump is handled, the waste water after processing contain more chlorine from
Son causes the pollution of environment.And containing a large amount of impurity are contained in sour water, come difficult to cleaning tape, while the hydrochloric acid of this part can not
Increase that is effective to recycle, causing hydrochloric acid to consume, causes greatly increasing for energy cost.
The content of the invention
To overcome the deficiencies in the prior art, reclaim and fill it is an object of the invention to provide a kind of regeneration of hydrochloric acid unit acid-bearing wastewater
Put and method, reduce the discharge of hydrochloric acid, save the consumption of demineralized water and hydrochloric acid, reduce pollution of the chlorion to environment.
To achieve the above object, the present invention is achieved through the following technical solutions：
A kind of regeneration of hydrochloric acid unit acid-bearing wastewater retracting device, including melt pit, sump pump, ditch, sump pump respectively with ground
Hole, regeneration unit connection, ditch is communicated with melt pit, in addition to grate, acidproof filter, pipe fitting, screen pack, close to the water of melt pit
3 roads or 3 road above grates are evenly equipped with ditch, adjacent grate spacing is 0.8-1.5m, and the grate close to melt pit is provided with filtering
Net, melt pit pump discharge is connected with acidproof filter by pipe fitting, and the filtering accuracy of acidproof filter is 50-80 μm.
The housing of described acidproof filter is by the acidproof plastic productions of PPH, and filter core is to be formed by PP plastics through expanded sintering
Acidproof filter core.
Described screen pack is 30-50 mesh.
Uniform φ 4- φ 8 filter bores on described grate.
A kind of regeneration of hydrochloric acid unit acid-bearing wastewater recovery method, comprises the following steps：
1）The waste pipe between regeneration unit and neutralization station is closed first, then the outlet conduit of sump pump with it is resistance to
Sour filter inlet is connected with PPH pipelines, and finally acidproof filter outlet is connected on flushing water pot with PPH plastic conduits；
2）Ditch is sent to melt pit after the acid-bearing wastewater of collection is tentatively filtered through grate, when the height of the acid-bearing wastewater of melt pit
During more than 1.5 meters, start sump pump, acid-bearing wastewater by acidproof filter iron powder and filtering foreign tiny in waste water fall with
Afterwards, flushing water pot is entered to recycle；When the height of the acid-bearing wastewater of melt pit is less than 1.0 meters, sump pump shuts down, and rushes
The water of wash water tank is used as the absorption water on regeneration unit absorption tower, forms regenerated acid；Acidproof filter is once purged to reclaim therein
Iron powder.
Compared with prior art, the beneficial effects of the invention are as follows：
The recycling containing sour water is realized, the discharge of hydrochloric acid is reduced, pollution of the chlorion to environment is reduced, drops significantly
The low consumption of the eo-acid of hydrochloric acid；Because waste water is not discharged to neutralization station so that neutralization station, which is in dead status, reduces environment
Pollution；Due to the effective utilization of waste water, the increment of demineralized water is reduced, production cost is reduced.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
In figure：The acidproof filter 6- of 1- melt pit 2- grate 3- ditch 4- sump pumps 5- rinse water pot.
Embodiment
The present invention is described in detail with reference to Figure of description, it should be noted that the implementation of the present invention is not limited
In following embodiment.
See Fig. 1, a kind of regeneration of hydrochloric acid unit acid-bearing wastewater retracting device, including melt pit 1, sump pump 4, ditch 3, sump pump
4 are connected with melt pit 1, regeneration unit respectively, and ditch 3 is communicated with melt pit 1, in addition to grate 2, acidproof filter 5, pipe fitting, filtering
Net, is evenly equipped with the filter bores of uniform φ 4- φ 8 on 3 roads or 3 road above grates 2, grate 2 on the ditch 3 of melt pit 1, adjacent
The spacing of grate 2 be 0.8-1.5m, close to melt pit 1 grate 2 be provided with screen pack, screen pack be 30-50 mesh.Sump pump 4 goes out
Mouth is connected with acidproof filter 5 by pipe fitting, and the filtering accuracy of acidproof filter 5 is 50-80 μm, and its housing is by the acidproof modelings of PPH
Material makes, and filter core is by acidproof filter core of the PP plastics through expanded sintering.
Regeneration of hydrochloric acid unit acid-bearing wastewater recovery method, comprises the following steps：
1）The waste pipe between regeneration unit and neutralization station is closed first, then the outlet conduit of sump pump 4 with
The acidproof entrance of filter 5 is connected with PPH pipelines, and finally acidproof filter 5 is exported and is connected to flushing water pot with PPH plastic conduits
On 6；
2）The acid-bearing wastewater of collection is sent to melt pit 1 by ditch 3 after grate 2 tentatively filtering, when the acid-bearing wastewater of melt pit 1
When being highly more than 1.5 meters, start sump pump 4, acid-bearing wastewater is by acidproof filter 5 iron powder tiny in waste water and debris mistake
After filtering, enter flushing water pot 6 and recycle；When the height of the acid-bearing wastewater of melt pit 1 is less than 1.0 meters, sump pump 4 stops
Only operate, the water for rinsing water pot 6 is used as the absorption water on regeneration unit absorption tower, forms regenerated acid；Hydrochloric acid so in waste water is just
Utilization is efficiently recovered, acid-base neutralization processing is carried out without being discharged to neutralization station again.Filter needs 10 days or so with compression sky
The anti-iron powder once, cleaned out that cleans is reclaimed gas from top to bottom.
According to actual needs, acidproof filter 5 is 50 microns from filtering accuracy, and its housing uses PPH plastics
Acid resisting material, filter core select be material be PP plastics through it is expanded sintering formed acidproof filter core.Between grate 2 and grate 2
Away from for 1 meter, uniform φ 6 filter bores thereon, with melt pit 1 close to grate 2 on select the screen packs of 30 mesh.
The present invention realizes the recycling containing sour water, reduces the discharge of hydrochloric acid, reduces pollution of the chlorion to environment,
Greatly reduce the consumption of the eo-acid of hydrochloric acid；Because waste water is not discharged to neutralization station so that neutralization station is reduced in dead status
The pollution of environment；Due to the effective utilization of waste water, the increment of demineralized water is reduced, production cost is reduced.
Claims (1)
1. a kind of regeneration of hydrochloric acid unit acid-bearing wastewater recovery method, realizes that the regeneration of hydrochloric acid unit acid-bearing wastewater of methods described is reclaimed
Device, including melt pit, sump pump, ditch, sump pump are connected with melt pit, regeneration unit respectively, and ditch is communicated with melt pit, in addition to
Grate, acidproof filter, pipe fitting, screen pack, 3 roads or 3 road above grates, adjacent grate are evenly equipped with the ditch of melt pit
Spacing is 0.8-1.5m, and the grate close to melt pit is provided with screen pack, and melt pit pump discharge is connected with acidproof filter by pipe fitting,
The filtering accuracy of acidproof filter is 50-80 μm；The housing of described acidproof filter is by the acidproof plastic productions of PPH, filter core
By acidproof filter core of the PP plastics through expanded sintering；Described screen pack is 30-50 mesh；It is uniform on described grateFilter bores；Regeneration of hydrochloric acid unit acid-bearing wastewater recovery method, it is characterised in that comprise the following steps：
1) waste pipe between regeneration unit and neutralization station is closed first, then the outlet conduit and acidproof mistake of sump pump
Filter inlet is connected with PPH pipelines, and finally acidproof filter outlet is connected on flushing water pot with PPH plastic conduits；
2) ditch is sent to melt pit after the acid-bearing wastewater of collection is tentatively filtered through grate, when the height of the acid-bearing wastewater of melt pit is more than
At 1.5 meters, start sump pump, after acid-bearing wastewater falls iron powder and filtering foreign tiny in waste water by acidproof filter,
Flushing water pot is entered to recycle；When the height of the acid-bearing wastewater of melt pit is less than 1.0 meters, sump pump shuts down, flushing water
The water of tank is used as the absorption water on regeneration unit absorption tower, forms regenerated acid；Acidproof filter is once purged to reclaim iron powder therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310720276.2A CN103721476B (en) | 2013-12-20 | 2013-12-20 | Acid-containing wastewater recovery device and method for hydrochloric acid regeneration unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310720276.2A CN103721476B (en) | 2013-12-20 | 2013-12-20 | Acid-containing wastewater recovery device and method for hydrochloric acid regeneration unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103721476A CN103721476A (en) | 2014-04-16 |
| CN103721476B true CN103721476B (en) | 2017-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310720276.2A Active CN103721476B (en) | 2013-12-20 | 2013-12-20 | Acid-containing wastewater recovery device and method for hydrochloric acid regeneration unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN103721476B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104478062B (en) * | 2014-11-26 | 2016-04-13 | 天津太钢天管不锈钢有限公司 | A kind of spent acid treatment system and cleaning system thereof |
| CN104790707B (en) * | 2015-04-19 | 2017-01-25 | 湖南福欣锗业科技有限公司 | Alkali liquor storage pool |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3999564A (en) * | 1976-01-09 | 1976-12-28 | Pesek Engineering & Mfg. Co. | Continuous etching and etched material recovery system |
| JPS61174911A (en) * | 1985-01-30 | 1986-08-06 | Chiyoda Sangyo Kk | Process for treating waste water |
| CN101109088A (en) * | 2007-08-14 | 2008-01-23 | 邯郸钢铁股份有限公司 | Technique for cleaning acid dirty of acid reactivating machine group inner loop type pipeline |
| CN202238811U (en) * | 2011-08-31 | 2012-05-30 | 重庆诗仙太白酒业（集团）有限公司 | Wastewater recycling device of bottle cleaning machine |
| CN102674393A (en) * | 2011-03-18 | 2012-09-19 | 宝山钢铁股份有限公司 | Method for recycling waste ammonia water |
| CN203694756U (en) * | 2013-12-20 | 2014-07-09 | 鞍钢股份有限公司 | Hydrochloric acid regeneration unit contains acid waste water recovery unit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103007716A (en) * | 2012-12-22 | 2013-04-03 | 山东博丰利众化工有限公司 | Recycling device for dilute acid in pyrite acid making purification |
-
2013
- 2013-12-20 CN CN201310720276.2A patent/CN103721476B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3999564A (en) * | 1976-01-09 | 1976-12-28 | Pesek Engineering & Mfg. Co. | Continuous etching and etched material recovery system |
| JPS61174911A (en) * | 1985-01-30 | 1986-08-06 | Chiyoda Sangyo Kk | Process for treating waste water |
| CN101109088A (en) * | 2007-08-14 | 2008-01-23 | 邯郸钢铁股份有限公司 | Technique for cleaning acid dirty of acid reactivating machine group inner loop type pipeline |
| CN102674393A (en) * | 2011-03-18 | 2012-09-19 | 宝山钢铁股份有限公司 | Method for recycling waste ammonia water |
| CN202238811U (en) * | 2011-08-31 | 2012-05-30 | 重庆诗仙太白酒业（集团）有限公司 | Wastewater recycling device of bottle cleaning machine |
| CN203694756U (en) * | 2013-12-20 | 2014-07-09 | 鞍钢股份有限公司 | Hydrochloric acid regeneration unit contains acid waste water recovery unit |
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| Publication number | Publication date |
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| CN103721476A (en) | 2014-04-16 |
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