CN206872597U - Steel pickling waste liquor recycling treatment system - Google Patents
Steel pickling waste liquor recycling treatment system Download PDFInfo
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- CN206872597U CN206872597U CN201720492085.9U CN201720492085U CN206872597U CN 206872597 U CN206872597 U CN 206872597U CN 201720492085 U CN201720492085 U CN 201720492085U CN 206872597 U CN206872597 U CN 206872597U
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- water
- reverse osmosis
- osmosis equipment
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Abstract
The utility model provides a kind of steel pickling waste liquor recycling treatment system, including the preliminary filter through placed in series successively, ultrafilter, leading portion reverse osmosis equipment and back segment reverse osmosis equipment, the water inlet of the preliminary filter is communicated with wastewater collection pipeline, the water purification delivery port of the leading portion reverse osmosis equipment is communicated to the water inlet of back segment reverse osmosis equipment, and the concentrated water delivery port of leading portion reverse osmosis equipment and back segment reverse osmosis equipment is communicated to sour water reuse pipeline.Waste water reclaiming processing is carried out using the utility model processing system, using multiple filtration and reverse-osmosis treated, the pickling waste waters is set to be processed into the reclaimed water that can be re-applied and sour water, so as to realize recycling, innoxious processing intent, meanwhile processing method of the present utility model is simple and easy to control, processing cost is low and achieves noticeable achievement.
Description
Technical field
The utility model belongs to technical field of waste water processing, and in particular to a kind of steel pickling waste liquor recycling treatment system
System.
Background technology
Acid cleaning process manufacturing enterprise, in seamless steel tube production process, typically will two-tube base pickling, then use clear water again
It is rinsed, pickling waste waters described in the utility model, exactly rinses the waste water of pickling pipe.
Because the pH value of the pickling waste waters is typically in the range of 2.5~3.3, undoubtedly, directly discharge is to be not allowed to
, the wasting of resources is will also result in, but direct reuse can not meet manufacturing technique requirent again, it is therefore necessary to which pickling waste waters is implemented to provide
Sourceization processing.
It is to the processing method of the pickling waste waters in the prior art：Neutralize the precipitation one press filtration one generation filter cake of a cohesion one
One landfill, specifically, solid piece alkali (such as NaOH) is added first in the waste water, add flocculating agent (such as polypropylene
Acid amides), then through precipitating press filtration generation (Fe (OH)3、Fe(OH)2) filter cake, then implement landfill disposal, this processing method
Drawback is clearly；（1）Soil can still be polluted after processing；（2）The handling process time is grown, and processing equipment takes plant area face
Product is big, and site environment is poor；（3）Processing cost is high：About 300~500 yuan/ton, for steel pipe's production enterprise, pickling waste waters
Yield is very big, if putting into so high cost on processing waste water, it is clear that be difficult to receive.
Therefore, research and development one kind can either reclaim chemical resource, and can enough realizes the pickling waste waters recycling treatment of zero-emission
Method, turn into active demand in the industry.
Utility model content
The utility model is in the prior art, and steel pickling waste liquor processing cost is high and the problem of pollution environment, there is provided
A kind of steel pickling waste liquor recycling treatment system, the whole processing system of the utility model is in the presence of technique pump in closed
Carried out in container, using multiple filtration and reverse-osmosis treated, substitute the cohesion of the prior art passed on for a long time, precipitation and
The measures such as press filtration, the pickling waste waters is set to be processed into the reclaimed water that can be re-applied and sour water, so as to realize recycling, nothing
The processing intent of evilization, meanwhile, processing method of the present utility model is simple and easy to control, processing cost is low and achieves noticeable achievement.
To realize above-mentioned technical purpose, the utility model adopts the following technical scheme that：
A kind of steel pickling waste liquor recycling treatment system, including the preliminary filter through placed in series, ultrafilter, leading portion successively
Reverse osmosis equipment and back segment reverse osmosis equipment, the water inlet of the preliminary filter are communicated with wastewater collection pipeline, the leading portion reverse osmosis
The water purification delivery port of saturating equipment is communicated to the water inlet of back segment reverse osmosis equipment, and leading portion reverse osmosis equipment and back segment counter-infiltration are set
Standby concentrated water delivery port is communicated to sour water reuse pipeline.
Preferably, the water flux of the leading portion reverse osmosis equipment is 10 ~ 15 lmh/bar, H+Rejection be more than 99%,
The water flux of back segment reverse osmosis equipment is 16 ~ 20 lmh/bar, H+Rejection be more than 95%.
Preferably, the water purification delivery port of the back segment reverse osmosis equipment is communicated with reclaimed water collection conduit, the sour water reuse
Pipeline is provided with distiller, and the distillation condensed water of the distiller is via pipeline to the reclaimed water collection conduit.
Preferably, it is communicated with drug feeding pipeline on the wastewater collection pipeline.
Preferably, the pipeline between ultrafilter and the leading portion reverse osmosis equipment is provided with booster pump.
Preferably, the preliminary filter is bag filter.
Preferably, the ultrafilter uses ceramic ultra-filter, and the ceramic super-filtering film in the ceramic ultra-filter is cross-current type,
And the ceramic super-filtering film is coated with glass reinforced plastic pipe, polyvinyl chloride pipe or stainless steel tube.
Filter bag in the bag filter is acidproof filter bag more than 20,000 mesh, can filter off the exhausted big portion in waste water
Divide the contamination precipitations such as silt, reduce the live load of follow-up ceramic super-filtering film, form the classification of filtering accuracy；It is moreover, described super
Filter selects the ceramic super-filtering film of cross-current type, from there through the souring of itself, makes milipore filter self-cleaning, without often clear
Wash and service life is extended.
A kind of steel pickling waste liquor recycling processing method, is handled through following steps successively：
（1）Compound drug processing：The compound drug includes component A, component B and component C, and the component A is used for will be useless
Fe in water3+Content is down to below 10ppm, and the component B is used for the pH to 3.8 ~ 4.5 for adjusting waste water, and the component C passes through wadding
Solid matter in solidifying effect sedimentation waste water, such as silt；The dosage of compound drug is the 0.03% ~ 0.1% of waste water total amount；
Pass through step（1）After processing, it is possible to increase the filter efficiency of subsequent filter process, and reduce reverse osmosis equipment
Cleaning frequency, extend the service life of reverse osmosis equipment.
（2）Initial filter：The solid impurity that size in waste water is more than 1 μm is removed by initial filter；
（3）Ultrafiltration：The solid impurity that size in waste water is more than 50nm is removed by ultrafiltration；
（4）Reverse-osmosis treated：By reverse-osmosis treated, the reclaimed water and pH that acquisition pH is 6.5~7.0 respectively are 1.0~3.0
Ooze from sour water；
（5）Reuse：By step（4）Gained reclaimed water implements industrial reuse, and gained is oozed from sour water concentration to sulfuric acid content
After 8 ~ 12 weight %, the weight fraction meets the technological requirement of pickling process, imports acid washing rolled steel process reuse.
After sour water concentration, Water Sproading during the condensed water that is concentrated to give is used as, the rate of recovery of final reclaimed water up to 95% with
On, resource utilization is high.
Recycling processing method described in the utility model, which is often operated at full capacity 8 ~ 12 hours, implements a clear water recoil, with
Filter efficiency is improved, while maintains relevant device, reclaimed water obtained above can be selected in clear water used.
Preferably, the component A is the one or more in sodium sulfite, sodium hydrogensulfite and salt of poly aspartic acid,
The component B is the one or more in ammonium carbonate, ammonium hydrogen carbonate and piece alkali, and the component C is sodium citrate.
Preferably, step（4）In, the reverse-osmosis treated includes leading portion reverse-osmosis treated and back segment reverse-osmosis treated, institute
State the concentrated water that leading portion reverse-osmosis treated and back segment reverse-osmosis treated obtain and collectively form described ooze from sour water, leading portion reverse-osmosis treated
Obtained water purification carries out back segment reverse-osmosis treated, and the water flux of leading portion reverse-osmosis treated is 10 ~ 15 lmh/bar, H+Rejection
For more than 99%, the water flux of back segment reverse-osmosis treated is 16 ~ 20 lmh/bar, H+Rejection be more than 95%.
Counter-infiltration uses different reverse osmosis membranes, leading portion intake pressure height (2.3 ~ 2.5 using two-part and leading portion and back segment
MPa), using the higher reverse osmosis membrane of the smaller rejection of water flux, back segment intake pressure is relatively low (2.0 ~ 2.2 MPa), using water
The relatively low reverse osmosis membrane of the larger rejection of flux；Adjusted by the configuration of reverse osmosis membrane, back segment is without additionally setting booster pump, together
When leading portion and back segment water yield keep balance, effectively prevent local water flux it is excessive caused by fouling membrane, through practice find,
By the cooperation of different type reverse osmosis membrane, the reclaimed water rate of recovery after reverse-osmosis treated is up to more than 85%.
Technique described in the utility model is simple and easy to control, and processing cost is low, chemical resource recycling, zero-emission, pollution-free,
When associated production enterprise practical is on probation, calculates and find its integrated treatment cost at 10 yuan/ton or so（Place of the prior art
Manage about 300~500 yuan/ton of cost）, and whole processing site environment is clean, No Assets waste, and non-pollution discharge, achieve ten
Divide obvious technical economic benefit, obtain the appreciation of enterprise on probation, application value is high.
Brief description of the drawings
Fig. 1 is the structural representation of processing system described in the utility model；
1st, wastewater collection pipeline；2nd, 1# pumps；3rd, drug feeding pipeline；4th, 2# pumps；5th, bag filter；6th, ceramic ultra-filter；7、
Booster pump；8th, leading portion reverse osmosis equipment；9th, back segment reverse osmosis equipment；10th, graphite evaporator；11st, reclaimed water collection conduit；12nd, it is sour
Water circulation pipeline；13rd, distilled water collection conduits.
Embodiment
In order that technical purpose of the present utility model, technical scheme and beneficial effect are clearer, below in conjunction with the accompanying drawings and
Specific embodiment is further illustrated to the technical solution of the utility model.
As shown in figure 1, a kind of steel pickling waste liquor recycling treatment system, including successively the preliminary filter through placed in series,
Ultrafilter, leading portion reverse osmosis equipment and back segment reverse osmosis equipment, the preliminary filter are bag filter 5, in bag filter 5
Filter bag is acidproof filter bag more than 20,000 mesh, and the water inlet of bag filter 5 is communicated with wastewater collection pipeline 1, the waste water
Collection conduit 1 is provided with 1# pumps 2 and wastewater collection pipeline 1 is communicated with drug feeding pipeline 3, and the drug feeding pipeline 3 is provided with 2# pumps 4.
The ultrafilter is ceramic ultra-filter 6, and the ceramic super-filtering film in the ceramic ultra-filter 6 is cross-current type, and the Ceramic excessive filtration
Film is coated with glass reinforced plastic pipe, polyvinyl chloride pipe or stainless steel tube, the pipe between ceramic ultra-filter 6 and leading portion reverse osmosis equipment 8
Road is provided with booster pump 7, and the setting of booster pump 7 is to improve the intake pressure of leading portion so that leading portion intake pressure is up to
2.4MPa, slightly lower rear end intake pressure is 2.1 MPa.It is anti-that the water purification delivery port of the leading portion reverse osmosis equipment 8 is communicated to back segment
The water inlet of penetration equipment 9, and the concentrated water delivery port of leading portion reverse osmosis equipment 8 and back segment reverse osmosis equipment 9 is communicated to sour water
Reuse pipeline 12, the water purification delivery port of the back segment reverse osmosis equipment 9 are communicated with reclaimed water collection conduit 11, the sour water reuse pipe
Road 12 is provided with distiller, and the distiller is graphite evaporator 10, and the graphite evaporator is added from graphite stem heat exchanger
Heat（Concrete structure can be found in Chinese patent ZL 201510133566.6）, the distillation condensed water of graphite evaporator 10 is via distillation
Water collection conduits 13 are delivered to the reclaimed water collection conduit 11, will not fall this partial condensation water waste.The leading portion counter-infiltration
The water flux of reverse osmosis membrane is 13.4 lmh/bar, H in equipment 8+Rejection be 99.5%, reverse osmosis in back segment reverse osmosis equipment 9
The water flux of permeable membrane is 18.1 lmh/bar, H+Rejection be 97.9%, the reverse osmosis membrane comes from GE companies of the U.S..Waste water
At collection conduit 1, the water inlet position of bag filter 5, the delivery port opening position of bag filter 5 and ceramic ultra-filter 6
Stop valve is equipped with pipeline between booster pump 7, the break-make for current in control process system.
Using above-mentioned processing system carry out steel pickling waste liquor recycling processing method, successively through following steps at
Reason：
（1）Compound drug processing：The compound drug includes component A, component B and component C, and the component A is used for will be useless
Fe in water3+Content is down to below 10ppm, and the component B is used for the pH to 3.8 ~ 4.5 for adjusting waste water, and the component C passes through wadding
Silt in solidifying effect sedimentation waste water；
The composition of the compound drug is as follows, in parts by weight：12 parts of sodium sulfite, 15 parts of sodium citrate, ammonium carbonate or
30 parts of 23 parts of ammonium hydrogen carbonate, 24 parts of piece alkali and salt of poly aspartic acid, add suitable quantity of water and stir evenly in uniform compound decoction,
The dosage of compound drug is the 0.06% of waste water total amount；
Waste water F is delivered in bag filter 5 by the driving effect of 1# pumps 2 via wastewater collection pipeline 1, described multiple
Vehicle Y is delivered in wastewater collection pipeline 1 by the driving effect of 2# pumps 4 via drug feeding pipeline 3, so as to be mixed with waste water；
（2）Initial filter：The solid impurity that size in waste water is more than 1 μm is removed by initial filter via bag filter 5；
（3）Ultrafiltration：Waste water after being handled by the initial filter of bag filter 5 is removed via ceramic ultra-filter 6 by ultrafiltration again
Size is more than 50nm solid impurity in waste water；
（4）Reverse-osmosis treated：By the waste water after the hyperfiltration treatment of ceramic ultra-filter 6 finally by reverse-osmosis treated, obtain respectively
PH be 6.5~7.0 reclaimed water Z and pH be 1.0~3.0 to ooze from sour water S；
The reverse-osmosis treated includes leading portion reverse-osmosis treated and back segment reverse-osmosis treated, and leading portion reverse-osmosis treated is by leading portion
Reverse osmosis equipment 8 is completed, and back segment reverse-osmosis treated is completed by back segment reverse osmosis equipment 9, the leading portion reverse-osmosis treated and back segment
The concentrated water that reverse-osmosis treated obtains respectively via pipe influx to sour water reuse pipeline 12 and collectively form it is described ooze from sour water, it is preceding
After the water purification that section reverse-osmosis treated obtains is by the water purification delivery port discharge of leading portion reverse osmosis equipment 8, via pipeline to back segment
The water inlet of reverse osmosis equipment 9, continue at progress back segment reverse-osmosis treated, back segment reverse osmosis equipment 9 in back segment reverse osmosis equipment 9
Water purification delivery port be communicated with reclaimed water collection conduit 11, the water flux of leading portion reverse-osmosis treated is 13.4 lmh/bar, H+Cut
It is 99.5% to stay rate, and the water flux of back segment reverse-osmosis treated is 18.1 lmh/bar, H+Rejection be 97.9%.
（5）Reuse：By step（4）Gained reclaimed water implements industrial reuse, such as can be reused for the flushings of steel, workshop
Face cleaning etc., gained ooze from sour water in carried out in the graphite evaporator 10 set on sour water reuse pipeline 12 heat distillation processing,
To ooze from the sulfuric acid content in sour water be 8 ~ 12 weight % so as to being concentrated into, and the weight fraction meets the technological requirement of pickling process, can
Import acid washing rolled steel process reuse.
The condensed water obtained during sour water heating distillation is delivered to the reclaimed water collection conduit via distilled water collection conduits 13
11, as middle Water Sproading, for the rate of recovery of final reclaimed water up to more than 95%, resource utilization is high.
Recycling processing method described in the utility model is carried out in the presence of technique is with pump in closed container, from basic
On ensure that the cleaning of workshop condition, further increase enterprise and processing system described in the utility model and processing method connect
Spent；Wherein the operating pressure of booster pump 7 is in the range of 1.5~3.0Mpa.
Recycling processing method described in the utility model, which is often operated at full capacity 8 ~ 12 hours, implements a clear water recoil, with
Filter efficiency is improved, while maintains relevant device, reclaimed water obtained above can be selected in clear water used.
It should be noted last that：Above-described embodiment is merely to illustrate and unrestricted the technical solution of the utility model, is appointed
The equivalent substitution and do not depart from the modification of the spirit and scope of the utility model or local replacement what is carried out to the utility model, its is equal
It should cover within the scope of the utility model claims protection.
Claims (7)
1. a kind of steel pickling waste liquor recycling treatment system, it is characterised in that including the preliminary filter through placed in series successively, surpass
Filter, leading portion reverse osmosis equipment and back segment reverse osmosis equipment, the water inlet of the preliminary filter is communicated with wastewater collection pipeline, described
The water purification delivery port of leading portion reverse osmosis equipment is communicated to the water inlet of back segment reverse osmosis equipment, and leading portion reverse osmosis equipment and back segment
The concentrated water delivery port of reverse osmosis equipment is communicated to sour water reuse pipeline.
2. steel pickling waste liquor recycling treatment system according to claim 1, it is characterised in that the leading portion counter-infiltration
The water flux of equipment is 10 ~ 15 lmh/bar, H+Rejection be more than 99%, the water flux of back segment reverse osmosis equipment is 16 ~ 20
Lmh/bar, H+Rejection be more than 95%.
3. steel pickling waste liquor recycling treatment system according to claim 1, it is characterised in that the back segment counter-infiltration
The water purification delivery port of equipment is communicated with reclaimed water collection conduit, and the sour water reuse pipeline is provided with distiller, the distiller
Condensed water is distilled via pipeline to the reclaimed water collection conduit.
4. the steel pickling waste liquor recycling treatment system according to any one of claims 1 to 3, it is characterised in that described
Drug feeding pipeline is communicated with wastewater collection pipeline.
5. steel pickling waste liquor recycling treatment system according to claim 1, it is characterised in that the ultrafilter is with before
Pipeline between section reverse osmosis equipment is provided with booster pump.
6. steel pickling waste liquor recycling treatment system according to claim 1, it is characterised in that the preliminary filter is bag
Formula filter.
7. steel pickling waste liquor recycling treatment system according to claim 1, it is characterised in that the ultrafilter is pottery
Porcelain milipore filter ultrafilter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720492085.9U CN206872597U (en) | 2017-05-05 | 2017-05-05 | Steel pickling waste liquor recycling treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720492085.9U CN206872597U (en) | 2017-05-05 | 2017-05-05 | Steel pickling waste liquor recycling treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206872597U true CN206872597U (en) | 2018-01-12 |
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ID=61339624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720492085.9U Expired - Fee Related CN206872597U (en) | 2017-05-05 | 2017-05-05 | Steel pickling waste liquor recycling treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206872597U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106966540A (en) * | 2017-05-05 | 2017-07-21 | 常州润德石墨科技有限公司 | Steel pickling waste liquor recycling treatment system and its processing method |
| CN109837554A (en) * | 2019-03-04 | 2019-06-04 | 东营华泰化工集团有限公司 | A kind of electrolysis liquor collecting device preventing corrosion leakage |
-
2017
- 2017-05-05 CN CN201720492085.9U patent/CN206872597U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106966540A (en) * | 2017-05-05 | 2017-07-21 | 常州润德石墨科技有限公司 | Steel pickling waste liquor recycling treatment system and its processing method |
| CN109837554A (en) * | 2019-03-04 | 2019-06-04 | 东营华泰化工集团有限公司 | A kind of electrolysis liquor collecting device preventing corrosion leakage |
| CN109837554B (en) * | 2019-03-04 | 2021-02-19 | 东营华泰化工集团有限公司 | Electrolyte collection device for preventing corrosion and leakage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180112 Termination date: 20200505 |