CN107651775A - Slag cooling waste water recovery and processing system - Google Patents

Slag cooling waste water recovery and processing system Download PDF

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Publication number
CN107651775A
CN107651775A CN201710907417.XA CN201710907417A CN107651775A CN 107651775 A CN107651775 A CN 107651775A CN 201710907417 A CN201710907417 A CN 201710907417A CN 107651775 A CN107651775 A CN 107651775A
Authority
CN
China
Prior art keywords
waste water
processing system
water recovery
slag cooling
cooling waste
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710907417.XA
Other languages
Chinese (zh)
Inventor
徐进
衡红
刘维强
尹丽
邱军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan Desheng Group Vanadium Titanium Co Ltd
Original Assignee
Sichuan Desheng Group Vanadium Titanium Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sichuan Desheng Group Vanadium Titanium Co Ltd filed Critical Sichuan Desheng Group Vanadium Titanium Co Ltd
Priority to CN201710907417.XA priority Critical patent/CN107651775A/en
Publication of CN107651775A publication Critical patent/CN107651775A/en
Pending legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water, or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56Macromolecular compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/66Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/76Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F2001/007Processes including a sedimentation step
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/16Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/04Disinfection

Abstract

The invention discloses a kind of slag cooling waste water recovery and processing system, it is characterised in that:Including the grid channel for being used to filter, the preceding mixing pit for launching quick lime and flocculant, the flocculation basin for flocculation, sedimentation basin, the rear mixing pit for launching sulfuric acid and flocculant, the filter tank for filtering and the reuse pool for water storage for high density precipitation being sequentially connected.Slag cooling waste water recovery and processing system with above-mentioned steps, cooling water is filtered, softened, is flocculated, is precipitated, salvage after realize purification so that it can be reused without outer row, greatly save water source, reduce externally discharge caused by pollution.

Description

Slag cooling waste water recovery and processing system
Technical field
The present invention relates to the system that slag cooling cooling water is recycled and recycled in a kind of steel mill.
Background technology
Slag needs to be cooled down with water in steel mill, and it can consume hundreds of tons of cooling waters daily.
Existing cooling water is all the new water utilized, and the sewage after cooling is just outer after simple process to be arranged.So The substantial amounts of new water of consumption is first had to, produces huge waste.And outer water vent can pollute to environment, the ecological balance is destroyed, is increased Add company's sewage load.
The content of the invention
In view of this, the present invention provides a kind of slag cooling waste water recovery and processing system, and purified treatment is carried out to cooling water After recycle, greatly save new water consumption, and reduce discharge.
To solve above technical problem, the technical scheme is that:A kind of slag cooling waste water recovery and processing system, bag Include the grid channel, the preceding mixing pit for launching quick lime and flocculant, the wadding for flocculation that are used to filter being sequentially connected Solidifying pond, the sedimentation basin for high density precipitation, the rear mixing pit for launching sulfuric acid and flocculant, the filter tank for filtering and Reuse pool for water storage.
As an improvement the grid channel before preceding mixing pit with being provided with for adjusting cooling water flow and concentration Regulating reservoir.
As an improvement air mixer and oil slick absorption device are provided with the regulating reservoir.
As a preferred embodiment, the grid channel width is 0.8 meter, thick, each two of fine fack is inside set;Coarse rack grid gap is 20 millimeters, fine fack grid gap is 5 millimeters;Grid established angle is 75 °.
As an improvement being launched in the flocculation basin has PAM flocculation aids.
As an improvement in addition to a medicine system, the medicine system include PAC system, PAM systems, sulfuric acid System, lime system.
As an improvement in addition to disappear for the chlorination that potassium permanganate composites, front and rear mixing pit, reuse pool carry out disinfection Malicious system.
The present invention is advantageous in that:Slag cooling waste water recovery and processing system with above-mentioned steps, to cooling water Filtered, softened, being flocculated, being precipitated, salvage after realize purification so that it can be reused without outer row, greatlyd save New water, reduce waste water externally pollution caused by row.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Embodiment
In order that those skilled in the art more fully understands technical scheme, with reference to embodiment The present invention is described in further detail.
As shown in figure 1, the present invention include be sequentially connected be used for filter grid channel, for adjust cooling water flow and The regulating reservoir of concentration, the preceding mixing pit for launching quick lime and flocculant, the flocculation basin for flocculation, for high density precipitate Sedimentation basin, the rear mixing pit for launching sulfuric acid and flocculant, the filter tank for filtering and the reuse pool for water storage.
Grid channel is two, and wall scroll width is 0.8 meter, inside sets thick, each two of fine fack;Coarse rack grid gap is 20 millis Rice, fine fack grid gap are 5 millimeters;Grid established angle is 75 °.Liquid level difference meter is set before and after grid, scarfing cinder work can be according to liquid level difference The time of setting is carried out automatically.
Regulating reservoir is two, single 1500 cubic metres of pond dischargeable capacity, air mixer and oil slick is provided with regulating reservoir Absorption plant.Sludge settling is prevented by compressed air, oil slick absorption device absorbs the oil slick in waste water.
Flocculant is launched in preceding mixing pit and lime, flocculant select PAC.Mixer is provided with preceding mixing pit.
Flocculation basin is two, and is provided with two flocculation stirring machines.Being launched in flocculation basin has PAM flocculation aids.
Hexagon inclined tube is set in potassium permanganate composites, mounted angle is 60 °.Sludge reflux and emptying pump use screw rod Pump.
Flocculant and sulfuric acid are launched in mixing pit afterwards.The flocculant selects PAC.
V-type filter tank is selected in filter tank, and single 70 square metres of pool area, 4.5 meters of normal rate filtering is per hour-, 6 meters of forcing filter rate is per small When, thickness of filter bed 1.4m, particle diameter of filter medium 0.9-1.2 millimeters;Cubic metre/square metre of flushing water intensity 15 per hour, gas intensity 55 Cubic metre/square metre is per hour;Water source comes from centrifugal pump, separate unit flow 711m, lift 16m, power 45KW, totally 3, and 2 with 1 It is standby;Source of the gas comes from Roots blower, and the cubic meters per minute of separate unit air quantity 66.17, lift 5m, power 90KW, totally 2,1 is standby with 1.
Also include a medicine system, the medicine system includes PAC system, PAM systems, sulfate system, lime system.
PAC system is that front and rear mixing pit fills coagulant, is filled after being diluted using bodied ferric sulfate with dosing pump.
PAM systems are that flocculation basin fills flocculation aid, are filled after being configured using PAM powder with dosing pump.
Sulfate system is that rear mixing pit fills sulfuric acid.
Lime system uses lime milk solution dosing method.
Also include the chlorination system to be carried out disinfection for potassium permanganate composites, front and rear mixing pit, reuse pool.
It the above is only the preferred embodiment of the present invention, it is noted that above-mentioned preferred embodiment is not construed as pair The limitation of the present invention, protection scope of the present invention should be defined by claim limited range.For the art For those of ordinary skill, without departing from the spirit and scope of the present invention, some improvements and modifications can also be made, these change Enter and retouch and also should be regarded as protection scope of the present invention.

Claims (8)

  1. A kind of 1. slag cooling waste water recovery and processing system, it is characterised in that:Including the grid canal for being used to filter being sequentially connected Road, the preceding mixing pit for launching quick lime and flocculant, the flocculation basin for flocculation, for high density precipitation sedimentation basin, For launching rear mixing pit, the filter tank for filtering and the reuse pool for water storage of sulfuric acid and flocculant.
  2. A kind of 2. slag cooling waste water recovery and processing system according to claim 1, it is characterised in that:The grid channel With being provided with the regulating reservoir for adjusting cooling water flow and concentration before preceding mixing pit.
  3. A kind of 3. slag cooling waste water recovery and processing system according to claim 2, it is characterised in that:In the regulating reservoir It is provided with air mixer and oil slick absorption device.
  4. A kind of 4. slag cooling waste water recovery and processing system according to claim 1, it is characterised in that:The flocculant is PAC。
  5. A kind of 5. slag cooling waste water recovery and processing system according to claim 1, it is characterised in that:The grid channel Width is 0.8 meter, inside sets thick, each two of fine fack;Coarse rack grid gap is 20 millimeters, and fine fack grid gap is 5 millimeters;Grid is installed Angle is 75 °.
  6. A kind of 6. slag cooling waste water recovery and processing system according to claim 1, it is characterised in that:In the flocculation basin Dispensing has PAM flocculation aids.
  7. A kind of 7. slag cooling waste water recovery and processing system according to claim 1, it is characterised in that:Also include one to add Medicine system, the medicine system include PAC system, PAM systems, sulfate system, lime system.
  8. A kind of 8. slag cooling waste water recovery and processing system according to claim 1, it is characterised in that:Also include to be highly dense The chlorination system that degree sedimentation basin, front and rear mixing pit, reuse pool carry out disinfection.
CN201710907417.XA 2017-09-29 2017-09-29 Slag cooling waste water recovery and processing system Pending CN107651775A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710907417.XA CN107651775A (en) 2017-09-29 2017-09-29 Slag cooling waste water recovery and processing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710907417.XA CN107651775A (en) 2017-09-29 2017-09-29 Slag cooling waste water recovery and processing system

Publications (1)

Publication Number Publication Date
CN107651775A true CN107651775A (en) 2018-02-02

Family

ID=61117028

Family Applications (1)

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CN201710907417.XA Pending CN107651775A (en) 2017-09-29 2017-09-29 Slag cooling waste water recovery and processing system

Country Status (1)

Country Link
CN (1) CN107651775A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107601706A (en) * 2017-09-29 2018-01-19 四川德胜集团钒钛有限公司 Blower fan overflow water recovery processing method
CN108395049A (en) * 2018-03-19 2018-08-14 四川德胜集团钒钛有限公司 Sewage disposal system
CN109231548A (en) * 2018-09-28 2019-01-18 江苏久华环保科技股份有限公司 A kind of iron and steel enterprise's industrial water optimization system
CN112062329A (en) * 2020-08-25 2020-12-11 耒阳金悦科技发展有限公司 Energy-saving cooling water recovery treatment method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203700070U (en) * 2013-12-11 2014-07-09 北京志能祥赢节能环保科技有限公司 Device for mixing and recycling steel waste water and municipal sewage

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203700070U (en) * 2013-12-11 2014-07-09 北京志能祥赢节能环保科技有限公司 Device for mixing and recycling steel waste water and municipal sewage

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
孙红晔等: "承钢综合废水处理厂一期工程设计", 《中国给水排水》 *
尹士海等: "新型高密度沉淀池在唐钢的应用", 《河北冶金》 *
李杰: "高密度沉淀池-V型滤池处理钢厂废水并回用", 《中国给水排水》 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107601706A (en) * 2017-09-29 2018-01-19 四川德胜集团钒钛有限公司 Blower fan overflow water recovery processing method
CN108395049A (en) * 2018-03-19 2018-08-14 四川德胜集团钒钛有限公司 Sewage disposal system
CN109231548A (en) * 2018-09-28 2019-01-18 江苏久华环保科技股份有限公司 A kind of iron and steel enterprise's industrial water optimization system
CN112062329A (en) * 2020-08-25 2020-12-11 耒阳金悦科技发展有限公司 Energy-saving cooling water recovery treatment method

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Application publication date: 20180202

RJ01 Rejection of invention patent application after publication