CN202430074U - Water treatment device - Google Patents
Water treatment device Download PDFInfo
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- CN202430074U CN202430074U CN2012200284705U CN201220028470U CN202430074U CN 202430074 U CN202430074 U CN 202430074U CN 2012200284705 U CN2012200284705 U CN 2012200284705U CN 201220028470 U CN201220028470 U CN 201220028470U CN 202430074 U CN202430074 U CN 202430074U
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Abstract
A water treatment device comprises a rotational flow sedimentation tank (1), a horizontal flow sedimentation tank (2), a chemical degreaser (3) and a filter (4). The rotational flow sedimentation tank (1) is connected with the horizontal flow sedimentation tank (2) and the chemical degreaser (3) through pipelines simultaneously, and the horizontal flow sedimentation tank (2) and the chemical degreaser (3) are connected with the filter (4) through pipelines simultaneously. The horizontal flow sedimentation tank (2) and the chemical degreaser (3) are in parallel connection to be used as a secondary sedimentation and degreasing facility for treatment of turbid circulating water of steelmaking hot rolling workshops, water treatment volume of the horizontal flow sedimentation tank (2) and the chemical degreaser (3) can be reasonably distributed, treatment effects of the horizontal flow sedimentation tank (2) and the chemical degreaser (3) are fully used, and accordingly treatment capacity of each treatment facility is maximized.
Description
Technical field
The present invention relates to a kind of water treatment device, especially relate to a kind of Iron And Steel Industry turbid circulating water treatment unit.
Background technology
Current; Along with the final steel iron product develops to high-end product gradually; Hot rolling technology requires progressively to improve to water quality standard; When satisfying the process water water quality requirement, require to reduce the new water consumption of production, strict execution processing and emission standard, cleaner production, strive reaching the factory effluent zero release.And for the production cycle water system, turbid circulating water accounts for more than 60%, and investment and occupation of land have reached about 70%～80% especially, and is therefore for the improvement of turbid circulating water treatment process, significant to whole hot rolling water system.
Iron and steel enterprise's turbid circulating water directly contacts with cooling (processing) object in the operation of rolling; Bring a large amount of iron scale particles, metallic dust and lubricating grease in the water into; Form hot rolling oil-containing turbid circulating water system, Gu be actually a kind of water-(metallic dust)-complicated mixed system of oily three-phase.The mass concentration that is characterized in iron scale is high, grain diameter is big, oil-containing is many.And present high-end steel products are had relatively high expectations to the turbid circulating water water supply quality, require suspension content≤20mg/L, oil-contg≤5mg/L usually.Conventional in this case cyclone sediment pond (the scale pit)+chemical oil remover flow process or the effluent quality of cyclone sediment pond (scale pit)+horizontal sedimentation tank can't meet the demands, and must carry out three deposition oil removal treatment through high rate filter and just can reach processing requirement.
The turbid circulating water of existing high-end steel products is handled has following two kinds of flow processs usually:
Flow process one; The water outlet of turbid circulating water primary sedimentation is promoted to horizontal sedimentation tank with pump and carries out the secondary sedimentation oil removal treatment; The horizontal flow basin water outlet is pumped up and is sent high rate filter further to remove suspended substance and oil, and water outlet utilizes after cooling tower cools on the overbottom pressure, pumps up to supply the user to use again.There is following problem in this treatment scheme: because the set oil removal plant of cyclone sediment pond and horizontal sedimentation tank only can the treating part oil slick; And oil in water emulsion is not almost handled; The water outlet suspension content also surpasses the maximum load that strainer allowed, and (high rate filter influent quality general requirement suspended substance 80～100mg/L, oil 10～20mg/L) cause remaining oil in water emulsion and suspended substance to form greasy filth and stick on the filtrate of strainer; Be difficult for being fallen by water backwashing; Cause filtrate to stop up, harden, the strainer cycle of operation is shortened, even need often to change filtrate.This situation causes system uptime short, and maintenance or service time are long, and the backwash number of times is frequent, the backwash water consumption, and big, the new water consumption of work load increases, and working cost is high.
Flow process two: the water outlet of turbid circulating water primary sedimentation is promoted to horizontal sedimentation tank with pump and carries out the secondary sedimentation oil removal treatment; The horizontal flow basin water outlet is pumped up and is sent chemical oil remover to carry out the deposition oil removal treatment three times; The chemical oil remover water outlet is pumped up and is sent high rate filter further to remove suspended substance and oil; Water outlet utilizes after cooling tower cools on the overbottom pressure, pumps up to supply the user to use again.This treatment scheme has successfully solved list makes the high rate filter load be difficult to bear the disadvantage of system pressure with horizontal sedimentation tank, and chemical oil remover causes floor space excessive but system connects, and once invests too high; Chemical oil remover is to adopt to add polymeric flocculant and the expensive operational outfit of oil flocculant simultaneously; Though the chemical oil remover water outlet is far above the requirement of strainer influent quality; But also do not reach the process water water quality requirement; Therefore also must keep high rate filter, and too high chemical oil remover effluent quality can not be given full play to the usefulness of high rate filter, the total system configuration presents the situation of " configuration is superfluous ".This situation causes the total system floor space to increase, investment increases, working cost increases, treatment facility is not fully used.
The utility model content
The utility model technical problem to be solved is to overcome existing Iron And Steel Industry turbid circulating water treatment unit horizontal sedimentation tank to connect with chemical oil remover; Floor space is excessive; The chemical oil remover water outlet is higher than the requirement of strainer influent quality, and the total system configuration presents the defective of " configuration is superfluous ", and a kind of water treatment device is provided; Reduced to take up an area of and investment, reduced operation and maintenance cost.
The utility model adopts horizontal sedimentation tank parallelly connected with chemical oil remover; Turbid circulating water behind the primary sedimentation of detection cyclone sediment pond; According to the oleaginousness in the water outlet of post precipitation what, regulate the turbid circulating water flow that gets into horizontal sedimentation tank and chemical oil remover respectively, the ability that makes full use of each treatment facility realizes the adjusting to water quality; Make system configuration just right, reached and invested rationally, move purpose effective, efficient energy-saving.
In order to solve the problems of the technologies described above; The utility model provides a kind of water treatment device; Comprise cyclone sediment pond 1 (scale pit), horizontal sedimentation tank 2, chemical oil remover 3 and strainer 4; Cyclone sediment pond 1 links to each other with chemical oil remover 3 pipelines with horizontal sedimentation tank 2 simultaneously, and horizontal sedimentation tank 2 links to each other with strainer 4 pipelines with chemical oil remover 3 simultaneously.
Preferably, this water treatment device further comprises force (forcing) pump A1-1, is arranged on cyclone sediment pond 1, and between horizontal sedimentation tank 2 and the chemical oil remover 3.
Preferably; This water treatment device further comprises the first flow variable valve A2-1 and the second regulating valve A3-1; Said first flow variable valve A2-1 is arranged between cyclone sediment pond 1 and the horizontal sedimentation tank 2, and the said second regulating valve A3-1 is arranged between cyclone sediment pond 1 and the chemical oil remover 3.
Preferably, this water treatment device further comprises turbid ring heat absorbing water well B1 and strainer pump group B2, is successively set on horizontal sedimentation tank 2 and chemical oil remover 3, and between the strainer 4.
Preferably; The utility model further comprises cooling tower 5, turbid ring enfleurage well 6, periodical feeding pump group 7 and self-cleaning filter 8; Cooling tower 5, turbid ring enfleurage well 6, periodical feeding pump group 7 and self-cleaning filter 8 link to each other successively, and cooling tower 5 links to each other with strainer 4.
Adopt the technical scheme of the utility model; At least has following beneficial effect: adopt horizontal sedimentation tank and chemical oil remover parallel connection as secondary sedimentation oil removing facility; Steel-making hot rolling workshop turbid circulating water is handled; The processing water yield of properly distributed horizontal sedimentation tank and chemical oil remover makes full use of the treatment effect of horizontal sedimentation tank and chemical oil remover, makes the processing power maximization of each treatment facility.
Description of drawings
The water treatment device sketch chart of Fig. 1 the utility model.
Embodiment
For fully understanding the present invention's purpose, characteristic and effect,, the present invention is elaborated by following concrete embodiment.
The utility model adopts horizontal sedimentation tank and chemical oil remover parallel connection as secondary sedimentation oil removing facility, and steel-making hot rolling workshop turbid circulating water is handled.Particularly; Primary sedimentation effluent quality to cyclone sediment pond or a scale pit detects; According to what of oleaginousness wherein; The processing water yield of properly distributed horizontal sedimentation tank and chemical oil remover makes full use of the treatment effect of horizontal sedimentation tank and chemical oil remover, makes the processing power maximization of each treatment facility.The utility model is applicable to common steel-making hot rolling workshop turbid circulating water, particularly SS (suspended solid)≤1200mg/L, the turbid circulating water of oil≤32mg/L.
Specify the device of the utility model below.As shown in Figure 1, equipment used of the present invention is all commercial conventional equipment.A kind of water treatment device; Comprise cyclone sediment pond 1 (scale pit); Horizontal sedimentation tank 2; Chemical oil remover 3 and strainer 4, cyclone sediment pond 1 water outlet is pipe connection horizontal sedimentation tank 2 water inlets and chemical oil remover 3 water inlets simultaneously, and horizontal sedimentation tank 2 water outlets and chemical oil remover 3 water outlets are pipe connection strainer 4 water inlets simultaneously.
Preferably, cyclone sediment pond 1 water outlet is connected to horizontal sedimentation tank 2 water inlets through pipeline A1, A2, and cyclone sediment pond 1 water outlet is connected to chemical oil remover 3 water inlets through pipeline A1, A3.Pipeline A1 is provided with force (forcing) pump A1-1; Be respectively arranged with the first flow variable valve A2-1 and the second regulating valve A3-1 on pipeline A2 and the A3; Through force (forcing) pump A1-1, with the first flow variable valve A2-1 and the second regulating valve A3-1; The water outlet in cyclone sediment pond 1 can a part get into horizontal sedimentation tank 2 processing, and another part gets into chemical oil remover 3 and handles.Handle in the chemical oil remover 3 and use coagulating agent and oil flocculant, can commercially obtain as the conventional treatment agent that uses in this area.The staple of coagulating agent is an aluminium iron polychloride, aluminum oxide quality content 8-10%, red stone mass content 1-2%.The staple of oil flocculant is the anionic polyacrylamide of weight-average molecular weight 1,000 ten thousand-2,000 ten thousand.
The water yield that gets into horizontal sedimentation tank 2 and chemical oil remover 3 respectively can be regulated according to the oleaginousness of cyclone sediment pond 1 (scale pit) water outlet oleaginousness and strainer 4 water inlets.When oleaginousness was high in the water, the ratio that gets into chemical oil remover 3 increased, and the ratio that gets into horizontal sedimentation tank 2 reduces; The ratio that when oleaginousness in the water is low, gets into horizontal sedimentation tank 2 increases, and the ratio that gets into chemical oil remover 3 reduces.According to the method described above, in the water of controlled filter device 4 water inlets oleaginousness smaller or equal to 20mg/L.For example when cyclone sediment pond 1 water outlet oleaginousness during more than or equal to 30mg/L, the water yield that gets into horizontal sedimentation tank 2 be smaller or equal to 70%, and the water yield of entering chemical oil remover 3 is more than or equal to 30%; When cyclone sediment pond 1 water outlet oleaginousness during less than 30mg/L, more than or equal to 25mg/L, the water yield that gets into horizontal sedimentation tank 2 be greater than 70%, smaller or equal to 90%, and the water yield of entering chemical oil remover 3 is less than 30%, more than or equal to 10%; When cyclone sediment pond 1 water outlet oleaginousness during less than 25mg/L, more than or equal to 20mg/L, the water yield that gets into horizontal sedimentation tank 2 be greater than 90%, smaller or equal to 100%, and the water yield of entering chemical oil remover 3 is less than 10%, more than or equal to 0%.
Preferably, strainer 4 adopts high rate filter.This high rate filter is commercially available conventional high rate filter, for example adopts the strainer of the filtrate of two or three different densities, makes flow velocity can reach 30～40m/h.
Usually, high rate filter influent quality general requirement suspended substance 80～100mg/L, oil 10～20mg/L.Oleaginousness can satisfy the requirement of high rate filter influent quality smaller or equal to 20mg/L in the water of the utility model controlled filter device 4 water inlets.
Preferably, horizontal sedimentation tank 2 water outlets are connected strainer 4 water inlets with chemical oil remover 3 water outlets through pipeline B.On pipeline B, be disposed with turbid ring heat absorbing water well B1 and strainer pump group B2.The effect of strainer pump group B2 is that strainer 4 is sent in the water among turbid ring heat absorbing water well B1 pressurization, so the platform number of the pump of strainer pump group B2 do not have special stipulation, as long as can satisfy the pressurization needs, for example can select 6 pumps.
The water outlet of horizontal sedimentation tank 2 water outlets and chemical oil remover 3 water outlets is got into the strainer 4 from strainer 4 water inlets by strainer pump group B2 pressurization and filters from flowing into turbid ring heat absorbing water well B1.
Preferably, the utility model further comprises cooling tower 5, turbid ring enfleurage well 6, periodical feeding pump group 7 and self-cleaning filter 8.Cooling tower 5 water inlets connect strainer 4 water outlets, and cooling tower 5 water outlets connect turbid ring enfleurage well 6, on the connecting tube of turbid ring enfleurage well 6 and self-cleaning filter 8, are provided with periodical feeding pump group 7.After strainer 4 filtration treatment, the water outlet of strainer 4 water outlets utilizes strainer pump group B2 to produce overbottom pressure and gets into cooling the cooling tower 5 from cooling tower 5 water inlets.The utility model adopts conventional cooling tower, and the used type of cooling also is conventional method of cooling.
After cooling tower 5 cools off; The water outlet of cooling tower 5 water outlets is from flowing into turbid ring enfleurage well 6; By 7 pressurizations of periodical feeding pump group, the water outlet of turbid ring enfleurage well 6 gets in the filter rinsed 8 carries out filtration treatment, send user's (for example continuous casting workshop and hot rolling workshop) to recycle then then.Periodical feeding pump group 7 is provided with according to the technology customer need.
Set forth the utility model through concrete embodiment below, one skilled in the art will appreciate that this should not be understood that the restriction to the utility model claim scope.
The measuring method of oleaginousness is in following examples: the infrared spectrophotometry according to standard GB/T16488-1996 (mensuration of water quality petroleum-type and vegetable and animals oils) is measured.The measuring method of suspended solid is in following examples: GB/T 11901-89 (mensuration of water quality suspended substance) weighting method.
The turbid circulating water parameter that present embodiment is handled is following: SS (suspended solid) 1200mg/L, oily 32mg/L.
Above-mentioned turbid circulating water is with flow 9233m
3/ h flows into cyclone sediment pond 1 through sluice, in cyclone sediment pond 1, carries out primary sedimentation and handles.The primary sedimentation water outlet of sampling cyclone sediment pond 1 water outlet, recording this water outlet oleaginousness according to as above method is 30mg/L.
Force (forcing) pump A1-1 has 7 pumps, is set to Q=1850m
3/ h, H=32m, the adjustment first flow variable valve A2-1 and the second regulating valve A3-1, the water outlet 70% of cyclone sediment pond 1 water outlet gets into the water inlet entering chemical oil remover 3 of horizontal sedimentation tank 2,30% from chemical oil remover 3 from the water inlet of horizontal sedimentation tank 2.The turbid circulating water that gets into horizontal sedimentation tank 2 carries out conventional precipitation process.Get into the turbid circulating water of chemical oil remover 3, add the amount adding oil flocculant of coagulating agent, 0.5mg/L according to the amount of 12mg/L.
In the horizontal sedimentation tank 2 with chemical oil remover 3 in after the precipitation process turbid circulating water respectively from separately water outlet from flowing into turbid ring heat absorbing water well B1.Take a sample water among the turbid ring heat absorbing water well B 1, recording this water outlet oleaginousness according to as above method is 20mg/L.
Strainer pump group B2 has 6 pumps, is set to Q=2000m altogether
3/ h H=62m, turbid circulating water gets into high rate filter 4 from turbid ring heat absorbing water well B1 and filters.Under the overbottom pressure effect that strainer pump group B2 produces, the water outlet of high rate filter 4 water outlets gets into cooling the cooling tower 5 from cooling tower 5 water inlets, and cooling back water temperature is≤32 ℃.Periodical feeding pump group 7 is made as 5 groups according to the user, first group: Q=305m
3/ hH=175m, second group: Q=305m
3/ h H=175m, the 3rd group: Q=330m
3/ h H=95m, the 4th group: Q=800m
3/ h H=65m, the 5th group: Q=1300m
3/ h H=145m.The water outlet of turbid ring enfleurage well 6 is respectively organized pumping action by periodical feeding pump group 7, gets into respectively in the filter rinsed 8 separately to carry out filtration treatment, send user's hot rolling workshop and continuous casting workshop to recycle then.Water to carrying out in the filter rinsed 8 after the filtration treatment carries out sampling and measuring, obtains following result: suspended solid＜20mg/L, oil≤3mg/L.
Embodiment 2-11
Embodiment 2-11 adopts and embodiment 1 essentially identical technology, and difference is, the difference of oleaginousness after handling according to the turbid circulating water primary sedimentation, and adjustment gets into the water yield ratio of horizontal sedimentation tank 2 and chemical oil remover 3.Specifically see table 1.
Table 1
Water to carrying out in the filter rinsed 8 after the filtration treatment carries out sampling and measuring, and obtain following result: water outlet all can reach suspended substance＜20mg/L, oil≤3mg/L
What of back oleaginousness the utility model handle according to the turbid circulating water primary sedimentation; Regulate the flow that gets into horizontal sedimentation tank 2 and chemical oil remover 3 respectively, the ability that makes full use of each treatment facility realizes the adjusting to water quality, makes system configuration just right; Occupation of land economizes, investment is little; New water consumption is little, and operational and administrative expenses is low, has reached to invest rationally, move purpose effective, efficient energy-saving.
Claims (5)
1. water treatment device; Comprise cyclone sediment pond (1); Horizontal sedimentation tank (2), chemical oil remover (3) and strainer (4) is characterized in that; Cyclone sediment pond (1) links to each other with chemical oil remover (3) pipeline with horizontal sedimentation tank (2) simultaneously, and horizontal sedimentation tank (2) links to each other with strainer (4) pipeline with chemical oil remover (3) simultaneously.
2. water treatment device according to claim 1 is characterized in that, said water treatment device further comprises force (forcing) pump (A1-1), is arranged on cyclone sediment pond (1), and between horizontal sedimentation tank (2) and the chemical oil remover (3).
3. water treatment device according to claim 2; It is characterized in that; Said water treatment device further comprises first flow variable valve (A2-1) and second regulating valve (A3-1); Said first flow variable valve (A2-1) is arranged between cyclone sediment pond (1) and the horizontal sedimentation tank (2), and said second regulating valve (A3-1) is arranged between cyclone sediment pond (1) and the chemical oil remover (3).
4. water treatment device according to claim 1 is characterized in that, this water treatment device further comprises turbid ring heat absorbing water well (B1) and strainer pump group (B2), is successively set on horizontal sedimentation tank (2) and chemical oil remover (3), and between the strainer (4).
5. according to each described water treatment device of claim 1-4; It is characterized in that; This water treatment device further comprises cooling tower (5), turbid ring enfleurage well (6), periodical feeding pump group (7) and self-cleaning filter (8); Wherein cooling tower (5), turbid ring enfleurage well (6), periodical feeding pump group (7) and self-cleaning filter (8) link to each other successively, and cooling tower (5) links to each other with strainer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200284705U CN202430074U (en) | 2012-01-18 | 2012-01-18 | Water treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200284705U CN202430074U (en) | 2012-01-18 | 2012-01-18 | Water treatment device |
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| CN202430074U true CN202430074U (en) | 2012-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104710070A (en) * | 2015-02-28 | 2015-06-17 | 江苏高科物流科技股份有限公司 | Water treatment device for cooling tower |
| CN104986893A (en) * | 2015-07-03 | 2015-10-21 | 江苏永钢集团有限公司 | Steelmaking cooling water purifying and recycling device |
| CN105836932A (en) * | 2016-06-12 | 2016-08-10 | 贵州晨辉达矿业工程设计有限公司 | Method for treating wastewater containing sediment |
| CN109205819A (en) * | 2018-11-22 | 2019-01-15 | 宝钢工程技术集团有限公司 | Compact turbid circulating water treating stations |
| CN109205910A (en) * | 2018-11-22 | 2019-01-15 | 宝钢工程技术集团有限公司 | Compact turbid circulating water treating stations |
| CN114635031A (en) * | 2022-03-17 | 2022-06-17 | 西安石油大学 | Quenching water treatment monitoring system and method |
| CN115093057A (en) * | 2022-07-20 | 2022-09-23 | 武汉钢铁有限公司 | Method for treating continuous casting turbid ring wastewater by using converter flue gas washing circulating water sewage |
-
2012
- 2012-01-18 CN CN2012200284705U patent/CN202430074U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104710070A (en) * | 2015-02-28 | 2015-06-17 | 江苏高科物流科技股份有限公司 | Water treatment device for cooling tower |
| CN104986893A (en) * | 2015-07-03 | 2015-10-21 | 江苏永钢集团有限公司 | Steelmaking cooling water purifying and recycling device |
| CN105836932A (en) * | 2016-06-12 | 2016-08-10 | 贵州晨辉达矿业工程设计有限公司 | Method for treating wastewater containing sediment |
| CN109205819A (en) * | 2018-11-22 | 2019-01-15 | 宝钢工程技术集团有限公司 | Compact turbid circulating water treating stations |
| CN109205910A (en) * | 2018-11-22 | 2019-01-15 | 宝钢工程技术集团有限公司 | Compact turbid circulating water treating stations |
| CN114635031A (en) * | 2022-03-17 | 2022-06-17 | 西安石油大学 | Quenching water treatment monitoring system and method |
| CN115093057A (en) * | 2022-07-20 | 2022-09-23 | 武汉钢铁有限公司 | Method for treating continuous casting turbid ring wastewater by using converter flue gas washing circulating water sewage |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120912 Termination date: 20210118 |
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