CN105032956B - Laminar flow supplementary water blending method - Google Patents
Laminar flow supplementary water blending method Download PDFInfo
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- CN105032956B CN105032956B CN201510396108.1A CN201510396108A CN105032956B CN 105032956 B CN105032956 B CN 105032956B CN 201510396108 A CN201510396108 A CN 201510396108A CN 105032956 B CN105032956 B CN 105032956B
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Abstract
The invention relates to a laminar flow supplementary water blending method. The laminar flow supplementary water blending method comprises the following sequential steps that firstly, water of a laminar flow iron sheet pit sequentially flows through a laminar flow flat flow pool, a laminar flow primary water suction well, a laminar flow filter and a laminar flow secondary water suction well; secondly, when the water level in the laminar flow secondary water suction well exceeds an overflow opening, overflow water returns to the laminar flow iron sheet pit; thirdly, clean loop water is blended into the laminar flow iron sheet pit, and factory deep well water is blended into the laminar flow secondary suction well, wherein the step is characterized in that when the factory deep well water is blended into the laminar flow secondary water suction well, muddy loop prepared soft water, industrial fresh water and clean loop prepared soft water are also blended into the laminar flow secondary water suction well; fourthly, the blended water is conveyed to a water supply pump through the laminar flow secondary water suction well to be supplied to users; the quality of the water supplied to the users meets the requirement. By means of the laminar flow supplementary water blending method, reduction of the water quality due to evaporation and concentration is avoided, and the water is blended to be qualified at a time.
Description
Technical field
The present invention relates to a kind of hot continuous rolling laminar flow of water method for supplementing water, and in particular to a kind of laminar flow supplements water blending method.
Background technology
The turbid circular layer water system of hot continuous rolling is to provide qualified recirculated cooling water for hot continuous rolling factory section cooling production technology,
Circulating cooling moisture two systems are circulated use, after laminar flow produces draining by laminar flow scale pit precipitation, are directly entered A groups
Filter is filtered, and flows into secondary laminar flow absorbing well, absorption well after cooling down tower cooler in water after filter, is added by secondary section cooling feedwater pump group
Voltage stabilizing pond is depressed into, user is supplied.Laminar flow of water water quality requirement and actual water quality are shown in Table 1.
Table 1
| Project | Index | It is actual |
| Total hardness mg/L | ≤200 | 280~300 |
| Cl- mg/L | ≤150 | 450 |
| Electrical conductivity μ s/cm | ≤1500 | 4000 |
| PH | 7--9 | 8.5 |
| Float mg/L | ≤30 | 20~30 |
| Temperature DEG C | ≤32 | 28~32 |
As can be seen from the above table, total hardness, Cl-, electrical conductivity are exceeded, main cause be system layer stream moisturizing only have new water,
Phreatic water, adds to horizontal flow basin and is blent, and both moisturizing total hardnesss, Cl-, electrical conductivity are all higher, and it is undesirable to blend effect,
And auxiliary point is in horizontal flow basin, centre will through hot-tub, cooling tower, water cooling pond, then to user, during to evaporate, concentrate.Institute
With, horizontal flow basin blend it is qualified after, it is still exceeded to user.
The content of the invention
In order to overcome existing laminar flow to supplement the above-mentioned deficiency of water blending method, the present invention provide a kind of evaporation, concentrate it is less,
Avoid evaporating, concentrate reduction water quality, qualified laminar flow supplement water blending method is blent in feedwater once.
This laminar flow supplement water blending method include it is following successively the step of；
It is secondary that the water of I laminar flow scale pit flows successively through laminar flow horizontal flow basin, absorbing well, absorption well, Laminar Flow Filter, laminar flow of laminar flow
Absorbing well, absorption well；
Water level in the secondary absorbing well, absorption well of II laminar flow（Ordinary water level 4.8m-5.3m）More than overfall (general overfall water level
Overflow water when 5.4m) returns to laminar flow scale pit；
III net ring string water is blended into laminar flow scale pit, and plant area's phreatic water converts absorbing well, absorption well secondary into laminar flow；
It is characterized in that：
When plant area's phreatic water converts absorbing well, absorption well secondary into laminar flow, turbid ring is prepared soft water, industrial fresh water and net ring also and is prepared
Soft water converts absorbing well, absorption well secondary into laminar flow；
The secondary absorbing well, absorption well of IV laminar flow send the water after blending and supplies user with feed pump；Supply user's water quality total hardness be
150 ~ 180 mg/L, chlorine root are 130 ~ 140 mg/L, and electrical conductivity is 1300 ~ 1450 μ s/cm, and PH is 7.5 ~ 8.5, and float is 20
~ 30mg/L, temperature are 28 ~ 32 DEG C.
Above-mentioned laminar flow is supplemented in water blending method, uses following flows and water quality preferable in step I, and step III is with following
Flow it is preferable.
It is 50 ± 10m in the flow of step I laminar flow scale pit to the secondary absorbing well, absorption well of laminar flow3/ h, the total hardness of water quality is 280
~ 300 mg/L, chlorine root be 450 ± 10mg/L, electrical conductivity be 4000 ± 15 μ s/cm, PH be 8.5 ± 0.2, float be 20 ~
30mg/L, temperature are 28 ~ 32 DEG C；
The flow that laminar flow scale pit is blended in the net ring string water of step III is 30 ± 5m3/ h, plant area's phreatic water are converted into laminar flow two
The flow of secondary absorbing well, absorption well is 50 ± 10m3/h；
When turbid ring being prepared soft water, industrial fresh water and net ring preparing soft water and convert absorbing well, absorption well secondary into laminar flow, turbid ring prepares soft
The flow of water is 50 ± 10m3/ h, the flow of industrial fresh water is 33.3 ± 5 m3/ h, it is 20.8 ± 5 that net ring prepares the flow of soft water
m3/h。
Above-mentioned laminar flow is supplemented in water blending method, preferable with following water quality in step III.
The total hardness of wherein net ring string water is 150～180 mg/L, and chlorine root is 150～180 mg/L, and electrical conductivity is 1000
～1200 μ s/cm, water quality PH are 8.9～9.1, and temperature is 28～32 DEG C；
The total hardness of plant area's phreatic water is 350 ~ 380 mg/L, and chlorine root is 390 ~ 410 mg/L, and electrical conductivity is 770 ± 15 μ
S/cm, water quality PH are 7.6 ± 0.5, and temperature is 15 ~ 20 DEG C；
It is 2 ± 0.3mg/L that turbid ring prepares the total hardness of soft water, and chlorine root is 60 ± 5mg/L, and electrical conductivity is 800 ± 20 μ
S/cm, float are 9 ± 3mg/L, and PH is 12 ± 0.5mg/L, and temperature is 20～28 DEG C；
The total hardness of industrial fresh water water quality is 260 ± 15mg/L, and chlorine root is 60 ± 3mg/L, and electrical conductivity is 800 ± 10 μ s/
Cm, float are 8 ± 1mg/L, and PH is 7.5 ± 0.6mg/L, and temperature is 20～28 DEG C；
It is 40 ± 5mg/L that net ring prepares the total hardness of soft water, and chlorine root is 60 ± 5mg/L, and electrical conductivity is 800 ± 20 μ
S/cm, float are 8 ± 2mg/L, and PH is 10 ± 1.5mg/L, and temperature is 20～28 DEG C.
Beneficial effects of the present invention
Existing water resource is made full use of, and turbid ring is prepared into soft water, industrial fresh water soft water is prepared with net ring and be directly entered layer
Secondary absorbing well, absorption well is flowed, user is conveyed to by feed pump, both ensure that water supply quality, met onsite user and use water requirement, subtract
Lack as rate of water make-up increases caused by evaporation, concentration reason, saved the water yield, medicament equal energy source consumption.
Description of the drawings
Fig. 1 is that this laminar flow supplements water blending method schematic diagram.
In above-mentioned figure
1. laminar flow scale pit, 2. laminar flow horizontal flow basin, 3. absorbing well, absorption well of laminar flow, 4. Laminar Flow Filter,
5. the secondary absorbing well, absorption well of laminar flow, 6. net ring string water, 7. feed pump, 8. user, 9. plant area's phreatic water, 10. turbid ring
Soft water is prepared, 11. industrial fresh waters, 12. net rings prepare soft water.
Specific embodiment
The specific embodiment of the present invention is clearly illustrated in detail with reference to embodiment and its accompanying drawing, but the present invention's is concrete
Embodiment is not limited to following embodiments, and following embodiments is not limitation of the present invention.
Embodiment
The schematic diagram of the present embodiment referring to Fig. 1, including it is following successively（Process）Step；
I laminar flow scale pit（1）Water flow successively through laminar flow horizontal flow basin（2）, absorbing well, absorption well of laminar flow（3）, Laminar Flow Filter
（4）, the secondary absorbing well, absorption well of laminar flow（5）；
The secondary absorbing well, absorption well of II laminar flow（5）Middle water level（The present embodiment is 5m）More than overfall (the overflow saliva of the present embodiment
Position 5.4m) when overflow water return to laminar flow scale pit（1）；
III net ring string water（6）It is blended into laminar flow scale pit（1）, and plant area's phreatic water（9）Convert absorbing well, absorption well secondary into laminar flow
（5）；
It is characterized in that：
In plant area's phreatic water（9）Convert absorbing well, absorption well secondary into laminar flow（5）When, turbid ring is prepared soft water also（10）, industrial fresh water
（11）Soft water is prepared with net ring（12）Convert absorbing well, absorption well secondary into laminar flow（5）；
The secondary absorbing well, absorption well of IV laminar flow（5）Water after blending is sent and feed pump（7）Supply user（8）；Supply user（8）Water
The total hardness of matter be 150 ~ 180 mg/L, chlorine root be 130 ~ 140 mg/L, electrical conductivity be 1300 ~ 1450 μ s/cm, PH be 7.5 ~
8.5, float is 20 ~ 30mg/L, and temperature is 28 ~ 32 DEG C.
In the present embodiment
In step I laminar flow scale pit（1）To the secondary absorbing well, absorption well of laminar flow（5）Flow be 50 ± 10m3/ h, water quality it is total hard
Spend for 280 ~ 300 mg/L, chlorine root is 450mg/L, and electrical conductivity is 4000 μ s/cm, and PH is 8.5, float is 20 ~ 30mg/L, temperature
Spend for 28 ~ 32 DEG C；
In the net ring string water of step III（6）It is blended into laminar flow scale pit（1）Flow be 30m3/ h, plant area's phreatic water（9）Convert into
The secondary absorbing well, absorption well of laminar flow（5）Flow be 50m3/h；
Wherein net ring string water（6）Total hardness be 150～180 mg/L, chlorine root is 150～180 mg/L, and electrical conductivity is
1000～1200 μ s/cm, water quality PH are 8.9～9.1, and temperature is 28～32 DEG C；
Plant area's phreatic water（9）Total hardness be 350 ~ 380 mg/L, chlorine root be 390 ~ 410 mg/L, electrical conductivity be 770 μ s/
Cm, water quality PH are 7.6, and temperature is 15 ~ 20 DEG C；
Turbid ring is prepared soft water（10）, industrial fresh water（11）Soft water is prepared with net ring（12）Convert absorbing well, absorption well secondary into laminar flow
（5）When, turbid ring prepares soft water（10）Flow be 50m3/ h, industrial fresh water（11）Flow be 33.3 m3/ h, net ring prepare soft
Water（12）Flow be 20.8 m3/h；
Turbid ring prepares soft water（10）The total hardness of water quality is 2mg/L, and chlorine root is 60mg/L, and electrical conductivity is 800 μ s/cm, is hanged
Float is 9mg/L, and PH is 12mg/L, and temperature is 20～28 DEG C；
Industrial fresh water（11）The total hardness of water quality is 260mg/L, and chlorine root is 60mg/L, and electrical conductivity is 800 μ s/cm, is suspended
Thing is 8mg/L, and PH is 7.5mg/L, and temperature is 20～28 DEG C；
Net ring prepares soft water（12）The total hardness of water quality is 40mg/L, and chlorine root is 60mg/L, and electrical conductivity is 800 μ s/cm, is hanged
Float is 8mg/L, and PH is 10mg/L, and temperature is 20～28 DEG C.
Claims (3)
1. a kind of laminar flow supplements water blending method, it include it is following successively the step of；
I laminar flow scale pit（1）Water flow successively through laminar flow horizontal flow basin（2）, absorbing well, absorption well of laminar flow（3）, Laminar Flow Filter（4）、
The secondary absorbing well, absorption well of laminar flow（5）；
The secondary absorbing well, absorption well of II laminar flow（5）Overflow water when middle water level exceedes overfall returns to laminar flow scale pit（1）；
III net ring string water（6）It is blended into laminar flow scale pit（1）, and plant area's phreatic water（9）Convert absorbing well, absorption well secondary into laminar flow（5）；
It is characterized in that：
In plant area's phreatic water（9）Convert absorbing well, absorption well secondary into laminar flow（5）When, turbid ring is prepared soft water also（10）, industrial fresh water（11）
Soft water is prepared with net ring（12）Convert absorbing well, absorption well secondary into laminar flow（5）；
The secondary absorbing well, absorption well of IV laminar flow（5）Water after blending is sent and feed pump（7）Supply user（8）；Supply user（8）Water quality
Total hardness be 150 ~ 180 mg/L, chlorine root be 130 ~ 140 mg/L, electrical conductivity be 1300 ~ 1450 μ s/cm, PH be 7.5 ~ 8.5,
Float is 20 ~ 30mg/L, and temperature is 28 ~ 32 DEG C.
2. laminar flow according to claim 1 supplements water blending method, it is characterized in that：
In step I laminar flow scale pit（1）To the secondary absorbing well, absorption well of laminar flow（5）Flow be 50 ± 10m3/ h, the total hardness of water quality is
280 ~ 300 mg/L, chlorine root be 450 ± 10mg/L, electrical conductivity be 4000 ± 15 μ s/cm, PH be 8.5 ± 0.2, float be 20 ~
30mg/L, temperature are 28 ~ 32 DEG C；
In the net ring string water of step III（6）It is blended into laminar flow scale pit（1）Flow be 30 ± 5m3/ h, plant area's phreatic water（9）Convert into layer
Flow secondary absorbing well, absorption well（5）Flow be 50 ± 10m3/h；
Turbid ring is prepared soft water（10）, industrial fresh water（11）Soft water is prepared with net ring（12）Convert absorbing well, absorption well secondary into laminar flow（5）When,
Turbid ring prepares soft water（10）Flow be 50 ± 10m3/ h, industrial fresh water（11）Flow be 33.3 ± 5 m3/ h, net ring prepare soft
Water（12）Flow be 20.8 ± 5 m3/h。
3. water blending method is supplemented according to arbitrary described laminar flow in claim 1 or 2, be it is characterized in that：
In step III
Wherein net ring string water（6）Total hardness be 150～180 mg/L, chlorine root be 150～180 mg/L, electrical conductivity be 1000～
1200 μ s/cm, water quality PH are 8.9～9.1, and temperature is 28～32 DEG C；
Plant area's phreatic water（9）Total hardness be 350 ~ 380 mg/L, chlorine root be 390 ~ 410 mg/L, electrical conductivity be 770 ± 15 μ s/
Cm, water quality PH are 7.6 ± 0.5, and temperature is 15 ~ 20 DEG C；
Turbid ring prepares soft water（10）The total hardness of water quality is 2 ± 0.3mg/L, and chlorine root is 60 ± 5mg/L, and electrical conductivity is 800 ± 20 μ
S/cm, float are 9 ± 3mg/L, and PH is 12 ± 0.5mg/L, and temperature is 20～28 DEG C；
Industrial fresh water（11）The total hardness of water quality is 260 ± 15mg/L, and chlorine root is 60 ± 3mg/L, and electrical conductivity is 800 ± 10 μ s/
Cm, float are 8 ± 1mg/L, and PH is 7.5 ± 0.6mg/L, and temperature is 20～28 DEG C；
Net ring prepares soft water（12）The total hardness of water quality is 40 ± 5mg/L, and chlorine root is 60 ± 5mg/L, and electrical conductivity is 800 ± 20 μ
S/cm, float are 8 ± 2mg/L, and PH is 10 ± 1.5mg/L, and temperature is 20～28 DEG C.
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| JPH05123737A (en) * | 1991-11-05 | 1993-05-21 | Sumitomo Metal Ind Ltd | Method for cooling upper surface of high temperature steel sheet |
| US8349247B2 (en) * | 2007-05-11 | 2013-01-08 | Nippon Steel Corporation | Controlled cooling apparatus and cooling method of steel plate |
| JP5482365B2 (en) * | 2010-03-29 | 2014-05-07 | Ｊｆｅスチール株式会社 | Steel sheet cooling method, manufacturing method and manufacturing equipment |
| CN102248011A (en) * | 2011-06-02 | 2011-11-23 | 武汉钢铁(集团)公司 | Soft water seal-based flow-guide and drainage device used in after-rolling cooling process of hot-rolled steel strip |
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| CN104588419B (en) * | 2014-12-28 | 2016-05-18 | 鞍钢集团朝阳钢铁有限公司 | A kind of cooling recirculation system and method for cascade utilization hot-rolling water resource |
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