CN108911238A - A kind of continuous casting secondary cooling water adding of agent method - Google Patents
A kind of continuous casting secondary cooling water adding of agent method Download PDFInfo
- Publication number
- CN108911238A CN108911238A CN201810771656.1A CN201810771656A CN108911238A CN 108911238 A CN108911238 A CN 108911238A CN 201810771656 A CN201810771656 A CN 201810771656A CN 108911238 A CN108911238 A CN 108911238A
- Authority
- CN
- China
- Prior art keywords
- agent
- continuous casting
- cooling water
- secondary cooling
- pam
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/16—Nature 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a kind of continuous casting secondary cooling water adding of agent method, including oil removing, chemical flocculation, filtering processing step, the present invention is by improving adding of agent method：Change the adding concentration, add PAC and PAM in scale pit, the PAM of chemical oil remover is added to position change of degreaser JC-164, increase high efficiency particulate air filter cleaning agent XF-1502, the abundant effect for playing the water treatment facilities such as chemical oil remover, 3#Continuous casting secondary cooling water water supply quality is improved, and reduces 3#Conticaster spray nozzle clogging rate, it is ensured that the production of conticaster safety and stability improves its product quality, obtains the abundant affirmation of production user.
Description
Technical field
The present invention relates to a kind of continuous casting secondary cooling water adding of agent methods, belong to water treatment field.
Background technique
The continuous casting secondary cooling water of steelshop produces cooling use mainly for conticaster, needs during production run to circulation
Suspended matter in water, hardness and system inhibition, fouling etc. are controlled, wherein live spray nozzle clogging situation directly affects steel-making
The quality of factory's product.There are three main chemical feeding points for entire technical process：Scale pit, chemical oil remover and cold water well.Process flow
Figure is as shown in Fig. 4.
Water Quality Control Indexes are as shown in the table：
Due to turbid circulating water system long period, oepration at full load, multiple pollutant alternately pollutes, and constantly accumulates, and forms a large amount of oil
Mud attachment is wrapped in iron oxide dust and covering slag residue, deposits and be attached to the positions such as waterline and cooling tower pool wall,
Equipment and pipeline is caused to generate mud underdeposit corrosion；Meanwhile nutrient source of the oil substances as microorganism, make microbial growth,
A large amount of Microbial slimes are generated, and microbial adherence forms natural protection to various fungicide in the generation of mud underdeposit corrosion
Layer；In addition, due to the particularity of continuous casting turbid circulating water system production technique, when water circulating pump, stops when opening, and transient flow is caused between start-stop
Amount is big, and pressure is high, washes away to the attachment in equipment and pipeline, short time a large amount of bulk bur is such as（Greasy filth, iron oxide
Skin, covering slag, corrosion product and microorganism viscosity mud etc.）It falls off, dirt is got lodged on piping filter and nozzle, causes strainer and nozzle
Blocking, influences to produce.There are three the main water quality indicators for causing continuous casting spray nozzle clogging, and one is suspended matter（SS mg/l）, one
It is oil content（mg/l）, one be total hardness（mg/l）.Continuous casting secondary cooling water adding of agent method is improved, its water supply quality is improved,
Reducing 3# conticaster spray nozzle clogging rate is that this patent will solve the problems, such as.
Summary of the invention
The present invention is intended to provide a kind of continuous casting secondary cooling water adding of agent method plays the water such as chemical oil remover by improving
The effect of processing equipment further improves water supply quality, reduces conticaster spray nozzle clogging rate, it is ensured that conticaster safety and stability is raw
It produces, improves its product quality.
In order to achieve the purpose that the reason of reducing conticaster spray nozzle clogging rate, first having to clear spray nozzle clogging.By to existing
The various factors such as field water supply quality, production environment, water treatment facilities are analyzed, and the water quality indicator of spray nozzle clogging is caused to have suspension
Object, oil content, total hardness, and total hardness therein can be up to standard by adjusting the rate of water make-up of demineralized water, suspended matter, oil content are then
Needing could be up to standard by adjusting a variety of methods such as place, dosage that add of medicament.The present invention passes through to adding of agent method
It improves：Change adding concentration, adding PAC and PAM in scale pit, throw the PAM of chemical oil remover for degreaser JC-164
Add position change, increase high efficiency particulate air filter cleaning agent XF-1502 etc., give full play to the work of the water treatment facilities such as chemical oil remover
With continuous casting secondary cooling water water supply quality is improved.
The present invention is achieved by the following technical solutions：
A kind of continuous casting secondary cooling water adding of agent method, including oil removing, chemical flocculation, filtering processing step, specifically include following
Content：
（1）According to on-site actual situations, degreaser is added into scale pit, changes degreaser and adds concentration, is reinforced scale pit and is removed
Oily effect, while scale pit oil slick is removed in time, prevent influence of the oil slick to subsequent treatment process；
（2）Scale pit adds flocculant：
Aluminium polychloride is added in scale pit（PAC）And polyacrylamide（PAM）Flocculant enhances iron scale and covering slag in the point
Sedimentation capacity, mitigate the operating pressure of chemical oil remover；
Flocculant is added in scale pit and chemical oil remover respectively, to be added twice；
（3）Chemical oil remover adds flocculant：
When adding flocculant, change chemical oil remover PAM adds position, increases the reaction time of PAM, is conducive to alumen ustum
（Refer to suspended matter agglomerate, it is better that alumen ustum is formed, and effect of settling is better）Generation, improve the sedimentation effect of chemical oil remover, mitigate
The operating pressure of high rate filter；
（4）Reinforce the cleaning to high rate filter and impregnate work, increases high efficiency particulate air filter cleaning agent, prevent filtrate hardened, mention
The cycle of operation of high-pass filter and effect.
In the above method, step（1）In, degreaser includes surfactant or alkali cleaning auxiliary agent.
In the above method, change chemical oil remover PAM dosing pump quantity, the PAM dosing pump setting of the chemical oil remover
It two, prevents dosing failure of pump from adding of agent being caused to interrupt, coupling cock is set, guarantees the duration of adding of agent.
In the above method, when adding degreaser into scale pit, the concentration that adds of degreaser JC-164 is increased by 0.3ppm
It is added to 0.8ppm-1.5ppm, reinforces scale pit deoiling effect.
In the above method, PAM in chemical oil remover is added into position and shifts to an earlier date 8m-10m, adding of agent point is in chemical oil remover
At water inlet pipe, the reaction time of PAM was increased to 90 minutes by 30 minutes, improves the sedimentation effect of chemical oil remover.
In the above method, step（4）In, cleaning agent includes acidic cleaner, alkaline cleaner, complexing cleaning agent or surface
Active cleaning agent.
In the above method, increases high efficiency particulate air filter cleaning agent XF-1502, prevent filtrate hardened, improve the operation of filter
Period and effect.
Beneficial effects of the present invention：
The present invention is by improving adding of agent method：The effect of the water treatment facilities such as chemical oil remover has been given full play to,
Continuous casting secondary cooling water water supply quality is improved, and reduces conticaster spray nozzle clogging rate, it is ensured that the production of conticaster safety and stability mentions
Its high product quality, obtains the abundant affirmation of production user.
Detailed description of the invention
Fig. 1 is the process flow chart of adding of agent method of the invention.
Fig. 2 is the comparison diagram that comparative example and embodiment 1 improve front and back suspended matter.
Fig. 3 is the comparison diagram that comparative example and embodiment 1 improve front and back oil content.
Fig. 4 is the process flow chart of continuous casting secondary cooling water in the prior art.
Specific embodiment
The present invention is further illustrated below by embodiment, but is not limited to following embodiment.
As shown in Figure 1, a kind of continuous casting secondary cooling water adding of agent method provided by the invention, cold by two cold pumps, conticaster
But, scale pit, promotion, chemical oil remover, hot water heating, filter, cooling tower, the processing of cold water well, improved content are mainly wrapped
It includes：（1）PAC, PAM are added in scale pit；（2）PAM is added in chemical oil remover；（3）High-efficient cleaning is added in the filter
Lotion XF-1502；（4）Increase the concentration that degreaser JC-164 is added in scale pit.
Below by specific implementation process, the present invention will be further described：
Medicament used in medicament JC-164, XF-1502 for adding in the method for the present invention and early period process derives from Jiangsu
The peak Jing Kexia Environmental Protection Technology Co., Ltd, directly purchase gained.
Comparative example：
Continuous casting secondary cooling water adding of agent method is carried out according to original process, by two cold pumps, conticaster cooling, scale pit, promotion, change
Oil expeller, hot water heating, filter, cooling tower, the processing of cold water well are learned,
(1) degreaser is added in scale pit, and the concentration that adds of degreaser JC-164 is 0.3ppm；
(2) the PAM of chemical oil remover position is added to carry out according to original process：Original adds position in chemical oil remover, PAM's
Reaction time is 30 minutes；
（3）1 is set by chemical oil remover PAM dosing pump.
Embodiment 1：
(1) the concentration that adds of degreaser JC-164 is increased into 1.2ppm by 0.3ppm, reinforce scale pit deoiling effect, prevent from floating
Influence of the oil to subsequent treatment process；
(2) two kinds of medicaments of PAC and PAM are added in scale pit（PAC dosage 15ppm, PAM dosage 2ppm）, enhance iron scale and guarantor
Slag is protected in the sedimentation capacity of the point, mitigates the operating pressure of chemical oil remover；
(3) the PAM of chemical oil remover is added into position and shift to an earlier date 9m；Original adds position in chemical oil remover, and the medicament after change is thrown
It adds some points at chemical oil remover water inlet pipe；
It is 90 minutes that the reaction time of PAM was increased by original 30 minutes, is conducive to alumen ustum（Refer to suspended matter agglomerate, alumen ustum is formed
Better, effect of settling is better）Generation, improve the sedimentation effect of chemical oil remover, mitigate the operating pressure of high rate filter；
(4) reinforce the cleaning to high rate filter and impregnate work, increase high efficiency particulate air filter cleaning agent XF-1502,
I.e. filter adds two kinds of medicaments（JC-164 dosage 0.5ppm, XF-1502 dosage 1.5ppm）, prevent filtrate plate
Knot, improves the cycle of operation and the effect of filter；
(5) chemical oil remover PAM dosing pump is increased to 2 by 1, prevent dosing failure of pump from adding of agent being caused to interrupt, setting connection
Port valve guarantees the duration of adding of agent.Also PAM is added in original process, and dosing pump is only now increased by one, PAM is thrown
Position is added to be changed.
After this method is improved, work well：After steel-making continuous casting secondary cooling water adding of agent method is improved, feedwater quality energy
Enough meet production requirement.Reduce 3#Continuous casting spray nozzle clogging rate, reduces filter backwash time and number of backwashes, reduces and set
The standby maintenance frequency, meets user's production requirement, product quality problem caused by having prevented due to water quality and equipment damage are asked
Topic.
Fig. 2, Fig. 3 are to improve front and back water quality comparison：
As seen from Figure 2, after adding method thereof improves, suspended matter is meeting upper limit value 30mg/L in secondary cooling water（User requires to refer to
Scale value）Under the premise of, than reducing before improving, by the equal 28mg/L in Yuanping City, average 11mg/L is dropped to, while field device reduces nozzle
Clogging, improvement effect are obvious.
As seen from Figure 3, after adding method thereof improves, oil content is meeting upper limit value 10mg/L in secondary cooling water（User wants
Seek index value）Under the premise of, than reducing before improving, 1.8mg/L is dropped to by former 6.8mg/L, improvement effect is obvious.
Claims (7)
1. a kind of continuous casting secondary cooling water adding of agent method, including oil removing, chemical flocculation, filtering processing step, it is characterised in that
Including the following contents：
（1）According to on-site actual situations, degreaser is added into scale pit, changes degreaser and adds concentration, is reinforced scale pit and is removed
Oily effect, while scale pit oil slick is removed in time, prevent influence of the oil slick to subsequent treatment process；
（2）Scale pit adds flocculant：
Aluminium polychloride and polyacrylamide flocculant are added in scale pit, enhances iron scale and covering slag in the sedimentation energy of the point
Power mitigates the operating pressure of chemical oil remover；
（3）Chemical oil remover adds flocculant：
When adding flocculant, change chemical oil remover PAM adds position, increases the reaction time of PAM, is conducive to alumen ustum
It generates, improves the sedimentation effect of chemical oil remover, mitigate the operating pressure of high rate filter；
（4）Reinforce the cleaning to high rate filter and impregnate work, increases high efficiency particulate air filter cleaning agent, prevent filtrate hardened, mention
The cycle of operation of high-pass filter and effect.
2. continuous casting secondary cooling water adding of agent method according to claim 1, it is characterised in that：Step（1）In, degreaser packet
Include surfactant or alkali cleaning auxiliary agent.
3. continuous casting secondary cooling water adding of agent method according to claim 1, it is characterised in that：Oil removing is added into scale pit
When agent, the concentration that adds of degreaser JC-164 is increased into 0.8ppm-1.5ppm by 0.3ppm, reinforces scale pit deoiling effect.
4. continuous casting secondary cooling water adding of agent method according to claim 1, it is characterised in that：The chemical oil remover
PAM dosing pump is arranged two, prevents dosing failure of pump from adding of agent being caused to interrupt, and coupling cock is arranged, guarantees holding for adding of agent
Continuous property.
5. continuous casting secondary cooling water adding of agent method according to claim 1, it is characterised in that：By PAM in chemical oil remover
It adds position and shifts to an earlier date 8m-10m, adding of agent point was increased at chemical oil remover water inlet pipe, by the reaction time of PAM by 30 minutes
By 90 minutes, the sedimentation effect of chemical oil remover is improved.
6. continuous casting secondary cooling water adding of agent method according to claim 1, it is characterised in that：Step（4）In, cleaning agent packet
Include acidic cleaner, alkaline cleaner, complexing cleaning agent or surface-active cleaning agent.
7. continuous casting secondary cooling water adding of agent method according to claim 1, it is characterised in that：Increase high efficiency particulate air filter cleaning
Agent XF-1502 prevents filtrate hardened, improves the cycle of operation and the effect of filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810771656.1A CN108911238A (en) | 2018-07-13 | 2018-07-13 | A kind of continuous casting secondary cooling water adding of agent method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810771656.1A CN108911238A (en) | 2018-07-13 | 2018-07-13 | A kind of continuous casting secondary cooling water adding of agent method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108911238A true CN108911238A (en) | 2018-11-30 |
Family
ID=64412134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810771656.1A Pending CN108911238A (en) | 2018-07-13 | 2018-07-13 | A kind of continuous casting secondary cooling water adding of agent method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108911238A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110590048A (en) * | 2019-09-20 | 2019-12-20 | 中冶东方工程技术有限公司 | Continuous casting turbid circulating water treatment equipment and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050244315A1 (en) * | 2004-04-30 | 2005-11-03 | Greaves Michael D | Solid product dissolver and method of use thereof |
| CN101597119A (en) * | 2008-06-03 | 2009-12-09 | 新疆德蓝科技有限公司 | Integrating technology of water supplying and saving and sewage reusing technology system in petroleum and petrochemical industry |
| KR20100104748A (en) * | 2009-03-19 | 2010-09-29 | 현대제철 주식회사 | Water treatment method of continuous casting machine |
| CN101851046A (en) * | 2010-06-21 | 2010-10-06 | 吴静璇 | Device for deep treatment and complete recovery of coking wastewater and application method thereof |
| CN202415298U (en) * | 2012-01-16 | 2012-09-05 | 中冶东方工程技术有限公司 | System capable of purifying muddy water circularly |
| CN104261609A (en) * | 2014-10-10 | 2015-01-07 | 重庆钢铁股份有限公司 | Continuous casting turbid circulating water treatment system and technology |
-
2018
- 2018-07-13 CN CN201810771656.1A patent/CN108911238A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050244315A1 (en) * | 2004-04-30 | 2005-11-03 | Greaves Michael D | Solid product dissolver and method of use thereof |
| CN101597119A (en) * | 2008-06-03 | 2009-12-09 | 新疆德蓝科技有限公司 | Integrating technology of water supplying and saving and sewage reusing technology system in petroleum and petrochemical industry |
| KR20100104748A (en) * | 2009-03-19 | 2010-09-29 | 현대제철 주식회사 | Water treatment method of continuous casting machine |
| CN101851046A (en) * | 2010-06-21 | 2010-10-06 | 吴静璇 | Device for deep treatment and complete recovery of coking wastewater and application method thereof |
| CN202415298U (en) * | 2012-01-16 | 2012-09-05 | 中冶东方工程技术有限公司 | System capable of purifying muddy water circularly |
| CN104261609A (en) * | 2014-10-10 | 2015-01-07 | 重庆钢铁股份有限公司 | Continuous casting turbid circulating water treatment system and technology |
Non-Patent Citations (1)
| Title |
|---|
| 中国钢铁工业环保工作指南编辑委员会: "《中国钢铁工业环保工作指南》", 31 January 2005, 冶金工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110590048A (en) * | 2019-09-20 | 2019-12-20 | 中冶东方工程技术有限公司 | Continuous casting turbid circulating water treatment equipment and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101417843B (en) | Secondary cooling water recycling process of steel plant continuous casting | |
| CN104451026B (en) | A kind of converter clean circulating water system on-line cleaning prefilming method | |
| CN109650567B (en) | Self-adaptive hardness-reducing type ash water scale inhibition and dispersion agent for coal gasification black ash water and application | |
| CN110282810A (en) | A kind of graywater treating method in coal gasification scouring water recycling system | |
| CN101157869A (en) | Crude oil decalcifying agent and preparation method thereof | |
| CN208700836U (en) | A kind of sewage proposes mark modernization system | |
| CN108911238A (en) | A kind of continuous casting secondary cooling water adding of agent method | |
| CN201109731Y (en) | Water continuous treater | |
| CN105906075B (en) | One kind being applied to BF Gas Washing water zero-emission water treatment technology | |
| CN201817347U (en) | Gas generating sewage water treatment unit | |
| CN216890433U (en) | Converter hot-stewing slag wastewater treatment system | |
| CN114853240A (en) | Natural balance ultrahigh concentration multiple and zero discharge control method for circulating cooling water system | |
| CN210825557U (en) | Power plant auxiliary engine cooling water treatment system | |
| CN209259868U (en) | A kind of device suitable for coal gas buck sofening treatment | |
| CN212559784U (en) | Industrial recirculated cooling water zero release processing system | |
| CN211419886U (en) | Anti-scaling system of wet slag removal system of thermal power plant | |
| CN211419839U (en) | Industrial circulating water drainage recycling treatment device | |
| CN209721803U (en) | Cyclohexanone is saponified salkali waste and removes hard device for coal water slurry gasification buck | |
| CN107628715B (en) | High-hardness and high-alkali circulating cooling water system water quality stabilization combined treatment system and method | |
| CN210001713U (en) | industrial circulating cooling water treatment system for methanol | |
| CN114291936A (en) | Converter hot-stewing slag wastewater treatment system | |
| CN103893981A (en) | Heat-transmission concentration device with online antiscaling and descaling properties and operation method thereof | |
| CN208843882U (en) | Thermal power plant's water resource optimization based on water balance utilizes system | |
| CN205856198U (en) | A kind of waste water is as recirculated cooling water water replanishing device | |
| CN206219345U (en) | A kind of processing system for improving Texaco gasifier buck water quality |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181130 |