CN101417839A - Corrosion inhibitor formula for crystallizer soft water system in steel works and use method thereof - Google Patents
Corrosion inhibitor formula for crystallizer soft water system in steel works and use method thereof Download PDFInfo
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- CN101417839A CN101417839A CNA2008101436686A CN200810143668A CN101417839A CN 101417839 A CN101417839 A CN 101417839A CN A2008101436686 A CNA2008101436686 A CN A2008101436686A CN 200810143668 A CN200810143668 A CN 200810143668A CN 101417839 A CN101417839 A CN 101417839A
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Abstract
The invention relates to an inhibiter formulation used for a steel plant crystallizer water softener system, which comprises the raw materials with the following weight percent contents: 4.0-6.0 percent of 2-phosphonate butane-1, 2, 4-tricarboxylic acid, 4.0-6.0 percent of hydroxyl ethylidene diphosphonic acid, 3.0-5.0 percent of sodium molybdate, 0.5-1.5 percent of ZnSO4.7H2O, 0.1-0.3 percent of benzotriazole, 9.0-11.0 percent of NaOH, 24.0-26.0 percent of acrylic acid/hydroxypropyl acrylate/2-acrylamide-2-methyl propane sulfonic acid polymer and water as the rest. The adoption of the formulation can reduce the corrosion rate of steel to be lower than 0.05mm/a and the corrosion rate of copper to be lower than 0.002mm/a, simultaneously prevent the scale formation on the water side of a crystallizer, reduce the maintenance frequency of key devices and improve the output and quality of the product.
Description
[technical field]
The invention belongs to the water treatment substance technical field, relate to and a kind ofly can prevent crystallizer water side deposition and corrosive corrosion inhibitor formula for crystallizer soft water system in steel works and using method thereof.
[background technology]
The crystallizer soft water system in steel works technical process as shown in Figure 1, the running route of water is: from passing through the water pump pump in the water cooling pond to crystallizer, be back to water cooling pond by crystallizer through interchanger, water in the water cooling pond need add medicine to be handled, the main material that water contacted in this system is A3 carbon steel and red copper, supply water temperature is less than 35 ℃ during work, about 45 ℃ of return water temperatures.Because the soft water that crystallizer soft water system in steel works uses is owing to hardness, basicity are all very low, this water quality corrodibility is strong especially, easily causes the crystallizer water side deposition, has reduced the work-ing life of key equipment, overhaul of the equipments frequency height has reduced the output and the quality of product.
[summary of the invention]
In order to overcome the above-mentioned shortcoming of prior art, the invention provides a kind ofly the erosion rate of iron and steel can be reduced to below the 0.05mm/a, the erosion rate of copper is reduced to below the 0.002mm/a, simultaneously can prevent the crystallizer water side deposition, reduce the repair rate of key equipment, improve the output of product and the corrosion inhibitor formula for crystallizer soft water system in steel works and the using method thereof of quality.
The technical solution adopted for the present invention to solve the technical problems is: a kind of corrosion inhibitor formula for crystallizer soft water system in steel works, each raw material and weight percent content thereof in its prescription are: 2-phosphonic acids butane-1,2,4-tricarboxylic acid are 4.0～6.0,1-Hydroxy Ethylidene-1,1-Diphosphonic Acid is 4.0～6.0, Sodium orthomolybdate is 3.0～5.0, ZnSO
4.7H
2O is 0.5～1.5, and benzotriazole is 0.1～0.3, and NaOH is 9.0～11.0, and vinylformic acid/Propylene glycol monoacrylate/2-acrylamido-2-methyl propane sulfonic acid multipolymer is 24.0～26.0, and all the other are water.
The using method of corrosion inhibitor formula for crystallizer soft water system in steel works, it adds concentration is 70～90mg/L.The dosing method of inhibiter adopts the continuous dosing mode or impacts dosing method, and total phosphorous is 1.5～3.5mg/L in the water of dosage maintenance crystallizer soft water system.
The invention has the beneficial effects as follows: use the present invention the erosion rate of iron and steel can be reduced to below the 0.05mm/a, the erosion rate of copper is reduced to below the 0.002mm/a, simultaneously can prevent the crystallizer water side deposition, reduce the repair rate of key equipment, improve the output and the quality of product.
[description of drawings]
Fig. 1 is a crystallizer soft water system in steel works technological process block-diagram of the present invention.
[embodiment]
The present invention is further described below in conjunction with embodiment:
A kind of corrosion inhibitor formula for crystallizer soft water system in steel works, each raw material and weight percent content thereof in the prescription are: 2-phosphonic acids butane-1,2,4-tricarboxylic acid are 5.0, and 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid is 5.0, and Sodium orthomolybdate is 4.0, ZnSO
4.7H
2O is 1.0, and benzotriazole is 0.2, and NaOH is 10.0, and vinylformic acid/Propylene glycol monoacrylate/2-acrylamido-2-methyl propane sulfonic acid multipolymer is 25.0, and all the other are water.The China invites the person is with this soft water corrosion inhibitor formula called after HS232YL, the production method of soft water inhibiter HS232YL of the present invention is: the one, and produce and prepare: by the requirement of scheduling of production table, the weight that converses every kind of material component according to proportioning and the production of soft water inhibiter HS232YL, and open material requistion to raw material storage neck material; Check whether production apparatus such as pumping pipe, platform scale etc. are complete, and guarantee accurate and cleaning; Check whether reactor cleans, whether motor, agitator can works better; Perform to produce and prepare record.The 2nd, weighing:, take by weighing the weight of the required various component raw material of every still according to practical situation; And carry out the weighing record.The 3rd, compound process: elder generation is with the H of specified quantity
2O adds in the reactor, starts agitator motor, slowly adds Sodium orthomolybdate, NaOH, ZnSO
4.7H
2O, benzotriazole stirred after 60 minutes, treated its dissolving.Successively 2-phosphonic acids butane-1,2,4-tricarboxylic acid (PBTCA), 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP), vinylformic acid/Propylene glycol monoacrylate/2-acrylamido-2-methyl propane sulfonic acid multipolymer (AA/HPA/AMPS) are added in the reactor again; After adding all materials, restir 30 minutes static 5 minutes, filters the back barrelling with mixed solution; Dress is finished, and can prepare quality inspection; Perform record of production simultaneously.The 4th, check and judge: notify the quality inspection center to carry out the finished product sampling by operator and detect, for guaranteeing composite quality, should randomly draw by the finished product rule of taking a sample during sampling; During sampling, elder generation fully stirs evenly, and inserts dark 2/3 place of bucket with stopple coupon again and gets full liquid level sample, must not materials for every barrel to be less than 200g; Detected result is rechecked if there is an index defective, if having an index defective again, then this batch product is a unacceptable product.
The corrosion inhibitor formula for crystallizer soft water system in steel works using method is: the concentration that adds of soft water inhibiter HS232YL of the present invention is 70～90mg/L; Its dosing method adopts the continuous dosing mode or impacts dosing method, and total phosphorous is 1.5～3.5mg/L in the water of dosage maintenance crystallizer soft water system.
Use treatment effect of the present invention to be: use of the present invention can guarantee that crystallizer soft water system in steel works medium carbon steel, copper, stainless erosion rate and interchanger fouling resistance value are well below national standard---GB50050-95 " State Standard of the People's Republic of China's Design of Circulation Cooling Water Treatment standard ".
Treatment effect can reach as the following table standard:
| Project | Unit | Standard |
| Corrosion of carbon steel speed | mm/a | ≤0.125 |
| Copper corrosion speed | mm/a | ≤0.005 |
| Corrosion of Stainless Steel speed | mm/a | ≤0.005 |
| Fouling resistance | M 2·K/W | <1.72×10 -4 |
Claims (3)
1, a kind of corrosion inhibitor formula for crystallizer soft water system in steel works, it is characterized in that: each raw material and weight percent content thereof in its prescription are: 2-phosphonic acids butane-1,2,4-tricarboxylic acid are 4.0～6.0,1-Hydroxy Ethylidene-1,1-Diphosphonic Acid is 4.0～6.0, and Sodium orthomolybdate is 3.0～5.0, ZnSO
47H
2O is 0.5～1.5, and benzotriazole is 0.1～0.3, and NaOH is 9.0～11.0, and vinylformic acid/Propylene glycol monoacrylate/2-acrylamido-2-methyl propane sulfonic acid multipolymer is 24.0～26.0, and all the other are water.
2, a kind of using method of corrosion inhibitor formula for crystallizer soft water system in steel works is characterized in that: it adds concentration is 70～90mg/L.
3, the using method of corrosion inhibitor formula for crystallizer soft water system in steel works as claimed in claim 2, it is characterized in that: the dosing method of inhibiter adopts the continuous dosing mode or impacts dosing method, and total phosphorous is 1.5～3.5mg/L in the water of dosage maintenance crystallizer soft water system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101436686A CN101417839B (en) | 2008-11-21 | 2008-11-21 | Corrosion inhibitor formula for crystallizer soft water system in steel works and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101436686A CN101417839B (en) | 2008-11-21 | 2008-11-21 | Corrosion inhibitor formula for crystallizer soft water system in steel works and use method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101417839A true CN101417839A (en) | 2009-04-29 |
| CN101417839B CN101417839B (en) | 2010-09-08 |
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| CN2008101436686A Expired - Fee Related CN101417839B (en) | 2008-11-21 | 2008-11-21 | Corrosion inhibitor formula for crystallizer soft water system in steel works and use method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897928A (en) * | 2012-11-02 | 2013-01-30 | 江海环保股份有限公司 | Novel high-efficient environment-friendly water treatment agent |
| CN102923868A (en) * | 2012-11-15 | 2013-02-13 | 天津大学 | Composite corrosion and scale inhibitor for reclaimed water as circulating cooling water of power plant |
| CN103938213A (en) * | 2014-04-24 | 2014-07-23 | 姬光河 | Antirust solution |
| CN104086007A (en) * | 2014-07-31 | 2014-10-08 | 威海翔宇环保科技有限公司 | Corrosion and scale inhibitor for heat supply network |
| CN111807528A (en) * | 2020-07-25 | 2020-10-23 | 江苏姚氏环保技术有限公司 | Efficient scale remover and preparation method thereof |
-
2008
- 2008-11-21 CN CN2008101436686A patent/CN101417839B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897928A (en) * | 2012-11-02 | 2013-01-30 | 江海环保股份有限公司 | Novel high-efficient environment-friendly water treatment agent |
| CN102897928B (en) * | 2012-11-02 | 2014-05-07 | 江海环保股份有限公司 | High-efficient environment-friendly water treatment agent |
| CN102923868A (en) * | 2012-11-15 | 2013-02-13 | 天津大学 | Composite corrosion and scale inhibitor for reclaimed water as circulating cooling water of power plant |
| CN103938213A (en) * | 2014-04-24 | 2014-07-23 | 姬光河 | Antirust solution |
| CN104086007A (en) * | 2014-07-31 | 2014-10-08 | 威海翔宇环保科技有限公司 | Corrosion and scale inhibitor for heat supply network |
| CN111807528A (en) * | 2020-07-25 | 2020-10-23 | 江苏姚氏环保技术有限公司 | Efficient scale remover and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101417839B (en) | 2010-09-08 |
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Inventor after: Xiao Bo Inventor after: Li Zhihui Inventor after: Cheng Aiping Inventor after: Cai Xichun Inventor after: Lin Hui Inventor before: Xiao Bo Inventor before: Li Zhihui Inventor before: Cheng Aiping Inventor before: Cai Xichun |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: XIAO BO LI ZHIHUI CHENG AIPING CAI XICHUN TO: XIAO BO LI ZHIHUI CHENG AIPING CAI XICHUN LIN HUI |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20100908 Termination date: 20211121 |