Scale cleaning agent and cleaning method for cinder flushing water system of iron-making plant

A scaling cleaning agent and slag flushing water technology, applied in chemical instruments and methods, descaling and water softening, water/sludge/sewage treatment, etc. It is difficult to maintain the stability of circulating water quality and other problems, so as to achieve the effect of improving efficiency and flexibility of operation, low cost and reasonable formula design.

Active Publication Date: 2017-11-07
韶关市雅鲁环保实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, due to the complex scaling components in the slag flushing water system of ironworks, including calcium and magnesium carbonate scale, silicate scale, phosphate scale, iron oxide scale, aluminum scale, sulfur scale and other deposits, and Scaling types include inorganic scale, colloidal scale, etc. In the pr

Method used

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  • Scale cleaning agent and cleaning method for cinder flushing water system of iron-making plant
  • Scale cleaning agent and cleaning method for cinder flushing water system of iron-making plant
  • Scale cleaning agent and cleaning method for cinder flushing water system of iron-making plant

Examples

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Effect test

Embodiment 1

[0043] The scale cleaning agent of the slag flushing water system of the ironmaking plant in this embodiment includes the following components in terms of mass percentage:

[0044]

[0045] The scale cleaning agent is prepared by the following steps: under normal temperature and normal pressure, the components are first weighed according to the proportion, and then S-carboxyethyl sulfosuccinic acid and polyether polyaminomethylene phosphine Add salt N-sodium oxide into the enamel reactor, start the stirring motor, and then slowly add acrylic acid-hydroxypropyl acrylate copolymer, industrial grade hydrochloric acid, diethylenetriamine pentamethylene phosphoric acid and diisooctyl maleate Sodium ester sulfonate is then stirred and mixed for 2 hours to obtain a finished product. The finished product is sampled and tested, and packaged after the test is qualified. After the package is completed, it is transported to the finished product warehouse for storage, and production records a...

Embodiment 2

[0051] The scale cleaning agent of the slag flushing water system of the ironmaking plant in this embodiment includes the following components in terms of mass percentage:

[0052]

[0053] The preparation method of the fouling cleaning agent is the same as that of Example 1.

[0054] The cleaning method of the slag flushing water system of the ironmaking plant of this embodiment is the same as that of the first embodiment.

Embodiment 3

[0056] The scale cleaning agent of the slag flushing water system of the ironmaking plant in this embodiment includes the following components in terms of mass percentage:

[0057]

[0058]

[0059] The preparation method of the fouling cleaning agent is the same as that of Example 1.

[0060] The cleaning method of the slag flushing water system of the ironmaking plant of this embodiment is the same as that of the first embodiment.

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Abstract

The invention relates to a scale cleaning agent for a cinder flushing water system of an iron-making plant. The scale cleaning agent contains the following components in percentage by mass: 5%-45% of S-carboxyethyl thiosuccinic acid, 1%-45% of polyether polyamino methylene phosphonate N-oxide, 6%-40% of an acrylic acid-hydroxypropyl acrylate copolymer, 20%-35% of hydrochloric acid, 1%-25% of diethylenetriamine pentamethylene phosphate and 0.1%-3% of diisooctyl cis-butenedioate sulfonate, wherein the mass concentration of hydrochloric acid is 30%-36%. The invention further relates to a cleaning method for the cinder flushing water system of the iron-making plant. According to the scale cleaning agent, scale of equipment and pipelines in the cinder flushing water system of the iron-making plant can be effectively cleared; the scale cleaning agent has the advantages that the pertinence is strong, a formula is environment-friendly, the cost is low, and the preparation is simple; and the cleaning method has the advantages that the operation steps are simple and feasible, the cleaning is flexible, and use equipment is few.

Description

Technical field [0001] The invention relates to the technical field of chemical system cleaning, in particular to a scale cleaning agent and cleaning method for a slag flushing water system in an ironmaking plant. Background technique [0002] Blast furnace slag is a solid waste formed from gangue in ore, ash in fuel and non-volatile components in flux during the process of blast furnace ironmaking. It mainly contains oxides of calcium, silicon, aluminum, magnesium, and iron and a small amount Sulfide. [0003] The blast furnace slag water quenching process is currently the main method for processing blast furnace slag in my country's ironworks. This method uses circulating water to water quench the blast furnace slag through the slag flushing water system. See figure 1 , Which is a schematic diagram of the slag flushing water system of an existing ironmaking plant, and the arrow in the figure indicates the flow of circulating water. The slag flushing water system generally inclu...

Claims

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Application Information

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IPC IPC(8): C02F5/14C21B3/08
CPCC02F5/145C21B3/08
Inventor 肖波潘丽梅
Owner 韶关市雅鲁环保实业有限公司
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