Method and system for carrying out online scale inhibition, bacteria killing and descaling by continuous casting crystallizer

Abstract

The invention discloses a method and a system for carrying out online scale inhibition, bacteria killing and descaling by a continuous casting crystallizer. The method comprises the following steps: a, adding and diluting high-concentration ozone water in a pipeline on a water inlet end of the continuous casting crystallizer, and entering the continuous casting crystallizer along a water flow direction; b, respectively carrying out ozone water concentration online detection on pipelines on the water inlet end and a water outlet end of the continuous casting crystallizer, and regulating the adding amount of the high-concentration ozone water in real time according to ozone water concentration detecting results of the water inlet end and the water outlet end; c, feeding the ozone water passing through the continuous casting crystallizer from the water outlet end of the continuous casting crystallizer to a main water outlet pipeline through the pipeline, and discharging; d, wiping off a soft scale layer remained on a surface layer of the continuous casting crystallizer. By applying the method disclosed by the invention, online scale inhibition, bacteria killing and descaling of a domestic continuous casting crystallizer can be realized, continuous casting in a long period can be realized, the pouring steel quantity of continuous casting of the domestic continuous casting crystallizer can be increased, the running cost is low, the practicability is strong, and a new mode of less dosing or no dosing in a water treatment system in metallurgical industry can be realized.

Description

technical field [0001] The invention belongs to the field of metallurgy, and relates to continuous casting in the metallurgical industry, a section steel production process and a water treatment system, in particular to production interruptions and efficiency reductions in cast steel production interruption and efficiency reduction caused by continuous casting of crystallizers in the production process of metallurgical continuous casting due to fouling of cooling surfaces of crystallizers technology solutions. Background technique [0002] Metallurgical continuous casting technology was introduced into China from abroad in the 1980s. Its technology has changed the backward technology of traditional steel casting die casting, and realized the cast steel products with many specifications, large output and high yield. Although the continuous casting technology is quite mature, its work efficiency is still restricted by various factors. Taking a billet continuous casting mold as ...

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Problems solved by technology

[0003] Aiming at the problem of uneven heat dissipation caused by fouling on the surface of continuous casting crystallizers in the prior art, the present invention provides a method and system for online scale inhibition, biocidal and descaling of continuous casting crystallizers to realize the On-line scale inhibition, biocidal and descaling, to achieve long-term continuous steel casting, improve the continuous steel casting capacity of domestic continuous casting crystallizer, in the water treatment system, it can realize a new mode of adding less or no medicine, Create a green and environmentally friendly new way for the steelmaking and continuous casting system in the metallurgical industry in the application of water treatment technology

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