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Control method of converter evaporated cooling system

A technology of vaporization cooling and control method, which is applied in the direction of using electric mode for temperature control, manufacturing converters, etc., can solve the problems of reducing equipment life, bursting water leakage, unevenness, etc. The effect of meeting the production rhythm

Inactive Publication Date: 2020-07-31
BEIJING SHOUGANG AUTOMATION INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most evaporative cooling systems often ignore the control of the inlet flow of deaerator desalted water while controlling the temperature and pressure, which makes the effect of deaerator deoxygenation unsatisfactory
The vaporization cooling system is corroded for a long time, which will reduce the life of the equipment, and also cause pipe blockage and pipe burst and water leakage accidents caused by uneven heating

Method used

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  • Control method of converter evaporated cooling system
  • Control method of converter evaporated cooling system
  • Control method of converter evaporated cooling system

Examples

Experimental program
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Embodiment Construction

[0051] The invention provides an automatic control method of a vaporization cooling system. The cold state module and the steelmaking module are separately controlled to realize different controls in different stages of the vaporization cooling system. The liquid level control adopts the subsection automatic control scheme, and the steam drum water supply adopts the frequency conversion pressure difference replenishment control. The pressure control of the deaerator is realized by a steam inlet regulating valve and a deaerator steam outlet relief regulating valve, and the control of the deaerator make-up water flow is realized by the deaerator make-up water regulating valve. The whole process of automatic control of the vaporization cooling system of a specific steelmaking converter is described in detail below as an example. The specific steps of the entire implementation process are described in detail below.

[0052] 1. Install and configure the required control hardware,...

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Abstract

The invention discloses a control method of a converter evaporated cooling system, and belongs to the technical field of steel making automatic control. A cold state module and a steel making module are used for achieving control separately so as to achieve stability of the evaporated cooling system. According to the technical scheme adopted for achieving stability of the liquid level of a steam pocket, through segmented measurement, the water supply flow required by various stages in the oxygen lance blowing process is calculated so as to adjust liquid level control of the steam pocket and control of a deaerator. The problems that in the steel making blowing process, fluctuation of the liquid level of the steam pocket is large and the deoxidization effect is poor are effectively solved, meanwhile, the production rhythm of steel making is met well, and production efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of automatic control of steelmaking, and in particular relates to an automatic control method for a cold-state module of vaporization cooling, a steelmaking module, a steam drum liquid level and a deaerator. Background technique [0002] The converter vaporization cooling system is an important part of steelmaking, and the stable and safe operation of the converter vaporization cooling system is one of the important conditions to ensure the normal production of the steelmaking converter. Due to the complexity of actual steelmaking, the vaporization cooling system will expose many problems. Such as inaccurate liquid level control, oxidation corrosion inside the pipeline, serious blockage, and insufficient steam recovery. [0003] During the blowing period of the converter, the heat from the cover skirt to the steam drum increases, causing a large amount of desalted water in the steam drum to vaporize, causin...

Claims

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Application Information

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IPC IPC(8): C21C5/46G05D23/19
CPCC21C5/46C21C5/4646G05D23/19
Inventor 杜立智王鹏赵长春李天祥何骁李晓宇彭卫革马杰
Owner BEIJING SHOUGANG AUTOMATION INFORMATION TECH