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Method for debugging oxygen-rich gas adjustment system and putting it into operation

A regulation system and oxygen enrichment technology, applied in control/regulation system, blast furnace details, blast furnace, etc., can solve problems such as affecting blast furnace production, poor stability of oxygen content, and hidden dangers in the system

Active Publication Date: 2011-11-02
BEIJING SHOUGANG AUTOMATION INFORMATION TECH
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Problems solved by technology

At present, most of the iron and steel metallurgical industries in China use a set of oxygen adjustment system, and only one oxygen adjustment system is used. The stability of the oxygen adjustment by this system is poor, and there are hidden dangers in the system. When there is a problem in the system, it will directly affect the blast furnace. Production

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  • Method for debugging oxygen-rich gas adjustment system and putting it into operation
  • Method for debugging oxygen-rich gas adjustment system and putting it into operation
  • Method for debugging oxygen-rich gas adjustment system and putting it into operation

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Embodiment Construction

[0024] image 3 It is a specific implementation of the PID regulation and operation method. First, make preparations for the equipment, check the integrity of the regulating valve, the smoothness of the gas source pipeline, and the correct selection of the gas source. When the preparations are completed, Manually adjust the regulating valve. The normality of the manual adjustment not only ensures the normal stability of the equipment, but then performs automatic adjustment, and uses the micro-adjustment system to ensure the stability of the automatic adjustment.

[0025] (1) First confirm the operation of the two-way redundant system and ensure the oxygen-enriched pressure. The flow pneumatic membrane regulating valve is installed in the explosion-proof wall, and nitrogen is used as the working gas source of the regulating valve; the temperature is low in winter, and nitrogen is not used as the gas source. The phenomenon of air source freezing will occur, so as to ensure that ...

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Abstract

The invention discloses a method for debugging an oxygen-rich gas adjustment system and putting it into operation, and belongs to the technical field of blast furnace oxygen-rich gas adjustment and proportion integration differentiation (PID) adjustment control. The method comprises the following processes of inspecting if regulating valve equipment is integrated, inspecting if a gas source is normal, carrying out an adjustment control by manually operation, carrying out an automatic debugging test, putting equipment into operation and testing if the operation of the equipment is normal, and carrying out a fine adjustment according to a PID adjustment method. In the invention, an oxygen-rich gas flow is controlled through the processes of a pressure adjustment and a flow adjustment of oxygen-rich gas; a desired content of oxygen is set according to technological requirements; and through a PID adjustment, it is guaranteed that an oxygen-rich gas pressure is stable and a flow of oxygen-rich gas reaches a technologically required value. The method has the advantages of setting PID parameter values fast and having a guidance effect on large-scale blast furnaces adopting a double-PID adjustment system.

Description

technical field [0001] The invention belongs to the technical field of blast furnace oxygen enrichment adjustment and PID adjustment control, and in particular provides a method for debugging and putting into operation an oxygen enrichment adjustment system. For large-scale blast furnace oxygen-enriched dual PID adjustment control system, it is convenient and fast to check, debug and put into operation the oxygen-enriched flow and pressure adjustment to ensure the stability of the oxygen-enriched flow, thereby improving the smelting intensity of the blast furnace and contributing to the high output and high output of the blast furnace. Lay the foundation for stable production. Background technique [0002] For the metallurgical industry, the oxygen-enriched regulation and control system is one of the three major regulation and control systems for ironmaking blast furnaces in the metallurgical industry. Among them, the PID regulation system is the core of the oxygen-enrichmen...

Claims

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Application Information

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IPC IPC(8): C21B5/00G05D7/00G05D11/02
Inventor 王承钰孙里建王凤杰王坤邢文来倪志鹏
Owner BEIJING SHOUGANG AUTOMATION INFORMATION TECH
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