An automatic adjustment device and adjustment method for the second throat of a converter

Abstract

The invention relates to an automatic adjustment device and adjustment method for the second throat of a converter, which belongs to the technical field of converter dust removal equipment and methods, and is used for automatic adjustment of the second throat of the converter. Its technical solution is: the present invention breaks through the traditional differential pressure control mode of the furnace mouth pressure sensor, adds a gas analyzer sensor, an oxygen analyzer sensor, an oxygen lance position sensor, and an oxygen regulating valve position sensor. The signal of the content and the position of the oxygen lance is the mark, and the throat hydraulic station is controlled by PLC. When the detection signals all meet the requirements of the conditions, the weight moves downward to the specified position. When any of the detection signals does not meet the conditions, the weight Go up and return to the initial position, so as to realize the automatic control and adjustment of the second throat of the converter. The invention is simple and practical, easy to maintain, safe and reliable, without cumbersome control procedures, effectively reduces the occurrence of accidents, greatly improves the gas recovery rate, and has remarkable economic benefits.

Description

technical field [0001] The invention relates to a device and method for automatically adjusting the Erwen throat of a converter, and belongs to the technical field of converter dedusting equipment and methods. [0002] Background technique: [0003] The dust removal device is an indispensable equipment for the converter. Among the various dust removal devices, there is a wet dust removal device driven by a fan with a power of 2800Kw. This dust removal device includes a vaporization cooling flue, a spray tower, a secondary venturi tube and a throat ( Abbreviation: Erwen throat), dehydrator, fan, three-way valve, water seal valve, V-shaped water seal, etc., among which Erwen throat is the core equipment for primary dust removal of the converter, and is the focus of the flue gas treatment condition. The key role of fine dust removal is related to flue gas purification and gas recovery. During the dust removal process, the Erwen throat should be automatically adjusted according ...

AI Technical Summary

Problems solved by technology

In production practice, it is found that this adjustment device and method has disadvantages such as complex structure of control equipment, cumbersome control process, difficult sensor maintenance, high failure rate, and sometimes affecting normal dust removal operation and production, and cannot meet the needs of rapid production development. The long-standing problem that restricts the dust removal work of the converter needs to be improved urgently

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