Automatic adjusting device and method for converter second venturi throat

Abstract

The invention belongs to the technical field of a converter dust removing device and method, and relates to an automatic adjusting device and method for a converter second venturi throat. The automatic adjusting device and method are used for carrying out automatic adjustment on the converter second venturi throat. According to the technical scheme, a micro differential pressure control manner of a traditional furnace mouth pressure sensor is broken through, a gas analysis meter sensor, an oxygen analysis meter sensor, an oxygen lance position sensor and an oxygen adjusting valve position sensor are additionally arranged, and signals of carbon monoxide content, oxygen content and oxygen lance position serve as marks. A throat hydraulic station is controlled through a PLC. When all the detection signals meet the condition requirement, a weight moves downwards to the regulated position, and when any one of the detection signals does not meet the condition, the weight moves upwards to reset to the original position, and thus the automatic control and adjustment of the converter second venturi throat are achieved. According to the automatic adjusting device and method, simplicity and practicability are achieved, maintaining is convenient, and safety and reliability are achieved. Complex control procedures are avoided, accidents are effectively reduced, the gas recycling rate is greatly increased, and obvious economic benefits are achieved.

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. Background technique: [0002] 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 to the f...

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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