Air inlet control system of blast furnace blower

Abstract

The invention relates to an air inlet control system for a blast furnace blower, the control system comprises a blower air filter chamber, electric net rolling devices and filter screen covers, the electric net rolling devices are arranged at the top ends of the three surfaces of the air inlet side of the blower air filter chamber, and the filter screen covers on the three surfaces are respectively arranged in the electric net rolling devices; the telescopic control of the electric net rolling device on the filter net cover is facilitated; the service life of air filtering equipment is prolonged by optimizing the air inlet quality; by automatically controlling the gap between the air inlet dehumidifying and demisting plates, the air inlet resistance loss is reduced, and the operation efficiency of the fan is improved.

Description

technical field [0001] The invention relates to a control device, in particular to a blast furnace blower air intake control system, which belongs to the technical field of blast furnace blower unit control. Background technique [0002] The blast furnace blower is to compress the air, output hot air with a certain pressure and temperature, and send it to the blast furnace hot blast stove for ironmaking production. It is an extremely important power equipment in the ironmaking production process. The blower inlet is equipped with an air filter device, the purpose of which is to filter and separate large particles of dust and impurities in the air, and send relatively pure air to the compressor to do work, so as to prevent the air with high dust content from entering the fan and damage the fan blades, reducing Fan operating life. [0003] At present, air filter chambers and dehumidifiers are generally installed at the entrances of large-scale blast furnace ironmaking blower ...

AI Technical Summary

Problems solved by technology

The disadvantages of this setting are also highlighted: the air filter chamber filters the dust and impurities in the air through the filter cartridge, and further uses the control equipment to perform pulse pneumatic purge and dust removal on the filter cartridge in real time to improve the service life of the filter cartridge. When the content in the air increases suddenly, the floc adheres to the surface of the filter cartridge, which seriously affects the flow capacity of the filter cartridge, which is not conducive to the back-purging and self-cleaning of the filter cartridge itself, which increases the resistance loss of the air intake and reduces the operating efficiency of the fan.

At the same time, when the dehumidifier is not put into operation in autumn and winter, since the demist is generally installed, it cannot be moved to adjust the gap. Water and air are exchanged in a large area, the gap is fixed, and the air is throttled again, which seriously affects the air intake and flow area and efficiency of the fan

[0004] At present, the air filter chambers and dehumidifiers included in the air intake system of domestic blast furnace blower units are all conventional air filter cartridges, as well as conventional fixed dehumidification and defogging plates. Due to seasonal and regional factors, catkins and catkins in spring The dust is easily attached to the surface of the air filter cartridge in a large area, which seriously affects the air intake efficiency of the fan and the life of the filter cartridge; The wind passes through the demister plate of the dehumidifier, which is severely throttled and blocked, which affects the air intake and flow, and greatly reduces the operating efficiency of the fan

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