Smoke cooling control method and system in dedusting process of electric furnace

Abstract

The invention discloses a smoke cooling control method and system in the dedusting process of an electric furnace. The method includes the steps that a first smoke temperature value, a second smoke temperature value, a smoke flow value and a water flow value are detected in real time; PID temperature control and regulation are conducted according to an outlet ideal temperature value and the second smoke temperature value, and a PID temperature control output value is obtained; a PID temperature control output value is converted into a regulating coefficient which continuously changes within a preset numerical range; a required water amount value is calculated according to the smoke flow value, the first smoke temperature value and the outlet ideal temperature value; the result obtained by multiplying the regulating coefficient by the required water amount value is used as a set input value; PID water amount control and regulation are conducted according to the set input value and the water flow value, and then a PID water amount control output value is obtained; the PID water amount control output value is used as an opening control value, and then the opening of a flow regulating value of a water supply pipeline is regulated. By the adoption of the smoke cooling control method and system, the water amount can be accurately controlled to cool smoke.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to a flue gas cooling control method and system in the dust removal process of an electric furnace. Background technique [0002] At present, the main cooling method for the flue gas of the electric furnace dust removal system is: air cooling. Although the air-cooling method requires less equipment, occupies a small area, and does not require cooling water. However, due to the high temperature of the flue gas and the large amount of air required to cool the flue gas, the power of the mechanical air cooler, dust collector, fan, etc. is very large, so the one-time investment cost of the dust removal system is relatively large, and the power consumption of the dust removal system is high. Also very large. Contents of the invention [0003] The invention provides a flue gas cooling control method and system in the dust removal process of an electric furnace to solve the technical...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a flue gas cooling control method and system in the dust removal process of an electric furnace to solve the technical problem of high consumption cost caused by cooling the flue gas in the dust removal process of an electric furnace

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