Dust fall purification self-adaptation control method and device during silicon steel hot rolling

Abstract

The invention relates to the technical field of silicon steel hot rolling production, in particular to a dust fall purification self-adaptation control method and device during silicon steel hot rolling. The dust fall purification self-adaptation control method comprises the following steps: S11, calculating the jet velocity range and the jet angle range of an atomizing nozzle; S12, determining the jet velocity of the atomizing nozzle; S13, calculating the liquid drop particle size and the flow rate of the nozzle; S14, judging whether the liquid drop particle size is consistent with the particle size of onsite dust; S15, if not, returning to the step 12, and re-determining the jet velocity; and S16, if yes, controlling the atomizing nozzle to carry out dust fall purifying treatment on thesite according to the flow rate of the nozzle and the jet angle range. According to the movable speed and the mounting position of a plate and a strip and the lowest liquid drop height, the jet velocity of the atomizing nozzle is determined, the nozzle flow rate and the liquid drop particle size are calculated according to the jet velocity, and efficient dust fall purification on the site dust isrealized through the jet velocity of the atomizing nozzle.

Description

technical field [0001] The invention relates to the technical field of silicon steel hot rolling production, in particular to an adaptive control method and device for dust reduction and purification in silicon steel hot rolling. Background technique [0002] During the hot rolling process of silicon steel, the secondary oxide scale on the surface of the rolled material will be separated from the surface of the rolled material with the extrusion of the roll, and a large amount of high-silicon oxide scale dust will be generated, among which the silicon content of the dust is as high as 9%- 20%, the dust particle size ranges from 0.62 μm to 117.13 μm (the median is about 21.73 μm). However, high-silicon dust is very easy to scale on the rolling mill components such as the rolling mill archway and guide position, and corrode the mechanical and electronic components of the rolling mill. At the same time, the fine dust with a particle size of less than 10 μm in the high-silica d...

AI Technical Summary

Problems solved by technology

However, high-silicon dust is very easy to scale on rolling mill components such as the archway and guide position of the rolling mill, and corrode the mechanical and electronic components of the rolling mill.

At the same time, fine dust with a particle size of less than 10 μm in the high-silica dust will rise and disperse with the hot air generated during the hot rolling process, seriously deteriorating the workshop environment and damaging the health of the staff

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