A kind of self-adaptive control method and device for dust reduction and purification in silicon steel hot rolling

Abstract

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. The method includes: step 11, calculating the spray speed range and spray angle range of the atomizing nozzle; step 12, determining the spray speed of the atomizing nozzle; step 13, calculating the droplet size and nozzle flow rate; step 14, Determine whether the particle size of the droplet is consistent with the particle size of the dust on site; Step 15, if it is inconsistent, return to Step 12 to re-determine the spray speed; Step 16, if it is consistent, use the nozzle flow rate and the spray rate The angle range is controlled, and the atomizing nozzle is controlled to carry out dust reduction and purification treatment on site. The invention determines the spraying speed of the atomizing nozzle according to the moving speed of the strip, the installation position and the minimum droplet height, and calculates the nozzle flow rate and the droplet size according to the speed. The spraying speed of the atomizing nozzle realizes the Efficient dust reduction and purification of on-site dust.

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] In the process of hot rolling of silicon steel, the secondary iron 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 iron oxide scale dust will be generated. Among them, the silicon element content of the dust is as high as 9%- 20%, the dust particle size range is 0.62μm~117.13μm (the median is about 21.73μm). The high silicon dust is very easy to scale on the rolling mill components such as the rolling mill arch and guide, 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 silicon dust will...

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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