Combined dust removal device for continuous casting flame cutting machine and application thereof

Abstract

The invention provides a combined dust removal device for a continuous casting flame cutting machine and an application thereof. The combined dust removal device comprises a dust removal cover which is arranged on sliding rails on the two sides of the flame cutting machine in a sliding mode. Steel billets are arranged under the dust removal cover; the upper side of the dust removal cover is connected with one end of an air pipe, and the other end of the air pipe is connected with a draught fan; water mist nozzles are uniformly distributed in the dust removal cover; water curtain nozzles are symmetrically arranged in the dust removal cover; the dust removal cover can relatively slide on the slide rail, and the dust removal cover can be moved to a working area to form a relatively closed space; water mist can be sprayed through the nozzles to adsorb generated flue gas, and adsorbed particles can be sucked out through the air pipe; the structure is simple and efficient; and if the generated flue gas is too heavy, the water curtain nozzles on the side wall can be started to make and the water curtain nozzles oppositely spray the water, so that a water wall can be formed, the flue gas and the water mist are combined more thoroughly, and the dust removal effect is better.

Description

technical field [0001] The invention relates to a combined dust removal device for a continuous casting torch cutter and its application, belonging to the technical field of dust removal equipment. Background technique [0002] In steel production, the continuous casting slab is cut after reaching a fixed length. Due to the high temperature of the slab (about 900°C), most manufacturers use flame cutting machines for segmental cutting, and use high-calorific value gas to burn to melt the section of the slab, resulting in violent reactions. A large amount of smoke and dust is generated, especially when cutting high alloy, stainless steel and heat-resistant steel, it is necessary to add ultra-fine iron powder to blow into the cutting flame. The powder combustion will generate a lot of heat and generate more smoke and dust. Diffuse into the interior and top of the factory building, causing pollution to the working environment, and discharge outside the factory building will caus...

AI Technical Summary

Problems solved by technology

"However, this patent uses dust suction to remove dust, which can only remove part of the dust with small particles. The dust removal is not thorough, and a large amount of dust will still exist around the working area, causing damage and destruction to workers and the environment.

At the same time, due to the different steel types, the amount of dust generated during fire cutting is also different. The above-mentioned device cannot be aimed at different dust removal situations. According to the size of the dust amount, it can selectively open dust suction, atomization dust reduction or combined dust removal to The effect of completely removing dust

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