Cold roller steel strip blowing and drawing type dust catching device

Abstract

The invention particularly relates to a cold-rolled steel strip push-pull dust collection device. The technical proposal is as follows: the device consists of upper nozzles (1), lower nozzles (2) and a suction hood (3). 1-3 upper nozzles (1) and 1-3 lower nozzles (2) are respectively arranged above or below the same side of a steel strip (4), the setting angle of the upper nozzles (1) and the lower nozzles (2) is adjustable, and the upper nozzles (1) and the lower nozzles (2) are connected with a compressed air source by pipelines; the suction hood (3) is arranged at the other side of the steel strip (4) and opposite to the upper nozzles (1) and the lower nozzles (2), and the suction hood (3) is connected with a dedusting pipeline. The gauge pressure of the compressed air source is 0.05-2MPa; the setting angle of the upper nozzles (1) and lower nozzles (2) includes that the vertical plane included angle alpha is 0-80 degrees, and the horizontal plane included angle beta is 15-165 degrees. The dust collection device has the advantages of good effect of collecting iron scale dusts on the steel strip surface, low energy consumption, simple structure and reliable operation.

Description

technical field [0001] The invention belongs to the technical field of dust source control devices. It specifically relates to a blowing-suction dust collection device for cold-rolled strip steel, especially for controlling the dust generated during the operation of cold-rolled strip steel. Background technique [0002] The cold rolling mill is the final finished product production plant in the iron and steel enterprise, and it is a finished material plant that produces products and benefits. No matter in terms of product quality requirements or environmental benefits, it is required that the cold rolling mill must be clean in the production process. [0003] The main parts that generate dust in the production process of cold rolling mills are pickling unit, skin pass unit and roller grinding unit, etc. Among them, the smoke and dust generated by the leveler and welding machine of the pickling unit are the most serious. Since the strip steel comes out of the hot rolling mil...

AI Technical Summary

Problems solved by technology

[0005] However, the dust control effect of the pickling unit and skin pass unit in the cold rolling mill is not satisfactory at present, because the loose iron oxide scale on the surface of the strip will fall off due to vibration during the high-speed operation of the strip, that is, it is not only in the straightening A large amount of dust is generated at the straightening machine, welding machine and stretch leveler, but there are different degrees of dust on the entire strip, and the dust source ranges widely

Therefore, it is not enough to install suction hoods on straightening machines, welding machines, stretching straightening machines, etc.

However, it is unreasonable to arrange suction hoods on the entire production line. On the one hand, this increases the investment cost and affects the production process. On the other hand, the air volume required for dust removal increases significantly, thereby increasing the consumption of electric energy and increasing Operating costs

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