Blowing tube type inner blower

Abstract

The blowing tube type inner blower has servo motor for driving, inner blowing bogie mounted on the track on the bed and comprising driving mechansm, inner blowing valve and blowing nozzle-blowing pipe unit, clamping guide seat and guide unit. The inner blowing gas is compressed air, heated or unheated, and the blowing nozzle is extended into hot galvanized steel pipe to eliminate unsolidified zinc liquid. Using to steam boiler, dedusting apparatus and other auxiliary apparatus, no zinc dust is produced and the blow out matter is basically pure zinc, rather than zinc oxide, so that zinc consumption is greatly lowered and the work environment is improved.

Description

technical field [0001] The invention belongs to the field of shoe plating on metal materials, and relates to an internal blowing machine with a blowpipe, especially suitable for blowing and wiping treatment on the inner wall of a hot-dip galvanized steel pipe. Background technique [0002] At present, after hot-dip galvanized steel pipes are dipped in hot galvanizing at home and abroad, superheated steam, saturated steam, etc. are used as internal blowing media to blow and wipe the unsolidified zinc liquid on the inner wall of galvanized steel pipes. The steam pipe moves, and the end of the trolley or the steam pipe is connected with a trumpet-shaped mouthpiece. When the steel pipe to be blown is moved to the internal blowing station, the clamping cylinder clamps the steel pipe, and the cylinder pushes the trolley or steam pipe forward, so that the trumpet-shaped mouthpiece and the pipe to be blown are aligned. The end of the blown steel pipe is tightened, the valve controll...

AI Technical Summary

Problems solved by technology

The existing technology has the following disadvantages in the treatment of the inner wall of galvanized steel pipes: since the internal blowing gas adopts superheated steam and saturated steam, there must be a steam boiler in the auxiliary equipment, and at the same time, the unsolidified zinc liquid is turned into zinc dust, which is zinc oxide. Valuable zinc has become low-value zinc dust, so the consumption of zinc cannot be effectively reduced, which naturally increases the production cost; using superheated steam, saturated steam and other internal blowing media, it is necessary to add a series of steam boilers, dust removal devices, etc. Equipment: The trumpet-shaped mouthpiece is used, the mouthpiece does not enter the steel pipe, and the unsolidified zinc liquid is taken away by the gas flowing through the steel pipe. It is inevitable that the equipment has high power and high noise. There is a lot of dust during operation, and the working environment is bound to be harsh.

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