Bottom sealing device of band steel aerosol cooling device

Abstract

The invention relates to a bottom sealing device of a band steel aerosol cooling device, which comprises an air knife (1), an air knife cylinder (2), an air inlet (3), a stretching mechanism (4), a band steel inlet (5), a water collecting sump (7), and a watertight shuttle (8). The water collecting sump (7) is a square ring shaped sump which comprises an inclined bottom plate (70), a water outlet (71), an inner square plate (72), a outer plate (73), a bottom plate (74) and an inner arc-shaped plate (75); and the nozzle of the air knife is a ring-shaped nozzle which comprises an upper air nozzle (11), a lower air nozzle (12), a lower arc-shaped air nozzle (13), a side air nozzle (14) and an upper arc-shaped air nozzle (15). The bottom sealing device of the band steel aerosol cooling device has the advantages of good sealing effect, simple equipment and stable working, can reduce equipment maintenance load, has high promotion value in the field of quick aerosol cooling after plating, and can be applied to hot galvanizing, aluminum and zinc hot dipping and zinc layer alloying production lines, and also be suitable to other occasions needing aerosol cooling.

Description

technical field [0001] The invention belongs to the technical field of strip steel cooling, and in particular relates to a strip steel gas mist cooling equipment component. Background technique [0002] Hot-dip galvanized (hot-dip galvanized) steel strip is generally cooled by jet cooling, because the cooling rate is low and the cooling time is long, in order to ensure that the strip steel is completely cooled after galvanizing, the height of the cooling tower is very high, which will aggravate the Instability and uneven coating quality, while the speed of the unit is also difficult to increase. In recent years, in order to meet the requirements for post-plating cooling of coated heat-treated steel sheets and thick-gauge steel sheets, a cooling technology with two-phase flow as the medium that can significantly reduce the length of the cooling section and improve the quality of the strip—air mist cooling technology has begun Used in the production of thick gauge and high st...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a bottom sealing device for strip steel gas mist cooling equipment, so as to solve the poor sealing effect in the prior art, and it is necessary to increase air cooling or reheating between the gas mist cooling device and the zinc pot device defect

Images