A device for removing oxide fine iron powder on the surface of plate and strip

Abstract

The invention relates to a device for removing oxidized fine iron powder on the surface of plates and strips, comprising a support frame, a tensioning device, a purging device, a fixed vacuuming device, a three-degree-of-freedom movable vacuuming device, a purging room base, and a wind suction device. A dust collecting device, an electromagnetic relay dust collecting device and a dust suction pipe; the support frame includes a lower support frame and an upper fixed frame; the dust suction pipe includes a dust suction hose and a dust suction three-way pipe. In the invention, the lengths of the purging nozzles arranged side by side are shortened from the middle to the two sides in turn, and the V-shaped flow field is realized in the purging, the fine iron oxide powder can be blown to both sides of the strip, and the purging and The vacuum circulation improves the dust removal efficiency. The vacuum device can move and rotate freely to adapt to the bandwidth. The dust collector can collect most of the fine iron oxide powder together, which can effectively solve the problem that the purging device and the vacuum device cannot be closed. The circulation causes the tension leveling roller to press the remaining fine iron oxide powder into the surface of the strip, which leads to the problem of damage to the strip surface.

Description

technical field [0001] The invention relates to the technical field of surface treatment of plates and strips, in particular to a device for removing oxide fine iron powder on the surfaces of plates and strips. Background technique [0002] With the rapid development of my country's economic construction, the market demand for rolling mills with purging components is increasing. As we all know, in the straightening and tension leveling section of the pickling unit, cold-rolled strip steel will produce more fine iron oxide on the surface due to the change of the physical shape of the broken roller, the leveler and the tension leveler during operation. pink. If these fine iron oxide powders are not effectively collected, part of the iron oxide powder will be brought into the tension leveler, and the iron oxide powder will be pressed into the strip steel after being rolled by the tension leveler, resulting in indentations on the surface of the strip steel, and After pickling,...

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Problems solved by technology

[0004] In view of the above problems, the object of the present invention is to provide a device for removing fine iron powder on the surface of the plate and strip. By shortening the length of the nozzle from the middle in turn, a V-shaped flow field is realized in the purging, and the fine iron powder can be removed. Blowing to both sides of the strip, it can also realize the circulation of blowing and dust suction, improve the dust removal efficiency, the dust suction component can move freely and rotate to adapt to the bandwidth, and the dust collection component can gather most of the fine iron oxide powder together, which can Effectively solve the problem that the strip surface is damaged due to the failure of the purging component and the dust suction component to form a closed circulation, resulting in the remaining fine iron oxide powder being pressed into the surface of the strip by the stretching and leveling rollers

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