Double-path electromagnetic separating device for zinc slag in heat galvanizing liquid

Abstract

The invention discloses a Zn muck device in a double channel electromagnetic separating hot galvanizing liquor in the metal smelt technique field, which comprises the following parts: a double channel Zn liquor transportation device including two Zn liquor purification tanks, a electro-magnetism valve, a Zn liquor pump, a primary filter and a two-stage electro-magnetism deslagging device, wherein the front ends of two Zn liquor purification tanks are separately equipped with the electro-magnetism valve; the transporting Zn pipe of the Zn liquor pump immerses in the Zn cooker; two Zn liquor purification tanks are separately equipped with the primary filter; the middle ends of two Zn liquor purification tanks are separately equipped with two-stage electro-magnetism deslagging device including a inductance coil, a honeycomb ceramics pipe in the inductance coil , a thermal sleeve and a fire resistive material casing equipped with the inductance coil, the honeycomb ceramics pipe and the thermal sleeve. The invention reduces the Zn muck faults, which improves the quality.

Description

technical field [0001] The invention relates to a device in the technical field of metal smelting, in particular to a dual-channel electromagnetic separation device for zinc slag in a hot-dip galvanizing solution. Background technique [0002] Hot-dip galvanized steel sheets are widely used in the automotive industry due to their good corrosion resistance, weldability, coating and stamping properties. High surface quality is a must-have quality for hot-dip galvanized steel sheets as inner and outer panels for automobiles. Although the surface quality of hot-dip galvanized automotive sheets has been greatly improved in recent years, it is still a serious challenge to produce hot-dip galvanized sheets for automobiles without surface defects. [0003] Among the defects that affect the surface quality of hot-dip galvanized automobile sheets, zinc slag defects are the most important factor that reduces the surface quality of automobile sheets. Zinc slag is a Fe-Al-Zn ternary in...

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Problems solved by technology

[0004] After searching the literature of the prior art, it was found that the Chinese invention patent with the application number of 200510028881.9 relates to an electromagnetic purification device for hot-dip galvanizing liquid. The exchange effect of the flow makes the zinc liquid continuously flow through the porous ceramic tube in the device. In the process, the zinc slag is deposited on the wall of the ceramic tube under the action of the electromagnetic field to realize the continuous removal of the zinc slag, but the disadvantage is that the zinc slag cannot be removed. Most of the zinc liquid in the pot participates in the purification, and when the zinc slag absorbed by the wall of the ceramic tube submerged in the zinc liquid accumulates to a certain amount, the ceramic tube must be replaced. At this time, the electromagnetic purification can only be interrupted and cannot be completed. The continuous separation of zinc slag in the hot-dip galvanizing bath, and because the electromagnetic purification device mentioned in the patent 200510028881.9 can only work in a local area of ​​the zinc pot, there are certain deficiencies in the overall purification efficiency and effect of the zinc pot

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