Continuous hot-dip galvanized centrifugal cyclone slag removal device

Abstract

The invention discloses a continuous hot dip aluminum-zinc plating centrifugal cyclone slag removing device, which comprises an aluminum-zinc liquid pipe, a high-speed aluminum-zinc pump, a centrifugal cyclone, an overflow pipe, a slag discharging pipe and an aluminum-zinc slag collector, wherein all the components are made of stainless steel and ceramic which can resist aluminum-zinc corrosion. The high-speed aluminum-zinc pump injects aluminum-zinc liquid comprising slag into the centrifugal cyclone by the aluminum-zinc liquid pipe; the head cover of the centrifugal cyclone is provided with an overflow port which is connected with the overflow pipe to discharge the aluminum-zinc liquid which is subjected to slag removal; and the base of the centrifugal cyclone is provided with an outlet which is connected with the aluminum-zinc slag collector by the slag discharging pipe. The device can remove slag for aluminum-zinc liquid in an on-line way, solves the slag removal difficulty of the continuous aluminum-zinc plating production process, reduces the production cost of continuous aluminum-zinc plating, and improves the product quality of the continuous aluminum-zinc- plated plate.

Description

technical field [0001] The invention relates to the technical field of hot-dip galvanizing, in particular to a continuous hot-dip galvanizing centrifugal swirling slag removal device. technical background [0002] Hot-dip aluminum-zinc alloy coating is widely used because it has both the durable protection characteristics of aluminum and the cathodic protection characteristics of zinc, and the performance of the coating is superior to that of a single metal coating. Due to the excellent corrosion resistance, processing and forming properties and unique spangle appearance of galvalume coated steel sheets (such as Galvalume coated steel sheets), the products are widely used in the fields of construction industry, automobile industry, household appliances and agriculture. The trend of replacing single metal-coated steel sheets with aluminum-zinc coated sheets. [0003] There is a serious problem of aluminum-zinc slag in the continuous hot-dip galvanizing production line. Due t...

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Problems solved by technology

[0004] The main problems of aluminum-zinc products are defects such as zinc particles, zinc scars, indentations, uneven spangles, and reduced formability of the coating. Among them, zinc scars and indentations are mainly caused by zinc slag, especially suspended slag.

The adsorption of aluminum-zinc slag on the sinking roller and stabilizing roller will cause defects such as slag marks on the coating, and the aluminum-zinc slag will also cause adverse effects on the formability of the coating.

The formation of a large amount of aluminum-zinc slag will also cause the consumption of aluminum-zinc liquid, resulting in waste of resources and increasing production costs

In addition, the aluminum-zinc slag accumulated at the bottom of the aluminum-zinc liquid is very difficult to remove, and it must be stopped for salvage from time to time, which seriously affects the production efficiency of the unit

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