Continuous jet descaling system for cold-state metal part surface

Abstract

A continuous jet descaling system for cold-state metal part surface comprises a water tank, prepressing sand tanks, sand water mixers, an injection system, a collecting pool, a settling pool, a filter sifter and a sand mixing pool. The prepressing sand tanks are connected with the water tank through a pipeline and a pressurizing device, the sand water mixers are arranged at outlets of the prepressing sand tanks, the injection system is used for directly removing scale, inlets are connected with the sand water mixers through the pipeline, the collecting pool is used for collecting various mixtures after descale and is arranged below the injection system, the settling pool is connected with the bottom of the collecting pool through the pipeline, the filter sifter is connected with the bottom of the settling pool through the pipeline, a discharging outlet and a control valve are arranged at the bottom of the filter sifter, the sand mixing pool is connected with the upper part of the filter sifter through the pipeline, the sand mixing pool is connected with a sand box for storing sand through the pipeline and is connected onto the prepressing sand tanks through a mortar pipeline and a mortar pump. The continuous jet descaling system for the cold-state metal part surface can realize high-efficient and continuous surface descaling, and fine recycling of various media in the whole system is realized by making full use of washing technique of front mixed jet, filter recycling technique of the mixtures, vibrating screening technique and the like.

Description

technical field [0001] The invention relates to the technical field of metal surface descaling, in particular to a cold-state metal surface jet continuous descaling system, which is mainly used to realize fully continuous descaling treatment on the surface of cold-state metal workpieces. The recovery, filtration and recycling of the waste after scaling can realize the complete continuity of the descaling process, which can completely replace the existing chemical wet pickling line, and directly improve the flexibility of the surface descaling process of the metal processing production line. production capacity, and directly improve the cleanliness and environmental protection indicators of such metal surface descaling production lines. Background technique [0002] In the process of hot rolling or heat treatment of steel, alloy and other metal materials, a dense covering composed of metal oxides will be formed on the surface, commonly known as "scale skin", the existence of ...

AI Technical Summary

Problems solved by technology

Because this method still needs to use a large amount of acid liquid, and at the same time has very strict requirements on acid spray nozzles, there is a pollution problem in the cold rolling production line.

[0005] U.S. Patent US5388602 high-pressure water jet cleaning device is mainly for descaling of various continuous casting slabs, which cannot meet the requirements of cold rolling; As-cast billets or forging billets during forging

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