High-pressure water mixing strip steel rust removal device

Abstract

The invention discloses a high-pressure water mixing strip steel rust removal device. The rust removal device comprises a drive motor, a mixer, a spray curtain machine, a water pump and auxiliary accessories. The principle is as follows: clean water forms high-pressure high-speed high-flow stable jet under the effect of a high pressure water pump, uniform mixing of water and abrasives is realizedby the mixer, then the mixed slurry enters the spray curtain machine, and a slurry curtain is formed under the action of centrifugal force of a rotary impeller, so that effects of scouring, peeling and the like are achieved on the steel strip surface, and finally the mechanical scale removal aim is achieved. The device adopts a unique 'mixed slurry injection' technology, and steel strips operatingat a high speed are impacted by using the mixture of high-pressure water and abrasives so as to realize mechanical scale removal. The speed, angle and flow of the steel strips impacted by the mixed slurry can be regulated on line in real time, and accurate control of the impact strength is realized. Therefore, the controllability of smooth finish on the steel strip surface is realized, the product quality and cost can be taken into account, and the cost performance is improved.

Description

technical field [0001] The invention relates to a device, namely a high-pressure water mixed strip steel derusting device, which is mainly used in the field of cleaning rust layers on the surface of steel strips in steel mills. Background technique [0002] The iron and steel industry is an important basic industry of the national economy and an important symbol of the national economic level and even the overall national strength. However, scale formation accounts for 1%-2% material loss in most steel mill production and is usually the largest source of production loss in a plant. If the oxide scale on the surface of the billet is not removed in time, it will not only damage the roll, but also roll into the surface of the billet to form surface defects such as pits and pockmarks, which will seriously affect the surface quality of the steel, and these scales will also affect the subsequent process ( Such as cold rolling, galvanizing or coating) bring many problems. [0003...

AI Technical Summary

Problems solved by technology

However, the main disadvantages of water jet technology are high energy consumption, low level of rust removal, and high initial investment cost.

In addition, the process quality and reliability of high-pressure water jet components are relatively low, such as ultra-high pressure pumps, rotary seals, wear-resistant nozzles, high-pressure pipelines, etc.

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