Hydraulic roof support key machine for longwall mining method

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Introduction

Hydraulic roof support is the key equipment in the longwall mining method,which are used to support the tunnel roof of the mining face to make a space for armored face conveyors and shearers to operate underneath.The development of filling hydraulic support can prevent the ground subsidence, to fully realize the coal mining under buildings, railways and waterbodies, to prolong the service life and save resource.

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Cleaning equipment categories: push car wash machine to wash to wash his hands to machine driving type cleaning machine automatic car washing machine to clean the floor sweeping machine hand push sweeping machine driving type of the machine Automatic sweeping machine industrial vacuum cleaners, etc.
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The main still should see you clean thing, clean the rough, no strict requirements to surface with low frequency is ok, but for some mesh class cleaning high frequency, it is best to this can reduce the workpiece of ultrasonic cavitation effect. Secondly depends on the choice of cleaning medium, weak alkaline medium SUS304 steel can, weak acid or not enough, easy to form in acoustic surface acidification, steel easy ageing.
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