shearer at fully mechanized longwall face

ZHOU Jian-ping1，WANG Hai-jian2

（1. Electrical Division，Majialiang of Zheneng Coal Industry Co.，Ltd.，Shuozhou 036000，China；

2. College of Mechanical Engineering，Liaoning Technical University，Fuxin 123000，China）

Abstract：Aiming at the comprehensive mechanized mining face shearer produces a lot of dust in the mining process，the spray principle

of the shearer's original water-spraying dust suppression and the dust effect were researched，the comprehensive mechanized mining face's dust concentration and movement regulation were analyzed，the shearer spray dust control system based on programmablecontroller PLC was raised. The electric parameter acquisition module，dust concentration sensor，infrared sensor and a movable camera positioning were used for the shearer to test the working parameters，working position，state and the fully mechanized face dust concentration of multi-information，multi-point data acquisition and monitoring，the comprehensive mechanized mining face shearer's adaptive remote monitoring and adaptive control of spray system was realized，the dust removal effect was test for the original system and the improved and optimized control system through the shearer cutting experiment platform.The results indicate that，the improved and the optimization of spray dust control system can control the spray and dust reduction accurately，the system has fast response speed and good robustness，the comprehensive mechanized mining face's coal quality and safety production is ensured，the level of automation is improved.

Key words： shearer；movement regulation；spray dust；programmable logic controller（PLC）；adaptive