综采面采煤机喷雾降尘控制系统改进优化研究

Spray dust control system's improvement and optimization for the shearer at fully mechanized longwall face

针对综采工作面采煤机在采煤过程中产生大量煤尘的问题,对采煤机原有喷雾降尘设备的喷雾原理、降尘效果进行了研究,对综采工作面的粉尘浓度与运移规律进行了分析,提出了一种基于可编程序控制器PLC的采煤机喷雾降尘控制系统,利用电参数采集模块、粉尘浓度传感器、红外定位传感器和可移动摄像头对采煤机的各项工作参数、工作位置、状态以及综采面的粉尘浓度进行了多信息、多点采集与监控,实现了综采面采煤机的远程监测和喷雾系统的自适应控制,通过采煤机截割实验台对原有系统和改进优化后的控制系统进行了降尘效果测试。研究结果表明,改进优化后的喷雾降尘控制系统能够精确控制喷雾降尘,系统响应速度快、鲁棒性好,保证了综采面采煤的煤质和安全生产,提高了系统的自动化水平。

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 programmable controller 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.