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采煤机尘源跟踪喷雾降尘技术已成为采煤工作面最主要的防尘技术手段之一,为了解决其使用过程中的可靠性不高、维护量大等问题,开发新一代尘源跟踪喷雾降尘系统。新系统主要从无线通讯、智能喷雾和提高可靠性3个方面进行研究和设计。通过开发433 MHz无线传输模块,根据顺、逆风割煤的特点设计的不同喷雾模式,挂载粉尘浓度传感器实现随采煤工作面粉尘浓度智能调节喷雾的闭环控制,优化控制箱设计提高系统的可靠性满足设计要求。通过实验室及工业试验,证明系统运行稳定、可靠,达到了设计要求,结合其它防尘措施使综放工作面的粉尘浓度降低90%以上。
Shearer dust source tracking spray dust suppression technology has become one of the most important dust-proof technical means of coal mining face, in order to solve its reliability is not high, the maintenance of large and other issues, the development of a new generation of dust source tracking spray Dust reduction system. The new system mainly from the wireless communications, intelligent spray and improve reliability of three aspects of research and design. Through the development of 433 MHz wireless transmission module, different spraying modes designed according to the features of forward and reverse wind mowing, the dust concentration sensor is mounted to realize the closed-loop control of spray with the dust concentration of the coalface, and the control box design is optimized to improve the reliability of the system Satisfy the design requirements. Through laboratory and industrial tests, the system proved to be stable and reliable, meeting the design requirements. Combined with other dust control measures, the dust concentration in fully mechanized coal caving face was reduced by 90% or more.