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掘进工作面可调控双锥形一体化泡沫降尘装置的实验研究

发布时间:2018-03-12 19:03

  本文选题:可调控 切入点:双锥形 出处:《中国安全生产科学技术》2017年09期  论文类型:期刊论文


【摘要】:为解决掘进时粉尘浓度高、能见度低的问题,达到改善作业环境并减少对工作人员危害的目的。运用流体力学的涡流和射流原理,研发出可调控双锥形一体化泡沫降尘装置,通过多次模拟实验确定其最佳的技术原理、设计结构及操作方法。凭借系统调节部件设计气-液二相控制面板,实现对气液比的调节与监控。实验表明:通过对阀门的调节,泡沫降尘过程中可以实现气液比的调控,能够产生连续、均匀的泡沫,发泡剂最佳浓度为2.5%,泡沫回收装置能有效的回收积液。全尘、呼尘降尘效率分别达到93.4%和90.2%,起到全面立体控尘的效果。该装置能够对矿井综掘面高效降尘,成泡量与粒径准确控制,实现不同矿井不同粒度尘源的控制。
[Abstract]:In order to solve the problem of high dust concentration and low visibility during tunneling, to improve the working environment and reduce the harm to the workers, the adjustable biconical integrated foam dust control device was developed by using the eddy current and jet principle of hydrodynamics. The optimum technical principle, design structure and operation method are determined through several simulation experiments. The gas-liquid two-phase control panel is designed with the help of the adjusting parts of the system to realize the regulation and monitoring of the gas-liquid ratio. The experiment shows that the valve can be adjusted by adjusting the valve. During the dedusting process of foam, the ratio of gas to liquid can be controlled, and a continuous and uniform foam can be produced. The best concentration of foaming agent is 2.5. The foam recovery device can effectively recover the accumulated liquid. The dust reduction efficiency of exhaling dust reaches 93.4% and 90.2, respectively, which has the effect of overall stereoscopic dust control. This device can control the dust of fully mechanized driving face with high efficiency, accurate control of foaming amount and particle size, and realize the control of dust sources of different particle sizes in different mines.
【作者单位】: 辽宁工程技术大学安全科学与工程学院;矿山热动力灾害与防治教育部重点实验室(辽宁工程技术大学);
【基金】:国家自然科学基金(51774168);国家自然科学基金(51204089) 辽宁省教育厅科研项目(LJYL002)
【分类号】:TD714.4

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