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针对矿山充填料自流输送和传统的膏体泵送方法存在的问题,研究了一种利用机械力和浆体重力的挤压输送充填料的新方法,其思路是在井下充填管道中安装不同于传统正排量泵的挤压输送设备,使高浓度/膏体充填料浆在挤压输送设备的机械力和重力作用下,沿充填输送管道流至采空区.采用理论分析与实验的方法,研究了挤压输送方法的原理.研究结果证明,挤压输送方法原理可行,它利用了矿山充填特有的垂直管道和其内的充填料浆自重以及浆体的屈服应力,使得挤压输送设备无分配阀,因而输送设备结构简单,易磨损件少,是一种除自流输送和传统泵压输送方法之外,投资省、运行成本低的第3种水力充填输送方法.
Aiming at the problem of self-conveying mine filling material and the traditional method of pumping the paste, a new method of squeezing conveying filler material by using mechanical force and slurry gravity is studied. The idea is to install different methods The traditional positive displacement pump extrusion conveying equipment enables the high concentration / paste filling slurry to flow along the filling conveying pipe to the goaf under the mechanical force and gravity of the extrusion conveying equipment. By adopting the methods of theoretical analysis and experiment , The principle of extrusion conveying method was studied.The results show that the principle of extrusion conveying method is feasible.It makes use of the vertical pipeline which is characteristic of mine filling and the weight of filling slurry in it and the yield stress of slurry so that the extrusion conveying equipment No distribution valve, so the delivery device is simple in structure, easy to wear pieces less, in addition to a self-flow delivery and traditional pump delivery method, the provincial investment, low operating cost of the third hydraulic filling transport method.