Method for transporting grouting material vertical delivery pipe used for mine

Abstract

The invention discloses a method for transporting a grouting material vertical delivery pipe used for a mine. The method comprises the following steps of: building a delivery bore hole with a diameter of 0.5 to 0.8 meters from the ground to a underground laneway, sinking a wear-resistant sleeve in the delivery bore hole, arranging a buffer chamber and a separation chamber at the bottom of the delivery bore hole, arranging a mixing station at the lower part of the buffer chamber and the separation chamber, and arranging a separator at the openings of the buffer chamber and the separation chamber. The method is characterized in that the buffer chamber and the separation chamber are built on a cave chamber in a way that the efficient buffer height is not less than 3 meters, the two chambers are separated by a brick wall of 50 cm thickness, the separator is a forked pipe, a baffle plate capable of being opened leftward and rightward is arranged in the pipe, and the baffle plate is controlled by a hydraulic oil cylinder to distribute different types of materials to different chambers. The method adopts the independent transport system which is free of the mutual interference with the auxiliary shaft lifting system, reduces the transport cost, and works under the action of self-gravity to save the cost.

Description

technical field [0001] The invention relates to coal mine transportation technology, in particular to the transportation technology of shotcrete material. Background technique [0002] In coal mining and other underground mining, roadway support is required to transport shotcrete from the ground, including sand, gravel, cement and other granular materials with a diameter not greater than 5cm. [0003] With the improvement of mine mining capacity, the demand for shotcrete material is increasing. The existing transportation methods for mine shotcrete material are: common winch lowering and mine car loading. This transportation method is the most commonly used method. It relies on the auxiliary shaft auxiliary lifting system of the mine to lower the materials into the underground with mine trucks, and then transport them to the working face by rail transportation. This method is limited by the auxiliary lifting capacity of the mine, and there is a phenomenon of competition wit...

AI Technical Summary

Problems solved by technology

This method is limited by the auxiliary lifting capacity of the mine, and there is a phenomenon of competition with other auxiliary transportation materials, and the safety degree is not high, there are many transportation accidents, the transportation capacity is low, the occupancy is large, and the cost is high

Far from meeting the needs of the mine, a convenient, fast, economical and safe transportation method is needed to solve the problem

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