Method and device for controlling stope debris flow in caving mining method

Abstract

The invention discloses a control method and device for stope mud-rock flow in caving mining method. At the position of the ore outlet of the caving stope, before the stope is out of the mine, the impactor is used to drive the water filter steel pipe into the caving ore heap that is endangered by debris flow to be out of the mine, and the front end of the water filter steel pipe is evenly distributed with filter holes. The tail end of the water filter steel pipe is connected with the suction end of the mud pump through a rigid flange, the mud pump is started, and the vibration and negative pressure applied to the water filter pipe by the mud pump are used to eliminate the blockage of the debris flow slurry in the mine heap to the water filter pipe , discharge the mud and water in the ore heap as soon as possible, and then continue to use the impactor to drive the water filter steel pipe into the deeper position of the ore heap with debris flow hazards, and use the mud pump to discharge the muddy water, and so on, until the amount of muddy water in the stope ore heap It is greatly reduced, and the hazard of debris flow in the stope is eliminated. The invention has the advantages of simple operation, low probability of mud-rock blockage, fast drainage and mud-discharging speed, good control effect of stope mud-rock flow, recyclable water filter steel pipe, and the like.

Description

technical field [0001] The invention relates to a method for controlling mud-rock flow in a stope, in particular to a method for controlling mud-rock flow in a caving mining method. The invention also relates to a device for realizing the control method of the stope debris flow in the caving mining method. Background technique [0002] Caving mining method is a mining method that controls and manages stope pressure through caving surrounding rocks. Due to the advantages of simple stope process structure, high degree of mechanization, large production capacity, safe operation, and low mining cost, it is still widely used at home and abroad. It has been widely used in metal and non-metal mines. [0003] Caving method mining is characterized by relying on medium and deep holes to drop ore. The caving ore is discharged through the bottom structure or the roadway end scraper. The purpose of dealing with gobs and controlling ground pressure activities. The caving method has goo...

AI Technical Summary

Problems solved by technology

[0004] A large number of literature searches found that effective debris flow control methods in stopes have not yet been found, and more mining methods with low efficiency and high cost are used, or methods that treat symptoms but not the root cause, such as setting intercepting ditches on the surface to prevent surface water from reaching the stope , or do a good job of protecting the surface vegetation, or blocking the hydraulic communication channel, etc., these methods are difficult to fundamentally solve the problem of debris flow in the stope, so the problem of debris flow control in the caving method is urgent

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