Extra-thick solid potassic salt mine mining method achieving one-time overall width mining

Abstract

The invention discloses an extra-thick solid potassic salt mine mining method achieving one-time overall width mining, and belongs to the technical field of mining. The extra-thick solid potassic salt mine mining method achieving one-time overall width mining can solve the problems that in the prior art, mining of an extra-thick solid potassic salt mine is low in efficiency and yield. Room type mining working faces are arranged at the top and the bottom of a solid potassic salt seam correspondingly, the stoping operations of ore in stope rooms are completed by adopting a potassium mining machine, ore pillar support top plates are reserved, and the stope rooms and ore pillars of the top of the seam correspond to the stope rooms and ore pillars of the bottom of the seam in an one-to-one mode; then raise-bore machines are mounted in the stope rooms of the top of the seam, guide bits are utilized to break through to top plates of the bottom stope rooms from bottom plates of the top stope rooms, and inversion bits are mounted in the bottom stope rooms to complete the process of raise-bore machine ore breaking down; and falling ore bodies are transported to a belt through forklifts or harrowing machines in the bottom stope rooms to complete the transporting process of the ore. According to the extra-thick solid potassic salt mine mining method achieving one-time overall width mining, safe and high-efficiency mechanized mining can be achieved.

Description

technical field [0001] The invention belongs to the technical field of mining, and in particular relates to a method for mining an extra-thick solid potassium salt ore with full thickness at one time. Background technique [0002] The proven soluble potassium resources in my country are very limited, mainly brine potassium ore. Other established potassium fertilizer producing countries in the world, such as Canada, Russia, and Belarus, mainly mine potassium halite ore bodies, while emerging Southeast Asian potash countries such as Laos and Thailand mainly have carnallite, and the ore bodies are very thick. , up to more than 100 meters thick. Carnallite and potassium halite ore bodies are also quite different in mineral composition and physical and mechanical properties. Therefore, there is little international research on extra-thick carnallite ore bodies, and there is no relatively mature mining method. At present, there are mainly two methods for the mining design of ex...

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the problems of low mining efficiency and low output of extra-thick solid potash mines in the prior art, and provides a mining method for full-thick extra-thick solid potash mines at one time

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