Crushing and transportation method and crushing and transportation system of deep mining ore

Abstract

The invention relates to a crushing and transporting method of ores in deep mining of a mine and a crushing and transporting system. The crushing and transporting system comprises a coarse crushing machine, a medium crushing machine and a fine crushing machine which are arranged under the ground from bottom to top, a coarse ore storage well and a medium ore storage shaft, two groups of feeding machines, three upstroke rubber belt conveyors and a high-pressure roller mill machine, wherein the high-pressure roller mill machine is connected with the three sections of upstroke rubber belt conveyors by an ore feeding shaft and a feeder for a high-pressure roller mill. The method comprises the steps that crude ores are crushed by the coarse crushing machine, the medium crushing machine and the fine crushing machine, are fed into the high-pressure roller milling machine by the two ore storage shafts, two groups of feeding machines, three upstroke rubber belt conveyors and the ore feeding shaft for the high-pressure roller mill to be crushed into crude concentrate with the fineness being 0-10mm and then are outputted by the rubber belt conveyor. The crushing and transporting method and the crushing and transporting system has the advantages that the underground resources are utilized, so that the land resources on the ground are saved, the energy-saving and consumption-reducing effects are achieved, and the investment is saved.

Description

technical field [0001] The invention relates to the technical field of mining and dressing, in particular to an underground ore crushing and transportation method and a crushing and transportation system. Background technique [0002] At present, the underground ore is usually exported to the filter room of the dressing plant by using a coarse crusher with a skip hoist to lift it to the ground and then output it to the filtering room of the dressing plant. The process is that after being crushed by the coarse crusher, the large ore in the underground enters the ore storage chute, and is sent to the metering bucket by a group of feeders and reloading belt conveyors under the ore storage chute, and is lifted to the ground mine by a skip hoist. , through a group of feeders under the ground ore bin, a reloading belt conveyor and a group of belt conveyors, it is fed into the ore storage bin before the intermediate crushing, and the ore discharged from the ore storage bin before t...

AI Technical Summary

Problems solved by technology

The coarse crusher is equipped with a skip hoist to lift it to the ground and then output to the filter room of the dressing plant. The main disadvantages are as follows: With the continuous increase of mining depth, the effective load of deep well hoisting will decrease significantly with the increase of depth, and the lifting cost A substantial increase

Therefore, one-stage lifting generally does not exceed 2000m. When the depth of the well reaches 2000-4000m, two-stage lifting is often required; the process is complicated and there are many links; the ball mill grinds ore, and the operating cost of the concentrator is high.

Images