A kind of lateral ore-collapse blast hole structure and lateral ore-collapse method

Abstract

The invention discloses a lateral ore caving blasthole structure and a lateral ore caving method thereof. The lateral ore caving blasthole structure comprises a plurality of lateral caving blastholesformed in an ore caving free surface, partialsections in the lateral caving blastholes are filled with a plurality of sections of explosives, all the explosives are educedto the exteriors of the blastholes through a detonating fuse to be connected with a detonating network, the explosives in the same lateral caving blastholes are separated through water columns at intervals, and the explosives indifferent lateral caving blastholes are distributed in a staggered mode in the direction of the blastholes. According to the lateral ore caving method of the ore caving blastholes, the fine-ore rate is effectively controlled, dust and harmful gas produced by blasting are reduced, the explosive energy is used effectively, explosive unit consumption and blasting vibration are lowered, fragmentationdistribution of rock is effectively improved, the stability of the blasting sidewall is effectively controlled, and a large-scale lateral blasting ore caving technical method with the advantages of low fine-ore rate, small dust pollution, high explosion energy utilization rate, low unit consumption, small blasting vibration, uniform blasting fragmentation and high blasting sidewall stability is achieved.

Description

Technical field [0001] The invention belongs to mine mining blasting technology, and specifically relates to a fine ore control method, in particular to a lateral blasthole structure for controlling fine ore in deep hole blasting and a lateral blasting method. Background technique [0002] With the development of modern industry, mining industry as a basic industry, due to the continuous deterioration of its resource conditions and mining conditions, mining is gradually changing to a high-efficiency, low-cost, large-scale technology. Deep hole mining is the most popular safe, efficient, low-cost and large-scale mining method in underground mining production. It is used in many low-grade mines and thick ore bodies. However, the blasting technology used in this mining method But it is always trapped by the two opposites of blasting the rock and preventing excessive blasting from crushing. Especially in the lateral collapse of deep hole blasting, the charge is large and relatively ...

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the present invention is: aiming at the defects of high powder ore rate, high unit consumption and large vibration existing in the existing large-scale deep hole lateral collapse, to provide a kind of fine ore that can be controlled, with low unit consumption and blasting vibration Small lateral avalanche hole structure and its lateral avalanche method

Images