Method for mining rough surface stone slab in ore pit

Abstract

The invention provides a method for mining a rough surface stone slab in an ore pit, the method comprises the following steps: 1, selecting a to-be-mined rock body; 2, chiseling a two-way hole and a groove; 3, forming a rear splitting surface; 4, forming a front splitting surface; 5, scribing a line mark and chiseling a one-way hole; 6, continuously expanding the splitting surface until a large-block stone plate is split; and 7, carving fine groove lines, and cutting the large stone plate into small stone slabs. According to the method, no large-block raw stone is needed to be mined to preparethe rough surface stone slab, the rough surface stone slab is directly mined on the site of a quartering field, efficiency is high, the plate forming rate is high, energy is saved, the environment isprotected, and the economic benefit and the environmental protection benefit are remarkable.

Description

technical field [0001] The invention relates to the field of mining, in particular to a method for directly mining stone slabs with rough surfaces in mine pits. Background technique [0002] With the development of the construction industry, the scale of stone development and application continues to expand. Nowadays, the mining methods of large blocks of stone mainly include blasting method (such as static blasting with expansion agent), cutting method (such as water jet cutting, wire saw cutting, chain saw cutting, flame), groove splitting method (that is, by convenient Easy-to-use grooving tool and static hydraulic cracking machine). The above mining methods have their own characteristics, and different mining methods are selected under different mining conditions. In general, the mechanical equipment used in these mining methods is costly, consumes water and electricity, and causes certain harm to environmental protection and ecology. [0003] On the other hand, slate...

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Problems solved by technology

[0006] The present invention aims at problems such as noise, water and electricity consumption, and environmental pollution in the process of mining and making stone slabs, and provides a method for directly mining stone slabs with rough surfaces in quarries. Cutting, hammering (chisling), etc., this method does not require machinery, does not require a lot of power consumption, and is economical, efficient and environmentally friendly. This method adopts splitting mining directly in the quarry, and does not need to be processed into a rough surface after mining, and the surface roughness of the mined slate can meet the requirements, which can solve the problem that the original block mining method and slate processing method are easy to be damaged. Environmental, large loss and other issues

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