Stone exploiting method

Abstract

The invention relates to a stone exploiting method. The stone exploiting method comprises the following steps: drilling a hole in a stone by using a drill bit, and putting an expansion head element into the drilled hole; connecting a working medium source with the expansion head element; applying pressure to a working medium by using a manual hydraulic pump; arranging an energy distributor between the manual hydraulic pump and a hydraulic pipe; expanding the capacity of an expansion rubber hose in the expansion head element by using the pressurized working medium and transmitting oriented acting force; applying the oriented acting force to the hole wall of the hole so as to crack the stone in the oriented direction to form a cracked surface; when cracks are formed in the stone, reducing the pressure of the working medium to zero; and recovering the expansion head element to be in an initial state. In the method, large-size machinery is not required and the stone can be exploited by using the manual hydraulic pump, so that operation steps are greatly simplified, the production efficiency is improved, the labor intensity is reduced and the use time is short. The stone exploiting method meets the environment-friendly requirements, has no noises and no dust, is safe, easy to operate and easy to maintain, and has low energy consumption so that energy sources are saved.

Description

technical field [0001] The invention belongs to the technical field of open-pit quarrying, and in particular relates to a method for mining stone. Background technique [0002] The traditional methods of mining marble and granite and seismic excavation of coal mine roadways are mainly carried out in the following ways: [0003] (1) Mining with a pickaxe. Use a down-the-hole drill or a rock drill to drill the required holes in the stone, install a steel wedge at the drilled hole, and then hit the stone with a hammer to crack. The workers of this mining method have high labor intensity and low production efficiency. Sometimes they need to use gunpowder blasting to operate at the same time, and the force only acts on the orifice, so the yield is low. [0004] (2) Mining with a hydraulic splitter. Its rock-breaking principle is the same as that of an artificial wedge. First, insert the wedge head part of the hydraulic splitter into the hole of the rock, and then start the oi...

AI Technical Summary

Problems solved by technology

The disadvantages of using this method for rock breaking are: high cost of use, long action time, slow loading of the breaking agent, and occasional accidents where the breaking agent sprays out and hurts people, and the storage conditions for the breaking agent are relatively strict.

[0007] The disadvantages of the above-mentioned existing mining methods are: expensive equipment, high energy consumption, serious pollution such as noise and dust, and the equipment is not easy to move, and cannot be used in a mountainous and rocky natural environment or in a field environment

If manual drilling with a pneumatic pick is used, although the cost is low and the operation is simple, the diameter of the drilled hole is small, it takes a long time, and the verticality and concentricity of the drilled holes are poor in accuracy; if a mechanized down-the-hole drill (Φ80- Φ100) and rock drills (Φ30-Φ60), although the drilling speed is fast and the precision is high, the one-time purchase cost of the equipment is more than ten times that of the jackhammer, which is inconvenient to move, requires more auxiliary equipment, and the drilling size range is narrow

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