Rock breaking method

Abstract

The invention discloses a rock breaking method. The rock breaking method comprises the following steps that A, a rock breaking machine arranged in a rock breaking operation zone is driven or moved to a zone to be subjected to rock breaking, the rock breaking operation zone is made to be above the zone to be subjected, and the rock breaking operation zone of the rock breaking machine is a hollow zone which penetrates through a car body of the rock breaking machine and is perpendicular to the ground; B, a rock arm is operated, and a rock breaking part on the rock arm is controlled to act downwards in the rock breaking operation zone; and C, the rock breaking part of the rock arm breaks rocks in the rock breaking operation zone. The technical effects that the weight of the rock breaking machine can be fully utilized to improve the rock breaking effect of the rock arm in the rock breaking operation zone, and the rock arm is effectively made to conduct rock breaking operation around the gravity center and the nearest zone of the rock breaking machine; and meanwhile, on the premise that the rock breaking effect is ensured, arms with high weight do not need to be lifted, the energy loss of idle work can be reduced to minimum, and thus the rock breaking energy consumption is reduced.

Description

technical field [0001] The invention relates to the field of rock breaking, in particular to a rock breaking method. Background technique [0002] Rock crushing is a process of separating part of the rock mass from the parent body and breaking it into rock blocks during mining operations. There are mainly four types of explosive crushing, mechanical crushing, water jet crushing and thermal crushing in the prior art. in, [0003] Explosive Fragmentation: The use of dynamite or other explosives to instantly release huge energy to break rocks is currently the most widely used and most effective. [0004] Mechanical crushing: divided into four methods: cutting, punching, rolling and grinding. When breaking rock, the rock breaking tool enters the rock, and a dense nucleus appears in the rock body in front of the tool moving. Larger pieces of disintegrated bodies are produced around the dense nucleus. The main reason why mechanical crushing is not widely used in hard rock is s...

AI Technical Summary

Problems solved by technology

However, in the actual rock breaking process, due to its own characteristics, this type of rock breaking machine has some serious shortcomings, mainly because of poor energy efficiency. Although these equipment can meet the requirements of high, medium and low hardness rock formations, they are not targeted. Strong, resulting in low construction efficiency

Moreover, in the process of rock breaking, the weight of the machine itself cannot be effectively used to increase the cutting force of the rock arm, resulting in a slow rock breaking speed.

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