It is a kind of stope method. It also divides the ore block into two parts: mining room and pillar, mining first and then mining. When the ore body inclination angle is between 30° and 50°, the ore cannot be transported by means of gravity, and there are many difficulties in using the room and column method. (For ore bodies with inclined ore bodies 30° to 50°, it is difficult to solve mining operations). In this case, it can be considered to solve the problem by using the explosive force transfer method. The explosive force mining method is to throw the ore into the ore-extracting area by means of the explosive force at the time of falling mine. We call such a method for explosive mining. This mining method is to dig a rock drilling patio at the bottom of the ore body, preferably at half the position of the ore and the rock of the chassis. The advantage of this method of arranging the patio is that there is no downhole, the amount of waste rock is small, and the bottom plate is blasted. Relatively flat, less deposits in the chassis. Fan-shaped blastholes (medium or deep holes) in the rock drilling patio. A 01-38 or EA-100 rig can be used . The work of mining is to push the road upwards. Generally, it is concentrated rock drilling and blasting in several stages. 2 The surrounding rock must be allowed to collapse. Special vehicles for railway transportation in mines.In order to adapt to the narrow conditions of underground roadway, the external dimension is compact.There are trucks, rickshaws, carts and so on Mine Car,Rail Mine Car,Mining Ore Car,Mining Transportation Car Jining Dongda Electromechanical Co.,Ltd. , https://www.coal-mine-equipment.com
A mining vehicle is a narrow track railway transport vehicle for transporting loose materials such as coal, ore and waste rock in a mine.Harvesters according to the structure and unload in a different way is divided into: stationary harvesters (material car, flat car), tilting harvesters, unilateral bend side dump car, bottom (side) dump car and shuttle car a total of 5 categories.
A vehicle that carries coal, gangue, equipment, equipment and personnel, drawn by a locomotive or winch.The mining vehicle is mainly used for the underground roadway, wellbore and ground rail transportation in the mine. It is the largest and most widely used transportation equipment in the coal mine
What is the explosive force mining method?
The essence of the explosive force transfer method: