Recently, the internal combustion platform car developed by Jinxin mining management Limited by Share Ltd and Zhejiang Kai Shan heavy industry group has been successfully run through the commissioning of the downhole for more than half a month in the prong project department. The development and application of the so-called "natural caving" technology block processing artifact is the first in China.
The natural avalanche process is used in the mining work by the Jinxin prande project department. Although it is an advanced mining method in the world, it will expose the prominent contradiction of high mass rate in the early stage of application, which is also the general rule of the application of natural caving mine in the world. It is the key to restrict the rapid development of the natural caving method because of the high high block rate and the high pressure of the high and middle card and the pressure of the bottom structure. In the initial stage of the block processing, the project department adopted manual drilling, manual drilling, 281 car drilling, and then detonating and crushing. Every large block of a mine outlet must be connected and moved with ventilation pipes, water pipes, cables and so on. There are many lines and long lines, and all kinds of pipeline cables move and pull. It takes time, labor intensity and low efficiency. This kind of original method does not match the large scale production of prong. Another way of the project department is to use the mobile crushing trolley to carry out impact crushing. Although it can also solve certain problems, but because of too many large blocks, especially when the big block, the breaking time is very long, also can not meet the requirements of high efficiency production. In the face of difficulties restricting the overall production, prand project department does not rely on it and actively designs scientific and feasible new processes. Yang Junhua, a project manager, has carefully designed the design of boring trolley without wind, water and electricity. The project has been fully demonstrated with the company's material management center and the equipment management center. At the same time, a number of well-known domestic car manufacturers are invited to the site for technical exchanges. Through comparison, we finally decided to cooperate with Zhejiang Kai Shan heavy industry group. The newly designed diesel locomotive takes the main function as the main function, and uses the diesel engine as the power source driven by the whole mechanism, abandoning the traditional dual power mode adopted by the international trolley, which is driven by the diesel engine, and the working mechanism is driven by the motor. Chassis design with water tank and work water pump, remove the traditional table car must be equipped with the external relay, water, electricity "tail", can freely transfer work, also get rid of the previous wind-driven drilling machine, electric rock drill of various conditions limit, the flexibility of a substantial increase. At the same time, in the design of the propelling beam, the special short beam and special drill rod are designed according to the distribution law of the big block of the outlet. The utility of the car is greatly improved. Since the equipment has been put into operation, the technical personnel of the project department and the service engineers of the factory have gone deep into the scene day and night, debugging and tracking the equipment. After a period of testing, the equipment is in good condition. The successful application of the equipment has the following advantages: first, the mass processing measure can reach 1000 pieces / days, and the processing quantity of the old method is greatly improved; the two is the production cost of the large block is greatly reduced; the three is to solve the safety risk and the processing speed of the low large block card in the outlet; four is the labor productivity obtained. The labor intensity of the workers has been greatly reduced. More importantly, it is of great significance to solve the "intestinal obstruction" for the implementation of the natural caving method because of the timely and quicker cleaning speed, which has effectively solved the ground pressure formed by the bulk accumulation, and is called the "ice breaking move" by the prande project department to create the first and the world's leading mining target in the world. It has high popularization value in high output mining production in China.
