Types of mines

3. Lack of professional and technical personnel

After years of development, on the basis of many small and medium-sized enterprises, China has formed a large stone enterprise group, these large enterprises pay more and more attention to the development of stone resources, and the investment in resource prospecting and mine construction is also increasing.

There is generally a mineral development department in the enterprise, but there is a lack of professional personnel engaged in this area, and there is a lack of experienced and capable personnel. Many enterprises engaged in mine management and technology personnel are not geological and mining professional background, lack of basic knowledge of these professional, it is difficult to have outstanding achievements in mining technology.

Often see or accept the commission of some stone companies to recruit engineers or miners with practical experience, technicians, but meet the conditions are very few, few candidates. Fresh graduates have to go through several years of practice to take up the responsibility, and the new graduates engaged in the hard work of the mine, its own in the mind and will also need to hone, willing to bear hardships and dedication to be cultivated, wages should also be reasonable, otherwise it is difficult to retain talent.

Enterprises can not recruit talents, the lack of professional and technical force, in the development of resources and mining is equal to the lack of strong technical support.

On the other hand, we have a state-owned professional geological team and mine design units, such a professional team is the backbone of the development of China's stone mining industry. However, over the years, it seems that the role of these professional departments in the stone industry is getting smaller and smaller, the stone exploration projects of the geological team of building materials are few and far between, and the design projects of stone mines are even less. One reason is that the mining enterprises do not pay attention to the basic work in this area, another reason is that these professional teams have less contact with our stone enterprises, and the publicity in the industry is not enough, and the enterprises do not understand our professional departments, or even do not know. It also shows that these professional departments should increase market development efforts, improve the awareness of serving the stone industry, actively contact the majority of stone enterprises, understand the needs of enterprises, and do a good job for enterprises.

4. Conservative ideas interfere with mine development

Since the stone mining industry, the mining technology used in stone mining in China has been explored by the domestic itself, and some are also invented by the Chinese. Such as burning granite for digging quasi-ditch, using black powder for single-side splitting blasting, using hammer and piano chiselling to separate the bulk of marble mother rock, etc., are the crystallization of the wisdom of our working people, in a specific historical period, these mining methods still played a considerable role, laying the foundation for the mining of stone.

In the 1980s, China implemented the policy of reform and opening up, the stone industry has been unprecedented development, Italy, Germany, the Netherlands and other countries of advanced mining and processing technology has been gradually introduced, has imported mining and processing of complete sets of equipment has nearly 300, there are more than 10 domestic enterprises to produce stone mining special equipment, It has played a due role in promoting the development of the national stone industry.

Diamond beaded saw was introduced in the 1980s, but because most of the domestic mines do not have the conditions for use, coupled with the supporting consumption of materials are expensive, in fact, these imported beaded saws and supporting other mining equipment are idle, did not play the role of equipment.

Mines adopt more advanced mining technology, it is necessary to spend money to purchase the necessary mining equipment, mine investment compared with the original mining method to much more, mining enterprises in the early stage of mine construction ideological preparation is insufficient, and the understanding of new mining technology is not comprehensive, reluctant to take risks, conservative ideas prevail, the promotion of new technology faced with difficulties and resistance is not difficult to imagine. The profit-oriented concept of "heavy processing, light mining" seriously interfered with the development of mining industry at that time.

5. Enterprises are misled and have no clear concept of practical mining technology

The key link of stone mining is the separation of the mother rock of the large rock mass, whether by controlled blasting method, or by mechanical sawing, flame cutting, mechanical splitting and other means, the purpose is to separate the complete specifications of the block from the bedrock. This is also a mine core technology, once this step of technical problems have been broken through, other follow-up work is relatively simple and much easier.