Stone qurrying entered the era of diamond saw

Expert introduction:

In terms of China's stone mining machinery industry, 2005 is a watershed year. Before 2005, China's stone equipment manufacturers will mainly focus on the research and development, production of stone processing equipment, stone mining machinery is mostly some low-end drilling, lifting and other products, so stone mining machinery has a blank market. Although Italian stone mining equipment manufacturers have been carrying out market development for many years in China and popularizing the use of Italian mining equipment, the application in Chinese stone mining is relatively rare due to the high price.

Entering 2005, the Chinese stone mining machinery industry which has been silent for many years has made a great breakthrough, the most outstanding performance is the localization of diamond rope saw. Is almost at the same time, high stone mining machinery, henan joint cyclone, superhard tools, of the city of quanzhou, fuzhou day Shi Yuan etc. On the basis of generic technology in Italy for several enterprises launched its own diamond wire saw machine, combined with the original development earlier mine bureau of guangdong province prospecting machinery factory units, such as the diamond wire saw machine in the market competition is very fierce. The appearance of this phenomenon indicates that the era of the popularization of Diamond rope saws in Chinese stone mines has come, which will bring revolutionary progress to the improvement of Chinese stone mining level.

The exploitation of granite ore by rope saw is gradually popularized and applied

Diamond rope saw mining stone has been used in foreign countries for more than 30 years, early rope saw is only used to cut soft stone, in the world of the rope saw mining marble mining technology has been very mature. For granite and other hard stone, after the rope saw, beaded wire manufacturers and mining enterprises long-term unremitting efforts, with a rope sawing granite mining technology is more and more mature, the wire saw can be widely used in granite, sandstone, etc on the hardness of stone mining, product quality is higher and higher, more and more low cost, has become a worldwide trend.

Compared with the traditional mining method of "blasting + flame cutting", using the rope saw to mine granite has the following advantages:

First, it has wide adaptability. The rope saw is applicable to all types of mines, while flame cutting is only applicable to granite mines with high quartz content and low cracks.

Second, it has strong functions and high efficiency. First, the mining depth is deep and can reach 10~20m or even deeper. Flame cutting is usually within 10m. Secondly, the cutting speed is fast, generally reaching 3~4m2/h, which is 2~3 times of flame cutting.

Third, the saw can cut vertically, horizontally and diagonally with the ground, and it can also be cut blind.

Fourthly, the material rate is high and the comprehensive cost is low. Firstly, the cutting surface of the rope saw is very smooth and will not cause any internal injury to the waste materials. Secondly, the saw seam is small, only about 11mm, which will not cause waste of resources. However, the cutting surface of flame cutting is rough and rough, and causes certain internal injury to the waste material. Besides, the large saws, usually ranging from 100 to 300mm, cause great waste of resources and high mining cost.

Fifth, it is safe and environment-friendly. The rope saw mining is noiseless and dust-free, and it does not affect nearby residents and other work operations. Besides, it is highly automated and operated separately. However, the noise and dust of flame cutting are very large, which seriously affects the work of other workers in the neighborhood. Besides, the labor intensity of workers is high and the safety is relatively low. To sum up, in today's increasingly scarce resources and soaring oil price, there are remarkable economic and social benefits in mining granite with rope saws.

The quality of diamond string further matures

In recent years, the quality and technology of the diamond beaded rope matched with the diamond rope saw machine has been steadily improved, especially the quality of the homemade beaded rope has been rapidly improved, which has reached or is close to the advanced level of the imported similar products. The main improvements are as follows:

First, the quality of steel wire rope is improved. Because imported high quality steel wire rope is widely used, the problem of easy breaking of steel wire rope is solved, and the durability of the string of beads is directly improved.

Second, the distance between beads maintains the improvement of material quality. Now high-strength plastics and rubber are widely used, which makes the combination of beads and wire rope more solid, solves the problems of loose beads and channeling beads, and greatly improves the quality of string.

Thirdly, the quality of diamond beads has been improved. Whether the beads are electroplated or sintered, whether they are cutting marble or granite, their stability and wear resistance have been greatly improved, which greatly improves the life of the string.

Other leading mining equipment

In addition to the diamond rope saw, there are also two so-called "mining pioneer" equipment worthy of our attention. One is the "mining pioneer", which is produced by fujian putian hualong stone machinery co., LTD., which directly applies the high speed cutting technology of diamond cutter to the mining of marble and granite. The equipment adopts the gantry double column frame, lays the horizontal double track guide rail on the mining platform surface, walks under the triangular structure steel wire traction, the main engine adopts the adjustable speed nine drive, the hydraulic control extendable shaft power saw cutting, realizes the 360-degree rotatable rotary table to operate the continuous cutting. At present, most of granite mines in China have been widely used.

The other is the "mining pioneer" of Shanghai feizhou machinery co., LTD., which is an advanced equipment for mining in China using foreign technology. Its working principle is to diamond carbide tooth or tooth is installed on the chain, driven by hydraulic power system, the chain in the circulation chain arm rotation, sawtooth directly cutting marble rock mass, and chain arm can rotate 180 degrees, the machine can be in a horizontal guide rail, thus the horizontal, vertical and inclined plane cutting operation, the machine with water or dry cutting, cutting and combined guide rail to unlimited extension of the cutting distance, suitable for cutting left except granite type of stone.

Multiple production equipment is used together to increase production and efficiency

Compared with the traditional mining methods and equipment, the chain arm saw and saw blade cutting stone machine also has the advantages of fast mining speed, high efficiency, regular waste material without internal injury, low labor level of workers, resource saving, noise and dust pollution reduction, safety and environmental protection, etc. In the aspect of cutting marble, chainsaw also has the advantage of not needing cooling water, in the aspect of cutting granite, saw blade cutting stone machine tool has certain speed and cost advantage. Compared with the rope saw, they have the advantages of no need of pre-drilling to perforate, shortening the preparation time of cutting, and saving the trouble of wearing and connecting the rope. The limitation is that the diameter of saw blade and the length of chain arm are limited, which restrict their cutting depth. Due to the small self-weight of the rope saw, it has a strong adaptability to the mine terrain. In the initial stage of mining, the advantages of the rope saw cannot be compared with those of two "mining pioneers". Therefore, in general, both can be used with wire saw, which saw blade stone cutting machine on the drilling platform longitudinal vertical saw a long saw, then use wire saw cutting level bottom and transverse vertical plane, longitudinal arm or use a chain saw in platform base on long saw a saw, then use wire saw cutting two vertical plane, will play their respective advantages, maximize production efficiency, reduce production costs.

In the central to the country put forward to build a conservation-minded society, under the guidance of the development of circular economy, in the case of precious stone mining resources, accelerating change China mines, small, earth, stone, disorderly situation is becoming more and more urgent, and the advanced stone mining equipment localization is the price for the reconstruction of mine in China, for the old mine blasting method is still used for mining, is a way to consider new mining and timing, a variety of solutions for new mines more necessary research and argumentation, stone mining waste material into the era of diamond wire saw has the trend of The Times.