Quarry stone into the era of diamond wire saw

   It Chinese stone mining machinery industry to Chan, 2005 can be said to be a watershed. Before 2005, China stone equipment manufacturers will focus placed on the R & D, production of stone processing equipment, stone mining machinery and equipment is some low-end drilling, hoisting products, stone mines machinery, a gap in the market. Although Italian stone mining equipment manufacturers in China for many years of market development, promote the use of Italian mines mining equipment, but by restricting the price is on the high side, in the application of stone mines in China are relatively less.

Entered in 2005, silence for many years China stone mining machinery industry has a great breakthrough, the most prominent performance is the localization of diamond wire saw. Almost at the same time, the Shanghai Morgan, high stone mining machinery, Henan almt Whirwind, Quanzhou, massive hard tools, Fuzhou skystone diamond etc. several enterprises launched their own diamond wire saw machine, plus the original R & D earlier Guangdong Bureau of Geology and mineral resources prospecting machinery factory and other units, diamond wire saw machine market competition has become very fierce. The emergence of this phenomenon indicates that the era has come to represent the popularity of Chinese stone mining diamond wire saw machine has come, this will give the level of China's stone mining to improve the level of revolutionary progress. Henan almt Whirwind diamond Co., Ltd. with "quarry stone into the diamond wire saw era of advertising language, very precisely instead local representation of the Chinese stone mining of a new phase in the beginning.

The application of diamond wire saw in the mining of stone has been abroad for more than thirty years. In recent years, it has been widely used in China. Its working principle is in the pre fight good horizontal or vertical direction of perforation in the penetration of the diamond string bead wire and then placed on a rope saw the flywheel, and motor drives the flywheel drives a diamond beaded rope rotation cycle of stone cutting, also to the kerf with plenty of water to cool diamond and exclude sawing rock powder, in sawing and rope saw walking backwards, make a beaded rope to keep certain tension and feed speed until completion of sawing.

Early rope saw only used for cutting soft stone, in the world of rope saw mining marble mining technology has been very mature. For the hard granite stone, after wire saw, beaded rope manufacturers and mining enterprises long-term unremitting efforts, with a rope saw mining granite technology more and more mature, the wire saw can be widely used in granite, sandstone and other various hardness of stone mining, product quality is getting higher and higher, costs are lower, in the world has become a trend.

With the traditional "blasting + flame cutting mining method, mining of granite has the following advantages: one is the rope saw adaptability, wire saw is suitable for all types of mines, and the flame cutting is only applicable to the high content of quartz, less crack of granite mines; two is a strong function, high efficiency, first mining depth 10~20m can be achieved, even deeper, flame cutting generally only within 10m; secondly, the cutting speed, can reach 3~4m2/h, is 2~3 times of flame cutting; third, rope saw cutting can dry the vertical and horizontal, inclined and other direction, but also can cut the blind, and only the vertical flame cutting cutting; four is high yield, low cost, the first section of the wire saw is very smooth and will not cause any internal blocks; the second seam saw little, only about 11mm, not a waste of resources; and Flame cutting section is rough, and cause internal injuries of the blocks, and the kerf, generally for 100 ~ 300mm, resulting in great waste of resources, and production cost is high; the fifth is the safety and environmental protection, rope saw mining without noise and dust, does not affect the nearby residents and other work for industry and automation degree high, separated operation, low labor intensity of workers, high safety; and flame cutting noise and dust are very large, serious impact on nearby residents of other workers, and workers labor intensity big, security is relatively low. To sum up, in the increasingly scarce resources, soaring oil prices today, with rope sawing granite has significant economic benefits and social benefits.

In recent years, with the diamond wire saw machine supporting the diamond beaded rope, quality and technology has improved steadily, especially domestic string bead wire quality to upgrade quickly, has reached the advanced level of imports of similar products. The main improvement of the following aspects: first, improve the quality of steel wire rope, due to widespread use of the imported high quality steel wire rope, wire rope break easily solves problems, directly improving the durability of bead wire; two is to maintain the quality of the material bead spacing, now commonly used high strength plastic and rubber. The bead and wire rope to firmly combine, to solve the problem of loose beads, beads making beaded rope channeling, the quality is greatly improved; the three is to improve the quality of diamond, whether or plating sintered beads, either in Dali or stone cutting granite, its stability and wear resistance are greatly improved, greatly improving the beaded rope life. Fuzhou skystone diamond super hard tools Co., Ltd as an example, company product 13 years of product development experience, and Fujian a number of mines and processing enterprises establish product test off the were developed marble mines rope (spring fixed), granite mines rope rubber is fixed and combined rope saw rope (injection fixed for granite wool board cutting) and other types of products, and according to the special needs of customers to develop different cutting scheme.

2005 stone mining equipment is another important phenomenon is high stone mining machinery factory as a professional stone mining equipment manufacturers in the industry debut. Before March 2005 Beijing International Stone Exhibition, high stone mining machinery factory launched a series of stone mining machinery, and diamond wire saw machine supporting the cylinder of DTH drilling, vertical cylinder drill; orebody, separation equipment hydraulic top stone, flame cutting machine, cutting gun head, hydraulic roof. And general soil made of mine equipment is different from the appearance to the inherent quality of similar products abroad advanced level. The hydraulic top engine also won the national patent (patent number: ZL 200430046988.2, ZL 200430046989.7). The device uses miniature pneumatic diesel engine as power source, and is suitable for non power mining operations, in a short period of time tip over 300 tons of rock mass is a kind of special equipment for large mining stone rock overturned, the technology is safe and efficient for. High stone mining machinery products once launched, immediately attracted the attention of the industry, in 2005 the operating results of a good, fully illustrated the high stone group decision-making in the right and forward-looking.

Compared to the arm of the chain saw, saw blade stonecutter than traditional mining methods and equipment, also with the mining speed, high efficiency, regular blocks without traumatic, low worker labor intensity, resource conservation, reduce the noise and dust pollution, safety, environmental protection and other advantages; in cutting stonework of Dali, chain arm saw also has the advantages of no need of cooling water, in the cutting of granite, the saw blade stonecutter has certain advantages of speed and cost. With the rope saw compared with both without pre drilling of perforation, shorten the preparation time, save the advantages of cutting rope rope troubles etc.. The limitation is that the diameter of the saw blade and the length of the chain arm are limited, which restrict the cutting depth of the saw blade. And due to the wire saw relatively small weight, strong adaptability of terrain to the mines, at the beginning of the mines mining stage, the advantage of wire saw is two "mining pioneer" is not to be compared with the. Therefore, in the general case, both of which can be matched with rope saw for use, namely blade stonecutter in mining platform longitudinal vertical saw a long saw, then use rope saw cutting level bottom surface and the lateral surface of the vertical, or with chain arm saw in mining platform longitudinal horizontal bottom surface saw a long saw, then use rope saw cutting two perpendicular planes, the charge will play to their respective advantages, maximize production efficiency and reduce production cost.

In Central Committee to the proposed the establishment of a conservation minded society, under the guidance of the concept of the development of circular economy, under the stone mining resources are becoming scarce, accelerate the transformation of small stone mines in China, soil, scattered, chaotic situation increasingly urgent, and the localization of advanced stone mining equipment in the price for the transformation of China's mines provides the possibility, for old mines still use the blasting mining, is to consider a new mining ways and timing, for new mines is more necessary for research and demonstration of various schemes, the quarry mining in diamond cutting wire saw era has been the trend of the times.