NEWS

Jiangyin Qinan Machinery Co.,Ltd

Development of mining machinery

The mining machinery industry is one of the important basic industries that provide equipment for the mining and processing of solid raw materials, materials and fuels. It serves the important basic industrial sectors such as black and non-ferrous metallurgy, coal, building materials, chemical industry, nuclear industry, etc. Its products are also widely used in the capital construction of basic sectors such as transportation, railways, construction, hydropower, etc. China's mining machinery industry mainly includes seven categories, about 300 varieties and thousands of specifications. Since 2000, driven by the great development of domestic basic industry and infrastructure, the market for mining machinery products has been in great demand. In 2010, the sales volume of China's mining machinery industry exceeded 400 billion yuan. By now, China has surpassed North America, Japan and Western Europe and become the world's largest mining machinery market. The mining machinery industry occupies a pillar position in the national economy, and has made many contributions to the economic construction. Whether from the market development status of China's mining machinery industry or from the global industrial operation situation, China's mining machinery industry is in a historic window period. The next 5-10 years will be an important period for China's mining machinery enterprises to fully or deeply integrate into the world and develop together with the world. The development prospect of the industry is good. It is estimated that by the end of the 12th Five Year Plan period, the sales volume of China's mining machinery industry will reach 900 billion yuan and the export volume will exceed 26 billion dollars.

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Petroleum drilling and production

Land oil drilling and production machinery. It is divided into drilling machinery, oil production machinery, workover machinery and fracturing and acidizing machinery to maintain high production of oil wells. A complete set of mechanical equipment for drilling or drilling production wells for the development of oil or natural gas. Oil drilling rig, including derrick, drawworks, power machine, mud circulating system, pulley system, rotary table, wellhead device and electrical control system. The derrick is used to install the crown block, traveling block and hook, lift other heavy objects up and down the drill floor, and hang the drilling tools in the well for drilling.

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Coal mining machinery

Coal mining operation has developed from semi mechanization in the 1950s to comprehensive mechanization in the 1980s. Comprehensive mechanized coal mining is widely used in shallow cut double (single) drum combined shearer (or plough), flexible scraper conveyor, hydraulic self moving support and other equipment, so as to realize comprehensive mechanized coal crushing, coal loading, transportation, support and other links in the working face. Double drum shearer is a coal falling machine. The motor transmits power to the spiral drum for coal falling through the reducer of the cutting part, and the movement of the machine is realized by the motor passing through the driving device of the traction part. There are basically two types of traction, namely, chain traction and non chain traction. The anchor chain traction is realized by engaging the chain wheel of the traction part with the anchor chain fixed on the conveyor.

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Tunnelling machinery

The mechanical equipment for directly crushing ore and rock into roadways or wells by using the axial pressure and rotary force of the cutter to roll the rock surface. The cutter used includes disc hob, wedge gear hob, ball gear hob and milling cutter. According to the different roadways, it can be divided into raise drilling machine, shaft drilling machine and drift boring machine. ① The raise drill is specially used to drill the raise and pass. Generally, it is not necessary to enter the raise for operation. The guide hole is drilled with a cone bit first, and the reamer consisting of a disc hob is used to expand the hole upward. ② The vertical drilling rig is specially used for drilling a well at one time, which is composed of drilling tool system, rotary device, derrick, drilling tool lifting system and mud circulating system. ③ The drift digger is a comprehensive mechanized equipment that combines mechanical rock breaking with slag removal and other processes and continuously excavates. It is mainly used for engineering tunnels in coal roadways and soft mines, and for the middle drift excavation of ore rocks with medium hardness or above.

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Drilling machine

Drilling machines are divided into rock drills and drilling rigs. Drilling rigs can also be divided into open-air drilling rigs and underground drilling rigs. ① Rock drill: It is used to drill holes with a diameter of 20~100mm and a depth of less than 20m in medium hard rocks. According to its power, it can be divided into pneumatic, internal combustion, hydraulic and electric rock drills, among which pneumatic rock drills are widely used. ② Open pit drilling rig: according to different working mechanisms for crushing ore and rock, it can be divided into wire rope percussion drilling rig, down-hole drilling rig, rotary drilling rig and rotary drilling rig. The wire rope percussion drill has been gradually replaced by other drills due to its low efficiency. ③ Underground drilling machine: when drilling the underground blast hole with the hole diameter less than 150 mm, a small diameter down the hole drill of 80~150 mm can be used in addition to the rock drill.

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