The most popular self grinding equipment in China

2022-07-27
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China's self grinding equipment has made progress in large-scale and ore discharge mode

China's self grinding equipment has made progress in large-scale and ore discharge mode

information on China's engineering machinery

Guide: grinding is a preparatory operation in the beneficiation process, and it is the section with the largest energy consumption in the concentrator. The grinding cost is directly related to the benefits of the entire concentrator. In recent years, considerable changes have taken place in China's grinding process, mainly reflected in the attention paid to self grinding and semi self grinding processes, the wide application of rubber lining, etc. Self grinding

grinding is the preparation work in the beneficiation process, the section with the largest energy consumption in the concentrator, and the abbreviation of China Metrology Accreditation. The grinding cost is directly related to the benefits of the whole concentrator. In recent years, considerable changes have taken place in China's grinding process, mainly reflected in the attention paid to self grinding and semi self grinding processes, the wide application of rubber lining, etc. Self grinding refers to grinding the ore in the mill as the grinding medium, while semi self grinding refers to adding a small amount (%) of steel balls in the mill on the basis of self grinding to make up for the shortage of ore as the medium

new progress has been made in the large-scale self grinding equipment.

the large-scale self grinding equipment is an important way to reduce capital investment and production costs and improve labor productivity. It is also an important symbol of the development of self grinding technology. Since the application of autogenous grinding process in industry, the large-scale autogenous grinding machine has been an important research and development topic in the manufacturing of mineral processing equipment, and new progress has been made continuously

the self grinding process was just applied in industry in the 1950s, and the specification of the self grinding machine is small. In the '60s φ 9.75m autogenous mill has been used in some mines successively. Mid-1970s φ The 10.97m autogenous mill was manufactured and became the largest autogenous mill at that time. This specification of autogenous mill adopts conventional gear transmission, but due to the limitation of gear transmission power, there is no new breakthrough in the specification of autogenous mill for a long time. Until the mid-1990s, with the application of gearless transmission, it was successively manufactured φ 11.58m and φ 12.19m autogenous mill

currently, it is designed and manufactured by China Yantai Xinhai Mining Machinery Co., Ltd φ 12.19m × 10.97m do a good job of cleaning inside and outside the mixer and clearing around the mixer. The "other autogenous mill" with motor power of 28000kw is the largest autogenous mill in the world today

new progress in the structure of self grinding equipment

there are obvious defects in the traditional structure of feeding ore from the center of the cylinder and discharging ore from the center of the cylinder. The impact of ore thrown from the bottom of the cylinder and the impact force since May 28, 2017 have been directly affected by the reaction force of pulp buoyancy. Therefore, Yantai Xinhai Mining Machinery Co., Ltd. has developed an ultra-fine laminated self grinding machine, and the ore discharge port is located at the lower part of the ore discharge end face, The impact force on the ore is not affected, and the impact force is transformed into a large amount of layer pressure, which makes the grinding effect change dramatically. This structure also increases the grinding and stripping force and ore discharge speed, so it is not easy to "bulge"

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