Hot spot of the week! What are the world's mining events this week?(6.5.-6.11)
2022-06-15
China Government Network, June 6, State Councilor and Foreign Minister Wang Yi accepted an interview with the central media after concluding his visit to the Pacific Island. The main mining-related contents are as follows: first, China will give full play to its advantages in the field of new energy and renewable energy to help island countries promote green and low-carbon transformation. Second, China will actively respond to the aspirations of island countries to expand cooperation with China in the fields of mineral energy, trade and investment, expand market access to island countries, and help island countries better share the dividends of the Chinese market.
How to make the drill more durable? How to choose the drill?
2022-06-06
As a user of drilling tools, he wants to spend less cost to obtain greater profits, which requires reducing the loss of drilling tools. Therefore, the producers and users of drilling tools should cooperate closely and discuss together to make suggestions for prolonging the service life of drilling tools.
How to make a high-performance, durable DTH drill bit?
2022-06-06
DTH drill bit is a drill bit used to drill holes. Generally, it has side teeth and middle teeth. The middle teeth are used for diving, and the side teeth are used to ensure the aperture. When in use, because the force on the side teeth is perpendicular to its length, the side teeth are easy to break under continuous use, causing the drill bit to be scrapped.
Hot spot of the week! What are the major global mining events this week?(5.15-5.21)
2022-05-25
Xinhua News Agency, May 15th, the 10th issue of "Seeking Truth" magazine published an important article by General Secretary Xi Jinping "Correctly Understanding and Grasping Major Theoretical and Practical Issues in my country's Development." The article points out that it is necessary to correctly understand and grasp the supply guarantee of primary products. The first is to enhance domestic resource production and security capabilities. Intensify exploration efforts, implement a new round of prospecting breakthrough strategic actions, and improve the level of development and protection of marine resources and mineral resources. The second is to give full play to the supporting role of state-owned enterprises and speed up the development and application of advanced mining technologies for oil and gas and other resources.
Design Type and Maintenance of DTH Bit
2022-05-11
At present, there are four main end face designs of high wind pressure DTH drills: convex end face, flat end face, concave end face and deep concave center end face. Cemented carbide is mostly made of spherical teeth, elastic teeth or both spherical teeth and elastic teeth.
Popularization of Some Knowledge Points on DTH Drill
2022-05-11
The size of the down-the-hole bit impactor mainly depends on the hole diameter and rock type. For blast holes, the diameter of DTH holes varies from 89mm to 252mm. The hole diameter less than 89mm mainly adopts the top hammer type, more than 252mm multi-purpose rotary excavation method. Generally speaking, the small diameter of a DTH impactor is its nominal size, that is, the small diameter of a 4 inch impactor is 4 inches in diameter. In general, there is sufficient annular space between the impactor and the hole wall and between the drill pipe and the hole wall for slag removal.
Pay attention to lotus mountain drilling tools:
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