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16
2021-08
At about 10:16 on August 10, 2021, one person was injured in the process of withdrawing the roadheader from Zhengzhu Coal Industry of Jinneng Holding Coal Industry Group in Zuoquan County, and died on the same day after rescue.
2021-08-16
16
2021-08
According to the Qinghai Provincial Emergency Management Department, at 12:10 on August 14, 2021, a mud collapse accident occurred in the Chaidar Coal Mine of Xihai Coal Company, Gangcha County, Haibei Prefecture, Qinghai Province. There are 21 underground workers. After the accident, the Chaidar Coal Mine Rescue Team immediately organized rescue and rescued a total of 2 people, of which 1 died, the other 1 was not life-threatening, and 19 people were trapped. At present, the coal mine rescue team and the fire brigade of Haibei Prefecture have gone to the scene of the accident to carry out rescue. (head office reporter Li Yonghui, Liu Cheng, Mao Baowu) [State Administration of Mine Safety Supervision] August 14, 2021, Qinghai Xihai Coal Development Co., Ltd. Chai
2021-08-16
16
2021-08
How to maintain the use of diamond composite bit for a long time? -- Yikuang Technology
When people hear the diamond composite drill for the first time, they will also think that this should be a kind of equipment with excellent quality, because whether it is the structure of the shape or its material, it can act on some hard strata, so it has been recognized by many friends, but why can it be used for a long time? After investigation, many people will find out why the diamond composite drill bit can get everyone's attention, will not affect the use of the effect, mainly because he has a very good quality, and the material also has a higher characteristics. So in this case can be satisfied
2021-08-16
16
2021-08
The main characteristics of diamond composite piece drill bits-Yikuang Science and Technology
Diamond composite bit plays an extremely important role in the geological exploration process, and generally plays a role in the drilling construction industry. But most people may not understand the PDC bit will have what kind of characteristics and structure in the use of the process and what role? First of all, we need to understand what is the difference between this and diamond bits? There is no obvious difference between PDC bits and diamond bits, the two have a lot of similarities, but from the structural point of view is not the same. PDC bit is a combination of cutting teeth and bit body, and the bit body has a variety of different materials, generally will choose hard combination
2021-08-16
04
2021-08
Army Day | | Guarding the Chinese Dream, Warm-blooded Chinese Soul!
Army Day | | Guarding the Chinese Dream, Warm-blooded Chinese Soul!
2021-08-04
04
2021-08
Staff Care | Other Collective Birthday Party, Warm Heart
Staff Care | Other Collective Birthday Party, Warm Heart
2021-08-04
03
2021-08
Crawler type full hydraulic tunnel drilling rig for coal mine
Crawler type full hydraulic tunnel drilling rig for coal mine In view of the actual situation that the pressure relief control of roadway pressure relief control, gas drainage control and other projects are difficult and the gas drainage control efficiency is low, our company has newly developed and produced mechanical hole making equipment for coal mines.
2021-08-03
23
2021-07
What are some practical effects of triangular drill pipe? What are the advantages?
In the current industrial environment, many people will see that the occurrence probability of triangular drill pipe is relatively high. For example, in carbon well tools with different structures, its role is that it can be used in various complex terrain, so it begins to get more people's attention. At the same time, people will also be more concerned about what effects it has and why it can be recognized by more people? First of all, the material selected for the triangular drill pipe is mainly alloy material, so it will not be affected by the outside in the process of use, which can effectively cause damage to the drilling tool, so it will have a good effect in the process of use.
2021-07-23
23
2021-07
12 patents in the coal industry won the 17th China Patent Award
The 17th China Patent Gold Award (1 item) 1. Patent Number: ZL 201210134162.5 Patent Name: A Distributed Utilization Method of Mine Groundwater Patentee: China Shenhua Energy Co., Ltd., China University of Mining and Technology (Beijing) Inventor: Gu Dazhao, Zhang Kai, Chen Sushe, Wei Wenyu, Yang Feng The 17th China Patent Excellence Award (11 items) 1. Patent Number: ZL 200910185319.5 Patent Name: A method of bag filling in the mining area Patentee: Jizhong Energy Handan Mining Group Co., Ltd., China University of Mining and Technology Inventor: Sun Chundong.
2021-07-23
