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China has set A New Record of the World's of drill deep well

China has set A New Record of the World's of drill deep well Recently, the China Institute of Coal Science Xi'an Research Institute (Xi'an Research Institute for short) applied the directional drilling technology and equipment developed by itself in Baode Coal Mine of Shendong Coal Gr... more

Main characteristics of DTH drilling rig

Main characteristics of DTH drilling rig:* DTH Drilling rigs drill by air dth hammer, which is characterized by submersible holes. * The DTH Hammer uses compressed air to do work, which makes the piston produce high frequency (1500 times / min) impingement. The high energy pis... more

The difference between mechanical method for rock drilling.

1.There are three kinds of mechanical methods of drilling rock: impact, rotation and rotating impact.2.Impact drilling: give a impact force to drill bit of the rock surface , under which the drill bit cuts into and breaks the rock.3.Rotating rock drilling:give a torsional force and a fixed axial ... more

Development of DTH hammer

DTH hammer is divided into a valved air distribution hammer and a valveless air distribution hammer according to the type of the gas distribution device. press The number of pistons is divided into a single piston hammer and a multi-piston hammer. The air pressure is divided into h... more

About how to choose the material and heat treatment deep-hole and large-bore hole DTH drill bit

With the rapid development of socialist modernization, the use of large boredrilling is becoming more and more extensive, such as the construction of special water conservancy and hydropower projects, pile foundation, machine and well engineering, national defense construction, mines and oil mini... more

Foundation pile and breaking rock of edge tools- large diameter down-hole cluster Hammer

Foundation pile and breaking rock of edge tools- large diameter down-hole cluster Hammer The application fields of large diameter DTH hammer include: urban high-rise buildings, high-speed rail and highway, bridge, subway continuous wall, hydropower station, nuclear power plant, pho... more

2019-12-14 01:26:43

The largest copper mine in Africa has been won by Chinese companies at a cost of 8 billion.

The largest copper mine in Africa has been won by Chinese companies at a cost of 8 billion. Jiangxi Copper Industry (Hong Kong) Investment Co., Ltd. (hereinafter referred to as JCCI), a wholly-owned subsidiary of the company, intends to acquire a 100% stake in PIM Crupo Holding... more

2019-08-31 17:44:42

Mission: Superman service is always on the way

Bloomberg released a bombshell, Canadian mining giant barrick gold company has been through a wholly owned subsidiary acquired one thousand shares of newmont mining companies in the United States, Australia, bankers said barrick planned $19 billion acquisition of newmont this could be one of the ... more

2019-08-31 21:31:50

How to choose the Dth hammer of prospecting and geotechnical drilling engineering

Bloomberg released a bombshell, Canadian mining giant barrick gold company has been through a wholly owned subsidiary acquired one thousand shares of newmont mining companies in the United States, Australia, bankers said barrick planned $19 billion acquisition of newmont this could be one of the ... more

2019-08-31 17:41:35

The largest M & A in the mining industry,the birth of the gold industry giant

At this year's two sessions, li wei, a member of the standing committee of the Chinese people's political consultative conference (CPPCC), raised the issue of urban heating and the replacement of loose coal."Geothermal energy development and utilization can be increased in places whe... more

2019-08-31 21:33:55

Effective use of geothermal energy, and the many counties of Hebei Province will be praised by the Chinese Government's two meeting