China Shenhua Energy Company is the largest coal mining state-owned enterprise in Mainland China, and the largest coal mining enterprise in the world. It is a subsidiary of Shenhua Group. It is engaged in the production and sale of coal and the generation and sale of electric power in the PRC. It operates coal mines as well as an integrated railway network and a seaport that are primarily used to transport its coal. It also operates power plants in the PRC which are engaged in the generation and sales of coal-based power to provincial and regional electric companies. Wikipedia.
Chen B.,Inner Mongolia University of Science and Technology |
Zhang D.,China Shenhua Energy Company
Applied Mechanics and Materials | Year: 2012
In this paper, the slipping of belt conveyor for the normal stable operation and full load starting in between belt and rollers are investigated. The results illustrate that the resistance of the belt conveyor in the normal and stable operation is less than that of the full load starting operation due. The possibility of slipping in normal and stable operation is less than that of the slipping start running at full load condition. Therefore, in order to check the conveyor belt slipping, we should pay attention to the full load start condition, can not check under normal and stable operation of the skid. The application of soft-start technology to solve the problem of slipping when starting was also proposed. © (2012) Trans Tech Publications, Switzerland.
Zhao Y.-Y.,Jiangsu University of Science and Technology |
Li J.-Y.,Jiangsu University of Science and Technology |
Li X.-X.,China Shenhua Energy Company
Hangkong Cailiao Xuebao/Journal of Aeronautical Materials | Year: 2014
The temperatures in welding workpieces and stirring tools were measured, and the effect of material on the temperature fields of friction stir welding was investigated. The results indicate that the temperature distributions in welding workpieces and stirring tools have the same trends for different tool materials, the temperature and its gradient reduce gradually with the temperature measurement points far away from the weld center in the workpieces and from the shoulders in the stirring tools. The peak temperature in the workpieces rises gradually along with the welding direction, and the temperature at the advancing side is higher than that in the retreated side. The temperature fluctuation in stirring tools are very small at the stable welding stage because of equilibrium between the heat quantity produced by friction between stirring tool and workpiece and that dissipated through the stirring tool. The temperature in the workpieces and stirring tools is higher while a stirring tool made of material with smaller specific heat capacity and larger thermal conductivity is used as it produce more heat to friction pairs, but lead to more heat dissipation through it.
China Shenhua Energy Company | Date: 2013-04-27
An opencast coal mine underground water reservoir comprising an impermeable layer and, provided below the impermeable layer, a water storage space and a purification layer. The water storage space comprises a first water storage space and a second water storage space. The purification layer comprises a first purification layer and a second purification layer. The first purification layer is provided horizontally in the water storage space and divides the water storage space into the first water storage space and the second water storage space. The first water storage space is provided below the impermeable layer and between same and the first purification layer. The second water storage space is provided below the first water storage space and the bottom of the second water storage space is provided at the bottom of the opencast coal mine underground water reservoir. The second purification layer is provided vertically within the second water storage space. The present invention, by constructing the opencast coal mine underground water reservoir, prevents wastage of water resource produced during a coal mining process, and by providing the purification layer in the opencast coal mining underground water reservoir, implements repeated purification of water, prevents environmental pollution, and implements a water conservation mining policy during the coal mining process.
China Shenhua Energy Company | Date: 2011-04-27
Disclosed is a method for extracting gallium from fly ash, which comprises the following steps: crushing the fly ash and removing Fe by magnetic separation; then dissolving it by using hydrochloride acid (
News Article | July 22, 2015
China’s push to ease its reliance on coal and the fossil-fuel pollution choking Beijing’s skies has started to hit sales of coal from the nation’s biggest supplier. China Shenhua Energy Company Ltd.’s shipments dropped 24 percent in the first half of the year compared with a year ago, according to a statement released Monday. The company, which employs more than 90,000 people and has a market value of $59 billion, blamed falling consumption and “heightened pressure for environmental protection.” President Xi Jinping’s drive to punish polluters “with an iron hand” is aimed at seeing greenhouse gas emissions peak around 2030 and removing the smog from the skyline of China’s biggest cities. The result is shifting more resources to renewable energy and starting to ratchet back on coal demand. “To see that a lot is happening on coal in China right now is very encouraging and a positive signal in the right direction,” Niklas Hoehne, founding partner at the NewClimate Institute, said by phone. “The activities happening right now on coal in China have a significant impact. Since China is so big, it has an affect on global greenhouse gas emissions.” China remains the biggest emitter of the pollution blamed for global warming, with the majority of its electricity generated from coal-fired plants, according to the International Energy Agency. The institution that advises industrial nations estimates China could cut that portion. The coal consumption cuts may not be solely a product of environmental concerns. “Coal is the one industry where China got worried about the corporate debt structure,” Colin Hamilton, global head of commodities research at Macquarie Group Ltd., said by phone. “Thermal coal consumption is down in our numbers at 4 percent year on year. Capacity has been pretty sticky, and there has been government pressure on Shenhua to keep production down.”