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Gu D.-Z.,Shenhua Group Corporation Ltd
Meitan Xuebao/Journal of the China Coal Society | Year: 2015

In western China (Shanxi, Shaanxi, Inner Mongolia, Ningxia and Gansu), there are rich coal resources, while there are also water resource shortage. A surface evaporation capacity is above six times of rainfall. The large-scale, intensive, modern coal mining can result in the formation of crack, destroy the original underground water system, and the generation of lots of mine water. In order to ensure the underground production safety, mine water is traditionally discharged to the surface. However, due to large evaporation capacity in the western area, the discharged mine water can quickly be evaporated and is therefore lost after being discharged. Therefore, a technical approach of storage and utilization of mine water using underground reservoirs of coal mine was proposed, which included design, construction and operation technology. The technical system is composed of water resource prediction, reservoir site selection, reservoir capacity design, dam construction, safety guarantees, water quality control, etc. Currently, 32 coal mine underground reservoirs has been established in Shendong Mining Area, which can provide 95 percent of total water consumption, and been in operation safely with a low cost. It is shown that the underground coal mine reservoir is a safe, economical and scaled water storage technology, using natural underground space and natural rock purification, which could be of great significance in the protection and utilization of underground water resources for coal mining in the western mining area of China. ©, 2015, China Coal Society. All right reserved. Source

Zhang Y.-Z.,Shenhua Group Corporation Ltd
Meitan Xuebao/Journal of the China Coal Society | Year: 2011

Reviewed the construction and operation of Shenhua's direct coal-to-liquid demonstration project and coal-to-olefins demonstration project and presented the solved engineering roadblocks, such as technique amplification, catalyst development, core device design, and achieved key technological achievements, such as reactor material choice, super huge forging manufacturing, transnormal equipment installation, equipment operation. At last, with the international oil supply and demand situation, put forward the development of clean coal conversion will be based on large scale intensive clean coal conversion engineering technologies and proposed the outlook of modern coal-to-liquid-and-chemicals techniques and industry will be very bright. Source

Xue J.-L.,Shenhua Group Corporation Ltd
Tiedao Xuebao/Journal of the China Railway Society | Year: 2015

The feasibility and strengthening measures for the existing track of Shenchi-Huanghua Railway where the trains with the axle load of 30 t operate were studied using theoretical and testing technologies. By applying dynamic simulation analysis in combination with actual test involving a 30 t axle load freight train, the feasibility of the track structure under 30 t axle load was evaluated. The analysis results showed that the existing track structure meets the operating requirements of a small number of trains with heavy axle load over a certain period of time. However, the dynamic loads by heavy axle load freight cars acting on the track increased significantly. The existing track structure faces problems such as increased failures and shortened life of track parts, and insufficient stability reserve of sharp curves. Based on the characteristics of dynamic loads of the track structure induced by trains with the axle load of 30 t, an analysis was performed on the strengthening measures for track structure, focusing on the research of SH-I sleepers, SH-I fasteners, strengthening measures for sharp curves, flash butt welding for 75 kg/m rail, and grinding template in tangent track and turnouts. All of the measures have been applied in Shenchi-Huanghua Railroad. The track structure has been improved with the strengthening measures and as a result meets the operation requirements of the trains with axle load of 30 t. ©, 2015, Science Press. All right reserved. Source

Xue J.-L.,Shenhua Group Corporation Ltd
Tiedao Xuebao/Journal of the China Railway Society | Year: 2015

Based on the investigation of the current operational state of bridges and culverts along the Shuo-Huang Railway, an analysis was performed on the ratio of the actual and designed live load effects on the bridges under the actual 30 t axle load of the freight train. The precept of the strengthening and the reconstruction of the bridges loaded under the heavy axle load was proposed. Based on a comprehensive test and the characteristics of the structures of the bridges and culverts, the effect of the 30 t axle load of the freight on bridges and culverts of various spans was studied. The main technical problems faced by bridge and culvert structures under the heavy haul transportation condition were analyzed in terms of reinforced concrete simply-supported girder, prestressed concrete girder with normal height, prestressed concrete shallow girder, bridge bearing, reinforced concrete culvert, framed bridge, and footing of abutment and pier. The challenge of the heavy axle load to the current bridges and culverts at service required strengthening with the prestressed carbon fiber reinforcement technology, the auxiliary girder technology, small span bridges reinforcement technology and a new type of bearing for overload. These strengthening technologies, which were applied in Shuo-Huang Railway, proved to be effective, thereby improving the capacity of the bridges and the culverts to satisfy the operation requirement of the freight with the 30 t axle load. ©, 2015, Science Press. All right reserved. Source

China National Institute of Clean, Low Carbon Energy and Shenhua Group Corporation Ltd | Date: 2012-11-27

The present invention discloses a method for preparing a soda-lime-silica glass basic formulation and a method for producing soda-lime-silica glass, comprising the steps of: pre-desiliconizing silicon-containing powdery industrial waste with a sodium hydroxide solution; introducing carbon dioxide for carbonation decomposition, and filtering to obtain a silicic acid precipitate and a sodium carbonate solution; drying the silicic acid precipitate to obtain silicon dioxide; adding lime milk into the filtered sodium carbonate for causticization, and filtering to obtain a sodium hydroxide solution and a calcium carbonate precipitate; drying the calcium carbonate precipitate; using said silicon dioxide and part of the calcium carbonate and adding sodium oxide. The present invention further discloses a method for extracting aluminum from coal ash for co-production of soda lime glass, which uses silicon dioxide obtained from alkali dissolution and desiliconization of coal ash and calcium carbonate generated from causticization as main raw materials. The method for extracting aluminum from coal ash for co-production of soda lime glass according to the present invention integrates and optimizes a process of extracting aluminum from the coal ash, has a high material and energy utilization rate, good quality of co-product glass, and high added value, and can greatly improve economical efficiency of aluminum extraction of coal ash.

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