Results 91 to 100 of about 36,593 (233)

The flow behaviour of inorganic - wood fibre slurries in pressurised pipes [PDF]

, 2001
Understanding the flow behaviour of inorganic-wood fibre slurries is important for developing new process equipment for the cement fibreboard industry. Little is reported in the technical literature and generally slurry flow knowledge is limited to a few
Berry, Craig, Walmsley, Michael R.W.
core   +1 more source

Research on the mechanism of fracture grouting diffusion and its application based on slurry-rock mass coupling effect

Meitan kexue jishu
The deep mining process of North China type coalfields is highly threatened by the threat of water damage from the floor limestone aquifer. By arranging grouting holes reasonably to inject a large amount of slurry into the aquifer that directly threatens
Minglei ZHAI, Haibo BAI
doaj   +1 more source

Structural evolution of coal sludge filter cake and optimization mechanism of combined chemicals in the process of filtration pressing

Meitan xuebao
The structure of coal sludge filter cake has an important influence on the dewatering effect. In this study, the characteristics of the filter cake structure and its evolution law in the process of filter press dewatering were investigated by using the ...
Xiaomin MA, Xiaosong SUN, Xianshu DONG, Yuping FAN, Ming CHANG   +4 more
doaj   +1 more source

Coal desulfurization by low temperature chlorinolysis, phase 3 [PDF]

Laboratory scale, bench scale batch reactor, and minipilot plant tests were conducted on 22 bituminous, subbituminous, and lignite coals. Chemical pretreatment and post treatment of coals relative to the chlorination were tried as a means of enhancing ...
Ernest, J., Kalvinskas, J. J., Rohatgi, N. K.   +2 more
core   +4 more sources

Site tracing experiment on the diffusion range of regional grouting renovation under the coal seam floor aquifer

Meitan xuebao
In recent years, to liberate coal resources from high pressure limestone water on the coal seam floor, North China Coalfields have generally adopted surface directional drilling technology to carry out regional grouting reinforcement and transformation ...
Yan GUO, Herong GUI, Huang HONG, Yongqing CHEN, Xiaoyu SUN, Rongjie HU, Xiangdong GUO, Qun ZHAO, Yanan DAI, Hao YU, Jun LI, Liang SUN, Chuan GAO   +12 more
doaj   +1 more source

Development of a compact excavator mounted dust suppression system [PDF]

, 2013
This paper reports on the investigation of an excavator mounted dust suppression system for demolition and construction activities. Ever increasing pressure is placed on contractors to improve their environmental performance, especially dust emissions ...
Ahn, Ahn, Arikan, Bartell, Copeland, De Vocht, Dimari, Driussi, Edwards, Gambatese, Gunson, Holman, HSE, HSE, Innovative Technology, Kaveri Ultra Ltd, Kieran Andrew Wallace, Larman, Linnainmaa, Makuch, Mondal, Nij, Petavratzi, Peterson, Pope, Sealpump, Turnkey, Turnkey, Vallero, Wai Ming Cheung, Wessexwater, Wu, Zhao   +32 more
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Gasification of Coal and Heat Integration Modification for IGCC - Integrated Gasification Combined Cycle

Chemical Engineering Transactions, 2015
Use of energy is closely related to the development of an economy. The most useful form of energy in the modern world is electricity. IGCC has higher fuel flexibility (biomass, refinery residues, petroleum coke, etc.) and generates multiple products ...
D. Amer, M. Gadalla, F. Ashour
doaj   +1 more source

Coal pump development phase 3 [PDF]

Techniques for achieving continuous coal sprays were studied. Coazial injection with gas and pressure atomization were studied. Coal particles, upon cooling, were found to be porous and fragile.
Gerbracht, F. G., Kushida, R. O., Mahajan, V., Sankur, V. D.   +3 more
core   +1 more source

Artificial neural network approach for rheological characteristics of coal-water slurry using microwave pre-treatment

International Journal of Mining Science and Technology, 2017
Detailed experimental investigations were carried out for microwave pre-treatment of high ash Indian coal at high power level (900 W) in microwave oven. The microwave exposure times were fixed at 60 s and 120 s.
B.K. Sahoo, S. De, B.C. Meikap
doaj   +1 more source

Energy efficient continuous flow ash lockhopper [PDF]

, 1989
The invention relates to an energy efficient continuous flow ash lockhopper, or other lockhopper for reactor product or byproduct. The invention includes an ash hopper at the outlet of a high temperature, high pressure reactor vessel containing heated ...
Collins, Earl R., Jr., Dubis, David, Suitor, Jerry W.   +2 more
core   +1 more source