coal fines Articles
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Cleaning of Dukki (Baluchistan) coal by oil agglomeration process
Cleaning of coal fines by oil agglomeration is an efficient technique by which an appreciable recovery of combustible matter and significant reduction in ash forming minerals are possible. In this study, oil agglomeration process has been employed to clean indigenous coal under the influence of parameters such as oil type, particle size and the pH value of aqueous medium. As agglomerant, castor ...
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Studies on coal flotation in flotation column using statistical technique
Flotation of Indian high ash coking coal fines to obtain clean coal has been reported earlier by many authors. Here an attempt has been made to systematically analyse factors influencing the flotation process using statistical design of experiments technique. Studies carried out in a 100 mm diameter column using factorial design to establish weightage of factors such as feed rate, air rate and ...
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Hydrophobic aggregation of fine particles in high muddied coal slurry water
The hydrophobic aggregation of fine particles in high muddied coal slurry water in the presence of four quaternary ammonium salts of 1231(dodecyl trimethyl ammonium chloride), 1431(tetradecyl trimethyl ammonium chloride), 1631(cetyl trimethyl ammonium chloride) and 1831(octadecyl trimethyl ammonium chloride) was investigated through the measurement of contact angles, zeta potentials, ...
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Chemical kinetics parameters of nuclear graphite gasification
This paper provides chemical kinetics parameters for the gasification of nuclear graphite grades of IG–110, IG–430, NBG–18 and NBG–25 and presents empirical correlations for their surface areas of free active sites as a function of mass. The kinetics parameters for the four elementary chemical reactions of gasification of these grades of nuclear graphite include the values ...
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How to create qualitative fuel from water and coal: case study
What is “coal-water fuel”? Coal-water fuel (CWSF or CWS or CWF) is a fuel which consists of fine dispersed coal particles, water and plasticizing agent. This type of fuel is widely used as an alternative to gas and black oil on different heat generating facilities. The operational economy is the main of advantages of the coal-water fuel. CW fuel has almost the same heat ...
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Utilization of fly ash in construction industries for environment management
Abstract Fly ash is naturally cementations coal combustion by-product. A fine glass powder recovered from the gases of burning coal during the production of electricity is fly ash. The combustion of powdered coal in thermal power plants produces fly ash. Disposal of high amount of fly ash from thermal power plants absorb huge amount of water, energy and land area by ash ponds. Generation of ...
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What Should be Noted when Using a Rotary Kiln?
Rotary kiln for sale is the core of the whole cement production line and the technical management plays a vital role in the stable and continuous operation of rotary kiln. Here Kefan Machinery gives a summary to the possible failure and solutions in the running process of rotary kiln for your reference. (1) Note the raw materials and comburant. Suitable fineness of the raw materials and ...
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Formation and emission of fine particles from two Danish pulverised coal fired power plants
ABSTRACT Measuring campaigns at two Danish pulverised coal fired power plants has been performed. The power plants are equipped with the same type og flue gas cleaning devices. The concentrations and chemical compositions of the formed particles were similar for the two plants. The measurements were performed simultaneously at three locations including both total dust measurements and fine ...
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