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Investigation on the interaction mechanism during co-combustion of sewage sludge and coal slime: The effect of coal slime type and pretreatment method

Science of The Total Environment
Co-combustion of sewage sludge (SS) and coal slime (CS) is the preferred method for mitigating their environmental impact and increasing their added value. However, the interaction mechanism between SS and CS during the co-combustion process has not yet developed a unified understanding.
Yanlin, Wang   +6 more
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IMPROVEMENT OF THE EFFICIENCY OF FINE COAL SLIMES FLOTATION

2016
The problems of selective flotation of fine slimes have been analyzed. Different technical solutions aimed at the improvement of the efficiency of flotation of coal containing fine slimes have been considered. As a criterion of the efficiency of separation results in flotation the index of maximum flotation ability has been suggested, which is ...
Y. B. Rubinstein   +2 more
openaire   +1 more source

Effect of flotation promoter on the rate of coal slime flotation

Journal of Mining Science, 2014
The new flotation promoter (PGS) was synthesized with natural cottonseed oil and industrial by-products, and the new emulsified flotation agent (ZFC) for coal was prepared by 3% PGS promoter, 27% diesel oil and 70% water. The ZFC and diesel oil were used as collector to do the flotation rate experiments with two 1/3 coking coal samples, and first-level
W. Xie, G. Cao, X. Ren, Y. Li
openaire   +1 more source

SUPER CLEAN COAL PRODUCTION WITH ORGANIC REAGENTS FROM SLIME COAL

2022
In this study, it was aimed to produce super clean coal from Zonguldak slime coal with 29.67% ash with a completely organic process. For this purpose, slime coal was first enriched by flotation, and then super clean coal was produced by leaching with organic acids. Only organic consumables were used in laboratory-scale studies. In this way, super clean
Akın A., Hacıfazlıoğlu H.
openaire   +1 more source

Raising Effectiveness of Polymeric Flocculants for Coal Slime Aggregation

Journal of Mining Science, 2000
Experimental data on flocculant dissolution kinetics are presented. It is established that in order to obtain homogeneous solutions of various water-soluble polymers, it is necessary to create an optimum condition for each reagent. A technology and an equipment that allow full homogenization and precise batching of high-molecular reagents are developed
G.L. Yevmenova, A.A. Baichenko
openaire   +1 more source

Density Measurement of Coal Slime Powder by Pycnometric Method

Advanced Materials Research, 2013
Coal slime is solid waste with high solid content, viscosity, fine particles, which is generated in the production process of the coal industry. The density of its powder is an important factor to affect the resistance characteristics of pipeline transportation.
Na Li   +4 more
openaire   +1 more source

Benefication of coking-coal slimes by means of screen centrifuges

Coke and Chemistry, 2009
A new slime-benefication technology has been developed at Coal Preparation Plant Neryungrinskaya. In this technology, the product is separated in screen centrifuges. As a result, small particles with relatively high ash content are extracted in the centrifugate. Correspondingly, the cake has the required ash content of ≤10%.
S. A. Osadchii   +2 more
openaire   +1 more source

Slime heavy medium cyclone advantages in coal production

Filtration + Separation, 2016
Slime heavy medium cyclone is used for coarse slime separation in many new coal preparation plants. This article demonstrates how it reduces ash content in clean coal, coarse slime entering the float processing, production costs and increases economic efficiency.
openaire   +1 more source

Test of Coal Slime Pumping by Single-Screw Pump

Advanced Materials Research, 2013
Previous research on thick pastes such as coal slime was using two-cylinder piston pump as power equipment.Since the pressure fluctuation was big,flow measurement was not that accurate. In order to solve the problem, this paper will presents a feasibility study on conveying coal slime by single-screw pump. We used a single-screw pump as power equipment
Hua Xu Yang   +4 more
openaire   +1 more source

Effect of ultrasonic pre-treatment on coal slime flotation

2019
Physicochemical Problems of Mineral Processing. Vol. 56, 2020, Issue 1, s. 173-183 ; Fizykochemiczne Problemy Przeróbki Kopalin (1967-1976) ; Fizykochemiczne Problemy Mineralurgii ISSN 0137-1282 (1977-1999) ; Physicochemical Problems of Mineral Processing ISSN 1643-1049 (od 2000 ...
Lv, Wenbao   +4 more
openaire   +2 more sources

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