Welcome to visit our website.
Coal Crusher Coal crusher, also known as double stage crusher, is a highly efficient crushing equipment. It is a new type of equipment developed for the coal industry, and it mainly crushes high moisture coal. Besides, it is mainly used to crush coal cinder, slag, shale, coal gangue, and other materials. And it can be applied to building materials, …
view more
2016111 · Abstract Coal gangue, a type of kaolinite clay in coal measures, is one of the largest categories of solid industrial wastes in China. Alumina extraction from coal gangue could offer an alternative to bauxite as a source of alumina. Mechanically modification by grinding is an effective activation method to improve alumina recovery …
view more
201921 · This paper presents failure analysis of a coal crushing hammer head with its detailed metallurgical characterization. Analysis revealed that hammer heads fail in abrasive wear mode due to lean chemistry of the alloy used and lower hardness that manifests as higher abrasion rate. 6Cr1Mo steels were supplied in quenched and tempered conditions …
view more
Coal gangue is a waste derived from coal mining, and its unreasonable disposal usually causes serious land occupation and environmental pollution. Using coal gangue as a substitute for natural aggregate is an effective recycling approach, however, the high water absorption and high crushing rate of coal gangue seriously weaken its performance.
view more
2021315 · The main objective of this paper is to explore the effects of different expanding modification methods on the physic-chemical structure of coal char and its effect on char-NO interaction, and to clarify the variation of polar groups, hybrid carbons and pore structures under microwave irradiation.
view more
2015111 · Therefore, in the paper, with four ranks of coal, we studied other two potential CO sources: crushing and oxidation at ambient temperature. The more completely crushed coal produces more CO. The concentration of generated CO is inversely proportional to moisture content in coal.
view more
2023111 · Cao et al. [10] has characterized and evaluated the micro-fractures in coal induced by high pressure CO 2 fracturing and determined the micro-nano-scale damage through field emission scanning electron microscopy (FESEM), considering that the first step of the mechanism of CO 2 gas impact crushing coal matrix is CO 2 gas beam destroyed …
view more
2023327 · Coal has many closed pores that limit fluid escape. However, the evolution of these closed pores during pyrolysis has rarely been studied. Based on the method of opening closed pores through step-by-step crushing, this study investigated the pore structure of thermally-treated bituminous coal during crushing using low-field nuclear …
view more
201981 · Highlights • The environmental application of biochar was systematically reviewed and analyzed. • The modification methods of biochar was summarized and compared. • Modification can be used to improve its performance for different applications. • Biochar as persulfate activator and the corresponding mechanism was discussed. • More …
view more
In order to set up the quantitative relationship between the specific surface area increased and the CO production value during the coal crushing process, and explain the influence law of the low temperature oxidation occurred from coal after the coal crushed to the CO production value.A full closed type coal sample crushing test instrument, gas …
view more
Besides, SBM offer customers comprehensive service, including solution design, installation &training，spare parts and local service and so on.
Copyright ©2000- 2023 Shanghai SBM Company
Based on over 30 years' experiences in design, production and service of crushing and s
GET QUOTE
