The coal gangue is non-combustible materials which are physically separated from bulk coal during coal-mining activities. The average gangue production ranges from 10% to 15% of the raw coal production, which depends on the geological and mining characteristics 1.The rapid development of coal mining industry in China over the last 20 years has resulted in the large amount of coal gangue ...

power plant of Xinyang Colliery. ­e coal gangue and waste concrete act as the aggregate in the CWCGB. Coal gangue is extracted from the gangue mountain of the Xinyang coal mine in Shanxi province, which is categorized into ne (0–5mm) and coarse (5–15mm) gangue according to the particle size range. ­e mineral composition and chemical

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In this paper, slag is used as a calcium source to make alkali-activated coal gangue–slag (AACGS) based material. The reaction mechanism of AACGS materials was discussed in depth by means of XRD, FT-IR, 29 Si MAS-NMR (nuclear magnetic resonance) and SEM-EDS (energy dispersive spectrometer). The experimental results show that coal gangue can be used as a raw material for preparing alkali ...

JOURNAL METRICS. Impact Factor (JCR) 2019: 0.259 ℹ Impact Factor (JCR): The JCR provides quantitative tools for ranking, evaluating, categorizing, and comparing journals. The impact factor is one of these; it is a measure of the frequency with which the "average article" in a journal has been cited in a particular year or period.

The experimental results indicate that the Rosin-Rammler distribution could accurately describe the particle size distribution of broken coal and gangue under different impact velocities, and there is a minimum overlap region when the impact velocity is 12.10 m/s which leads to the minimum mixed degree of coal and gangue, and consequently the ...

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.

Top coal caving simulation test: put 300 mm crushed coal in the funnel, and then tiled 500 mm crushed gangues, the detector height was reduced to 200 mm from the platform bottom plate, the platform was lifted to a tilt angle of 35°, then opened the software to detect the background radiation for a certain time, then opened the coal to let the coal and gangue run out freely, to detect the ...

Coal gangue aggregate was employed as high-grade railway subgrade filler andprepared concrete for roadbed drainage (named coal gangue roadbed protecting concrete—CGRPC). First, the basic properties of coal gangue such as particle size distribution, ignition loss, strength change under water softening, and compression performance were measured.

The customer has coal gangue resources and uses stone to make paper wanted to find superfine grinding and classifying technology They learned that ALPA has superfine process and equipments After inspection and testing they believed that ALPA company has rich experience in the superfine grinding and classifying. More Details . XRay computed tomography for 3D analysis of gangue . 2020 XRay ...

The result shows that lead content in the coal varied from 1.45 to 63.60 mg kg(-1), averaging 23.95 mg kg(-1); the lead content of the sulfur ball and the pyritic gangue in the coal seam ranges from 70.26 - 1060 mg kg(-1), with an average of 271.28 mg kg(-1); the lead content of the gangue is from 29.5 to 77.81 mg kg(-1), averaging at 40.77 mg ...

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Synthesis of NaY zeolite from coal gangue and its characterization for lead removal from aqueous solution Highlights•Determined optimal parameters for synthesizing NaY zeolite from coal gangue.•Studied Pb2+ removal efficiency of synthesized NaY from quartz abundant coal gangue.•Investigated stability and durability of the prepared adsorbent.•Proposed adsorption .

Sorting gangue from raw coal is an essential concern in coal mining engineering. Prior to separation, the location and shape of the gangue should be extracted from the raw coal image. Several approaches regarding automatic detection of gangue have been proposed to date; however, none of them is satisfying. Therefore, this paper aims to conduct gangue segmentation using a U-shape fully ...

Building Materials Equipment : Coal Gangue Dryer in Iran - Building materials equipment mainly includes cement production equipment, activated lime production equipment, etc., standardized production processes to ensure the smooth operation of equipment and processes, and ensure the interests of customers. Get Price. PRODUCT. Coal Mine Explosion In Irans North The Seattle Times. May 03 .

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Coal Gangue Crusher Leads The Field Of Development, Aug 23, 2014· Coal Gangue Crusher Leads The Field Of, not only can reduce the gangue large accumulation of waste on land and water pollution caused by system .

"Coal industry in 12th Five-Year plan" clearly put forward in 2015 the comprehensive utilization rate of coal gangue to reach 75%, coal gangue power generation saves about 85 million tons of standard coal, coal gangue and fly ash building materials to save the standard coal of 10 million tons. In 2015, coal gangue comprehensive utilization ...

Coal gangue is the solid waste in coal production and preparation. The coal gangue yield is 10%–30% of the raw coal. According to incomplete statistics, the ... 2000). Therefore the disposal leads to various environmental problems, such as land occupation, decline of soil productivity, landscape devastation, and pollution of atmosphere, water ...