Waterless separator of high-sulfur coal and low-sulfur coal gangue blocks and sulfur blocks

Abstract

The invention belongs to the technical field of coal separation, and particularly relates to a waterless separator of high-sulfur coal and low sulfur coal gangue blocks and sulfur blocks. The waterless separator comprises a raw coal screening graded feed system, an elastic double-flange coal conveyor, a high-sulfur coal gangue block and sulfur block separating system, a low-sulfur conveying electronic weighing scale, a high-sulfur coal gangue block and sulfur block conveying system, an electric variable frequency speed regulating system, a programmable control type electric appliance interlocking device, a photoelectric conversion and electronic pulse filter, a detecting head shielded chamber, a 238 Pu low-energy photon source and a probe. The photoelectric conversion and electronic pulsefilter, the probe and the 238 Pu low-energy photon source form an online recognition separation detecting system of 238 Pu type coal sulfur and ash to waterlessly separate the high-sulfur coal blocks, the gangue blocks and the sulfur blocks in raw coal blocks and obtain low-sulfur low-ash refined coal, and no slime water is generated to pollute the environment, thereby greatly reducing the coal separation energy consumption and the coal separation cost.

Description

Technical field [0001] The invention belongs to the technical field of coal sorting, and specifically relates to a non-powered nuclear technology for civil use, which can remove high-sulfur coal from raw coal and lump coal using an anhydrous process, and can remove gangue lump sulfur from raw coal and lump coal. Block online recognition and separation system, namely high-sulfur coal and low-sulfur coal gangue block sulfur-free separator. Background technique [0002] At present, most coal preparation plants still use the wet coal washing method for the separation of coal. However, when the ambient temperature drops to 0℃ or below 0℃, the washing water of the wet coal washing plant will freeze with the coal. Lump and cannot be used for coal separation. Moreover, domestic and foreign low-rank coals that are easy to muddy with water account for a considerable amount, and they cannot be sent to wet coal preparation plants for washing. From the perspective of environmental protectio...

AI Technical Summary

Problems solved by technology

Beginning in 1898, British Professor Henry Lewis and others proposed the original innovative subject of using X-ray coal preparation, and the "X-ray coal preparation machine" developed by D.E. Jenkins and others in the scientific laboratory of the Scottish Coal Management Bureau in the 1970s After failing four consecutive industrial trials, there have been no reports of follow-up success in the UK so far

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