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Title:
SORTING AND RECYCLING SYSTEM AND SORTING AND RECYCLING PROCESS FOR COARSE-GRAINED COAL SLURRY
Document Type and Number:
WIPO Patent Application WO/2020/252960
Kind Code:
A1
Abstract:
A sorting and recycling system and a sorting and recycling process for coarse-grained coal slurry, belonging to the technical field of coal sorting and processing, and solving the problems in the prior art of a complex process flow, high costs, high energy consumption, and environmental hazards caused by a coarse-grained coal slurry sorting process. The sorting and recycling system is provided, along a sorting pipeline, with a stirring barrel (1), a hydraulic flotation machine (5), a three-product swirl classification screen (8), a pulp pre-treatment device (11) and a flotation column (12); a first buffer tank (6) is provided between the hydraulic flotation machine and the three-product swirl classification screen, a second buffer tank (9) is provided between the three-product swirl classification screen and the pulp pre-treatment device, and the pulp pre-treatment device is connected to the flotation column. The sorting and recycling process comprises the following steps: feeding feed-in coal slurry a into a stirring barrel, stirring same into pulp, then feeding same into a hydraulic flotation machine for primary classification, and performing classification of a coarse grain concentrate e, a micro-fine grain coal slurry f and a fine grain coal slurry, and precisely sorting the fine grain coal slurry. Continuous coal slurry sorting of coarse-grained coal slurry in a short process flow is achieved.

Inventors:
XING, Yaowen (CN)
DING, Shihao (CN)
GUI, Xiahui (CN)
ZHANG, Youfei (CN)
CAO, Yijun (CN)
LUO, Jiaqian (CN)
LI, Ming (CN)
GUO, Fangyu (CN)
XU, Mengdi (CN)
XIA, Yangchao (CN)
YANG, Zili (CN)
Application Number:
CN2019/106974
Publication Date:
December 24, 2020
Filing Date:
September 20, 2019
Export Citation:
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Assignee:
CHINA UNIVERSITY OF MINING AND TECHNOLOGY (CN)
International Classes:
B03B7/00; B03B9/00; B03D1/02; B03D1/14
Attorney, Agent or Firm:
NANJING SUGAO PATENT AND TRADEMARK FIRM (ORDINARY PARTNERSHIP) (CN)
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