Title: Raw coal sorting process
Application Number: 200610045415 Application Date: 2006.07.08
Publication Number: 1883812 Publication Date: 2006.12.27
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: B03B7/00,C02F1/00
Applicant(s) Name: Zaozhuang Coal Mining Group Co., Ltd. Address: 277000
Inventor(s) Name: Jiang Wei, Wang Mingnan, Lin Wanling, Fang Rongli,
Attorney & Agent:
Abstract:
     A raw coal separation process with high economic benefit and low cost comprises the steps of : classifying the raw coal by classifying screen; outputting the obtained underscreen materials, and washing and separating overscreen materials in a jigging machine; outputting obtained waste rocks and middlings, inducing the obtained cleaned coal blocks into staged dewatering screen to give underscreen water which is sent into deep cone concentration tank; outputting obtained large-size cleaned coal blocks, inducing the obtained small-size cleaned coal blocks into spin extractor to give underscreen water which is sent into deep cone concentration tank; outputting small-size cleaned coal blocks and inducing the centrifugate into deep cone concentration tank; underflow after condensation by the deep cone concentration tan entering into swirler; underflow in swirler entering into high frequency screen and overflowing liquid entering into slant-tube thickener; overscreen materials of high frequency screen entering into spin extractor and underscreen water entering into deep cone concentration tank; overflowing liquid in deep cone concentration tank entering into slant-tube thickener; overflowing liquid in slant-tube thickener entering into circulating water tank; condensed underflow entering into belt type press filter; outputting obtained coal slime, and the filtrate entering into circulating water tank.
Time: 15