Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
METHOD OF SELECTIVELY SEPARATING COAL SLURRY WITH POOR FLOATATION EMPLOYING NANOBUBBLES
Document Type and Number:
WIPO Patent Application WO/2017/219924
Kind Code:
A1
Abstract:
A method of selectively separating a coal slurry with poor floatation employing nanobubbles comprises: mixing water (2) and an appropriate amount of a foaming agent (1) evenly and providing the same to a Venturi tube (C) via a pump (B), injecting, via the Venturi tube (C), a flow, to generate a large amount of air bubbles including large bubbles and nanobubbles; providing, to a bubble elimination tub (D), a bubble containing solution (4), wherein while the larger bubbles having greater buoyancy ascend to a surface of the solution and then burst, the nanobubbles having less buoyancy are blended into the solution and move with a water flow; providing, to a normal mixing tub (F), a nanobubble-containing solution (5), coal slurry (7), and an appropriate amount of a floatation solvent (8) to mix the same, and selectively separating, by a floatation column (H), the mixed coal slurry (9), to produce refined coal (10) and tailings (11).

Inventors:
GUI, Xiahui (No1 Daxue Road, Xuzhou, Jiangsu 6, 221116, CN)
XING, Yaowen (No1 Daxue Road, Xuzhou, Jiangsu 6, 221116, CN)
LI, Chenwei (No1 Daxue Road, Xuzhou, Jiangsu 6, 221116, CN)
CAO, Yijun (No1 DaxueRoad, Xuzhou, Jiangsu 6, 221116, CN)
YANG, Zili (No1 Daxue Road, Xuzhou, Jiangsu 6, 221116, CN)
WANG, Dongyue (No1 Daxue Road, Xuzhou, Jiangsu 6, 221116, CN)
Application Number:
CN2017/088700
Publication Date:
December 28, 2017
Filing Date:
June 16, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
CHINA UNIVERSITY OF MINING AND TECHNOLOGY (No1 Daxue Road, Xuzhou, Jiangsu 6, 221116, CN)
International Classes:
B03D1/02; B03D1/006
Attorney, Agent or Firm:
BEIJING TIANDA INTELLECTUAL PROPERTY OFFICE (Room C07, 3rd Floor Guotu Culture Plaza, No. 91,West 3rd Ring North Road, Haidian District, Beijing 8, 100048, CN)
Download PDF: