Title:
METHOD FOR IMPROVING GRINDING AND CLASSIFICATION CAPACITY BY REDUCING SAND DEPOSITION FINENESS RATIO VALUE
Document Type and Number:
WIPO Patent Application WO/2021/203752
Kind Code:
A1
Abstract:
Disclosed is a method for improving a grinding and classification capacity by reducing a sand deposition fineness ratio θ0 value, relating to the technical field of grinding and classification. When a grinding machine and a cyclone form an organic unit to create a technological grinding and classification process, a traditional method uses an overflow fineness β value to improve capacity, whereas in the present method, a grinding and classification capacity is improved and power consumption is reduced by reducing a sand deposition fineness ratio θ0 value. In the present method, a grinding machine and a hydrocyclone form a first-section fully-closed-circuit two-section grinding and classification technological process and a first-section open-circuit two-section grinding and classification technological process, and a grinding and classification capacity chain is improved as follows: control a point B (aa) value on a second-section Φ500 mm hydrocyclone separation cone → control a sand deposition fineness ratio θ0 value → control a second-section grinding and classification load (Q2) → control a first-section ore grinding and classification capacity Q value. If θ0＝23.74％, the overflow concentration and fineness increase instead of being reduced, and the capacity is improved by 28.30%.
Inventors:
LI YAOJI (CN)
LIU CHAOZHU (CN)
LI HAIBING (CN)
SONG HUILIN (CN)
LI HOUCHAO (CN)
DONG WEI (CN)
CHEN SHUANGGUI (CN)
ZHANG HUI (CN)
ZONG SHIRONG (CN)
FANG SHIXIANG (CN)
ZHAO JIANYUN (CN)
LU CHANG (CN)
LI NING (CN)
LI HONGYAN (CN)
FANG SHU (CN)
ZI JIALIN (CN)
XIONG GUANGAI (CN)
LIU CHAOZHU (CN)
LI HAIBING (CN)
SONG HUILIN (CN)
LI HOUCHAO (CN)
DONG WEI (CN)
CHEN SHUANGGUI (CN)
ZHANG HUI (CN)
ZONG SHIRONG (CN)
FANG SHIXIANG (CN)
ZHAO JIANYUN (CN)
LU CHANG (CN)
LI NING (CN)
LI HONGYAN (CN)
FANG SHU (CN)
ZI JIALIN (CN)
XIONG GUANGAI (CN)
Application Number:
PCT/CN2020/140550
Publication Date:
October 14, 2021
Filing Date:
December 29, 2020
Export Citation:
Assignee:
YUNNAN PHOSPHATING GROUP CO LTD (CN)
International Classes:
B02C23/20; B03B5/34
Domestic Patent References:
| WO2007130674A2 | 2007-11-15 |
Foreign References:
| CN111437982A | 2020-07-24 | |||
| CN105562184A | 2016-05-11 | |||
| CN104492615A | 2015-04-08 | |||
| CN102921523A | 2013-02-13 | |||
| US20170333961A1 | 2017-11-23 | |||
| US5183211A | 1993-02-02 |
Attorney, Agent or Firm:
KUNMING JINWEI PATENT & TRADEMARK AGENT CO., LTD. (CN)
Download PDF: