US 12,103,012 B2
Method for improving grinding, grading and capacity of ores by reducing fineness content ratio in settled ores
Yaoji Li, Kunming (CN); Chaozhu Liu, Kunming (CN); Haibing Li, Kunming (CN); Huilin Song, Kunming (CN); Houchao Li, Kunming (CN); Wei Dong, Kunming (CN); Shuanggui Chen, Kunming (CN); Hui Zhang, Kunming (CN); Shirong Zong, Kunming (CN); Shixiang Fang, Kunming (CN); Jianyun Zhao, Kunming (CN); Chang Lu, Kunming (CN); Ning Li, Kunming (CN); Hongyan Li, Kunming (CN); Shu Fang, Kunming (CN); Jialin Zi, Kunming (CN); and Guang'ai Xiong, Kunming (CN)
Assigned to YUNNAN PHOSPHATING GROUP CO., LTD., Kunming (CN)
Filed by Yunnan Phosphating Group Co., Ltd., Kunming (CN)
Filed on Jan. 26, 2022, as Appl. No. 17/585,456.
Application 17/585,456 is a continuation in part of application No. PCT/CN2020/140550, filed on Dec. 29, 2020.
Claims priority of application No. 202010269910.5 (CN), filed on Apr. 8, 2020.
Prior Publication US 2022/0143623 A1, May 12, 2022
Int. Cl. B03B 9/00 (2006.01); B02C 17/18 (2006.01); B02C 23/08 (2006.01); B02C 23/20 (2006.01); B03B 5/34 (2006.01)
CPC B03B 9/00 (2013.01) [B02C 17/184 (2013.01); B02C 23/08 (2013.01); B02C 23/20 (2013.01); B03B 5/34 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method of improving grinding, grading and capacity of ores, the method comprising:
providing a two-stage ore grinding and grading system comprising a first fully closed circuit comprising a grinder and a hydrocyclone, wherein:
the hydrocyclone comprises a feeding pipe, a cylinder, a cone body, a release nozzle, and an overflow pipe; the cone body comprises a grading section and a separation section;
the feeding pipe is connected to the cylinder;
the feeding pipe is adapted to introduce feeding ores into the cylinder for rotation;
the grading section of the cone body is connected to the cylinder, and the separation section of the cone body is connected to the release nozzle;
the overflow pipe is disposed within the cylinder;
the hydrocyclone is adapted to rotate the feeding ores to create an overflow and underflow ores;
the release nozzle is adapted to discharge the underflow ores out of the hydrocyclone to the grinder; and
the overflow pipe is adapted to discharge the overflow out of the hydrocyclone; and
controlling parameters for ore grinding and grading as follows: controlling a centrifugal force strength dcan value of a point B; in the separation section;
controlling a fineness content ratio θ0 in the underflow ores; controlling a second-stage ore grinding and grading load Q2; and acquiring a first-stage grinding, grading and capacity Q of ores.