Title:
EXTERNAL CIRCULATION ROLLER TYPE VERTICAL MILL
Document Type and Number:
WIPO Patent Application WO/2021/093255
Kind Code:
A1
Abstract:
Disclosed is an external circulation roller type vertical mill, wherein a partition plate (16) is arranged at the middle-upper part of a mill shell and divides the mill shell into a powder grinding barrel (29) and a powder selecting barrel (12); a powder selecting machine is arranged in the powder selecting barrel (12), an outlet of a powder selection coarse-powder ash hopper (14) of the powder selecting machine penetrates the partition plate (16) and extends into the powder grinding barrel (29), and an air inlet (15) is provided in the lower part of the powder selecting barrel (12); and a grinding disc (20) and a grinding roller (18) are arranged at the lower part of the powder grinding barrel (29), a nozzle ring (22) is arranged between the outer circumference of the grinding disc (20) and the mill shell, a discharge ring channel (23) is arranged at the lower part of the nozzle ring (22), a discharge port (25) is further provided in the bottom of the discharge ring channel (23), and a feeding pipe (6), used for feeding materials into the powder selecting barrel (12) by means of a material lifting mechanism, of the powder selecting machine is further arranged at the discharge port (25).
Inventors:
ZHANG GUICAI (CN)
LIU ZIHE (CN)
LIU ZIHE (CN)
Application Number:
PCT/CN2020/082621
Publication Date:
May 20, 2021
Filing Date:
March 31, 2020
Export Citation:
Assignee:
NANJING JULI INTELLIGENT MANUFACTURING TECH INSTITUTE CO LTD (CN)
International Classes:
B02C15/00; B02C23/20
Foreign References:
| CN110860342A | 2020-03-06 | |||
| CN110860343A | 2020-03-06 | |||
| CN104668044A | 2015-06-03 | |||
| CN204564238U | 2015-08-19 | |||
| CN204523101U | 2015-08-05 | |||
| CN104707690A | 2015-06-17 | |||
| CN209302870U | 2019-08-27 | |||
| CN203140121U | 2013-08-21 | |||
| CN203155301U | 2013-08-28 | |||
| CN1191776A | 1998-09-02 | |||
| US4109871A | 1978-08-29 |
Attorney, Agent or Firm:
NANJING RUIZHIBO INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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