Title:
FINE PARTICLE RECOVERY HOPPER FOR CRUSHER
Document Type and Number:
Japanese Patent JP2022139700
Kind Code:
A
Abstract:
To provide a fine particle recovery hopper for a crusher capable of efficiently recovering only fine particles that are generated between a crusher and a downstream facility.SOLUTION: A fine particle recovery hopper 10 for a crusher comprises a cylindrical main body 12 having a top surface opening between a discharge hole of a crusher 1 and a lower downstream facility 2, the top surface opening being provided on the discharge hole side, and a lower surface opening on the downstream facility side, where ballasts crushed by the crusher pass through the cylindrical main body 12. The cylindrical main body comprises: a fine particle recovery path 14 which is formed spirally from the lower surface opening to the top surface opening on an inner wall thereof. The fine particle recovery path comprises: a suction hole 16 for sucking fine particles generated in the crushing step on a side surface at an internal center side; and a falling hole 18 for returning coarse powder with a diameter greater than that of the fine particles recovered from the suction hole back to the inside of the cylindrical main body, the falling hole being provided in the lower surface. Fine particles are sucked from the suction hole with the fine particle recovery path being under a negative pressure and are subjected to centrifugal separation, and the coarse powder returned to the cylindrical main body from the falling hole is discharged to the downstream facility with ballasts.SELECTED DRAWING: Figure 1
More Like This:
Inventors:
SHIRAO RYOJI
MUTA MASAHIDE
MUTA MASAHIDE
Application Number:
JP2021040198A
Publication Date:
September 26, 2022
Filing Date:
March 12, 2021
Export Citation:
Assignee:
UBE MACHINERY CORP LTD
International Classes:
B02C23/00
Attorney, Agent or Firm:
Yuichi Murakami
Hiroshi Seki
Hiroshi Seki