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Title:
POWDER AND GRANULAR MATERIAL MIXING DEVICE
Document Type and Number:
Japanese Patent JPH0615155
Kind Code:
A
Abstract:

PURPOSE: To improve the performance of mixing powder and granular materials by forming the walls of a vertical type storage tank from the neighborhood of a supply port to the neighborhood of a discharge port of double structures consisting of an outside wall and an inside wall, forming the spacing between the outside wall and the inside wall as a withdrawal passage for the powder and granular materials and providing the withdrawal passage with withdrawal ports for the powder and granular materials at plural prescribed height positions.

CONSTITUTION: An inner peripheral wall 38 is provided from near the neighborhood of the supply port 24 to the neighborhood of the discharge port 26 in addition to the withdrawal pipe 28 provided in the central vertical direction of the vertical type storage tank along the wall inside surface of the cylindrical silo 22. The withdrawal ports 48, 50, 52, 54 of the powder and granular materials 46 are formed around the positions of the plural prescribed height positions of the inner peripheral wall 38. As a result, the withdrawal passage 56 of the powder and granular materials 46 is formed between the wall of a cylindrical silo 22 and the inner peripheral wall 38. The powder and granular materials 46 on the wall side of the cylindrical silo 22 are withdrawn via the withdrawal passage 56 to the discharge port 26 and the powder and granular materials 46 in the lower part of the cylindrical silo 22 are mixed at this time. Even the powder and granular materials on the wall side are withdrawn in a short time and the powder and granular materials are evenly withdrawn from the respective areas.


Inventors:
HIGUCHI SHIGEO
SUWA HIDEYUKI
YOSHINAGA MASAYUKI
Application Number:
JP20034192A
Publication Date:
January 25, 1994
Filing Date:
July 03, 1992
Export Citation:
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Assignee:
HITACHI PLANT ENG & CONSTR CO
International Classes:
B01F3/18; B01F5/24; (IPC1-7): B01F5/24; B01F3/18