Arrangement for withdrawing material from a silo

US4099632A · kind A · utility

Assignee

• C. J. Wennberg AB · SE

Inventors

• Stig Ove Berg · Huskvarna, SE
• Rolf Persson · Karlskoga, SE

Key dates

• Filing date: Jul 13, 1976
• Grant date: Jul 11, 1978
• Expiry date: Jul 13, 1996

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01F25/2018
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

Arrangement for withdrawing material from the bottom portion of a silo having an inclined silo bottom and a discharge funnel at the lowest point of the silo bottom, comprising a conveying screw which is disposed above the inclined silo bottom and which on the one hand is rotatable about its longitudinal axis and on the other hand moves along the silo bottom and which conveys the material in the direction towards a discharge funnel at the lowest point of the silo bottom, and wherein the drive of the screw is disposed outside the silo wall and the bearing of the screw is disposed at the opposite end outside the discharge funnel and on the latter, both the drive and the discharge funnel being rotatably mounted to permit a sweeping movement of the screw over the silo bottom.