GB907006A - Silos with means for continuous filling and emptying - Google Patents

Abstract

A silo through which alkali cellulose may be continuously passed from top to bottom for <PICT:0907006/IV(a)/1> <PICT:0907006/IV(a)/2> <PICT:0907006/IV(a)/3> <PICT:0907006/IV(a)/4> the continuous ripening of the alkali cellulose comprises charging means characterized by a distributer from which the alkali cellulose is dispensed in the form of a falling stream reciprocating horizontally across the silo and discharging means incorporating provision for weighing the emerging material. The distributer consists of a wheeled carriage 5 on which is mounted a driven endless chain 48, Fig. 10, carrying a rod 50 which projects laterally from the chain and is confined to movement in a fixed vertical guideway 51 so that on rotation of the chain the carriage reciprocates across the top of the silo. The carriage supports an endless belt 2 which receives the material from a hopper 1 and discharges it on to a pair of laterally feeding screws 3, Fig. 2, also supported by the carriage so that the material from the belt 2 is spread out to fall in a sheet which extends over the width of the silo and moves back and forth along its length. The material eventually emerges between rollers 6 which, as shown in Fig. 5, have longitudinal ribs 16 for co-operation with fixed scrapers 15, each roller being driven in the opposite direction to its neighbours. From the rollers the material falls on to a conveyer belt 7 whose upper run forms the base of the weighing receptacle 8 of a balance which is used to control drive means for the rollers 6 and belt 7. Specifications 672,302, 786,808 and 848,772 are referred to.