GB1416165A - Dispensing device for a cohesive material transportation system - Google Patents

Abstract

1416165 Pneumatic conveyers DUNLOP Ltd 20 March 1973 [5 Feb 1972] 5433/72 Heading B8A A dispensing device for a cohesive material transportation system comprises a hopper 2 which is filled with material through an inlet 45, the hopper 2 being fixedly attached to a casing 13 in which is rotatably mounted a dispensing chamber support frame 6 which incorporates six cylindrical dispensing chambers 7 (only two of which are shown) which are each open at the top and bottom, the hopper 2 including a shelf 4 which extends around the majority of the internal periphery thereof and below which shelf the hopper is divided into five circumferentially spaced areas (22-26) by means of partitions (27-32), Fig. 2 (not shown), the said areas being capable of registering with the open tops of five of the dispensing chambers 7, the arrangement of the shelf 4 being such that it shields the material flowing from the areas (22-26) into the chambers 7 from the weight of the material above the shelf 4 thereby preventing compacting or bridging of the material. The frame 6 is rotatable about the axis of a vertical driven shaft 12 so that each chamber 7 in turn is brought to a position in which it registers with a pipe 17 which is connectible to a cohesive material transporation system, an air pressure chamber 18 which is pressurized via an air line 19 being located in the hopper 2 above the pipe 17 so that the material in that particular chamber is blown into the pipe 17. The shaft 12 is driven by an electric motor 8 and an agitator 3 having radially projecting arms 20 is connected to the shaft 12. The motor 8 and pipe 17 are located in a stationary casing 14 and in order to prevent leakage of material between the bottom surface 46 of the frame 6 and the top surface 43 of the casing 14 a machined disc (50, 51) is attached to each of said surfaces respectively, Figs. 4, 5 (not shown).