GB1399916A - Waste compactor - Google Patents

Abstract

1399916 Waste compactor INTERNATIONAL DYNETICS CORP 6 July 1972 [9 July 1971] 31740/72 Heading B8C A waste compactor comprises a tubular compaction chamber 20 of uniform cross-section along its length and having discharge and feed openings 16, 56 respectively at its leading and trailing ends, a shoot 28 communicating with the feed opening 56 for delivery of refuse thereto, a ram 34 longitudinally movable in said chamber between a first position to the rear of the feed opening and a second position forward of said feed opening to move refuse into, and along, the chamber forwardly to said discharge opening 16, the portion of the chamber located between said second position and said discharge opening having a plurality of elongated ribs 59 spaced from each other and each extending along the path of movement of the refuse and extending radially from the inner surface of said chamber toward the centre thereof by an amount sufficient to decrease the crosssectional area of said chamber and increase the surface area for contact by refuse between said second position and said discharge opening, whereby refuse is compacted on movement of the ram from the second position to said discharge opening. The ribs 54, which provide a compaction resistance to the flow of refuse along the chamber 54 and which are preferably of triangular rectangular shape, may be of rectangular, rounded, or other shape and they may be of spiral form and curved relative to the central axis of the chamber, the leading edges of the ribs being bevelled at 58. The chamber 20 comprises a cantilevered end of a tubular body 10 which has a feed section 22, which communicates with an inlet 28 of a shoot 30 having an electric eye 34, and which houses an hydraulic compaction unit 26 including a double-acting cylinder 36 and the ram 34. The latter carries a gate plate 42, which, in the forward position of the piston 34, blocks the inlet to the section 22 so that refuse from the shoot 30 collects upon it. When refuse on the gate plate 42 is sensed by the eye 34 the ram 34 is operated, each successive stroke of the latter pushing a quantity of refuse forward into the compaction chamber 20 so that the refuse is compacted axially, in disclike laminations, and is collected in a bag 60 which is shirred over the compaction chamber 20, is held by a pair of pivoted arms 64, and is secured by a chain 70. The latter is connected to a switch 72 connected to the control circuit of the ram 34. The bag 60 is adapted to be cut and tied at selected intervals on the discharge of refuse from the compactor. The degree of compaction of the refuse is dependent upon the length of the chamber 20 and the radial extent of the ribs 54.