GB1286948A - Apparatus for continuous dehydration - Google Patents

Abstract

1286948 Rotary disc dehydration press R YORITOMI 18 Nov 1970 [6 Dec 1969] 54851/70 Heading B1D In a dehydration press wherein material passes round the gap between the inner, frustoconical surfaces of two rotating perforate discs 8, 9 mounted on respective shafts 5, 6, the inner ends of the shafts are connected by a pin 7 vertically oriented in a central aperture 4 in plate 2, which is connected to the outer, annular, fixed casing 1 (Fig. 3, not shown), the outer ends of shafts 5, 6 are restrained against vertical movement by engaging in guide slots 23, 24 and extended by L-shaped levers 30, 31 whose ends are adjustable relative to lug 39 on casing 1 to vary the angular inclination of shafts 5, 6 and hence the ratio of maximum to minimum width of the pressing gap. This construction reduces the forces during pressing to outward forces exerted by levers 30, 31 on adjusting nuts 41, 42 and a shearing force on pin 7, but not net force is transmited from the pin 7 to plate 2 and casing 1, and these parts need not be unduly strong. Slots 23, 24 are formed in extensions of the frame which supports casing 1. Figs. 5 to 7 (not shown) illustrate modifications in which the ends of levers 30, 31 are resiliently engaged by springs or hydraulic rams to allow movement thereof to compensate for material feed rate variations during pressing. Discs 8, 9 are rotated by chain drives to sprockets 18, 19, and supported on shafts 5, 6 by journal bearings 12, 13 and thrust bearings 14, 15.