GB462937A - Improvements in or relating to gas producers - Google Patents

Abstract

462,937. Gas producers. KRUPP AKT.-GES., F. May 1, 1936, No. 12390. Convention date, May 4, 1935. Addition to 462,933. [Class 55 (i)] The producer described in the parent Specification wherein the air-steam supply is introduced through a central pipe and the producer gases withdrawn through separate outlets in the periphery of the shaft, both being in the neighbourhood of the gasefication zone which assumes the form of a shallow cone, or as in a modification of a disc, the air supply and gas withdrawal being completely reversible, is modified by replacing the openings in the periphery of the shaft by an annular gap 4. Steam from a pipe 24 is supplied to an annular channel 8 surrounding the base of the shaft and issues through an adjustable aperture 7 where it mixes with the air supply through the gap 4. Both the gaps 4 and 7 are adjustable in width by movement of the spring plate 12 defining the aperture 7 and the independent slagcollecting chamber 6 relatively to each other, the spring plate and chamber 6 being interconnected by tension springs 13. In a modified form of the producer, the annular gap is replaced by a number of spaced openings surrounded by an air supply or gas withdrawal annular chamber of spiral form. In this modification, the perforated hood 16 of the central pipe 15 may be water or air-cooled; the water used may be admitted to the gasefication zone. When the air-steam mixture is supplied to this central pipe and the producer gases withdrawn at the periphery of the shaft, the air-steam mixture is controlled by a throttle valve in the pipe. Specification 218,804, [Class 55 (i)], is referred to.