PLURAL CONDUIT REPLACEABLE OUTER SUPPORT STRUCTURE FOR RADIAL FLOW SYSTEM

摘要

Replaceable outer support structure for a particulate material bed in a radial flow system comprises a plurality of hollow conduits, at least some o f which have a generally trapezoidal cross-section. The conduits are arranged in a ring around the inside wall surface of the vessel and have flat or slightl y concave inner wall surfaces formed of segments of vertically extending scree n members which have slots which provide uniform flow through the uniform thickness particulate bed which they help define. The side walls of the conduits extend generally radially outwardly to engage the inner surface of the outside wall of the vessel and at least those of them which have a trapezoid al cross-section have their side walls formed at an included angle which is les s than if they extended radially relative to the axis of the vessel.