Showing papers on "Material flow published in 1976"

Apparatus for cooling particulate material

Abstract: Apparatus for cooling calcined or sintered particulate material discharged from a rotary kiln or other pyro-processing system. The apparatus includes an upright shell adapted to contain the material to be cooled, a mixing hopper arranged within the upper portion of the shell for mixing together particles of the material of different size and air distributing means arranged within the lower portion of the shell for releasing cooling air into the material. The apparatus is configured so that the cooling air moves counter to the direction of material flow.

Fine grain material fineness measurement method - continuously tests material sample stream branched off from main flow

Abstract: The flow of material is uniformly superposed on a constant gas flow; to give a constant weight of material for a unit volume of gas. The gas material mixture is passed before a light source and the light intensity change due to the material in suspension is the measure for the material fineness. The gas material mixture passes through a test section and then material is deposited from the gas stream and is returned to the main material flow at a point downstream from the branching off point; a pneumatic pipeline is provided for the gas-material mixture, with transparent walls in the test section.

Uniformly softening and blending thermoplastics - passing through feeding, mixing and discharging zones each with separately regulated operation

Abstract: Plant for softening, fusing/blending thermoplastics etc. has an adjustable high speed mixer frree from significant propelling effect, a feeder, a separately regulated feed pump, and an independently adjustable discharging device (e.g. screw worm) to produce a suitable material flow pressure, an appropriately turbulent peripheral movement being formed in the mixer by its speed control so as to produce the required internal frictional heat for fusion. The dimensions of the feed flow channels in the different zones are selected and relate to each other so that, with max. throughput from the feed and discharge zones, the resistance to flow/pressure produce a material pressure which is less than that which would be necessary for the required frictional heat if the mixer rotated at low speed. Each zone is controlled as required, uniform flow for any throughput rate i.e. no uncontrolled or variable pressures, air and gases can escape, hence uniform end prod..

Nuclear fuel assemblies

Abstract: PURPOSE:Nuclear fuel assmblies, that realiezes simple construction designed not generating temperature difference within fuel aggregate by approximetely corresponding cooling material flow distributior to heating capacity distribution of fuel assemblies.