Showing papers on "Bed material load published in 1982"
Patent•
9 Aug 1982
TL;DR: In this article, an adjustable stop wall is provided leaving an adjustable passage towards the grate for the material, which includes a thrust limit detector to allow for a crushing or passing of any chunks, and hot dribblings may be pneumatically recycled onto the top of the material bed by means of increased air pressure.
Abstract: In a cooling process for material beds of bulk materials like cement clinker taking place on grate coolers increased bed depths and increased air velocities are provided by decelerating an upper layer of the material bed, which may be a fluidized bed of a fine fraction of the bulk material, with respect to the bottom layer or fixed bed of the material bed in order to obtain a material discharge of uniform temperature. For the purpose of such deceleration an adjustable stop wall is provided leaving an adjustable passage towards the grate for the material. The stop wall includes a thrust limit detector to allow for a crushing or passing of any chunks. Hot dribblings may be pneumatically recycled onto the top of the material bed by means of the increased air pressure.
11 citations
TL;DR: In this paper, the shape and dimensions of sand dunes in rivers are calculated by use of the measured bed shear stress distribution downstream a rearward-facing step, which makes it possible to explain the transition to plane bed.
Abstract: The shape and dimensions (length, height) of sand dunes in rivers are calculated by use of the measured bed shear stress distribution downstream a rearward-facing step. The transport of sediment is split up into bed load and suspended load, which makes it possible to explain the transition to plane bed. The model can predict flow-resistance curves in alluvial streams.