Gravity Flow Of Particles Type Patents (Class 210/268)
  • Patent number: 4042500
    Abstract: Disclosed are improvements in and relating to a fluidized-bed type multistage solid-liquid contact apparatus which comprises a contact column incorporating therein a multiplicity of a spaced and horizontal support plates each carrying thereon a fluidized bed of solid particles and having a downcomer for communicating between the upper and lower sides of the plate, a storage tank for the liquid to be treated by contact with said layer of fluidized solid particles in said contact column, a storage tank for receiving the treated liquid and a storage tank for solid particles for use in said layers.
    Type: Grant
    Filed: May 28, 1975
    Date of Patent: August 16, 1977
    Assignee: Kurita Water Industries Limited
    Inventors: Yasunao Misaka, Ikuo Tanaka, Hirro Okada, Chuichi Goto, Moriyuki Hirota, Masaaki Uesugi, Mitsuru Tsuchiya
  • Patent number: 4033874
    Abstract: A process for the separation of solids from liquids in a closed pressure system, wherein liquid is passed through a treatment column containing purifying material. A portion of the purifying material is removed in a timed intermittent quasi-continuous manner and cleaned in a rinsing column. The cleaned purifying material is then fed back to the treatment column by backflushing and the use of a liquid transport medium.
    Type: Grant
    Filed: April 22, 1975
    Date of Patent: July 5, 1977
    Assignee: Hager & Elsaesser
    Inventors: Kurt Marquardt, Reinhard Buchholz
  • Patent number: 4005016
    Abstract: This disclosure pertains to an apparatus within a container wherein solid particles of the type that form a sediment in a liquid, are withdrawn from a liquid-filled processing chamber at the upper side of a funnel-shaped plate into a liquid-filled collecting chamber below the plate. In one embodiment, the funnel-shaped plate includes a central discharge nozzle that forms an annular discharge gap by extending downwardly within the side walls of a bell-shaped chamber that is inverted and contains a mushroom-shaped distributor supported above its bottom wall by a liquid supply pipe. The top surface of the mushroom-shaped distributor has a conical shape with the apex extending upwardly to the terminal end of the discharge nozzle.
    Type: Grant
    Filed: July 7, 1975
    Date of Patent: January 25, 1977
    Assignee: Dr. C. Otto & Comp. G.m.b.H.
    Inventors: Egon Haese, Hans Moll