公开(公告)号：DE2712414A1

公开(公告)日：1978-09-28

申请号：DE2712414

申请日：1977-03-22

Applicant: BASF AG

Inventor： DAUCHER HANS DIPL ING DR ,  DRESSEL MANFRED DIPL ING ,  HESS KLAUS DIPL ING DR ,  ENGELHARDT HUBERT DIPL ING

IPC: B01D21/34 ,  B01D29/00 ,  B01D29/01 ,  B01D29/05 ,  B01D33/073 ,  B01D37/00 ,  B01D29/04 ,  C02C1/22

Abstract: A process and apparatus for removing suspended matter from suspensions by filtering through foams, in which the suspended matter retained in the foam (polyurethane foam produced by foaming with water vapor being preferred) is substantially flushed out by expressing the liquid held in the foam, and is removed as a concentrate. This for the the first time permits the removal of suspended matter from continuously flowing suspensions without the flow of the suspensions having to be interrupted in order to clean the filtering means.

公开(公告)号：DE3049628A1

公开(公告)日：1982-07-22

申请号：DE3049628

申请日：1980-12-31

Applicant: BASF AG

Inventor： DRESSEL MANFRED DIPL ING ,  GREVEN JOHANNES ,  JECK ARNULF DIPL ING ,  MAGIN RUDOLF DIPL ING DR ,  NICK GUENTHER ,  SCHAFFARCZYK PAUL ,  WEISS GUENTHER DIPL-CHEM DR

IPC: G01M13/00 ,  G01N19/08 ,  G07C3/08 ,  F04B39/00 ,  F16C3/06

Abstract: For the purpose of monitoring the formation and propagation of cracks in machine parts and components, especially in the rotating shafts of prime movers and mechanical equipment, at least one hole is drilled in the uncracked section of the component, this drilled hole intersecting the plane of the crack which is to be expected and being filled with a gas or a liquid, the gas or liquid being adjusted to a pressure above the ambient pressure, and the drilled hole being provided with a closure with respect to the environment and being connected, via a line, to an instrument for indicating a fall in the pressure of the medium present in the drilled hole.