公开(公告)号：DE3202064A1

公开(公告)日：1983-08-04

申请号：DE3202064

申请日：1982-01-23

Applicant: BASF AG

Inventor： BOUQUET ROLF ,  WEBER GERHARD ,  KOOB KNUT DIPL CHEM DR

IPC: B07B1/06 ,  B07B1/46 ,  B07B1/55 ,  G01N15/02 ,  B01D35/28

Abstract: 1. A wet sieving apparatus for particle size analysis, comprising a plurality of superposed sieves (3) whose apertures sizes decrease progressively downards, a device (2) for supplying onto the sieves the pulverulent material which is suspended in a liquid and whose particle size distribution is to be determined with the aid of the sieves, and a collecting vessel (21), having overflow means (22), for the liquid which has run through the sieves, a distributor (5) being allocated to each sieve (3) for the purpose of supplying a conveying liquid onto it, wherein, in order to uniformly supply the sieves with the conveying liquid, the distributor is a tube (7) which is rotatably mounted at the middle on a distributor head (8), and is provided with a large mumber of radial holes (6) which are arranged in such a way that the thrust produced by the conveying liquid leaving the said holes can be utilized to rotate the said tube, and the distributors are connected to a controllable source for supplying the liquid under pressure.

公开(公告)号：DE10012153A1

公开(公告)日：2001-09-20

申请号：DE10012153

申请日：2000-03-13

Applicant: BASF AG

Inventor： REISENWEBER GERNOT ,  BOUQUET ROLF ,  HERZIG ULRICH ,  WERDAN ERWIN ,  FROEHLICH ERWIN

IPC: F04D13/00 ,  F04D13/14 ,  F04D13/12 ,  F04D13/06

Abstract: The flushing pumping circuit (2,17 for conveyor units (1) for reaction mixtures contains an integrated heat exchanger and at least two conveyor units, through which the reaction mixture can flow in two directions. The two conveyor units have an inner flushing circuit (21) acting in a cooling capacity and an outer flushing circuit (28), which, viewed in the outflow direction, issue behind a closure body (16) in the pressure conduit (17). In the inner flushing circuit are contained a throughflow meter (20) and at least one stirring section (32) for the reaction mixture. Likewise, the outer flushing circuit (28) contains a throughflow meter (27) and at least one stirring section (33). Also in the outer flushing circuit is a diaphragm (25) and a regulating valve for adjustment of the throughflow quantity.

公开(公告)号：DE3269759D1

公开(公告)日：1986-04-10

申请号：DE3269759

申请日：1982-12-23

Applicant: BASF AG

Inventor： BOUQUET ROLF ,  WEBER GERHARD ,  KOOB KNUT DR

IPC: B07B1/06 ,  B07B1/46 ,  B07B1/55 ,  G01N15/02

Abstract: 1. A wet sieving apparatus for particle size analysis, comprising a plurality of superposed sieves (3) whose apertures sizes decrease progressively downards, a device (2) for supplying onto the sieves the pulverulent material which is suspended in a liquid and whose particle size distribution is to be determined with the aid of the sieves, and a collecting vessel (21), having overflow means (22), for the liquid which has run through the sieves, a distributor (5) being allocated to each sieve (3) for the purpose of supplying a conveying liquid onto it, wherein, in order to uniformly supply the sieves with the conveying liquid, the distributor is a tube (7) which is rotatably mounted at the middle on a distributor head (8), and is provided with a large mumber of radial holes (6) which are arranged in such a way that the thrust produced by the conveying liquid leaving the said holes can be utilized to rotate the said tube, and the distributors are connected to a controllable source for supplying the liquid under pressure.