公开(公告)号：DE3130304A1

公开(公告)日：1983-02-17

申请号：DE3130304

申请日：1981-07-31

Applicant: BASF AG

Inventor： JAGGARD JAMES F R DIPL CHEM DR ,  BEST WALTER DIPL CHEM DR ,  KLAERNER PETER DIPL CHEM DR ,  BLEI PETER DIPL ING

IPC: C08F6/00 ,  C08F6/28 ,  C08F10/02 ,  C08F10/14

公开(公告)号：DE4423143A1

公开(公告)日：1996-01-04

申请号：DE4423143

申请日：1994-07-01

Applicant: BASF AG

Inventor： BROECKEL ULRICH DR ,  MEYER JOACHIM DR ,  ROEMER RAINER DR ,  SCHUBERT ERICH DIPL ING ,  BLEI PETER DIPL ING ,  FESLER JUERGEN DIPL ING ,  GRIEBEL AXEL ,  WITT REINER

IPC: C02F11/12 ,  C02F11/14 ,  B01F9/02 ,  B01F15/02 ,  B01F15/04 ,  B01D37/00

Abstract: Filtration and dewatering process is as follows. Sludge (1) is opt. mixed with additives such as coal or ash (2) in a contact device (3). The sludge and additives (1,2) are sent by a pump (4) along a line (5) to a cylindrical stirrer (7) with a rotating cylinders (7a,7b,7c) along the length of the cylinder, where the cylinders have changing dia. (pref. with the dia. changing in steps). A flocculating agent such as an organic polymer is supplied at an inlet (6). Rotational energy input sets up shear force gradients, promoting intensive mixing in the first section (7a), flock formation in the second (7b), and mechanical stabilisation of the flocks, in the third (7c). The flocculated mixt. is sent by a line (8) to the filter press (9). Also claimed is a cylinder stirrer as described above for stirring, mixing, agglomerating or flocculating two or more components, such as sludge.

公开(公告)号：DE3122679A1

公开(公告)日：1982-12-23

申请号：DE3122679

申请日：1981-06-06

Applicant: BASF AG

Inventor： JAGGARD JAMES F R DR DIPL CHEM ,  BEST WALTER DR DIPL CHEM ,  KLAERNER PETER DR DIPL CHEM ,  BLEI PETER DIPL ING

IPC: C08F6/00 ,  C08F6/26 ,  C08F10/06 ,  C08J3/00 ,  C08L23/10