EP 0879651 A3 20000816 - Method and assembly for preventing sticking of fine-graded, moist material in the handling equipment of such material

Title (en)

Method and assembly for preventing sticking of fine-graded, moist material in the handling equipment of such material

Title (de)

Verfahren und Anordnung zum Verhindern des Festklebens feinkörniges, feuchtes Material in der Handhabungseinrichtung für solches Material

Title (fr)

Procédé et ensemble pour prévenir le collage d'un matériau fin, humide dans l'équipement de manutention d'un tel matériau

Publication

EP 0879651 A3 20000816 (EN)

Application

EP 98660043 A 19980514

Priority

FI 972132 A 19970519

Abstract (en)

[origin: EP0879651A2] The present invention relates to a method and assembly for preventing sticking of fine-graded, moist material such as clay or sludge to screens, shovels and other units of earth handling equipment. The handling of moist and fine-graded materials is often greatly hampered by sticking of such materials to the handling equipment. Pure clay in particular sticks extremely tenaciously on all surfaces and, having a soft and easily deformable consistency, tends to adhere to a surface rather than to allow itself to be detached from the surface under an external force. This leads to plugging of screening and blending equipment and accumulation of clay on shovels and other equipment used for handling the clay. Most sludges also act in a similar manner. The invention is based on heating at least a portion of the equipment elements to be in contact with the material being treated to a temperature higher than the boiling point of water.

IPC 1-7

B08B 17/00

IPC 8 full level

B07B 1/56 (2006.01); B08B 17/02 (2006.01)

CPC (source: EP)

B07B 1/56 (2013.01); B08B 17/02 (2013.01)

Citation (search report)

[XY] FR 1010522 A 19520612
[YA] DE 870935 C 19530319 - WESTFALIA DINNENDAHL GROEPPEL
[YA] BE 528159 A
[A] US 5032255 A 19910716 - JAUNCEY ALAN R [GB]
[A] US 4623197 A 19861118 - STLUKA EUGENE F [US]
[A] GB 969218 A 19640909 - LECA WORLD LTD
[A] PATENT ABSTRACTS OF JAPAN vol. 016, no. 133 (C - 0925) 6 April 1992 (1992-04-06)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

EP 0879651 A2 19981125; EP 0879651 A3 20000816; FI 972132 A0 19970519; FI 972132 A 19981120

DOCDB simple family (application)

EP 98660043 A 19980514; FI 972132 A 19970519