EP 0451046 A1 19911009 - Pulp dispersion lance.
Title (en)
Pulp dispersion lance.
Title (de)
Lanze zur Pulpendispersion.
Title (fr)
Lance de dispersion de pulpe.
Publication
Application
Priority
FR 9004200 A 19900402
Abstract (en)
[origin: US5188296A] The lance of the invention includes a sleeve (2A) which conveys air under pressure around a central tube (1) which conveys the pulp that is to be sprayed and dispersed. The wall of this tube is pierced by separation holes (5) to inject a gaseous lining around the pulp, by break-up holes (3) for breaking up said pulp, and by rotation-imparting holes (4) in the vicinity of the outlet (1B) from the lance. The invention is particularly applicable to feeding a boiler with coal powder.
Abstract (fr)
La lance selon l'invention comporte un manchon (2A) qui conduit de l'air sous pression autour d'un tube central (1) qui conduit la pulpe qui doit être projetée et dispersée.La paroi de ce tube est percée de trous de décollement (5) pour injecter une gaine gazeuse autour de la pulpe, de trous de désagrégation (3) pour désagréger cette pulpe et de trous de mise en rotation (4) au voisinage de la sortie (1B) de la lance.L'invention s'applique notamment à l'alimentation d'une chaudière en poudre de charbon.
IPC 1-7
IPC 8 full level
B05B 7/04 (2006.01); B05B 7/06 (2006.01); B05B 7/10 (2006.01); F23C 10/22 (2006.01)
CPC (source: EP US)
B05B 7/0458 (2013.01 - EP US); B05B 7/066 (2013.01 - EP US); B05B 7/10 (2013.01 - EP US); F23C 10/22 (2013.01 - EP US)
Citation (search report)
- [X] US 3897007 A 19750729 - ROY JOSEPH G
- [X] PATENT ABSTRACTS OF JAPAN, vol. 10, no. 257, (M-513)[2313], 3 septembre 1986; & JP-A-61 083 817 (BABCOCK HITACHI K.K.) 28-04-1986
Designated contracting state (EPC)
DE ES FR GB
DOCDB simple family (publication)
EP 0451046 A1 19911009; EP 0451046 B1 19931013; DE 69100493 D1 19931118; DE 69100493 T2 19940217; ES 2046867 T3 19940201; FI 911566 A0 19910402; FI 911566 A 19911003; FI 98406 B 19970228; FI 98406 C 19970610; FR 2660215 A1 19911004; FR 2660215 B1 19950721; US 5188296 A 19930223
DOCDB simple family (application)
EP 91400891 A 19910402; DE 69100493 T 19910402; ES 91400891 T 19910402; FI 911566 A 19910402; FR 9004200 A 19900402; US 67949591 A 19910402