Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (WO1997019307) A PROCESS AND AN APPARATUS FOR PRODUCING A POWDERED PRODUCT BY SPIN FLASH DRYING
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/019307 International Application No.: PCT/DK1996/000480
Publication Date: 29.05.1997 International Filing Date: 21.11.1996
Chapter 2 Demand Filed: 05.05.1997
IPC:
F26B 3/092 (2006.01) ,F26B 17/10 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
26
DRYING
B
DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
3
Drying solid materials or objects by processes involving the application of heat
02
by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
06
the gas or vapour flowing through the materials or objects to be dried
08
so as to loosen them, e.g. to form a fluidised bed
092
agitating the fluidised bed, e.g. by vibrating or pulsating
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
26
DRYING
B
DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
17
Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
10
with movement performed by fluid currents, e.g. issuing from a nozzle
Applicants:
APV ANHYDRO A/S [DK/DK]; Østmarken 7 DK-2860 Søborg, DK (AllExceptUS)
GETLER, Jens [DK/DK]; DK (UsOnly)
Inventors:
GETLER, Jens; DK
Agent:
HEIDEN & HØIBERG A/S; Nørre Farimagsgade 37 DK-1364 Copenhagen K, DK
Priority Data:
1308/9521.11.1995DK
Title (EN) A PROCESS AND AN APPARATUS FOR PRODUCING A POWDERED PRODUCT BY SPIN FLASH DRYING
(FR) PROCEDE ET DISPOSITIF POUR L'ELABORATION D'UN PRODUIT PULVERULENT DANS UN FOUR ROTATIF A SECHAGE INSTANTANE
Abstract:
(EN) A process and an apparatus for drying of a material in the form of a paste or a filter cake in a spin flash dryer. Particles are separated by a classifier (6) in the chamber (1) in such a way that oversize fraction is withheld in the chamber (1) and the desired fraction is removed (3, 9). A possible undesired undersize fraction is strained off and recycled (4, 10, 11) externally back to the dryer chamber (1). The spent drying gas is recycled to the dryer chamber (1). In either, the energy in the spent drying gas may be made use of in a heat exchanger and there is no or only little emission to the environment. Products preferably dried according to the invention are fruit and beet pulps, destillers residues, pesticides, pigments, dyes, ceramics, active coal, sludge and zeolites.
(FR) L'invention concerne un procédé et un dispositif pour le séchage de matériau sous la forme d'un pâte ou d'un gâteau de filtre dans un four rotatif à séchage instantané. Les particules sont séparées par une classificateur (6) dans la chambre (1), de manière à retenir dans ladite chambre (1) les déclassés supérieurs et à extraire les parties désirées (3, 9). Les éventuels déclassés inférieurs non désirés sont tamisés et recyclés (4, 10, 11) en externe vers la chambre (1) du four. Le gaz de séchage usé est recyclé vers la chambre (1) du four. Dans les deux cas, l'énergie propre au gaz de séchage usé peut être absorbée dans un échangeur de chaleur, et les émissions dans l'environnement sont inexistantes ou seulement faibles. De préférence, on utilise le procédé et le dispositif selon l'invention pour le séchage des produits suivants: pulpes de fruits et de betteraves, résidus de distillation, pesticides, pigments, colorants, céramiques, charbon activé, boues et zéolithes.
Designated States: US
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0862718US6085440DE000069603288DK0862718