Global Patent Index - EP 0917906 A1

EP 0917906 A1 19990526 - Process and apparatus for the dissolution of a solid product

Title (en)

Process and apparatus for the dissolution of a solid product

Title (de)

Verfahren und Vorrichtung zum Auflösen eines festen Produktes

Title (fr)

Procédé et dispositif de dissolution d'un produit solide

Publication

EP 0917906 A1 19990526 (FR)

Application

EP 97401506 A 19970627

Priority

EP 97401506 A 19970627

Abstract (en)

To dissolve a given volume of a solid detergent by stirring in a given volume of liquid, the solid detergent is passed to a vessel with an agitator and is weighed. It uses a closed screw conveyor for the transport to spread the detergent in the vessel but without being weighed. The set volume of liquid is passed into the vessel by a feed line which avoids the weighing unit. The weighed measure is less than a first level, and the product is delivered by the screw into the vessel until a second weight level is achieved, and the detergent delivery is stopped. The liquid is fed into the vessel until a third weight level is achieved, and the water feed is stopped. A system compares in real time the delivery of the detergent and/or the water for a given time span, and an alarm is generated if the real time breaches the nominal time. The screw conveyor unit is rotated at a speed of ≤ 30 rpm. An Independent claim is included for an apparatus with a vessel (1) mounted on to a weighing unit (2). The detergent is fed by a screw (3) in a closed cylinder (4), where its outlet is at the upper part of the vessel (1) without the conveyor being weighed (2). The detergent bag (5) is opened (7,8) towards the entry into the conveyor screw (3). Preferred Features: The conveyor screw (3) pitch is larger at the outlet than at the entry. The free edge of the conveyor screw (3) is notched. A feed line (14) opens into the vessel (1) without being weighed. The bottom of the detergent bag (5) has a shutter (7) which can be opened.

Abstract (fr)

Ce dispositif de dissolution d'un produit solide comprend : une cuve (1) montée pesante sur un dispositif de pesage (2), une vis convoyeuse (3) à fourreau (4) fermé dont l'extrémité de sortie débouche dans la partie haute de la cuve (1) et qui est montée sans peser sur le dispositif de pesage (2), et des moyens de maintien (7, 8) d'un sac (5) de manière que l'ouverture du sac (5) soit tournée vers le bas et communique avec l'extrémité d'entrée de la vie convoyeuse (3) <IMAGE>

IPC 1-7

B01F 15/04; B01F 3/12

IPC 8 full level

B01F 1/00 (2006.01); B01F 15/04 (2006.01); B01F 15/02 (2006.01)

CPC (source: EP US)

B01F 21/00 (2022.01 - EP); B01F 35/712 (2022.01 - EP US); B01F 35/714 (2022.01 - EP US); B01F 35/71775 (2022.01 - EP US); B01F 35/71805 (2022.01 - EP US); B01F 35/881 (2022.01 - EP); B01F 35/71 (2022.01 - EP)

Citation (search report)

Designated contracting state (EPC)

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

DOCDB simple family (publication)

EP 0917906 A1 19990526; EP 0917906 B1 20010829; AT E204786 T1 20010915; DE 69706425 D1 20011004; DE 69706425 T2 20020529; DK 0917906 T3 20011008; ES 2159821 T3 20011016; PT 917906 E 20011228

DOCDB simple family (application)

EP 97401506 A 19970627; AT 97401506 T 19970627; DE 69706425 T 19970627; DK 97401506 T 19970627; ES 97401506 T 19970627; PT 97401506 T 19970627