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Machine translation
1. (WO1981002855) PROCESS FOR THE SPRAYING OF A LIQUID
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/002855    International Application No.:    PCT/NL1981/000007
Publication Date: 15.10.1981 International Filing Date: 27.03.1981
IPC:
B01J 8/24 (2006.01), B05B 7/06 (2006.01), C07D 251/56 (2006.01)
Applicants:
Inventors:
Priority Data:
8001874 29.03.1980 NL
Title (EN) PROCESS FOR THE SPRAYING OF A LIQUID
(FR) PROCEDE DE PULVERISATION D"UN LIQUIDE
Abstract: front page image
(EN)Process for the spraying of a liquid by means of a gas into a fluidized bed, in which process said spraying is conducted by means of a two-phase spraying device, consisting of a liquid feed tube (21) fitted concentrically in a gas feed tube (26), in which device the end face of the liquid feed tube and the inner wall of the part of the gas feed tube extending beyond this end face are chamfered at an angle of 70-90 so that between this face and this wall there is a conical channel, and this inner wall connects, via a rounded area, to the inner wall of an outflow channel fitted coaxially in respect of the liquid feed tube, of which channel the inside diameter is 1 to 1.6 times the inside diameter of the outflow opening of the liquid feed tube and 2.5 to 10 times the curvature radius of the rounded area. To prevent erosion due to fluctuations in the process or to small changes in the design of the sprayer the invention is characterized in that the outflow channel (31), seen into the direction of flow, is conically narrowed.
(FR)Procede de pulverisation d"un liquide au moyen d"un gaz a L"interieur d"un lit fluidifie, dans lequel la pulverisation est executee au moyen d"un dispositif de pulverisation a deux phases, se composant d"un tuyau (21) d"alimentation en liquide dispose concentriquement dans un tuyau (26) d"alimentation en gaz, la face d"extremite du tuyau d"alimentation en liquide et la paroi interieure de la partie du tuyau d"alimentation en gaz s"etendant au-dela de la face d"extremite chanfreinee a un angle de 70-90 de maniere qu"entre la paroi et la face soit menage un canal conique, et que cette paroi interieure soit connectee, via une zone arrondie, avec la paroi interieure d"un canal d"ecoulement vers l"exterieur montee coaxialement a par rapport au tuyau d"alimentation en liquide, le diametre interieur du canal etant egal a 1,6 fois le diametre interieur de l"ouverture d"ecoulement vers l"exterieur du tuyau d"alimentation en liquide et 2,5 a 10 fois le rayon de courbure de la zone arrondie. Afin d"empecher l"erosion due aux fluctuations dans le procede ou aux changements mineurs dans la forme du dispositif de pulverisation, la presente invention se caracterise en ce que le canal (31) d"ecoulement vers l"exterieur, vu dans la direction de l"ecoulement, est retreci de facon conique.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)