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公开(公告)号：EP1740298B1
公开(公告)日：2008-11-19
申请号：EP05715517.8
申请日：2005-02-24
申请人： UREA CASALE S.A.
发明人： BEDETTI, Gianfranco
摘要： A fluid bed granulation process of a predetermined substance comprises the steps of: forming, through a fluidification. air flow of predetermined flow rate, a fluid bed of granules of said substance to be granulated fed to it in the form of seeds, - feeding said fluid bed with a continuous flow of a growth substance (or liquid).
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公开(公告)号：EP2109496A1
公开(公告)日：2009-10-21
申请号：EP07870210.7
申请日：2007-12-21
申请人： Urea Casale S.A.
发明人： BEDETTI, Gianfranco
IPC分类号： B01J2/16
CPC分类号： B01J2/16
摘要： Fluid bed granulation process comprising the steps of: - forming a fluid bed of seeds (Sl) of a chosen substance, - feeding said fluid bed with a continuous fluid flow (L) comprising a growth liquid, - inducing and maintaining a continuous vortex (V) in said fluid bed, the vortex (V) having a substantially horizontal axis, characterized in that said fluid flow (L) is fed into predetermined first zones (Zl) of said fluid bed, said first zones (Zl) being alternated to second zones (Z2) of said fluid bed in which said fluid flow (L) is not fed.
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公开(公告)号：EP1635938A1
公开(公告)日：2006-03-22
申请号：EP04733771.2
申请日：2004-05-19
申请人： UREA CASALE S.A.
发明人： BEDETTI, Gianfranco
CPC分类号： B01J2/16
摘要： Fluid bed granulation process comprising the step of cooling the granules in a cooling fluid bed (F2). At least part of the fluidizing air coming out from said cooling fluid bed (F2) is fed into the granulation fluid bed (F1).
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公开(公告)号：EP1377385B1
公开(公告)日：2005-06-29
申请号：EP02742891.1
申请日：2002-04-12
申请人： UREA CASALE S.A.
发明人： BEDETTI, Gianfranco
CPC分类号： B01J8/245 , B01J2/16 , B01J8/1827 , B01J19/26 , B01J2219/00164 , B05B7/0458 , B05B7/0475 , B05B7/10
摘要： A nozzle for distributor devices of granule's growth liquid substance in fluid bed granulators, is distinguished by the fact that it comprises a duct (2) having, at one end, at least one inlet opening (3) for a flow (F) of a chosen granule's growth liquid substance, and, at the other end, a supply opening (5) for such substance, a gaseous flow distributor (6) externally associated to the duct (2) in predetermined spaced relationship from the supply opening (5) and in fluid communication with the inside of the duct (2), and emulsifying means (8) associated to the inlet opening (3) and the distributor (6) to obtain, inside the duct (2), an emulsion of the gaseous flow in the growth liquid substance.
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公开(公告)号：EP1740298A2
公开(公告)日：2007-01-10
申请号：EP05715517.8
申请日：2005-02-24
申请人： UREA CASALE S.A.
发明人： BEDETTI, Gianfranco
摘要： A fluid bed granulation process of a predetermined substance comprises the steps of: forming, through a fluidification. air flow of predetermined flow rate, a fluid bed of granules of said substance to be granulated fed to it in the form of seeds, - feeding said fluid bed with a continuous flow of a growth substance (or liquid).
摘要翻译： 预定物质的流化床造粒方法包括以下步骤：通过流化形成。 预定流量的空气流，以颗粒形式供入其中的所述待粒化物质颗粒的流化床， - 以连续流动的生长物质（或液体）供应所述流化床。
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公开(公告)号：EP1635940B1
公开(公告)日：2006-12-20
申请号：EP04739256.8
申请日：2004-05-19
申请人： UREA CASALE S.A.
发明人： BEDETTI, Gianfranco
CPC分类号： B01J2/16
摘要： A process for obtaining finished granules of a predetermined substance in a granulation fluid bed (F1) of the so-called vertical growth type, the bed being formed and maintained by a respective flow of fluidification air, comprises a transfer phase by falling of the finished granules in a pressurized space below the granulation bed and a recovery phase of the finished granules from the pressurized space.
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公开(公告)号：EP1377386B1
公开(公告)日：2005-11-23
申请号：EP02766627.0
申请日：2002-04-12
申请人： UREA CASALE S.A.
发明人： BEDETTI, Gianfranco
CPC分类号： B01J8/245 , B01J2/16 , B01J8/1827 , B01J19/26 , B01J2219/00164 , B05B7/0458 , B05B7/0475 , B05B7/10
摘要： A nozzle for distributor devices of granule's growth liquid substance in fluid bed granulators, is distinguished by the fact that it comprises a first duct (2), with substantially rectilinear axis (A) and with a predetermined diameter, which duct has an end portion (3) including a supply opening (4) and made of at least twosubsequent segments, a first cone-shaped segment (5) converging on the axis (A) and a further cone-shaped segment (7) diverging from the axis (A) and ending in the supply opening (4), a second duct (8) extending co-axially inside the first duct (2), with which it forms an annular space (9), the second duct (8) having a supply end (10) extended inside the first cone-shaped segment (5) of the first duct (2).
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公开(公告)号：EP1412069A2
公开(公告)日：2004-04-28
申请号：EP02727445.5
申请日：2002-03-20
申请人： UREA CASALE S.A.
发明人： BEDETTI, Gianfranco
IPC分类号： B01J2/16
CPC分类号： B01J2/16 , B01J8/1818 , B01J2219/1923
摘要： In order to produce granules granulometrically polidispersed in a very little range, a fluid bed granulation process of the type comprising the steps of preparing a fluid bed of seeds (S1) of the substance to be granulated, having a free surface (P) substantially horizontal; and feeding a continuous flow (L) of a fluid comprising a growth liquid, provides in the fluid bed for a continuous vortex (V) with a substantially horizontal axis, in which an upper zone (Z1) of seeds wetting and evaporation of possible solvent contained in the flow (L) and a lower zone (Z2) of solidification/consolidation of the growth liquid are identified.
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公开(公告)号：EP2349583A1
公开(公告)日：2011-08-03
申请号：EP09820270.8
申请日：2009-09-08
申请人： UREA CASALE S.A.
发明人： BEDETTI, Gianfranco
CPC分类号： B01J2/16 , B05B1/00 , B05B7/0433 , B05B7/0475
摘要： A method for atomizing a liquid (L) in a spraying nozzle (1), wherein a gaseous phase (G) and said liquid (L) are fed to a mixing chamber (30) inside said nozzle (1), obtaining an emulsion of the gas in the liquid, the emulsion being under pressure inside said chamber and formed by gas bubbles enveloped by the liquid in a film state; the speed of the gaseous phase at the inlet of the mixing chamber is around the speed of sound or greater, and the atomized liquid is obtained by an expansion of said emulsion at the outlet of said chamber. A suitable nozzle (1) is also disclosed, comprising a mixing chamber (30) and a distribution device (D) adapted to provide appropriate gas and liquid feed to form said emulsion.
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公开(公告)号：EP1412069B1
公开(公告)日：2006-12-06
申请号：EP02727445.5
申请日：2002-03-20
申请人： UREA CASALE S.A.
发明人： BEDETTI, Gianfranco
IPC分类号： B01J2/16
CPC分类号： B01J2/16 , B01J8/1818 , B01J2219/1923
摘要： In order to produce granules granulometrically polidispersed in a very little range, a fluid bed granulation process of the type comprising the steps of preparing a fluid bed of seeds (S1) of the substance to be granulated, having a free surface (P) substantially horizontal; and feeding a continuous flow (L) of a fluid comprising a growth liquid, provides in the fluid bed for a continuous vortex (V) with a substantially horizontal axis, in which an upper zone (Z1) of seeds wetting and evaporation of possible solvent contained in the flow (L) and a lower zone (Z2) of solidification/consolidation of the growth liquid are identified.
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