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公开(公告)号：EP1425146A2
公开(公告)日：2004-06-09
申请号：EP02747137.4
申请日：2002-08-13
申请人： Bühler AG
CPC分类号： F26B3/08 , B01D9/0031 , B01J8/1836 , B01J8/26 , B01J8/34 , B01J8/36 , B01J8/44 , B01J2208/0053 , B01J2208/00557 , B01J2208/00619 , B01J2208/00672 , B01J2208/00681 , B01J2208/0084 , B01J2208/00884 , B29B13/021 , B29K2067/00 , B29K2995/0041 , C08G63/88
摘要： The invention relates to a device (1) for continuous heat treatment of granulated materials, especially to the crystallization of polymer granulate, such as polyethylenterephthalate (PET) for example. The device comprises several adjacent fluidization chambers (2, 3, 4, 5, 6) respectively provided with a sieve plate (11) through which a fluidization gas used to fluidize the granulate can be insufflated into the respective chamber from below via a gas inlet (9), said gas being able to escape via a gas outlet (10) in the top area of the device. The first chamber (2) takes up the greater part of the overall volume of all chambers (2, 3, 4, 5, 6) and neighbouring chambers are, respectively, fluidically connected by means of product throughflow openings (18, 19, 20, 21; 28, 29, 30, 31) in the separating walls (14, 15, 16, 17) arranged therebetween. According to the inventive method, using the inventive device (1), the granulated material is guided through several adjacent fluidization chambers (2, 3, 4, 5, 6), the absolute filling level of the fluidized granulating material in the first chamber (2) being at least as high as the absolute filling level of the other adjacent chambers (3, 4, 5, 6) disposed downstream therefrom.
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公开(公告)号：EP1144169B1
公开(公告)日：2003-08-13
申请号：EP00900015.9
申请日：2000-01-04
申请人： BÜHLER AG
CPC分类号： B29B13/021 , B29C71/0063 , B29K2067/00 , Y10T117/10
摘要： The invention relates to a method for treating plastic material, especially polyethylene terephthalate, wherein the relatively low temperature material is initially crystallized by heating before subjecting said material to heating or condensation in the solid phase. The material is then exposed to a hot treatment gas for at least 10 minutes in at least two chambers (2) of an apparatus and crystallized at a temperature above 135° C, e.g. 140-180° C. The material is subsequently heated in a preheating chamber (3) having at least one to eight stages at a temperature of at least 185° C, preferably at least 200° C and more preferably around 220° C.
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公开(公告)号：EP1425146B1
公开(公告)日：2010-09-22
申请号：EP02747137.4
申请日：2002-08-13
申请人： Bühler AG
CPC分类号： F26B3/08 , B01D9/0031 , B01J8/1836 , B01J8/26 , B01J8/34 , B01J8/36 , B01J8/44 , B01J2208/0053 , B01J2208/00557 , B01J2208/00619 , B01J2208/00672 , B01J2208/00681 , B01J2208/0084 , B01J2208/00884 , B29B13/021 , B29K2067/00 , B29K2995/0041 , C08G63/88
摘要： The invention relates to a device (1) for continuous heat treatment of granulated materials, especially to the crystallization of polymer granulate, such as polyethylenterephthalate (PET) for example. The device comprises several adjacent fluidization chambers (2, 3, 4, 5, 6) respectively provided with a sieve plate (11) through which a fluidization gas used to fluidize the granulate can be insufflated into the respective chamber from below via a gas inlet (9), said gas being able to escape via a gas outlet (10) in the top area of the device. The first chamber (2) takes up the greater part of the overall volume of all chambers (2, 3, 4, 5, 6) and neighbouring chambers are, respectively, fluidically connected by means of product throughflow openings (18, 19, 20, 21; 28, 29, 30, 31) in the separating walls (14, 15, 16, 17) arranged therebetween. According to the inventive method, using the inventive device (1), the granulated material is guided through several adjacent fluidization chambers (2, 3, 4, 5, 6), the absolute filling level of the fluidized granulating material in the first chamber (2) being at least as high as the absolute filling level of the other adjacent chambers (3, 4, 5, 6) disposed downstream therefrom.
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4.发明授权VORRICHTUNG UND VERFAHREN ZUR THERMISCHEN NACHBEHANDLUNG VON POLYMEREM KUNSTSTOFFMATERIAL IN GRANULATFORM 有权DEVICE AND METHOD FOR聚合物的塑料材料呈颗粒状热治疗
公开(公告)号：EP1320450B1
公开(公告)日：2009-09-30
申请号：EP01944858.8
申请日：2001-07-09
申请人： Bühler AG
CPC分类号： F26B21/14 , B29B13/021 , B29B13/065 , B29C71/0063 , B29K2067/00 , C08G63/90 , F26B17/122 , F26B17/145
摘要： The invention relates to a device for the thermal secondary treatment of plastic material in granulate form, in particular of polyester material such as polyethylene-terephthalate, in a flat shaft reactor comprising a substantially rectangular cross-section. The shaft (1) consists of an upper region (4) and a lower region (5), whose horizontal cross-section (Q5) tapers downwards in a vertical direction. At least sections of the vertical shaft walls (4A) and (4B) have screen-type gas dispersion regions. The large opposing shaft walls 5a and 5b of the lower outlet region (5) are likewise gas dispersion regions. The gas dispersion regions consist of wedge-wire screens, which can have different arrangements of gaps according to requirements. The special gap arrangements in the wedge-wire screens allow the standardisation of the granulate speed profile over horizontal cross-sections in the shaft region. Vibrations and impact stresses of the device are reduced by the mounting of elements ('diamonds') and the granulate speed profile is further optimised.
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5.发明公开VORRICHTUNG UND VERFAHREN ZUR THERMISCHEN NACHBEHANDLUNG VON POLYMEREM KUNSTSTOFFMATERIAL IN GRANULATFORM 有权DEVICE AND METHOD FOR聚合物的塑料材料呈颗粒状热治疗
公开(公告)号：EP1320450A1
公开(公告)日：2003-06-25
申请号：EP01944858.8
申请日：2001-07-09
申请人： Bühler AG
CPC分类号： F26B21/14 , B29B13/021 , B29B13/065 , B29C71/0063 , B29K2067/00 , C08G63/90 , F26B17/122 , F26B17/145
摘要： The invention relates to a device for the thermal secondary treatment of plastic material in granulate form, in particular of polyester material such as polyethylene-terephthalate, in a flat shaft reactor comprising a substantially rectangular cross-section. The shaft (1) consists of an upper region (4) and a lower region (5), whose horizontal cross-section (Q5) tapers downwards in a vertical direction. At least sections of the vertical shaft walls (4A) and (4B) have screen-type gas dispersion regions. The large opposing shaft walls 5a and 5b of the lower outlet region (5) are likewise gas dispersion regions. The gas dispersion regions consist of wedge-wire screens, which can have different arrangements of gaps according to requirements. The special gap arrangements in the wedge-wire screens allow the standardisation of the granulate speed profile over horizontal cross-sections in the shaft region. Vibrations and impact stresses of the device are reduced by the mounting of elements ('diamonds') and the granulate speed profile is further optimised.
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公开(公告)号：EP1144169A1
公开(公告)日：2001-10-17
申请号：EP00900015.9
申请日：2000-01-04
申请人： BÜHLER AG
CPC分类号： B29B13/021 , B29C71/0063 , B29K2067/00 , Y10T117/10
摘要： The invention relates to a method for treating plastic material, especially polyethylene terephthalate, wherein the relatively low temperature material is initially crystallized by heating before subjecting said material to heating or condensation in the solid phase. The material is then exposed to a hot treatment gas for at least 10 minutes in at least two chambers (2) of an apparatus and crystallized at a temperature above 135° C, e.g. 140-180° C. The material is subsequently heated in a preheating chamber (3) having at least one to eight stages at a temperature of at least 185° C, preferably at least 200° C and more preferably around 220° C.
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