公开(公告)号：US4203689A

公开(公告)日：1980-05-20

申请号：US905171

申请日：1978-05-10

申请人： Istvan Kraxner ,  Antal Sebok ,  Janos Steiner ,  Jozsef Toth

发明人： Istvan Kraxner ,  Antal Sebok ,  Janos Steiner ,  Jozsef Toth

IPC分类号： B65G53/36 ,  B65G53/52 ,  B65G53/40 ,  F27B15/08

CPC分类号： B65G53/528 ,  B65G53/36

摘要： A self-adjusting powder distributor--which is particularly intended for use with alumina calcination apparatus--comprises a casing with a permeable partition, a plurality of outlets, and means for introducing preheated hydrate above the partition and fluidizing air therebelow. The fluidized hydrate withdraws through outlets of the casing for further treatment or partly as final product. The casing is provided with means by which the amounts and mutual ratios of the withdrawing material can be adjusted according to preselected values by altering the cross-sectional flow area or the level of the outlets.

摘要翻译： 特别适用于氧化铝煅烧装置的自调整粉末分配器包括具有可渗透分隔件的壳体，多个出口，以及用于在分隔件上方引入预热的水合物并在其周围流化空气的装置。 流化的水合物通过套管的出口退出以进一步处理或部分作为最终产品。 壳体设置有可以通过改变横截面流动面积或出口水平根据预先选择的值来调节抽出材料的量和相互比例的装置。

公开(公告)号：US4250774A

公开(公告)日：1981-02-17

申请号：US8191

申请日：1979-01-31

申请人： Istvan Kraxner ,  Antal Sebok ,  Janos Steiner ,  Jozsef Toth

发明人： Istvan Kraxner ,  Antal Sebok ,  Janos Steiner ,  Jozsef Toth

IPC分类号： F27B7/20 ,  F27B15/00 ,  F27B7/02

CPC分类号： F27B7/2016

摘要： A self-adjusting powder distributor--which is particularly intended for use with alumina calcination apparatus--comprises a casing with a permeable partition, a plurality of outlets, and means for introducing preheated hydrate above the partition and fluidizing air therebelow. The fluidized hydrate withdraws through outlets of the casing for further treatment or partly as final product. The casing is provided with means by which the amounts and mutual ratios of the withdrawing material can be adjusted according to preselected values by altering the cross-sectional flow area or the level of the outlets.

摘要翻译： 特别适用于氧化铝煅烧装置的自调整粉末分配器包括具有可渗透分隔件的壳体，多个出口，以及用于在分隔件上方引入预热的水合物并在其周围流化空气的装置。 流化的水合物通过套管的出口退出以进一步处理或部分作为最终产品。 壳体设置有可以通过改变横截面流动面积或出口水平根据预先选择的值来调节抽出材料的量和相互比例的装置。

公开(公告)号：US4671497A

公开(公告)日：1987-06-09

申请号：US702329

申请日：1985-02-15

申请人： Christoph Schmitz ,  Istvan Kraxner

发明人： Christoph Schmitz ,  Istvan Kraxner

IPC分类号： B01J6/00 ,  C01F7/44 ,  F27B7/20 ,  F27B15/09

CPC分类号： C01F7/441 ,  C01F7/444 ,  F27B7/2016 ,  Y02P20/129

摘要： A method and apparatus for calcining an aluminum hydroxide source to an aluminum oxide in which the amount of the .alpha.-modification can be controlled from very low to very high values. In accordance with the present invention, the calcination of the source material takes place in two stages, in the first of which the material is preheated with air and then passed to a fluidized bed calciner after which it is delivered to a holding cyclone. In the second stage, the previously calcined material which may contain up to about 80% of the .alpha.-modification is calcined further in a rotary tubular kiln which is followed downsteam by a cooler.

摘要翻译： 一种将氢氧化铝源煅烧成氧化铝的方法和装置，其中可以将α-改性的量从非常低的值控制到非常高的值。 根据本发明，源材料的煅烧分为两个阶段，其中第一个材料用空气预热，然后通过流化床煅烧炉，然后将其输送到保持旋风分离器。 在第二阶段中，可以含有高达约80％的α-改性的先前煅烧的材料在旋转管状窑中进一步煅烧，随后通过冷却器将其蒸发。