Process and apparatus for simultaneously grinding and drying a material to be ground containing moist cellulose ether
AssigneeClariant GmbH
InventorsReinhard Doenges, Manfred Sponheimer, Guenther Welt, Manfred Ziegelmayer
Life of this patent
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Abstract
In the process and the apparatus, a gas stream is divided into three partial gas streams. The first partial gas stream transports the material to be ground into the grinding and friction space of a mill (26), while the second partial gas stream runs around the friction space in the mill. The third partial gas stream is connected to the output side of the mill and takes up the reduced and dried ground material, transported out of the mill by the first and second partial gas streams, in order to transport it to a separator (30).
Claims13
An apparatus for carrying out a process for simultaneously grinding and drying a material to be ground containing moist cellulose ether, comprising a main gas line (23), connected to a gas-stream source (32), is connected via a heating and temperature-controlling register (22) to an outlet line (37) of a mill (26) and to a separator (30), wherein a first gas line (24) branches off from the main gas line and is connected to a metering line (36) for the material to be ground and is connected to the mill (26) on the input side and wherein a second gas line (25) branches off from the first gas line (24) and is connected to the mill (26) on the input side.
Dependencies are inferred from the claim text.