Title:
ポリマー粉末の脱気装置および方法
Document Type and Number:
Japanese Patent JP5340747
Kind Code:
B2
Abstract:
The present invention relates to an apparatus for degassing polymer powder comprising a chamber (1) having a first end (20) and a second end (21) opposite to each other, said chamber (1) being equipped with at least one powder inlet and at least one gas outlet at the first end (20) and with at least one powder outlet and at least one gas inlet at the second end (21), and a valve (8) provided with a powder entry and a powder exit and arranged at the powder outlet (6) of said chamber. The apparatus is characterised in that said chamber (1) is equipped with a gas line (16) joining a gas exit of the valve (8) to the inside of the chamber (1) at a position that is at a distance h 2 from the first end (20), said distance h 2 being 20-80% of the height H of the chamber (1) and at a distance I 1 from a wall (22) of said chamber (1), said distance being I 1 0-50 % of the largest diameter L of the chamber (1). The invention also relates to a method for degassing polymer comprising flushing the polymer powder in a chamber with a flow of flushing gas, wherein at least a part of flushing gas exiting the chamber through a powder outlet is re-introduced into said chamber.
Inventors:
Dam, eric
Application Number:
JP2008557750A
Publication Date:
November 13, 2013
Filing Date:
March 06, 2007
Export Citation:
Assignee:
Total Research and Technology Fueri Yui
International Classes:
B29B13/00; B01J19/00; C08F6/00; C08J3/12
Domestic Patent References:
| JP10296724A | ||||
| JP2004527622A | ||||
| JP5869631A |
Foreign References:
| GB2271114A | ||||
| US6566460 | ||||
| EP0075899A2 |
Attorney, Agent or Firm:
Takashi Koshiba
Hiroshi Koshiba
Hiroshi Koshiba