发明授权
- 专利标题: Process and apparatus for drying liquid-borne solid material
- 专利标题(中): 用于干燥液体固体材料的方法和装置
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申请号: US652578申请日: 1996-09-23
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公开(公告)号: US5946818A公开(公告)日: 1999-09-07
- 发明人: Hamish Baxter , Andrew Nicolson Carruthers , Hans-Peter Elkjaer , Bryan Hiscox , Jens Fenger , Benny E. Raahauge , Jose Gil Fernandez Pulpeiro
- 申请人: Hamish Baxter , Andrew Nicolson Carruthers , Hans-Peter Elkjaer , Bryan Hiscox , Jens Fenger , Benny E. Raahauge , Jose Gil Fernandez Pulpeiro
- 申请人地址: CAX Montreal
- 专利权人: Alcan International Limited
- 当前专利权人: Alcan International Limited
- 当前专利权人地址: CAX Montreal
- 优先权: EPX93309520 19931130
- 主分类号: F26B3/12
- IPC分类号: F26B3/12 ; F26B17/10 ; F26B7/00
摘要:
A method and apparatus are disclosed for continuously drying, preferably with agglomeration and/or coating and sizing, and separating a solid product from a liquid feed material, especially bauxite slurry which passes through a very sticky phase during drying, without significant encrustation of the equipment used. The method comprises: spraying a liquid bearing solid material upwardly into a drying zone, feeding a drying gas into the drying zone from below The spraying liquid in substantially parallel flow, removing the mixture of the drying gas and entrained dried particles from the drying zone, separating the entrained dried particles from their mixture with the drying gas, returning the separated dried particles to the drying zone, and collecting the dried particles, characterized by arranging for the formation of a slower moving boundary layer within the feeding of the drying gas, through which boundary layer dried particles are allowed lo fall under gravity to be collected, and by collecting the dried particles continuously from below the spraying liquid.
公开/授权文献
- US5127228A Shape memory bi-directional rotary actuator 公开/授权日:1992-07-07
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