Invention Grant
US08852303B2 High pressure feeder and method of operating to feed granular or fine materials
有权
高压进料器和操作方法来进料颗粒或精细材料
- Patent Title: High pressure feeder and method of operating to feed granular or fine materials
- Patent Title (中): 高压进料器和操作方法来进料颗粒或精细材料
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Application No.: US12970006Application Date: 2010-12-16
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Publication No.: US08852303B2Publication Date: 2014-10-07
- Inventor: Pannalal Vimalchand , Guohai Liu , Wan Wang Peng
- Applicant: Pannalal Vimalchand , Guohai Liu , Wan Wang Peng
- Applicant Address: US AL Birmingham
- Assignee: Southern Company Services, Inc.
- Current Assignee: Southern Company Services, Inc.
- Current Assignee Address: US AL Birmingham
- Agency: Thomas | Horstemeyer, LLP
- Main IPC: B01J7/00
- IPC: B01J7/00 ; F23K3/02 ; C10J3/50 ; C10J3/30 ; C10J3/72
Abstract:
A coal feed system to feed pulverized low rank coals containing up to 25 wt % moisture to gasifiers operating up to 1000 psig pressure is described. The system includes gas distributor and collector gas permeable pipes imbedded in the lock vessel. Different methods of operation of the feed system are disclosed to minimize feed problems associated with bridging and packing of the pulverized coal. The method of maintaining the feed system and feeder device exit pressures using gas addition or extraction with the pressure control device is also described.
Public/Granted literature
- US20110146153A1 High Pressure Feeder and Method of Operating to Feed Granular or Fine Materials Public/Granted day:2011-06-23
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