Heating – With heating gas conveying – agitating – scattering or...
Reissue Patent
2008-04-01
2008-04-01
Lu, Jiping (Department: 3749)
Heating
With heating gas conveying, agitating, scattering or...
C432S106000, C432S014000
Reissue Patent
active
10004151
ABSTRACT:
A self-contained calcination plant is enclosed in a feed-storage silo. The plant consists of a vertical reactor, a separation cyclone and a pair of heat exchangers connected by appropriate piping and immersed in the feed material stored in powdery form in the silo. A positive displacement blower creates an air stream that is preheated in one of the heat exchangers and fed in part to a gas burner and in part to a feed pipe at the bottom of the reactor. The feed material is kept in a fluidized state in the silo by air heated in the other heat exchanger and blown upward from the bottom of the storage compartment, from where the material is dropped into the feed pipe through rotary valves prior to injection into the reactor. The feed pipe is connected tangentially to the reactor so as to produce an upward swirling flow around the burner's flame. The fluidized reaction products are passed through a cyclone to separate the calcined oxides from the hot gases, which are then fed serially through the heat exchangers to preheat the process air used for the blower and the storage compartment. The solid product is recovered from the bottom of the cyclone. The entire plant is enclosed in the silo and, during operation, all units are immersed in the fluidized hot feed material that provides excellent heat transfer among all components and a sufficiently uniform temperature in the reactor to produce optimal calcination.
REFERENCES:
patent: 3584848 (1971-06-01), Kiyonaga et al.
patent: 3862294 (1975-01-01), Engelhart et al.
patent: 3881862 (1975-05-01), Nishida et al.
patent: 3980486 (1976-09-01), Touborg
patent: 4025295 (1977-05-01), Touborg
patent: 4118177 (1978-10-01), Weber et al.
patent: 4483831 (1984-11-01), Schmidt et al.
patent: 4747773 (1988-05-01), Predescu et al.
patent: 4932862 (1990-06-01), Kettenbauer
patent: 5132102 (1992-07-01), Cohen et al.
patent: 5174749 (1992-12-01), Jorgensen et al.
patent: 5260041 (1993-11-01), Cohen et al.
patent: 5713734 (1998-02-01), Makris et al.
Lu Jiping
Pneumatic Processing Technologies, Inc.
Quarles & Brady LLP
LandOfFree
Pneumatic flash calciner thermally insulated in feed storage... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pneumatic flash calciner thermally insulated in feed storage..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pneumatic flash calciner thermally insulated in feed storage... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3908187