F - Mech Eng,Light,Heat,Weapons – 27 – B
Patent
F - Mech Eng,Light,Heat,Weapons
27
B
23/421
F27B 15/00 (2006.01) F22B 31/00 (2006.01) F23C 10/00 (2006.01) F23C 10/08 (2006.01) F27B 15/16 (2006.01)
Patent
CA 1328345
21 ABSTRACT A fluid-bed combustion reactor 51 comprising a substantially vertical reactor chamber with a first inlet 9 at the reactor chamber lower portion 52 for the introduction of liquid and/or solid particulate material, and a second inlet 22 at a level below the first inlet for the introduction of gas for fluidization of particulate material within the reactor in order to maintain a primary fluid bed, an exhaust duct 28 at the reactor chamber upper portion for the withdrawal of exhaust gas and particles from the reactor, and a fluid-bed cooler 42 for particulate material, formed as an upwards open vessel with generally closed bottom and side walls and arranged so as to collect a portion of particulate material 64, 65 from the reactor chamber upper portion, said cooler comprising heat transfer means 43 such as tubes carrying a heat transfer medium at the inside and having said particulate material flowing at the outside, said cooler comprising at least one conduit 56 for the controlled returning of particulate material from the cooler to the primary fluid bed, and said cooler having inlets at the bottom wall 68 for introduction of gas for fluidization of particulate material. The heat transfer means are divided into at least two sections, and the inlets for fluidization gas are divided into sections corresponding with the heat transfer means sections and provided with separate control means for the inflow of fluidization gas into each section. Fig. 3
592627
Aalborg Ciserv International A/s
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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