Heat exchange – Regenerator – Checker brick structure
Patent
1991-10-07
1992-12-01
Ford, John K.
Heat exchange
Regenerator
Checker brick structure
165 13, 165 47, 165920, 165170, 34165, 71 6403, F28F 312, F28F 314, F28D 102
Patent
active
051672740
ABSTRACT:
Free-flowing solid particulates are cooled in an apparatus comprising a housing containing a multiplicity of parallel, vertical, expanded heat exchanger plates spaced at 15-100 mm and having passages therebetween. Each plate has continuous flow channels for cooling fluid therein. A fluid inlet and outlet are attached to the flow channels in each plate and common fluid inlet and outlet headers are attached to the inlets and outlets, respectively. A feed hopper for feeding particulates to the passages is positioned above and attached to the housing. A discharge hopper for receiving cooled particulates from the passages is positioned below and attached to the housing. The discharge hopper contains two adjacent parallel bins each having a swinging section operatively connected to an actuator activated by a level control means positioned in the feed hopper. Particulates such as fertilizer particulates, are fed into the feed hopper and pass downward in a mass flow regime between the heat exchanger plates where they are cooled with a fluid, preferably water, that passes through the plates. Cooled particulates collect in the discharge hopper from which they are discharged at a rate controlled by the actuator and level controller so that the plates are maintained in a flooded state with respect to the particulates. Attrition and abrasion of the particulates are substantially eliminated.
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Cominco Ltd.
Ford John K.
Fors Arne I.
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