F - Mech Eng,Light,Heat,Weapons – 28 – C
Patent
F - Mech Eng,Light,Heat,Weapons
28
C
F28C 3/12 (2006.01) B01J 2/00 (2006.01) B29B 9/16 (2006.01) C22B 1/26 (2006.01) F26B 17/12 (2006.01) F27D 15/02 (2006.01)
Patent
CA 2080399
An apparatus adapted for cooling warm pellets and like granular product comprises: i) a bin having a product inlet at its upper and a product discharge at its lower end, ii) a grate system on which pellet product is temporarily retained to effect cooling thereof, iii) a fan for developing an upward flow of air through the grate system to cool pellet product retained on the grate system, iv) a support for mounting the grate system in the bin, the grate system traversing the bin to ensure thereby that all pellet product passes through the grate system, through the grate system, v) the grate system comprising first and second grates with the first grate overlying the second grate, vi) the support being adapted to permit reciprocal lateral movement between the first grate relative to the second grate, vii) the first grate having a plurality of parallel generally spaced apart members, each member extending across said bin, viii) the second grate having a plurality of parallel equally spaced apart beams, each beam extending parallel to the members and extending across the bin, ix) a drive for reciprocating the members relative to the beams, the drive moving the members and beams between a first relative position in which pellet product is retained on the grate system and a second relative position in which pellet product flows through the grate system towards the product discharge, x) the first grate members having a cross-sectional configuration to permit continuous flow of air through the grate system at all times for all relative positions including and between said first and second positions, xi) each of the members having an air flow deflector for dividing a flow of air entering the first grate as such flow of air passes upwardly between the beams of the second grate, into primary and secondary air flows for each first grate member, xii) each of the first grate members having a primary air outlet and a secondary air outlet, each of the primary and secondary air outlets extending along the respective first member, movement of the air flow deflector relative to the second beam continues to divide air flow into the primary and secondary streams where volume of air flowing through the secondary outlet increases and correspondingly decreases through said the primary outlet as pellet product commences to flow through the primary outlet while the first and second grates move toward the second position.
Donmar Welding & Fabricating Ltd.
Sim & Mcburney
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