F - Mech Eng,Light,Heat,Weapons – 27 – B
Patent
F - Mech Eng,Light,Heat,Weapons
27
B
39/11, 39/38, 39
F27B 9/16 (2006.01) C10B 7/02 (2006.01) F27B 9/18 (2006.01)
Patent
CA 1091923
ABSTRACT OF THE DISCLOSURE The rabbles of this invention have a concave active face. They are used in a system for processing material including, for example, a substantially circular and horizontal floor, and a rabble system disposed above, but adjacent to, said floor. The rabble system urges material on the floor to desired locations, such as discharge openings, in response to relative motion between the floor and the rabble system. The rabble system includes a plurality of rabbles. Substantially each rabble has a body portion which carries a curved or angled surface. Each rabble also has a leading edge. Said rabbles are preferably oriented in a system with their leading edges at an angle in the range of about 0° to about +13° to the flow of material and with their concave active faces oriented to intercept and move material in the desired direction. During relative rotary motion between the floor and the rabbles, this orientation and configuration of the rabbles reduces the build-up and bridging of material in front of and between the leading edges of the rabbles while the concave active faces cause substantial amounts of material to flow across the floor. These rabbles and systems are especially useful in the operation of rotary hearths.
294096
Macrae & Co.
Techint Technologies Inc.
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