Drying and gas or vapor contact with solids – Apparatus – Rotary drums or receptacles
Patent
1980-12-15
1982-07-13
Schwartz, Larry I.
Drying and gas or vapor contact with solids
Apparatus
Rotary drums or receptacles
34136, 366 57, 366229, 432118, F26B 1104
Patent
active
043387322
ABSTRACT:
An asphalt plant apparatus is disclosed having a material lifter cage arranged in coaxial relationship within a mixing drum. The lifter cage includes a plurality of cage lifters having a trough-like configuration for collecting material in the drum and spilling the material in a veil over the cross section of the drum as the cage lifters pass through a rotational path of travel. The cage lifters are divided into two sets alternately arranged about the lifter cage. The two sets consist of a first set of cage lifters having a material retaining surface fixed at an angle with respect to a radial line extending from the axis of rotation and a second set of cage lifters fixed at an angle approximately 20.degree. different from that of the first set. As the cage lifters pass through the path of travel, the first set of lifters spills material over an arc of the path approximately 20.degree. different from the arc over which the second set spills material thereby increasing uniformity of density of material spilling from the lifters over the path of travel.
REFERENCES:
patent: 1057247 (1913-03-01), Lierfeld
patent: 3717937 (1973-02-01), Thompson
patent: 4174181 (1979-11-01), Garbelman et al.
Allis-Chalmers Corporation
Jones Robert C.
Schwartz Larry I.
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