Plastic article or earthenware shaping or treating: apparatus – Tumbling type agglomerating means for particulate material
Patent
1977-09-13
1980-07-15
Garris, Bradley R.
Plastic article or earthenware shaping or treating: apparatus
Tumbling type agglomerating means for particulate material
75 3, 202216, 366221, 425332, 432118, C10B 110, C22B 116, C22B 1216
Patent
active
042126150
ABSTRACT:
Agglomerating apparatus in the form of a rotating drum and a method for agglomerating and controlling the size consist of carbonaceous material, such as particulate coal, finely divided char and, optionally, a binder such as pitch. Control of the agglomerate consist size distribution discharged from the drum is achieved by increasing the relative residence time of the small or growing agglomerates and by limiting contact between the large formed agglomerates and the small forming or growing agglomerates. The preferred means to insure adequate growth time for the small agglomerates consists of a plurality of annular ribs spaced about the inside wall of the drum and a cooperating scraping mechanism. The scraping mechanism comprises a plurality of scraper blades projecting radially from a rotating shaft throughout the length thereof of the agglomerate-forming section of the drum. However, at the annular paths wherein a rib is found the scraping blades are shorter in length.
REFERENCES:
patent: 1980130 (1934-11-01), Fasting
patent: 2243384 (1941-05-01), Lehrecke
patent: 2920344 (1960-01-01), Stirling
patent: 2984861 (1961-05-01), Cox et al.
patent: 3161707 (1964-12-01), Stirling
patent: 3988114 (1976-10-01), Gorin et al.
Bethlehem Steel Corporation
Garris Bradley R.
Noll William B.
O'Keefe Joseph J.
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