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Multiple-orifice Feeder for Fine Particles.

Authors
Lucas-HG; Smith-NS
Source
NTIS: PB 234 697 :5 pages
Link
NIOSHTIC No.
10009284
Abstract
A feeder screw supplied at constant pressure by a hopper-orifice arrangement was developed for feeding solids in size ranges up to several hundred micrometers at constant flow rates. Performance of the feeder was evaluated by measuring the flow rates obtained with 3- to 7-micrometer coal ash, 70 percent through 200-mesh coal, and minus 325- plus 400-mesh coal ash. Constant feed rates within a few percent of set values were achieved for half-hour periods for the larger particles and for 5 minute periods for the finer particles. Suggestions are given for feedstock preparation and feeder operation for optimum performance.
Publication Date
19740101
Document Type
IH; Report of Investigations
Fiscal Year
1974
NTIS Accession No.
PB-234697
NTIS Price
A01
Identifying No.
RI 7944
NIOSH Division
MERC;
Source Name
NTIS: PB 234 697
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division