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New dual bag nozzle system.

Authors
Cecala-AB; Thimons-ED
Source
Ceram Eng and Sci Proc 1989 Jan; 10:36-41
Link
NIOSHTIC No.
10007201
Abstract
A new dual bag nozzle system has been designed, tested, and shown to effectively reduce workers' exposure to the dust associated with the bag filling process at mineral processing plants. This U.S. Bureau of Mines system is composed of a nozzle within a nozzle. The inner nozzle is used to fill the bag with product. The outer nozzle exhausts excess air from the bag after filling is completed. This depressurizes the bag and reduces product loss through the bag valve during ejection from the fill station and during the conveying process. An improved bag clamp also reduces product blowback during bag filling. Dust reductions of 80 to 90 pct have been achieved for both the bag operator and the workers loading the bags onto pallets. There has also been a 90-pct reduction in product blowback during bag filling, which can account for tremendous product savings.
Keywords
Minerals; Mineral-dusts; Dusts; Dust-control; Dust-control-equipment; Control-technology
CODEN
CESPDK
Publication Date
19890101
Document Type
OP; Journal Article
Fiscal Year
1989
NTIS Accession No.
NTIS Price
Identifying No.
OP-150-89
ISSN
0196-6219
NIOSH Division
PRC
Source Name
Ceramic Engineering and Science Proceedings
State
PA
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