Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Reducing respirable dust levels during bag conveying and stacking using bag and belt cleaner device.

Authors
Cecala-AB; Timko-RJ; Prokop-AD
Source
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 9596, 1995 Jan; :1-20
NIOSHTIC No.
20031794
Abstract
The U.S. Bureau of Mines has designed and tested a system called the Bag and Belt Cleaner Device (B&BCD) to reduce dust levels in and around the bag conveying and stacking process. The device physically cleans either 22.7 kg (50 lb) or 45.4 kg (100 lb) paper bags by using a combination of bushes and air jets. It is completely self-contained and is kept under negative pressure by a baghouse to ensure that dust and product removed from the bags during cleaning does not flow into the work environment and contaminate workers. The bags travel through the device on a chain conveyor, which permits any product or dust cleaned from the bags to fall into a hopper at the bottom of the device and be recycled back into the process via a screw conveyor. Once exiting the B&BCD, the outside of the bags and the conveyor are essentially product and dust free. The B&BCD was evaluated at two mineral processing plants to determine reductions with the device in use. The results of both field evaluations showed that the amount of product removed from the outside of the bags varied from 77 to 93 pct.
Keywords
Mineral-processing; Mineral-dusts; Dust-control; Dust-control-equipment; Dust-particles; Dusts; Engineering-controls; Control-technology; Respirable-dust
Publication Date
19950101
Document Type
Report of Investigations
Fiscal Year
1995
NTIS Accession No.
PB96-135470
NTIS Price
A03
Identifying No.
RI-9596
ISSN
1066-5552
Source Name
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 9596
State
PA
TOP