In-depth survey report of silica flour dust during packing, transfer, and shipping at the Central Silica Company, Glass Rock Plant, Glass Rock, Ohio
A visit was made to the Central Silica Company, Glass Rock, Ohio to evaluate methods used to control employee exposure to silica dust. The control methods at this company included careful handling and transfer of damp materials, exhaust ventilation, good housekeeping procedures, and the use of respiratory protection. Evaluations were made of the packing area, transfer point, inside loading trucks, and ambient air at sections of the flour building. Control systems included a good exhaust-ventilation system and four ventilation hoods. Evaluations were made of samples collected by an MSA gravimeter dust sampler, the Del High volume electrostatic precipitation, and bulk and rafter samples. Dust control methods appeared to be effective due to the existence of good engineering controls, good work practices, and an effective respiratory protection program. Additional control measures included the handling of the ore as a damp material, thus reducing the generation of dust particles. Outside dust sources were being reduced. Most of the product was shipped in bulk. Plastic wrapping was used around pallet loads to reduce bag breakage and dust dispersion. A filtered air system controlled low dust levels in the Pebble Mill control room. Enclosed screens operated under negative pressure separated fine from coarse product at the process building.
- Research Organization:
- National Inst. for Occupational Safety and Health, Cincinnati, OH (USA). Div. of Physical Sciences and Engineering
- OSTI ID:
- 6035466
- Report Number(s):
- PB-89-139257/XAB; ECTB-120-12A
- Resource Relation:
- Other Information: See also PB--89-139240
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
DUSTS
AIR POLLUTION CONTROL
HAZARDOUS MATERIALS
SILICA
MINERAL INDUSTRY
OCCUPATIONAL SAFETY
AIR POLLUTION MONITORING
CONTROL EQUIPMENT
INSPECTION
QUARTZ
SAFETY ENGINEERING
VENTILATION
CHALCOGENIDES
CONTROL
ENGINEERING
EQUIPMENT
INDUSTRY
MATERIALS
MINERALS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
SAFETY
SILICON COMPOUNDS
SILICON OXIDES
500200* - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)
552000 - Public Health