On Wednesday, February 6, 2013, at approximately 4:00 p.m., a 34-year-old company engineer was killed at a coal preparation facility when he was struck by one of the hydraulic cylinders on a plate-type filter press. A hydraulic cylinder catastrophically failed while the press was in operation. The victim was positioned near the hydraulic cylinders, troubleshooting the operation of the filter press, when the accident occurred. The filter press de-watered the fine coal refuse material generated during the coal cleaning process.
Best Practices
- When troubleshooting or testing pressurized systems, position yourself in a safe location, away from any potential sources of failure.
- When possible, block access to areas where pressurized cylinders, tanks, or other vessels are located while the equipment is in operation and under pressure.
- Train miners in the proper maintenance of and the dangers associated with working around pressurized cylinders, tanks, and other vessels that have the potential to explode or rupture.
- Ensure the ratings of hydraulic components are compatible with their intended use.
- Use the proper tools and equipment for the job.
- Inspect, examine and evaluate all materials that are being used in the installation, replacement, or repair of pressurized systems to ensure they are suitable and meet minimum manufacturer’s specifications.
- Examine and inspect hydraulic components for defects periodically.
Click here for: MSHA Preliminary Report (pdf), MSHA Investigation Report (pdf).