Powered by GoogleTranslate

Occupational Safety and Health Administration OSHA

Violation Detail

Standard Cited:5A0001 OSH Act General Duty Paragraph

Violation Items

Nr: 464020.015 Citation: 02001 Issuance: 12/10/2012 ReportingID: 0215800

Viol Type:Repeat NrInstances:8 Contest Date:
Abatement Date:07/01/2013 2 Nr Exposed:16 Final Order:12/20/2012
Initial Penalty: $10,780.00 REC: Emphasis:
Current Penalty: $8,235.00 Gravity:10 Haz Category:

Penalty and Failure to Abate Event History
Type Event Date Penalty Abatement Type FTA Insp
Penalty Z: Issued 12/10/2012 $10,780.00 01/12/2013 Repeat  
Penalty I: Informal Settlement 12/20/2012 $8,235.00 07/01/2013 Repeat  

Text For Citation: 02 Item/Group: 001 Hazard:

OSH ACT of 1970 Section (5)(a)(1): The employer did not furnish employment and a place of employment which were free from recognized hazards that were causing or likely to cause death or serious physical harm to employees in that employees were exposed to wood dust explosions, deflagrations, and fire hazards due to deficient design and/or implementation of preventive and/or protective measures in its wood pellet processing system and related equipment, such as the following: A) KD (kiln dried wood) Recieving Area, on or about 9/18/2012: KD wood dust conveyed and scalped in this operation generates wood dust emissions which are not adequately captured by the existing dust collection system. Among other methods, one feasible and acceptable abatement method to correct this hazard is to comply with relevant provisions in NFPA 664 (2012) Prevention of Fires and Explosions in Wood Processing and Woodworking Facilities, such as: Section 11.1.2.1 of 2012 NFPA 664 requires that continuous suction to capture and contain fugitive dust shall be provided. Section 11.1.2.2 of 2012 NFPA 664 requires that the captured dust shall be conveyed to one or more dust collectors. Feasible abatement would include providing local exhaust ventilation with sufficient capacity to capture the generated dust at the scalper and conveyors. B) KD (kiln dried wood) Recieving Area, on or about 9/18/12: The KD Receiving dust collector was not provided with an isolation device from the silo number 1 and 2 infeed conveyor. Among other methods, one feasible and acceptable abatement method to correct this hazard is to comply with relevant provisions in NFPA 664 (2012) Prevention of Fires and Explosions in Wood Processing and Woodworking Facilities, such as: Section 8.2.4.1 of 2012 NFPA 664 requires that conveying systems with fire and deflagration hazards shall be isolated to prevent propagation of fire and deflagration both upstream and downstream critical process equipment. Feasible isolation devices include rated rotary feeders, high-speed actuated slide gates, pant leg gates, suppression, etc. C) Dry Hammer Mill, on or about 9/18/12: Isolation devices were not provided at the connecting path between the following components to prevent or mediate the transmission of a flame front or deflagration between them: 1. The infeed conveyor from silos to oscillating screener; 2. The oscillating screener from the hammer mill; 3. The hammer mill plenum from the dust collector; 4. The hammer mill plenum from the screw auger; 5. The screw auger from the distribution bin. Among other methods, one feasible and acceptable abatement method to correct this hazard is to comply with relevant provisions in NFPA 664 (2012) Prevention of Fires and Explosions in Wood Processing and Woodworking Facilities, such as: Section 8.2.4.1 of 2012 NFPA 664 requires that conveying systems with fire and deflagration hazards shall be isolated to prevent propagation of fire and deflagration both upstream and downstream critical process equipment. Feasible isolation devices include but are not limited to, rated rotary feeder valves, high-speed actuated slide gates, pant leg gates, material chokes, suppression, etc. D) Dry Hammer Mill, on or about 9/18/12: The make-up air duct to the dry hammer mill was not designed, constructed and installed to contain deflagration. Among other methods, one feasible and acceptable abatement method to correct this hazard is to comply with relevant provisions in NFPA 664 (2012) Prevention of Fires and Explosions in Wood Processing and Woodworking Facilities, such as: Section 8.2.2.2.3 of 2012 NFPA 664 requires that ducts with deflagration hazards (potential bursting) shall be designed, constructed and installed so that: a. Duct is strong enough to contain deflagration b. Provided with deflagration suppression c. Provided with relief vents ducted to the outdoors d. Provided with relief vents thru flame quenching devices As immediate mitigation the employer sealed the make-up air openings to the dry hammer mill. Feasible and permanent abatement might include high-speed actuated slide gates, suppression, stronger duct to contain and convey deflagration outdoors, stronger duct vented to a flame-quenching device. E) Rotary Dryer, on or about 9/18/12: The Rotary Dryer which had deflagration hazards was located inside the building where there were no effective methods to prevent employees from being exposed to serious injury or death from explosion and fire. Among other methods, one feasible and acceptable abatement method to correct this hazard is to comply with relevant provisions in NFPA 664 (2012) Prevention of Fires and Explosions in Wood Processing and Woodworking Facilities, such as: Section 8.6.2 of 2012 NFPA 664 offers strict guidance that rotary dryers shall be located outdoors or in a separate detached building or in a separate cutoff room with damage-limiting construction. Feasible abatement for the dryer includes: a. Relocating the dryer outside or to a separate detached building. Modifying the existing structure to create a cutoff room with damage-limiting construction would also satisfy code intent. b. Shutdown of the dryer if embers are detected by a secondary fail-safe detector between the dryer and the cyclones. c. Isolation of dryer outfeed if embers are detected by a secondary fail-safe detector between the dryer and the cyclones. d. Stop material infeed to the dryer if embers are detected by a secondary fail-safe detector between the dryer and the cyclones. e. Shut off dryer heat sources if embers are detected by a secondary fail-safe detector between the dryer and the cyclones. F) Rotary Dryer, on or about 9/18/12: The Rotary Dryer is operating without an extinguishing system located between the dryer drum and the six downstream cyclones. Among other methods, one feasible and acceptable abatement method to correct this hazard is to comply with relevant provisions in NFPA 664 (2012) Prevention of Fires and Explosions in Wood Processing and Woodworking Facilities, such as: Section 8.6.2.2 of 2012 NFPA 664 requires that rotary dryers have automatic spark detection (existing FireFly Detector) and extinguishing systems located between the dryer drum and downstream material-handling. Feasible abatement should follow the guidance in the 2012 NFPA 664 Appendix 8.6.2.2. which recommends: a. Spark detection and extinguishing systems (e.g., water deluge spray) on the duct between the dryer and the cyclone. b. Provide a second fail-safe detection point on the duct downstream of the extinguishing system and upstream of the cyclones to: i. Isolate dryer cyclone outfeed ii. Stop material infeed to the dryer iii. Initiate water deluge in the dryer G) Cyclones downstream of Rotary Dryer, on or about 9/18/12: There are six cyclones operating without an automatic water spray deluge interlocked to a second fail-safe detection point on the duct downstream of the extinguishing system and upstream of the cyclones. Among other methods, one feasible and acceptable abatement method to correct this hazard is to comply with relevant provisions in NFPA 664 (2012) Prevention of Fires and Explosions in Wood Processing and Woodworking Facilities, such as: Section 8.6.2.2 of 2012 NFPA 664 requires that rotary dryers have automatic spark detection (existing FireFly Detector) and extinguishing systems located between the dryer drum and downstream material-handling. Feasible abatement should follow the guidance in the 2012 NFPA 664 Appendix 8.6.2.2. which recommends: a. Spark detection and extinguishing systems (e.g., water deluge spray) on the duct between the dryer and the cyclone. b. Provide a second fail-safe detection point on the duct downstream of the extinguishing system and upstream of the cyclones to: i. Isolate dryer cyclone outfeed ii. Stop material infeed to the dryer iii. Initiate water deluge in the dryer H) Cyclones downstream of Rotary Dryer, on or about 9/18/12: The cyclone plenum explosion vent discharges into the building rather than to outdoors. The building is not designed for the overpressure that would be introduced from a deflagration and fire event. Among other methods, one feasible and acceptable abatement method to correct this hazard is to comply with relevant provisions in NFPA 664 (2012) Prevention of Fires and Explosions in Wood Processing and Woodworking Facilities, such as: Section 8.2.2.5.1.4 of the 2012 NFPA 66428 specifies that indoor dust collectors (e.g. cyclones per definition 3.3.10 of 2012 NFPA 664) must be vented to a safe area outdoors. Section 6.4.2.1 of the 2012 NFPA 664 which requires that a facility which may be subjected to a damaging overpressure event (e.g., relief of cyclone vent) should be constructed to relieve the deflagration pressure. Feasible abatement would include the installation of wall or roof pressure relief panels. NEW ENGLAND WOOD PELLET, LLC. WAS PREVIOUSLY CITED FOR A VIOLATION OF THIS OCCUPATIONAL SAFETY AND HEALTH STANDARD, SECTION 5(a)(1) WHICH WAS CONTAINED IN OSHA INSPECTION NUMBER 311584213, CITATION NUMBER 2, ITEM NUMBER 1, ISSUED ON JULY 22, 2008, WITH RESPECT TO A WORKPLACE LOCATED AT 141 OLD SHARON ROAD, JAFFREY, NEW HAMPSHIRE, 03452. THE FINAL ORDER DATE FOR THE CITATION WAS ON AUGUST 5, 2008 UPON SIGNING AN INFORMAL SETTLEMENT AGREEMENT.

Thank You for Visiting Our Website

You are exiting the Department of Labor's Web server.

The Department of Labor does not endorse, takes no responsibility for, and exercises no control over the linked organization or its views, or contents, nor does it vouch for the accuracy or accessibility of the information contained on the destination server. The Department of Labor also cannot authorize the use of copyrighted materials contained in linked Web sites. Users must request such authorization from the sponsor of the linked Web site. Thank you for visiting our site. Please click the button below to continue.

Close