Best Practice

LOCATION: Asphalt/Coating plant ARTICLE YEAR 2014
ACTIVITY: Maintenance & Housekeeping COMPANY: Aggregate Industries
SUB ACTIVITY: N/A COMPANY LOCATION: Darwen Express Asphalt
BEST PRACTICE No: BP904 COMPANY TEL: 07802 260584
TITLE  
Installing “Fire Fan” on sealed asphalt plant house
ARTICLE
DESCRIPTION

The Darwent Asphalt Plant is located within a sealed building. This results in a build up of both heat and fine respirable dust with a high concentration of silica creating a hazardous environment. Operators undertaking repair and maintenance work were required to use respiratory protection suits which were uncomfortable to wear at air temperatures of +40 C. Furthermore, the fire brigade had identified potential casualty recovery difficulties in the event of a fire due to smoke build up.

Having identified these issues, the site staff was involved in the process of developing a solution. It was decided to install a blower fan onto the side of the building that would purge contaminated air and to a system that would produce a fine mist of water that would encapsulate particulate matter, help control the spread of a fire. The system is activated prior to maintenance staff entering the building or by the fire alarm.

BENEFITS


• Total respirable dust reduced from 3.86 to 1.09 mg/m3 8 hour TWA
• Respirable crystalline silica reduced from 0.27 to 0.12 mg/m3 8 hour TWA.
• Air temperatures maintained below 24 C while the fan is operating.
• Temperature reduction achieved within 7 minutes
• Visually, all fumes are evacuated within 2 minutes.
• Respiratory protection is no longer required
• Safer environment for operators
• Improved dust control and housekeeping standards
• Better control of risks in event of fire
• Improved morale and sense of pride in what has been achieved.
ARTICLE IMAGES




pdf document available
Go back to search critera
Sharing health and safety resources helps us all work towards Zero Harm
  • Aggregates |

  • Asphalt |

  • Cement |

  • Contracting |

  • Dimension Stone |

  • Lime |

  • Precast Concrete |

  • Mortar |

  • Readymix |

  • Recycling |

  • Silica Sand |