1 / 7

New Miner Training

New Miner Training. Rock Dusting in Coal Mines. Purpose of Rock Dusting. Prevent the initiation of or propagation of a coal dust explosion. Assists with illumination. What is rock dust?. Pulverized limestone Shall not contain more than 5% quartz or free silica

habib
Download Presentation

New Miner Training

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. New Miner Training Rock Dusting in Coal Mines

  2. Purpose of Rock Dusting • Prevent the initiation of or propagation of a coal dust explosion. • Assists with illumination.

  3. What is rock dust? • Pulverized limestone • Shall not contain more than 5% quartz or free silica • 100% will pass through a twenty mesh screen and 75% will pass through a 200 mesh screen • Bulk or Bags (40 lbs)

  4. How is it applied? • Bulk dust is applied by pressurized air tanks pushing rock dust through a hose. • The dust is then sprayed on to the mine roof, ribs and floor. • Trickle dusters. • By hand or shovel.

  5. When and where is it applied? • As soon as possible following the extraction of coal at the working face. • Along belts where coal dust accumulates. • In return air ways. • Along intake travel ways and haulages.

  6. Emergency use • Placed at areas where combustible materials are stored. ( oil stations, emergency materials locations etc.) • Rock dust is applied to small fires.

  7. Personal protective equipment • Respirators. • Well fitted. • Correct filters. • Cleaned and maintained.

More Related