Best Practice

LOCATION: Quarry ARTICLE YEAR 2007
ACTIVITY: Production and Processing COMPANY: Blasting Services
SUB ACTIVITY: Aggregate processing COMPANY LOCATION: Venture Crescent, Alfreton, Derbyshire
BEST PRACTICE No: BP460 COMPANY TEL: 01733 837684
COUNTRY OF ORIGIN: United Kingdom
TITLE  
Preventing drill rig overturn
ARTICLE
After two recent incidents in Europe where drill rig overturns occurred, Blasting Services produced the equipment to try and tackle this problem. In certain conditions a drill rig can overturn. This is usually where drilling occurs in awkward places, the boom needs to swing to the side to help stabilize the rig. But if the rig goes over uneven ground before centralizing the boom it can topple. So the intention was to stop these circumstances happening.

An isolator was fitted which prevents the tracking levers working whilst the boom is swung out too far for stability.

The switch is triggered by a bullet sensor if the boom is extended too far. The result of this is that the tracking levers will cut out. Once the boom returns to a safer position the switch is de-activated and the tracking levers can be used again. Once more the driver is in control and able to move into the next position.

- This measure is being extended to all existing rigs.
- New machines will be installed with this safety mechanism.


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