With large, cumbersome rocks, heavy machinery, dust, and noise to contend with, safety must be a top priority for quarry managers at the critical primary crushing stage of the aggregate production process. Blockages caused by single oversized rocks or coarse or uneven material becoming jammed together interrupt the flow of material and therefore have a knock-on effect on later processing stages like secondary and fine crushing.
In order to get things moving again while significantly reducing the risk to the health and safety of personnel or damage to equipment, quarry operations need a safe and controlled way of dealing with these blockages. The equipment used for primary crushing is extremely powerful – no surprise given the nature of the material it has to deal with – and may be difficult to access in a safe manner in the event of a blockage. There is also the risk that materials can be ejected back out of the feed cavity during a build up or blockage, causing serious injury.
How to keep your site personnel safe?
Remote-controlled rock-breaker equipment such as the Metso rock breaker offers a safer way to deal with this kind of problem. First of all, it removes the need for personnel to be in close proximity to the primary crushing equipment; instead, they can control the rock breaker from a safe distance using the radio-based remote control system while still maintaining visual contact with the blockage.