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Design Of Jaw Crusher Paying Attention To Workers Safety

To quote a wise crusher operator, crushing is not just about tons per hour; it's about safe tons per hour.' but consider that a safe workplace is not achieved via mere lip service and signage, but rather from the right mindset--from owners, managers and workers--and from the manufacturers of each piece of processing equipment.Importantly, manually digging out the crusher before repairs or restarts puts workers in dangerous positions.The mine safety and health administration (msha) has reported numerous injuries and fatalities incurred when climbing in or under the jaw to manually clear, repair or adjust the typical older-style jaw crusher.As such, a welcome market entry is that of modern crusher design, derived from a major impetus to put safety first while also meeting demand for far greater productivity and ease of maintenance.Whether a crusher is jammed by large material or uncrushable debris, or stalled by a power failure, the chamber must be cleared before restarting.Manual clearing is a lengthy and risky task, especially since material can be wedged inside the crusher with tremendous pressure, and dislodging poses much danger to workers placed in harm's way inside the crusher.The hydraulic chamber clearing system on the model 3258 jaw automatically opens the crusher to a safe position, allowing materials to pass.Its hydraulic relief protects parts and components against overload damage, and its hydraulic adjustment reduces maintenance time and maintains safe, consistent crusher output without the need for manual intervention.Safety is a culture and should be championed by every worker in the operation.At the same time, management should respond immediately to each worker's safety concerns and successes, rather than monitoring only overall team efforts and targets.And, manufacturers should engineer greater safety as well as productivity into their units while accompanying their equipment with strong operational and safety training programs.It has never been more important to consider the potential hazards of conventional, older-style crushers versus modern jaw crusher design.And even during today's challenging economic climate, safety should never be minimized due to a need to achieve lower prices or costs.Modern crusher design is a major development in safe material processing--one that allows operations to maximize productivity while putting safety first.A jaw crusher is one of the main types of primary crushers in a mine or ore processing plant.The size of a jaw crusher is designated by the rectangular or square opening at the top of the jaws (feed opening).For instance, a 24 x 36 jaw crusher has a opening of 24' by 36', a 56 x 56 jaw crusher has a opening of 56' square.Primary jaw crushers are typically of the square opening design, and secondary jaw crushers are of the rectangular opening design.However, there are many exceptions to this general rule.A jaw crusher reduces large size rocks or ore by placing the rock into compression.A fixed jaw, mounted in a 'v' alignment is the stationary breaking surface, while the movable jaw exerts force on the rock by forcing it against the stationary plate.The space at the bottom of the 'v' aligned jaw plates is the crusher product size gap, or the size of the crushed product from the jaw crusher.The rock remains in the jaws until it is small enough to pass through the gap at the bottom of the jaws.Today's jaw crushers utilize hydraulics to do the heavy work, reducing maintenance time and keeping workers at a safe distance.The graphics below illustrate how hydraulics facilitate the toggle removal, eliminating the need for workers to access under the jaw while lowering heavy items.Hydraulics push the pitman forward and a lock-out pin is inserted through the side plate securing the pitman.The toggle is secured for lowering and hydraulic pressure is reduced in the tension cylinders, freeing the toggle.Hydraulics retract the toggle beam.Jaw crusher: http://www.Hxjqchina.Com/product-list_11.Htmlprimary crushers: http://www.Hxjq-crusher.Com/1.Htmlore processing plant: http://www.Hxjqchina.Com/n28.Html.

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