Pit & Quarry, October 2015
SPECIAL SECTION CONVEYING MATERIAL HANDLING PUMPS Displacement pumps handle high temperatures Mouvexs A Series positive displacement pumps use eccentric disc technology that allows self priming and run dry capabilities while maintaining a constant flow rate regardless of changes in viscosity and pressure These pumps maintain performance over time and are Atex certified for use in potentially dangerous environments with the ability to run dry for up to six minutes Available in seven sizes AZ AD A6 A12 A18 A31 and A55 Mouvexs A Series pumps have maximum speeds of 600 rpm and can handle temperatures up to 302 degrees The pumps come with a variety of connection types and options including the availability of both Mouvex or standardized mechanical seals to help expedite installations www mouvex com Schurco Slurrys V Series model vertical slurry pump does not require lower bearings external sealing or cooling water The V Series pumps can also run completely dry with no adverse consequences to equipment Schurco Slurry created a robust design for its V Series pumps Large passages on the impeller mean large chunks of rock can easily pass through it or if that is undesirable upper and lower strainers can prevent oversized material from entering the pump Because the pump sits down in a sump users can direct effluent and overflow process streams into a belowground sump or vault for collection Additionally the V Series pumps range in capacity from flow rates as low as 30 gallons per minute in the companys 15 in discharge pump to 6000 gallons per minute in its 10 in discharge pump www schurcoslurry com Slurry pumps capable of running dry Motor brakes eliminate wear on surfaces Force Control Industries MagnaShear motor brake provides longer service life in crane applications especially those with frequent start stop cycles Oil shear technology transmits torque between lubricated surfaces eliminating wear on friction surfaces A fluid recirculation system dissipates heat decreasing heat buildup which can be a common problem in dry braking systems The MagnaShear motor brakes work best for applications where the motor is reversed such as cranes winches hoists conveyors and railcar spotters The oil shear technology has a cushioned stop which reduces shock to the drive system to extend service life of downstream components The brakes are impervious to moisture dirt and dust www forcecontrol com A Leader in Mining Construction Since 1924 Slopes Tunnels Access Ventilation Shafts Initial Mine Development Highwall Stabilization Gunite Shotcrete Storage Bunkers Portals Canopies www cowin co com 205 945 1300 44 PIT QUARRY October 2015 www pitandquarry com
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