Pumps and Pumping

Slope of Flotation Slurry Launders for Froth Flow

Launders should have high enough velocities to prevent particles from settling, or if they fall to the bottom, to keep them rolling and sliding. The depth of water should not be much over the diameter of the largest rolling particles. For concentrates and heavy gangues slopes should be increased 25—100%. SPRAY WATER IN LAUNDERS:—While it is … Read more

Mining Camp Fresh Water System

Introduction to an EXAMPLE Fresh Water System Water is pumped from the fresh water well to the camp tank which provides pressure and storage capacity for the camp. The camp distribution system is located between the well and the camp tank, such that the pipe between the camp and the tank may have flow in … Read more

Plant Tailings & Reclaim Process Water Startup & Shutdown Procedure

EXAMPLE Operation and Preparation for Start up Ensure the mill is prepared to start up at the design throughput and range of solids content. Walk the tailings line to check for damage to the pipe or overhead wires. Open the sluice gate at the tailings spillage diversion. Ensure the tailings box is free of obstruction. Ensure … Read more

Plant Tailings & Reclaim Water System Operating Procedure

EXAMPLE Tailings System Tailings from the processing plant are collected in a common tails box and flow by gravity to the tailings pond. The tailings flow at a rate of 51.6 cubic meters per hour and 34% solids. The tailings line consists of five separate sections and each individual section is designed to suit its local topography. … Read more

Ball Mill Operation -Grinding Circuit Startup & Shutdown Procedure

Ball Mill and Grinding Circuit Preparation for Start-UP The following items must be checked before the equipment in the Grinding Circuit is started. Check the ore slot feeder for obstruction or hang—ups. Check the ball mill belt feeder for undue buildup of material. Check oil level in ball mill lube oil tanks. Also, check grease level … Read more

Grinding and Classification Circuit

Our EXAMPLE Grinding and Classification Circuit is designed to grind 500 tonnes of ore per day, operating 24 hours per day, with an availability of 95%.  This circuit will grind -5/8″ material from the Crushing Plant, classify the slurry in one of two cyclones, and pass 70% of the minus 200 mesh material to the … Read more

Troubleshooting an Overflowing Pump box

Troubleshooting an Overflowing Pump box

Here is an example, if there is a pump box over flowing. The effect is that the pump is overflowing. What we want to know is, what is the cause? Mechanical failure? Electrical? Perhaps an Airlock? First, go to the pump itself, remember the purpose of a pump is to deliver slurry from one point … Read more

Pumps & Pumping Tutorial Papers and Articles

What Constitutes HIGH ENERGY in centrifugal pumps Considerations in Hot and Cold Alignment and Couplings Harmonic Free Magnetic Soft Starters For Large Capacity High Voltage Induction and Synchronous Motors Driving Pumps and Compressors Corrosion in Pumps Short Course on Centrifugal Pump Operation for Operators Influence of Impeller Leading Edge Profiles on Cavitation and Suction Performance … Read more