Mill Operator Interview Questions and Answers

Parameters in a Grinding circuit include particle size distribution, mill power consumption, and circulating load.

• Particle size distribution: Ensuring the desired size of particles is achieved through grinding.

• Mill power consumption: Monitoring the energy used by the mill to optimize efficiency.

• Circulating load: Managing the amount of material circulating within the circuit for proper grinding.

• Ore feed rate: Controlling the rate at which ore is fed into the mill for consisten...read more

The grinding circuit at my current company consists of a primary crusher, SAG mill, ball mill, and cyclones.

• The primary crusher reduces the ore to a manageable size for the SAG mill.

• The SAG mill grinds the ore to a finer size using large steel balls.

• The ball mill further grinds the ore to achieve the desired particle size.

• Cyclones are used to separate the ground ore from the water in the circuit.

• The final product is then sent to the flotation circuit for further processing.

Grinding is the process of removing material from a workpiece to achieve the desired shape and surface finish.

• To remove excess material from a workpiece

• To achieve the desired shape and dimensions

• To improve surface finish and accuracy

• To sharpen cutting tools

• Examples: grinding metal parts to precise measurements, sharpening drill bits