3-Stage Sampling System

About 3-Stage Sampling System

The 3-Stage Sampling System is typically utilised with the Conventional Cross Stream Sampler which produces a very large primary sample increment and requires an additional stage of processing to reduce the sample to a manageable size. This arrangement includes a sealed primary sample receiving hopper, primary belt feeder, secondary sampler, secondary feeder, sample crusher, tertiary sampler, sample collector and reject handling system.

The primary belt feeder feeds the primary sample increments to the secondary sampler. The secondary sample increments are fed via the secondary feeder to the sample crusher where the sample increments are typically reduced to a 4-mesh product. The product from the crusher is gravity fed to a tertiary sampler which takes a tertiary increment. The tertiary increment is gravity fed to a save sample container. The reject handling system returns the reject from the secondary sampler and tertiary sampler to the main conveyor for most installations.