Heath & Sherwood 60" ARM^® Cross Belt Primary & Secondary Sampling System

Application:

When a Northern Ontario limestone quarry required modernization of the method for checking consistency of their final product they called upon Heath & Sherwood to design a system which would meet their exact needs. In the photo package below the old manual method and the new automatic mechanical method are both illustrated. The material is loaded onto a ship at a feed rate of 3,200 TPH by a 60 inch wide conveyor. The particle size is up to 2.25 inch therefore for proper sampling protocol the primary sampler cutter opening must be a minimum 6.75 inches. The primary sample increment is 120 lbs with each sweep of the stainless steel cutter.

Secondary Equipment:

The primary increment is transferred to a 12 inch feeder with capacity up to 5 TPH. When the non-blended product is loading the secondary sampling module uses a Secondary Cross Belt ARM^® -12 to take a 17 lbs increment of the material. The amount of product is controlled by the gate opening on the feeder and this will dictate the final sample quantity. When blended material is loaded the Secondary Cross Belt sampler is bypassed and a 3-stage 60 degree riffle divider is used to determine the final sample quantity. With the riffle the final sample quantity will always remain near the 15 lbs per primary increment. As shown in the photos the new installation is a vast improvement over the former system.

For further information please contact Luc Morin at Heath & Sherwood in Kirkland Lake, Ontario

At the Toll Free number: 1-888-Go-Sample (1-888-467-2675)