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Inerts Separators provide clean MSW

These Inerts Separators are designed for the removal of glass, grit, dirt, non-ferrous metals and other non-combustibles from screened MSW. The S-30 separator is the largest model available with a capacity of 25 tons/hour of two-inch trom-mel undersize material and will handle the minus two-inch output from a line processing 100 tph of raw MSW. Smaller capacity machines are also available.

The separation is made on an inclined, perforated surface, which is vibrated with a conveying motion. Fluidizing air is blown through the surface, creating an air slide for the light fraction, while the vibration causes the heavier inerts fraction to move upslope away from the light fraction discharge. Because the light fraction does not have to be entrained in an air stream, as in a simple aspirator or “air knife,” the risk of entrainment of fine inerts such as glass and sand, is eliminated, with a consequent significant improvement in separation efficiency.

Sixty percent of the non-combustibles in a raw MSW stream can be concentrated in the 20 percent that will pass a two-inch diameter hole in the primary trommel. But of this 20 percent, as much as 50 percent will be combustible material, the balance consisting of highash non-combustibles, including as much as 90 percent of all the incoming glass, along with dirt, stones and metals.

Inerts Seperator technology differentiates by density between non-combustible inerts and organic combustibles, with only the “grit” rejected. These Inerts Separators can increase the yield of combustibles, net of ferrous materials, to as much as 90 percent of the input, while reducing total ash to as little as 15 percent or less.