Tech Exchange

Waste Rubber Recycling Technology and Equipment

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Using thermolysis (heat decomposition), waste rubber such as tires can, with low environmental impact, be reduced to constituent, reusable elements. Technical or activated carbon and a fuel mix are the ultimate end products. The technology also is practical for recycling of other kinds of waste or scrap rubber, plastic/polyethylene packing, or other organic wastes. The process is fire- and blast-safe since it is run at low temperature.

Worn tires are chopped into 300- to 400-mm pieces and fed in batches to charge casks that are automatically conveyed to the charging chamber. The materials are then taken from the charging chamber to the thermolysis reactor, where they are exposed to heat for 90 minutes. At this stage, the rubber waste materials are thermally decomposed into gaseous and solid products. The gas products are sent from the thermolysis chamber to the separators to be cooled. Oil products of thermolysis are separated from water and supplied to the collector unit, and then poured to tanks. Ten percent of the collected oil is used to power the recycling plant; the noncondensable combustible gas is used to heat the reactor chamber.

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