The activation method of the Slep Furnace is a method of activating the steam and flue gas alternately. The SLEP Furnace is mainly composed of the furnace body, the regenerator, the water seal, the feeder and the chimney. It is suitable for the production of various kinds of granular carbon, the process conditions are stable, the quality of the product is uniform, the adsorption performance is good, the production of various advanced activated charcoal, big production capacity...