FIELD: technological processes.
SUBSTANCE: invention relates to production of foamed granules, which may be used in drilling works, in construction, paint and varnish and other industries. Furnace for foaming granules comprises a burner and a device for input of raw granulated material. Furnace is installed vertically and is functionally divided into a zone for pre-heating of raw granulated material, a foaming zone in suspended condition and a cooling zone of foamed granules in suspended condition. Burner is installed in the lower part of the furnace, the device for input of raw granulated material is placed as capable of feeding raw granulated material to the zone of furnace pre-heating. Furnace walls in the foaming zone are equipped with a cooling system.
EFFECT: invention simplifies process of foamed granules production, increases efficiency of the process and quality of the finished product.
4 cl, 1 dwg
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