FIELD: production of coal bricks. SUBSTANCE: frothing device uses a hollow cylindrical casing with two inlet connections for feeding of binder and frother, mixing nozzle and mixing chamber with an outlet hole located inside the casing and aligned with it. Device is furnished with an additional chamber installed on the side of the mixing chamber outlet hole. The remote wall of the additional chamber is made as a reflector, which changes the direction of flow of frothed material. The reflector can adjust the volume of the additional chamber and angle of reflector inclination. EFFECT: improved design. 2 cl, 1 dwg
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