FIELD: mining engineering. SUBSTANCE: device has a tank with perforated pipeline 5 positioned inside at the bottom and a discharge valve. The tank is made with double walls for hot water recirculation and has electric water and air heating elements. Air heating elements are made in the form of tubes and are located between the walls of the tank in a spaced relation. Holes in pipeline 9 are made in parallel to each other along the axis at an angle of 40-45. The cross section area of the holes increases towards the discharge valve and the tank bottom. EFFECT: simplified processing and improved efficiency. 2 dwg
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Authors
Dates
1994-01-30—Published
1991-07-05—Filed