FIELD: motor road construction, particularly devices for hot bituminous concrete mix preparation.
SUBSTANCE: method for bitumen oxidation optimization in working boiler involves taking bitumen from working boiler through sucking pipe in each working cycle with the use of continuously operating bitumen pump having inlet linked to bitumen metering device through main three-way valve during bitumen metering or to bitumen return pipeline during bitumen return into boiler; connecting submersible discharge device to bitumen return pipeline through hose; securing discharge device outlet to sucking pipe of bitumen pump; covering bitumen surface inside working boiler with heat-resistant liquid not reacting with bitumen and having density considerably less than that of bitumen.
EFFECT: increased efficiency.
1 dwg
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