FIELD: road building. SUBSTANCE: apparatus has a case with a neck in its upper part to communicate with the atmosphere. Three-way cock and water dump cock are installed in the bottom of the case. A heat exchanger, tubular coil and secondary heat exchanger in the form of coaxial cavity placed between the heat exchanger and the case are installed inside. EFFECT: high efficiency. 4 cl, 1 dwg
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| DEVICE FOR PUMPING THICKENED PRODUCT OUT OF RESERVOIR | 1990 |
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| DRYING PLANT | 1992 |
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