| 摘要 |
FIELD: construction.SUBSTANCE: method to manufacture acoustic panels includes preparation of a water suspension from mineral wool, a binder, a filler and target additives. The produced suspension in the form of a raw mat is applied onto a continuously moving tape with a net. It is pressed with the help of vacuum. Drying and finishing treatment is performed. At the same time mineral wool for the suspension is additionally manufactured. After pressing moisture of the raw mat makes 55-60%. Before drying the raw mat is cut, drying is carried out in a multi-level moulding drying furnace with three heating zones, accordingly: 270-280°C, 330°C and 240°C. At the same time variation of temperature in the cross profile of the furnace makes +/-5°C, and moisture of panels at the outlet from the moulding furnace is not more than 0.5%.EFFECT: ecological compatibility of the method, high efficiency, high acoustic and operational characteristics of finished items.16 cl, 1 tbl, 1 dwg |
