| 摘要 |
<p>A process for industrial production of stabilized aggregates comprises the folowing sequence of operations : mechanical reduction by nibbling machine, calibration, heat treatment in a rotary furnace at a decreasing temperature between 800 DEG and 75 DEG C, chemical treatment by impregnation-absorption-precipitation by successive actions on the product while still hot, with a soluble calcium salt and a silicate, followed by drying and stabilization. The installation comprises a primary mechanical station (4) for reduction of wood which feeds a regulating buffer-silo (7) with fines recovery, a heat treatment station (9) with rotary furnace, followed by a station for subsequent mechanical treatment by crusher-defibrator (37), and a station for chemical treatment in a double pulverizing mixer (57), and a final post for complementary treatment for specific application and drying before bulk storage or sacking. The invention is applicable in the building industry, agriculture and horticulture, and in varrious industries and related sectors.</p> |
