| 摘要 |
<p>In natural substrate or fertilizer materials such as sphagnum, coir dust or poultry manure seeds and other impurities can occur which can be neutralized by heat treatment. Heat treatment is effectively commenced in a kiln (8), which is interconnected with a station (10), and is led further to a heat insulated tunnel (38) wherein the period of heat treatment can be prolonged essentially without additional energy consumption, and the material flow is led through a transportation system substantially closed in relation to the surroundings, and which comprises a cooling zone (42), in which the material is cooled by blow-through with filtrated air, an admixing station (12) in which desired fertilizer substances and microbiological matter are added to the material flow, and a delivery zone or station (16), in which the material is dosed to closed transportation containers, e.g. closed sacks.</p> |
