C - Chemistry – Metallurgy – 05 – F
Patent
C - Chemistry, Metallurgy
05
F
C05F 3/00 (2006.01) C05F 3/06 (2006.01) C05F 11/00 (2006.01) F26B 21/00 (2006.01) F26B 25/00 (2006.01)
Patent
CA 2064700
ABSTRACT OF THE DISCLOSURE In natural substrate or fertilizer material such as sphagnum, coir dust or poultry manure seeds and other impurities can occur which can be neutralized by heat treatment. By the invention is provided a particularly effective treatment in that the material after passage of a flow-through kiln (8) is led further to a heat insulated tunnel (38), such that 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. It is hereby secured that a material, which has been fully pasteurized in the kiln in an economical manner, is not contaminated or infected before delivery, and that the additives at the current production can be added after a controlled cooling of the material, such that they occur with full utility value. The quality and uniformity of sphagnum substrate will be highly improved by the treatment.
Clausen Hans Jacob
Marks & Clerk
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