| 摘要 |
<p>PURPOSE:To obtain an organic fertilizer with promoted composting through contact with oxygen evenly by cutting and kneading under pressurized state a mixture of coarse organic materials regulated in moisture content to effect temperature rise followed by releasing under reduced pressure and then pulverization. CONSTITUTION:A mixture of livestock excreta and coarse organic materials such as grass, straw, rice hulls and wood chips is regulated in moisture content to 25-75wt.%, thus preparing a raw material. This material is then plunged through a port 4, being cut and kneaded under pressurized state by a screw press-feed means and cutting-kneading means provided in the first treatment tank 1 to effect temperature rise to 40-90 deg.C. Thence, the resulting material is fed to the second treatment tank 2 via an openable gate 3 to effect release from the pressurized state followed by further grinding with a rotary grinding edge.</p> |
