| 摘要 |
<p>An apparatus, ramp and system are disclosed for spreading a flowing material, the apparatus comprising an input, an output lower than the input, and a rotor or other such element therebetween for intercepting and controlling a downward flow of the material between the input and the output. In particular, the apparatus, ramp and system may be used to controllably spread various flowing materials on the ground or in a field, such flowing materials being generally characterized to include a sludge, a liquid, a granular composition, a semi-liquid, a powder and other such materials. For agricultural applications, the disclosed apparatus, ramp and system may be used with, for example, liquid, semi-liquid, dry and suspended powder fertilizers, granular fertilizers, manure, compost, organic sludge as well as seeds and other such agricultural materials. By controlling an output of the apparatus, ramp and system, a controllable amount of material may be spread across selected areas.</p> |
