| 摘要 |
<p>The invention relates to an appliance for aerating liquid manure, which aerating appliance possesses a downpipe 1, an airpipe 2 which is located within it, a motor 3 for rotating the airpipe, which motor is located on the upper end of the downpipe, and a propeller 4 which is located on the lower end of the airpipe and through whose blades 5 the air is arranged to be conducted from the airpipe to the liquid manure. In order to make the aeration more effective, the blades 5 in an aerating appliance in accordance with the invention have been located so as to extend obliquely downwards in relation to the airpipe 2. <IMAGE></p> |
