Where is the vent of fermentor?

An air inlet/outlet is arranged above the inner and outer pipes of the fermenter.

Drum fermenter is mainly used in the manure treatment process of farms, which changes the traditional pool fermentation process and improves the production efficiency. The drum-type stirred fermentation tank comprises a frame, idler rollers and a driving device installed on the frame, wherein the idler rollers are provided with rollers which can rotate in the circumferential direction under the driving of the driving device, and a conveyor and a receiving groove located in the middle position of the rollers are arranged in the rollers; The conveyor includes a auger, and both ends in the drum are respectively provided with ventilation shells.