Fermentation device of bacillus amyloliquefaciens

The utility model relates to the technical field of microbial fermentation, and discloses a bacillus amyloliquefaciens fermentation device which comprises a floating assembly, a defoaming assembly and a net plate, the floating assembly and the defoaming assembly are arranged in the fermentation tank, and the screen plate is connected into the fermentation tank through the floating assembly; the floating assembly comprises a floating plate, the floating plate is located at the bottom of the net plate, and a defoaming brush in the defoaming assembly is located at the top of the net plate; and the defoaming brush is driven by a motor in the defoaming assembly to rotate at the top of the net plate. The floating component and the defoaming component are arranged in the fermentation tank, the screen plate is mounted in the fermentation tank through the floating component, and the floating plate arranged at the bottom of the screen plate can float the screen plate on the uppermost surface of fermentation liquor, so