Patent ID: 7820429

Claim:
An equipment for dry fermentation, comprising a fermentation tank ( 1 ) for dry fermentation which includes a tank body ( 5 ) for accommodating materials, a flexible sealing membrane ( 7 ) for covering said tank body ( 5 ) and a tight fixing means ( 3 ) for hermetically covering said tank body ( 5 ) with said flexible sealing membrane ( 7 ), wherein: a. said tank body ( 5 ) is provided with a top opening ( 2 ) at its top part and at least one side opening ( 4 ) for loading and unloading materials at its side part; b. when the tank body ( 5 ) is covered hermetically by the flexible sealing membrane ( 7 ), said tight fixing means ( 3 ) makes the contact area ( 6 ) between the tank body ( 5 ) and the flexible sealing membrane ( 7 ) form at least one sealing contacting strip or at least one sealing line which is continuous and close in three-dimensional space so that the flexible sealing membrane ( 7 ) covers hermetically both of the top opening ( 2 ) and at least one side opening ( 4 ) for loading and unloading materials.