FIELD: agriculture. SUBSTANCE: methane-tank has tank with feeding and discharging pipes, gas pipeline connected with gas bell. Bell is mounted so as to be capable to be lifted and rotated on fixed pipe with holes and fixed in the center of tank bottom and its upper part is held by braces. First cylinder of hydraulic gate is located in upper part of gas bell. Second cylinder is mounted on second pipe with holes and coaxially inserting in fixed pipe, forming clearance between the pipes. Second pipe upper and lower part have fixed mixing blades and lower part of second pipe has second braces. Gas bell is rests on cantilevers. EFFECT: apparatus allows to prevent biogas leakage and exercise mixing by bell rotation in lifted state. 2 cl, 2 dwg dwg
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