FIELD: power industry.
SUBSTANCE: mechanism of gas removal from fuel hopper at filling though filling rotating hatch contains boiler body frame 1, fuel hopper 2, filling rotating hatch 3, gate valve 4 installed between flue channel 5 and fuel hopper 2. Gate valve 4 is installed perpendicular to panel 7 of filling rotating hatch 3 while gate 11 is fixed to it from inside and cab be rotated together with panel 7. Gate 11 has groove 14 at surface edge, which includes seat 12 of gate valve 4.
EFFECT: prevention of fuel gas entrapment to boiler house.
2 cl, 3 dwg
