Gas bleeding valve

1、Suitable for blast furnace top pressure equalizing system, used as furnace top gas pressure equalizing valve

2、Main technical characteristics of pressure-equalizing and bleeding valve

（1）The double-layer sealing of the hard alloy and the silicon rubber is adopted, the sealing performance is good, the work is reliable,

（2）The sealing surface is wear-resistant alloy with long service life and scour resistance.

（3）The valve is provided with a manhole for repair

（4）Transmission mode: hydraulic drive

Pressure equalizing and pressure sharing valve for top feeding system, there are two structures: one is straight stroke, hydraulic drive, cast steel structure, soft and hard seal, the other is angular stroke, hydraulic drive, full welding structure, model lp745y.

In general, the valve is sealed by medium pressure. Under special circumstances, the valve is sealed by heavy hammer or hydraulic cylinder

The valve can be used for opening and closing the power distribution winch or the hydraulic transmission

Non-counterweight top release valve used in blast furnace ironmaking, including valve body, valve cover and driving device. The valve body consists of a seat, a middle shell and a lower shell. The opening and closing device of the bonnet is composed of large, small rotating arm and its support and the connecting plate between them. The bonnet is connected with the large rotating arm hinge, the large rotating arm and its large support hinge is connected, the small rotating arm and its small support are connected, and the large rotating arm and the small rotating arm are connected with the connecting plate hinge. When the two pin shaft holes connected by the connecting plate and the large and small rotating arms are in a vertical position, the opening and closing device is self-locked and the valve cover is closed. When the driving device pulls the small rotating arm, the two pin shaft holes connected by the connecting plate and the large and small rotating arms deviate from the dead point position, and the small rotating arm drives the connecting plate, thus pulling the large rotating arm swinging and the valve cover being opened. The non-weight self-locking release valve makes use of the position relationship between the rotating arm and the connecting plate to realize the rapid opening of the valve cover, ingenious structure, light weight, small starting power, safety, economy and prolongation of service life.

The butterfly type diffusing valve is composed of a valve body, a butterfly plate, a connecting rod, a exhaust tube and the like. the butterfly plate is rotated by the manual lever mechanism or the electric device to achieve the opening and closing of the valve, so that the air supply to the blast furnace is reduced or completely stopped without stopping the blower, and the excess gas pipe is discharged into the atmosre

The valve of the bleeding valve is installed on the cold air pipere the hot-blast stove. For reducing or completely stopping the supply of air to the blast furnace without stopping the operation of the blower. The valve is provided with a noise butterfly type diffusion valve is specialized in the production of special metallurgical valves when the air is released, so that the excess gas can be easily discharged into the atmosre from the pipean>

The flue gas release valve has a hinged four-bar mechanism arranged on the valve body support and equipped with a driving hydraulic cylinder and a pretightening spring pressure device. The guide rod and the arranged spring and the upper and lower groups of srical matching pairs are connected to the valve cover at the front end of the rotating arm of the connecting rod mechanism. A srical hard sealing pair composed of surfacing cemented carbide and a soft sealing pair composed of a silicone rubber ring are arranged on the sealing stop of the valve cover and the valve body. The utility model has the advantages of compact structure, flexible operation of the mechanism, good neutrality and sealing between the valve cover and the valve body, small impact and friction force in with the sealing surface, and long service life of the valve.

Gas release valve is suitable for gas, air and other gas pipes in metallurgy, chemical industry, building materials and other industries. it can be used as cut off gas medium, and can also be used as gas discharge and release valve.