Production of underground flue gate valve has been completed successfully

We have successfully shipped the underground flue gate valve we supplied to a steel company.

Nanyuan Intelligent confirmed the working condition with the customer at the beginning, and then the technical department provided the valve scheme quickly and accurately according to the working condition.

This project is to add a new gate valve. The original gate valve has leakage problems and is not easy to re-seal on the basis of the original valve, so it needs to add a new valve. Each coke oven has two underground flue, and each underground flue needs a new underground flue gate valve. After the addition of the gate valve, the original valve shall remain normally open. The customer requires that each part of the underground flue gate valve should be designed to withstand the change of flue gas temperature from normal temperature to 350℃, without damage, adhesion, crimping or leakage, according to ≤2% leakage. According to the number of flue openings and the design parameters of underground flue, the intelligent technology Department of the South Courtyard determined the size of the gate valve. This batch of flue gate valves are dual air and electric gate valves, equipped with hammer, electric hoist and air storage tank. The valve is normally closed. This valve is mainly operated by pneumatic, when the pneumatic device can not work, then use electric operation. In order to ensure the sensitivity of the RAMS during operation, the RAMS are divided into two RAMS, and each ram is flexible and free from jamming when lifting up and down. At the same time, a sealing slideway is provided in the body frame cavity to ensure the sealing effect of the gate and reduce the shaking of the gate in lifting. In order to prevent flue gas leakage of the gate during lifting, it is required to install a seal on the upper part of the body frame.

This kind of flue gate valve can solve the problem of fast control of flue gas pipeline in the case of accidents, ensure timely and efficient handling of accidents, and avoid greater economic losses; Also can solve the problem of relying on manpower to control the valve positioning, greatly reducing the labor intensity of the operator.