Ball valve seat suitable for top of hot-charging furnace

一种适用于热装炉炉顶的球阀阀座

Abstract

The utility model belongs to the technical field of blast furnace iron-making equipment and particularly relates to a ball valve seat suitable for the top of a hot-charging furnace. The ball valve seat mainly comprises a flange and a valve plate and is characterized in that a nitrogen passage a and a cooling water passage a are arranged on the conical ring of the valve plate; a nitrogen inlet and a plurality of nitrogen outlets a are formed in the nitrogen passage a; the nitrogen outlets a are uniformly distributed on one side of a soft seal ring; a cooling water passage b and a nitrogen passage b are arranged on the outer circular ring of the valve plate; nitrogen inlet and a plurality of nitrogen outlets b are formed in the nitrogen passage b, wherein the nitrogen inlet is communicated and connected with the outside through a pipeline, and the nitrogen outlets b are uniformly distributed on one side of the soft seal ring along circular nitrogen passage b and located below the soft seal ring. The ball valve seat adopts soft seal, ensures the sealing effect, and reduces emission of noxious gas. Meanwhile, the ball valve seat can enable the soft seal to be durable and hard to corrode, thereby prolonging the service life.
本实用新型属于高炉炼铁设备技术领域,具体涉及一种适用于热装炉炉顶的球阀阀座,它主要由法兰和阀板构成,其特征在于:所述阀板的锥形环上设有氮气通道a和冷却水道a;氮气通道a上设有一个氮气进口和多个氮气出口a,多个氮气出口a均匀分布在软密封圈的一侧;所述阀板的外部圆环形上设有冷却水道b和氮气通道b;所述氮气通道b上设有一个氮气进口和多个氮气出口b,所述氮气进口通过管道与外界连通连接,所述多个氮气出口b沿氮气通道b环形的方向均匀分布在设有软密封圈的一侧,并且位于软密封圈的下方。该阀座采用软密封,保证密封效果,减少有害气体排放;同时该阀座还可以使软密封持久耐用,不易被腐蚀,延长使用寿命。

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