A sealed valve for circulation of solid-liquid mixture

Abstract

The invention belongs to the technical field of sealing valves and specifically relates to a sealing valve used for solid-liquid mixture circulation. The sealing valve used for solid-liquid mixture circulation comprises a valve body and a sealing piece; a control module is arranged in the valve body; the control module comprises a rotating shaft, a telescopic rod, a No. 1 rack and a No. 2 rack; ahandle is arranged at the upper end of the rotating shaft; the telescopic rod is vertically arranged in the valve body; a No. 1 gear is rotationally connected to the upper end of the telescopic rod; aconnecting block is fixedly connected to the lower end of the telescopic rod; the No. 1 rack is fixedly connected to the interior of the valve body; the No. 2 rack is fixedly connected to the upper part of the telescopic rod; a No. 2 gear is engaged between the No. 2 rack and a rack structure at the lower part of the telescopic rod; the No. 2 gear is connected to the interior of the valve body through a rotating shaft; the telescopic rod is connected with the sealing piece through a shear fork mechanism; and a groove is formed in the sealing piece. According to the sealing valve used for solid-liquid mixture circulation, a buffering effect on an impact force of a mixed material in a passage is realized through the slowly straightened sealing piece so that an unloading effect is realized to prevent the sealing valve from being damaged due to long-time use; and therefore, the sealing effect of the valve is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of sealing valves, in particular to a sealing valve for the circulation of solid-liquid mixture. Background technique [0002] The valve is a standard part commonly used in the connection of pipe fittings. It controls the flow of two or more pipes and plays the role of interception and diversion. The existing valve structure is simple, and the gap between the valve core and the valve body becomes smaller after long-term use. The larger the size, the lower the sealing performance, resulting in the leakage of liquid in the pipeline. [0003] The sealing form of the valve is divided into two forms: hard seal and soft seal. The soft and hard seals of the valve sealing surface are mainly based on the fluid medium, temperature and pressure to be transported. The sealing surface of the valve that contains solid particles, wears and the temperature is higher than 200 degrees is sealed with a hard seal. [0004] Th...

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Problems solved by technology

[0006] In order to make up for the deficiencies of the prior art, the present invention proposes a sealing valve for the circulation of solid-liquid mixture. The present invention is mainly used to solve the problems that the existing sealing valve is laborious to open and the unloading effect is not good.

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