Compact valve box device for rotating upper sealing valve of blast furnace

Abstract

The invention relates to a compact valve box device for a rotating upper sealing valve of a blast furnace. The valve box and the sealing valve are integrally connected with a material tank of the blast furnace after being installed, the valve box consists of a flange valve box connecting frame and a sealing box body, the flange valve box connecting frame is connected with the sealing valve, the flange valve box connecting frame is arranged at the outer side of the sealing box body, the sealing box body is a partial cone body capable of adapting to the work space of the rotating sealing valve,and a round valve cover of the rotating upper sealing valve is arranged in the sealing box body and can be rotated to be opened in the sealing box body according to the set track along with an assembly component of the valve cover of the sealing valve so that material inlet flows enter the valve box or tightly press and seal a material inlet in a sealing closed position. The valve box device can be precisely matched with the rotating upper sealing valve of the blast furnace and can be integrally installed with the material tank after being combined into a whole with the sealing valve, safety and reliability are realized, the installation and the maintenance are convenient, the integral height of the blast furnace can be effectively reduced, the cost is low, and the manufacture is simple and convenient.

Description

technical field [0001] The invention relates to a metallurgical ironmaking blast furnace device, in particular to a valve box device for a rotary upper sealing valve of the blast furnace. Background technique [0002] The upper sealing valve is one of the important equipment on the blast furnace ironmaking production line, its main function is to seal the blast furnace gas in the smelting process. Furnace material falls from the furnace top to the material tank through the conveying belt. When smelting starts, the upper sealing valve is closed by driving the oil cylinder; During the smelting process, the sealing valve can prevent the blast furnace gas in the material tank from leaking out. [0003] In the traditional design, the rotary sealing valve is generally connected to the tank shell through a flange. This design has the following disadvantages: First, because the rotary sealing valve and the tank are manufactured separately, it is difficult to install the sealing val...

AI Technical Summary

Problems solved by technology

[0003] In the traditional design, the rotary sealing valve is generally connected to the tank shell through a flange. This design has the following disadvantages: First, because the rotary sealing valve and the tank are manufactured separately, it is difficult to install the sealing valve on site.

[0005] However, at present, the sealing valve and valve box that can better solve the above problems have not been applied, so corresponding research in this area is urgently needed

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