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Lower sealing valve at top of bell-less blast furnace

A technology of material-free bell and sealing valve, which is applied in the field of blast furnace smelting, can solve the problems of the sealing performance of the sealing valve under the influence, easy to slip out of the valve cover, etc., and achieve the effect of increasing the service life, ensuring the sealing performance and reducing wear

Inactive Publication Date: 2013-09-25
SUZHOU CITY JIANJUN TEXTILE MACHINERY PARTS FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The rubber sealing ring is matched with the valve cover only by elastic deformation, and there is no device to fix the rubber sealing ring. It is easy to slip out of the valve cover during use, thus affecting the sealing performance of the lower sealing valve of the bellless blast furnace roof.

Method used

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  • Lower sealing valve at top of bell-less blast furnace
  • Lower sealing valve at top of bell-less blast furnace
  • Lower sealing valve at top of bell-less blast furnace

Examples

Experimental program
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Effect test

Embodiment Construction

[0016] The present invention is described below in conjunction with accompanying drawing.

[0017] as attached image 3 The lower sealing valve of a bellless blast furnace roof shown in the present invention includes a valve seat 1, a valve cover 2 and a rubber sealing ring 3, and the valve cover 2 is provided with a rubber sealing ring 3. The rubber sealing ring 3 extends out of the valve cover 2 and contacts the valve seat 1, the contact surface of the valve seat 1 and the rubber sealing ring 3 is a spherical surface, and the valve cover 2 is provided with a groove 4; the cross section of the groove 4 It is in an inverted "T" shape; the section of the rubber sealing ring 3 is in an inverted "T" shape, and is installed in the groove 4; the valve cover 2 is also provided with a pressure ring 5 for pressing the rubber sealing ring 3; The pressure ring 5 is fixedly connected with the valve cover 2; the contact surface between the rubber sealing ring 3 and the valve seat 1 is an...

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PUM

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Abstract

The invention discloses a lower sealing valve at the top of a bell-less blast furnace. The valve comprises a valve seat, a valve cover and rubber sealing rings. The rubber sealing rings are disposed in the valve cover. The rubber sealing rings protrude from the valve cover and contact the valve seat. The contact surfaces of the rubber sealing rings and the valve seat are spherical surfaces. The valve cover is provided with grooves. The cross profiles of the grooves are inverted-T-shaped and the cross profiles of the rubber sealing rings are inverted-T-shaped. The rubber sealing rings are disposed in the grooves. The valve cover is also provided with compression rings used for compressing the rubber sealing rings. According to the lower sealing valve provided by the invention, the valve cover is provided with the grooves, the cross profiles of the grooves are inverted-T-shaped and the cross profiles of the rubber sealing rings are inverted-T-shaped, the rubber sealing rings are disposed in the grooves, the valve cover is also provided with the compression rings used for compressing the rubber sealing rings, and therefore the rubber sealing rings are prevented from easily sliding out of the valve cover, and sealing property of the lower sealing valve at the top of the bell-less blast furnace is guaranteed.

Description

technical field [0001] The invention relates to a lower sealing valve, in particular to a lower sealing valve for a bellless blast furnace top, which belongs to the technical field of blast furnace smelting. Background technique [0002] The bellless blast furnace roof can distribute the blast furnace in the form of ring, spiral, fan and fixed point, etc., and can flexibly distribute the charge to any area and point of the throat section according to the change of furnace conditions in the blast furnace production, so that It satisfies the needs of adjusting the upper part of the blast furnace to the greatest extent. The lower sealing valve of the bellless blast furnace roof is an important component of the bellless blast furnace roof equipment. It is used to seal the material tank and ensure the pressure operation of the blast furnace. The quality of its sealing performance directly affects the production capacity of the blast furnace. The structure of the lower sealing va...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B7/18
Inventor 翁杏根
Owner SUZHOU CITY JIANJUN TEXTILE MACHINERY PARTS FACTORY