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Valve structure and independent air-tight seal double-layer dust unloading valve

A kind of ash discharge valve and air sealing technology, applied in the direction of lift valve, valve device, engine components, etc., can solve the problems of air leakage of the valve body and the spool ash discharge valve, damage to the negative pressure environment of the equipment, easy wear of the valve core, etc. The effect of low maintenance cost, good air tightness and long valve core life

Active Publication Date: 2015-11-25
ZHONGYE-CHANGTIAN INT ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to solve the problem that the spool of the existing valve structure is easy to wear and the residual dust between the valve body and the spool causes air leakage from the ash discharge valve, destroys the negative pressure environment of the equipment, and causes a large amount of leakage and energy waste.

Method used

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  • Valve structure and independent air-tight seal double-layer dust unloading valve
  • Valve structure and independent air-tight seal double-layer dust unloading valve
  • Valve structure and independent air-tight seal double-layer dust unloading valve

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Effect test

Embodiment 1

[0027] Such as figure 2 As shown, a valve structure provided by Embodiment 1 of the present invention includes a valve core and a valve body. The valve core is installed in the valve body. The elastic seat 15 between the cover 13 and the air seal cone 14, the shape of the leakproof cover 13 is bowl-shaped, and the air seal cone 14 is a truncated conical shape; the valve body includes an inner seat 11 and an outer seat 12, and the shape of the inner seat 11 is Ring plate shape, the shape of the outer seat 12 is cylindrical, the inner seat 11 is connected on the inner wall of the outer seat 12; the leak-proof cover 13 is located below the inner seat 11, and the cover edge of the leak-proof cover 13 is in contact with the inner seat 11 to cut off the Material flow, the lower end surface of the outer seat 12 is in contact with the conical surface of the air seal cone 14. to shut off the gas flow.

[0028] Of course, the leak-proof cover can also be replaced by other types of le...

Embodiment 2

[0032] Such as image 3 As shown, the independent air-tight double-layer ash unloading valve provided by the second embodiment of the present invention includes the ash box 4, the upper valve actuator 9, the lower valve actuator 8, the discharge box 7 and the two valve structures in the first embodiment , are the upper valve 3 and the lower valve 6 respectively, the upper valve 3 is located in the ash box 4 and connected to the top of the ash box 4, and the upper valve actuator 9 is arranged on the side wall of the ash box 4 and connected to the bottom of the upper air seal cone 33, so as to Control the opening and closing of the upper valve 3; the lower valve 6 is located in the discharge box 7 and connected with the top of the discharge box 7, and the lower valve actuator 8 is arranged on the side wall of the discharge box 7 and connected with the bottom of the lower air seal cone 65 to Control the opening and closing of the lower valve 6; the top of the discharge box 7 is c...

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Abstract

The invention relates to the technical field of metallurgical equipment, in particular to a valve structure and an independent air-tight seal double-layer dust unloading valve. A valve element of the double-layer dust unloading valve comprises an anti-leakage part on the upper layer, an air seal part on the lower layer and an elastic supporting part connected between the anti-leakage part and the air seal part. A valve body of the double-layer dust unloading valve comprises an inner base and an outer base. The inner base is connected to the inner wall of the outer base. The anti-leakage part is located below the inner base. The edge of the anti-leakage part makes contact with the inner base so as to cut off material flow. The air seal part makes contact with the outer base so as to cut off air flow. Corresponding functions of the anti-leakage part and the air seal part are independently brought into play, the air seal part is free of interference of solid materials even when the anti-leakage part is abraded or not well sealed due to other reasons, sealing is tight, and the whole valve body is high in air tightness, and air leakage is avoided.

Description

technical field [0001] The invention relates to the technical field of metallurgical equipment, in particular to a valve structure and an independent air-tight double-layer ash discharge valve. Background technique [0002] The equipment used in the sintering field of the existing metallurgical industry, such as the large flue of the sintering machine, the air box of the ring cooler, and the environmental protection negative pressure dry dust removal device, needs to work in a negative pressure environment. It is necessary to ensure that the internal environment of the equipment is not connected to the atmosphere, that is, to ensure that the emptying process is carried out in a sealed state. [0003] At present, double-layer ash discharge valves with mushroom head seals are commonly used in the sintering field. Due to the special working conditions of the exhaust system of the sintering machine, when the valve is closed, a small amount of dust from the ash storage tank is of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/00F16K1/44
CPCF16K1/00F16K1/44
Inventor 刘克俭戴波张震
Owner ZHONGYE-CHANGTIAN INT ENG CO LTD
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