Material discharging and air locking device capable of automatically compensating abrasion of sealing surface

Abstract

The invention relates to a material discharging and air locking device capable of automatically compensating the abrasion of a sealing surface. The device provided by the invention comprises a lower valve body, an upper valve body, a wedge type sealing sleeve and a bowl type inserting plate, wherein the wedge type sealing sleeve is arranged outside the upper valve body; the bottom of the wedge type sealing sleeve is a wedge surface; the wedge surface is in contact with the bowl type inserting plate to realize the sealing; the shape of the cross section of the bowl type inserting plate is L-shaped, and the ends of the two sides of the L shape are in a circular arc shape; the sealing structure of the bowl type inserting plate and the wedge type sealing sleeve is in a line contact mode; and the line contact part is positioned above the plane of the material discharging opening of the upper valve body. The material discharging and air locking device has the advantages that (1) the wedge type sealing sleeve and the bowl type inserting plate are adopted, and the sealing contact surface is an inclined surface and can be automatically compensated after the abrasion, so that the sealing property is good and the service life is long; (2) the wedge surface of the wedge type sealing sleeve is not in contact with a material, so that the sealing property is reliable; and (3) the wedge type inserting plate is supported by a carrier roller so as to move flexibly. The device is widely applied to equipment, devices or systems with the gas discharging and gas locking requirements, such as dust cleaning equipment, dust falling equipment, pneumatic transmission devices and the like.

Description

Technical field [0001] The invention relates to a discharge air lock device capable of automatically compensating the wear of the sealing surface, which is widely used in equipment, devices or systems that require discharge air lock, such as dust removal equipment, dust reduction equipment, pneumatic conveying devices, and the like. Background technique [0002] In the prior art, dust removal equipment, dust suppression equipment, pneumatic conveying devices or systems use rotary format discharge valves, double-layer flip-type ash discharge valves, double-layer ball valves, and double-layer flapper valves to discharge materials from the system. Instead of letting the gas enter the system from the outside or the gas in the system leak out, so that the system continues to work, but these sealed valve body structures have shortcomings. [0003] Rotary format discharge valve and double-layer plug-in valve cannot be completely sealed due to the gap between their moving parts and fixed p...

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