Self-adjusting lower valve head of crushed coal pressurized gasifier ash lock

Abstract

The invention relates to the technical field of ash discharging devices for the coal chemical industry field, in particular to a smashed coal pressure gasification furnace ash lock self-adjusting lower valve head, which is characterized by comprising a valve head, wherein a concave arc is arranged in the middle of the valve head; a valve rod is embedded in the concave arc and is matched with the concave arc through an arc end at the lower end; a flange is arranged corresponding to the periphery of the arc end in a surrounding way; a pressing cap is arranged on the periphery and the upper part of the flange; a pressing disc is arranged above the pressing cap; an ash retention cover is arranged on the peripheries of the pressing cap and the pressing disc. The structural design is reasonable, the direct position relationship of each part can be slightly adjusted, the tightness and the stability of the structure are ensured, and the service life of the product is greatly improved.

Description

technical field [0001] The invention relates to the technical field of ash discharge devices used in the field of coal chemical industry, in particular to an ash lock self-adjusting lower valve head of a crushed coal pressurized gasifier. Background technique [0002] The lower valve head of the existing crushed coal pressurized gasifier, the valve stem, the valve head and the ash cover are welded and fixed in one piece, and the positional relationship between the three parts cannot be adjusted relative to each other. When the valve head falls and is in sealing contact with the valve seat, If the valve head or the valve stem is slightly deviated, it will cause the valve head and the valve seat to fail to fit and seal. At the same time, the heavy pressure of the lower valve head will cause damage to the contact surface of the lower valve seat, which will cause the lower valve seat to be easily damaged, which will greatly affect the The working effect and working efficiency of...

AI Technical Summary

Problems solved by technology

[0002] The lower valve head of the existing crushed coal pressurized gasifier, the valve stem, the valve head and the ash cover are welded and fixed in one piece, and the positional relationship between the three parts cannot be adjusted relative to each other. When the valve head falls and is in sealing contact with the valve seat, If the valve head or the valve stem is slightly deviated, it will cause the valve head and the valve seat to fail to fit and seal. At the same time, the heavy pressure of the lower valve head will damage the contact surface of the lower valve seat, which will cause the lower valve seat to be easily damaged, which will greatly affect the The working effect and working efficiency of the crushed coal pressurized gasifier

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