Enamel reaction tank orifice protective reparation method

Abstract

The invention discloses an enamel reaction tank orifice protective reparation method comprising the following steps: a pup-joint with a fixed flanged rim on one end and with a size same or slightly smaller than the inner diameter of the orifice of the enamel reaction tank is manufactured; the pup-joint with the fixed flanged rim is inserted into the orifice from outside to inside through the orifice of the enamel reaction tank; and a flange is threaded into the other end of the pup-joint and is fastened. If an enamel-broken phenomenon is found on the orifice of the enamel reaction tank, an anti-corrosive sealant is applied on the flanged rim on the side close to the orifice, and on the outer side of the pup-joint; sealant is added at the gap between the pup-joint and the inner side of the orifice; and the flange is threaded into the threaded end of the pup-joint and is fastened. With the protective effect of the pup-joint, and the anti-corrosive sealing effect of the flange and the anti-corrosive sealant, even if enamel at the orifice is broken, orifice corrosion can be effectively prevented. Therefore, with the method provided by the invention, service life of the enamel reaction tank can be greatly prolonged.

Description

technical field [0001] The invention relates to the technical field of chemical enamel reaction tanks, and more specifically relates to a method for protecting and repairing nozzles of enamel reaction tanks. Background technique [0002] Enamel reaction tank is one of the important equipment in chemical production, widely used in petrochemical, dye, rubber, medicine, pesticide and other fields. Enamel reaction tanks are used to complete chemical processes such as hydrogenation, alkylation, nitration, sulfonation, polymerization, and condensation. The nozzle part of the enamel reaction tank is prone to broken porcelain, which affects the product quality and the service life of the enamel reaction tank, and even causes the entire enamel reaction tank to be scrapped. There are two general protective technologies for the nozzle of the existing enamel reaction tank: one is to repair the broken porcelain of the enamel reaction tank with glue; ) or polytetrafluoroethylene sleeve ...

AI Technical Summary

Problems solved by technology

However, there are certain defects in the protection technology of the nozzle of the existing enamel reaction tank: the enamel repair technology can only be an emergency treatment measure for the broken enamel reaction tank, and cannot fundamentally prolong the service life of the enamel reaction tank

The existing polypropylene (PP) or polytetrafluoroethylene inserts are only inlaid with protective measures with flanging and short connection at the nozzle, and materials or corrosive gases are still easy to enter the gap between the insert and the nozzle, further corroding Nozzle, it cannot really protect the broken enamel reaction tank

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