Oxidation drying system with nitrogen pulse purge

By introducing nitrogen pulse purge function into the oxidation drying system, the problem of material accumulation at the spiral conveyor port is solved, the stability of system operation is improved, and the operating state is achieved without regular cleaning.

CN112718725BActive Publication Date: 2025-03-25YISHENG DAHUA PETROCHEM
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Patent Information

Application Number
CN202011602679.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-12-29
Publication Date
2025-03-25
Estimated Expiration
2040-12-29

AI Technical Summary

Technical Problem

In existing oxidation dryers, the bearings at the screw conveyor ports are prone to accumulation of materials, which affects the dryer's circulating carrier gas flux, leads to an increase in the internal pressure of the system, affects stable operation, and requires regular cleaning of accumulation of materials.

Method used

An oxidation drying system with nitrogen pulse purge function is designed, and a nitrogen pulse purge is performed on the spiral conveyor port through a nitrogen pulse purge mechanism to reduce the accumulation of material at the hanging bearing.

Benefits of technology

Through nitrogen pulse purge, the accumulation of material at the spiral conveyor port is effectively reduced, the stability of system operation is improved, and the need for regular cleaning is avoided.

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Abstract

The invention discloses an oxidation drying system with a nitrogen pulse purging function, which relates to the technical field of gas oxidation drying, and comprises an oxidation dryer unloading chimney, a dryer circulating carrier gas washing tower, and a nitrogen pulse purging mechanism; a spiral conveying port is provided on the side wall of the oxidation dryer unloading chimney, and the spiral conveying port is connected to a spiral conveying pipe a, and the spiral conveying pipe a is connected to a spiral conveying pipe b, and the spiral conveying pipe b is connected to the dryer circulating carrier gas washing tower; a plurality of unloading ports for connecting with an oxidation filter are provided on the oxidation dryer unloading chimney; and the nitrogen pulse purging mechanism is connected to the spiral conveying port. The oxidation drying spiral conveying port can be purged with nitrogen pulses, so as to reduce the accumulation of materials at the hanging bearing and make the system run more stably.
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