A spent catalyst deoiling tank

By setting an embedded screen plate in the discharge port of the waste catalyst deoiling tank at the high temperature nitrogen zone, the problem of difficult discharge port design in the prior art is solved, and the stable discharge of catalyst and uniform nitrogen introduction are achieved, which improves the use effect and maintenance convenience of the device.

CN224475018UActive Publication Date: 2026-07-10SICHUAN HUADA JIAOYANG ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN HUADA JIAOYANG ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Filing Date
2025-08-04
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

In the existing waste catalyst deoiling tank, the mesh size in the bottom hollow structure design is smaller than the catalyst particle size, which makes it difficult to design the discharge port, affects the uniform introduction of nitrogen and the retention of catalyst, and affects the performance.

Method used

A discharge port is provided at the hollow bottom plate in the high-temperature nitrogen zone, and a sieve plate that can fill the complete mesh structure is embedded therein. Through the cooperation of the fixed frame, slider, U-shaped arm, connecting arm and limiting component, the sieve plate can be raised and lowered in a straight line to achieve stable discharge of catalyst and prevent interception without affecting the nitrogen gas flow.

Benefits of technology

This achieved stable catalyst discharge, ensured uniform nitrogen flow, improved the effectiveness and practicality of the device, and facilitated maintenance and screen plate replacement.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224475018U_ABST
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Abstract

This utility model discloses a waste catalyst deoiling tank, specifically relating to the field of waste catalyst deoiling technology. It includes a tank body with a scraper assembly inside, and three sets of discharge pipes arranged in a circular array at the top of the tank body. The bottom of the tank body has an opening with a perforated bottom plate installed at the opening. This utility model utilizes a discharge port located at the perforated bottom plate in the high-temperature nitrogen zone. A sieve plate, capable of filling the entire mesh structure, is embedded within the discharge port. With the cooperation of a fixed frame, slider, U-shaped arm, connecting arm, and limiting assembly, the connecting arm can drive the sieve plate to rise and fall stably in a straight line. When descending, the sieve plate opens the discharge port, allowing the deoiled catalyst particles to be discharged. Conversely, when rising, the sieve plate embeds itself into the discharge port to close it. Simultaneously, the sieve plate completely fills the perforated bottom plate, thus not affecting the nitrogen flow and preventing catalyst retention, greatly ensuring the effectiveness of the device.
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