A protective device for an asphalt treatment process asphalt discharge outlet

By designing a sealing cover and baffle to separate the steam chamber, and combining the asphalt discharge outlet protection device with the scraper and nozzle assembly, the problem of steam diffusion during the cooling of liquid asphalt was solved, achieving both safety and resource recovery.

CN121518166BActive Publication Date: 2026-06-05INNER MONGOLIA STRAIT ENERGY GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INNER MONGOLIA STRAIT ENERGY GRP CO LTD
Filing Date
2026-01-15
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

In the asphalt processing, the vapor generated during the cooling of liquid asphalt can easily cause equipment vibration and explosion, and existing equipment cannot effectively protect against these risks.

Method used

An asphalt discharge outlet protection device was designed, comprising a sealing cover, an extraction pipe, and a baffle. It separates steam through a water seal and a negative pressure chamber, and, combined with a scraper and nozzle assembly, achieves steam condensation and water curtain protection, preventing steam diffusion and adhesion.

Benefits of technology

It effectively limits steam diffusion, prevents equipment vibration and explosion, improves safety, and enables the recycling of steam and wash oil, reducing the risk of asphalt adhering to the equipment.

✦ Generated by Eureka AI based on patent content.

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    Figure CN121518166B_ABST
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Abstract

This invention discloses a protective device for the asphalt discharge outlet in an asphalt treatment process. It includes a sealing cover installed on the discharge pipe at the bottom of an asphalt buffer tank. The bottom of the sealing cover is open and extends into an asphalt cooling pool. An extraction pipe is connected to the top of the sealing cover, and its outer end is connected to an external condenser. A partition is slidably mounted on the outer wall of the asphalt discharge pipe, dividing the sealed cavity into a negative pressure chamber and a steam chamber. Air vents are located along the periphery of the partition. A cylinder is mounted on the sealing cover. Sealing plates for blocking the air vents are mounted on the partition. An upper collar is fitted onto the asphalt discharge pipe. Each set of sealing plates is fixedly connected to the upper collar via a connecting rod. A driving structure is provided between the upper collar and the asphalt discharge pipe. When the partition moves upward, the driving structure drives the sealing plates to block the air vents; when the partition moves downward, the driving structure drives the sealing plates to open the air vents. This invention can isolate steam within the sealing cover for extraction, prevent asphalt from splashing into the sealing cover and causing blockages, and maintain stable airflow inside the sealing cover.
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