Semi-coke dry quenching system and method

The circulating water and nitrogen countercurrent heat exchange technology in the CDQ system solves the problems of environmental pollution and water resource consumption during the semi-coke cooling process, achieves efficient and environmentally friendly semi-coke cooling, reduces moisture content and saves energy.

CN120758252APending Publication Date: 2025-10-10ACRE COKING & REFRACTORY ENG CONSULTING CORP DALIAN MCC
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202510945605.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-09
Publication Date
2025-10-10

AI Technical Summary

Technical Problem

In the existing semi-coke cooling process, high-temperature semi-coke generates a lot of steam during transportation, which pollutes the environment and consumes a lot of water resources. The semi-coke after quenching has a high moisture content and requires additional drying treatment, resulting in energy waste.

Method used

A combination of circulating water indirect cooling and nitrogen direct cooling is adopted, and a fully closed CDQ furnace system is used. Circulating water and nitrogen are used for countercurrent heat exchange with the semi-coke to achieve rapid cooling, thus achieving efficient cooling of the semi-coke.

Benefits of technology

It improves the quenching efficiency, improves the operating environment, reduces the moisture content, avoids additional drying treatment, and reduces energy consumption.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120758252A_ABST
    Figure CN120758252A_ABST
Patent Text Reader

Abstract

The invention relates to a semi-coke dry quenching system and method. The semi-coke dry quenching system comprises a scraper, a dry quenching furnace, a conical distributor and a disc feeder, a plurality of semi-coke blanking channels are arranged in the dry quenching furnace body; a circulating water inlet is formed in the lower part of a furnace body of the dry quenching furnace, and a circulating water outlet is formed in the upper part of the furnace body; the lower parts of the semi-coke blanking channels are respectively connected with a nitrogen inlet pipe, the upper parts of the semi-coke blanking channels are respectively connected with a nitrogen outlet pipe, and the nitrogen inlet pipe is connected with the nitrogen outlet pipe through a nitrogen circulating pipeline. According to the invention, a mode of indirect cooling by circulating water and direct cooling by nitrogen is adopted for quenching, so that the quenching efficiency is improved; a whole-course closed structure is adopted in the quenching cooling process of high-temperature semicoke from the carbonization furnace to the dry quenching furnace, so that the operation environment of a quenching operation area is greatly improved; and the quenched semicoke is low in moisture content and does not need to be dried before being used.
Need to check novelty before this filing date? Find Prior Art