Rotary internal heating type activation furnace and activation method for activated carbon with high specific surface area

By adopting rotary internal heat activation furnace and water vapor injection technology in the activated carbon production process, the problems of low specific surface area and safety hazards of activated carbon are solved, and the dual goals of production and safe production of high specific surface area are achieved.

CN119683627APending Publication Date: 2025-03-25QINGDAO GUANBAOLIN ACTIVATED CARBON CO LTD
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Patent Information

Application Number
CN202411887454.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2025-03-25

AI Technical Summary

Technical Problem

In the existing activated carbon production process, the specific surface area of ​​activated carbon is relatively low, and there are safety hazards during the production process, such as the risk of explosion.

Method used

A rotary internal heat activation furnace is adopted. By setting up water vapor nozzles at the furnace head and the tail, water vapor injection is used to carry out activation reactions, the specific surface area of ​​activated carbon is increased, and heat is provided through the downstream activation method and a natural gas burner to reduce the risk of deflagration.

Benefits of technology

The specific surface area of ​​activated carbon has been improved to reach 1200-1400㎡/g, which enhances the safety and production efficiency of the equipment and reduces production costs.

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Abstract

The invention provides a high-specific-surface-area activated carbon rotary internal heating type activating furnace which is a horizontal rotary furnace and inclines downwards by 2-4 degrees, and a furnace head is higher than a furnace tail. A water vapor nozzle of the furnace end is located 2-4 meters from the furnace end to the interior of the furnace and is 60-80 mm away from a carbonized material layer; a water vapor nozzle at the tail of the furnace is positioned 2-4m from the tail of the furnace to the inside of the furnace and is 40-60mm away from a carbonized material layer; water vapor and smoke flow from the furnace end to the furnace tail, and materials move from the furnace end to the furnace tail. The invention further provides an activation method of the activated carbon with the high specific surface area, and the rotary internal heating type activation furnace is used. Most importantly, water steam is sprayed at the furnace head and the furnace tail to carry out activation reaction of activated carbon, a downstream activation method is adopted, organic gas can be fully combusted, deflagration and explosion are prevented, and the device has the advantages of high specific surface area, high safety coefficient, long service life, high thermal efficiency, simplicity and convenience in operation, high yield, stable product index and the like.
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