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Device and method for continuously preparing active carbon by biomass in bulk

A technology for preparing activated carbon and biomass, which is applied in the direction of climate sustainability, chemical instruments and methods, sustainable manufacturing/processing, etc., and can solve low heat utilization efficiency, low drying/carbonization/activation efficiency, discontinuous production process, etc. problems, to achieve high heat utilization efficiency, continuous production, and strong adaptability

Inactive Publication Date: 2010-11-17
SOUTHEAST UNIV
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AI Technical Summary

Problems solved by technology

The invention overcomes the defects of low heat utilization efficiency, low drying / carbonization / activation efficiency and discontinuous production process in the current activated carbon preparation process.

Method used

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  • Device and method for continuously preparing active carbon by biomass in bulk
  • Device and method for continuously preparing active carbon by biomass in bulk

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the drawings.

[0032] The invention is a device and method for continuously preparing activated carbon in batches using biomass. The drying, carbonization, activation and cooling of biomass all adopt a spiral coil structure with internal and external heating methods, which can be carried out in continuous and uninterrupted conditions. Can realize continuous production. The time and temperature required for biomass drying, carbonization and activation can be easily adjusted by adjusting the rotating speed of the coil shaft and the heating flue gas temperature. The non-condensable gas, combustible gas and tar produced during the production process are all sent to the waste heat boiler for heat utilization. The entire system has high heat utilization efficiency, low energy consumption per unit product, and no secondary pollution.

[0033] See figure 1 The device for continuously preparing activated ca...

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Abstract

The invention relates to a device and a method for continuously preparing active carbon by a biomass in bulk. The invention is characterized in that the device comprises a spiral dryer (1), a spiral carbonization activation device (2), a spiral cooling device (3), a combustion furnace (4), a waste heat boiler (5), a circulating fan (6), a blower (7), an induced fan (8), a chimney (9), a velocity modulation motor (10), a spray tower (14), a waste liquor circulation pool (15), and a circulation water pump (16), wherein the spiral dryer (1) is provided with a feed port (11), a waste air outlet(1a), a material outlet after drying (13), a coil and a sleeve; and the spiral carbonization activation device (2) comprises a carbonization section (2-1) and an activation section (2-2) communicated with the carbonization section (2-1). By using the invention, the defects of low heat utilization efficiency, low drying / carbonization / activation efficiencies, discontinuous production course and the like in the existing active carbon preparation technology are overcome.

Description

Technical field [0001] The invention relates to a device and method for continuously preparing activated carbon in batches using biomass, which has the characteristics of continuous production, strong adaptability of biomass materials, low labor intensity, high heat utilization efficiency, low energy consumption per unit product, no secondary pollution, etc. . Background technique [0002] Activated carbon is a high-quality adsorbent with rich internal pore structure and high specific surface area. With the development of industry, its application is more and more extensive. It has been widely used in environmental protection, agriculture, pharmaceutical industry, and food industry. And various other fields. [0003] my country is a major producer of activated carbon. The total production of activated carbon is second only to the United States, and the export volume ranks first in the world. The annual export volume of activated carbon reaches 70 to 80 thousand tons. At the same ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/10C01B32/336
CPCY02P20/10Y02P20/129
Inventor 黄亚继金保昇仲兆平李勤李斌段锋孙宇
Owner SOUTHEAST UNIV
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