Rotary activating oven for preparing high-quality coal-based activated carbon

Abstract

The invention discloses a rotary activating oven for preparing high-quality coal-based activated carbon, and belongs to the field of production equipment of activated carbon. The rotary activating oven comprises a steam preheating device, an activating device, a feeding and discharging system and a main body part of the rotary activating oven, wherein the interior of the rotary activating oven isdivided into four sections: a material guiding section, a material ejecting and preheating section, a carbonized material activating section and a discharging section; the temperatures of water vaporin three sections are sequentially raised, and finally water vapor with the temperature of 800 to 900 DEG C is effectively and quickly contacted and activated with a carbonized material; meanwhile, the carbonized material activating section adopts a special geometrical structure formed by refractory castable and a silicon carbide material, so that stacking of a coal material can be effectively avoided, and full reaction and contact between the water vapor and the coal material are ensured; besides, an activating material and high-temperature water vapor are fully activated at high temperature.Compared with the conventional rotary activating oven, a product obtained by the activating oven has higher iodine value and greater specific area, can effectively increase the capacity of activatedcarbon and can be used for producing high-quality coal-based activated carbon.

Description

technical field [0001] The invention belongs to the field of activated carbon production equipment, in particular to a rotary activation furnace for preparing high-quality coal-based activated carbon. Background technique [0002] Activated carbon is the oldest and increasingly attractive adsorbent and carrier. Its applications include: environmental protection, chemical industry, food industry, pharmaceutical industry, mining, atomic energy industry, agriculture, catalysts and their carriers and many other fields. As the environmental protection situation becomes increasingly serious, the use of activated carbon is of great significance to prevent air pollution. At present, activated carbon for desulfurization and denitrification is widely used in the purification of sintering flue gas. Activated carbon can not only efficiently remove SO in flue gas 2 and NO x At the same time, it can synergistically remove dioxins in steel sintering and waste incinerator flue gas, which i...

AI Technical Summary

Problems solved by technology

However, this document does not fully consider the wear-resistant and high-temperature performance of the rotary furnace and the steam preheating, and does not fully consider the wear of the coal material on the inner wall of the furnace during use, and the corrosion of the furnace body by high-temperature flue gas and water vapor.

Images