Detailed introduction
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(Abbreviated as MHF) The technology originated in the 1950s, initially designed and manufactured by Nichols Company in the United States. Industrial kilns, subsequently refined and improved by countries including Japan and Taiwan, are now used in activated carbon regeneration, sludge pyrolysis/carbonization, mineral roasting, and organic... Thermal pyrolysis/carbonization of solid waste has evolved into one of the mainstream furnace types in industry.
Operation Procedure Description:
● Set operating conditions for each layer separately: Control the combustion air volume to achieve controllable oxygen content in the flue gas.● Diverse operating modes: temperature, material residence time, and combustion mode are all controllable;● Low power consumption: The middle shaft requires little driving force, operates at low rotational speed, and handles a low volume of flue gas.● Few moving parts: low failure rate and long service life;● High work efficiency: It features excellent sealing, controllable furnace atmosphere, and minimal environmental influence.● Good thermal insulation, with minimal heat loss; large thermal mass of the furnace body, resulting in low heat dissipation.Technical features:
After entering from the top of the multiple hearth furnace, the material is evenly distributed across the furnace bed surface in a logarithmic spiral pattern under the raking action of the rake teeth. The rake teeth progressively loosen the material layer, increasing the contact between the material and the rising gas, thereby enhancing both heat and mass transfer. The design of the multiple hearth furnace features alternating central feeding and sidewall feeding, enabling cross-flow contact between the material and the gas. As the material moves downward through the furnace, it undergoes drying, pyrolysis, and carbonization/activation processes. The sides of the multiple hearth furnace are equipped with multiple layers of burners; depending on the type of material being processed, supplementary combustion heat is used to precisely control the temperature of each bed layer, thus effectively achieving “controllable” temperatures in all bed layers.
Activated carbon adsorption and in-situ regeneration
(Abbreviated as MHF) The technology originated in the 1950s from industrial kilns designed and manufactured by Nichols Company in the United States. Subsequently, through continuous improvements made in Japan, Taiwan, and other regions, it has evolved into one of the leading industrial furnace types in fields such as activated carbon regeneration, sludge pyrolysis/carbonization, mineral roasting, and thermal pyrolysis/carbonization of organic solid wastes.
Keywords: Activated carbon adsorption and in-situ regeneration
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Nanjing Yuding Environmental Technology Co., Ltd. is a wholly-owned subsidiary of Jiangsu Huanan Petrochemical Engineering Group Co., Ltd., dedicated to the research, development, design, manufacturing, installation, and operation of environmental protection technologies and equipment.
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