Technology and equipment for electric heating regeneration of activated carbon

A technology of activated carbon and electric heating, applied in filter regeneration, petroleum industry, filtration and separation, etc., can solve the problems of high loss of activated carbon, long regeneration time, and high energy consumption, to avoid energy consumption, avoid direct contact, and reduce loss rate. Effect

Active Publication Date: 2009-12-09
浙江中昌水处理科技有限公司
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Problems solved by technology

[0010] The purpose of the present invention is to solve the problems of high loss, high energy consumption and long regeneration time in the regeneration process of activated carbon, and provide a new electric heating regeneration process and equipment for activated carbon

Method used

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  • Technology and equipment for electric heating regeneration of activated carbon
  • Technology and equipment for electric heating regeneration of activated carbon

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Embodiment Construction

[0026] A kind of specific embodiment of the present invention is described below in conjunction with accompanying drawing:

[0027] In this embodiment, the production capacity of the activated carbon electrothermal regeneration process is 75Kg / h.

[0028] The granular wet carbon produced in the water treatment process is dehydrated by the dehydration tank, sucked into the fluidized bed by negative pressure, and dried in the hot air at 200-250°C to reduce the moisture content to 6%.

[0029] The dehydrated and dried carbon particles are put into the electric heating regeneration furnace through the feed port, and the carbon particles pass through the furnace cavity between the graphite electrodes in turn, and the arc is excited to make the carbon particles conductively heated, and the temperature of the carbon particles in the furnace cavity increases gradually from top to bottom, and the carbon particles The linear velocity of particles moving in the furnace cavity is 5.83m / s....

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Abstract

The invention belongs to the technical field of regeneration of activated carbon and in particular relates to technology and equipment for electric heating regeneration of activated carbon. The invention is characterized in that granular wet carbon is dehydrated, dried and put into an electric heating regeneration furnace of activated carbon, the carbon granules orderly pass through a furnace chamber between graphite electrodes, the activated electric arc enables the carbon granules to be conducted and heated, the temperature of the carbon granules in the furnace chamber gradually rises from top to bottom, the activation temperature of the carbon granules is from 650 DEG C to 850 DEG C, the carbon granules activated by electric heating are continuously discharged through a discharge hole at the bottom of the furnace, and the discharged carbon granules are cooled slowly in an oxygen-isolated nitrogen environment. Compared with the traditional technology, the invention has the advantages of low energy consumption, small wastage and accurate temperature control and greatly improves the production efficiency and the energy utilization. The iodine value, the phenol adsorption capacity, the specific surface area and other indexes of the regenerated activated carbon which is produced by the technology are all relatively stable, wherein the reversion rate of the iodine value is 98 percent of new carbon.

Description

Technical field: [0001] The invention belongs to the technical field of activated carbon regeneration, and in particular relates to an activated carbon electric heating regeneration process and equipment thereof. Background technique: [0002] Activated carbon has a highly developed pore structure and a large specific surface area. It is non-toxic and tasteless, and has a strong adsorption capacity for molecules. It is an excellent adsorbent and is widely used in many fields such as chemical industry, food, and water treatment. The consumption of activated carbon has increased rapidly. By the end of 1997, the world's activated carbon consumption had reached 650,000 tons; by 2004, it had exceeded 700,000 tons, and it was increasing at an annual rate of 15%. If a large amount of waste carbon generated during the application of activated carbon is not treated and recycled, it will not only cause waste of resources, but also cause secondary pollution to the environment. Therefo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/34
CPCB01J20/20B01J20/3441B01J20/3416
Inventor 丁云鹤江贻发
Owner 浙江中昌水处理科技有限公司
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