Dynamically magnetically controlled powder activated carbon device

Abstract

A dynamically magnetically controlled powder activated carbon device is provided, which comprises a wind suction mechanism, a dynamically magnetically controlled adsorption mechanism, and an exhaust mechanism which are sequentially connected. The dynamically magnetically controlled adsorption mechanism includes a sealed tank body, a plurality of activated carbon plates in the sealed tank body, anda movable magnetic control device in the tank body. A collection box containing magnetic activated carbon powder is arranged below the activated carbon plates, and the movable magnetic control deviceis used to control the adsorption of the magnetic activated carbon powder onto the surface of the activated carbon plates or separation of the magnetic activated carbon powder from the activated carbon plates. The dynamically magnetically controlled powder activated carbon device can adsorb VOCs and is low in cost and high in treatment efficiency.

Description

technical field [0001] The invention belongs to the technical field of environmental protection devices, and in particular relates to a dynamic magnetic control powder activated carbon device. Background technique [0002] VOCs are a kind of volatile organic compounds, including hydrogen sulfide, ammonia, fatty acids, nitro compounds, mercaptans, hydrocarbons, alcohols, phenols, esters and organic halogen derivatives, which are harmful. Dizziness, nausea, etc. will occur, and even poisoning and coma will occur in severe cases, causing life-threatening. VOCs participate in the formation of ozone and secondary sols in the atmospheric environment, which make an important contribution to regional atmospheric ozone pollution and PM2.5 pollution, and they can also volatilize at room temperature and are very unstable. The pollution prevention and control of VOCs has become one of the key tasks in the prevention and control of air pollution in the world, but there is still no suita...

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Problems solved by technology

Condensation technology separates VOCs according to the different condensation pressures of different gases at different temperatures. The technology is simple and easy to operate, but it can only be used for VOCs with higher boiling points and higher concentrations; Separation of VOCs with different properties, high recovery efficiency but high cost; water spray method, by spraying water to settle the water-soluble or large particle components in the exhaust gas, can realize water resource recycling, but the efficiency is low and it is not applicable Dry material recycling; plasma technology uses high-voltage pulse discharge to excite high-energy electrons, causing them to collide with VOCs in the air to generate carbon dioxide and water, but it is temporarily unable to carry out industrial production; the selection of adsorbent for adsorption treatment technology is very important, traditional methods Activated carbon is often selected for adsorption, which has the disadvantages of small adsorption capacity and easy saturation; direct combustion and indirect combustion are useful for most organic waste gases, suitable for organic waste gases with high concentration and no dioxins, but high energy consumption and danger The biodegradation method is an emerging technology. The treatment of VOCs through biological filtration can treat low-concentration organic waste gas. Through the treatment of biological filter beds, VOCs are reacted after passing through the biofilm filler in the biological filter bed. The organisms on the biofilm in the filter bed undergo an adsorption reaction to generate CO 2 and H 2 O, finally achieve shorting, but most of the existing processes are more complicated and have many influencing factors, so it is difficult to control

[0004] In summary, VOCs treatment technology has many shortcomings that are difficult to solve: raw materials are not suitable to be obtained, and the price of catalysts used is extremely high (such as membrane separation technology, etc.), which makes the treatment cost high; the process is complicated and many influencing factors make the treatment difficult to control; the adsorbent Select a single, the adsorption capacity generally makes the treatment efficiency low

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