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voc废气治理催化燃烧设备设计

来源:http://www.yinyehuanbao.com     发布时间:2020-07-13   浏览次数:

(1)干式过滤器
(1) Dry filter
为防止废气中的漆雾颗粒堵塞吸附填料(活性炭)从而影响其对有机物的吸附性能,须确保吸附处理系统的气源干净无尘。在进入活性炭吸附浓缩装置前必须对其进行深度的除尘预处理,以确保粉尘除尘效率达到99%以上。干式除尘器采用两级净化,一级中效,一级。两级干式过滤工艺,一级中效Z85,二级中效G95。
In order to prevent the paint mist particles in the exhaust gas from blocking the adsorption filler (activated carbon) and affecting its adsorption performance of organic matter, it is necessary to ensure that the gas source of the adsorption treatment system is clean and dust-free. Before entering the activated carbon adsorption and concentration unit, it is necessary to carry out deep dust removal pretreatment to ensure that the dust removal efficiency reaches more than 99%. The dry dust remover adopts two-stage purification, one is medium efficiency and the other is high efficiency. Two stage dry filtration process, one medium efficiency z85, two medium efficiency g95.
(2)活性炭吸附箱
(2) Activated carbon adsorption box
活性炭吸附箱是实现该喷漆废气达标排放的关键设备,选择性能优良的活性炭和设计合理的活性炭吸附装置尺寸至关重要。在本设备中采用新型模块化蜂窝状活性炭吸附材料,具有耐水的能力,其与粒(棒)状活性炭相比具有优势的热力学性能、低阻低耗、高吸附率等,极适用于大风量下使用,拥有优良的吸附性能,其结构为多孔蜂窝状,具有孔隙结构发达,比表面积大,流体阻力小等优点,该产品特别适用于大风量,低浓度工厂有机废气净化治理,如工厂的二甲苯、醋酸丁酯等有毒有害废气治理。
车间除尘设备
The activated carbon adsorption box is the key equipment to achieve the emission standard of the spray paint exhaust gas. It is very important to select the activated carbon with excellent performance and design the reasonable size of the activated carbon adsorption device. In this equipment, a new type of modular honeycomb activated carbon adsorption material is adopted, which has the ability of water resistance. Compared with granular activated carbon, it has the advantages of thermodynamic performance, low resistance, low consumption, high adsorption rate, etc., which is very suitable for use in large air volume. It has excellent adsorption performance. Its structure is porous honeycomb, with developed pore structure, large specific surface area and small fluid resistance The product is especially suitable for the purification and treatment of organic waste gas with large air volume and low concentration, such as the treatment of toxic and harmful waste gas such as xylene and butyl acetate.
(3)催化燃烧器
(3) Catalytic burner
催化燃烧活性炭再生方法是:将脱附设备中的有机气体源通过引风机作用送入催化燃烧再生装置,首先通过除尘阻火器系统,然后进入换热器,再送入到加热室,通过加热装置,使气体达到燃烧反应温度,再通过催化床的作用,使有机气体分解成二氧化碳和水,高温洁净气体再进入换热器与低温脱附气体进行热交换,使脱附气体温度升高达到反应温度。脱附气体经过催化燃烧后去除率达到97%以上。
The regeneration method of catalytic combustion activated carbon is: the organic gas source in the desorption equipment is sent to the catalytic combustion regeneration device through the action of induced draft fan. Firstly, it passes through the dust arrester system, then enters the heat exchanger, and then it is sent to the heating chamber. Through the heating device, the gas reaches the combustion reaction temperature, and then through the catalytic bed, the organic gas is decomposed into carbon dioxide and water The temperature of the desorbed gas increases to the reaction temperature. After catalytic combustion, the removal rate of desorption gas is over 97%.
催化燃烧核心设备由换热器、催化床、电加热元件、阻火阻尘器和防爆装置等组成,阻火除尘器位于进气管道上,防爆装置设在主机的顶部。
The core equipment of catalytic combustion is composed of heat exchanger, catalytic bed, electric heating element, fire and dust arrester and explosion-proof device. The fire-retardant dust remover is located on the air inlet pipe, and the explosion-proof device is set on the top of the main engine.
(4)阻火器
(4) Flame arrestor
阻火器是阻止传播火焰(爆燃或爆轰)通过的装置,由阻火芯、阻火器外壳及附件构成,是阻止易燃气体火焰蔓延的安全装置。
Flame arrester is a device to prevent the spread of flame (deflagration or detonation) passing through. It is composed of flame retardant core, flame arrester shell and accessories. It is a safety device to prevent the spread of flammable gas flame.
燃烧所需要的必要条件之一就是要达到一定的温度,即着火点。低于着火点,燃烧就会停止。依照这一原理,只要将燃烧物质的温度降到其着火点以下,就可以阻止火焰的蔓延。当火焰通过阻火元件的许多细小通道之后将变成若干细小的火焰。设计阻火器内部的阻火元件时,则尽可能扩大细小火焰和通道壁的接触面积,强化传热,使火焰温度降到着火点以下,从而阻止火焰蔓延。
One of the necessary conditions for combustion is to reach a certain temperature, that is, the ignition point. Below the ignition point, combustion will stop. According to this principle, as long as the temperature of the burning material is lowered below its ignition point, the spread of the flame can be prevented. When the flame passes through many small channels of the fire arresting element, it will become a number of small flames. When designing the internal flame arrestor, the contact area between the small flame and the channel wall should be expanded as much as possible, and the heat transfer should be strengthened to make the flame temperature lower than the ignition point, so as to prevent the flame from spreading.
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