处理聚氨酯喷涂废气有哪些方法？
聚氨酯油漆类喷涂废气，首要由两个构成，一是液态的漆雾，二是气态的VOC。关于液态漆雾，需选用除漆雾设备；但对不溶水的VOC，工业老练技术应当仍是“活性炭吸附+光催化氧化脱附组合废气净化体系”。
1、干式漆雾过滤净化设备
现在，在金华尚和节能环保有限公司80％的喷漆室均选用干式漆雾净化，一个重要原因在于环境保护的归纳思考。此外，干式漆雾净化在保证喷漆性能、净化功率、减少二次污染、下降运转本钱等也显现了无穷的优越性。
2、活性碳废气净化处理设备
活性碳废气净化器是一种干式废气处理设备。由箱体和装填在箱体内的吸附单元构成。依据吸附单元的数量和风量可进行不一样规范的组合，活性碳废气净化器挑选不一样填料能够处理多种不一样废气，首要用于油漆等有机废气的净化。关于浓度低于1000mg/m3的废气净化后排放满意GB16297-1996《大气污染物归纳排放规范》。
本设备为活性碳吸附设备，需求配套活性碳再生体系（选用纳米光催化氧化设备）一同运用。活性碳吸附设备首要优点：吸附功率高、运转本钱低、保护方便、能够一起处理多种混合废气。
3、光催化氧化净化设备
因为活性炭具有能够再生的特色，在活性炭用量大、废气浓度高及活性炭吸附饱满时间短的情况下，可运用活性炭脱附设备对活性炭进行再生循环运用（脱附介质可运用蒸汽）。运用活性炭脱附设备不光能够节省运转本钱，而且能够对吸附的废气进行收回，一起避免了二次污染。在不收回溶剂的情况下，还能够选用光催化氧化 活性炭再生设备对活性炭进行再生循环运用
该设备核心中的纳米光催化触媒资料是一种吸收光能后，能在其外表发生催化反应的物质，其功用类似于植物的叶绿素。当特定纳米波长的紫外光照射光催化触媒资料时，其外表发生光催化氧化复原反应。光催化触媒资料吸收光子后在其外表发生电子（E—）和空穴（H+），将吸收的光能转化成化学能，即具有光催化效果。
Polyurethane paint spray emissions, mainly composed of two, one liquid mist, and the second is the gaseous VOC. On the liquid paint mist, need to use in addition to paint spray equipment; but the insoluble VOC, industrial sophisticated technology should still be "activated carbon adsorption + photocatalytic oxidation desorption combined exhaust gas purification system."
1, dry paint mist purification equipment
Now, in Jinhua Shanghe Energy Saving and Environmental Protection Co., Ltd. 80% of the spray booths are selected dry paint mist purification, an important reason is that the induction of environmental protection thinking. In addition, the dry paint mist purification to ensure the performance of paint, clean power, reduce the secondary pollution, decreased operating costs also showed infinite superiority.
2, activated carbon exhaust gas purification equipment
Activated carbon exhaust gas purifier is a dry exhaust gas treatment equipment. And is composed of a casing and an adsorption unit packed in the casing. According to the number of adsorption units and air volume can be different specifications of the combination of activated carbon exhaust gas purifier selection not the same filler can handle a variety of different emissions, mainly for paint and other organic waste gas purification. On the concentration of less than 1000mg / m3 of exhaust emissions after the release of satisfactory GB16297-1996 "air pollutant emission standards".
The equipment for the activated carbon adsorption equipment, the need for supporting activated carbon regeneration system (using nano-photocatalytic oxidation equipment) together with the use. Activated carbon adsorption equipment, the main advantages: high adsorption power, low operating costs, easy to protect, to deal with a variety of mixed exhaust.
3, photocatalytic oxidation purification equipment
Because the activated carbon has the characteristics of regeneration, activated carbon can be regenerated and recirculated using activated carbon desorption equipment (steam can be used in the desorption medium) under the condition of large amount of activated carbon, high concentration of exhaust gas and short time of adsorption of activated carbon. The use of activated carbon desorption equipment can not only save operating costs, and can absorb the exhaust gas to recover, to avoid the secondary pollution. In the case of non-recovery of solvent, but also can use photocatalytic oxidation of activated carbon regeneration equipment for the regeneration of activated carbon recycling
The device in the core of the nano-photocatalytic catalyst data is a light absorption, in its appearance of the catalytic reaction of substances, its function is similar to the chlorophyll of plants. When the specific nano-wavelength ultraviolet light photocatalytic catalyst data, the appearance of photocatalytic oxidation recovery reaction. Photocatalytic catalyst data absorption of photons in its appearance after the electron (E) and holes (H +), the absorption of light energy into chemical energy, that is, with the photocatalytic effect.
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