注塑車間在注塑加熱過程中產(chǎn)生有機(jī)廢氣，其主要成分為粉塵顆粒物、非甲烷總烴類等有害物質(zhì)。該廢氣有刺激性氣味、略含毒性，對(duì)人體健康有較大的危害。無組織排放的苯乙烯、甲苯、有機(jī)廢氣等會(huì)對(duì)環(huán)境造成嚴(yán)重污染，對(duì)人體健康也會(huì)造成很大損害，所以塑料廠生產(chǎn)線廢氣不得不慎重處理。目前活性碳吸附是迄今為止廢氣凈化處理技術(shù)廣泛的應(yīng)用選擇,其原理是利用活性炭的吸附性和活性炭纖維的多孔結(jié)構(gòu),去吸附捕捉VOC有機(jī)廢氣。
The main components of organic waste gas are dust particles, non methane hydrocarbons and other harmful substances. The waste gas has a pungent odor and a little toxicity, which is harmful to human health. The unorganized emission of styrene, toluene, organic waste gas will cause serious pollution to the environment, and cause great damage to human health, so the waste gas from the production line of plastic factory has to be treated carefully. At present, activated carbon adsorption is widely used in waste gas purification and treatment technology. Its principle is to use the adsorption of activated carbon and the porous structure of activated carbon fiber to absorb VOC organic waste gas.
注塑車間催化燃燒設(shè)備介紹：
Introduction of catalytic combustion equipment in injection workshop:
首先有機(jī)廢氣經(jīng)干式過濾器去除部分粉塵、顆粒物，然后將符合吸附條件的有機(jī)廢氣送入活性炭吸附箱進(jìn)行吸附凈化，凈化后的潔凈氣體由主排風(fēng)機(jī)排入大氣中。吸附裝置配有備用吸附箱1套，當(dāng)活性炭吸附飽和后通過控制閥門切換至催化燃燒脫附狀態(tài)；脫附再生系統(tǒng)采用在線脫附再生，即吸附過程為連續(xù)式處理工藝，在備用吸附裝置投入使用同時(shí)，飽和吸附箱則進(jìn)行脫附工作，脫附后活性炭箱預(yù)備至下次循環(huán)使用。
Firstly, some dust and particulate matter are removed from the organic waste gas through the dry filter, and then the organic waste gas meeting the adsorption conditions is sent to the activated carbon adsorption box for adsorption purification, and the purified clean gas is discharged into the atmosphere by the main exhaust fan. The adsorption unit is equipped with a set of standby adsorption box, when the activated carbon is saturated, it is switched to the catalytic combustion desorption state through the control valve; the desorption regeneration system adopts online desorption regeneration, that is, the adsorption process is a continuous treatment process, while the standby adsorption device is put into use, the saturated adsorption box will be desorbed, and the activated carbon box will be prepared for the next cycle after desorption.
塑料廠催化燃燒設(shè)備工藝流程：
Process flow of catalytic combustion equipment in plastic plant:
本裝置工藝流程為：預(yù)處理——吸附濃縮——解吸脫附——催化燃燒的工藝流程。
The process flow of the unit is: pretreatment adsorption concentration desorption catalytic combustion process.

系統(tǒng)由2個(gè)活性炭吸附箱（1用1備）和1個(gè)催化燃燒床構(gòu)成，將各條生產(chǎn)線中所排放的有機(jī)廢氣經(jīng)收集匯總后送入凈化設(shè)備，在吸附凈化裝置與廢氣進(jìn)口之間安裝一套干式過濾預(yù)處理裝置，過濾少量的粉塵顆粒，從而避免活性炭微孔被堵塞，然后送入活性炭吸附箱進(jìn)行吸附凈化，當(dāng)任一活性炭吸附器接近飽和時(shí)，系統(tǒng)將自動(dòng)切換到備用活性炭吸附箱（此時(shí)飽和活性炭吸附箱停止吸附操作），然后用熱氣流對(duì)飽和活性炭吸附箱進(jìn)行解吸脫附，將有機(jī)物從活性炭上脫附下來。在脫附過程中，有機(jī)廢氣已被濃縮，濃度較原來提高十幾倍，達(dá)1500ppm以上，濃縮廢氣送到催化燃燒裝置，最后被分解成CO2與H2O排出。
The system is composed of two activated carbon adsorption boxes (one for use and one for standby) and one catalytic combustion bed. The organic waste gas discharged from each production line is collected and collected and sent to the purification equipment. A set of dry filtration pretreatment device is installed between the adsorption purification device and the waste gas inlet to filter a small amount of dust particles, so as to avoid the blockage of activated carbon micropores, and then send them to the activated carbon adsorption tank Adsorption purification: when any activated carbon adsorber is close to saturation, the system will automatically switch to the standby activated carbon adsorption box (at this time, the saturated activated carbon adsorption box stops adsorption operation), and then the saturated activated carbon adsorption box is desorbed with hot gas flow to desorb the organic matter from the activated carbon. In the desorption process, the organic waste gas has been concentrated, the concentration is more than ten times higher than the original, reaching more than 1500 ppm. The concentrated waste gas is sent to the catalytic combustion unit, and finally decomposed into CO2 and H2O for discharge.
完成解吸脫附后，活性炭吸附箱進(jìn)入待用狀態(tài)，待其他活性炭吸附箱接近飽和時(shí)，系統(tǒng)再自動(dòng)切換回來，同時(shí)對(duì)飽和活性炭吸附箱進(jìn)行解吸脫附，如此循環(huán)工作。最后凈化后的潔凈氣體由主排風(fēng)機(jī)排入大氣中。
After desorption, the activated carbon adsorption box will enter the standby state. When other activated carbon adsorption tanks are close to saturation, the system will automatically switch back, and at the same time, the saturated activated carbon adsorption box will be desorbed and desorbed, so as to cycle. Finally, the purified gas is discharged into the atmosphere by the main exhaust fan.
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