印刷業(yè)是VOCs排放的主要行業(yè)之一, 我國(guó)包裝印刷行業(yè)在生產(chǎn)過(guò)程中使用的溶劑型油墨, 油墨有50%-60%的揮發(fā)性組分；調(diào)整油墨粘度所需的稀釋劑更增加了有機(jī)廢氣的排放。在印制品干燥時(shí), 油墨所散發(fā)的揮發(fā)性組分的總含量占70%-80%, 會(huì)排放大量含有苯、甲苯、二甲苯等(約900種)揮發(fā)性有機(jī)化合物。印刷行業(yè)廢氣治理方案
目前關(guān)于印刷廢氣處理環(huán)保設(shè)備工藝常用成熟的工藝是轉(zhuǎn)輪+RTO工藝;
蓄熱式熱力焚燒（RTO）技術(shù)是一種工藝簡(jiǎn)單、占地面積小、運(yùn)行費(fèi)用低的有機(jī)廢氣處理系統(tǒng)，主要采用了先進(jìn)的熱交換技術(shù)和新型蜂窩陶瓷蓄熱材料，高效先進(jìn)的換熱系統(tǒng)保證了燃燒熱量的有效回收。
VOCs廢氣通過(guò)疏水性沸石濃縮轉(zhuǎn)輪后，能有效被吸附于沸石中，達(dá)到去除的目的。經(jīng)過(guò)沸石吸附的揮發(fā)性有機(jī)物的潔凈氣體，直接通過(guò)煙囪排放到大氣中，轉(zhuǎn)輪持續(xù)以每小時(shí)1-6轉(zhuǎn)的速度旋轉(zhuǎn)，同時(shí)將吸附的揮發(fā)性有機(jī)物傳送至脫附區(qū)。于脫附區(qū)中利用一小股加熱氣體將揮發(fā)性有機(jī)物進(jìn)行脫附，脫附后的沸石轉(zhuǎn)輪旋轉(zhuǎn)至吸附區(qū)，持續(xù)吸附揮發(fā)性有機(jī)氣體。脫附后的濃縮有機(jī)廢氣送至焚化爐進(jìn)行燃燒轉(zhuǎn)化成二氧化碳及水蒸氣排放至大氣中。
將有機(jī)廢氣加熱升溫至760～820℃左右，使廢氣中的VOC氧化分解,成為無(wú)害的CO2和H2O；氧化時(shí)的高溫氣體的熱量被蓄熱體“貯存”起來(lái)，用于預(yù)熱新進(jìn)入的有機(jī)廢氣，從而節(jié)省升溫所需要的燃料消耗，降低運(yùn)行成本。
GRTO 凈化有機(jī)廢氣工藝特點(diǎn)
安全性
充分考慮了消防、防爆等安全因素，運(yùn)行穩(wěn)定，安全可靠。GRTO不僅有高濃度防爆裝置，而且設(shè)有爆炸泄壓設(shè)計(jì)。
根據(jù)NFPA 規(guī)定設(shè)計(jì),氧化爐本體需安裝四支熱電偶 用于溫度顯示,溫度記錄, 溫度控制, 連鎖系統(tǒng)運(yùn)行, 報(bào)警以及控制主燃料比例閥閥之開(kāi)度. 監(jiān)控爐膛溫度須達(dá)VOCs 分解溫度以及不能超過(guò)預(yù)警溫度。
技術(shù)先進(jìn)性
GRTO 控制系統(tǒng)設(shè)有軟硬體聯(lián)鎖，可通過(guò)溫度、壓力等反饋，及時(shí)調(diào)節(jié)響應(yīng)聯(lián)動(dòng)器件，可有效保障系統(tǒng)安全。RTO控制系統(tǒng)采用 PLC,安置在控制盤(pán)體內(nèi)；配有火焰強(qiáng)度顯示、高溫控制器、報(bào)警、復(fù)位、開(kāi)關(guān)機(jī)、緊急停機(jī)以及無(wú)紙記錄儀；RTO系統(tǒng)與生成線進(jìn)行無(wú)縫銜接，確保不影響現(xiàn)有工藝及生產(chǎn)。
工藝成熟性
該廢氣處理工藝成熟可靠，能保證處理效果、性能和處理能力，避免了資源浪費(fèi)、二次污染和安全危害。并且多次應(yīng)用在世界五百?gòu)?qiáng)涂裝、化工車間等
Zeolite Rotary Concentrator Wheel+ GRTO:
對(duì)于低濃度?大風(fēng)量的VOC污染廢氣，上海安居樂(lè)環(huán)?？萍脊煞萦邢薰就瞥鲎灾髦R(shí)產(chǎn)權(quán)的GRTO工藝，進(jìn)一步完善了傳統(tǒng)的VOC濃縮+RTO蓄熱燃燒裝置工藝，可以將低濃度、大風(fēng)量的污染空氣濃縮為小風(fēng)量、高濃度的廢氣后進(jìn)行熱力燃燒處理，效率提升，安全提升，而且可以降低運(yùn)行成本，實(shí)現(xiàn)低成本、高效率VOC尾氣處理達(dá)標(biāo)排放，是行業(yè)領(lǐng)先的有機(jī)揮發(fā)性VOC和惡臭HAP廢氣環(huán)保治理工藝。
How to treat low concentration with large air flow waste stream? Shanghai Anjule has patent designed solutions with the zeolite concentrators to reduce the air flow of the pollutant and concentrate the VOCs before the RTO treatment. Improve the removal efficiency, reduce the operating cost while meeting the regulations. This is a leading technologies in treating VOCs and HAP.
常規(guī)有機(jī)廢氣濃縮轉(zhuǎn)輪和RTO（RCO）處理流程如下：
The process flow for zeolite rotary concentrator wheel+ RTO (RCO)
安居樂(lè)的工藝技術(shù)更加貼近廢氣工況，以大風(fēng)量的噴漆廢氣處理為例：
車間排放有機(jī)廢氣通過(guò)總管道送至G渦流凈化塔做漆霧顆粒去除處理，后經(jīng)過(guò)除霧器，再經(jīng)過(guò)專門(mén)設(shè)計(jì)的組合過(guò)濾器后，由VOC沸石濃縮轉(zhuǎn)輪吸附區(qū)吸附，吸附效率為90%以上；排放廢氣由吸附風(fēng)機(jī)抽出，并達(dá)標(biāo)排放；
濃縮轉(zhuǎn)輪吸附住的有機(jī)物，從轉(zhuǎn)輪脫附區(qū)域脫附出來(lái)進(jìn)入RTO高溫氧化處理
Anjule technology can be applied to work with the process specifications. For example, emission from coating industrial has the characteristic of high air volume: the waste gas was sent to the G-vortex column to remove particulate. After the dehumidifier process, the waste gas was sent to a specially designed filter before entering the rotary concentrator for VOCs adsorption. The removal efficiency can achieve VOC removal efficiency above 90%. A system fan was installed to release the cleaned air, which is in compliance with the regulations. The air stream then transfer to the RTO for further treatment.
一、轉(zhuǎn)輪入口G渦流凈化塔
安居樂(lè)G渦流洗滌凈化塔采用獨(dú)特的渦流結(jié)構(gòu)；凈化去除有機(jī)廢氣中漆物，以滿足轉(zhuǎn)輪入口條件；優(yōu)點(diǎn)：1、不易堵塞，無(wú)需更換填料。2、運(yùn)行成本低。3、漆粒去除效率高，防治漆粒積蓄在轉(zhuǎn)輪上發(fā)生火災(zāi)。
1. Rotary entrance with G-vortex column
Anjule G-vortex column has a unique vortex structure, purify and remove the paint organic substance from gas.
The advantage: 1. Avoid the blockage of the packing media; reduce the operating cost; and achieve high removal efficiency of VOC substance. Minimize the accumulation of the paint substance on the rotary and at a result prevent fire hazard.
二、先進(jìn)轉(zhuǎn)輪裝置
2. Advance rotary device
安居樂(lè)設(shè)有專門(mén)的VOC處理實(shí)驗(yàn)室，廢氣治理實(shí)驗(yàn)工程中心，轉(zhuǎn)輪裝置引進(jìn)日本，實(shí)驗(yàn)測(cè)試具體成分的轉(zhuǎn)輪效率，保障項(xiàng)目的成功率。轉(zhuǎn)輪吸附裝置的優(yōu)點(diǎn)體積小、操作方便、壓降低；它可以連續(xù)地將大的廢氣流量處理成濃度足夠低的凈化氣，而解吸出來(lái)的氣體則濃度高而流量低，從而進(jìn)入低風(fēng)量RTO裝置徹底燃燒。
Aujule has set up a laboratory and an engineering center for the design of the exhaust gas VOC treatment. The rotary wheels are imported from Japan; the VOC compounds removal rate are measured in a laboratory to ensure the successful treatment for the environmental projects.
The advantage of our rotary concentrator: small size, convenience, low pressure lost and work continuously to concentrate low VOC concentration waste gas. The rotary processed gas has a high concentration of VOC with less volume and therefore reduce the amount of the waste gas for the RTO treatment.
三、安全性高
安居樂(lè)獨(dú)家專利設(shè)計(jì)的GRTO工藝充分考慮了消防、防爆等安全因素，運(yùn)行穩(wěn)定，安全可靠，工藝完整。
3. Safety guarantee
Patent designed of Anjule GRTO has put the fire, explosions and other safety factors into fully consideration. The operation of the GRTO is steady, safe and reliable.
四、技術(shù)先進(jìn)性
GRTO 控制系統(tǒng)設(shè)有軟硬體聯(lián)鎖，可通過(guò)溫度、壓力等反饋，及時(shí)調(diào)節(jié)響應(yīng)聯(lián)動(dòng)器件，可有效保障系統(tǒng)安全。RTO控制系統(tǒng)采用PLC,安置在控制盤(pán)體內(nèi)；配有火焰強(qiáng)度顯示、高溫控制器、報(bào)警、復(fù)位、開(kāi)關(guān)機(jī)、緊急停機(jī)以及記錄儀；RTO系統(tǒng)與產(chǎn)線進(jìn)行無(wú)縫銜接，確保不影響現(xiàn)有工藝及生產(chǎn)。
4. Advance Technology
GRTO control system equipped with software and hardware interlocks, through temperature, pressure responses, the system reacts immediaby to the safety control of the system. Effectively，protect the safety of the system . RTO control system uses PLC, installed inside of the control panels; equipped with flame intensity detector, temperature controllers, alarm, reset, on and off switch, emergency stop, and a recorder; RTO system works seamlessly with the production line without interfering to the existing production.
五、運(yùn)行費(fèi)用優(yōu)勢(shì)
濃度越高運(yùn)行成本越低。所以采取合理的技術(shù)手段增加有機(jī)廢氣進(jìn)入RTO（RCO）時(shí)的濃度，以及減少?gòu)U氣處理量是減少RTO（RCO）投資與提高運(yùn)行效率的有效途徑。
5. The low operating cost advantage
Lower operating cost can be achieved with high VOC concentration in the waste stream. Using a rotary concentrator to reduce the volume of the waste gas is a feasible way in decreasing the cost.
上海安居樂(lè)環(huán)保科技股份有限公司
地址:上海市奉賢區(qū)青偉路188號(hào)
