1.鋁合金壓鑄廢氣概述
1. Overview of waste gas from aluminum alloy die casting
鋁合金在壓鑄工序中會產(chǎn)生含硫和含氮的尾氣，也會排放出大量的顆粒物，其中包括粉塵和黑煙。鋁合金壓鑄廢氣溫度高、帶有腐蝕性，尾氣溶于水呈酸性，這些污染物會影響工廠車間員工工作環(huán)境，還會破壞周邊的環(huán)境，造成大氣污染。
Aluminum alloy in the die casting process will produce sulfur-containing and nitrogen-containing exhaust gas, but also will emit a large number of particles, including dust and black smoke. The exhaust gas of aluminum alloy die casting has high temperature and corrosiveness. The exhaust gas dissolves in water and is acidic. These pollutants will affect the working environment of employees in the factory workshop and damage the surrounding environment, causing air pollution.
2.鋁合金壓鑄廢氣處理方法
2. Treatment method of waste gas from aluminum alloy die casting
根據(jù)鋁合金壓鑄廢氣的主要特點是，高溫，帶有腐蝕性，溶于水呈酸性，處理鋁合金壓鑄廢氣可以選擇噴淋塔對其進(jìn)行凈化處理。由于鋁合金壓鑄廢氣的性質(zhì)，所以在處理鋁合金壓鑄廢氣時，應(yīng)考慮噴淋塔的耐腐蝕性和耐高溫性、根據(jù)天浩洋20多年的廢氣處理經(jīng)驗，需要使用不銹鋼材質(zhì)作為噴淋塔外殼才可抵御鋁合金壓鑄廢氣的高溫和腐蝕性。
According to the main characteristics of aluminum alloy die casting waste gas, it is high temperature, corrosive, soluble in water and acidic. Spray tower can be selected to purify aluminum alloy die casting waste gas. Due to the nature of the waste gas from aluminum alloy die casting, the corrosion resistance and high temperature resistance of the spray tower should be considered when dealing with the waste gas from aluminum alloy die casting. According to the waste gas treatment experience of tianhaoyang for more than 20 years, stainless steel is needed as the shell of the spray tower to resist the high temperature and corrosion of the waste gas from aluminum alloy die casting.

3.鋁合金壓鑄廢氣處理工藝
3. Waste gas treatment process of aluminum alloy die casting
噴淋塔是由填料層、噴淋層、噴淋層、除霧層等多個組件組成，所有組件均由不銹鋼材質(zhì)制成。鋁合金壓鑄廢氣從塔底進(jìn)入廢氣噴淋塔內(nèi)，頂部噴嘴噴出吸收液，吸收液在填料層的鮑爾環(huán)填料形成液膜，廢氣與液膜接觸發(fā)生化學(xué)反應(yīng)，達(dá)到凈化的效果。廢氣繼續(xù)上升通過后續(xù)的多層的填料層進(jìn)行凈化處理，最后通過除霧層干燥并實現(xiàn)達(dá)標(biāo)排放。
Spray tower is composed of packing layer, spray layer, spray layer, demist layer and other components, all components are made of stainless steel. The waste gas of aluminum alloy die casting enters into the waste gas spray tower from the bottom of the tower, and the absorption liquid is sprayed from the top nozzle. The absorption liquid forms a liquid film on the Bauer ring packing of the packing layer, and the chemical reaction occurs between the waste gas and the liquid film to achieve the purification effect. The waste gas continues to rise, and is purified through the subsequent multi-layer packing layer. Finally, the waste gas is dried through the demisting layer and discharged up to the standard.
4.噴淋塔處理鋁合金壓鑄廢氣優(yōu)勢
4. Advantages of spray tower in treating waste gas from aluminum alloy die casting
（1）根據(jù)企業(yè)的實際情況，可以選擇多種不同的吸收液對鋁合金壓鑄廢氣進(jìn)行處理。
(1) According to the actual situation of the enterprise, a variety of different absorption liquid can be selected to treat the waste gas of aluminum alloy die casting.
（2）噴淋塔處理工藝簡單且成熟，全自動化操作，無需人工看管。適用于持續(xù)性和間歇性生產(chǎn)，對車間生產(chǎn)不造成影響。
(2) Spray tower treatment process is simple and mature, fully automatic operation, without manual care. It is suitable for continuous and intermittent production and has no influence on workshop production.
（3）填料采用高效、低阻力的鮑爾環(huán)填料，可有效地凈化鋁合金壓鑄廢氣，清洗后可反復(fù)使用。
(3) The ball ring packing with high efficiency and low resistance can effectively purify the waste gas of aluminum alloy die casting, and can be used repeatedly after cleaning.