分別是熄燈前脫硫、熄燈中脫硫和熄燈后脫硫。 其中一般使用石灰石停止使用脫硫的方法，所以今天的恒能就集中在其中使用的江蘇生物脫硫設(shè)備吧。
They are desulfurization before turning off the light, desulfurization during turning off the light, and desulfurization after turning off the light. Among them, limestone is generally used to stop using desulfurization methods, so today's Hengneng will focus on the Jiangsu biological desulfurization equipment used in it.
生物脫硫設(shè)備的原理是將石灰石加水成漿，它能阻止煙氣中的二氧化硫和氧化反響，生成硫酸鈣。 經(jīng)過不斷的反響，硫酸鈣達(dá)到一定的飽和度后，就構(gòu)成了結(jié)晶二水石膏。 然后停止這些石膏的脫水處理，堆放在石膏儲(chǔ)藏室。 生物脫硫后的煙氣經(jīng)過除霧器和換熱器后，可通過煙囪排入大氣，經(jīng)脫硫設(shè)備處理的煙氣脫硫效率可達(dá)95%。
The principle of biological desulfurization equipment is to add limestone to water to form a slurry, which can prevent sulfur dioxide and oxidation reactions in flue gas, generating calcium sulfate. After continuous reflection, calcium sulfate reaches a certain saturation, forming crystalline dihydrate gypsum. Then stop the dehydration treatment of these gypsum and stack them in the gypsum storage room. The flue gas after biological desulfurization can be discharged into the atmosphere through the chimney after passing through the mist eliminator and heat exchanger. The desulfurization efficiency of the flue gas treated by the desulfurization equipment can reach 95%.
這種脫硫方法如此方便，除了自身的脫硫原理外，還需要高質(zhì)量的脫硫設(shè)備，為了更好地發(fā)揮脫硫效果，生物脫硫設(shè)備需要一定的耐腐蝕性，理由如下：
This desulfurization method is so convenient. In addition to its own desulfurization principle, high-quality desulfurization equipment is also required. In order to better utilize the desulfurization effect, biological desulfurization equipment needs a certain degree of corrosion resistance, for the following reasons:
1 .化學(xué)腐蝕，主要是指煙道中有腐蝕性的介質(zhì)在一定溫度下與金屬設(shè)備發(fā)生化學(xué)反響，生成可溶性鐵鹽，隨時(shí)間的推移對(duì)設(shè)備產(chǎn)生腐蝕作用。
1. Chemical corrosion mainly refers to the chemical reaction between corrosive media in the flue and metal equipment at a certain temperature, generating soluble iron salts that corrode the equipment over time.
2 .電化學(xué)腐蝕，這主要是指金屬設(shè)備外表含水和電解質(zhì)時(shí)，外表構(gòu)成一次電池，產(chǎn)生電流，經(jīng)過一段時(shí)間也會(huì)產(chǎn)生腐蝕作用。
2. Electrochemical corrosion refers to the formation of a primary battery on the surface of metal equipment containing water and electrolytes, which generates current and can also cause corrosion after a period of time.
3 .磨損腐蝕，主要是指煙道中殘留固體顆粒，這些顆粒會(huì)停止與生物脫硫設(shè)備外表的摩擦，不時(shí)更新外表，加速與設(shè)備外表的腐蝕過程，使設(shè)備外表變薄。
3. Wear and corrosion mainly refers to the residual solid particles in the flue, which will stop friction with the surface of the biological desulfurization equipment, update the surface from time to time, accelerate the corrosion process with the equipment surface, and make the equipment surface thinner.
由此可見，江蘇生物脫硫設(shè)備的生產(chǎn)必須關(guān)注設(shè)備防腐性能的設(shè)計(jì)，這一環(huán)節(jié)在整個(gè)生物脫硫過程中也起著重要的作用。
It can be seen that the production of Jiangsu biological desulfurization equipment must pay attention to the design of equipment anti-corrosion performance, which also plays an important role in the entire biological desulfurization process.
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