燃煤電廠煙氣石灰噴霧干燥法脫硫設(shè)計(jì)【含CAD圖紙+文檔】

壓縮包內(nèi)含有CAD圖紙和說明書,均可直接下載獲得文件，所見所得，電腦查看更方便。Q 197216396 或 11970985 摘 要燃煤煙氣脫硫（Flue Gas Desulfurization ，簡稱FGD）是目前世界上唯一大規(guī)模商業(yè)化應(yīng)用的脫硫技術(shù)。世界各國研究開發(fā)的煙氣脫硫技術(shù)達(dá)200多種，但商業(yè)應(yīng)用的不超過20種。在中、大型電站鍋爐中，目前商業(yè)應(yīng)用最為廣泛的脫硫方法是進(jìn)行煙氣脫硫。按脫硫過程是否加水和脫硫產(chǎn)物的干濕形態(tài)，煙氣脫硫可分為濕法、半干法和干法三類工藝。濕法脫硫技術(shù)成熟，效率高，Ca/S比低，運(yùn)行可靠，操作簡單，但脫硫產(chǎn)物的處理比較麻煩，煙溫降低不利于擴(kuò)散，傳統(tǒng)濕法的工藝較復(fù)雜，占地面積和投資較大；干法脫硫要求溫度較高，并由此產(chǎn)生難以處理的酸霧，且脫硫劑利用率低；半干式脫硫工藝避免了上述兩種工藝的缺點(diǎn)，備受關(guān)注。噴霧干燥法脫硫法系統(tǒng)簡單，投資相對較少，所以對于現(xiàn)有鍋爐的煙氣脫硫改造是比較適合的方案。本設(shè)計(jì)主要是燃煤電廠煙氣脫硫的方案的比較，對于選定的噴霧干燥法脫硫法系統(tǒng)，進(jìn)行了比較詳細(xì)地設(shè)計(jì)計(jì)算。我們通過已知的一些參數(shù)，運(yùn)用一些現(xiàn)有的經(jīng)驗(yàn)公式確定了脫硫系統(tǒng)各部分一些重要的結(jié)構(gòu)和設(shè)計(jì)參數(shù)。關(guān)鍵詞：煙氣脫硫 半干法 噴霧干燥法 燃煤電廠abstractWith the development of modern industry , more and flue gas containing so is sent out from factories resulting in environment pollution and damage to health . So more and more attention is paid on there searching of desulphurization of flue gas .Currently the most widely used business utility of desulfuration on power plant is the flue gas desulfuration . And the FGD can be classified into CACO3/CASO4 wet desulfuration process , atomizing and drying out process and limestone injection into the furnace and calicium oxide activation process . There exists problem of equipment corrosion in wet process , and the problem is difficult to solve , what is more , the flow of wet process is too long , so its use is limited . Dry process must go on with elevated temperature , what is more , efficiency of absorbent utilization was not high , and there exists acid mist that is difficult to deal with , so it is not a satisfactory method either . The semi-dry process gets rid of shortcomings of the two processes mentioned above , so it is interested widely , experimental research of flue gas desulphurization with spray drying was done in this dissertation , was described . If the main equipment of the spray drying was done in this dissertation , was described . If the main equipment of the spray drying absorption process can be produced by ourselves , the invest of the FGD system can be reduced acordingly .By means of the comparison and selection , the best kind of process for the power plant flue gas desulfuration is chosen in this paper . The spray drying absorption process detail calculation on this process is discussed in this paper .At last semi-dry process is chosed , and the detail calculation on the system design is provided . By the basic information of the unit , we get the important design parameters of FGD system and operation parameters . Some experience equation is involved in the calculation .Key Words: flue gas desulfuration , spray drying , semi-dry Coal-burning Power Plant