【正文】
樣 , 在簡(jiǎn)體內(nèi)壁始終覆蓋一層旋轉(zhuǎn)向下流動(dòng)的很薄水膜 , 達(dá)到提高除塵效果的目的 。 它的工作原理是 : 含塵氣體由簡(jiǎn)體下部順切 向引入 , 旋轉(zhuǎn)上升 , 塵粒受離心力作用而被分離 , 拋向筒體內(nèi)壁 , 被簡(jiǎn)體內(nèi)壁流動(dòng)的水膜層所吸附 , 隨水流到底部錐體 , 經(jīng)排塵口卸出 。 水膜除塵器 是一種利用含塵氣體沖擊除塵器內(nèi)壁或其他特殊構(gòu)件上用某種方法造成的水膜 , 使粉塵被水膜捕獲 , 氣體得到凈化的凈化設(shè)備 。為此,對(duì)鍋爐燃煤產(chǎn)生的煙氣需要進(jìn)行控制,本次課設(shè)根據(jù)實(shí)際情況采用的是水膜除塵系統(tǒng)。 總 結(jié) ................................................................................................................................. 24 內(nèi)蒙古工業(yè)大學(xué)《大氣污染控制工程課程設(shè)計(jì)》說(shuō)明書 參考文獻(xiàn) ............................................................................................................................. 25 謝 辭 ................................................................................................................................. 26 內(nèi)蒙古工業(yè)大學(xué)《大氣污染控制工程課程設(shè)計(jì)》說(shuō)明書 1 第一章 緒 論 本次課程設(shè)計(jì)是對(duì)燃煤采暖鍋爐房煙氣除塵系統(tǒng)進(jìn)行設(shè)計(jì)。 局部壓力損失 ........................................................................................... 16 臥式旋風(fēng)水膜除塵器的結(jié)構(gòu)尺寸圖 .................................................................. 17 第五章 風(fēng)機(jī)和電機(jī)的選擇 ............................................................................................... 22 通風(fēng)機(jī)的計(jì)算 ........................................................................ 錯(cuò)誤 !未定義書簽。排出煙氣達(dá)到國(guó)家二級(jí)一般工業(yè)地區(qū)的排放標(biāo)準(zhǔn)。最后根據(jù)相關(guān)參數(shù)選擇風(fēng)機(jī)、電機(jī)。其結(jié)構(gòu)尺寸可以查閱相關(guān)資料由風(fēng)量而定。綜合煙塵各項(xiàng)物理性質(zhì),水膜除塵器是最符合要求的。因此,有效控制各種污染物的排放勢(shì)在必得。內(nèi)蒙古工業(yè)大學(xué)《大氣污染控制工程課程設(shè)計(jì)》說(shuō)明書 摘 要 目前大氣污染已成了全球性的問(wèn)題,主要有溫室效應(yīng)、酸雨,臭氧空洞等問(wèn)題。這些環(huán)境問(wèn)題主要是由人類的各種活動(dòng)引起的。本次課程設(shè)計(jì)是對(duì)燃煤采暖鍋爐房煙氣除塵系統(tǒng)進(jìn)行設(shè)計(jì),燃煤過(guò)程中排放大量煙塵 ,嚴(yán)重影響著空氣質(zhì)量和人類生活環(huán)境。水膜除塵具有 結(jié)構(gòu)簡(jiǎn)單 , 金屬耗量小,耗水量小 , 除塵效果好,脫硫程度高,運(yùn)行簡(jiǎn)單方便等優(yōu)點(diǎn)。設(shè)計(jì)中要計(jì)算出燃煤排氣量和 2SO 等,進(jìn)而選擇除塵器并計(jì)算相關(guān)管道尺寸。含塵氣體經(jīng)除塵器后再經(jīng)脫硫、除塵等工藝最后經(jīng)煙囪排往大氣。 關(guān)鍵詞 :大氣污染;水膜式除塵器;燃煤鍋爐;含塵氣體內(nèi)蒙古工業(yè)大學(xué)《大氣污染控制工程課程設(shè)計(jì)》說(shuō)明書 Abstract Currently air pollution has bee a global problem, there are the greenhouse effect, acid rain, ozone hole and other issues. These environmental problems are mainly caused by human activities. Therefore, effective control of emissions of various pollutants aspirations. The course design is designed for flue gas dust removal system of coalfired heating boiler, lots of smoke and dust emissions processed from burning coals , which is seriously affecting air quality and human living environment.. Comprehensivly analysis the physical properties of consolidated dust,Water membrane Dust collector is the best collector to meet the requirements. The Water membrane Dust collector has a simple structure, the metal consumption is small and the amount of water is little, it has a good dust removal effect, a high degree of desulfurization. It has a good advantages of easy operation. The structure size is determined by the amount of wind. Design to calculate the amount of wind and by the wind and the chimney pipe size design, fans, motors and so on. The structure size can access relevant information determined by the amount of wind. Design to calculate the displacement and other coalfired, and then select the filter and calculate the associated piping size. Finally, according to the relevant parameters blower motor. The dust collector and then through the dusty gas desulphurization and dust removal and other final process to the atmosphere through the chimney. Exhaust gas meet the national emission standards for general industrial areas. Keywords: membrane filter water; air pollution; coalfired boilers; gas dust 內(nèi)蒙古工業(yè)大學(xué)《大氣污染控制工程課程設(shè)計(jì)》說(shuō)明書 目 錄 第一章 緒 論 ..................................................................................................................... 1 設(shè)計(jì)任務(wù)和內(nèi)容 .................................................................................................... 1 設(shè)計(jì)題目 ..................................................................................................... 1 設(shè)計(jì)任務(wù) ..................................................................................................... 1 設(shè)計(jì)內(nèi)容 ..................................................................................................... 1 設(shè)計(jì)原則 ..................................................................................................... 2 相關(guān)參數(shù) ................................................................................................................ 2 第二章 除塵系統(tǒng)的確定 ..................................................................................................... 4 排煙量及煙塵濃度和二氧化硫濃度的計(jì)算 .......