【正文】
,000 tons of annual output of aluminum sulfate in China hav being upto 29, and the plants having 3000 t to 10000 t, being upto 85.The aluminum sulfate production capacity has reached million t, yield breakthroughs 950,000 t, after the United States and Japan, the third in the world live。摘要我國硫酸鋁的生產(chǎn)現(xiàn)狀,年產(chǎn)量萬噸以上的企業(yè)已達(dá)29個(gè),3000t至10000t的企業(yè)達(dá)85個(gè)。Aluminum sulfate production in the problem is that the unreasonable design, equipment is not supporting, yield and quality are unable to meet its mind and requested some smaller manufacturers, leading to poor economic returns serious backlog of products, investment is not possible, so that some enterprises back heavy The economic burden of production of a major Al Grey, Al Jardine, of aluminum hydroxide, bauxite atmospheric pressure, such as coal gangue pression method, all of the advantages and disadvantages pared to that of raw materials for the production of kaolin Aluminum sulfate, a lowcost raw materials, high yield, good quality products, processcontrol advantages, in the course of preparation of the highactivity waste residue can be used as the highsilicon material, but also as a fine of paint and sheet metal products fill, so as to achieve a prehensive Use and no waste residue emissions, have a positive environmental significance of raw materials used for the production of kaolin aluminum sulfate, with the design of purpose and guiding ideology.Kaolin production of aluminum sulfate, kaolin After pretreatment process, rule out the possibility of kaolin in the rough quartz sand, impurities, the glass used in the production of cement, by Kaolin concentrate, after calcination activated, crushing, screening sent to the production workshop, with 55 percent of the sulfuric acid Mixed easily sent to the reactor, the reaction of acid leaching, settlement, and in the separation and processing of aluminum sulfate be qualified easily, and sent to concentration crystallization tank, concentrated fruit and refined through the grinder will crush aluminum sulfate crystals, Packaging.加熱至770度是開始分解為氧化鋁、三氧化鋁、二氧化鋁、二氧化硫和水蒸氣。在造紙工業(yè)中可作紙的填料和處理造紙工業(yè)廢水。(4)濃縮結(jié)晶硫酸鋁經(jīng)過濃縮蒸發(fā)掉多余水分,從而結(jié)晶得到相應(yīng)的結(jié)晶水硫酸鋁最終產(chǎn)品。每小時(shí)生產(chǎn) 98 H2O 18 Al2O3 102 Al2(SO4)3 342 各工序的物料衡算(起到活化作用) 高嶺土煅燒過程的反應(yīng)方程式: A l2O3(1)流程示意圖(2)反應(yīng)式A l2O32H2O+3H2SO4+13H2O→Al2(SO4)32H2O+3H2SO4+13H2O→Al2(SO4)3料液加入量,Fh0=+㎏/hh0㎏/hkJ/㎏ hskJ/㎏Q熱損失,=%+(1-%) =㎏Al2(SO4)3溶液溫度為115℃。 =103kJ求得Al2(SO4)103kJ。103kJ,Al2(SO4)103kJ,103kJ。103=103kJ將以上計(jì)算結(jié)果匯總在表8熱量衡算表入料吸熱(103kJ)因攪拌器的混合性能與槳葉的排出性能、剪切性能有關(guān),排出性能高可以造成液體的快速循環(huán)流動,而剪切性能高又能造成液體強(qiáng)烈的湍流擴(kuò)散,這些都是混合過程所需要的。硫酸浸取高嶺土中氧化鋁的反應(yīng)是典型的液固反應(yīng),物料在反應(yīng)過程中的體積基本不變。K〕;T,反應(yīng)溫度,K。一般說來,在滿足工藝要求的CA0和XB時(shí),通過式(7)計(jì)算平均反應(yīng)時(shí)間和反應(yīng)溫度的關(guān)系,然后綜合考慮設(shè)備投資和操作費(fèi)用,選擇適宜的反應(yīng)溫度和平均反應(yīng)時(shí)間,再計(jì)算反應(yīng)器容積。每8h處理高嶺土51噸,%,%??紤]到搪鉛工藝的實(shí)施和搪鉛時(shí)的鉛中毒, 釜體和釜蓋須采用法蘭連接。動顎懸掛在心軸上,可作左右擺動,偏心軸旋轉(zhuǎn)時(shí),連桿做上下往復(fù)運(yùn)動。簡擺顎式破碎機(jī)結(jié)構(gòu)緊湊簡單,偏心軸等傳動件受力較??;由于動顎垂直位移較小,加工時(shí)物料較少有過度破碎的現(xiàn)象,動顎顎板的磨損較小?;顒宇€板對著固定顎板做周期性的往復(fù)運(yùn)動,時(shí)而分開,時(shí)而靠近。其位于磨輥下端,鏟刀與磨輥同轉(zhuǎn)過程中把物料鏟起拋喂入磨輥輥環(huán)之間,形成墊料層,該料層受磨輥旋轉(zhuǎn)產(chǎn)生向外的擠壓力將物料碾碎,由此達(dá)到制粉目的。此時(shí)雷蒙磨粉磨工作即為開始。注:提升機(jī)輸運(yùn)物料至料倉一定量后,先停止破碎機(jī)而后再停止提升,此項(xiàng)應(yīng)由儲料量現(xiàn)時(shí)變動。過濾機(jī)廣泛應(yīng)用于化工、石油、制藥、輕工、食品、選礦、煤炭和水處理等部門。在過濾理論研究方面,濾渣層過濾阻力和孔隙率的測算、過濾速度、過濾設(shè)備的模擬和放大、稀薄液體澄清過濾和動態(tài)過濾機(jī)理,以及過濾介質(zhì)的研究,都是重要的課題。并且亦能回收酒精和簡單的回流提取。表12 一些主要設(shè)備表序號名稱數(shù)量主要參數(shù)功率KW總價(jià)萬元供貨單位1顎式破碎機(jī)2臺破碎抗壓強(qiáng)度不超過320兆帕2