【正文】
metallurgy, national defense war industry, building materials, food processing, such as the lifeline of national economy department, has a pivotal position in the national economic development. The design on the annual output of 60000 tons of PVC distillation section for process design. Take vinyl chloride by calcium carbide acetylene method. This method is based on calcium carbide as raw materials, calcium carbide hydrolysis to produce acetylene, chlorine and hydrogen generated in chloralkali production were direct synthesis method of hydrogen chloride synthesis by acetylene and hydrogen chloride synthesis in the converter after purification thick vinyl chloride monomer, coarse after rectification for vinyl chloride monomer vinyl chloride monomer, pure PVC by suspension polymerization of vinyl chloride monomer. Determine the method of production of vinyl chloride synthesis section, after distillation section has carried on the material balance, heat balance, and equipment selection calculation. In this paper, design of calcium carbide acetylene method thick vinyl chloride production in the process can meet the requirements. Key words: PVC synthesis。通用型懸浮法聚氯乙烯樹脂可以加工成軟制品和硬質(zhì)品。 1958 年聚氯乙烯在我國(guó)開始大規(guī)模生產(chǎn),現(xiàn)在已成為發(fā)展最快的通用樹脂之一。但這種用量是很有限的。 (5) 要了解廠房?jī)?nèi)各種設(shè)備和設(shè)施的特點(diǎn)和要求,要顧及日后安裝、拆卸、維修、操作位置、巡回路線和地段。即將車間各工段及輔助房間分散在單獨(dú)的廠房?jī)?nèi)或集中合并在一個(gè)廠房?jī)?nèi),一般來 說,凡生產(chǎn)規(guī)模較大、車間各工段的生產(chǎn)特點(diǎn)有顯著差異 (如防火等級(jí)等 )。 管路設(shè)計(jì) 管路設(shè)計(jì)又稱配管設(shè)計(jì),全面叫管道布置設(shè)計(jì),它的主要工作就是確定各個(gè)設(shè)備的 管口方位圖和各個(gè)管段 (包括閥件、管件、儀表 )在空間的具體位置、安裝、連接和支撐方式等。 此次設(shè)計(jì)對(duì)年產(chǎn) 6 萬噸 PVC 精餾工段進(jìn)行了物料衡算、熱量衡算和設(shè)備選型計(jì)算。借此機(jī)會(huì),謹(jǐn)向老師表示真摯的謝意。生產(chǎn)出的粗氯乙烯純度高,乙炔的轉(zhuǎn)化率也非常高,完全滿足工業(yè)上的要求。其中管子是各種管路的主體,是機(jī)器和設(shè)備的介質(zhì)進(jìn)出口的關(guān)鍵部件。 (9) 車間外主管廊的位置及方向。 設(shè)計(jì)的基本條件 (1) 要有廠區(qū)總平面圖,已明確規(guī)定了本車間在總平面圖中所處的位置。這種方法稱為聯(lián)合法。 氯乙烯的合成、精餾、聚合一直就是氯乙烯生產(chǎn)的熱點(diǎn)問題。同時(shí)生產(chǎn)設(shè)備不斷向大型化發(fā)展。采用電石乙炔法制取氯乙烯。由于其具有難燃、抗化學(xué)腐蝕、耐磨、電絕緣性優(yōu)良和機(jī)械強(qiáng)度較高等優(yōu)點(diǎn),廣泛應(yīng)用于農(nóng)業(yè)、石油化工、輕工、紡織、化學(xué)建材、電力、冶金、國(guó)防軍工、建材、食品加工等國(guó)民經(jīng)濟(jì)各命脈部門, 在國(guó)民經(jīng)濟(jì)發(fā)展中具有舉足輕重的地位。目前主要 用懸浮法生產(chǎn),成品為某種粗細(xì)的粒狀樹脂,適宜于壓延、擠出