本文選題：冶煉煙氣 + 高濃度SO2　； 參考：《蘭州大學(xué)》2015年碩士論文

【摘要】：近年來,隨著國內(nèi)高濃度磷肥、磷復(fù)合肥產(chǎn)業(yè)的迅速發(fā)展,對硫酸產(chǎn)品的需求量也日益增長。廣西防城港是北部灣港口城市,是距金川集團(tuán)股份有限公司海外主原料產(chǎn)地距離最近、建設(shè)條件最好的深水港口。廣西金川有色金屬有限公司是金川集團(tuán)股份有限公司在沿海地區(qū)新建的全資子公司,銅的年產(chǎn)量高達(dá)400 Kt。公司采用“雙閃”工藝煉銅,冶煉過程產(chǎn)生的濃度高達(dá)30%的SO2冶煉煙氣,是制取硫酸的有利資源。本論文主要針對該高濃度預(yù)轉(zhuǎn)化技術(shù),對投產(chǎn)后的工藝控制指標(biāo)和生產(chǎn)數(shù)據(jù)統(tǒng)計兩個方面做了一定的基礎(chǔ)分析和研究。依據(jù)轉(zhuǎn)化、吸收等基礎(chǔ)理論,對工藝指標(biāo)進(jìn)行了優(yōu)化和調(diào)控,探索得到該預(yù)轉(zhuǎn)化技術(shù)的最優(yōu)工藝指標(biāo),包括轉(zhuǎn)化率、吸收率等的最佳運行值。最終取得的結(jié)果說明,通過調(diào)整預(yù)轉(zhuǎn)化器、轉(zhuǎn)化器入口的溫度和各換熱設(shè)備之間的熱量交換,轉(zhuǎn)化率完全可以控制在大于99.95%,總吸收率≥99.98%,轉(zhuǎn)化率、總吸收率比優(yōu)化前分別提高了0.05%、0.08%。經(jīng)過對該高濃度預(yù)轉(zhuǎn)化技術(shù)工藝條件的優(yōu)化調(diào)控,使該工藝的技術(shù)指標(biāo)在全國同行業(yè)里處于領(lǐng)先水平,使該項目按期達(dá)產(chǎn)達(dá)標(biāo),同時也為國內(nèi)其他新建高濃度冶煉煙氣制酸項目起到了一定的示范、引領(lǐng)和借鑒作用。
[Abstract]:In recent years, with the rapid development of domestic high concentration phosphate fertilizer and phosphorus compound fertilizer industry, the demand for sulphuric acid products is also increasing day by day. Guangxi Fangchenggang is the port city of Beibu Gulf, which is the closest to the overseas main raw material producing area of Jinchuan Group Co., Ltd. Guangxi Jinchuan Nonferrous Metals Co., Ltd. is a newly established wholly owned subsidiary of Jinchuan Group Co., Ltd. in coastal areas. The annual output of copper is as high as 400 KT. The company adopts "double flash" process to smelt copper. The concentration of SO2 smelting flue gas is up to 30%, which is a favorable resource for sulphuric acid production. This paper mainly aims at the high concentration preconversion technology, and makes some basic analysis and research on the process control index and production data statistics after putting into production. Based on the basic theory of transformation and absorption, the process parameters were optimized and adjusted, and the optimum process parameters, including the conversion rate and the optimum operating value of the absorptivity, were obtained. The final results show that by adjusting the temperature at the inlet of the converter and the heat exchange between the various heat exchangers, the conversion rate can be completely controlled over 99.95, the total absorptivity 鈮，

本文編號：1877609