鋼渣顯熱回收利用技術(shù)研究

摘要

鋼鐵冶金行業(yè)生產(chǎn)會產(chǎn)生大量的爐渣。爐渣由于自身溫度比較高，含熱量豐富，對能源工業(yè)來說是一種很好的二次資源。本文介紹了冶金渣的種類，國內(nèi)外技術(shù)現(xiàn)狀，并分析了鋼鐵熔渣顯熱回收的技術(shù)難點 。介紹了連鑄連軋法、滾筒法、攪拌法、風(fēng)淬法、Merotec法等各種熔渣干式?；锢矸@熱回收工藝和氣體重整、煤氣化、直接生產(chǎn)產(chǎn)品等化學(xué)法顯熱回收的技術(shù)方案。著重對風(fēng)淬法的利用進行了介紹，以重鋼為對象，確定了回收利用轉(zhuǎn)爐渣顯熱的工藝流程及設(shè)備。并在此基礎(chǔ)上，分別從技術(shù)性角度和經(jīng)濟性角度分析了其可行性。

關(guān)鍵詞：冶金渣  顯熱  回收利用  回收率
 

ABSTRACT

Production of iron and steel metallurgy industry will have a lot of slag. Because of its relatively high temperature, slag, rich in calories, the energy industry is a good secondary resources. This article describes the types of metallurgical slag, domestic and foreign technology status, and analysis of heat recovery in steel slag were technical difficulties. Introduced the continuous casting and rolling method, roller method, mixing method, the wind quenching method, Merotec law and other dry slag granulation - physical methods of gas sensible heat recovery process and reforming, coal gasification, direct production of chemical products were heat recovery technology solutions. Focused on the use of wind quenching method was introduced in order to re-steel target, set sensible heat converter slag recycling process flow and equipment. And on this basis, respectively, from the technical point of view and economic point of view of its feasibility.
Keywords: metallurgical slag ; recycling ; sensible heat ; recovery
 
目錄
中文摘要 I
英文摘要 II
目錄 II
1緒論 1
1.1 冶金渣的種類 1
1.2 國內(nèi)技術(shù)研究情況 2
1.3 國外技術(shù)研究情況 2
2 熔渣的處理現(xiàn)狀 4
2.1 熔渣的利用價值 4
2.2 熔渣顯熱回收的難點 4
3 熔渣顯熱回收的工藝技術(shù) 5
3.1冷卻轉(zhuǎn)鼓法熔渣薄片狀固化工藝 5
3.2連鑄連軋法熔渣平板狀固化工藝 5
3.3 機械攪拌法熔渣造粒工藝 6
3.4 旋轉(zhuǎn)滾筒法熔渣?；に?nbsp;7
3.5 Merotec熔渣?；に?nbsp;8
3.6風(fēng)碎法熔渣顯熱回收工藝 8
3.7 旋轉(zhuǎn)杯?；墼@熱回收技術(shù) 9
3.8 綜合比較與方法選擇 12
4 以重鋼為例設(shè)計方案 13
4.1 重鋼生產(chǎn)現(xiàn)狀及基本數(shù)據(jù) 13
4.2 重鋼轉(zhuǎn)爐煉鋼生產(chǎn)工藝流程 13
4.3 轉(zhuǎn)爐鋼渣風(fēng)淬工藝流程 14
4.4 風(fēng)淬工藝主要技術(shù)參數(shù) 14
4.5主要設(shè)備及構(gòu)筑物 15
5 工藝特點、可行性分析及應(yīng)注意的問題 16
5.1 工藝特點及可行性分析 16
5.2 風(fēng)淬鋼渣時應(yīng)注意的問題 16
6 綜合評價與分析 17
參考文獻 18