鞍山式赤鐵礦石球磨磨礦動力學研究
發(fā)布時間:2018-12-30 13:02
【摘要】:應用MATLAB軟件對鞍山式赤鐵礦磨礦瞬時速度進行研究.礦料在球磨過程中經(jīng)歷"粗粒級快速碎磨-中粒級動態(tài)碎磨-中粒級單一碎磨"三個固有階段.0.043~0.031 mm粒級比0.105~0.043 mm粒級更早進入動態(tài)碎磨狀態(tài),容易出現(xiàn)細粒級過粉碎.與圓錐破碎機產(chǎn)品相比,高壓輥磨機產(chǎn)品在磨礦中各階段的轉(zhuǎn)折時間顯著縮短,但會更早出現(xiàn)細粒級過粉碎.生產(chǎn)中通過提高高壓輥磨機產(chǎn)品的入磨量來縮短球磨時間,在提高選廠的處理能力的同時減弱排礦產(chǎn)品細粒級過粉碎.
[Abstract]:The instantaneous grinding velocity of Anshan hematite is studied by MATLAB software. There are three inherent stages in the process of ball milling: "coarse particle fast grinding, medium grain dynamic grinding and medium grain single grinding". The particle size of 0.043 ~ 0.031 mm is in dynamic grinding state earlier than that of 0.105 ~ 0.043 mm. It is easy to smashing fine particles. Compared with conical crusher products, the turning time of high-pressure roller mill products in each stage of grinding is shortened significantly, but the fine grain-grade over-comminution will occur earlier than that of conical crusher products. In production, the ball milling time is shortened by increasing the grinding quantity of high-pressure roller mill products, and the fine grain grade over-crushing of ore discharging products is reduced while the processing ability of the separation plant is improved.
【作者單位】: 東北大學資源與土木工程學院;國土資源部多金屬礦評價與綜合利用重點實驗室;中國地質(zhì)科學院鄭州礦產(chǎn)綜合利用研究所;
【基金】:國家自然科學基金資助項目(51304175) 國家高技術研究發(fā)展計劃項目(2012AA03A508)
【分類號】:TD921.4
本文編號:2395617
[Abstract]:The instantaneous grinding velocity of Anshan hematite is studied by MATLAB software. There are three inherent stages in the process of ball milling: "coarse particle fast grinding, medium grain dynamic grinding and medium grain single grinding". The particle size of 0.043 ~ 0.031 mm is in dynamic grinding state earlier than that of 0.105 ~ 0.043 mm. It is easy to smashing fine particles. Compared with conical crusher products, the turning time of high-pressure roller mill products in each stage of grinding is shortened significantly, but the fine grain-grade over-comminution will occur earlier than that of conical crusher products. In production, the ball milling time is shortened by increasing the grinding quantity of high-pressure roller mill products, and the fine grain grade over-crushing of ore discharging products is reduced while the processing ability of the separation plant is improved.
【作者單位】: 東北大學資源與土木工程學院;國土資源部多金屬礦評價與綜合利用重點實驗室;中國地質(zhì)科學院鄭州礦產(chǎn)綜合利用研究所;
【基金】:國家自然科學基金資助項目(51304175) 國家高技術研究發(fā)展計劃項目(2012AA03A508)
【分類號】:TD921.4
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