本文關(guān)鍵詞： 微細(xì)粒赤鐵礦 陽離子反浮選 新型捕收劑 浮選工藝　出處：《華北理工大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：赤鐵礦是我國最重要的鐵礦資源,其儲量最大,分布最廣,資源儲量達(dá)到200多億t,占我國鐵礦總儲量的50%以上,具有巨大的開發(fā)利用價(jià)值和潛力。根據(jù)司家營礦區(qū)赤鐵礦浮選給礦的特點(diǎn),開發(fā)出適用于司家營選礦廠的陽離子反浮選工藝,實(shí)現(xiàn)簡化藥劑制度,降低浮選成本的目的。陽離子捕收劑篩選試驗(yàn)中,通過四種新型陽離子捕收劑在不同的條件下的粗選試驗(yàn),篩選出較理想的捕收劑為HBLH-1和HBLH-2。藥劑制度試驗(yàn)中,利用單因素條件試驗(yàn)和正交試驗(yàn)法確定HBLH-1和HBLH-2合理的藥劑制度,最終,只有捕收劑HBLH-1得到了較好的試驗(yàn)指標(biāo)。在粗選捕收劑用量300g/t,抑制劑用量1500g/t,精選捕收劑用量75g/t的藥劑制度下經(jīng)過一次粗選一次精選成功得到精礦品位65.22%,回收率70.83%的良好指標(biāo)。流程試驗(yàn)中,為保證閉路流程試驗(yàn)中的精礦品位,開路流程試驗(yàn)中將捕收劑HBLH-1的藥劑用量進(jìn)行了調(diào)節(jié),在粗選捕收劑用量300g/t,抑制劑用量1500g/t,精選捕收劑用量100g/t,掃選抑制劑用量均為600g/t的藥劑制度下,經(jīng)過一粗一精二掃的開路流程獲得精礦品位67.03%、回收率65.50%、尾礦品位7.33%的試驗(yàn)指標(biāo)。最終,穩(wěn)定的閉路流程得到浮選指標(biāo)為精礦品位65.10%、回收率85.93%、尾礦品位11.91%。機(jī)理分析中,從礦物表明的吸附自由能,溶液中化學(xué)平衡和礦物表面動(dòng)電位變化等方面分析了陽離子反浮選過程的反應(yīng)原理。
[Abstract]:Hematite is the most important iron ore resource in China. Its reserves are the largest and most widely distributed. The reserves of hematite amount to more than 20 billion tons, accounting for more than 50% of the total reserves of iron ore in China. According to the characteristics of hematite floatation feed ore in Sijiaying mining area, a cationic reverse flotation process suitable for Sijiaying concentrator is developed, and the reagents system is simplified. The aim of reducing the cost of flotation. In the screening test of cationic collector, the ideal collector is HBLH-1 and HBLH-2in the experiment of screening cationic collector under different conditions. The rational medicament system of HBLH-1 and HBLH-2 was determined by single factor conditional test and orthogonal test. Only the collector HBLH-1 got a better test index. The concentrate grade of 65.22g / t was obtained under the system of crude collector dosage 300g / t, inhibitor dosage 1500g / t, and selective collector dosage 75g / t. After one rough selection, the concentrate grade was 65.22g / t, and the recovery rate was 70.83%%. Good indicators. In process testing, In order to ensure concentrate grade in closed-circuit process test, the dosage of collector HBLH-1 was adjusted in open-circuit process test. Under the system of 300 g / t of crude collector, 1500 g / t of inhibitor, 100 g / t of selected collector, and 600 g / t of scavenging inhibitor, Through the open-circuit process of one coarse, one fine and two sweep, the concentrate grade is 67.03, the recovery rate is 65.50 and the tailings grade is 7.33%. Finally, the stable closed-circuit process obtains the flotation index of concentrate grade 65.1010, recovery rate 85.93 and tailing grade 11.91.Mechanism analysis, The reaction principle of cationic reverse flotation process was analyzed from the aspects of adsorption free energy, chemical equilibrium in solution and change of mineral surface dynamic potential.
【學(xué)位授予單位】：華北理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TD951

【參考文獻(xiàn)】

相關(guān)期刊論文 前7條

1 駱華寶;王永基;胡達(dá)驤;張之武;;我國鐵礦資源狀況[J];地質(zhì)論評;2009年06期

2 余永富;我國鐵礦資源有效利用及選礦發(fā)展的方向[J];金屬礦山;2001年02期

3 高太;郭小飛;袁致濤;韓躍新;;我國赤鐵礦選礦技術(shù)現(xiàn)狀與發(fā)展趨勢[J];金屬礦山;2010年08期

4 余永富,段其福;降硅提鐵對我國鋼鐵工業(yè)發(fā)展的重要意義[J];礦冶工程;2002年03期

5 胡龍;鄭懷昌;肖剛;;鐵礦浮選工藝的發(fā)展[J];現(xiàn)代礦業(yè);2010年01期

6 王偉之;陳麗平;趙劉備;李富平;;充填浮選柱在赤鐵礦反浮選中的應(yīng)用試驗(yàn)研究[J];礦山機(jī)械;2014年02期

7 樊巖;荊龍;朱申紅;;難選鐵礦反浮選捕收劑的研究與應(yīng)用現(xiàn)狀[J];山東冶金;2011年06期

相關(guān)碩士學(xué)位論文 前1條

1 劉閱兵;赤鐵礦選礦新工藝試驗(yàn)研究[D];昆明理工大學(xué);2007年

，

本文編號：1550245