对比分析两种钾镁肥生产工艺
|
摘要
文章从原料、磨矿、生产条件、浮选控制以及系统收率等多方面对硫酸钾镁肥先浮选后转化和先转化后浮选两条生产工艺路线进行了对比分析,简析各自的特点和局限性。结果表明:"先转后浮"工艺对原料品位要求5.5%以上,前系统生产稳定,但产品细晶含量较高,干燥系粉尘问题严重;"先浮后转"工艺对温度变化敏感,浮选泡沫粘度大,流动性性差,脱卤困难。
In this article,two kinds of potassium magnesium fertilizer production process of flotation-transform and transform-flotation are contrasted with each other in terms of the raw materials,grinding,production conditions,flotation control,system yield and other factors. The characteristics and limitations of the two process were analyzed. The results show that: the flotation-transform process requires material grade above 5. 5%. The former system is stable,but the fine grain content of the product is high,and the dust problem of the drying system is serious. The process of flotation-transform is sensitive to the temperature change,the viscosity of the flotation foam is large,the fluidity is poor,and it is difficult to filter.
In this article,two kinds of potassium magnesium fertilizer production process of flotation-transform and transform-flotation are contrasted with each other in terms of the raw materials,grinding,production conditions,flotation control,system yield and other factors. The characteristics and limitations of the two process were analyzed. The results show that: the flotation-transform process requires material grade above 5. 5%. The former system is stable,but the fine grain content of the product is high,and the dust problem of the drying system is serious. The process of flotation-transform is sensitive to the temperature change,the viscosity of the flotation foam is large,the fluidity is poor,and it is difficult to filter.
引文
[1]汪家铭.硫酸钾镁肥生产现状与市场前景[J].无机盐化工,2009(1):8-11.
[2]王长青,宋彭生.硫酸盐型盐湖卤水天然制取软钾镁矾[J].应用化学,1991,8(1):28-32.
[3]曹海英,孙衍忠.硫酸盐型卤水制取软钾镁矾的试验研究[J].化工矿物与加工,2006(8):14-16.
[4]李刚,吴景泉.利用盐田钾镁混盐矿制取软钾镁矾的研究[J].盐湖研究,1998,6(2-3):49-52.
[5]李昱昀,高洁.制取硫酸钾镁肥的相图分析及计算[J].海湖盐与化工(现《盐科学与化工》),2006,35(3):19-21.
[6]Yalamanchili MR、Kellar JJ、Miller JD Adsorption of collector colloids in the flotation of alkali halide particles[J].International Journal of Mineral Processing,1993,39:137-153.
[7]牛自得,程芳琴.水盐体系相图及其应用[M].天津:天津大学出版社,2002:261-264.
[8]赵国勇,符宇航,魏星.温度对盐粒度的影响探索[J].中国井矿盐,2014(2):7-9.
[9]张占良,申春玲.软钾镁矾结晶试验研究[J].内蒙古石油化工,2009(33):19-20.
[10]GB/T 20937-2007,硫酸钾镁肥[S].
[2]王长青,宋彭生.硫酸盐型盐湖卤水天然制取软钾镁矾[J].应用化学,1991,8(1):28-32.
[3]曹海英,孙衍忠.硫酸盐型卤水制取软钾镁矾的试验研究[J].化工矿物与加工,2006(8):14-16.
[4]李刚,吴景泉.利用盐田钾镁混盐矿制取软钾镁矾的研究[J].盐湖研究,1998,6(2-3):49-52.
[5]李昱昀,高洁.制取硫酸钾镁肥的相图分析及计算[J].海湖盐与化工(现《盐科学与化工》),2006,35(3):19-21.
[6]Yalamanchili MR、Kellar JJ、Miller JD Adsorption of collector colloids in the flotation of alkali halide particles[J].International Journal of Mineral Processing,1993,39:137-153.
[7]牛自得,程芳琴.水盐体系相图及其应用[M].天津:天津大学出版社,2002:261-264.
[8]赵国勇,符宇航,魏星.温度对盐粒度的影响探索[J].中国井矿盐,2014(2):7-9.
[9]张占良,申春玲.软钾镁矾结晶试验研究[J].内蒙古石油化工,2009(33):19-20.
[10]GB/T 20937-2007,硫酸钾镁肥[S].