The utility model provides an experimental device for exploring the yield of flotation and desorption of coarse coal unit, flotation concentrate collection tank, upper column, lower column and bottom cone; the upper part of the upper column is connected with a flotation concentrate collection tank, the lower part of the upper column is intersected with the cloth pipe, the bottom end of the upper column is connected with the top of the lower column; the lower column is connected with the bottom column; the lower column is connected with the bottom column; the lower column is connected with the bottom column; the lower column is connected with the bottom column; the lower column is connected with the bottom column; the lower column is connected with the bottom column; the lower column is connected with the bottom column; the lower column is connected with the bottom column; the lower column is connected with the bottom column; the lower column is connected with the bottom column; the lower column is connected with the bottom column; the lower column is connected with the bottom column; the lower column is connected with the bottom column; the lower column is connected with the bottom column; the lower column is connected with the bottom column; the lower column is connected with the bottom column; The upper part of the body is intersected with the feeding elbow of the circulating pulp, the lower part of the lower column is intersected with the ventilation pipe, the port in the lower body is connected with the bubble stone, the bottom end of the lower column is connected with the wide mouth of the bottom cone; the narrow mouth of the bottom cone is connected with the circulating slurry discharge pipe; the circulating pulp outlet pipe and the circulating slurry feed elbow pass through The circulation pulp pipe is equipped with a circulating pump. The coal particles collide and adhere to the bubbles in the circulating fluid of the lower column, and the sticky coal particles are brought into the upward fluid of the upper column. At this time, some of the coal particles in the upper column are entered into the flotation concentrate collection trough together with the floating coal particles under the action of the rising water flow.
【技术实现步骤摘要】
一种探究粗粒煤单元浮选脱附产率的试验装置
本技术涉及探究煤粒脱附产率的装置,尤其是一种探究粗粒煤单元浮选脱附产率的试验装置。
技术介绍
浮选过程可分为碰撞、粘附、脱附三个阶段。1矿粒在流动矿浆中以一定的速度和气泡接近,并进行碰撞接触;2随着颗粒与气泡之间的距离不断缩小,位于二者之间的普通水分子逐渐被排开,由于普通的水分子排列无序,因此该过程很容易发生。当二者的距离接近到二者的水化膜接触时,开始进行水化膜薄化的过程,气泡与颗粒表面的水化膜开始脱水,彼此的水化膜厚度不断变小,直到临界厚度。随后气泡表面的水化膜会迅速破裂,颗粒与气泡实现真正的接触,从而形成气固液三相润湿周边,随着三相润湿周边的扩展,颗粒稳固的吸附到气泡上;3并不是所有黏附到气泡上的颗粒都会进入泡沫层被刮出,有些从气泡表面脱落重新进入矿浆。与颗粒-气泡的碰撞、粘附不同,颗粒-气泡的脱附过程更加复杂,牵涉到表面物理化学等微观作用力,其机理至今不甚明了,并且现有研究设备、研究方法仍有很多不足。
技术实现思路
本技术所要解决的技术问题在于克服现有技术缺陷,突破实验室单个气泡与煤粒群或单个煤粒与气泡群作用的局限,通过气泡群和煤粒群的作用,从统计学的层面探究了脱附产率,提供一种结构简单、实验室用的探究粗粒煤单元浮选脱附产率的装置。为了解决上述技术问题,本技术提供的探究粗粒煤单元浮选脱附产率的试验装置包括浮选精矿收集槽、上柱体、下柱体、底锥、循环矿浆入料弯管、循环矿浆出料管、通气管、气泡石及布水管;所述上柱体的上部与浮选精矿收集槽相连,上柱体的下部与布水管相贯,布水管上设有布水孔,上柱体的底端与下柱体的顶端相连;所述 ...
【技术保护点】
一种探究粗粒煤单元浮选脱附产率的试验装置,包括浮选精矿收集槽(1)、上柱体(2)、下柱体(4)及底锥(7);其特征在于:该试验装置还包括循环矿浆入料弯管(11)、循环矿浆出料管(8)、通气管(6)、气泡石(5)及布水管(3);所述上柱体(2)的上部与浮选精矿收集槽(1)相连,上柱体(2)的底端与下柱体(4)的顶端相连,上柱体(2)的下部与布水管(3)相贯;所述布水管(3)设有布水孔(15);所述下柱体(4)的上部与循环矿浆入料弯管(11)相贯,下柱体(4)的下部与通气管(6)相贯,下柱体(4)的底端与底锥(7)的广口相连;所述通气管(6)的端口与气泡石(5)相连;所述底锥(7)的窄口与循环矿浆出料管(8)相连;所述循环矿浆入料弯管(11)与循环矿浆出料管(8)通过循环矿浆管(10)相连,循环矿浆管(10)上设有循环泵(9)。
【技术特征摘要】
1.一种探究粗粒煤单元浮选脱附产率的试验装置,包括浮选精矿收集槽(1)、上柱体(2)、下柱体(4)及底锥(7);其特征在于:该试验装置还包括循环矿浆入料弯管(11)、循环矿浆出料管(8)、通气管(6)、气泡石(5)及布水管(3);所述上柱体(2)的上部与浮选精矿收集槽(1)相连,上柱体(2)的底端与下柱体(4)的顶端相连,上柱体(2)的下部与布水管(3)相贯;所述布水管(3)设有布水孔(15);所述下柱体(4)的上部与循环矿浆入料弯管(11)相贯,下柱体(4)的下部与通气管(6)相贯,下柱体(4)的底端与底锥(...
【专利技术属性】
技术研发人员:王天威,夏文成,倪超,
申请(专利权)人:中国矿业大学,
类型:新型
国别省市:江苏,32
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