某年产25万吨锑精矿选矿厂设计 .doc
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1、某年产25万吨锑精矿选矿厂设计摘要:本次设计参考湖南锡矿山1500t/d选矿厂的现场生产情况,初步设计了某锑矿选矿厂工艺流程、设备选型、厂房配置等。根据设计任务书和现场生产指标,本次设计采用如下主要工艺流程:三段一闭路的破碎筛分流程;一段一闭路的磨矿分级流程;一次粗选三次扫选三次精选的浮选流程;锑精矿采用浓缩压滤的脱水流程。本次设计选矿厂的规模为13200t/d,给矿最大粒度420mm,原矿品位为3.6%,原矿密度为2.8 t/m3。得到的金精矿的品位为55%,回收率为87.5%。设计对工艺流程进行了工艺指标计算,包括破碎、筛分、磨矿、浮选(包括矿浆流程)和脱水流程。对破碎、筛分、磨矿、分级、
2、浮选及脱水设备进行了选择计算,最终确定了工艺所需的工艺设备。设计还进行了厂房的总体布置,并进行了厂房内的设备配置。根据选厂的地形条件,沿山坡地布置,其中,粗碎、中细碎、筛分厂房分开布置。磨矿浮选共厂房配置,其中磨矿采用纵向配置,浮选机采用横向配置。浓缩机配置在露天,过滤机与精矿仓配置在厂房内。完成了工艺流程图、磨矿数质量流程图、破碎数质量流程图、矿浆数质量流程图、设备形象联系图、破碎厂房平面布置图、主厂房平面布置图、脱水厂房平面布置图共8张图纸。关键词:选矿厂设计 ; 锑矿 ; 浮选 Design an annual out-put of 250 thousand tons of antimo
3、ny concentrate dressing plantAbstract: the field production conditions in the design of Hunan tin mines 1500t/d concentrator, the preliminary design of the ore dressing plant process flow, equipment selection, plant configuration. According to the design task book and field production index, use the
4、 following process: three a closed-circuit crushing and screening process; a closed-circuit grinding grading process; one roughing three scavenging three cleaning flotation process; antimony concentrate by water flow from the concentrate filter. The design of concentrator scale is 13200t/d, maximum
5、size of 420mm ore, ore grade is 3.6%, the density is 2.8 t/m3. The gold concentrate grade is 55%, the rate of recovery was 87.5%.Design the process calculation of process, including crushing, screening, grinding, flotation (including the pulp flow) and dehydration process. The crushing, screening, g
6、rinding, classification, flotation and dewatering equipment selection calculation, and ultimately determine the process equipment required for the process.Design has also carried on the overall layout of the plant, and the plant equipment. According to the selected terrain conditions, which moves al
7、ong the hillside, layout, coarse crushing, crushing, screening plant in separated arrangement. Grinding flotation is plant configuration, in which the vertical configuration of grinding, flotation machine adopts horizontal configuration. Thickener configuration in the open air, filter and concentrat
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