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筛分作业是煤炭加工的次要关键，遍及用于选择厂和选煤厂。筛分作业所用的配备多为振动筛
振动筛是一种适宜潮湿细粒级难筛物料干法筛分的振动筛分机械设备，如今国内措置难筛物料的振动筛分机械设备。振动筛保留大振幅、大振动强度、较低频率和弹性筛面的工艺特性。义务历程中不断保持最大的开孔率，从而筛分效率高、措置才干大，筛板更换方便，升高了本钱。振动筛超大筛面和大措置才干可满足现场的消耗需求。振动筛筛子的结构采纳多段筛面振动而筛箱和机架不参与振动的勾当体例，使筛子实现了大型化。
国的直线振动筛钻研不时掉队与国外，特地是大型化方面。
该想象结构与普通筛不一样，有4块侧板，中间两侧是次要的振动器安装在下面，由它向筛面传递振动力，外面两块是非主流的只起挡料板的感化。物料是颠末三个通道筛分和运输的这种构造的最大优点是横梁尺寸可以大大减小，大大降低参振质量。经济效益十分分明，而且筛型越大，效果越明显。
激振力直接由侧板传递到各个部件上,省去工字大梁,升高了筛箱重量和成本,但对筛箱结构想象提出了较高的请求,为此我对筛箱强度、刚度、重心、空间结构停止了优化设想。
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目 录
1概述 ...................................................................1
1.1筛分机构的分类 .......................................................1
1.2振动筛...............................................................1
1.3国内外筛分机械行业近况...............................................2
1.3.1筛分机械的使用.....................................................2
1.3.2国内外筛分机械的开展 ...............................................3
1.3.3国内振动筛的研发和制造能力 .........................................5
1.4筛分机械展开趋向.....................................................6
1.5振动筛的义务道理.....................................................7
1.5.1惯性振动筛的义务道理...............................................8
1.5.2直线振动筛的义务道理...............................................8
1.5.3直线振动筛筛面上物料的勾当剖析 .....................................10
2直线筛的设想 ...........................................................12
2.1振动筛的挑选.........................................................12
2.2激振器的肯定 .........................................................13
2.3三通道分法的长处.....................................................17
3直线筛结构设计.........................................................26
3.1筛箱结构.............................................................26
3.2激振器的挑选 .........................................................27
3.3筛面及其紧固装置.....................................................28
3.3.1筛面的安装型式 .....................................................28
3.3.2筛框...............................................................31
3.3.4传动体例...........................................................33
3.3.4支撑安装 ...........................................................36
4非主流工艺参数和技术参数 .................................................37
4.1单层三通道吊式直线振动筛的技术特点....................................37
4.2筛面倾角a............................................................37
4.3振动方向角B..........................................................37
4.4筛面的振幅...........................................................38
4.5筛面的振动次数 .......................................................38
4.6消耗率的计较 .........................................................40
4.7公道块的想象与计算...................................................41
4.8轴承的选取与校核.....................................................46
4.9轴的想象和校核 .......................................................47
4.10键的选择和校核......................................................50
4.11弹簧的想象计较......................................................51
4.12横梁的想象和校核....................................................52
5使用说明书.............................................................55
5.1激振器的密封与润滑...................................................55
5.2筛分机的使用和维护 ...................................................55
5.3振动筛的操纵、维护和维修.............................................56
5.4振动机的安全手艺 .....................................................56
5.5筛子的稀有缺点和消除措施
.............................................57
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