DHS3665香蕉筛设计.doc
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- DHS3665 香蕉 设计
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1、摘 要近年来随着煤矿开采能力和入洗原煤量的提高,作为物料分级筛选的主要设备振动筛也不断向大型化发展。振动筛是一种广泛用于将松散物料分为两种或多种粒度级别的设备,主要由筛箱、筛网、激振器、支撑弹簧、底座等组成。振动筛工作时,入料端物料堆积,行进慢,常堆积,不利于透筛,筛分率低。而出料端,物料薄,行进快,筛分率相对高。这个问题一直困扰振动筛产量和筛分效率的提高。筛面为以整体平面的筛箱,对入料端和出料端的不同特点,都取同样的激振力和抛射系数,较难提高产量和筛分效率。所以根据普通振动筛的设计经验确定了本次设计的振动筛为等厚筛。即把筛面分成不同倾角的五段,使其具有不同的抛射系数值,以适应物料从入料端到出
2、料端的不同特点,实现物料等厚筛分,提高了产量和筛分效率,为解决之前的问题开辟了一条简捷的路子。本次设计对DHS3665型香蕉振动筛的工作原理、结构设计、激振器设计以及减振装置等行进了阐述,对动力学方程及工作参数等进行了设计计算。 关键词: 筛分; 等厚; 振动筛; 筛面倾角; 自同步; 结构设计; 参数选择ABSTRACTIn recent years, with the ability of coal mining and coal washing capacity of the higher classification as a selection of main equipment m
3、aterial - vibrating screen has been the large-scale development. Vibrating screen is a widely used material is divided into two or more loose granular level of equipment, mainly from the screen box, screen mesh, vibrator, support springs, base and other components.While the vibrating screen is worki
4、ng, feed-side packing materials, moving slowly, often stacked, not conducive to through the screen, screening is low. Out of the material side, the material is thin, fast moving, screening rates were relatively high. This problem has plagued shaker production and screening efficiency. Screen surface
5、 to the overall plane of the screen for the box, on the feed side and the discharge end of the different characteristics, all take the same exciting force and the ejection factor, more difficult to increase production and screening efficiency. Therefore, according to the experience of ordinary vibra
6、ting screen design of this set was so thick sieve shaker. Screen surface that is divided into five sections with different inclination, it has a different coefficient projectile to meet the material from the feed-ended discharge end of the different characteristics of the material in thickness scree
7、ning, increased production and screening efficiency, to solve the problem before the road opened a simple.The design thickness of the vibrating screen type DHS3665 working principle, structure design, shaker design and road vibration damping devices are described, and work on the kinetic equation pa
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