【作者】 韦民红；

【导师】 贾长龄；

【作者基本信息】 安徽理工大学 ， 矿物加工工程， 2005， 硕士

【摘要】 排料装置是跳汰机的重要部件。分选精度不仅与原煤能否顺利地按比重分层,而且还与最终产品的排卸方式有关。如果排料不当便会造成床层过厚或排空,都会使已分层的物料混乱,从而影响其分选效果。因此,改进跳汰机排料装置对于提高跳汰机的分选精度和处理能力有非常重要的意义。同时,由于跳汰机是选煤厂的主要分选设备,用量大、覆盖面广,因此它在技术上的每一个进步都将产生较大的经济效益。因此,在理论研究的基础上进一步开发实用技术和设备,将会得到十分广泛的应用。 本论文简述了跳汰的发展过程,跳汰分层和分离的一些基本理论;重点分析研究了跳汰机内床层按密度、粒度分层的形成过程,特别是对跳汰机排料口附近床层的密度及粒度分布情况;阐述了新型排料装置机构设计及跳汰新型排料装置的灰分回控总体方案更多还原

【Abstract】 Discharging equipment is the important part of the jigger, the separation accuracy is not only having relation with whether raw coal can successfully separate by specific gravity, but also with having relation with the unloading way of the end product. If discharging is not appropriate ,it will result in the bed layer which is over thick or empty and make the layered material confusion, then it will weakened the separation effect. Therefore it is very magnificent for increasing the separation accuracy and productive capacity of the jig to improve discharging equipment of the jig .In the meantime , because jig is the major separation equipment in the washing plant which is used wildly and coving broadly , it will bring the big and economic performance with making any progress on the technique. Therefore, on the basis of studying theory the further developing on the practical technique and the equipments will be applied extensively.This thesis generalized the development process of the jigger and the basic theory of the jigger stratification and separation concisely . Making emphasizing on analysis and studying formation process of the bed layer inside the jig on the basis of density and size. especially distribution circumstance of the density and size in bed layer nearby discharging jaws of the jigger. Introducing the framework design and general ash feedback control scheme of the new kind Discharging equipment.更多还原