文档介绍：实验室选粉机总体及壳体设计
摘要:
本说明书主要介绍了实验室选粉机的总体设计和壳体设计的设计思路及设计步骤。课题来源:本设计作为2005年通过鉴定的过程装备与控制工程综合实验室建设项目的继续,为粉磨前沿技术筒辊磨MWG0305的粉磨系统配套。
新型高效选粉机是为了克服离心式、旋风式选粉机撒料不均匀、分级流场不均匀等缺陷而研制成功的新型分级机。目前,得到广泛地应用的O-SEPA选粉机。他在分级原理上,与前两代选粉机相比有较大的改进,其分级气流在水平面内旋转,而且气流平稳,物料在经过撒料盘和缓冲板充分分散之后垂直下落,从上向下通过整个分级区可受到多次分级作用,因而具有分级效率高,处理物料量大,产品细度高的等特性。具有以下等特点:
粉料状物料粒径在分选精度高,因此分级效率高,可以提高产量;可以生产粒度较窄的产品,改变涡轮的转速可在10~200m范围内调节分级粒径;由于可以用含尘气体作为分级气流,因此粉碎分级系统非常紧凑,并且有冷却功能;可以跟辊磨或辊压机组合粉碎一分级系统,简化工艺流程提高粉碎效率;
此次设计的O-SEPA式选粉机仍然存在许多问题,如水泥细度不稳定,尤其在更换水泥品种时,,物料分散不均匀,不充分,细粉分离效率低,不灵敏等,仍不能改变涡流调整叶片和导向叶片转速相互矛盾的缺点,所以O-SEPA式选粉机还有许多可以改进的地方。
关键词:N500选粉机;壳体;转子
Abstract:
This paper mainly introduces the design idea and design steps of the overall design and shell design powder machine selected laboratory. Source: This design as the 2005 prehensive laboratory of process equipment and control engineering construction projects identified continues, supporting the grinding system for grinding technology tube roller mill MWG0305.
The new high efficiency separator is to e the centrifugal, cyclone separator and uneven material, classification flow uneven defects and to develop a new classifier for ess. At present, obtains the widespread application of O-SEPA powder selecting machine. He in the hierarchical principle, compared with the previous two generations of powder selecting machine is greatly improved, the classifier rotating in a horizontal plane, and the air flow, material falling vertically after fully dispersed through the material spreading disk and buffer plate, from top to bottom through the staging area can be multiple classification, thus has the classification efficiency high, large handling capacity, characteristics of the product fineness is high. Has the following characteristics:
Powdery material particle size in the separation of high precision, thus high classification efficiency, can improve the yield; can produce size narrow product, change the speed of the turbine is available in the 10~200 m range