论文部分内容阅读
混凝土搅拌机的西德标准 DIN459中将周期式和连续式搅拌机分开。周期式工作的一组搅拌机中有各种结构类型的自落式搅拌机和强制式搅拌机。下面就周期式和连续式强制式搅拌机即双卧轴式搅拌机作一叙述。这种类型的搅拌机是机械制备混凝土最早使用的搅拌设备。自1888年登记第一个用于修筑战前高速公路的搅拌机专利起,到二次大战以后几十年的恢复时期,该设备得到了卓有成效的发展。其主要原因是该机具有搅拌均匀性好、使用范围广以及有较高的经济性等优点。强制搅拌就是通过对拌和物施加作用力,使其形成一定的物料流向,从而使拌和物达到均匀分布和混合。自落式搅拌正与此
The West German standard DIN 459 for concrete mixers separates the periodic and continuous mixers. There are various types of self-dropping mixers and forced mixers in a group of mixers that work in a periodic manner. The following is a description of a two-shaft shaft mixer, a periodic and continuous forced mixer. This type of mixer is the earliest mixing device used to mechanically prepare concrete. Since 1888, the first patent for a mixer for the construction of a pre-war highway, has been registered, the equipment has achieved remarkable results since the recovery period of several decades after World War II. The main reason is that the machine has the advantages of good stirring uniformity, wide application range and high economical efficiency. Forced agitation is to exert a force on the mixture to form a certain material flow, so that the mixture is evenly distributed and mixed. Self-dropping stirring is with this