梨形搅拌机是自落式搅拌机的一种,它与双锥反转出料搅拌机和鼓筒式搅拌机相比其优点在于搅拌筒的容积利用系数高,可达0.5左右,而双锥反转出料式一般为0.2～0.26(国外有的达0.29～0.33);在公称容量相同情况下搅拌功率小;卸料迅速,结构简单;一机多用,适应性广。因此梨形搅拌机目前仍有很强的生命力。国外许多国家如日本、意大利、西德、美国、英国、苏联、法国等都在生产这种搅拌机,且已经形成了产品系列化。而我国目前只有60升、100升、250升三种规格。对机型的研究很少,譬如拌筒的合理结构尺寸,拌筒转速、搅拌叶片 Pear-shaped mixer is a type of self-dropping mixer. Compared with double-cone reversal discharging mixer and drum-type mixer, its advantage is that the volumetric utilization coefficient of the mixing drum is high, which is about 0.5, and the double cone reverses The material type is generally 0.2 to 0.26 (above 0.29 to 0.33 in some foreign countries); the stirring power is small under the same nominal capacity; the discharge is rapid and the structure is simple; one machine is widely used and has wide adaptability. Therefore, pear-shaped mixers still have strong vitality. Many foreign countries such as Japan, Italy, West Germany, the United States, Britain, the Soviet Union, and France are all producing this type of blender and have already formed a series of products. However, China currently has only three specifications of 60 liters, 100 liters, and 250 liters. There are few studies on the type of machine, such as the reasonable structure of the mixing tube size, mixing speed, mixing blade