锤片粉碎机气力输送系统的试验研究

Experimental Study on Pneumatic Conveying System for a Hammer Mill

设计的锤片粉碎机气力输送系统试验台,在粉碎机机壳的四个不同位置设置了进风口,采用孔径为0.7 mm(开孔率5.15%)和1 mm(开孔率7.92%)筛板,用玉米进行粉碎试验的结果表明,根据粉碎机机型设计合适的机壳进风口和可调节进风口面积的结构,并且在气力输送系统中安装参数检测装置,使锤片粉碎机的气力输送系统能够适应饲料原料多品种和不同粉碎成品粒度的要求。

A designed test stand of pneumatic conveying system for a hammer mill was equipped with air inlets at four different positions of the hammer mill housing. The grinding tests for corn were carried out by using sieve plates with aperture size of 0.7mm （ percentage of aperture area 5.15% ） and 1 mm （percentage of aperture area 7.92% ） respectively. The results showed that a proper structure with air inlets at the housing and adjustable air inlet area should be designed based on the type of hammer mills and a parameter detecting device should be mounted in the pneumatic conveying system, so that the pneumatic conveying system could be adaptable for the requirements of multiple varieties of raw materials and variable particle size of ground products.