1.杂音：出现这种现象的原因主要有三方面，一是转子与侧板之间滞留所输送的粉粒物料；二是机壳与转子间隙小造成其接触；三是机壳内表面有粉料附着、粉料物融化则转子与机壳这间间隙消失。解决杂音现象的方法从侧面丝堵部位进行气体冲洗；二是扩大间隙、使其达到恰当的间隙；三是缩小转子端面面积。

1. Noise: There are three main reasons for this phenomenon: firstly, the powder material conveyed between the rotor and the side plate is stuck; Secondly, the small gap between the casing and the rotor causes contact; Thirdly, if there is powder attached to the inner surface of the casing, and the powder melts, the gap between the rotor and the casing disappears. The method to solve the noise phenomenon is to perform gas flushing on the side plug area; The second is to expand the gap and achieve an appropriate gap; The third is to reduce the area of the rotor end face.

2.振动：出现这种现象的原因主要是链条过紧，适当松一下链条即可。

2. Vibration: The main reason for this phenomenon is that the chain is too tight. Simply loosen the chain appropriately.

3.供料量不足：一是由于泄漏气体的作用使粉粒物料下落受阻碍；二是粉粒体物料的容重不同于设计值。对于第一种故障采用抽气措施即可解决；第二种提高转速，使其达到适宜转速。

3. Insufficient material supply: Firstly, due to the leakage of gas, the falling of powder particles is hindered; The second reason is that the bulk density of powder and granular materials is different from the design value. For the first type of malfunction, air extraction measures can be used to solve it; The second method is to increase the speed to reach the appropriate speed.

4.卡料：此故障主要由配管不当、使机壳变形及温度上升、超过间隙设计的温度；解决方法是在供料器的正上方或正下方使用软管；扩大间隙使其达到适宜间隙。

4. Material jamming: This fault is mainly caused by improper piping, deformation of the casing and temperature rise, exceeding the temperature specified in the gap design; The solution is to use a hose directly above or below the feeder; Expand the gap to achieve the appropriate gap.