当搅拌一体车出现缓慢的送粉现象时，螺旋输送机进料缓慢，进料时间超过2分钟，在正常进料条件下可在20秒内送出。
When the mixing truck appears slow powder feeding phenomenon, the screw conveyor feeding is slow, feeding time is more than 2 minutes, under normal feeding conditions, it can be sent out in 20 seconds.
分析了这种失败的原因：
The reasons for this failure are analyzed
影响因素主要是粉罐的送料不良和螺旋输送机的损坏。 粉末进料的不良性能的特征在于粉末拱形，粉末罐的排出口处的材料聚集，蝶阀的开口太小以及粉末罐中的材料不足。 螺旋输送机的损坏主要是由于螺旋叶片的变形，不能正常运输。
The main influencing factors are the poor feeding of powder tank and the damage of screw conveyor. The poor performance of powder feed is characterized by powder arch, material accumulation at the discharge port of powder tank, too small opening of butterfly valve and insufficient material in powder tank. The damage of screw conveyor is mainly due to the deformation of screw blade, which can not be transported normally.

方法：
resolvent:
1.打开气锤破拱装置。
1. Open the air hammer arch breaking device.
2.检查粉末罐排放蝶阀的开度，并将蝶阀保持在完全打开位置。
2. Check the opening of discharge butterfly valve of powder tank and keep the butterfly valve in full open position.
3.检查粉末罐出口处的物料是否结块。
3. Check whether the material at the outlet of powder tank is caking.
4.检查螺旋叶片是否变形。 如果变形，请将其拆下进行更正或更换。
4. Check whether the spiral blade is deformed. If it is deformed, remove it for correction or replacement.
如何避免小型搅拌机中的电击：
How to avoid electric shock in small mixer:
1.如果小型搅拌机的供电设备选择不当或不匹配，将导致触电和其他生产事故。
1. If the power supply equipment of small mixer is not properly selected or matched, electric shock and other production accidents will be caused.
2，电工是持有证书的操作人员，否则会因用电不足而引起触电等生产事故。
2. Electrician is a professional operator with certificate, otherwise, electric shock and other production accidents will be caused due to insufficient safety power consumption.
3.如果配电室的操作人员没有接受过培训，如果搅拌机缺乏用电和非法操作的知识，导致触电事故，为什么要避免触电，引起其他生产事故。
3. If the operator of the distribution room has not received training, if the mixer lacks the knowledge of electricity use and illegal operation, which leads to electric shock, why should electric shock be avoided and other production accidents be caused.
4.配电室运行规则，操作规程，警示标志，生产记录，防护设施不足可能导致触电等生产事故。
4. The operation rules, operation regulations, safety warning signs, safety production records and safety protection facilities in the distribution room may lead to electric shock and other production accidents.
5.如果没有措施防止小动物进入配电室，可能会因小动物进入而发生电气事故，这可能会导致其他事故。
5. If no measures are taken to prevent small animals from entering the distribution room, electrical accidents may occur due to the entry of small animals, which may lead to other accidents.
6.如果配电室的防雷措施不完善，将导致其他生产事故。
6. If the lightning protection measures of the distribution room are not perfect, it will lead to other production accidents.
7，高压线路下的工作容易发生电击。
7. It is easy to get electric shock when working under high voltage line.
8.供电能力和设施不符合用电要求，影响其正常使用寿命。
8. The power supply capacity and facilities do not meet the requirements for safe use of electricity, affecting its normal service life.
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