气力输送设备的工作原理及日常维护事项！

Working principle and daily maintenance of pneumatic conveying equipment!

一、系统工作原理

1、 Working principle of the system

正压密相气力输送系统是利用罗茨鼓风机产生的正压空气流为输送动力，把旋转供料器从下料斗中物料不断供给下来的物料输送到后续的储料仓中。储料仓装有仓顶除尘装置，使输送到储料仓中的物料料气分离。

The positive pressure dense phase pneumatic conveying system uses the positive pressure air flow generated by roots blower as the conveying power to transport the materials continuously supplied by the rotary feeder from the hopper to the subsequent storage bin. The storage bin is equipped with a dust removal device on the top of the bin to separate the material and gas transported to the storage bin.

整个系统由罗茨鼓风机、手动插板阀、旋转供料装置、文丘里喷射装置、输送管道、管道分路阀、以及储料仓、仓顶除尘装置、电气控制系统和相关的附助设置组成。

The whole system is composed of Roots blower, manual gate valve, rotary feeding device, venturi injection device, conveying pipeline, pipeline shunt valve, storage bin, dust removal device on the top of bin, electrical control system and relevant auxiliary settings.

系统工作时启动罗茨鼓风机，由其产生高压柱状空气流，高压柱状空气流经过文丘里喷射泵，内部产生一个负压，使旋转供料器供给下来的物料被及时吸入文丘里喷射器的喷射口。物料由经输送管道输送至储料仓。然后储料仓顶部安装的仓顶除尘器使物料与输送气流分离，剩余的气流及时排出室外，也避免现场产生太多的粉尘。

When the system is working, the roots blower is started to generate high-pressure columnar air flow. The high-pressure columnar air flow passes through the venturi jet pump and generates a negative pressure inside, so that the material supplied by the rotary feeder is timely sucked into the jet port of the venturi jet. The material is transported to the storage bin through the pipeline. Then the top dust collector installed on the top of the storage bin separates the material from the conveying air flow, and the remaining air flow is discharged out of the room in time to avoid too much dust on site.

二、设备维护

2、 Equipment maintenance

1、罗茨风机：罗茨风机使用一定时间后应及时给轴承中加入相应的润滑油，使用一段时间后要及时更换齿轮油。

1. Roots blower: after the roots blower is used for a certain period of time, the corresponding lubricating oil should be added to the bearing in time, and the gear oil should be replaced in time after a period of time.

2、管道分路阀：其工作时动作气缸产生的动力使其内部的球阀切换方向，完成相应的管道换向功能，其换向时必须相应输送过程已经停止，避免输送过程正在进行，突然换向使其换向，这样换向阀受到的冲击比较大，容易卡死，且气缸受到的损伤也比较大。如果气缸动作失灵，应检查相应的气路是否通畅，气压是否达到相应的工作要求。

2. Pipeline shunt valve: when it works, the power generated by the action cylinder makes the internal ball valve switch direction and complete the corresponding pipeline reversing function. When reversing, the corresponding conveying process must have been stopped to avoid the conveying process being in progress. Suddenly changing direction makes it change direction. In this way, the reversing valve is subject to greater impact, easy to get stuck, and the cylinder is also subject to greater damage. If the cylinder fails to work, check whether the corresponding air path is unobstructed and whether the air pressure meets the corresponding working requirements.

3、旋转供料器：其工作时由电机产生的动力带动其内部的供给叶片旋转，把上部的物料不断的向下部输送。叶片与壳体之间的间隙≤0.1mm；密封性能很好，且由耐磨材料制成。如果长时间工作，耐磨片已经磨损，影响其工作，应把原来的耐磨片拆下来，更换新的耐磨片，使其工作时保持气力密封。

3. Rotary feeder: when it works, the power generated by the motor drives the internal supply blade to rotate, continuously conveying the upper material to the lower part. The clearance between blade and shell is less than or equal to 0.1 mm; It has good sealing performance and is made of wear-resistant material. If the wear-resistant plate has been worn for a long time, which affects its work, the original wear-resistant plate should be removed and replaced with a new one, so as to maintain the pneumatic seal.

4、输送管道链接牢固，整个输送管道安装完毕后，要做相应的耐压试验，确认其连接处无漏气，跑气现象。

4. The transmission pipeline is firmly connected. After the installation of the whole transmission pipeline, the corresponding pressure test shall be carried out to confirm that there is no air leakage or leakage at the connection.

5、手动滑板阀要保持动作灵活，定期把上面的盖板拆开，在相应的丝杆上加润滑油，清除丝杆上的积物，使其转动顺滑。

5. The manual sliding plate valve should keep flexible action, remove the upper cover plate regularly, add lubricating oil on the corresponding screw rod, remove the accumulation on the screw rod, and make it rotate smoothly.

6、仓顶除尘器：经过长期工作后要及时更换除尘袋，防止除尘袋空隙堵塞后影响工作效果。

6. Bin top dust collector: after long-term work, the dust bag should be replaced in time to prevent the working effect from being affected after the gap of the dust bag is blocked.

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