气力输送装置属于密相中压气力输送，适用于不易破碎颗粒、粉料物料的输送。广泛应用于铸造、化工、医药、粮食的行业。

The pneumatic conveying device belongs to dense phase medium pressure pneumatic conveying, which is suitable for the conveying of particles and powder materials that are not easy to be broken. It is widely used in foundry, chemical, pharmaceutical and grain industries.

气力输送装置与输送管道、球形三通、增压器、增压弯头等组成密封输送系统，可以配自动控制电控系统，实现整个系统无人控制及配合PLC自动控制。

The pneumatic conveying device forms a sealed conveying system with conveying pipeline, spherical tee, supercharger and supercharging elbow. It can be equipped with automatic control and electric control system to realize the unmanned control of the whole system and cooperate with PLC automatic control.

气力输送装置有三种，FC同类型：

There are three types of pneumatic conveying devices, FC of the same type:

(1)吸送式气力输送装置(负压的)，它是由鼓风机在管道中造成负压，使成件物料进行运动;

(1) Suction pneumatic conveying device (negative pressure), which causes negative pressure in the pipeline by the blower to make the finished materials move;

(2)压送式气力输送装置(正压的)，在管道中由于压缩空气的作用，使物料在管道中进行运动;

(2) Pressure pneumatic conveying device (positive pressure) makes materials move in the pipeline due to the action of compressed air in the pipeline;

(3)混合式气力输送装置(正压二负压的)，在装置中部分输送管道处于压送状态，而另一部分处于负压状态，或是物料在压力作用下向一个方向移动，而返回运动是靠管道中负压作用。

(3) In the mixed pneumatic conveying device (positive pressure and negative pressure), part of the conveying pipeline is in the pressure conveying state, while the other part is in the negative pressure state, or the material moves in one direction under the action of pressure, and the return movement depends on the negative pressure in the pipeline.

根据需要压力的大小，气力输送装置又可分为，低压气力输送装置——10千帕以下，中压气力输送装置——50千帕以下，高压气力输送装置——50千帕以上，而当气力输送泵生产厂家采用空气压缩机时可达200—300千帕，甚至更高。低压气力输送装置是用于不带集装简以及输送距离受到限制的有包装的成件物料的输送，这类装置一般都是吸送式的。

According to the required pressure, the pneumatic conveying device can be divided into low-pressure pneumatic conveying device below 10 kPa, medium pressure pneumatic conveying device below 50 kPa and high-pressure pneumatic conveying device above 50 kPa. When the pneumatic conveying pump manufacturer adopts air compressor, it can reach 200-300 kPa or even higher. Low pressure pneumatic conveying device is used for the conveying of packaged materials without container and with limited conveying distance. This kind of device is generally suction conveying.

中压和高压气力输送装置是用于长距离(200—300米以上)，集装筒成件物料的输送。根据收发站或装卸站的连接特点，气力输送装置可分为单管或双管(多管)的，直线形或环形的。单管直线形气力输送装置依次连接两个或若干个输送点。物料既可正向输送也可逆向输送，或仅是单向输送。

Medium pressure and high-pressure pneumatic conveying devices are used for conveying long-distance (more than 200-300m) container materials. According to the connection characteristics of the receiving and dispatching station or loading and unloading station, the pneumatic conveying device can be divided into single pipe or double pipe (multi pipe), linear or annular. The single pipe linear pneumatic conveying device is connected with two or several conveying points in turn. Materials can be transported either in the forward direction or in the reverse direction, or only in one direction.

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