我们知道，气力输送被广泛应用于各行各业。近年来，随着建材行业的快速发展，由于生产效率和产品质量要求越来越高，所以自动化生产成为了行业发展的重要方向。而气力输送是自动化生产系统中的“高速公路”，是连接各个工序不可或缺的部分。

We know that pneumatic conveying is widely used in all walks of life. In recent years, with the rapid development of building materials industry, due to the higher and higher requirements of production efficiency and product quality, automatic production has become an important direction of industry development. Pneumatic conveying is the "highway" in the automatic production system and an indispensable part of connecting various processes.

我们的粉体气力输送在建材行业主要输送过的物料有碳酸钙、氧化钙、氢氧化钙、石灰石粉、石灰粉、生石灰粉、熟石灰、石膏粉、粉煤灰等等。在众多建材行业的输送项目中，有碳酸钙密相输送、粉煤灰料封泵输送、石膏粉供料器输送、石灰石粉稀相输送、氢氧化钙仓泵输送。还有碳酸钙、PE、小苏打等物料的计量配料系统。

Our powder pneumatic conveying in the building materials industry mainly conveys calcium carbonate, calcium oxide, calcium hydroxide, limestone powder, lime powder, quicklime powder, hydrated lime, gypsum powder, fly ash and so on. Among the transportation projects in many building materials industries, there are calcium carbonate dense phase transportation, fly ash material sealing pump transportation, gypsum powder feeder transportation, limestone powder dilute phase transportation and calcium hydroxide silo pump transportation. There are also metering and batching systems for calcium carbonate, PE, baking soda and other materials.

不管用哪种输送形式，其工作原理都是利用具有一定流动速度的空气作为动力装置，在运输管道中输送松散物料的装置，也被称为气流输送。那每种输送形式又是如何确定的呢？每种输送形式的确定需要根据不同的物料参数及不同的工况来确定。那需要研究物料和工况中哪些参数呢？

No matter what kind of conveying form is used, its working principle is to use the air with a certain flow speed as the power device to convey loose materials in the transportation pipeline, which is also called air flow conveying. How is each form of transportation determined? The determination of each conveying form needs to be determined according to different material parameters and different working conditions. What parameters need to be studied in materials and working conditions?

仓泵气力输送系统

Silo pump pneumatic conveying system

气力输送的设计从物料性质和输送量来计算:物料方面，物理化学性质

The design of pneumatic conveying is calculated from the material properties and conveying capacity: in terms of materials, physical and chemical properties

物理性质：粒径、容积密度、含水率、温度、流动性、破碎性、吸湿性等

Physical properties: particle size, bulk density, moisture content, temperature, fluidity, fragmentation, hygroscopicity, etc

化学性质：腐蚀性、毒性等一般采用物料的平均粒径、形状不同、物料的流动性不同

Chemical properties: corrosivity, toxicity, etc. generally, the average particle size, shape and fluidity of materials are different

流动性好坏用静止角表示物料的化学性质、密度和硬度关系到设备的磨损，根据其程度选定设备的类型、结构及材质。

The fluidity is expressed by the static angle. The chemical properties, density and hardness of materials are related to the wear of equipment. The type, structure and material of equipment are selected according to its degree.

因设备的容量和规格必须根据单位时间内的输送量来确定。气力输送的设计需要工况参数：输送量、输送距离（垂直距离好水平距离）、来料方式、弯头个数、末端工艺等。当我们充分了解了参数后，才可以进行系统的设计和气力输送设备的选型。

Because the capacity and specification of the equipment must be determined according to the conveying capacity per unit time. The design of pneumatic conveying requires working condition parameters: conveying capacity, conveying distance (vertical distance, good horizontal distance), incoming material mode, number of elbows, end process, etc. When we fully understand the parameters, we can design the system and select the pneumatic conveying equipment.

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