現有的粉體氣力輸送可分為兩類：

The existing pneumatic conveying of powder can be divided into two categories:

（1）稀相氣力輸送

(1) Dilute phase pneumatic conveying

風速高，物料懸浮液在垂直管內均勻分布，在水平管內飛揚，孔隙率大。物料的輸送主要依靠速度較高的空氣形成的動能，故又稱稀相動壓輸送

The wind speed is high, the material suspension is evenly distributed in the vertical pipe, flying in the horizontal pipe, and the porosity is large. The transportation of materials mainly depends on the kinetic energy formed by the air with high speed, so it is also called dilute phase dynamic pressure transportation

特點：由于物料流量大，質量流量小，顆粒與管道的碰撞摩擦嚴重，造成輸送系統能耗大、磨損大，生產效率低。適用于輸送質量小、粒徑小、流動性強的物料

Features: due to large material flow, small mass flow and serious collision and friction between particles and pipeline, the conveying system has high energy consumption, large wear and low production efficiency. It is suitable for conveying materials with small quality, small particle size and strong fluidity

（2）密相氣力輸送

(2) Dense phase pneumatic conveying

風速在8~15MS之間。物質在管道中不再均勻分布，而是處于稠密狀態，但管道沒有被物質堵塞，因此仍依靠空氣的動能輸送，稱為密相動壓輸送

The wind speed is between 8 and 15ms. The material is no longer evenly distributed in the pipeline, but in a dense state, but the pipeline is not blocked by the material, so it still depends on the kinetic energy of air, which is called dense phase dynamic pressure transportation

這種氣體輸送裝置具有高壓輸送，高真空抽吸輸送和流態化輸送。物質與氣體的比例變化很大。高壓高真空抽吸的料氣比約為15～50，流動狀態為脈動群流。對于易于運輸的粉末，料氣比可高達200以上，它以流化

The gas conveying device has high-pressure conveying, high vacuum suction conveying and fluidization conveying. The ratio of substance to gas varies greatly. The feed gas ratio of high pressure and high vacuum suction is about 15 ~ 50, and the flow state is pulsating group flow. For powder that is easy to transport, the material gas ratio can be up to more than 200, which is fluidized

混合粉體輸送系統

Mixed powder conveying system

混合輸送系統在同一輸送系統中既有正壓又有負壓。利用兩種不同系統的優點，可以應用于更復雜的運輸?；旌舷到y可以是加壓送料或負壓吸料。

The mixed conveying system has both positive pressure and negative pressure in the same conveying system. Using the advantages of two different systems, it can be applied to more complex transportation. The mixing system can be pressurized feeding or negative pressure suction.

組合輸送系統特點：可完成長距離輸送，管道結構及氣流變化較為復雜。同時，也容易造成輸送系統的磨損，特別是風機。

Characteristics of combined conveying system: it can complete long-distance conveying, and the pipeline structure and air flow change are complex. At the same time, it is also easy to cause wear of the conveying system, especially the fan.

1-吸嘴2-輸送管3-分離器4-除塵器5-負壓風機

1 - suction nozzle 2 - conveying pipe 3 - separator 4 - dust collector 5 - negative pressure fan

吸風氣力輸送裝置

Suction pneumatic conveying device

特點：負壓輸送系統是理想的系統，由于輸送管道內的壓力低于大氣壓力，管道內不存在氣體泄漏的問題，因此更適合輸送有毒有害物質。

Features: the negative pressure conveying system is an ideal system. Because the pressure in the conveying pipeline is lower than the atmospheric pressure, there is no problem of gas leakage in the pipeline, so it is more suitable for conveying toxic and harmful substances.

本文由氣力輸送設備廠家為您提供，我們的網站是：http://www.makemoore.com我們將以全心全意的熱情為您提供服務，歡迎您的訪問

This article is provided by the manufacturer of pneumatic conveying equipment. Our website is: http://www.makemoore.com We will serve you with wholehearted enthusiasm. Welcome to visit

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