1、供料能力：即每小時供料量t/h，換算到旋轉供料器m3/h

1. Feeding capacity: i.e. feeding capacity per hour T / h, converted to rotating feeder m3 / h

2、壓差：保證旋轉閥供料性能時，上下法蘭之間的工作壓力差kPA

2. Differential pressure: when ensuring the feeding performance of rotary valve, the working pressure difference between upper and lower flanges is kPa

3、溫度：旋轉供料器介質物料的溫度，溫度不同決定旋轉閥的間隙設定不同；高于環境較大時考慮保溫伴熱等措施，另外軸承、密封等達到其使用的極限溫度時需考慮解決辦法。

3. Temperature: the temperature of the medium material in the rotary feeder. The clearance setting of the rotary valve is different depending on the temperature; When it is higher than the environment, measures such as thermal insulation and heat tracing shall be considered. In addition, solutions shall be considered when the bearing and seal reach the limit temperature of their use.

4、漏氣量：供料器在有壓差的情況下，通過轉子和殼體的間隙的泄漏氣體的量，m3/h

4. Air leakage: the amount of gas leakage of the feeder through the gap between the rotor and the shell under the condition of differential pressure, m3 / h

5、轉速：轉子每分鐘的轉動的圈數，單位RPM

5. Speed: the number of revolutions of the rotor per minute, in rpm

6、填充系數：填充系數可以定義為沒有壓差時的容積效率。與旋轉供料器的幾何尺寸、形狀以及物料特性有關。

6. Filling factor: the filling factor can be defined as the volumetric efficiency without differential pressure. It is related to the geometric size, shape and material characteristics of the rotary feeder.

7、耐磨性：物料本身的特性，對旋轉閥氣力輸送工程殼體和轉子的磨損程度，磨損性大的物料宜選用耐磨旋轉供料器。

7. Wear resistance: according to the characteristics of the material itself, the wear degree of the shell and rotor of the rotary valve pneumatic conveying project, and the wear-resistant rotary feeder should be selected for the materials with high wear resistance.

氣力輸送系統卸料器、羅茨風機選型方案是整套設備順利運行的核心，在此卸料器生產廠家總結了以下幾條設計思路僅供參考。

The selection scheme of unloader and roots blower of pneumatic conveying system is the core of the smooth operation of the whole set of equipment. Here, the unloader manufacturer summarizes the following design ideas for reference only.

1、物料性質：考慮物料的大小、磨損性、重量、每小時處理量

1. Material properties: consider the size, abrasiveness, weight and hourly processing capacity of materials

2、輸送場地：考慮物料輸送距離、管道的彎度

2. Transportation site: consider the material transportation distance and the curvature of the pipeline

3、輸送形式：考慮投料點、目的地的個數

3. Conveying mode: consider the number of feeding points and destinations

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