旋轉供料器制造精度高，具備鎖氣性能，也被稱作旋轉閥、鎖氣閥。其結構通常包含帶多個葉片的轉子，在固定機殼內轉動時，上方落下的物料會填充在葉片間隙中，隨著轉子轉動被輸送至下方，核心作用是完成物料輸送與輸送量控制。這種設備的高精度制造工藝，使其鎖氣性能更為可靠。

　　The rotary feeder has high manufacturing accuracy and air locking performance, also known as rotary valve or air locking valve. Its structure usually includes a rotor with multiple blades. When it rotates inside a fixed casing, the material falling from above will fill the gap between the blades and be transported to the bottom as the rotor rotates. Its core function is to complete material transportation and control the transportation volume. The high-precision manufacturing process of this device makes its air locking performance more reliable.

　　料封泵是一種粉狀物料氣力輸送設備，屬于低壓稀相輸送類型，借助高速氣流的引射效應輸送粉狀物料，在當量距離 450 米、提升高度 40 米的范圍內使用效果最優。目前廣泛應用于粉煤灰、氧化鋁粉、干窯灰、焦粉、水泥粉料等干燥松散粉料的中短距離輸送場景。

　　Material sealing pump is a type of pneumatic conveying equipment for powdered materials, belonging to the low-pressure dilute phase conveying type. It uses the injection effect of high-speed airflow to transport powdered materials, and has the best performance within an equivalent distance of 450 meters and a lifting height of 40 meters. At present, it is widely used in the medium to short distance transportation of dry and loose powder materials such as fly ash, alumina powder, dry kiln ash, coke powder, cement powder, etc.

　　下面詳細對比旋轉供料器與料封泵的差異：

　　Below is a detailed comparison of the differences between the rotary feeder and the sealing pump:

　　輸送能力與輸送距離：兩者的氣源通常均為羅茨風機，因此輸送能力相近。旋轉供料器的最佳輸送距離為 45-75 米，最遠可達 300 米；料封泵的輸送距離約為 30-500 米。

　　Conveying capacity and conveying distance: The air source for both is usually a Roots blower, so the conveying capacity is similar. The optimal conveying distance for the rotary feeder is 45-75 meters, with a maximum distance of 300 meters; The conveying distance of the material sealing pump is about 30-500 meters.

　　工作壓力：料封泵與旋轉供料器一般采用羅茨風機供氣，工作壓力通常在 0.1 兆帕以下。

　　Working pressure: The sealing pump and rotary feeder generally use Roots blower for gas supply, and the working pressure is usually below 0.1 megapascal.

　　運行方式：兩者均采用連續式運行，工作過程中進料與輸送同步進行。

　　Operation mode: Both adopt continuous operation, and the feeding and conveying are synchronized during the working process.

　　輸送濃度：旋轉供料器屬于懸浮流稀相輸送，物料呈懸浮狀態，基本不會造成管道堵塞；料封泵僅能進行低濃度輸送，輸送過程中需防止因濃度升高導致管道堵塞或料封層被吹穿。

　　Transport concentration: The rotary feeder belongs to the suspended flow dilute phase transport, and the material is in a suspended state, which basically does not cause pipeline blockage; The material sealing pump can only carry out low concentration transportation. During the transportation process, it is necessary to prevent pipeline blockage or blowing through the material sealing layer due to the increase in concentration.

　　輸送速度：旋轉供料器作為稀相輸送設備，輸送速度比料封泵稍快，對管道的磨損程度略大于料封泵，但兩者差異不大。

　　Conveying speed: As a dilute phase conveying equipment, the rotating feeder has a slightly faster conveying speed than the material sealing pump, and the degree of wear on the pipeline is slightly greater than that of the material sealing pump, but the difference between the two is not significant.

　　輸送管路：旋轉供料器可實現多個下料口共用一根輸送管；料封泵通常無法多泵共用一根管路，多為一臺泵對應一根輸送管，當存在多個下料口時，管路布置會更為復雜。

　　Conveyor pipeline: The rotating feeder can achieve multiple discharge ports sharing one conveyor pipeline; Material sealing pumps usually cannot share the same pipeline with multiple pumps, and often have one pump corresponding to one conveying pipeline. When there are multiple discharge ports, the pipeline layout will be more complex.

　　成本：相同輸送能力的旋轉供料器成本遠低于料封泵。憑借多方面優勢，不少場景已逐步用旋轉供料器替代料封泵，行業內在氣力輸送系統設計中也更傾向于選擇旋轉供料器。

　　Cost: The cost of a rotary feeder with the same conveying capacity is much lower than that of a sealing pump. With various advantages, many scenarios have gradually replaced material sealing pumps with rotary feeders, and the industry also tends to choose rotary feeders in the design of pneumatic conveying systems.

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