旋轉(zhuǎn)供料器又稱星形加料器、旋轉(zhuǎn)閥、鎖氣器或星型下料器，是氣力輸送系統(tǒng)中用于均勻、連續(xù)供料的關(guān)鍵設(shè)備。其核心結(jié)構(gòu)包括帶有數(shù)個(gè)葉片的轉(zhuǎn)子、圓筒形機(jī)殼、端蓋、密封件以及由電機(jī)和減速器組成的驅(qū)動(dòng)裝置。轉(zhuǎn)子通常裝有6至10個(gè)葉片，將機(jī)殼內(nèi)空間分隔為相應(yīng)數(shù)量的格室。物料從上部料斗靠自重落入轉(zhuǎn)子葉片間的空格（格室）中，隨著轉(zhuǎn)子在電機(jī)驅(qū)動(dòng)下勻速旋轉(zhuǎn)，被攜帶的物料運(yùn)動(dòng)至下部的出料口，依靠重力或系統(tǒng)壓力卸出。這一過程實(shí)現(xiàn)了物料的連續(xù)、定量、均勻輸送。

Rotary feeder, also known as star feeder, rotary valve, air lock or star feeder, is a key equipment used for uniform and continuous feeding in pneumatic conveying systems. Its core structure includes a rotor with several blades, a cylindrical casing, end caps, seals, and a driving device composed of a motor and a reducer. The rotor is usually equipped with 6 to 10 blades, dividing the space inside the casing into a corresponding number of compartments. The material falls into the space (compartment) between the rotor blades by its own weight from the upper hopper. As the rotor rotates at a constant speed under the drive of the motor, the carried material moves to the lower discharge port and is discharged by gravity or system pressure. This process achieves continuous, quantitative, and uniform transportation of materials.

旋轉(zhuǎn)供料器具有定量供料和鎖氣的雙重功能。其“鎖氣”作用體現(xiàn)在：轉(zhuǎn)子與機(jī)殼之間的間隙出彩小，能夠有效防止系統(tǒng)內(nèi)外氣體的串通，保持氣力輸送系統(tǒng)的壓力穩(wěn)定。機(jī)體側(cè)面常設(shè)有均壓排氣口，可將葉輪回轉(zhuǎn)帶來的高壓氣體從此排走，減少氣體頂料現(xiàn)象，有利于物料的順利下落。根據(jù)轉(zhuǎn)子葉片的結(jié)構(gòu)形式，旋轉(zhuǎn)供料器主要分為D型和B型兩種：D型葉片兩端開放式，適宜輸送粉狀物料；B型葉片兩端封閉式，適宜輸送粒狀、球狀物料。

The rotary feeder has a dual function of quantitative feeding and gas locking. Its "gas locking" function is reflected in the extremely small gap between the rotor and the casing, which can effectively prevent the collusion of gases inside and outside the system, and maintain the pressure stability of the pneumatic conveying system. There is a permanent pressure equalization exhaust port on the side of the body, which can discharge the high-pressure gas brought by the impeller rotation, reduce the phenomenon of gas topping, and facilitate the smooth falling of materials. According to the structural form of the rotor blades, rotary feeders are mainly divided into two types: D-type and B-type: D-type blades with open ends are suitable for conveying powdered materials; The B-type blade is closed at both ends and suitable for conveying granular and spherical materials.

機(jī)體殼體也可根據(jù)設(shè)計(jì)分為粉料型、顆粒型、耐磨型和耐壓型等不同類型。顆粒型進(jìn)口處設(shè)置V形結(jié)構(gòu)，適用于粒料和彈性顆粒的輸送；耐磨型轉(zhuǎn)子設(shè)有可補(bǔ)償?shù)幕顒?dòng)葉片或耐磨鑲條；耐壓型端面采取特殊密封結(jié)構(gòu)，葉輪與機(jī)殼間隙出彩小，適用于高壓工況。對(duì)于高壓工況，還可在端蓋與轉(zhuǎn)軸之間設(shè)計(jì)帶充氣密封口的充氣密封圈。旋轉(zhuǎn)供料器體積小、結(jié)構(gòu)簡(jiǎn)單、運(yùn)轉(zhuǎn)維修方便，廣泛應(yīng)用于環(huán)保、冶金、化工、糧食、水泥、電力等行業(yè)的氣力輸送與除塵系統(tǒng)中。

The body shell can also be divided into different types according to design, such as powder type, particle type, wear-resistant type, and pressure resistant type. V-shaped structure is installed at the inlet of granular material, suitable for conveying granular and elastic particles; The wear-resistant rotor is equipped with compensatory movable blades or wear-resistant inserts; The pressure resistant end face adopts a special sealing structure, and the clearance between the impeller and the casing is extremely small, suitable for high-pressure working conditions. For high-pressure conditions, an inflatable sealing ring with an inflatable sealing port can also be designed between the end cap and the shaft. The rotary feeder has a small volume, simple structure, and easy operation and maintenance, and is widely used in pneumatic conveying and dust removal systems in industries such as environmental protection, metallurgy, chemical industry, grain, cement, and electricity.

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