Rotary feeder: unloader
The blade of "rotary feeder" has good wear resistance, high air lock performance, complete discharge, good fixation and compact structure. The rotary feeder uses elastic rotor, which has better airtightness and ensures normal feeding. Rotary feeder Also known as star shaped unloading valve, air lock valve, closed air device, star type unloader, rotary feeder. It is composed of valve body, transmission shaft, blade and reducer. Therefore, the rotating effect of the impeller drive belt is achieved. Rotary feeder It is used to connect the dry powder materials or small particles in the upper silo and evenly send them to the next equipment. It is a quantitative feeding tool.
1、 Specification and model
Rotary feeder (0.2MPa, pressure difference of powder feeding chamber, 0.2MPa, pressure chamber of powder feeder). Specification and model: mhrw50-mhrw1600; capacity range: 0-150m '/ h
Rotary feeder It is mainly composed of main valve (shell, end cover, impeller, sealing structure, etc.), motor reducer, protective device (sprocket, sprocket cover, etc.), exhaust port, etc. the upper and lower flanges of standard rotary feeder are circular. For special connection required by users, such as square flange and rectangular flange connection, the thickness of single flange shall be determined separately
Rotary feeder Stainless steel, stainless steel and stainless steel will be widely used in welding environment. Cast iron material is suitable for ordinary working conditions without temperature and pressure. Compared with stainless steel, the star shaped unloader made of cast steel has a lower price, and this material can be selected for those with less serious corrosion.
4、 Scope of application
Rotary feeder The device is the main tool for dust removal, air supply and other tool feeding, "Feeder" It is suitable for powder materials and granular materials. It is widely used in grain processing, chemical raw materials, plastic metallurgy, energy mining, building materials, cement, wharf and other industries with strong reliability and affordable price. It is used in malt workshop and brewing workshop of brewery to transport barley and malt Rotary feeder It is widely used in environmental protection, metal smelting, chemical industry, food, food and other industrial sectors.
5、 Selection conditions
Users should select the type according to their own material characteristics. As long as there is no pressure, no temperature and ordinary unloader, it can completely meet the requirements of field working conditions. For the material with high viscosity, it is easy to adhere to the surface of the discharger shell, which is easy to cause the material jam of the discharger, and it is easy to bring certain difficulties to the later cleaning. For the discharger of large particle materials, we will consider from two aspects, one is the problem of material jam, the other is definitely the wear resistance of the equipment itself. Generally speaking, the shell of the discharger is easy to be worn by large particles, so the wear resistance of the equipment is usually considered when the customer decides to discharge the large particle material.
It is mainly used in positive pressure or negative pressure pneumatic conveying. It has pressure resistance and air lock function. It has temperature resistance of 0-250 ° and diameter of DN 125-dn500, volume of 1l / r-100l / R and pressure resistance of 98kpa. The rotor forms are: V-shaped, P-shaped, open rotor, closed rotor, etc., with stable and reliable operation. It can be specially designed according to different installation requirements of customers, with outstanding conveying capacity, meeting the requirements of working conditions, stable operation of the system, no leakage, safe and reliable. According to the form, it can be divided into Anti jam type: anti jam feeding design, gap adjustment design according to different media, offset body, inlaid rotor and V-shaped rotor are used when necessary, which has the functions of anti-jamming and reducing crushing, various anti-jamming design combinations, pressure-resistant type: closed rotor, widely used in suction and pressure feeding pneumatic conveying systems, can effectively reduce air leakage and ensure air leakage Normal operation of force conveying, temperature resistant type: it adopts external structure and keeps the running part away from the box part contacting with materials, so that the bearing and oil seal system can work normally without the influence of high temperature. This model is especially suitable for the transportation of metal powder and ultra-fine powder to prevent these materials from invading the bearing and oil seal system. Anti sticking type: it adopts special design, which can transport normally and easily Sticky. Materials easy to agglomerate.
Usual Rotary feeder The structure is that the rotor with several blades rotates in the cylindrical casing, and the materials falling from the upper hopper are filled in the space between the blades, and are discharged with the rotation of the blades to the lower part. A pressure equalizing suction port is set on the side of the body, which can absorb the high-pressure gas brought by the impeller rotation from this port and reduce the phenomenon of gas jacking, It is conducive to the smooth falling of materials. For the pneumatic conveying system of pressure feeding and suction conveying, the system is easy to be transported, Rotary feeder It is one of the main components. It can supply materials to the conveying pipe evenly and continuously. In the separation and dust collection section of the system, it also has the function of a discharger.
Rotary feeder: unloader: http://theoxfordjazz.com/qlss-gl/141.html
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