The structures and the use Commissioner Fan is also called rotary valve, air lock, usually is of the structure of star (as the picture1), is made up by some pieces of the rotor blade impeller, shell, seals, reducer and motor, elc. After materials in the upstream silo fall down by gravity to filf in with the gap between the leaves, they will be unloaded with rotation of the blade from the lower part .Therefore, Commissioner Fan can unload thematerials quantitatively and continually(as picture 2). Commissioner Fan is used in pneumatic system(as picture 3), for the compression or vacuum conveying system.
Commissioner Fan can feed materials to chute smoothfy and continuafly, to assure that the ratio of air and solid jn the pneumaic system, the sOlidls more steady, so to make the pneumatic conveying work normally, at the same time, it also can cut off the upper and lower pressure to lock the gas. Thus, Commissioner Fan is the important part which is commonly used in the pneumatic conveying syslem.
Commissioner Fan can be used in materials collection system as the discharger ofthestorage bin (as picture 4). It is applicabfe to the powder and the particle material It is suitable for positive/negative pressure diffetial suction syslem, so it is alwavs selecled to be used by the chemical,pharmaceutical, dry, food, cement, environmental protection, electric power and other sectors Of the projects.
1 .Dangang Brand Commissioner Fan is up and down flanged. Faces are square or round. It can also be fabricatedas per thespecial requirements from customer.
2.This dosed rotor was made by exterior grinding material,can assure very well contacting with casing
3.External installed &Temperature and pressure resistance type can be fed by materials in 300℃ temperature. Bearing on twosides can't contact powder.
關風機排料量G按下式計算：Discharging capacity is calculated as per the foilowing formula
G：0.06V.N.Y.R.K（噸/小時） G: 0.06V N Y R K(ton / h)
V-關風機容積（升/轉）V-volume of commissioner fan(I / r)
N-關風機轉速（轉/分）rotation speed of commissioner fan
Volume efficiency: r=0.8 forgranular materic r=0. 5~0.6 for powder mater iai
R-物料容量（噸/立方米）Density (ton / m3)
K-修正系數，一般取0.7~0.8 k-rectification coef-ficient.it is 0.7~0.8 usually