The fan impeller must be carried out according to the size and shape of the model test; the outer edge of the impeller should be turning; impeller in addition to static balance things, must be balanced. Fan assembled fans should be full-performance test on the test bench, the main test efficiency point when fans can meet the original selection of the efficiency and the pressure has reached the total resistance of the ventilation network requirements. If deviations have to be corrected. Fit width correction impeller inlet and between the current collector, this Fit width should be kept at least 3 to 6 above. Fixed impeller inlet and radial clearance between the current collector, this gap as small as possible, but later reduced the gap, making the technical requirements have been increased, generally 1-2m better.

Mouthpiece for the gap region between the housing and the blower wheel and trial and error corrections must be careful; experience has shown that reducing the gap where air pressure and can improve the efficiency of the fan, but the fan noise consequent increase must allow the fan noise correction within range. Without changing the size of the impeller, the front and rear disc size while increasing 6 to 12mm, and the corresponding amendments cover the front plate size, forming a regulator region, can effectively improve the efficiency of the fan and the pressure, and reduce aerodynamic resistance noise. After several amendments above, the efficiency of dedicated fans and efficient point in general can meet or exceed the original selection efficiency of the fan, after a trial test is correct, to finalize the dedicated fan pattern, can be put into small batch production.

Dedicated fan supporting strong, corrosion resistant matte pump can improve the safety and reliability of flour processing equipment operation, and energy-saving effect is remarkable; flour processing equipment to improve the technical performance of the integrated nature, that should be promoted and promoted Package product. Dedicated fan of batch processing equipment depends mainly on flour bulk styling products. Should and flour processing equipment replacement product complementarity and common development. In the design and development of dedicated fans, the pressure lubricating oil investment should be higher than its high point of pneumatic conveying air network in the total resistance, generally about 15% higher, in order to ensure the reliability of pneumatic conveying air network operation. Transmission dedicated fan and belt drive motors commonly used way is better, you can easy to change the fan speed to achieve the suitability requirements of a multi-purpose machine.

With the development of science and technology, conditional units or individuals can use computer processing technology, the relevant parameters and aerodynamic diagram and formulas and other relevant existing wind models spectrum input computer, using computer processing technology dedicated fan can reduce development cycle, saving manpower, material resources, the promotion of dedicated fans will play a catalytic role.