Dear Mr chavannilesh

From your drawing it is clear that you want to design a continuous suction/pressure system using one lobe blower for a highly abrasive material.

Calculating such a system is very complicated as the vacuum influences the discharge.

Increased vacuum reduces the discharge airflow.

Moreover, you want to apply a lobe blower in combination with a cyclone in front of the lobe blower inlet.

As the cyclone has no 100% efficiency, the blower will wear out very quickly.

Replacing the lobe blower for a centrifugal fan is also an option, but will wear also at lower cost and makes the calculation even more difficult. ■

Dear Mr chavannilesh,

A filter unit will protect the blower better than a cyclone, that is for sure.

A flexible hose seems to be the only solution, considering the set-up of the operation.

Check with the hose supplier.

Can you also make design, whereby just a vacuum system is overhanging the bulk truck with the blower set, mounted on a common mobile frame? ■