#JAK-50 #JAK-80
The Pneumatic Air Knocker is used for bulk goods with material flow problems as for instance bridge, siphon and residue formations, when high speed shakers and vibrators with soft sine-shaped oscillations are no longer effective. The effect of the knocker is comparable to that of the famous “silo hammer”, but without distorted silo spouts additionally impeding the material flow.
The Pneumatic Air Knocker produces an ideal elastic shock that is specified as the impact energy E = m/2 × v2 [kgm/s2 = Nm] and as impulse J = m × v [kgm/s = Ns]. There is no impact force or out-of-balance such as vibrators generated. The effectiveness of the knocker is evaluated according to the following rule:
If the product can be knocked off or be brought to flow by a hand hammer, the Pneumatic Knocker would also be effective. The knocker is normally controlled by an electrical control system with a solenoid valve.
The area to be knocked should be able to swing so that the impact can expand in all directions. Reinforcements of the silo walls and additional ribs should be avoided, as this increases the weight and the strength of the silo walls and thus reduces the effect of the knocker.
Malaysia
