4. General Information
4.1. DESCRIPTION
4.2. OPERATING PRINCIPLE
A blender consists, basically, of a casing and a centrifugal pump impeller which are mounted verti-
cally. The following three parts can be distinguished:
-
the hopper, located at the top, is the solid material area, which is added using a butterfly valve
with regulable handle or with pneumatic drive.
- the middle area consists of the venturi, which is the blender’s suction and where the liquid is
introduced.
- the mixing chamber, located at the bottom, is where the liquid and solid material are meet and
the mix is produced.
The M-226 blender has a compact design, the hydraulic part is joined to the motor and the connec
-
tions are clamp type.
The M-440 blender has the hydraulic part and motor separated and they are mounted on a baseplate.
The transmission is through pulleys mounted beneath the baseplate.
All the parts in contact with the product are manufactured in 1.4404 (AISI 316L) stainless steel.
The standard motor complies with IEC standards, with IP-55 protection and class F insulation.
The internal venturi, where the aspiration of the fluid is produced, has an annular double-wall pipe,
as shown in figure 02.002.32.0006, that keeps the liquid and powder separate until they enter the
mixing chamber. This pipe prevents the powder from becoming damp.
The suction created by the blender impeller sucks the powder from the hopper through the internal
venturi to the mixing chamber. The other pipe is used to introduce the liquid towards the impeller. The
liquid enters the mixing chamber tangentially, following the same rotating direction as the impeller. In
this way, the powder-inlet pipe remains dry while the blender is in operation.
If the inlet pipe appears to be blocked, check that the rotating direction of the impeller is correct and/
or that the distribution assembly is correctly assembled.
To check the distributor installation, draw a continuous arrow from the inlet to the outlet without chan-
ging direction as shown in figure 02.002.32.0007.
During normal operation, a vortex is formed in the
centre of the impeller, sucking the powder through the internal venturi. If the vortex is not formed, as
shown in figure 02.002.32.0008, the powder might become damp and flocs may form in the mixture;
the inlet pipe might even become blocked.
02.002.32.0006
02.002.32.0008
02.002.32.0007
Correct
Incorrect
General Information
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INOXPA S.A.U.
02.002.30.02EN · (0) 2021/04