In the field of production of chocolate, compounds, creams for spreading, ice-creams and biscuits coating, alternative process have reached in the recent years levels which give products qualitatively comparable to those obtained by conventional methods. Thanks to recent technical-scientific and technological acquisitions and to the use of innovative materials.
Using technological innovation with a view of improving the quality of the product and to energy saving ME.TRA proposes the ME-MRC, in alternative to the traditional lines-mixer, roll refiners and conches - which are extremely cumbersome and expensive with regards to the investment, conduction and energy consumption.
A) Rapid vertical mixer for raw materials mixing, made of a tank in sheet stainless steel AISI 304, double wall, for heating by water at atmosphere pressure, complete with expansion pot. The mixer is also connected to the water cooling system during the grinding cycle. On the top of the mixer, a heated tank adds the lecithin according to the PLC program.
B) High speed mixing propeller "cowless" type in stainless steel, out of axis versus the central shafts, for the quick homogenization of any type of mixture; hinged upper cover for inspection and raw material loading; protection grill; hot and cold water circulation for mixer and technological pipings by means of a pump.
C) Gear pump with adjustable speed motor for feeding of the mixture to the mill.
D) Vertical ball mill, composed of a double walled grinding chamber, with thermostatic control also nocturnal, having internal lining, shaft, arms and grinding balls in special alloy with high resistance to mechanical abrasion. The stirring shaft and arms are hollow, in order to allow during grinding and according to the various cases the controlled and programmed input of Air/O2 and N2.
Air/O2 which have been filtered and sterilized beforehand:
- In the presence of oxygen to facilitate oxygenation to obtain a real conching effect.
- In inert environments (N2 when needed) in order to prevent the oxygenation.
E) Gear pump for transfer of the product after the mill.
F) Continuous device ME-FLU, which thanks to the mechanical transfer of shear stress improves the rheological characteristic of the product.
G) Control panel with PLC.
The plant ME-MRC are supplied completely pre-assembled and pre-wired on a platform with electrical panel of control and command; with setting and signaling of process cycles via PLC.
The loading of ingredients can be effectuated from the platform, with pre-weighed quantities or by means of automatic programmable system. The plant is also available in a continuous version for various hourly capacities.