Did you know...
in order to make the operation of side feeders more variable and also to facilitate the retrofitting of side feeders to existing extrusion lines, ENTEX has developed the autonomous operable side feeder.
Side feeders are installed laterally to the process section of extruders. They are used to convey fillers and additives in form of powders, fibres, granulates or pastes such as paints, chalk, reaction or entraining agents, etc. Furthermore, side feeders can be used for the degassing of the extrudate. Until today, the integration of additional side feeders into the control system of existing extruders was very complex. In order to connect an additional side feeder for material feeding or degassing, from the mechanical side, was only a roller cylinder with a corresponding lateral connection opening required.
With regard to the integration of the side feeder into the electrics as well asinto the control and safety technology of the extrusion line, the effort was much more extensive in the past. For example, a corresponding frequency converter and other electronic components for the side feeder drive had to be installed into the switch cabinet of the extruder, which often led to space problems in the switch cabinet. For the control of the side feeder it was necessary to customize the programming and visualization of the extrusion line and also safety functions and the controls of possible additional auxiliary units of the side feeder as well as the cooling water monitoring had to be integrated in a complex way.
With the new, autonomous operable side feeder, all these safety-related and control modifications are no longer necessary. This system only requires an appropriate power supply and a suitable cooling water supply. All other required functions, even the power supply and the control of additional auxiliary units, such as metal separator, dosing unit or a vacuum unit, are pre-configured in the side feeder's control system and can be controlled via the integrated touch screen display.
If appropriate interfaces are available on the extruder, autonomous operated side feeders can also be integrated into the control system of existing extrusion line.
Project study temperature control variants
The significantly lower energy costs and the more effective use of energy are not only good for the environment, it also protects your wallet.
The investment of the liquid temperature controled system is higher at the beginning, but the pure operating costs of the temperature controled system are amortized after less than 1 year and the costs of the complete extrusion system after 3 ½ years.
Why it is like that? - Clearly, the liquid temperature control and the thin wall thicknesses of the PWE make it possible to heat up by up to 50% less.
Here, the heat transfer to the product is therefore much more effective. In addition to this energy saving, there is also the “settling in” of the process, which is about 5 times as fast as with electrically temperature-controlled systems. Processes can also be effectively cooled in the shortest possible time.
Because of the modularity, heating and cooling processes can be partially eliminated. The art of process engineering lies in the omission of process steps - only possible with the modular planetary roller extruder system.
Our thermal oil devices have now a maximum flow temperature of 420°C
Electrically heated thermal oil devices were previously limited to a maximum flow temperature of 400 °C.
With a new product from Fragol, ENTEX already started last year with designing a device that is prepared for a maximum flow temperature of 420 °C. In addition to the suitability of the mechanical components, such as pumps (Fa. Speck), heaters (Fa. Kleinesdar), great attention was paid to the observation and investigation of the thermal stability of the thermal oil.
The joint studies have meanwhile shown that both, the thermal oil and the mechanical components, meet your requirements even in the high temperature ranges.
During the development, ENTEX placed great value on the detailed test runs, to be able to supply the customers with binding and sustainable technology in order to guarantee the highest possible system availability.
ENTEX now has a new generation of thermal oil devices in previously unavailable temperature ranges. - We look forward to advising you!