As one of the high and new technology of modern food engineering, the extrusion technology of twin-screw teaching experiment extruder is widely used in scientific research and teaching in universities and scientific research institutions, covering grain food, snack food and feed, brewing, and modified starch in the agricultural product processing industry. And other processing fields.
Twin-screw extrusion experiment machine is mainly composed of feeding system, backlog system, rotary cutting system, heating system, transmission system, lubrication system and control system.
Extruder feeding system, drive system, and rotary cutting system all adopt frequency conversion speed regulation, with strong power and stable operation.
Automatic lubrication and forced cooling to ensure the safe operation of the extruder.
According to different raw materials, single-screw and twin-screw feeding systems are selected to ensure uniform, stable and reliable feeding.The screw is processed by special technology, wear-resistant, anti-fatigue, and has a long service life.
Equipment system composition:
(1) Power drive system: consists of main motor and distribution box;
(2) Extrusion system: consists of screw, barrel and connecting section;
(3) Heating system: consists of a heating ring surrounding the barrel;
(4) Cooling system: consists of water jacket, water pump, and cooling pipeline;
(5) Electrical control system: motor speed control is frequency conversion speed control, the frequency converter is selected as Delta frequency converter, temperature control is a special control system, 10.5-inch true color man-machine interface, temperature and speed can be set and controlled. Display die pressure value;
(6) The machine housing is stainless steel.
The advantages of the twin-screw testing machine: the parameter detection is more intuitive, the operation is more convenient, the functionality is stronger and more professional, and the process integrity is more comprehensive. The machine is small in size, small in footprint, easy to transport, low in output, less materials wasted during the experiment cycle, and low power consumption. Disadvantages of the experimental twin-screw extruder: low output, it cannot be conventionally produced like production equipment. Due to low energy consumption and insufficient extrusion strength, the degree of expansion is lower than that of conventional production equipment. The puffing effect and taste of the food particles will be slightly lacking, which is normal.