First, the feeding stage is the starting part of the screw extruder. The material is fed into the screw system of the extruder through the feed port. Usually, the material will be pre-processed at the feed port, such as crushing or mixing, to ensure its uniformity and suitable conditions for extrusion.
Second, screw conveying. The core component of the screw extruder is the screw, which rotates along the spiral groove of the machine to push the material forward. The rotation of the screw not only realizes the conveying of the material, but also gradually heats and pressurizes the material through friction and shearing. The design of the screw can include different spiral shapes and sections to adjust the residence time and processing effect of the material in the extruder.
| Model | Power | Feeder | Cutter | Capacity | Dimension | Weight |
| DGP40 | 4KW | 0.4KW | 0.4KW | 0.04-0.05T/H | 1400*1030*1200MM | 240KG |
| DGP50 | 11KW | 0.4KW | 0.4KW | 0.06-0.08T/H | 1400*1030*1200MM | 320KG |
| DGP60 | 15KW | 0.4KW | 0.4KW | 0.12-0.15T/H | 1450*950*1430MM | 480KG |
| DGP70 | 18.5KW | 0.4KW | 0.4KW | 0.18-0.25T/H | 1600*1400*1450MM | 600KG |
| DGP80 | 22KW | 0.4KW | 0.75KW | 0.3-0.35T/H | 1850*1470*1500MM | 800KG |
| DGP90 | 30KW | 1.1KW | 1.5KW | 0.4-0.45T/H | 1900*1500*1600MM | 1200KG |
During the heating and pressurization process, the material is gradually heated under the action of the screw, usually using electric heating or steam heating. At this time, the temperature and pressure of the material gradually increase, reaching a certain heat and pressure condition, so that the starch granules of the material are gelatinized.
The extrusion stage is the key conversion process. The material is discharged through the die port of the extruder under high temperature and high pressure. The die design of the extruder determines the shape and size of the feed. When the material enters the low-pressure environment from the high-pressure environment, the internal steam and gas expand rapidly, causing the volume of the material to increase significantly.
1. Pay attention to safety during operation to avoid accidents.
2. The equipment maintenance of the fish feed extruder is also very important. Regularly check and clean the equipment to ensure that the equipment can operate stably for a long time.
3. The operator needs to have certain professional skills and experience, and understand the working principle and equipment operation process of the fish feed extruder.
In short, the production process of the fish feed extruder is relatively complicated, and certain operating skills and experience are required to produce fish feed with stable quality and good taste. I hope this article can help you.