What Is Dry Type Fish Feed Extruder?
There are two kinds of fish feed machines for making floating aquatic feed, one is dry type fish feed extruder, the various other is wet type fish feed extruder.
The dry type fish feed extruder is generally utilized for the production of aquatic feed, such as making fish feed pellets, tilapia feed, catfish feed pellets, shrimp feed, crab feed, turtle feed, fish feed pellets, etc. The finished pellet feed is extruded at heat via the heating plate in the dry type fish feed equipment.
For that reason, the finished granules can float on the water for about 1 day because of being puffed. Ended up bit sizes can be 0.9 mm, 1mm, 1.5 mm, 2mm, 2.5 mm, 3mm, 3.5 mm, 4mm, 4.5 mm, 5mm, 5.5 mm, 6mm etc approximately a larger 15mm. dry type equipment heating up the product by electric heating plate, this dry type machnine squeezes out the material from the holes of the die under the activity of the screw extruder.
When the pellets appear of the machine, the stress and temperature decrease greatly, and also the water evaporates. The material is after that broadened right into bits with a porous structure. During this process, moisture varieties from 15% to 20%.
Functioning Principle Of Dry Type Fish Feed Extruder
When extrusion operation, the product from the open end of the extrusion cavity input, by the screw transport to the entire extrusion dental caries, and then the supporting extrusion component right into a number of areas, in each area between the placement of a ring (pressure ring) as the flow and also stress control, the screw sharing activity to advertise the material circulation with the ring gap in between the pressure ring and the inside of the cavity, the power created by the rotational motion of the screw right into warmth The friction in between the material and the parts of the dry type fish feed extruder equipment as well as the internal friction of the material.
As the product is extruded with the die hole at the end of the puffing tooth cavity, the dough-like material is refined right into a certain form, and due to the big propulsion of the screw in the blowing dental caries of the dry type fish feed maker, a substantial stress is produced.
Creating in the product, when these products are extruded from the die opening, a huge amount of water in the material vaporizes immediately, which significantly reduces the wetness content of the product.
What Is Wet Type Fish Feed Extruder?
Wet type fish feed extruder maker is additionally widely made use of to generate raw materials into top-quality floating aquatic feed pellets, which is suitable for fish, catfish, shrimp, crab, cat, dog as well as other animals. The raw materials used by the wet type fish feed machine are wheat, soybean, cake as well as other scraps, etc, as well as the puffed fragments produced by the damp type fish feed extruder maker can float on the water surface area for more than 1 day without liquifying.
Wet type feed extruder equipment are mostly made use of in big and also medium-sized feed handling plants and also farms. it collaborates with the steam central heating boiler, the central heating boiler continually can supply hot steam to the wet type fish feed maker extrusion component.
The working principle of the wet type maker is similar to that of the dry type fish feed extruder maker. However the damp type needs adding water or vapor in the damp type fish feed machine to enhance the moisture to twenty percent, or more than thirty percent during handling. It raises the temperature of the material by steam.
Working Principle Of Wet Type Fish Feed Extruder
The wet type fish feed equipment consists of screw, barrel, layout, fixture, and so on. The screw as well as barrel are integrated in areas, and also the compression level can be adjusted according to the type and demands of the extruded feed, and also the development degree of the extruded feed can be transformed.
When the raw product goes into the filling up gadget, no extra home heating is needed as well as the screw is pressurized at high pressure and also heat to completely prepare as well as sterilize the raw product.
Throughout the heat curing procedure, the starch and fibers in the raw product broaden. The product is then molded into pellets with the molding die under pressure-sealed conditions.
Ultimately, the high pressure generated by the normal turning of the screw is cut by the routine high-speed rotation of the front cutter, as well as the finished product is shrunk right into an average little puffed sphere at room temperature and also pressure.
