Fish Feed Machine Knowleagde

When new or old aquaculture feed processing plant want to build the new feed production line, how to choose the feed extruder, need to focus on some items, such as investment price, service life and win. For example, mainly consider the type and specification, and determine the matching equipment according to the production capacity; especially when the old factory is retrofitted, Whether the production capacity of the original feed mill, dryer, and cooler can support the normal operation of the new machine.

List the notice items:
1. puffing effect
For aquafeed processing, good puffing effect directly affects the pellet forming rate of more than 99%. It is generally considered that the requirements for qualified puffed feed are: particle pulverization rate is less than 1%, and particle floating rate (sinking rate) is as high as 100%. The formed particles are uniform in size, uniform in color and have good water resistance; the floating feed is kept in water for 10 hours, and the sinking type is kept in water for 3 hours without collapse.

2. Investment price
The investment price of the twin-screw extruder is 1.5 to 1.7 times that of the single-screw extrusion equipment of the same production capacity; the wearing parts and power consumption are about 1.5 times that of the latter.

3. the service life
The equipment of different manufacturers has different service life due to different structural characteristics and materials used. Therefore, when selecting equipment, special attention should be paid to whether the structural design is reasonable. The key point is the wear resistance of the wearing parts and whether it can really reduce the screw wear. In addition, it is necessary to consider whether it can achieve the true energy saving. Those raw materials that have not been subjected to ultrafine pulverization are more serious to wear parts of the twin-screw extruder. In this case, it is better to use a single-screw extruder.

4. control method
The number of processes for aquafeed extrusion is manual or semi-automatic, artificially controlling steam, feed rate and water addition rate, and product temperature, which affects the quality of the pellet product. The large-scale large-scale feed mill in modern scale adopts fully automatic controlled feed processing unit. The computer controls the flow of materials, water and steam, and adds it according to the set proportion. It alarms the faults occurring during the processing, effectively eliminating the influence of human factors. Unavoidable fluctuations in feed quality.