At present, with the continuous development of the aquaculture industry, the use of aquatic floating fish feed extruder machines is becoming more and more extensive, and there are more and more projects for installing and using aquatic floating fish feed extruders.
Among these many manufacturers using aquatic floating fish feed extruder machines, due to the use of manufacturers Different production managers or engineering installation designers have different understandings of the production characteristics of aquatic fish feed pellet extruders.
The installation methods of the floating fish feed making machines and their supporting facilities are also different, and the selection of installation methods for each part of the floating feed extruder machine and its supporting facilities will directly affect the stability of the floating fish feed extruder machine’s working performance and the humanization of the floating fish feed extruder’s operation.
The aquatic floating fish feed extruder machine described in this article refers to a typical fully automatic control feed extruder, which includes a broken arch feeding bin, a feeder, a dual-shaft differential conditioner, an feed pellet extruder, a pipeline rack, and an electronic control system.
In this paper, some suggestions are given for your reference from the perspective of the selection of the installation method of each part of this type of floating fish feed extruder machine and its supporting facilities.
A basic reference data in the floating fish feed extruder machine control system is the flow rate of the material. The amount of water, steam and other liquids added in the system is based on the flow rate of the material, so the stability of the material flow directly affects the stability of the entire floating fish feed extruder machine production.
In order to ensure the stability of the logistics, the system adopts differential weight feeding, that is, the entire feeding bin and the feeder are placed on the load cell, and a closed-loop control is formed between the load cell, the frequency conversion feeder and the computer. feeding.
The basic requirement of differential weight feeding is the soft connection of the upper and lower interfaces, that is, the soft connection between the broken arch feeding bin and the pneumatic gate on the upper part of the bin body, and the soft connection between the feeder outlet and the conditioner inlet. The soft connection of these two places generally uses canvas as the material to connect.
The installation of load cells is another important factor affecting feeding. There are generally two types of sensor installation: hoisting and supporting, both of which can be used according to the needs of the site.
When using hoisting, some measures should be taken to ensure the stability of the silo body. During the production process of the floating fish feed extruder machine, when the material is fed into the feeding bin, the falling of the material causes the entire bin body to shake.
Related solution:Fish Feed Production Plant
The amplitude of the shaking and the length of the shaking time are closely related to the length of the sensor rod. The feeding data of time follows the data before feeding, but after the material enters the silo, if the silo body keeps shaking, it will directly affect the weighing accuracy of the sensor, so it is required to add a limit device at the lower part of the silo body and meet the limit bit device does not affect weighing.
Another floating fish feed extruder machine installation method is bracket installation. This installation method will not cause shaking, but the entire silo body is easy to move.
This requires that the sensor needs to be fixed on the bracket during floating fish feed extruder machine installation, and the sensor should be installed on both sides of each lifting ear of the feeding silo. Install the limit block to prevent the movement of the entire warehouse body.
During the installation of the broken arch feeding bin, it is necessary to pay attention to the position of the inspection door for floating fish feed extruder machine. To ensure that the inspection door can be opened, an inspection platform needs to be installed at the lower part of the inspection door.
Since the support frame of the dual-shaft differential conditioner is a welded body, there will be a certain deformation during the transportation of the floating fish feed extruder machine.
When the bracket is deformed and installed directly without adjustment, the main shaft of the conditioner and the output shaft of the gearbox will be damaged.
Different shafts, the noise generated by the roller chain coupling when the floating fish feed extruder machine is running will cause the coupling gear and chain to wear, so the support frame must be adjusted during installation so that the conditioner main shaft and the gearbox output shaft are coaxial.
The relative position of the two main shafts is also required when the floating fish feed extruder machine conditioner is installed. During floating fish pellet machine installation, it can be installed according to the mark on the shaft end, or you can choose the relative position for installation. For details, please refer to the manual.
The main machine of the floating fish feed extruder machine is the heaviest equipment in the whole system, and due to the factor of the main motor, it has high requirements on the bearing capacity of the foundation.
During installation, the floating feed extruder machine cannot be placed directly on the foundation. Channel steel (the type of channel steel is determined according to the level of the floating fish feed extruder machine) should be used to make a frame pad under the equipment base according to the size of the extrusion machine base, and fix it with the foundation with expansion screws.
When making the base frame, the flatness of the entire frame must be ensured, and special attention should be paid to the same plane of the main frame and the motor base. This is especially important for the extrusion model that uses an elastic coupling directly connected to the reducer.
For an floating fish feed extruder machine driven by an elastic coupling directly connected to a reduction box, the coaxiality between the output shaft of the main motor and the input shaft of the reduction box must be ensured during installation.
For the floating fish feed extruder machine driven by the pulley, the driving pulley and the driven pulley must be on the same plane during installation. At the same time, there are also requirements for the tightness of the V-belt. If it is too loose, it is easy to slip.
The service life of the V-belt is to adjust the tension bolt on the motor base to make the tension of the V-belt in an appropriate state, that is, apply a force of 27kg to the midpoint of the straight edge of the belt, and make its deflection offset as 21mm is appropriate.
Aquatic feed has two production methods: pellet feed and extruded feed. Due to the good absorption rate of extruded aquatic feed and high fish yield, the aquatic market is rapidly transitioning from pellet feed to aquatic extruded feed.
The extruded fish feed is an extruded porous feed obtained after the high temperature and high pressure of the floating fish feed extruder machine and the sudden depressurization.
Both extruded feed and pelleted feed can be used as feed for fish. The extruded feed is better because of its good palatability and high digestibility. The extruded feed is produced by the process of conditioning, puffing and liquid spraying:
In the process of feed conditioning, the production process of extruded feed is to add water and steam together to fully contact the material. After conditioning, the degree of protein maturity is increased by 30%, and the moisture content is about 25%. The reason why the extruded material can improve its digestive utilization.
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