At present, with the continuous development of the aquaculture industry, the use of aquaculture extruders is becoming more and more extensive, and there are more and more projects for installing and using aquaculture extruders, and among the many manufacturers using aquaculture extruders, due to the use of manufacturers. The production management personnel or engineering installation designers have different understandings of the production characteristics of the aquaculture extruder. The installation method and supporting facilities of the extruders are not the same, and the installation methods and matching of the various parts of the whole extruder The completeness of the facility will directly affect the stability of the working performance of the extruder and the humanization of the operation of the extruder.
The aquaculture extruder described in this paper refers to a typical fully automatic controlled extruder, which includes a broken arch feed bin, a feeder, a dual-axis differential conditioner, an extruder, a pipe rack and an electronic control system. . This article gives some opinions from the perspective of the selection of the installation methods of various parts of this type of extruder and its supporting facilities for your reference.
1. A basic reference data for the installation control system of the broken arch feed bin and feeder is the flow of material. The water, steam and other liquid additions in the system are based on the flow rate of the material, so the flow rate of the material Stability directly affects the stability of the entire extruder production. In order to ensure the stability of the logistics, the system adopts differential feeding, that is, the whole feeding bin and feeder are placed on the load cell, and a closed loop control is realized between the weighing sensor, the variable frequency feeder and the computer. Feeding.
The basic requirement for differential feeding is the soft connection between the upper and lower interfaces, that is, the soft connection between the broken arch feeding bin and the pneumatic gate at the upper part of the cartridge body and between the feeder discharge port and the conditioner inlet. Soft connection, the soft connection between the two places is generally connected by canvas as material.
The installation of the load cell is another important factor affecting the feeding. Sensor installations are generally available in two forms: hoisting and mounting, both of which can be used depending on the site requirements. Some measures should be taken when hoisting to ensure the stability of the warehouse. During the production process of the extruder, when feeding into the feeding bin, the falling of the material causes the whole body to shake, and the amplitude of the shaking and the length of the shaking time are closely related to the length of the sensor rod, although the control program puts the material into the warehouse. The feed data of the time follows the data before the feed, but after the material enters the warehouse, if the silo body keeps shaking, it will directly affect the accuracy of the sensor weighing. It is required to add a limit device at the lower part of the silo body and meet the limit. The bit device does not affect the weighing. Another type of installation is the mounting. The installation method does not cause sloshing, but the entire storage body is easy to move. This requires the sensor to be fixed on the bracket during installation and on both sides of each lifting lure of the feeding bin. Install the limit block to prevent the entire block from moving.
In the installation of the broken arch feeding bin, it is necessary to pay attention to the position of the access door to ensure that the access door can be opened and the inspection platform needs to be installed in the lower part of the access door.
2. Installation of double-axis differential speed regulator Because the support frame of the double-axis differential speed regulator is a group weldment body, there will be some deformation during the transportation of the equipment. When the bracket is deformed, it will be installed without adjustment. It will cause the shaft of the conditioner to be different from the output shaft of the gearbox. The noise generated by the roller chain coupling during the operation of the equipment will cause the gears and chains of the coupling to wear. Therefore, the bracket must be adjusted during installation to adjust the quality. The spindle is coaxial with the output shaft of the gearbox.
The relative position of the two spindles is also required when the conditioner is installed. It can be installed according to the mark of the shaft end during installation, or it can be installed at the relative position. For details, please refer to the instruction manual.

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3. Installation of the extruder The extruder main unit is the heaviest equipment in the whole system, and due to the main motor factor, there is a high requirement for the bearing capacity of the foundation. The extruder can not be placed directly on the foundation during installation. The channel steel is required (the channel model is determined according to the extruder level). The frame cushion is made under the equipment base according to the size of the extruder base, and the anchor is fixed to the foundation with expansion screws. . When making the base frame, the flatness of the entire frame must be ensured. Pay special attention to the same side of the main frame and the motor base. This is especially important for the extrusion type in which the transmission is driven by a flexible coupling directly connected to the reduction gearbox.
For extruders that use a flexible coupling direct-connected gearbox drive, the coaxiality between the main motor output shaft and the gearbox input shaft must be ensured during installation. For the extruder of the pulley transmission mode, it is necessary to ensure that the driving wheel and the driven wheel are in the same plane during installation, and the elastic band of the V-belt is also required. If it is too loose, it is easy to slip. If it is too tight, the tension on the shaft is too large, and the tension is reduced. The service life of the V-belt is adjusted by adjusting the tension bolts on the motor base, so that the tension of the V-belt is in an appropriate state, that is, the force of 27 kg is applied to the midpoint of the straight side of the belt, and the deflection offset is It is appropriate when 21mm.
4. Installation of the pipe rack The installation position of the pipe rack depends on the location of the site, but it cannot be too far from the host. The distance from the host will cause waste of materials when the pipe is connected. On the other hand, it will cause the control system. Hysteresis. In the case where the on-site installation position allows, the optimal position of the pipe rack is just behind the main engine and the conditioner, parallel to the host, about 1 meter away from the host (with a certain maintenance space), and at the same time ensure the pipe rack up. The mass vessel steam line interface is located on the side of the conditioner.
In order to facilitate the cleaning of the ground and the outflow of wastewater in the future, the pipe rack should be installed about 10 cm high. In the installation of each valve of the pipeline, the position of the valve wheel should meet the needs of convenient operation.
5. Installation of the control box In order to facilitate the operation, the installation position of the on-site control box should be selected near the bypass. A certain space should be left between the bypass and the control box to temporarily place the waste flowing out from the bypass. The distance between the inverter of the cutting motor and the rotary cutter of the on-site cutter should not be too far. It is the use of voltage control. If the distance is too far, voltage fluctuation will occur, which will affect the cutting effect.
The circulating temperature display on the field control box displays the temperature of the puffing chamber at each end in real time. The temperature sequence displayed by the instrument has certain requirements. The temperature from “0” to “4” in the meter corresponds to the feeding puffing chamber. Section 2 puffing chamber ... until the discharge puffing chamber, this need to pay attention to the order in the electronic control wiring.
In addition, there are 4 nozzles on the inlet pipe of the double-shaft differential speed regulator, which control the opening of each nozzle through the electromagnetic cut-off valve, and the water inlet nozzle switch 1 to switch 4 on the control box respectively correspond to the regulator The first nozzle to the fourth nozzle from the feed end.

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6. After the puffed material is cut, the process requires that the puffed material is cut into the dryer. There are generally two ways. One is that the dryer is located directly below the discharge port of the puffing machine cutting device, at the discharge port and the dryer. A bypass is placed on the floor between the two; the other is a flat conveyor under the cutting device.
The purpose of using the bypass is to take out the unqualified waste from the beginning of the start-up and before the stop, and use the bypass to drive into the dryer when the product is qualified. There are two points to be noticed when using bypass: First, the bypass needs to be easy to move, because the bypass can be easily removed during the process of disassembling the discharge template, and the bypass is required when cleaning the expansion chamber with water. On the feed port cover, the feed port needs to protrude from the floor to ensure that water flowing on the ground cannot enter the feed port.
The use of a flatbed conveyor is also a common method. After the puffed and cut pellets are transported horizontally for a few seconds and then enter the dryer, the deformation of the dryer into the dryer will be smaller than the drop of about 3 meters. For the same reason, the conveyor should be equipped with four universal casters for easy movement. The ideal baffle on both sides of the conveyor should not be too low, otherwise the material will rebound to the ground; the height of the conveyor can be adjusted and fixed at one time, otherwise the gap between the cutting device and the cutting device will be too large, and particles will run out of it, resulting in waste; The conveyor belt can be operated in both forward and reverse directions, which is equivalent to the function of bypassing, and realizes the separation of finished products and waste products.
One of the characteristics of the aquatic product extruder is that it needs to be soaked with water, cleaned and expanded the inner cavity, and even washed with water. This has the problem of wastewater. This requires the extruder and the pipe rack to be enclosed, and the ground forms a certain slope. There is a water ripple at the edge of the slope. Of course, if the site conditions are limited, it is also possible to use a large-diameter cylinder to pick up the wastewater at the outlet of the expansion chamber when cleaning the expansion chamber.
In addition, a sink should be set up at the work site. The purpose is to wash hands by the staff, and the second is to soak the flushing template.