The operating principle and capacity of the extruder

What is the composition of the extruder
The extruder mainly consists of an extrusion device, a transmission device, a feeding device, a motor, a discharging device and a machine base. The main device is the screw rod mechanism in the extrusion device: the taper hollow shaft, the screw blade. The drive device is a three-phase asynchronous motor, and the motor is connected with the screw shaft by a coupling. Principle: After the material to be processed is fed from the feeding port, it is squeezed by the screw blade, crushed, and conveyed forward with the screw, and sent out from the discharge port. The selection of the coupling takes into account the working environment and working conditions of the juicer, mainly due to the axial displacement of the rotating shaft. The movable coupler allows a certain installation error between the two axes, and it has a certain ability to compensate for the offset between the two axes.

The coupling consists of two half couplings and a cross slide. The mutually perpendicular protrusions on both sides of the cross slide and the grooves of the two 12 couplings respectively form a moving pair. When the coupling of the double cone mixer is working, the cross slide rotates with the two shafts, and at the same time moves relative to the two shafts to compensate for the radial displacement of the two shafts. This coupling allows a large amount of radial offset. Small angular displacement and axial displacement are allowed. Since the eccentric rotation of the cross block will generate centrifugal force, it is not used in high-speed applications. In order to reduce the wear of the cross block during relative movement and improve the transmission efficiency, regular lubrication is required. Selection of the design material of the screw shaft The screw rod is the main working part of the screw juicer, which is made of stainless steel after casting and finishing.
What is the production capacity of the extruder?
The production capacity of the extruder refers to the amount of sugarcane that can be processed by the machine in a unit time. It is usually expressed in tons of sugarcane processed per hour. In America, it is used to be expressed in tons of sugarcane squeezed per day. The relationship between these two values is not as straightforward as one might think. In practice, the number of extruded tons per hour is assuming trouble-free operation of the extruder during the period under consideration, and under normal circumstances, this figure is readily available as the number of hours the extruder operates after the end of the pressing season To divide the total extruded cane tons, downtime and breakdown time are deducted.

On the other hand, the daily tonnage is calculated by dividing the tonnage of sugarcane squeezed by the number of working days during the crushing season, and a small amount of downtime is not deducted. It is common to have no failures within an hour of extrusion, and many production daily reports indicate that in a single season, there will be multiple 10 to 20 minute downtimes for 24 hours of continuous extrusion. It can be seen that even if the number of operating days in a week is carefully recorded, the daily extrusion tons will not be equal to 24 times the hourly extrusion tons.