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What should I pay attention to when using a two-speed mixer? Why does it vibrate strongly?
Release time：
2025-04-14
With a constant gas flow rate in a two-speed mixer, the gas dispersion effect in the liquid phase is good, and the mass transfer rate is high. The power socket of the two-speed mixer should be a three-hole safety socket and must be properly grounded. The two-speed mixer should be kept clean and dry. It is strictly forbidden for solutions to flow into the machine to avoid damaging the machine. The power should be cut off when not in use.
With a constant gas flow rate in a dual-speed stirrer, the gas disperses well in the liquid phase, resulting in a high mass transfer rate. The power socket for the dual-speed stirrer should be a three-prong safety socket and must be properly grounded. The dual-speed stirrer should be kept clean and dry. Strictly prohibit any solution from flowing into the machine to avoid damage. The power should be turned off when not in use.
What should manufacturers pay attention to when using a dual-speed stirrer? When purchasing, you can choose to buy from some well-known dual-speed stirrer manufacturers. If the dual-speed stirrer is found to be vibrating or not stirring during the stirring process, please cut off the power and check if the bottom of the beaker is flat and the position is correct. At the same time, please measure the current voltage. It should be between 220V ± 10V; otherwise, the above situation may occur. Generally, the heating time should not be too long. Intermittent use can extend the service life. Do not heat without stirring. The medium speed can operate continuously for 8 hours, and the high speed can operate continuously for 4 hours. Prevent violent vibrations during operation.
A magnetic dual-speed stirrer utilizes the characteristic that magnetic substances repel each other when their poles are the same. By continuously changing the polarity at both ends of the base, it drives the magnetic dual-speed stirrer to rotate, and the rotation of the magnetic dual-speed stirrer drives the sample to rotate, making the sample mix evenly!
Why is the dual-speed stirrer vibrating strongly?
When the dual-speed stirrer moves within the inner circle, it releases the stress generated by thermal deformation during operation. The fastening part of the stirrer shaft is changed to a round nut with a dedicated round nut retaining ring. The assembly method is changed at the position where the dual-speed stirrer blade and shear blade are pushed to increase the contact area between the dual-speed stirrer shaft and the dual-speed stirrer shaft. For high-speed rotation of a slender shaft, the rigidity must be good, so the material has been re-selected.
The recommended working clearance of the angular contact ball bearing of the dual-speed stirrer is zero or slightly negative; therefore, the inner and outer steel sleeve dimensions and pre-tightening force have a great influence on the working state and service life of the angular contact ball bearing. To achieve the appropriate working clearance of the angular contact ball bearing, the pre-tightening force of the stirring equipment must first be calculated. Generally, a smaller preload should be selected at high speed, and a larger preload should be selected at low speed. At the same time, the pre-tightening force should be slightly greater than or equal to the axial working load.
It is strictly forbidden to run idle before the blades are completely immersed in the liquid to avoid danger and equipment damage. Before starting the stirring equipment, ensure that the base bolts and screws are completely fixed. For high-speed or large-capacity stirring operations, a positioning device should be installed at the bottom or middle of the shaft to reduce the probability of failure caused by shaft shaking.
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