Dispersion requirements of high speed disperser

When the high speed disperser is used for pigment dispersion, the grinding paint slurry in the dispersion tank is required to be laminar flow, and the viscosity of the grinding paint slurry is very high. Theoretically, the formation of this high viscosity paint paste can take either high viscosity paint or high pigment content, or both. However, the actual production experience tells us that the combination of medium viscosity paint with low solid content and high pigment content is ideal because at this time, the efficiency is higher and the energy consumption is lower, which meets the economic requirements.

Experiments show that the solid content of the resin in the coating should not be less than 15%. In addition, to ensure the color mixing and paint-making stage the stability of the grinding paint slurry, the solid content of the resin in the grinding paint slurry, and the solid content of the resin used for paint mixing should not be too far away, so it is recommended that the solid content of the paint be within the range of 20% - 35%.

Operation and maintenance of high speed disperser

Preparation before start-up of high speed disperser

1. Check whether the oil level is filled to the specified position. The low oil level should be increased to the specified oil level, and the high oil level should be placed at the specified position.

2. Check the V-belt for proper tightness.

3. Turning the impeller by hand should rotate flexibly without friction sound.

4. Check whether the fasteners are loose and whether the sealing parts have leakage.

5. Turn on the main motor and check whether the rotation direction of mixing is the same as that specified by the equipment.

6. Start the vehicle after confirming that the above inspection work is correct.

Drive a car

1. Place the impeller in the center of the container, lift the lowering button and lower it to the lowest position or the required position.

2. The two handles must be locked before driving.

3. Turn on the main motor and press the button according to the speed required by the operation.

4. Pay attention to the current frequently during operation. If the overloaded operation is found, stop the machine to check the cause and take measures before continuing the operation.

Parking

1. Stop the main motor first to stop all the impellers.

2. Turn on the rising button to raise the main shaft impeller above the container and clean the impeller.

What should we pay attention to in the production of high speed dispersers?

1. First of all, we should understand that when the highspeed disperser is idling, the speed should not exceed 800r/min, which will lead to deformation of the rotating shaft, or very large vibration, which may lead to fracture, etc.

2. When mixing or dispersing, it is forbidden for any other object to contact the shaft and keep the surrounding of the shaft clean and tidy. If other solid blocks fall into the barrel, it is necessary to shut them down and take them out before the next step.

3. When the materials in the barrel are finished and fed, be sure not to enter other objects, such as some packaging bags or metal substances, which will be wound on the machine, which is not conducive to work, and the metal may cause machine damage, etc.

4. Also, operators should pay attention to avoiding letting long hair people touch the machine and other things.

5. During production, it should be noted that there should be someone besides the chassis of the machine to take care of it. To prevent other emergencies, it can be effectively and timely solved.

6. Someone should be on duty at all times at the work, and not leave the post without authorization. If the operator leaves the post, someone should be found to guard it.

Common faults and troubleshooting of high speed disperser

1. Electromagnetic speed regulation drives the motor to rotate but cannot speed regulation?

The motor of the electromagnetic speed regulating disperser relies on the speed regulating instrument to form a magnetic field for the excitation coil current to regulate the speed. This situation may be caused by instrument failure, excitation coil short circuit, and line falling off.

2. Turn on the dispersion shaft of the host and it will run at high speed. Can't you adjust the speed?

The reason for this is that there is slag in the steel plates of the drive motor and excitation motor. Shut down and check the motor.

3. When the speed is adjusted to the maximum speed, the jitter is large and accompanied by abnormal noise?

When you adjust the speed to the fastest speed, there is a large shake and abnormal noise. This problem proves that the bearings of the disperser are burned out. Replacing the bearings can solve the problem.

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