What vibrating screen is effective for materials prone to static electricity?
When the screened materials generate static electricity due to mutual friction and cause screening problems such as blockage, troupe, agglomeration, etc., how can users solve it? The following editor will explain how the vibrating screen solves the screening of static materials.
1. Install a ground wire at the screen frame
For materials with weak static electricity phenomenon, a grounding wire is drawn at the frame of the ultrasonic vibrating screen can effectively solve the static electricity problem. Specific requirements: The screen frame of the ultrasonic vibrating screen should be in close contact with the grid frame, which is conducive to the conduction of static electricity. When connecting the ground wire, it can be directly spot welded to the screen frame and then introduced underneath. If the screen frame is not in close contact with the grid frame, it is necessary to directly install the grounding wire on the grid frame and then lead it into the lower part. However, if it is directly connected to the screen frame, it will cause friction on the cable and break when the equipment is running. Therefore, when using this method, the operator needs to check the grounding wire regularly to prevent damage.
2. Use antistatic equipment
The equipment is composed of a high-voltage power generator and a discharge electrode. The air is ionized into a large number of positive and negative ions through high-voltage corona discharge, and then a large number of positive and negative ions are blown to the surface of the object to neutralize the static electricity, or the electrostatic device is directly close to the object The surface and neutralize static electricity. When this method of removing static electricity is applied to the ultrasonic vibrating screen, the equipment needs to be of open design. Therefore, if this type of equipment is used for production, the specific gravity of the material must not be too light and there must be no dust emission.
3. Use an ultrasonic device
The ultrasonic device is composed of an ultrasonic power supply and an ultrasonic transducer. The electric current is converted into high-frequency and low-amplitude ultrasonic vibration waves through the ultrasonic power supply, and then the transducer is transmitted to the screen surface. Because the screen surface has a strong ultrasonic vibration wave, it can effectively solve the troupe and adsorption problems caused by static electricity. The above is the solution to the problem of static electricity in the material during production of the ultrasonic vibrating screen.