What is the working principle of electromagnetic vibration of electrostatic precipitator?

Working principle of electromagnetic hammer rapper: When the coil is electrified, a magnetic field will be generated around the coil, and the rapping rod will be lifted under the action of magnetic field force. When the coil is powered off and the magnetic field disappears to a certain height, the rapping rod will fall freely under the action of gravity and hit the rapping rod, and the rapping force will be transferred to the internal cathode and anode system or gas distribution device through the rapping rod, thus realizing the purpose of rapping cleaning.

1. The relative position between the vibrator and the electromagnetic vibrator at the top will not be affected by the relationship between thermal expansion and cold contraction of the system, so the stress effect of the vibrator will not change. However, the lower parts of the cathode and anode system can be freely contracted, so it has a wider range of adaptability to flue gas temperature.

2. The cleaning performance of top vibration is closely related to the structure of anode and cathode system. In structural design, we should pay full attention to the configuration of vibrator, the position of focus and the transmission of force. As long as the structural design is reasonable, the top vibration cleaning can fully meet the requirements of various working conditions. It is not only suitable for short-board small and medium-sized electrostatic precipitators, but also suitable for long-board large electrostatic precipitators.

3. At present, the maximum rapping energy generated by the electromagnetic hammer rapper is 27. 12 Joule. The factory experiment showed that a rapper rapped three rows of BE-type electrode plates with a height of 15m. When different rapping forces are used, the distribution of rapping acceleration is measured on the first electrode plate (the electrode plate with the smallest rapping acceleration) in the middle electrode plate row and the edge electrode plate row. When the rapping force is 18.8 Joule, the rapping acceleration obtained at the lower end of the dust collecting plate is >: 100g. Experiments and practice show that the top electromagnetic vibrator can meet the requirement of rapping acceleration (≥50g) required for cathode dust removal, and it is an ideal rapping dust removal method for electrostatic precipitator.

The electromagnetic hammer vibrator consists of an electromagnetic coil wound on a high-strength bobbin which is assembled in a steel protective cover for safe outdoor use. It removes the dust deposited on the electrode plate and electrode line of electrostatic precipitator by mechanical vibration.

Electrical technical features:

Maximum current (instantaneous) 30 amps

The working voltage is 220 volts DC.

The typical electric pulse time is 50 milliseconds.

The maximum impact energy is 26.5J J.

The vibrator weighs 9 kilograms.