Introduction: Concrete vibrating machines, also known as concrete vibrators, function to vibrate the concrete into concrete by removing the internal pores and removing the cellular pockmark due to its own gravity. The concrete vibrating machine, also called the concrete vibrator, acts by vibrating to make the concrete that has been stirred into due to its own gravity to remove the internal pores, remove the honeycomb pockmark, and make the concrete compact.
In order to realize the real-time monitoring of the coal mine ventilator, the finite state machine theory is used to analyze the state and control the working process of the ventilator control system. According to the operating conditions of theventilator, the control circuit is divided into different working states. These working states are combined into a specific limited state machine to realize the control and state transfer of the VFD, Thus, the reliability of ventilator control system can be improved.
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Concrete vibrator types:
1. According to the method of transmitting vibration, there are internal vibrators, external vibrators and surface vibrators;
2. According to the power source of the vibrator, there are three types: electric type, internal combustion type, and pneumatic type. The most widely used electric type.
3, according to the vibration frequency of the vibrator, there are three types of low frequency, medium frequency and high frequency;
4, according to the principle of vibration generated by the vibrator, there are two types of eccentric and planetary.