The utility model discloses a
coal bunker dredging
electric control device, which relates to the technical field of
coal bunker dredging, and comprises an air inlet
ball valve, an air inlet connecting piece, an air
storage tank, a base and a motor, the air
storage tank and the motor are respectively and fixedly arranged on the base, a sounder is communicated between the motor and the air
storage tank, the sounder is communicated with a taper
pipe, and the taper
pipe is communicated with the air inlet
ball valve. A Helmholtz
resonant cavity is formed in the end, away from the sounder, of the taper
pipe and communicates with the
coal bunker. The sound generator is driven by the motor to generate sound
waves with specific frequency, the sound
waves act on blockages in the coal bunker through the taper pipe and the Helmholtz
resonant cavity, the blockages are loosened and fall off by utilizing the vibration energy of the sound
waves, and compared with a mechanical dredging means, the large-area arching problem can be solved, and the dredging effect is more remarkable.