The invention discloses an ash blowing explosion tank with rotatable partition plates. The ash blowing explosion tank comprises a tank body, an air inlet, an air outlet and an ignition device, and ischaracterized by further comprising a shaft, a sleeve
pipe, the first partition plate, the second partition plate, an arc plate, a first boss and a second boss. In the
natural state, due to the actionof gravity, the arc plate welded to the
tail end of the first partition plate is attached to the first boss, the second partition plate is attached to the second boss, the air outlet is closed, a sealed cavity is formed, the fullness and pressure of
mixed gas in the cavity are increased advantageously, and the situation that furnace
hearth smoke enters the explosion tank and
corrosion is caused can be prevented. When the explosion tank is ignited for explosion, the partition plates and the arc plate are impacted and can rotate
clockwise, thus, the air outlet is opened, the first partition plate is impacted and collides with the second boss after rotating
clockwise by 90 degrees, ash deposits on the inner wall face of the explosion tank is loosened favorably through sound
waves and vibration which are caused by collision, the air inlet is blocked by the second partition plate during explosion, and the air inlet is kept communicating with the tank
body cavity all the time.