Ensure the ventilation of the sand dryer, master the temperature in the dryer at any time, and add fuel according to this in order to achieve energy-saving drying. The ventilation place of the sand dryer is mainly between the drying cylinder of the dryer and the hot blast stove. It can use natural wind or artificial wind, and then blow the air volume to the cylinder of the dryer. The key parts for managing the best-selling exhaust are the flap valve and flashing valve. Only by operating these two parts well can we ensure smooth exhaust and good ventilation. First of all, we should learn to judge the ventilation condition by ourselves. We use a simpler way. First, we wet our hands, and then extend our hands to the discharge port. In this way, if the water on our hands evaporates after a while, it means that the ventilation is good, otherwise the ventilation is not good and needs to be adjusted. Of course, this is only a simpler and more effective judgment method.

We can adjust the ventilation volume in the following ways:

1. Pay attention to the air leakage between the flaps, especially the sealing of the bearing parts. And prevent large slag blocks, bricks, iron wires and other sundries from falling into the flap valve Cause deep wind, even hinder discharge or block the turnover plate, and cannot be overturned.

2. Observe the blanking ratio of the flap valve and the blanking interval, and whether it is compatible with the discharge speed of the sludge dryer. Do not store too much material in the tipping bucket to affect the discharge Don't store too little material and vibrate too much.

3. Fill the oil cup of the rotating shaft on time Turn the silver button once for each shift, 1 ~ 2 times. For the flashing valve, observe whether the operation is flexible, whether the blanking is smooth, whether the position of the balance weight is appropriate, and whether the triangular cone is in tight contact with the blanking pipe orifice. According to the ash deposition and blanking, the balance weight can be adjusted appropriately. Triangular cones are usually movably connected to levers. In order to avoid flicker and displacement due to vibration, it can also be fixed and welded on the lever after aligning the blanking pipe orifice.