The ventilation volume of the hollow blade dryer can be controlled at any time, and the temperature inside the dryer can be controlled at any time, and fuel can be added accordingly to achieve an energy-saving drying state. The ventilation part of the sludge 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 into the cylinder of the dryer. The key parts to manage the smooth flow of exhaust air are the flap valve and the flash valve. Only by operating these two parts well can we ensure smooth exhaust air and good ventilation.
For sludge dryers, we must learn to judge whether the ventilation situation is good or bad by ourselves. We use a simpler method, first we wet our hands, and then extend our hands to the discharge port. In this way, if the water on the hands evaporates after a while, it means that the ventilation is good, otherwise the ventilation is not good and needs to be adjusted.
We can adjust the ventilation volume of the sludge dryer in the following ways:
1. Pay attention to the air leakage between the flaps, especially the sealing of the bearing parts. It also prevents large pieces of slag, bricks, wires and other debris from falling into the flap valve, causing deep drafts, and even hindering discharge or blocking the flap, making it impossible to turn it over.
2. Observe the amount of material discharged by the flap valve and the size of the material discharge interval to see if it is suitable for the discharge speed of the sludge dryer. Do not store too much material in the tipping bucket, which will affect discharging, and do not store too little material in the bucket to cause excessive vibration.
3. Refuel the oil cup of the rotating shaft on time, twist it 1 to 2 times per shift, and rotate it once every time. For the flashing valve, observe whether the operation is flexible, whether the unloading is smooth, whether the balance weight is in the proper position, and whether the triangular cone is in tight contact with the unloading nozzle. According to the dust accumulation and loading conditions, the counterweight can be adjusted appropriately. The triangular cone is usually movably connected to the lever. In order to prevent the flash from being displaced due to vibration, it can also be fixed and welded to the lever after aligning it with the discharge nozzle.
