Common problems with wood cutting machines:
1. Local blockage of the bottom sieve holes or pipe air inlet of the wood slicer, resulting in insufficient air intake.
2. The fan blades are worn or the impeller speed is too low.
3. The wood chips are too large, and the air buoyancy generated by the fan is not enough to overcome the weight of the wood chips. Large pieces of wood are prone to getting stuck at the bend of the air duct.
4. If the raw materials are too wet, the debris in the wood chips is prone to gradually adhere and accumulate on the inner wall of the air duct, especially at the bends. Especially in winter, the accumulated material freezes, causing blockage of the air duct.
5. The curvature radius of the bend in the wood chip conveying pipeline is too small.
Handling method:
1) Control the moisture content of the raw material to ensure it is between 30-50%. The soaked raw material should be dried with surface water before slicing.
2) Transforming the chip cutting process, short chips below 30 centimeters should not be used to prevent the production of large wooden chips that may jam the fan blades or duct bends.
3) The curvature radius of the air duct elbow should be greater than or equal to three times the diameter of the air duct, R>3D.
4) Pay attention to checking whether there are foreign objects blocking the bottom sieve holes and air inlet doors.
5) If the air intake is normal and the air supply pipe is not blocked, but the material cannot be fed, the fan impeller should be checked for wear and the fan speed should be checked for normal operation
6) In the production of wood chippers, when the clear and fluent rustling sound of wood chips hitting the pipe wall cannot be heard in the air supply pipe, or when fine pieces of wood are found to be escaping, it can be judged that the air duct is blocked and the outlet of the air duct, fan, and cyclone separator should be checked in a timely manner. Generally, air duct blockage occurs at bends, and sometimes the discharge port of the cyclone separator is blocked due to poor flow of the vibrating screen.
