In a woodworking cyclone dust collector, air containing sawdust particles passes through the fan-conveying bag filter’s deflector chamber. The deflector plate slows the airflow, causing heavier wood dust particles to fall into the dust bin due to gravity. Lighter, finer dust particles are carried upward by the airflow and adsorbed on the outer surfaces of the filter bags. After being filtered by the bags, the clean air enters the exhaust plenum and is discharged outside. As the filtration process continues, increasing amounts of dust accumulate on the outer surfaces of the filter bags, increasing the system’s operating resistance and reducing dust removal efficiency. To address this, the system is equipped with an automatic pulse cleaning device, consisting of a pulse controller, pulse valve, speed coupling, steam drum, and air injection pipe. The pulse amplitude and frequency can be set on the pulse controller according to the characteristics of the wood dust particles. Once the pulse amplitude and frequency are set, the system automatically cleans the filter bags during operation, thereby increasing filtration efficiency and extending the filter bag’s service life.
After the woodworking cyclone dust collector adopts mature frequency conversion technology, the fan’s air volume “supply” and the actual “demand” of the air volume at the dust suction port are automatically adjusted through the frequency conversion technology to achieve “supply” and “demand” matching, thereby avoiding the “big horse pulling a small cart” phenomenon and saving electricity and operating costs. At the same time, our company recently launched an automatic switch air duct valve (automatic pipe valve) device that matches energy saving. Automatic pipe valves are installed on the corresponding exhaust pipe valves of each equipment. When the equipment stops operating, the valve will automatically close immediately, the equipment will stop exhausting air immediately, the fan will automatically slow down, and the power consumption will naturally decrease, thereby avoiding the phenomenon of leakage due to manual operation.
To meet increasingly stringent requirements for labor protection, environmental protection, and product processing precision, woodworking manufacturers are addressing the dust generated during production. The large amounts of fine dust and sawdust generated during woodworking production not only adhere to equipment and workpiece surfaces, impacting processing quality and causing scrapped workpieces and frequent equipment failures, but also polluting the work environment and potentially leading to silicosis. Therefore, workshops are ventilated to promptly remove generated dust and purify dust-laden air to keep equipment and workpiece surfaces clean.
Working principle of woodworking cyclone dust collector:
The dust-laden gas enters the filter chamber through the ash hopper or the spacious open flange at the bottom, and the coarser particles fall directly into the ash hopper or ash bin, and the dusty gas is filtered by the filter bag, and the dust is retained on the surface of the dust filter bag. The clean air goes to the clean air chamber through the bag opening and is discharged into the atmosphere by the fan. When the dust on the surface of the filter bag continues to increase, causing the equipment resistance to rise to the set value, the time relay or micro differential pressure controller outputs a signal, and the program controller starts to work, opening the pulse valves one by one, so that the compressed air is blown through the nozzle to clean the filter bag, causing the filter bag to expand suddenly. Under the action of the reverse airflow, the dust attached to the surface of the filter bag breaks away from the filter bag and falls into the ash hopper or ash bin, and the dust is discharged by the ash discharge valve. After all the filter bags are blown and cleaned, the dust collector resumes normal operation.
