The dust collector is mainly composed of brackets, ash hoppers, filter chambers, clean air chambers, filter bags, injection devices and controllers. The dust collector is a combination type, consisting of 1, 2, 3, and 4 unit specifications. Each unit has 24 rows. Each row has 12 filter bags. Each unit has 336 filter bags with a filter area of 800㎡. The filter bag has a length of 6 meters and a diameter of 130mm. The filter bag is made of polyester needle-punched felt.