Key Points for Installing Bag Filters in Single Machine Dust Collectors:

The primary filtration method of the bag dust collector is to isolate dust using filter bags. If the filter bags are not properly selected or installed during assembly, it greatly affects the dust removal efficiency of the single-machine dust collector. Therefore, the installation precautions for the filter bags of the single-machine dust collector are a matter that deserves our serious attention.

Single-machine dust collector filter element installation precautions:

The dust collector filter cartridge is a star-shaped filter tube made by folding a certain length of crisp filter material into pleats and then bonding the ends together. The filter cartridge is without a cage, making it easy to install. There are various types of filter cartridges, ranging from thin and long to thick and short.

Tall and slender filter sleeves (e.g., φ≤160, L=1-2m) feature large gaps between pleats (e.g., 45 pleats) and wide angles, with fewer and shallower pleats. Their filtering area is 2-5 times larger than that of similarly sized and length filter bags, making dust cleaning easier and more effective. They are suitable for dust removal with dust concentrations of ≥15g/m³ and a filtration air velocity of 0.6-1.2m/min.

The coarse, short filter elements (e.g., φ350, L=0.66m) feature a large diameter, short length, and numerous folds (120-350 folds) that are deep and have small inter-folding gaps. They offer a large filtering area, up to 14-35 times larger than that of similarly sized and lengthened filter bags, making them suitable for installation in areas with limited space. However, due to their small fold angles, dust accumulation is common and cleaning is difficult, making them appropriate for dust filtration at concentrations of ≤5g/m³, with a recommended filter velocity not exceeding 0.6m/min.

There are three installation methods for the pulse jet bag filter: vertical, inclined, and horizontal.

Vertical installation of the filter element allows for easy dust settling and collection into the ash hopper during pulse cleaning, resulting in excellent performance. In inclined installation, the filter elements stack one on top of the other, creating a compact structure with minimal floor space and ease of element replacement. However, during cleaning, the dust from the upper filter element settles onto the lower one, making it difficult to remove.

Horizontal installation makes it more difficult to remove dust from the upper part of the lower filter sleeve.

The inclined installation bag dust collector is suitable for dust removal in non-adhesive, low-concentration, coarse particle dust systems for small and medium-sized dust removal applications. It is also appropriate for the retrofitting of some older bag dust collectors.