Dust removal bag series and dust removal skeleton play a decisive role in dust removal bag and bag filter. Without the support of the dust removal framework, the dust removal bag can't finish the whole process of dust removal, and the bag filter can't play its role. Therefore, it is very important to measure the dust removal framework in the early stage and install it in the later stage.

A, dust removal skeleton measurement matters

1. Measure the diameter of dust removal flower board, and the outer diameter should be smaller than the inner diameter of flower board and dust removal bag.

2. The distance between the ring beams of the dust removal framework is 200, which is basically fixed.

3. The total length of dust removal framework is less than 5cm of dust removal bag, or shorter as far as possible, not too long, otherwise the dust removal bag will be stressed on the dust removal framework.

4. The venturi tube of the dust removal frame is made of reasonable streamline and materials with the same thickness, and the streamline shape of the venturi tube determines the strength of the jet airflow and the thorough dust removal.

5. It is more appropriate to take the diameter of the dust removal skeleton after measurement as the machining size close to the manufacturer's standard size, which can save a lot of unnecessary mold making and consumption.

Second, the installation of dust removal skeleton matters needing attention

Before installation of dust removal framework, check whether the quality of dust removal cloth bag and dust removal framework is qualified. The cloth bag requires no off-line, jumper wire and wireless head. The size of cloth bag should be consistent with the diameter of framework. Also check whether the material of the cloth bag matches the one ordered.

If there is any difference, please contact the filter bag manufacturer for replacement as soon as possible. High-quality dust removal skeleton requires smooth appearance, no burr and no missing welding. The simple method is to observe my welding position, white gauze gloves in handbags and no hanging wires.

Good dust removal framework should have enough strength, stiffness, verticality and dimensional accuracy to prevent compression deformation, damage during transportation, mutual contact of filter bags after loading into dust remover, difficulty in bagging, friction between bag frames, etc. In the production process, all solder joints must be firm, and no desoldering, virtual soldering or missing soldering is allowed; It is required that the surface be smooth and straight, without burr and weld evenly. The surface treatment can be plastic spraying or silicone treatment. Galvanized or stainless steel materials can be selected for corrosion resistance required by temperature and humidity.

Third, the filtration mode of dust removal skeleton

Filter bag with dust removal skeleton: The dust removal bag is a cylindrical body surrounded by a single layer of fabric, which is usually round and is characterized by simple structure and easy dust removal. When the dusty air passes through the filter bag, the dust is separated from the airflow by screening, collision and interception.

The advantages of dust filter bag filtration are high filtration efficiency, over 99.5% total dust removal efficiency in the dust chamber of textile factory, simple structure and low power consumption. Disadvantages are prone to fire alarm, easy condensation of filter bags, small amount of filtered air per unit area, large amount of filter cloth, high dust concentration of filtered air and poor working conditions in a short time after dust removal.

The mechanism of dedusting skeleton filtration is the comprehensive action of short-range trapping mechanisms such as sieving effect, direct interception, diffusion settlement and inertial collision.

When air containing dust passes through filter materials such as mesh, fabric, nonwovens, foam plastics, etc., the dust layer formed by dust inside or on the surface of the filter material and the filter layer formed by the upper layer of dust are trapped to separate it from the airflow.

With the thickening of dust layer, it is necessary to clear the dust layer regularly to ensure the continuous dust removal process.