The close relationship of filter bag and filter cage

As the filter cage has been in contact with the filter bag, so the impact on the baghouse is very important! Suitable filter cage will improve the filter bag on the using effect and cycle. The initial surface properties of the filter cage is crucial, and the smooth surface is the most basic requirement. Filter cage retention of surface properties, is an important basis for measuring the quality of filter cage. Burr and bump on the surface of the filter cage will directly lead to the abnormal failure of the filter cage. The smooth and flat surface of the filter cage will help reduce the friction between the filter cage and the filter bag.

First of all, there must be a reasonable choice. The choice is based on the gap between the filter cage and the filter bag. In order to extend the baghouse life cycle, the gap is as small as possible. This is because the reduction of the relative space between the filter cage and the filter bag can limit the contact space between the two and reduce the possibility of friction.

However, on the other hand, in order to ensure that the requirements of the cleaning effect are exactly the opposite, the larger the scope of the exercise, the more perfect cleaning effect may be. Therefore, in order to balance the needs of the two, the minimum clearance is often adopted while ensuring the cleaning effect. For example: the perimeter is 500 mm filter bag, if using pulse cleaning method, this cooperation is recommended between 1.5 to 2 mm.

Different work environments require different filter cage materials. At high temperatures, there is a corrosive gas that requires a higher grade of material. This is mainly to prevent the erosion of the filter cage, resulting in abnormal failure of the filter bag. For example: stainless steel may be the only choice in an environment of high acid gas. Common filter cage materials, in the case of acid and alkali, may be corroded. The effect of water on metallic materials is equally evident, as it makes the surface of the material rougher, thereby increasing its wear with the ter media afilnd reducing the filter media life cycle. For ordinary materials, water can rust it. The presence of rust, in addition to the possible oxidation of the baghouse, but also may rust baghouse, the baghouse and filter cage bonded together, thereby reducing baghouse cleaning effect. Therefore, the maintenance of the filter cage surface is the most important.

Secondly, the size of the filter cage processing assurance. The guarantee of filter cage size includes the filter cage verticality and straightness. It is not hard to imagine that a skewed filter cage will likely result in insufficient length of the filter bag, unusual contact between the filter bag and the filter cage. For a circular filter cage, the uniformity of the perimeter is also very important. Because the filter cage is made of its own weight to ensure its verticality, so the size of the guarantee and testing is not easy. In order to guarantee this, the cooperation between filter cage cap and flower plate should be controlled. The flat plank and filter cage end cap will help ensure the filter cage verticality and stability.

Finally, the guarantee of the distance between the bones of the filter cage is a concern for many users. In particular, the lower flexural strength of glass fiber materials will receive the direct impact of the parameter. A large number of applications show that the best distance is less than 25 mm. The size of filter cage material also important, the diameter of the wire, hopefully more than 4 mm.