Baghouse dust collector filtration speed - flow rate

The pulse bag filter is also known as the pulse bag filter. It is a mature dust removal device and is suitable for collecting fine, dry and non-fibrous dust. The bag filter has a wide application range and the dust removal efficiency is over 99%. It can be matched with various specifications of medium, normal and high temperature filter materials to meet the needs of various complicated working conditions.

The pulse bag filter is also known as the pulse bag filter. It is a mature dust removal device and is suitable for collecting fine, dry and non-fibrous dust. The bag filter has a wide application range and the dust removal efficiency is over 99%. It can be matched with various specifications of medium, normal and high temperature filter materials to meet the needs of various complicated working conditions. 

The current pulse bag filter has been widely used in dust removal projects in various industries. Moreover, the pulse bag filter is the most widely used and dust-removing device in China. It can also be used on the pneumatic conveying pipeline with positive and negative pressure. It can be completed by rotating the material by the star unloader impeller. The gas path partition plays a role of sealing. 

In the process of pneumatic conveying, the gas solids in the pneumatic output system are relatively stable, the air flow pressure is not leaked, and the material is not reversed, which can ensure the normal operation of the pneumatic conveying equipment.

The key core component of the pulse bag filter is the dust bag. The length of the dust bag is directly related to the filter wind speed. Therefore, the key to correctly selecting the filter wind speed is to understand the nature of the dust and dust gas, and secondly understand and Understand the relationship between filtration wind speed and dust removal efficiency, filtration resistance, and cleaning performance. After analysis, the filtered wind speed (also called air cloth ratio) of the XMC pulse bag filter is generally closely related to the temperature of the treated exhaust gas, the dust concentration and the particle size of the dust, that is, V=f*(T, C, dp). Among these three parameters, mainly the particle size of the particles.

For the nature of dust and dusty gases, the following points should be mastered to the maximum:

1. To understand the particle size distribution of dust. The particle size of dust is its basic characteristic. It is an aggregate composed of particles of different particle sizes. It is not enough to simply characterize such aggregates with average particle size.

2, to find out the viscosity of the dust. The viscosity of the dust is a characteristic of attraction between the dust or between the dust and the molecules on the surface of the object. For bag filters, the effect of stickiness is more pronounced because the dust removal efficiency and filtration resistance depend to a large extent on the ability to remove dust from the filter material.

3. The bulk density or bulk specific gravity of the dust should be clarified, that is, the weight of the dust per unit volume. The unit volume includes the volume of the dust particles themselves, the volume of air adsorbed on the surface of the dust particles, the micropores of the dust particles themselves, and the gaps between the dust particles. Knowing the bulk density of dust is of great significance for ventilation and dust removal because it is closely related to the dust cleaning performance.

4. The physical and chemical properties of the dust-containing gas, such as temperature, moisture content, chemical composition and properties, should be clarified. The determination of these parameters has a direct and indirect relationship with the dust removal additional treatment measures and the selection of the filtration wind speed.

All in all, the selection of the filtration wind speed is a key parameter in the design of the bag filter, which is directly related to the level of dust removal efficiency. After measuring the relevant parameters of each dust collector in the engineering application, the relationship between the filtered wind speed and the exhaust gas temperature, the smoke dust concentration in the exhaust gas, and the particle size of the smoke dust is obtained through curve fitting, thereby better passing the pair. The control of the filtering wind speed realizes the rational use of the pulse bag filter.

The above is a simple analysis of the filtering wind speed problem of the pulse bag filter, I hope you can get inspiration from it.