How to choose a dust collector

How to choose a good dust collector? To choose a good dust collector, it is necessary to correctly understand and comprehend the relationship between dust removal efficiency and filtration wind speed, dust removal performance, and filtration resistance.

Among the several technical parameters of a dust collector, the air velocity of the filter is crucial. Firstly, we must know the properties of dusty gases and dust. So how do you know the properties of dusty gases?

(1) Understand the bulk density or bulk density of dust, which is the weight of dust per unit volume. The unit volume includes the volume of dust particles themselves, the pores of dust particles adsorbed on their surfaces, the amount of air, and the gaps between dust particles. Clarifying the packing density of dust is of great significance for ventilation and dust removal, as it is closely related to the dust removal performance.

(2) Understand the chemical and physical properties of dusty gases, such as moisture content, temperature, chemical composition, and properties. The determination of these parameters is directly and indirectly related to dust removal and other treatment measures for selecting filter air speed. If the gas containing dust contains chemical components such as chlorides, chlorides are usually prone to "hygroscopicity". If no other measures are taken, it may cause the dust bag to "dust up".

(3) Understand the particle size distribution of dust. The particle size of dust is its basic characteristic. It is a combination of particles of various sizes. Merely characterizing the aggregate based on average particle size is not sufficient.

(4) Understand the viscosity of dust. The viscosity of dust is a characteristic of mutual attraction between dust particles or between dust particles and molecules on the surface of objects. For bag filters, the influence of viscosity is more prominent, as the dust removal efficiency and filtration resistance mainly depend on the ability to remove dust from the filter material.

In the design process of dust collectors, other relevant technical parameters cannot be ignored. It is necessary to know that from the current design practice of dust removal equipment in China, it is still difficult to collect comprehensive and accurate data on the above four aspects. That's all for today's sharing. Welcome to follow the official website of Yongming Machinery.