Stainless steel bag filter is an efficient and environmentally friendly dust removal equipment, which is widely used in various industrial dust control fields. The filtering principle is mainly based on the principles of "inertial collision" and "intercept and capture", and the specific process is as follows:
When the dust-containing gas enters the stainless steel bag dust collector, the larger dust particles collide with the filter bag under the action of inertial force and are intercepted. Smaller dust particles pass through the filter bag with the air flow, but due to the blocking and adhesion of the bag fibers, the dust particles are gradually adsorbed on the surface of the bag. As time goes by, more and more dust particles are adsorbed on the surface of the bag, forming a dust layer, which is also called a "filter cake".
When the dust layer is formed, when the gas in the dust collector passes through this layer of "filter cake", due to the barrier and filtration effect of the "filter cake", the dust particles are further intercepted, so as to achieve the purpose of purifying the gas. At the same time, the thickness of the "filter cake" gradually increases, resulting in a gradual increase in the resistance of the gas through the dust collector. Therefore, the bag needs to be cleaned or replaced regularly to maintain its good filtration performance.
The filtration performance of the stainless steel bag filter is also affected by a variety of factors, such as the material, structure, pore size, installation method, ash cleaning method, etc. According to different working conditions and dust characteristics, it is necessary to choose the appropriate filter bag and ash cleaning method to achieve the best dust removal effect.
In a word, the filtration principle of stainless steel bag filter is based on the principle of inertial collision and interception and capture, and the purpose of purifying the gas is achieved through the formation of "filter cake". In practical application, it is necessary to select the appropriate filter bag and ash cleaning method according to the working conditions and dust characteristics to ensure the normal operation of the dust collector and good dust removal effect.