Causes of damage to high-temperature filter bags

The selection of dust removal bag manufacturers has an impact on flue gas emissions. The selection of filter bags has an impact on flue gas emissions. Different types of filter materials in high-temperature filter bags have different filtration accuracy. Generally speaking, the filtration accuracy of glass fiber filter material is as follows: open width<needle felt filter material<expanded yarn filter material<membrane covered filter material; The impact of ash cleaning methods on flue gas emissions: Under the same conditions, the higher the ash cleaning pressure, the greater the impact on dust emissions; The impact of dust content in flue gas on flue gas emissions: Under the same conditions, the higher the cleaning pressure, the greater the impact on dust emissions; The impact of the production process of dust removal equipment on flue gas emissions: The production level, sealing performance, welding level, and pipeline sealing of dust removal equipment directly affect the concentration of flue gas emissions.

Liquid filter bags are a crucial part of the filtration process when used, and the quality of the filter bags greatly determines the filtration effect of users. Liquid filter bags are equipped with zhuanli structure ring mouths to a certain extent, and the entire equipment is manufactured using its professional production equipment. Our company has a variety of filter bag materials and complete specifications. It can meet the needs of various applications in a targeted manner.

The filtration of liquid filter bag can effectively use some Porous medium to effectively filter the suspension

Effective separation operation: When the filter bag is working, under the action of external force, the liquid in its suspension will flow out through the pores of the medium, and solid particles will be intercepted, thus achieving separation.

Corrosiveness, sealing, high lubrication and non adhesion, electrical insulation and good anti-aging endurance. High temperature resistance - operating temperature can reach 260 ℃; Corrosion resistance - shows inertness and resistance to strong acids, alkalis, water, and various organic solvents for most chemicals and solvents; Climate resistance - aging life in plastic; High lubrication - a material with a coefficient of friction in solid plastics; Non adhesion - refers to the minimum surface tension in solid materials that do not adhere to any substance; Non toxic - It is physiologically inert and has no adverse reaction after long-term implantation as an artificial blood vessel and organ.

The number of pores in the filtering medium of the liquid filter bag is smaller than the diameter of the solid particles, and the solid particles are removed from the suspension through sieve analysis. At the initial stage of filtration, fine particles flow out, and after a period of use, the filter bag will have problems of one kind or another. These problems are enough for us to pay attention to. Only by solving these small problems, the dust bag manufacturer can make the entire dust removal equipment run normally and smoothly. So what are the factors that can easily cause problems with dust removal bags? We can understand that product quality is particularly important for the processing of dust removal bags.

In recent years, some small manufacturers have used small sewing machines as processing equipment, and use inferior thread as raw materials during processing, using fake threads as genuine ones, and the processing level is far behind. Causes the filter bag to open, crack, or fall off after a short period of use. Although the size of the cloth bag is slightly smaller, it can also be used, but after adsorbing dust with a higher specific gravity, it will cause the bag to fall off after a period of use.

Bag filter is a dry dust filtering device. It is suitable for capturing small, dry, and non fibrous dust. The filter bag is made of textile filter cloth or non-woven felt, and uses the filtering effect of fiber fabric to filter the dusty gas. When the dusty gas enters the bag filter, the large and heavy particles of dust settle down due to the action of gravity and fall into the ash hopper, containing gas with finer and smaller dust

When passing through the filter material, the dust is blocked and the gas is purified.

The dust removal efficiency of general new filter materials is not high enough. After using the filter material for a period of time, due to the effects of screening, collision, retention, diffusion, static electricity, etc., a layer of dust accumulates on the surface area of the filter bag, which is called the primary layer. In the subsequent movement process, the primary layer becomes the main filtering layer of the filter material. By relying on the role of the primary layer, filter materials with larger mesh holes can also achieve higher filtering efficiency. As dust accumulates on the surface of the filter material, the efficiency and resistance of the dust collector correspondingly increase. When the pressure difference on both sides of the filter material is large, some small dust particles that have already adhered to the filter material will be squeezed, causing a decrease in the efficiency of the dust collector.

The selection of dust medium dust removal cloth depends on the dust properties of the dust, and it is necessary to consider whether the dust contains acids, alkalis, or highly corrosive substances. Select suitable filter materials based on the nature of the dust, so that the filter bag can adsorb the dust normally without affecting its service life.

Accurately selecting dust removal bags that are suitable for the corresponding dust temperature is the key to filter bags. If the temperature transition is too high, the selected dust removal bag will exceed the normal operating temperature. If the filter bag is light, it will shorten its service life, and if severe, it will burn out in a short period of time. Therefore, when selecting filter bags, it is necessary to measure and calculate the inlet temperature of the dust collector, and then select the corresponding dust removal cloth bag. 4、 Filter the wind speed. The high filtration wind speed of the bag filter is the main reason for the damage of the dust removal bag.

The liquid is relatively cloudy. As the cake layer forms and thickens, the filtrate gradually becomes clear. Due to the gradual blockage of the sieve holes, the filtration speed shows a decreasing trend.