Manufacturer supplies industrial bag filter net Quanzhou bag dust removal equipment

Description :

　　Product Maintenance

　　Regularly check the operation of control valves, pulse valves, and timers.

　　The failure of the pulse valve rubber diaphragm is a common fault in bag filters, which directly affects the dust cleaning effect. This device belongs to the external filter type, with a skeleton inside the bag. It is necessary to check whether the parts that fix the filter bag are loose and whether the tension of the filter bag is appropriate. Is the support frame smooth to prevent wear and tear on the filter bag. Compressed air is used for dust removal. Therefore, it is required to remove oil mist and water droplets, and the oil-water separator must be cleaned regularly to prevent malfunction of the moving mechanism and blockage of the filter bag.

　　Whether the air volume and pressure and temperature at each testing point are consistent with the design.

　　The installation status of the 3 filter bags, whether there are any occurrences of bag dropping, loosening, wear, etc. after use, can be judged by visually observing the emissions of the chimney after operation.

　　4. Prevent condensation

　　During use, it is necessary to prevent the gas from cooling below the dew point in the bag chamber, especially when using a bag filter under negative pressure. Due to the frequent leakage of air into the outer shell, the gas temperature in the bag chamber is lower than the dew point, causing the filter bag to become damp. This results in dust not being loose but sticking to the filter bag, blocking the fabric holes and causing dust removal failure. This leads to excessive pressure drop in the dust collector, making it unable to continue operating, and some bags may become stuck and unable to remove dust.

　　To prevent condensation, it is necessary to maintain the temperature of the gas in the dust collector and its system at 25-35 ℃ above its dew point (such as the dew point temperature of 58 ℃ for kiln mill integrated machines, and the operating temperature should be above 90 ℃), in order to ensure the good use effect of the filter bag.

　　The commonly used spray type dust removal equipment is divided into three structures according to the flow patterns of gas and liquid inside the dust removal equipment:

　　(1) Downstream spray type, where gas and water droplets flow in the same direction

　　(2) Reverse flow spray type, where liquid is sprayed against the airflow

　　(3) Cross flow spray type, which sprays liquid in the direction perpendicular to the airflow.

　　pressure loss

　　The pressure loss of bag filter refers to the pressure drop or resistance of gas from the inlet to the outlet of the dust collector. The pressure loss of bag dust removal depends on the following three factors:

　　⑴ Pressure loss of equipment structure.

　　⑵ Pressure loss of filter material. Related to the properties of the filter material (such as porosity, etc.).

　　The pressure loss of the dust layer accumulated on the filter material.

AfterSalesService :

• bag filter