Manufacturer supplies bag air dust collector accessories 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.

　　condensation

　　If the thermodynamic properties of the flowing gas flow are controlled to induce gas condensation, particles can act as growth nuclei during the condensation process. Then the particles covered with liquid on the surface are more easily captured through the main trapping mechanism mentioned above. The usual method of obtaining condensation is to compress steam and gas at lower pressures to higher pressures, introduce steam into a saturated gas stream, or/and directly cool the gas stream.

　　Electrostatic charging

　　When there are different electrostatic charges between particles and droplets, it will be more effective to combine dust particles and droplets. The electrostatic washer utilizes this mechanism to enhance the attraction of dust and water droplets, thereby improving the efficiency of dust collection.

　　The high dust removal efficiency of bag filter is inseparable from its dust removal mechanism. When the dusty gas enters the ash hopper through the lower intake pipe of the dust collector and the guide plate, due to the collision of the guide plate and the decrease in gas velocity, coarse dust particles will fall into the ash hopper, while the remaining fine dust particles will enter the filter bag chamber with the gas. Due to the inertia, diffusion, barrier, hooking, static electricity and other effects of the filter fiber and fabric, the dust is trapped in the filter bag, and the purified gas escapes from the bag and is discharged through the exhaust pipe. The accumulated dust on the filter bag is removed by gas backwashing method, and the removed dust is discharged to the ash hopper and discharged to the ash conveying device through the double-layer ash discharge valve. The dust accumulation on the filter bag can also be removed by spraying pulse airflow to achieve the purpose of cleaning, and the removed dust is discharged by the ash discharge device. The high dust removal efficiency of a bag filter is also inseparable from the filter material. The performance and quality of the filter material directly affect the performance and service life of the bag filter. The filtering material is the main material for making filter bags, and its performance and quality promote the progress of bag dust removal technology, affecting its application scope and service life.

AfterSalesService :

• bag filter