Manufacturer supplies cutting bag dust collector Quanzhou bag dust removal equipment after-sales service

Description :

　　preparation

　　1. Check if all connection parts are securely connected.

　　2. Check the sealing of the joints between the dust collector and the flue, the dust collector and the ash hopper, the ash hopper and the ash discharge device, the ash conveying device, etc., and eliminate the phenomenon of ash leakage and air leakage.

　　3. Close the baffle valve, start the ventilation fan, and gradually start it after there are no abnormal phenomena.

　　Technical Requirements

　　1. Pay attention to changes in easily worn areas such as the inner wall of the outer cylinder.

　　2. Pay attention to the adhesion, blockage, and corrosion of dust when the temperature or humidity of dusty gases changes.

　　3. Pay attention to changes in pressure difference and the condition of smoke discharge. Because wear and corrosion can cause perforation of the dust collector and result in dust emissions, the dust removal efficiency decreases, the exhaust smoke color deteriorates, and the pressure difference changes.

　　4. Pay attention to the airtightness of each part of the cyclone dust collector, and check the changes in the gas flow rate and dust concentration of the cyclone tube.

　　The characteristic of a reflux inertial dust collector is to divide the intake flow into small streams of air using baffles. In order to ensure that any airflow has the same smaller turning radius and larger turning angle, various louver baffle structures can be used.

　　The louver baffle can increase the speed of the airflow before a sharp turn, effectively improving the separation efficiency. But the speed should not be too high, otherwise it will cause secondary flying of the captured particulate dust, so an airflow speed of 12-15m/s is generally selected.

　　The size of the louver baffle also has a certain impact on the separation efficiency. Generally, the length of the baffle selected (along the airflow direction) is about 20mm; The distance between the baffles is about 3-6mm; the installation angle of the baffles (angle with the plumb line) is about 30 °, which makes the airflow return angle about 150 °.

　　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.

AfterSalesService :

• bag filter