One month after the pulse dust collector is started, the operation time of the pulse dust collector is the initial operation stage of the pulse dust collector. This month is the period when the bag filter is most prone to malfunctions. For example, the operators of the dust collector are not skilled in the technical process, and the dust bag selection and installation are unreasonable. , Equipment debugging problems, etc. Only when problems are eliminated in time with full attention can the goal of stable operation be achieved.
- Processing air volume: In order to stabilize the pressure loss of the dust removal bag, the method of greatly increasing the processing air volume during operation is often used to allow the gas to flow through the dust removal bag smoothly. At this time, if the fan motor is overloaded, the total valve can be used to adjust the air volume. Because this situation can take a few minutes as quickly as possible, and take several days to return to normal. Therefore, it is best for the workshop dust collector to observe the pressure gauge at the beginning. The corresponding air volume value can also be calculated from the reading of the ammeter on the control panel.
- Temperature adjustment: It is easier to use a bag filter to process flue gas dust at room temperature, but when processing high temperature and high humidity gas, initial operation, if not preheated, the dust bag is easy to get wet, and the filter gap of needle felt filter material is easy to block The bag is glued and cannot be operated. In addition, if the dust bag is not fully dried, condensation will often occur. It is difficult to accurately predict the dew point of the bag filter, so attention must be paid to the clogging of filter holes and the corrosion of the inner surface of the dust collector casing due to condensation.
- The problem of dust removal efficiency: After the dust removal cloth bag forms a dust absorption layer, the dust removal efficiency of the cloth bag is the highest at this time. At this time, the bag filter is in an unstable state due to the increase in the initial processing air volume. Therefore, it is better to measure the dust removal efficiency from several days or one month after operation. In a steady state, the dust removal efficiency of low-concentration dust with very fine particles should generally be above 99.9%.
- Dust discharge and the dust collected in the ash hopper can be discharged automatically or manually, but must be discharged in the prescribed order. In the early stage of operation, the dust is often not discharged for one to several days. The dust sticks to the dust bag until it reaches the maximum dust holding capacity of the dust collector, and then discharges in order. If the dust discharge cycle is incorrect, a stable operation system cannot be formed. Generally, when the amount of recovered dust is too much, it is mostly because the originally designed predetermined value is not accurate. If the predetermined value of dust quantity is not reached, the dust must be taken out continuously at the beginning to control the amount of recovered dust.