Several parameters commonly used in boiler bag dust collector selection
2019-12-10
1. Pressure loss and dust cleaning cycle: As the inlet concentration increases, dust accumulates quickly on the same filter area, and the pressure loss increases accordingly. As a result, the frequency of dust cleaning has to be increased.
2. Wear of the filter bag and box: When the dust is highly abrasive, the amount of wear can be considered to be proportional to the dust concentration.
3. Is pre-dust collection necessary? Pre-dust collection is to add another level of dust removal equipment before the entrance of the dust collector, also called front-stage dust removal.
4. Ash discharge capacity of the ash discharge device: The ash discharge capacity of the ash discharge device should be based on the ability to discharge all collected dust. The dust amount is equal to the inlet dust concentration multiplied by the processing air volume.
5. Operation mode: The bag dust collector is divided into two operating modes: positive pressure and negative pressure. In order to reduce fan wear, the positive pressure operation mode should not be used if the inlet concentration is large. Dust collector selection - outlet dust concentration. The outlet dust concentration refers to the emission concentration of the dust collector. The expression method is the same as the inlet dust concentration. The size of the outlet dust concentration should be based on local environmental protection requirements or user requirements. The bag dust collector The emission concentration is below 50mg/Nm3.
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