On the cleaning of ash accumulation in the circulating fluidized bed economizer and air preheater
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Our plant’s 20-ton circulating fluidized bed has been in operation for 3 years. Due to recent environmental regulations, bituminous coal with 15% ash content must be used for combustion. As the load is low, the air flow rate is not high, which results in ash accumulation in the economizer and air preheater. We are seeking effective methods for cleaning this ash. I would be very grateful if experts could provide some guidance:handshake
Compressed air purging can be performed regularly.
We use compressed air to push the iron pipe in first, then blow while pushing hard.
Negative pressure evacuation can be used; we are specialists in material transportation
Home-use rotary soot blower, operated by compressed air
Okay, thank you for the advice:victory:
First of all, thank you for providing me with this method. We had also thought of using the handshake approach, but our economizer is made of iron, and we are concerned that exposure to water could accelerate its corrosion