--- If the operation of CFB boiler needs to stop temporarily, the banking fire operation could be carried out and it should be kept to be hot standby for the starting at ant y time.
   --- When the boiler is for banking, reduce the load to be the lowest and stop feeding, make the fuel in the bed totally burnt. When the indicated value of oxygen gas increased to be at least two times of the normal value, stop supplying air to the combustion chamber so as to decrease the bed heat loss. Shut off the inlet vane of air fan and the control damper of the air duct, the furnace should be kept to be without fire or it should be fired.
   --- If it is started under the premise that the bed temperature is lower than 500℃, the start-up oil burner should put into use and the bed temperature should be increased to be more than 500℃, and then feeding.
   --- During the whole banking and hot start-up process, the drum water level should be kept to be normal.