5) Basic requirements for combustion control(1) There should be mature and reliable combustion control measures including grate control;(2) First, the secondary fan needs automatic adjustment measures such as frequency conversion;(3) CO and/or O2 detection devices are installed behind the combustion chamber, control the amount of combustion air;(4) There should be a camera to observe the combustion status;(5) There should be a thermometer to measure the temperature of the combustion zone