Fly ash carbon content measuring mechanism and on-line measuring equipment

The invention discloses a fly ash carbon content measuring mechanism and on-line measuring equipment, the fly ash carbon content measuring mechanism comprises a burning chamber, an ash receiving disc, a weighing element and a heating device, the weighing element is arranged below the burning chamber, the ash receiving disc is horizontally arranged in the burning chamber, the ash receiving disc is located right above the weighing end of the weighing element, and the heating device is arranged on the burning chamber. A supporting rod is vertically arranged in the middle of the lower end of the ash receiving disc, the lower end of the supporting rod extends downwards to penetrate through the burning chamber and is in sealed sliding contact with the burning chamber, the lower end of the supporting rod abuts against the weighing end of the weighing element, an ash inlet is formed in the upper portion of the burning chamber and extends inwards to the upper portion of the ash receiving disc, and an ash suction openi