Ignition device for nitric acid oxidation furnace

The utility model provides an ignition device for a nitric acid oxidation furnace. The ignition device comprises an ignition resistance wire, a supporting body and a sealing ring, the ignition resistance wire is embedded in the supporting body, the two ends of the ignition resistance wire extend out of the two ends of the supporting body respectively, at least one end of the ignition resistance wire is connected into a power source, at least one end of the supporting body is connected with a hand wheel, and the outer circumferential face of the supporting body is sleeved with the sealing ring.The technical scheme of the utility model is adopted; preferably, the sealing ring is made of an acid-corrosion-resistant material. Ignition device use, nitric oxide in the oxidation furnace cannot corrode the ignition resistance wire and the supporting body immediately; therefore, the normal use of the ignition device is guaranteed, the service life of the ignition device is prolonged, the equipment maintenance cost of