Ignition device

The utility model discloses an ignition device. The ignition device comprises an air chamber, a heating chamber, an ignition chamber and a burner communicated in sequence, an ignition wind powder pipeline entering the ignition chamber and used for conveying ignition wind powder, and a heater arranged in the heating chamber, wherein the air chamber has a gas inlet through which the gas inflows, and the burner has a primary wind powder inlet. According to the ignition device, the heater is arranged in the heating chamber, the purpose that the heater is arranged outside the burner is realized, and the heater maintenance and change are facilitated; the high-temperature gas for ignition and the ignition wind powder are isolated from the primary wind powder air current, the influence of the primary wind powder air current to the high-temperature gas for ignition and the ignition wind powder is avoided, the ignition can be regulated independently, and the regulation performance of the ignition device is improved; the ignition device is capable of using concentrated phase conveying ignition wind powder, the high-temperature gas needed for ignition is reduced, the high-temperature gas temperature needed for ignition is lowered, and high-concentration pulverized coal is ignited by a little of high-temperature gas.