Burning furnace is fired with double -deck cooling jointed harrow flute profile drag arm to light -burned magnesium oxide multilayer

The utility model relates to a burning furnace is fired with double -deck cooling jointed harrow flute profile drag arm to light -burned magnesium oxide multilayer, two -layer cavity inside and outside the center pin setting of drag arm is, center pin inner chamber lower extreme are the cooling air entry, and center pin exocoel upper end exports for cooling air, the drag arm is provided with dragarm inner chamber and drag arm exocoel, is provided with in the drag arm exocoel mouth that communicates with each other between drag arm inner chamber and the drag arm exocoel, and the drag arm innerchamber is linked together with the center pin inner chamber, and the drag arm exocoel is linked together with the center pin exocoel. The utility model discloses the radiating effect is good, and the temperature is low. In the multiple bedded furnace, only at the high cr heat resisting steel of the nozzle place layer high ni of use. Only need to adopt ordinary heat resisting steel on other layers. The the investment cost