| 摘要 |
The present invention relates to a three-pass dry-type boiler using a pellet comprising: three pipes inside a boiler which produces a heat source using a raw material of the pellet; an insulating material with a fixated thickness (thick) formed on a rear plate, and a rear door in a rear combustion chamber; and a supporting bar and a connecting bar where a front plate and a front door are connected by the insulating material with a fixated thickness in order to easily open or close when the front door is opened or closed. The present invention is made to easily clean the insides of each pipe on a rear portion not to be engaged by the rear plate when the rear door is opened or closed by having a plurality of fledspars on the rear plate and the rear door when the rear door is opened or closed. The present invention can reduce the costs in operating the boiler by using the pellet, thereby being able to recycle a resource as well as being environmentally friendly. |
