| 摘要 |
PROBLEM TO BE SOLVED: To prolong the service life of a scraper arranged in a combustion chamber.SOLUTION: A treatment device A includes a combustion chamber 1 having a supply port 7 of exhaust gas on one end 1a side and a burner 8 in a position separated from the supply port 7, a scraper 2 having a shaft 2c penetrating through the end 1a to be rotatably disposed and a scraping member 2a attached to the shaft, and a bearing member 3 arranged on the outer side of the end 1a so as to rotatably support the shaft 2c and to supply a cooling medium. A cooling medium passage 11 is formed over almost the whole length of the scraping member 2a, and a cooling medium supply passage 12 communicated with the cooling medium passage 11 and a cooling medium supply port 12a communicated with the cooling medium supply passage are formed in the shaft 2c, and in the bearing member, a ring shaped groove 16b is formed at a portion corresponding to the cooling medium supply port when the shaft is fitted, and the cooling medium can be supplied to the scraper 2 through the groove. |
