Hot gas purification
    2.
    发明授权
    Hot gas purification 失效
    热气净化

    公开(公告)号:US3375637A

    公开(公告)日:1968-04-02

    申请号:US53348166

    申请日:1966-03-11

    发明人: FRANZ KAESS OTTO KICK

    摘要: 1,079,825. Removal of organic constituents and dust from hot furnace gases. SUDDEUTSCHE KALKSTICKSTOFF - WERKE A.G. March 11, 1966 [March 12, 1965], No. 10741/66. Heading BIB. Volatile organic constituents and residual dust are removed from pre-purified hot waste gases of electric smelting furnaces in a vertical cooler 1, the gases entering at 4 and flowing upwardly over narrowly divided cooling surfaces in indirect countercurrent contact with cooling medium which cools the upper zone to a temperature for condensing low boiling constituents and cools the lower zone to a temperature for condensing the high boiling constituents. Dust is deposited, with slow gas flow of 5 m/sec., on the lower zone walls and is washed away by the condensate of the more easily volatile organic compounds and removed through a heated discharge tube 7. Pure gas is withdrawn through line 6.