| 摘要 |
A screen equipment for a sewage and wastewater treatment system, which can prevent damages of the scraper and the rakes as well as drive parts by maintaining contact positions between a scraper and rakes always constantly, is provided. In a screen equipment for a sewage and wastewater treatment system, comprising screen frames(20), upper sprockets(30) and lower sprockets installed on upper and lower parts of the screen frame, chains connected to the upper and lower sprockets in a closed loop shape, rakes connected to the chains and circulated by rotation of the chains, and a scraper(70) that comes into contact with surfaces of the rakes on areas adjacent to the upper sprockets, the screen equipment for the sewage and wastewater treatment system is characterized in that the upper sprockets and the scraper are interlocked with each other such that the upper sprockets and the scraper are movable up and down in a predetermined section with respect to the frames. In an upper area of the screen frames, the screen equipment comprises: a sprocket supporting block(31) moved up and down relative to the screen frames while rotatably supporting the sprocket shaft of the upper sprockets; a scraper shaft(33) moved up and down relative to the screen frames while supporting one end of the scraper; and an interlocking bracket(80) for connecting the sprocket supporting block and the scraper shaft to move the sprocket supporting block and the scraper shaft. |
