污水處理一個重要步驟是通過機(jī)械處理，如格柵、沉淀或氣浮，去除污水中所含的石塊、砂石和脂肪、油脂等。這樣才能進(jìn)行后續(xù)處理工作。
格柵除污機(jī)的工作原理是由一種獨特的耙齒廠裝配成一組回轉(zhuǎn)格柵鏈。在電機(jī)減速器的驅(qū)動下，耙齒鏈進(jìn)行逆水流方向回轉(zhuǎn)運動。
耙齒鏈運轉(zhuǎn)到設(shè)備的上部時，由于槽輪和彎軌的導(dǎo)向，使每組耙齒之間產(chǎn)生相對自清運動，絕大部分固體物質(zhì)靠重力落下。另一部分則依靠清掃器的反向運動把粘在耙齒上的雜物清掃干凈。
按水流方向耙齒鏈類同于格柵，在耙齒鏈軸上裝配的耙齒間隙可以根據(jù)使用條件進(jìn)行選擇。當(dāng)耙齒把流體中的固態(tài)懸浮物分離后可以保證水流暢通流過。An important step in sewage treatment is the removal of stones, sand, fats and oils from wastewater by mechanical treatment, such as grilles, precipitation or air flotation. Only in this way can follow-up work be carried out. The working principle of the grille decontamination machine is that a unique rake factory is assembled into a group of revolving grille chains. Under the drive of the motor reducer, the chain of the rake chain turns against the water flow. When the rake gear chain runs to the upper part of the equipment, due to the guidance of the groove wheel and the bent rail, the relative self-cleaning movement occurs between each group of rake teeth, and most of the solid materials fall by gravity. The other part relies on the reverse movement of the sweeper to clean up the debris stuck to the rake. The rake gear chains in the direction of water flow are similar to grids, and the rake gear clearance assembled on the rake gear chain shaft can be selected according to the operating conditions. When the rake teeth are separated from the solid suspension in the fluid, the flow can flow smoothly.
