In the sewage treatment process,Rotary rake grille cleaning machineResponsible for intercepting debris and ensuring the safety of subsequent equipment, precise selection is crucial to the overall efficiency of the processing system. The key selection parameters are analyzed in detail below.

The spacing between grids determines the size of intercepted particles. The composition of sewage is diverse. Domestic sewage contains hair, vegetable leaves, etc., while industrial wastewater contains plastic debris and fiber debris. If municipal sewage is treated, the grid spacing should be set at 10-20mm to intercept larger suspended solids; In the face of industrial wastewater containing fine fibers such as textiles and papermaking, it is necessary to shrink it to 5-10mm or even smaller to prevent fine impurities from slipping through and avoid subsequent pipeline blockages and pump impeller wear.

The adaptability of channel width should not be underestimated. The width of the equipment should be accurately matched with the sewage channel. If it is too narrow, the water flow will be restricted, congestion will occur easily, and the treatment efficiency will be reduced; Being too wide not only takes up redundant space and increases costs, but also disrupts the flow of water in front of the grille, interfering with the interception effect. During design, it is necessary to accurately measure the size of the channel and follow suit to ensure smooth water flow.

The material of the rake teeth is related to durability. Sewage is highly corrosive, containing acidic and alkaline components or friction with hard objects. Stainless steel rake teeth are corrosion-resistant and wear-resistant, suitable for most scenarios; In strong acid and alkali environments, special materials such as Hastelloy alloy can be used. Although the cost increases, the service life is extended, reducing the trouble of frequent replacement.

The amount of water processed determines the size of the specifications. A large-scale sewage treatment plant with a daily processing capacity of tens of thousands of cubic meters requires a large flow grid machine, equipped with high-power motors and reinforced transmission structures to meet the rapid filtration of peak water flow; For small-scale community or factory sewage treatment plants, compact models should be chosen to save space and energy consumption, and meet actual needs.

The installation method affects the convenience of operation and maintenance. There are various types of ground supports, wall mounted, buried, etc. The ground type is easy to maintain, intuitive to operate, and suitable for conventional layouts; Wall hanging saves space and is beneficial for small spaces; The buried type is aesthetically pleasing and anti freezing, but it requires high waterproofing and maintenance difficulty, which needs to be balanced based on the site conditions.

From grid spacing to channel width adaptation, from rake tooth material to water treatment capacity consideration, and then to installation method selection, the selection of rotary rake type grid cleaning machine is carefully carried out step by step, closely following the characteristics and treatment requirements of sewage, and using precise parameter combinations to build a solid defense line for sewage pretreatment, ensuring the smooth sailing of the water process.