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We have three kinds of sewage grinder: drumless grinder, single drum grinder and double drum grinder. It is a kind of new type of trash-removal device to deal with solid particles. It is widely used in sewage industry, replacing the traditional grill screen cleaner.

The machine can crush the floating dregs and fibre in the sewage into 6-10mm tiny particles, processed with sewage by later procedures. There is no need to deal with the dregs in the grilling. It can be buried in the ground, so the buried pump station can be true. The stink is prevented with the machine, at the same time, the damage of flies and mosquitos are forbidden. What’s more, it can reduce the occupied area of land greatly, and protect our environment.

The process starts in the screen that holds back solids only. The internal part of the screen is continuously cleaned by brushes fixed on the outside diameter of the flighting. As the water runs through the screen the shaftless spiral conveys the solids up towards the compaction module where the material is further de-watered. Depending to the material properties, screenings can be reduced by more than 50% of their original volume.

1. The driving unit is directly driven by cycloidal gear reducer or helical gear reducer which shows the nature of working stability, low noise, big load capability and high efficiency in conveying.

2. Simple structure with compact size, easy to install and move. Device can self-clean up while working, easy to maintain.

3. Easy to operate, can be controlled directly on the spot or remote.

4. Include overload protection device, machine will shut down automatically when malfunction happens to avoid damage.

5. When the device width exceeds 1500mm, will be made into parallel machine to ensure the overall strength.

The Rotary Drum Screen is a reliable and well-proven inlet screen for municipal sewage treatment plants, industrial wastewater and process water screening. Its operation is baesd upon a unique system that also allows a combination of screening, washing, transport, compaction and dewatering in a single unit.The screening elements can be either wedge wire spaced at 0.5-6mm, or 1-6mm perforated drums.

◆ Used in papermaking, slaughter, leather, sugar, wine, food processing, textile, printing and dyeing, petrochemical and other small industrial wastewater treatment, to remove suspended solids, floating substances, sediments and other solid substances.

◆ Used in papermaking, alcohol, starch, food processing and other industries to recycle useful substances such as fiber and slag.

◆ Used for small water supply and drainage pretreatment.

◆ Used for pretreatment of sludge or river dredging.

◆ Various sewage treatment projects of different types and sizes.

This is a kind of advanced solid-liquid separation device in water treatment, which can continuously and automatically remove debris from wastewater for sewage pretreatment. It is mainly used in municipal sewage treatment plants, residential quarters sewage pretreatment devices, municipal sewage pumping stations, waterworks and power plants, also it can widely be applied to water treatment projects of various industries, such as  textile, printing and dyeing, food, fishery, paper, wine, butchery, curriery etc.

1. The material is high-strength and corrosion-resistant stainless steel; Less used field area; Convenient construction; It can be directly fixed with expansion bolts without channel construction; Inlet and outlet water can be connected with pipes.

2. The screen will not be blocked by waste solid because the machine is inverted trapezoid cross section

3. The machine is controlled by adjustable-speed motor, which can maintain optimum working condition according to water flow.

4. Special washing device can brush away the impurities on the surface of screen, after twice internal brush, it will achieve the best cleaning effect.

1. The material is high-strength and corrosion-resistant stainless steel; Less used field area; Convenient construction; It can be directly fixed with expansion bolts without channel construction; Inlet and outlet water can be connected with pipes.

2. The screen will not be blocked by waste solid because the machine is inverted trapezoid cross section.

3. The machine is controlled by adjustable-speed motor, which can maintain optimum working condition according to water flow.

4. Special washing device can brush away the impurities on the surface of screen, after twice internal brush, it will achieve the best cleaning effect.