The mechanical drum type screen cleaning machine integrates the functions of traditional mechanical grille, conveyor, and screw press into one,drum type grille machine,drum type screen machine
Sewage enters the drum from the end of the drum and flows out through the grid gaps on the side of the drum. The grid traps suspended solids, floating objects, and other substances in the water in the drum. The drum rotates at a speed of 4-6 r/min, and there is a nylon brush and flushing nozzle above the drum to remove the grid slag. After being squeezed and dehydrated by a screw conveyor, it is transported to the upper hopper.
The drum type screen machine is widely used in the pre-treatment of urban domestic sewage.
Working Princilpe
The equipment is installed in a water channel at a 35 ° angle to the horizontal plane. Sewage flows into the drum from the end of the drum, and water flows out through the gaps in the grid mesh. Solid waste is filtered into the grid mesh basket. The cleaning arm with rake teeth cleans the gaps in the grid mesh during circular movement, and the rake teeth extend into the grid mesh to remove the solid.
When the cleaning arm is at a high point, the waste is removed from the rake teeth through water flushing and the action of the slag baffle, And it falls into the spiral conveyor bucket of the garbage collection device, which is dehydrated through the action of variable pitch during the transportation process. It is squeezed dry in the upper compression zone, and the squeezed water is returned to the water channel. The garbage is then sent to the container or subsequent equipment for treatment.
Application
Ordinary grid cleaning machines must be equipped with screw conveyors and grid slag presses. The drum type grid cleaning machine integrates cleaning, conveying, and pressing, improving energy efficiency and reducing management investment.
Due to the fixed clearance between the mesh and the drum, the drum type grille cleaner thoroughly cleans the dirt, overcoming the defects of ordinary rake tooth grille clearance movement, and achieving a cleaning efficiency of over 98%.
The two ends of the mesh cylinder are welded and fixed with precision cut thickened stainless steel rings with high concentricity, ensuring the concentricity of the mesh cylinder during rotation.
The spiral rotation power of the conveying and pressing device comes from the same reducer that rotates with the mesh cylinder. The conveying and pressing screw is a shaft spiral, and the spiral blades are made of stainless steel. The pitch gradually decreases from bottom to top, and the pressing ability gradually increases.
Model & Specifications
| Model | LDZG-600 | LDZG-1000 | LDZG-1400 | LDZG-1800 | LDZG-2000 | ||
| Drum Diameter(mm) | 600 | 1000 | 1400 | 1800 | 2000 | ||
| Standard grid length(mm) | 650 | 1000 | 1400 | 1650 | 1850 | ||
| Outer diameter of conveying pipe(mm) | 159 | 219 | 273 | 325 | 325 | ||
| Maximum water level in front of the gateH3(mm) | 400 | 670 | 950 | 1250 | 1350 | ||
| Installation angle(°) | 35 | ||||||
| Normal channel depth H2(mm) | 600-800 | 900-1200 | 1200-1600 | 1600-2000 | 1800-2100 | ||
| Normal channel depth H1(mm) | 1000 | ||||||
| Minimum installation lengthA | 3000 | 3600 | 4300 | 5000 | 5300 | ||
| Estimated maximum water flow rate m3/h | Grid gap(mm) | 0.5 | 80 | 235 | 450 | 745 | 920 |
| 1 | 125 | 370 | 720 | 1205 | 1495 | ||
| 2 | 190 | 555 | 1095 | 1830 | 2260 | ||
| 3 | 230 | 680 | 1340 | 2235 | 2755 | ||
| 4 | 235 | 720 | 1440 | 2700 | 3340 | ||
| 5 | 250 | 795 | 1575 | 2935 | 3600 | ||
