A rake bar screen is a mechanical filter used to remove large objects, such as rags and plastics, from wastewater. It is part of the primary filtration flow and typically is the first, or preliminary, level of filtration, being installed at the influent to a wastewater treatment plant. They typically consist of a series of vertical steel bars spaced between 1 and 3 inches apart.
Structure and working principle of rake bar screen
Automatic rake bar screen machine mainly consists of frame, bar screen, rack cleaner board, hoisting chain, motor reduce driving device, cushion self-cleaning pollution discharge device etc. During working time the rack cleaner board that fixed in the hoisting chain driven by the driving device, remove the sundries intercepted by the underwater grill, the rack cleaner rely on the two-side hoisting chain synchronous turing clockwise operation from back to forward. When the board up to the top of the frame, as the effect of turning guide and guide wheel, part of dirt fall on gravity, the surplus part cleave on the board through cushion self-cleaning device to scrape.
The driving device of this machine was set shear type safety pin, when overload or occur accident, the shear pin will cut off instantly to protect the equipment avoid damage. Underwater chain wheel and chain with blocking proof protection device, reliable operation, cushion self-cleaning pollution discharge, slag discharge completely.
Before the sewage treatment working procedure, the interception, remove all kinds of solid particles, airborne. Make the follow-up processing process smoothly. Municipal sewage, industrial wastewater is such as textile, paper and other process of block the dirt and dregs the key equipment.
1. Sieve screen is offered with apertures from 0.5 mm ,1mm, 1.5mm to 3 mm;
2. Passive filtration method maximizes solids removal;
3. No moving parts, easy to set up with small installation area;
4. Self-cleaning, easy to maintain, and the running cost is zero;
5. No actuating equipment, neither vibration nor noise is produced;
6. Simple structure, operation simplicity, sturdiness;
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3. Our well-trained professional engineers and staff can provide our clients with unique and unique solutions.
4. We will choose the most cost-effective logistics and transportation for customers according to the quantity purchased.
5. We will send you free spare parts if the product problem is caused by us.
6. If it is man-made problem, we also send spare parts, but it will be charged. Any questions, You can call us directly.