
Screen type ladder grille decontamination machine/WJG plate-type Step Grille
Application
■ As it has good adaptability to and removal effect of fine particles and fiber waste contained in sewage, it is widely applied in the upgrading reconstruction, reinforced pre-treatment technological processes of sewage treatment plants.
Advantages
■ Adopt step-type punching plate design, have large filtering area, easily retain contaminants, and have high filter efficiency;
■ Be especially strongly adaptable to fiber wastes;
■ Adopt the box-plate-type structure, have firm structure and high symmetry, operate stably and be easy to install;
■ In the structure design, fully consider about the sewage environment and heavy-duty drag chain as the driving body of the filter plate;
■ Have no underground bearing structure, greatly reduce the underground failure probability, and operate more reliably;
■ Adopt high-efficiency brush and back-wash devices to unload contaminants and ensure the effective regeneration of filtering surface;
■ Adopt the front and back closed construction on the top, directly connect with the grille slag conveyor, and improve the working environment;
■ The equipment can be under full-automatic operation control according to the water level difference or at regular time to reach the best energy-saving effect;
Grille Breadth B (mm) | 600~3000 | |
Suggested Grille Breadth B1 (mm) | B+100 | |
Effective Filtering Surface Breadth (Plate Breadth) B2 (mm) | B-150 | |
Suggested Grille Well Height H (m) | 1.5~10 | |
Installation Angle (°) | 60~75 | |
Common Aperture Diameter (mm) | 3,5,6,8,10 | |
Plate Operation Velocity (m/min) | ~3.8 | |
Main Driver Power (kW) | 0.75~3.0 | |
Cleaning Brush Power (kW) | 0.37~0.75 | |
Washing Water Pressure (MPa) | ≥0.3 | |
The Designed Maximum Water Level Difference (m) | 1.0 | |
Unit Discharge Capacity (Reference) | Aperture: ≤3 | 700 |
(m3/m2.h)* (Water Velocity) | Aperture: 4~6 | 900 |
0.8m/s, Effective Water Depth 1m) | Aperture: 7~10 | 1200 |
The technological calculation process is as follows:
■ Discharge capacity (m3/h) = Unit discharge capacity (m3/m2. h) × Effective discharge area (m2)
■ Effective discharge area (m2) = Effective water depth (m) × Effective filtering surface breadth (m)
■ Effective water depth (m) (the design well water velocity is 0.8m/s) = Grille water depth (m) – Water head loss (m)
■ The reference values of water head losses are shown in the table below:
Water Head Loss of Grilles with Different Apertures | Aperture: ≤3mm | 0.6 |
Loss Reference Value (m) | Aperture: 4~6mm | 0.5 |
(Water Velocity 0.8m/s) | Aperture: 7~10mm | 0.4 |
WUXI CHENENG ENVIRONMENTAL ENGINEERING & EQUIPMENT CO.,LTD
WUXI CHENENG ENVIRONMENTAL ENGINEERING EQUIPMENT CO.,LTD is a supplier of equipment and solutions for potable water, process water, and industrial and municipal wastewater applications. We design, fabricate and assemble the products, and sell into the municipal wastewater and industrial wastewater treatment market.
Cheneng Environment also strives to insure it delivers the highest
quality products and customer service possible. The company
is ISO 9001:2008 certified.
The company refined its mission and values and has an ambitious
strategic planning process to grow and drive profitability. Cheneng
Environment is branded around the core business of “Treating Water
Better,” which defines its future business ambitions focused around
the core water market.
While engaging in independent R&D, design of environment-friendly process engineering and environment-protection machinery, the company keeps a long-stable partnership in scientific research and development of products with the Environmental Engineering Research Institute of East China University of Science and Technology, fully absorbs the advances technologies of home and abroad and consolidates its leading position of technical practice. Products of the company have been exported to such countries as the United States, the United Kingdom, Russia, Australia, Singapore, the Czech Republic, Kazakhstan, India, Myanmar, Angola and Cabinda, etc.
The company edheres to the service tenet of Quality First and User Foremost and joins hands with the mass new and old customers into friendly cooperation for common prosperity and takes relentless efforts in protection of our green world
The excellent quality and thoughtful service win high reputation for Cheneng in both domestic and abroad market.
1. Excellent product quality;
2. Competitive direct factory price;
3. On time delivery;
4. Strong R&D capacity and technical support;
5. Professional pre-sales and after-sales service.
We are waiting here to cooperate with your esteemed company for a better future and a greener tomorrow !!!
Welcome to visit our company if you have time!