Sewage Treatment Horizontal Self-Cleaning Screen Filter

The sewage treatment horizontal self-cleaning screen filter represents an automated wastewater treatment equipment mainly used to remove suspended matter, particulate matter and certain dissolved matter in water to ensure that the effluent quality meets the relevant discharge standards. This filter can be automatically cleaned while filtering to maintain filtration efficiency.

 

At its core, a sewage treatment horizontal self-cleaning screen filter operates based on a straightforward yet highly effective mechanism. It is designed to remove suspended solids from water by passing it through a fine mesh or screen. Unlike traditional filters that require frequent manual cleaning or backwashing, this system incorporates an automatic cleaning function triggered once the filter cake (accumulated debris) reaches a predetermined level.

 

The process initiates with the inflow of raw sewage into the filter housing, where it passes through the screen. The screen's precise apertures trap solids while allowing clean water to permeate. A pressure differential across the filter media indicates the accumulation of debris, activating the self-cleaning cycle. This cycle involves either a backwash mechanism, which reverses the flow to dislodge trapped particles, or a mechanical scraper that moves along the screen surface, pushing the debris off into a waste collection chamber.

 

Key Components and Features

1. Screen Mesh. Made from durable materials resistant to corrosion and wear, the screen mesh is the heart of the system, filtering out impurities with high precision.

2. Drive Mechanism. An electric or hydraulic motor powers the scraper or backwash mechanism, ensuring consistent and reliable cleaning.

3. Control System. Advanced sensors and controllers monitor filter performance, triggering cleaning cycles at optimal times to maintain efficiency.

4. Waste Collection Chamber. Collected debris is channeled here before being further processed or disposed of, ensuring continuous operation without interruption.

 

Parameters

Single unit flow	50-1200M3/H, larger flow can be realized by multiple single units in parallel
Minimum working pressure	0.2Mpa
Maximum working pressure	1.0/1.6/2.5/4.0Mpa
Maximum operating temperature	80°C
Filtration accuracy	130~3500 microns
Control mode	Differential pressure, timing or manual
Cleaning time	60s
Cleaning mechanism speed	14-20rpm
Cleaning pressure loss	0.01Mpa
Control voltage	AC 220V
Rated operating voltage	Three-phase, AC220V /380V, 50HZ

 

Benefits of Horizontal Self-Cleaning Screen Filters in Sewage Treatment

1. Continuous Operation. By automatically initiating cleaning cycles, the horizontal self-cleaning screen filter minimizes downtime, ensuring a steady flow of treated water.

2. Reduced Maintenance. Manual cleaning is significantly reduced or eliminated, lowering operational costs and enhancing safety.

3. Improved Water Quality. Consistently removing solids results in higher quality effluent, meeting stringent environmental discharge standards.

4. Energy Efficiency. Automated processes consume less energy compared to conventional backwashing or manual cleaning methods.

5. Flexibility and Scalability. The horizontal self-cleaning screen filter can be customized to suit varying flow rates and filtration requirements, making them suitable for a wide range of sewage treatment plants.

 

Applications in Sewage Treatment Plants

1. Primary Treatment. As a preliminary step, the horizontal self-cleaning filters remove large solids, reducing the load on subsequent treatment stages.

2. Secondary Treatment Pre-Filtration. The horizontal self-cleaning screen filter prepares wastewater for more advanced treatments like biological processes by removing finer particles.

3. Tertiary Treatment and Polishing. In final stages, the horizontal self-cleaning screen filter ensures the water is free of suspended solids before discharge or reuse.

4. Recirculation Systems. In plants utilizing recycled water for processes like sludge handling, the horizontal self-cleaning screen filter maintains system efficiency.

 

Maintenance

1. Check the filter regularly. Check the filter for damage, blockage or wear. If the filter is found to be damaged or seriously blocked, it should be replaced or cleaned in time.

2. Clean the filter. According to the frequency of use of the filter and the water quality, clean the filter regularly.

3. Check the cleaning device. Make sure that the cleaning device (such as brushes, nozzles, etc.) is working properly and is not blocked or damaged. Clean the cleaning device regularly to maintain its good working condition.

4. Check the control system. If the self-cleaning filter is equipped with a control system, such as pressure sensors, flow meters, etc., the accuracy and reliability of these devices should be checked regularly.

5. Check the drainage and cleaning drainage. Make sure that the drainage and cleaning drainage systems are unobstructed and free of accumulated dirt or foreign matter.

6. Check the housing and seals. Regularly check the housing and seals of the filter for damage or leakage. If any problems are found, they should be repaired or replaced in time.

 

FAQ

1. Q: What is the function of a filter?

A: The main function of a filter is to remove solid particles, impurities, and harmful substances from liquids or gases, in order to achieve purification, clarification, and protection of equipment.

2. Q: How to choose a suitable filter?

A: When choosing a filter, factors such as the properties of the material being filtered (e.g., viscosity, temperature, corrosion), required filtration accuracy, processing capacity, operating pressure and medium, as well as the type, material, size, and installation method of the filter should be considered.

3. Q: What is the working principle of a filter?

A: The working principle of a filter mainly relies on physical screening, deep interception, absorption, or chemical reactions to remove impurities or harmful components from the material being filtered.

4. Q: How to maintain and care for a filter?

A: Maintenance of filters includes regular cleaning or replacement of filter elements, inspection of seals and fasteners, maintaining stable operating pressure, and avoiding overloading. Specific methods should be referenced from the filter's instruction manual and maintenance guides.

5. Q: What is the service life of a filter?

A: The service life of a filter depends on its working environment, processing volume, and filtration accuracy. Generally, when the filter's pressure drop reaches a certain value or the filtration effect decreases significantly, it needs to be replaced or cleaned.

6. Q: What should be paid attention to during filter installation?

A: During filter installation, attention should be paid to the directionality, ensuring that the fluid enters and exits from the correct ports. Also, the piping system should be cleaned before installation, and the filter should be securely fastened and sealed as required by the instructions.

7. Q: What is the replacement cycle for filters?

A: The replacement cycle for filters depends on their working conditions and filtration requirements, and is usually indicated by pressure difference indicators or timers. When the filter's pressure drop reaches the set value or the filtration effect decreases, it should be replaced in a timely manner.

 

Why Choose Us

· Professional manufacturer with many years' experience

· Good quality with competitive price

· OEM & ODM are welcome

· Various payment items are acceptable

· Good service by experienced manager

 

AIDA Philosophy

1. Management Concept:

· Satisfy the customers' demand --- Touch customers, trust with our products and services

· Make employees happy --- Pursue higher material and spiritual happiness

2. Company Mission:

· Focus on customer needs, provide best filtering solution

· To be the lifelong partner with customers

3. Corporate Vision:

· Become a global purification leadership brand

4. Values:

· Customer: Pursue the ultimate experience, enjoy excellent quality

· Team: Trust, responsibility, growth, win-win

· Work: Simple, sincere, efficient, dedicated