What is shallow sand filter?

The Shallow Sand Filter is a highly efficient and versatile water treatment solution. It is comprised of one or more standard high-speed sand cylinder units, each featuring unique internal water distribution and water collectors. A distinguishing feature of this system is the inclusion of an automatic flushing valve. This allows individual backwashing of multiple standard high-speed sand cylinders, even during regular system operation, with fully automatic program control.

One of the key benefits of the Shallow Sand Filter is its low backwashing water consumption. This not only makes it an environmentally friendly choice but also contributes to significant water savings over time. Moreover, the design of the system is such that it's easy to install and operate, making it a user-friendly option for various needs.

The equipment boasts a large flow rate, making it capable of handling significant volumes of water without the need for constant maintenance. This reduces the time and effort required for upkeep, contributing to its overall cost-effectiveness.

To cater to diverse user requirements, the Shallow Sand Filter is available in two series - vertical and horizontal. This makes it a versatile solution that can be tailored to meet the specific water treatment needs of various fields. Whether you're seeking a solution for a small-scale operation or a large industrial plant, the Shallow Sand Filter can cater to your needs effectively and efficiently.

In summary, the Shallow Sand Filter combines efficiency, ease of operation, and versatility in a single solution, making it an excellent choice for meeting a range of water treatment needs. Its unique design and features ensure optimal performance, while its low maintenance requirements make it a cost-effective option for long-term use.

The product features of shallow sand filter:

Product Features: Detailed Overview

The various features of our filter units make them adaptable and versatile, catering to a wide range of needs. Here's a detailed breakdown of what you can expect:

Variety and Versatility: Our filter units come in sizes ranging from 24" (500mm) to 96" (2400mm), offering a solution for every need. They can be used as stand-alone filtration systems or as by-pass filters equipped with their own pumps. The filter units can also be installed in multiple treatment units on common pipework for unlimited filtration capacity.

Flexible Backwashing: The backwashing of the system can be conducted manually, semi-automatically, or fully automatically. Activation can be done through a manual button, PLC, pressure differential, or management system. The backwash cycle and time are adjustable and set at 3 minutes by default, controlled by the PLC automatic filter control system.

High Performance: The filter units offer high filtration speed and low pressure loss, addressing the issues of slow filtration speed and small flow rate often experienced with common mechanical media filters.

Space and Cost Efficient: The modular setting of the filter units requires a small footprint and less piping, resulting in more than 40% reduction in floor space and over 50% reduction in piping work. This saves on both space and investment costs.

Material Quality: The shell and pipeline are made of carbon steel Q235B, with the option of stainless steel for added durability.

Imported Core Components: We use core components imported from trusted brands like BERMAD, BACCARA, SIEMENS, and MITSUBISHI for reliability and performance.

Single Chamber Design: Each filter unit is designed with a single chamber for superior backwashing effect and lower sand run-off rate.

Durable Water Collectors: Water collectors are available in stainless steel/ABS for enhanced lifespan.

Convenient Maintenance: The outlet pipe is placed at the bottom of the unit, reducing water resistance and making maintenance easier.

In summary, our filter units offer a combination of versatility, high performance, and cost efficiency. With various installation options, flexible backwashing methods, high-quality materials, and convenient maintenance, they are designed to meet your specific requirements effectively and efficiently.

Working Principle: Filtration and Backwashing

The operation of the shallow sand filter can be divided into two primary states - filtration and backwashing.

Filtration Status:

The shallow sand filter system is composed of several filtration units connected side by side. During the filtration process, unfiltered water is evenly distributed via a unique water distributor. The water flows in a laminar manner through the filler layer composed of refined homogeneous quartz sand. As the water passes through this layer, impurities get trapped. Numerous evenly distributed water collectors at the bottom of the filter collect and draw out the filtered water. This level flow filtration allows the filter to function at high flow rates while maintaining an excellent filtration effect.

Backwashing Status:

As the filler layer accumulates impurities, the internal pressure head loss increases. When the inlet and outlet head loss reaches a preset value, the system automatically activates the differential pressure device, transitioning the system into the backwashing state. This process involves changing the direction of the water supply via a hydraulic valve to facilitate the one-by-one backwashing of the units.

During the backwash state, filtration continues in the units not being backwashed. The filtered clean water is partially used to backwash the standard unit sand cylinders, with the rest being supplied to the user. The backwash effluent is discharged through the backwash drain in the hydraulic valve.

The special collector design in the high-efficiency filtration system for high-speed sand cylinders allows the fillers to be scrubbed against each other, maximizing backwashing efficiency and reducing the amount of backwash water required (clean water), while also preventing material run-off. A standard unit of sand cylinder backwashes for 3 minutes. Once backwashing is completed, the internal pressure head loss in the standard unit of the sand cylinder reduces to a reasonable range, the pressure setting device gives a recovery signal, the hydraulic valve returns to the filter state, and the next standard unit of sand cylinder prepares to enter the backwashing state.

The system can also be controlled by time-based backwashing. The default is set to backwash once every four hours, but this can be adjusted according to the working conditions on site. This dual system control does not have a primary or secondary distinction - whichever comes first will take precedence.

Product Advantages: Detailing Superiority

Our product stands out from the rest due to its various impressive features that ensure optimal performance, longevity, and ease of use. Here are the key advantages:

Imported Core Components: The core components of our filter are imported from reputable brands such as BERMAD, BACCARA, SIEMENS, and MITSUBISHI. This commitment to quality ensures that our product delivers reliable performance and durability.

Single Chamber Design: The filter unit is designed with a single chamber, which facilitates better backwashing and reduces grit run-off rates. This design enhances the efficiency of the filtration process and extends the lifespan of the unit.

Reliability: Our product is built to last. It's designed to withstand heavy use and deliver consistent performance over time, making it a reliable choice for your filtration needs.

Durable Water Collector: The water collector is available in durable materials like stainless steel or ABS, ensuring a longer life. This durability translates into cost savings as it reduces the need for frequent replacements.

Convenient Outlet Pipe Design: The outlet pipe is strategically placed at the bottom of the unit. This design reduces water resistance and makes maintenance more convenient. It allows for easier access, which simplifies the process of cleaning or replacing the pipe when necessary.

In summary, our product offers a host of advantages, including high-quality components, a single chamber design for improved backwashing, reliability, a durable water collector, and a conveniently positioned outlet pipe. These features ensure that our product not only meets but exceeds your filtration needs.

The Shallow Sand Filter holds immense value in the industrial field, owing to its various features and capabilities. Here are some of the key ways it adds value:

Effective Filtration: The Shallow Sand Filter offers effective and efficient filtration, removing impurities and ensuring that water used in industrial processes is clean and safe. This can be critical in industries where water quality can affect the outcome of the manufacturing process.

High Filtration Speed: The filter operates at a high filtration speed, making it suitable for industries that require large volumes of filtered water in a short amount of time.

Low Maintenance: The Shallow Sand Filter requires minimal maintenance, saving industries both time and money. Its durable components and robust design ensure a long operational life.

Space Efficiency: The modular design of the filter units requires less space compared to traditional filtration systems. This can be a significant advantage in industrial settings where space can be a premium.

Versatility: The filter units can be installed in various configurations to meet specific industrial needs. They can be used as stand-alone systems or integrated into existing processes.

Water Conservation: The backwashing process of the Shallow Sand Filter is designed to use less water, making it an environmentally friendly choice. This feature aligns with the growing industrial focus on sustainable practices.

Cost-Effective: The Shallow Sand Filter is a cost-effective solution due to its high efficiency, low maintenance needs, and durability. It can lead to significant savings in the long run.

Adaptability: The filter can handle different water qualities, making it adaptable to various industrial applications.

In conclusion, the Shallow Sand Filter brings immense value to the industrial field, offering an effective, efficient, and sustainable solution for water filtration needs. It contributes to enhancing operational efficiency, sustainability, and cost-effectiveness in industrial settings.