High Strength Housing Sand Filter

The high strength housing sand filter mainly uses granular filter materials such as quartz sand to remove impurities such as suspended solids and particulate matter in the water by physical interception. When the water flows through the sand layer, the impurities are blocked and adsorbed by the sand particles, so that the water can be purified. The principle is based on the sieving and adsorption of the filter medium, which can effectively remove impurities with large particle sizes in the water and provide a good water quality foundation for the subsequent water treatment process.

 

Structure of the high strength housing sand filter

1. Tank

The tank body of the sand filter is usually made of carbon steel, stainless steel, etc., and has sufficient strength and corrosion resistance to accommodate the filter material and withstand water pressure.

2. Filter media

It is mainly quartz sand. According to different filtration requirements, quartz sand with different particle sizes and gradation can be selected. The filter material forms a certain thickness of the filter layer in the tank.

3. Water inlet and outlet

The water inlet is used to introduce the water to be treated, and the water outlet is used to send the filtered water out.

4. Backwash system

Including backwash pipes, valves, etc., used to regularly backwash the filter material to restore the filtration performance of the filter material.

 

Working process

1. The filtration process

The water to be treated enters the sand filter from the water inlet, and after being filtered by the sand layer, the clean water flows out from the water outlet. As the filtration progresses, impurities will gradually accumulate in the sand layer, resulting in an increase in filtration resistance.

2. Backwashing process

When the filtration resistance reaches a certain value, backwashing is required. During backwashing, the direction of water flow is opposite to that of filtration, and the impurities in the sand layer are rinsed out through a strong water flow and discharged from the sewage outlet. After backwashing, the sand filter resumes its normal filtration function.

 

Advantages

1. The filtration effect is stable

It can continuously and effectively remove impurities from water to ensure the stability of the effluent quality.

2. Strong adaptability

It can be applied to the treatment of different water quality and quantity, and has a wide range of applications.

3. Lower cost

Compared to some other water treatment equipment, the construction and operation costs of sand filters are relatively low.

4. Simple operation and maintenance

The equipment is simple in structure, easy to operate and maintain, and does not require complex technical and professional knowledge.

 

Parameters

Working pressure	0.05 ~ 1.0 MPa
Working temperature	0 ~ 40°C
Flow	0.5 m3/h ~ 140 m3/h
Control mode	Automatic or manual
Dimension	ф173 ~ ф3800
Filtering speed	8 ~ 20 m/h
Material	Q235 rubber / phenolic epoxy resin / 304, 316L
Backwash strength	12 ~ 15 L/s. m2
Filtering layer resistance	>0.05 MPa
Backwash duration	4 ~ 10 min
Final turbidity	≤3

 

Application

1. Industrial water treatment

For example, pretreatment in electronics, chemical, power and other industries removes suspended matter and particulate matter from water to ensure the normal progress of subsequent production processes.

2. Drinking water treatment

Provide residents with clean and safe drinking water.

3. Sewage treatment

In wastewater treatment plants, it is used to remove solid impurities from wastewater and improve wastewater treatment efficiency.

4. Swimming pool water treatment

Keep swimming pool water clean and hygienic.

 

Precautions for the operation of sand filters

1. Selection and filling of filter media

It is necessary to choose the appropriate filter material according to the water quality and treatment requirements, and ensure that the filter material is evenly packed and dense.

2. Control of backwashing

Reasonably control the intensity and time of backwashing to ensure that the impurities are cleaned and to avoid damage to the filter material caused by excessive washing.

3. Regular maintenance

It includes checking the integrity of tanks, pipes, valves, and other equipment, and replacing damaged parts in a timely manner.

4. Inlet water quality monitoring

Pay close attention to changes in the quality of the influent water in order to adjust the operating parameters of the sand filter or take other countermeasures in a timely manner.

 

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