Long-Term Stable Operation Quartz Sand Filter

The Long-Term Stable Operation Quartz Sand Filter is a common water treatment equipment, mainly used to remove suspended impurities, colloidal substances and microorganisms and other pollutants in water. It works by using quartz sand as the filter medium. When the water flows through the quartz sand layer, the impurities are trapped in the sand layer, and the purified water is discharged from the water outlet.

 

Structure and principle

The long-term stable operation quartz sand filter is mainly composed of the following components:

1. Filter Tank. Usually made of stainless steel or carbon steel, with a quartz sand layer inside.

2. Quartz sand layer. Consists of quartz sand with a specific particle size range, usually 0.4-1 mm.

3. Water Distribution System. Located on the top of the filter tank, it distributes water evenly over the quartz sand layer.

4. Drainage system. Located at the bottom of the filter tank, it is used to collect and drain trapped impurities.

5. Backwashing system. Backwashing uses countercurrent water to clean the quartz sand layer to remove trapped impurities.

 

When the water flows through the quartz sand layer, the impurities are trapped in the sand layer, and the larger particles are mechanically filtered, while the smaller particles are adsorbed on the surface of the sand. With the extension of the filtration time, the quartz sand layer will gradually clog, resulting in a decrease in filtration efficiency. At this time, backwashing is required. During backwashing, the water flow flows upstream from the bottom to rinse the trapped impurities out of the sand layer and restore the filtration efficiency.

 

Technical data

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

 

Features

The long-term stable operation quartz sand filter has the following features:

1. High filtration efficiency. It can effectively remove suspended impurities, colloidal substances and microorganisms in water.

2. Low operating costs. Quartz sand is an inexpensive and easily accessible material that is less expensive to replace.

3. Long service life. Quartz sand is chemically stable, corrosion-resistant, and can last for more than 10 years.

4. Easy to operate and maintain. Backwashing is easy to operate and easy to maintain.

 

Application

The long-term stable operation quartz sand filter is widely used in the following fields:

1. Drinking water treatment

Removal of suspended impurities, colloidal substances and pathogenic microorganisms in water.

2. Industrial water treatment

Removes impurities from cooling water, boiler water, and process water.

3. Swimming pool water treatment

Removes suspended solids and microorganisms from swimming pool water.

4. Wastewater treatment

As an integral part of wastewater pretreatment or advanced treatment.

 

Maintenance and management

The maintenance and management of quartz sand filters is essential to ensure the filtration effect and prolong the service life of the equipment. Mainly include the following aspects:

1. Regular inspection

Regularly check the quartz sand filter to detect any problems and deal with them promptly to ensure the normal operation of the equipment.

2. Backwashing operation

According to the filtration effect and equipment operation, backwashing operation is carried out regularly to clean the quartz sand filter material to maintain the filtration effect.

3. Replace the filter media

When the filtration effect of the quartz sand filter media decreases significantly, it should be replaced in time to ensure the filtration water quality.

4. Maintenance of the automatic control system

For quartz sand filters equipped with an automatic control system, check the working status of the control system regularly to ensure its normal operation.

 

Selection

The choice of quartz sand filter should be based on the following factors:

1. Water quality: The type and concentration of impurities to be removed.

2. Flow rate: The amount of water to be treated.

3. Filtration efficiency: Required effluent quality standards.

4. Backwashing frequency: Depends on water quality and flow rate.

5. Materials: Filter tanks and water distribution systems should be corrosion-resistant and pressure-resistant.

 

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