Wedge wire filter / metal wound filter is widely used in oil, gas, well sand control and applications in chemical industry, environmental protection and other industries are especially important. It is the most widely used filter screen tube used in various oil and water resource recycling and collection resin filter media links.
The precision filter is an indispensable device on the conveying medium pipeline. The filter adopts a high-strength wedge-shaped filter, and the filter element is automatically cleaned by pressure difference control and timing control.
When the impurities in the filter accumulate on the surface of the filter element, the pressure difference between the inlet and outlet increases to the set value, or when the timer reaches the preset time, the electric control box sends a signal to drive the backwashing mechanism.
When the mouth of the backwash suction cup is directly opposite to the inlet of the filter element, the drain valve is opened, and the system is depressurized and drained, and a negative pressure area with a relative pressure lower than the water pressure outside the filter element appears on the inside of the suction cup and the filter element, forcing part of the net circulating water to flow from the outside of the filter element.
Flow into the inner side of the filter element, and the impurity particles adsorbed on the inner wall of the filter element flow into the pan along with the water and are discharged from the drain valve. The specially designed filter screen produces a jet effect inside the filter element, and any impurities will be washed away from the smooth inner wall.
When the pressure difference between the inlet and outlet of the filter returns to normal or the timer set time expires, the material flows continuously during the whole process, and the backwashing water consumption is small, realizing continuous and automatic production.
The wedge wire filter adopts the world's most advanced full-wound welding production process, and is made of special stainless steel trapezoidal (wedge) wire windings welded on a group of longitudinal support rods arranged in a circle, thus ensuring its strength and service life. .
The wedge-shaped filter has accurate gap size and high filtration precision; it has a solid structure, high temperature resistance, corrosion resistance and good mechanical properties, and can be used for filtration of various media.
Due to the use of full-process welding, it not only ensures the strict continuous integrity of the product, but also enables it to form an ideal gap size. Compared with the welding process commonly used in China, the all-welded wedge-shaped wire-wound screen tube, water filter tube, water cap, water distributor, resin catcher and screen plate have smooth tube surface, no production edges and corners, and no burrs. , The gap is uniform and does not leak grease.
The recycling of water has a positive impact on the environment and also saves companies a lot of money. Water circulation screens (wedge wire filters) are a cost-effective self-cleaning solution to water circulation problems. Whether you want to reuse wastewater to reduce costs or reduce your environmental impact, wedge wire filters can meet your needs.
Wedge Line Filter Features:
1. High mechanical strength, able to withstand large pressure difference
2. The filtration gap is uniform, which can form a relatively uniform filter cake, which is conducive to backwashing and regeneration
3. The wedge-shaped filter gap can improve the backwash regeneration capacity
4. Pressure resistance, temperature resistance, aging resistance, corrosion resistance, and can be adapted to various fluids
5. The metal wedge-shaped mesh filter element adopts metal wedge-shaped wire mesh (Johnson tube) as the filter element, which has high mechanical strength, high pressure difference resistance, easy backwash regeneration, etc.
Benefits of using a wedge line filter:
Durable even with small holes, from 0.1mm to higher, self-cleaning, cost-effective
Industries that use wedge wire filters include:
Industrial toilets and factories
Facilities that have access to sewer must comply with waste regulations or may require reduced sewer bills. The wedge-shaped screen effectively removes moisture from solids and is extremely durable and removes the finest particles. Since the screen is non-mechanical, downtime is greatly reduced, making wedge wire filters the most cost-effective option.
Rainwater collecting
Rainwater harvesting is becoming more and more popular. It is collected, filtered, pumped and stored in tanks, and the water is reused for washing, cleaning, irrigation and other livestock needs. Rainwater harvesting can save customers a lot of water bills and improve the environment. Wedge wire filters are used as filters in the initially collected rainwater, they are durable in all weather conditions and can filter fine debris.
Road and footpath sweepers
Road sweepers are designed to lift everything from the road, stones, paper, trash, etc. Older filter systems used braided wire or perforated plates, which were flawed because it would continually clog, rendering the screen ineffective. Now, thanks to the self-cleaning properties of the wedge-line filter, it allows the sweeper to recycle dirty water so that clean water can be reused without filling the tank with clean water.
