Central air conditioning chilled water/cooling water pre-filtering
Shallow Medium Filter is a kind of high efficiency filter equipment in cutting down water turbidity, and purifying water. It uses silica sand asits filter medium. Under a certain pressure, the muddy water come through the granular or nongranular silica sand, which can efficiently hold back suspended solids, organisms, colloidal solids,micro-lives, chlorine, odour and heavy metal ions, etc.
Filtration process
The contaminated water enters the tank through the inlet manifold, transitioning to the 3-way valve and into the top inlet of each tank.
Particulate is trapped and retained within the media bed resulting in clean process water flowing out through the stainless steel wedge wire underdrain, to the outlet of each filter tank and to the outlet manifold for end use.
Backwash process
Backwash sequence is initiated by either elapsed time of the controller or pressure differential between the inlet and outlet manifolds. One tank at a time is backwashed while continuing to process water for use until the entire system is clean Once completed with the backwash, filtration continues until the next backwash event.
Design temperature: 5 ~ 50C
Single sand filter straight Height: 1500mm
Activated carbon / cationic resin filter Height: 1000mm
Using scope for Sand Filter Machine
1. Chemical: Resin powder, palette, washing powder, paint, soda and citric acid, etc.
2. Abrasive material and ceramic industry: alumina, arnaceous quartz, slurry, and spray soil grain etc.
3. Food industry: Sugar, salt, Alkali, monosodium glutamate, milk powder, soybean milk, yeast, juice, soy sauce, vinegar etc.
4. Paper Making Industries: Coated slurry, exhaust liquid, paper making liquid and waste water reclamation, etc.
5. Metallurgy and mining: Titanium oxide, zinc oxide, electromagnetism materials, metal materials, welding rod materials, etc.
