Automatic Backwash Multimedia Filter Water Pre-Treatment

• Customization: Available
• Type: Niphos Water Filter
• Usage: Environmental Protection, Water Treatment
• Model NO.: YLD-MF-2800
• Motive Force: Pressure
• Style: Vertical
• Performance: Efficient Filtration
• Certification: CE
• Product Name: Multimedia Filter
• Flow Rate: 60 T/Hr
• Inlet and Outlet Diameter: Dn125mm/5 Inch
• Tank Size: 2800*3530mm
• Quartz Sand: Buyer Provided
• Power Supply: 380V/220V/110V 50Hz/60Hz
• Control Mode: Automatic
• Working Pressure: 0.6MPa/1MPa
• Working Temperature: 5--40c
• Working Flow Speed: 8-15 M/Hour
• Transport Package: Plywood Case Into Container
• Specification: CE, SGS
• Trademark: YLD
• Origin: Jiangyin, Jiangsu
• HS Code: 8421219990
• Production Capacity: 5000 Sets/Year

Product Description

Automatic Backwash Multimedia Filter water pre-treatment





Multi-Media Filters


Multimedia filter also called as mechanical filter, is composed of deep-bed system with multi layers of media in the tank. The major media to be applied in the system are sand and anthracite. The lightest and coarsest material is located at the top layer of bed for the removal of the larger suspended particles, while the heaviest and finest one is located at the bottom layer of bed to remove smaller one present in the source water. 

The sand usually acts as a form of chemical treatment that, when in contact with soluble iron in water, reduced the iron from the soluble form to an insoluble form that will precipitate out of solution. The anthracite then can filter both the precipitated iron out of the solution as well as other entrained particles that have entered the water source. The combination of anthracite and sand together can remove a majority of suspended particles greater than 10 microns in size. After treatment, the SDI (Silt Density Index) is reduced and the turbidity reaches less than 3 from 20.

The systems require backwashing to remove the accumulated contamination of suspended particles and rinsed by downflow clean filtered water before use in order to extend bed life.

Multimedia Filtration is widely used in the water pre-treatment, which available with Automatic and/or manual operational features. The tank material includes fibreglass reinforced plastic and stainless steel.
 

Working principle:


For the by-pass filtration, the filter is installed in the main circulating pipeline to filter all the circulating water,
 but apart of the circulating water led from the main circulating pipeline is filtered, which is a repeated 
circulatininterception step by step to filter the impurities within the system and finally remove the impurities
 by thenecessary backwash out of the system. Installing a by-pass filter in the circulating water system can 
prevent the terminal pipe of device from sludge blocking and remove the impurities in the system with 
chemical dosing.
By-pass filtration is used to reduce the turbidity of the water circulation system, exactly, to reduce slime 
and 
prevent its deposition in the heat exchanger, so that the effect of agent will be better.
 
 
Generally speaking, if your filter is a quartz sand filter, it usually has two main functions:
1. To reduce suspended solids (turbidity). Otherwise, as the system is running, suspended solids increases
, which will exacerbate the deposition and other problems.
2. Degreasing. Especially the oily turbid circulation, such as steel rolling and continuous casting, has high 
oil content and is easy for breeding microorganism and blocking the nozzles.





Parameters 
Pressure rating: 0.25Mpa~2.5Mpa
Single filter flow :2-50 m3/hour 
Working temperature range: 0 ~ 65 °C
Effluent turbidity:less-than 3
Inlet and outlet Connection: flange
Backwash water: for total filtered water 1 to 3%
Control mode: pressure control; PLC timing control
Sewage way: automatic
Rated operation voltage: can be customized

Specifications:

Model	TANK SIZE (mm)	TOTAL HIGH (mm)	FLOW RATE (m3/hr)	INLET AND OUTLET (mm)
YLD-MF-500	500*1500	2350	~2	DN32
YLD-MF-600	600*1500	2380	2-3	DN32
YLD-MF-700	700*1500	2400	~4	DN40
YLD-MF-800	800*1500	2400	~5	DN40
YLD-MF-900	900*1500	2500	~6	DN50
YLD-MF-1000	1000*1500	2600	~8	DN50
YLD-MF-1200	1200*1500	2700	~11	DN65
YLD-MF-1400	1400*1500	2800	~15	DN65
YLD-MF-1500	1500*1500	2850	~18	DN65
YLD-MF-1600	1600*1500	2900	~20	DN80
YLD-MF-1800	1800*1500 1800*1800	3000	~25	DN80
YLD-MF-2000	2000*1500	3100	~30	DN100
YLD-MF-2200	2200*1500	3180	~38	DN100
YLD-MF-2400	2400*1500	3330	~45	DN100
YLD-MF-2500	2500*1500	3380	~50	DN100
YLD-MF-2600	2600*1500	3430	~55	DN125
YLD-MF-2800	2800*1500	3530	~60	DN125
YLD-MF-3000	3000*1500	3630	70-80	DN125
YLD-MF-3200	3200*1500	3730	80~100	DN150