Back flush filter
A list,
Automatic backwash filters to overcome the traditional filtering products, volume is small, vulnerable to contamination jams, filtering, part of the need to remove the cleaning and unable to monitor the state of the filter and so on shortcomings, with the raw water filter and automatic filter for the discharge of pollutants by automatic cleaning function, and uninterrupted water washing sewage system, can monitor the working state of the filter, a high degree of automation. Covered by 10 um to 3000 um various filtration precision demand, providing customers with a variety of water filtration equipment.
Back flush filter can be vertical, horizontal, the horse any direction at any position, can be used in industry, agriculture, municipal electric power, electronics, medicine, food, printing and dyeing, construction, steel, metallurgy, paper and other water filtration in all walks of life.
Automatic backwash filters can be used to industrial water, water, food and pharmaceutical and other light chemical industrial wastewater and circulating water filtration, and regeneration, waste oil, emulsion liquid raw materials such as filter processing, etc. In metallurgical industry and petrochemical industry and power plant, water supply and drainage and circulating water system and involves the liquid medium filtering, automatic backwash filter is widely used, our modern metallurgy enterprises introduced continuous casting water system, water system, hot blast furnace with high pressure water descaling system, emulsion system and closed water circulation system, the liquid medium filtering system are widely adopted, automatic backwash filters.
Second, the technical parameters
Flow range: 4 ~ after 20000 m/h
Filtration precision: 100 ~ 100 microns (5 microns can be reached, with woven network ah)
Pressure of work: 0.1 ~ 1.0 Mpa (1.6 or 2.5 Mpa to also go, oh)
Loss of pressure: 0.016 Mpa or less (can be designed for automatic backwash when I was 2 kg pressure difference!)
Drain valve diameter: DN 50 mm
Drainage time: 10 to 60 seconds (timing backwash can design or differential pressure reverse wash)
Applicable temperature: 95 ° C (120 ° C) or less
Power supply: ac three-phase 380 v / 50 hz (can use pneumatic back flush)
Control interface: digital display, knob, switch
Three, characteristics
Electric drive, stainless steel brush cleaning, system pressure ability; High precision differential pressure control design, time control, manual control cleaning;
Steel brush to remove, easy installation, maintenance, easy to operate;
Adjacent two cleaning, motor and reversing operation alternately, turns a stainless steel brush longer life;
With the motor overload protection, which can effectively protect the motor.
Control display interface humanization design, the operation is very simple;
Outside surface is exposed wiring, safe and reliable.
Control interface: digital display, knob, switch
Mesh type: metal wedge net
Electric drive, stainless steel brush cleaning sewage;
Control mode: the differential pressure, time, manual control design;
Control mode: time, manual control design;
Special filtration unit structure design, strong and durable;
Unique cleaning uniform design and realization of low load, low head, discharge;
Direction of the electric control panel can meet user requirements adjust at will;
Four,
Automatic backwash filter can make industrial wastewater to the wastewater discharge standards prescribed by the state, can effectively protect the environment, and at the same time after wastewater treatment can reach reuse can be standard, so can not only solves the problem of sewage discharge, also can realize recycle to save the cost, automatic backwash filter is a use of screen directly to intercept the impurities in the water, purify water, suspended solids, particulate matter, reduce the turbidity, purify water quality, reduce system dirt, bacteria and algae, corrosion, etc, to improve water quality and protect other equipment equipment to work normally.
Five, the working principle
By the entrance into the water, first through the coarse mesh filter out larger impurity particles, and then reach the fine mesh. In the process of filtration, fine mesh gradually accumulated dirt and impurities in the water, the formation of filtering impurities layer, due to impurity layer in the inside of the fine mesh, inside and outside of the fine mesh is forming a differential pressure on both sides.
When filter differential pressure reaches the preset value, will start the automatic cleaning process, the water here, the supply does not block the purge valve is opened, clean room and pollution in the water pressure drop dramatically, through a filter cylinder and the pressure difference between the suction sewage pipe, pollution between the tube and cleaning room through the suction nozzle have a suction, forming a pollution process. At the same time, the electric motor drive the pollution tube along the axial helical motion. Pollution is the combination of axial movement and rotation motion completely clean the whole surface of a mesh inside. The whole processing only tens of seconds. Drain valve closed at the end of the cleaning. Filter washing cycle began to prepare for the next.
Six, cleaning, etc
A. automatic recoil sewage filter cartridge [2] using multiple, effective filter has big filter area, small pressure loss. Design filter area as the import and export area of 3 ~ 5 times.
B. automatic recoil sewage filter maintenance, maintenance convenient: set up the access manhole, loading and unloading cartridge is convenient, back flush filter
C. automatic recoil sewage filter cartridge adopts multiple filter, the structure of the cleaning cartridge individually, uninterrupted water supply during cleaning.
D. automatic recoil sewage filter program control: can according to customer's actual situation need to set the parameters of the system.
E. backwash filter advanced control system: the control system of high precision, and can be adjusted according to different water quality of the working mode and running state, in order to improve the ability to adapt to the water quality.
F. filter backwash convenient control mode: differential pressure/time control or control at the same time, can choose according to actual working condition and demand, automatic running; Set a manual/automatic switch at the same time, the control mode can be set in advance, and can realize electric interlock,
G. backwash filter with local control, a remote control switch, and when necessary in order to realize the on-site operation and remote control operation.
H. backwash filters with output running state and fault alarm output function, ensuring safe and reliable conditions of the equipment used in automatic recoil sewage filter functions [3]
Back flush filter ability strong, big flow: coal mine on the extensive use of big flow "straight through" filter, as a result of the limitation of the structure, the maximum flow can reach 380 l/min, the filter can reach 800 l/min or more. Fully automatic filter, filter, the whole integrated water processor, high precision electronic cleaner backwash filter: back flush filter with two or more group filter, big flow area, the original small pressure loss, which can realize large flow, high precision filter (25 m and 40 m), the traditional filter is difficult to achieve. Quantitative pollution levels back flush filter: the filter in the liquid flows into the end Pi mouth, outflow end Po mouth can be equipped with a pressure gauge K1, K2, P = K1, K2 pressure difference size, quantitative reaction degree of filter contaminated, facilitate cleaning at any time, the traditional filter function, no time.
Seven, scope of application
Steel: used for raw materials, sintering pellet plant water treatment filter, blast furnace, rolling mill, continuous casting machine, such as system cooling water filter, high pressure water phosphorus impurities filtration system
Car: coating production line, in the car, tractor, motorcycle and engine manufacturing, water treatment system has a wide range of applications
Power plants: used in the precision of the power plant boiler high pure water preparation preprocessing part, the generator cooling water, seal water filtration, 13-4 of heavy water when can be used as a filter processing, the whole filter processing beside.
Petrochemical industry: beside the circulation water yards do filter processing, can be single or multiple models the main processing in parallel, to replace the filter material to filter, reduce the filter material to filter load, can avoid a lot of rinse water consumption, cost savings
Agricultural landscape and paper mills: in a nozzle, the nozzle system, should be reduced due to the impurities caused by equipment jams, wear, so you need to choose high precision, high automatic filtering products machinery, food or other: the system automatically, precision filter, used to prevent the cooling water system jam
Mine: filtering underground water spray, to guarantee the system working properly.
Water supply and wastewater treatment: used for pretreatment system, improving the efficiency of the system
Widely used in water treatment, water treatment, industrial circulating water treatment, sewage treatment, mining, golf courses, water treatment, water treatment, construction, steel, petroleum, chemical, electronics, electricity, textile, papermaking, food, sugar, pharmaceutical, plastics, automotive industry and other fields.