RU EN DE CN
ProductsGas-cleaning equipmentFIF, CF, FIF-CF Ion-exchange filters

Ion exchange filters FIF, CF, FIF-CF

Ion exchange filters FIF, CF, FIF-CF is modern, high-efficiency gas-cleaning equipment for many purposes.

Air purification technology is based on the use in filters unique ion exchange fibers PANION®.

Air purification occurs due to chemical interaction between toxic pollutants and active groups of ion exchange material.

Our filters efficiently purify the air from pollutants of acid and basic nature:

Substances of acid nature:

  • inorganic acids: HCl (hydrochloric), HF (fluoric), H2SO4 (sulphuric), HNO3 (nitrogen), H3PO4 (phosphoric) and others;
  • oxides of acid nature: SO2 (sulfur dioxide), NO2 (nitrogen dioxide), SO3, CrO3 and others;
  • organic acids: HCOOH (formic), CH3COOH (vinegar) and others;
  • hydrogen cyanide HCN;
  • Cl2 (chlorine), Br2 (bromine);

Substances of basic nature:

  • alkalis: NaOH (sodium hydroxide), KOH (potassium hydroxide) etc.;
  • NH3 (ammonia);
  • amines: (tri-) (di-) (mono-) methylamines, (tri-) (di-) (mono-) ethylamines etc.;

Other chemical substances:

  • H2S (hydrogen sulphide), CH2O (formaldehyde);

Pathogens, bacteria and viruses.

Construction of filters makes it possible to use them in exhaust, supply and recirculating ventilation systems in different branches of industry and agriculture.

Due to low air resistance the filters can be installed not only in designed projects, but also in al-ready existing ventilation systems.

Basic technical specifications

Capacity500 – 100 000 m3/h
Total content of pollutants1- 500 mg/m3
Temperature+1 - +70 °С
Humidity of air flow30-100 %
Content of water-insoluble dust not more, than5 mg/m3

Advantages

The main competing technologies are biofilters and scrubbers. In comparison with them ion exchange filters have a range of undeniable advantages:

  • High rate of purification (90-99%) due to chemical sorption of pollutants with fibrous ion exchanger PANION® by concentration of pollutants until 500 mg/m3;
  • Low operating costs due to:
    • low aerodynamic resistance;
    • low consumption of water and chemicals;
    • minimum electric energy consumption.
  • Automation of filter work;
  • Small dimensions and the weight of the filter;
  • Minimum noise pollution;
  • Easy mounting works.

Application fields

Filters are used in exhaust, input and recycling ventilating systems in various branches of industry and agriculture.

AGRICULTURE

Extremely promising direction. Pig-breeding farms, poultry farms, cattle breeding farms.

MACHINE BUILDING AND METAL WORKING

Electrochemical and galvanic manufactures, shops, bays.

CHEMICAL INDUSTRY

Chemical and chemico-metallurgical enterprises;

Manufacture of rare and noble metals and concentrates;

Manufacture of inorganic compounds (acids, alkalis, ammonia, soda, salts, chemical reactants for laboratories).

FOOD-PROCESSING INDUSTRY

Meat-processing industry. Meet packing houses.

Storehouses with the freezing installations using as a coolant ammonia.

Fish-processing industry.

STORAGE BATTERY SHOPS

Of the enterprises of any profile using electrotransport.

GLASS INDUSTRY

Glass factories. Process of glass polishing.

Arrangement and operating principle

The filter set consists of the filter body and the tank for preparation of solution. The filtering element with fibrous ion exchanger PANION®, is within the body. The filter body is equipped with flanges for input and output of air flow.

The filter body and tank are produced of corrosion-resistant polypropylene armed with steel construction.

Air purification occurs due to sorption of air flow with surface of ion-exchange fiber PANION®. The sorption rate on the fiber PANION® exceeds the sorption rate on ion exchange resins by two orders, which allows increasing sorption surface per unit volume of the filter manyfold, the aerodynamic drag is thereby reduced (Figure 1).

The regeneration of filtering elements is realized with solutions of generally available and cheap reagents, which are prepared and kept in tank. The regeneration solution circulates until saturation of the removing component. After that it as a neutral salt can be returned into production or be reclaimed (Figure 2).

Figure 1. Air purification (front view)
Figure 2. Regeneration of filtering element (side view)

In dependence of purpose of air purification ion exchange filters are divided by means of arrangement and operating principle:

  • FIF – frame ion exchange filter;
  • CF – contact filter;
  • FIF-CF – combined filter.

The filtering element of FIF is a set of frames with fixed ion exchange fabric. Air flow is filtered through the material, the pollutants are chemically bonded with active centers of ion exchanger.

The difference between the frame (FIF) and contact (CF) filters is that in the latter case the absorption of toxic components occurs due to moving of air in plane-parallel channels, created with separating elements, and diffusing of absorbing components to active surface of element.

For purification of complex gas-air mixtures the filter FIF-CF is produced, that is combination of filters FIF and CF in one unit. The gas flow goes at first through the filter CF and then through FIF.

The irrigation time of filtering element by regeneration solution is corrected for each technological process during operation.

Control modes of filters

МThe most effective using of gas-cleaning equipment is achieved by means of timely turning on of necessary working regime (irrigation, washing, dosing etc.). So in dependence of the fact, by whom? where? and how? the filter will be operated, there are 3 types of control mode:

  • manual – operating personnel manually controls filter regimes, prepares the regeneration solution.
  • half-automatic – filter performs a part of operations, however the activity of operating personnel is required.
  • full-automatic – filter controls all regimes.

Each of 3 types of control modes has its advantages and disadvantages. All control modes have a certain basic configuration, which on customer’s request can be added or changed. Details can be read below.

Type of control system Advantages Disadvantages
1. manual 1. low price
  1. the filter requires many service people
  2. permanent presence of personnel
  3. due to lack of manual and automatic control of pH of solution:
    • overconsumption of recourses (reagents, water electricity)
    • the efficiency of air purification can decrease drastically during the work
  4. lack of possibility to control the filter remotely
2. half-automatic
  1. reduction of amount of service personnel due to automatic irrigation
  2. manual control рН:
    • reduction of resources consumption (reagents, water, electricity)
    • if the efficiency of air purification decreases drastically, service personnel will be informed, level of purification efficiency is corrected manually.
  3. there is a possibility for minimal control of the filter remotely using industrial networks RS232, RS485 or electrical networks
  4. there is a possibility to combine work of the filter with other equipment or devices or devices
  1. the filter requires a sufficient amount of service people
  2. manual control рН:
    • periodical presence of personnel for preparation of solution
    • manual correcting of efficiency level
  3. remote control of the filter is minimal.
3. fully-automatic
  1. amount of service personnel is minimal due to automatic preparation of solution and irrigation
  2. automatic control рН:
    • minimal consumption of recourses (reagents, water, electricity)
    • efficiency of air purification is maximal due to automatic control and correcting
  3. there is a possibility for full remote control of the filter using industrial networks RS232, RS485 or electrical networks
  4. there is a possibility to combine work of the filter with other equipment or devices
1. high price

Operating conditions

The installation requires space defined by dimensions of the filter. The service of the filter requires not less than 1 m distance from each side.

The filter should be placed in a room where the temperature is not below 0 °С.

The potential room for the filter must be equipped with the following utilities:

  • main water;
  • electricity: 220 V for connection of the filter, 380 V for the ventilator;
  • sewerage for the drain of the spent regenerating solution.

The air cleaning system can be integrated into the following types of ventilation systems:

Recirculating system without ducts
Supply ventilation system
Recirculating system with ducts
Exhaust ventilation system

Dimensions

A B C D E F M K x L H h1 h2 Volume of the tank, m3 filter weight, kg d N P Q Weight confuser, kg
FIF -3 1020 780 710 1453 710 820 1130 850 x 720 2050 775 1275 0,37 220 300 273 998 473 15
FIF -5 1020 1260 710 1453 950 1300 1610 850 x 1200 2050 775 1275 0,54 300 400 323 998 573 23
FIF -10 1020 1560 710 1703 1100 1600 1910 1350 x 1500 2550 775 1775 0,64 440 500 373 1498 673 40
FIF -15 1770 1200 1460 1703 920 1240 1540 1350 x 1140 2550 775 1775 1,16 560 600 423 1498 773 35
FIF -20 1770 1560 1460 1703 1100 1600 1910 1350 x 1500 2550 775 1775 1,4 700 700 473 1498 873 44
FIF -25 1770 2060 1460 1703 1350 2100 2410 1350 x 2000 2550 775 1775 1,74 850 800 523 1498 973 56
FIF - CF -3 1581 760 1271 1453 710 820 1130 850 x 720 2050 775 1275 0,7 330 300 273 998 473 15
FIF - CF -5 1581 1260 1271 1453 950 1300 1610 850 x 1200 2050 775 1275 1 450 400 323 998 573 23
FIF - CF -10 1581 1560 1271 1703 1100 1600 1910 1350 x 1500 2550 775 1775 1,2 700 500 373 1498 673 40
FIF - CF -15 2331 1200 2021 1703 920 1240 1540 1350 x 1140 2550 775 1775 1,62 750 600 423 1498 773 35
FIF - CF -20 2331 1560 2021 1703 1100 1600 1910 1350 x 1500 2550 775 1775 1,9 950 700 473 1498 873 44
FIF - CF -25 2331 2060 2021 1703 1350 2100 2410 1350 x 2000 2550 775 1775 2,5 1200 800 523 1498 973 56
CF -5 1382 515 1072 1453 578 555 865 850 x 455 2050 775 1275 0,44 240 400 323 998 573 13
CF -10 1382 1080 1072 1453 860 1120 1430 850 x 1020 2050 775 1275 0,74 400 500 373 998 673 22
CF -15 1382 1080 1072 1703 860 1120 1430 1350 x 1020 2550 775 1775 0,8 510 600 423 1498 773 33
CF -20 1382 1420 1072 1703 1030 1460 1770 1350 x 1360 2550 775 1775 0,92 620 700 473 1498 873 41
CF -25 1382 1760 1072 1703 1200 1800 2100 1350 x 1700 2550 775 1775 1,06 700 800 523 1498 973 50
CF -30 1382 1985 1072 1703 1312 2025 2335 1350 x 1925 2550 775 1775 1,2 800 900 573 1498 1073 57