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Condensate removal iron filter

The iron removing filter is a high-tech energy-saving and environmentally friendly product developed by our company's scientific researchers to overcome the instability of iron ions in high-temperature condensate. Compared with the traditional way of removing iron from condensate, it uses a unique lightweight porous ceramic filter The integrated iron removal system can remove metallic iron, copper, oil (hydrocarbon) organic matters and other pollutants in the condensate water, completely solve the condensate water quality problem, realize the complete recovery of steam condensate water, and save energy and water resources. It reduces the environmental thermal pollution and the noise when the condensate is discharged, and its economic and social benefits are huge.

Factory Photo 3

Control cabinet photos

Harm of iron ions in high-temperature condensate

Harm of iron ions

High iron ion concentration, like divalent metal calcium magnesium, will accumulate in the boiler to form scale. The formed iron oxide scale will cause corrosion under the scale. The heat transfer efficiency of the scale layer is very different from the heat transfer efficiency of the furnace tube. Risk of tube explosion.

2. National Boiler Water Supply Standard

2.1 National Industrial Boiler Water Quality Standard GBl576-2001 requires iron content ≤0.3mg / L Water-based fixed pressure hot water boilers and atmospheric hot water boilers).

2.2 The medium-pressure boiler feed water quality standard (GB12145-89) requires iron content ≤50μg / L.

Process and effect of current condensate removal iron equipment

Iron removal is an important part of the steam condensate treatment process. The feedwater treatment during steam boiler operation generally uses cationic resin or anion-cation resin exchange mode, and then deoxidation treatment, which can basically meet the operation requirements. However, there are still many problems with the treatment of condensate backwater. The condensate water recovered by some users is red or even soy sauce. The main reason is that during the recovery process, the steel of the pipes and containers that the condensate contacts is oxidized and corroded to generate iron oxide. (Fe3O4, Fe2O3) Particulate matter and colloids, the main task of the iron filter for condensate removal is to remove iron oxide particles and colloids in water.

At present, there are mainly three types of iron removal technologies that have appeared in condensate removal iron projects at home and abroad:
1. Filtration and iron removal: such as fiber filters, cover filters, precision filters, etc.
2. Adsorption removal of iron: such as activated carbon tank or cation resin exchanger.
3. High-gradient electromagnetic iron removal in foreign countries.
High-gradient electromagnetic iron removal can effectively remove iron oxide in condensed water, but the operating cost is very expensive. A "high-gradient electromagnetic iron remover" with a processing capacity of 100t / h consumes 1500 degrees of power per day, and the first-level demineralized water for cooling is used daily. More than 200 tons!

These three processes are difficult to meet production needs due to outdated technical concepts, low processing efficiency, poor pertinence, and high operating costs.

Light-weight porous ceramic filter material composite iron removing device

The lightweight porous ceramic filter material composite iron removal device developed by our company is an innovative condensate iron removal technology equipment, which not only has the targeted adsorption and condensation efficiency of iron oxide, but also has high efficiency adsorption of suspended solids and colloids. Filtration function, the electricity, water and material consumption of this iron removal technology equipment are low, the effect of iron removal and filtering suspended matter is stable, the adaptability is strong, and the operation and management are simple and convenient. It has been industrially applied to large-scale condensate removal iron projects one after another. The practice results over the past few years have shown that the equipment has outstanding performance in terms of operating cost, iron removal effect, comprehensive water purification capacity, etc., and the power consumption has decreased compared to traditional electromagnetic iron removal equipment. 82 ~ 88%, which is of great promotion value in the direction of decontamination and iron removal.

working principle

The main filter material of the condensate removal iron filter developed by our company is light porous ceramic filter material, which is sintered at high temperature. It has the characteristics of porous, large surface area, light texture, high temperature resistance, acid and alkali resistance. It is a filtration method that combines adsorption, surface filtration and deep filtration (see the figure below). Compared with quartz sand, because of its strong dirt holding capacity and no precipitation at high temperature, lightweight porous ceramic filter media is a good material for filtering condensate water.

Condensate removal iron filter works

Comparison with traditional iron removal technology
classification Traditional product Siwen Products
Area Big small
Backwash tank must have No need
Backwash pump must have No need
filter Ordinary structure water tank Independent intellectual property rights, patented products
Relative backwash energy consumption 100% 10%
Backwash effect Partial recovery full recovery
Backwash cycle Shorter 5 to 10 times that of traditional equipment
Filter life general Longer
Persistence Jagged stable
Recoil water Gas-water mixing
Technical level common technology Domestic advanced
Adaptability Smaller Very wide
Backwash technology Universal Less water
Relative operating cost 100% 10%

Comparison table of water quality before and after iron removal treatment
project Value range before filtering National standard Filtered value
hardness 0-0.03mmol / l 0.03mmol / L 0-0.03mmol / L
Oil content ≤20mg / L ≤2.0mg / L ﹤ 2.0mg / L
Chroma 15-40FTU ≤25FTU < 1FTU
Turbidity 10-35FTU ≤10FTU ﹤ 1FTU
Iron content 0.3-10mg / L ≤0.3mg / L 0.02-0.2mg / L
Remark Conductivity increase does not exceed 1%

- Device Configuration

  1. Control system: It consists of control cabinet, pressure gauge and solenoid valve. (Can be made in full automatic form according to user needs)
  2. Filtration system: It consists of filter container, filter material, air distribution component, and valve.
  3. Backflushing system: Composed of air source distributor, air compressor, and air pipe fittings.

Filter part name

Features

Specifications

Equipment selection

When selecting the model of the iron removal processor, the actual return water flow of the condensate is used as the basic reference data, and the amount of steam generated by the boiler can be used as the reference value. The specification model is based on 5 tons as a design level, and the corresponding condensate processor design can also be performed according to the customer's specific tonnage requirements. When specific to each actual scheme, it will combine site conditions and make full use of existing facilities and conditions on site to save investment for users.

Let people who know the recovery of steam condensate help you make the right decision. The national unified sales phone: 400-600-0109 (free of long distance charges) or online consultation immediately .

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【 product list】

Steam condensate recovery series
Steam condensate recovery device
Pneumatic Condensate Recovery Pump
Condensate recovery system without trap
Hydrophobic automatic pressure device
Flash tank
Double barrel siphon type condensate water recovery machine
Steam recovery machine
Condensate recovery auxiliary equipment
Low-level thermal deaerator series
Low-level thermal deaerator
Headless deaerator
Exhaust steam recovery device
Condensate fine treatment series
Condensate removal of iron
Condensate deconductivity
Boiler waste heat recovery series
Boiler waste heat recovery device
Boiler flue gas waste heat recovery device
Boiler continuous blowdown expansion vessel
Boiler regular blowdown and expansion container
Heat exchanger series
Corrugated plate heat exchanger
Bellows heat exchanger
Double-tube heat exchanger
Floating coil / semi-heatable heat exchanger
Efficient intelligent heat exchange unit
Positive displacement heat exchanger
Softened water series
Automatic softened water system
Automatic dosing device
Reverse osmosis system
Ion exchanger
Multi-media filter
Activated carbon filter

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