Sponge iron filter material (except oxygen agent) used quality sponge iron ore, using oxidation restore principle, through filter type except Lake way for excluded, on pipeline, boiler and cycle water dissolved oxygen corrosion by processing Hou water dissolved oxygen content can down to 0.05/L following, the except oxygen agent has anti-wash frequency low, anti-oxygen strength high, not powder of, not harden, than surface area big. High activity, regeneration effect, full compliance with the national boiler water quality standards. By the activation of sponge iron level remover, sponge porous iron tablets to provide dissolved oxygen in the water and the opportunity of active iron reacts.
Sponge iron filter material main technology parameter: sponge iron has better of restore activity and high than surface area features, as water except oxygen agent of sponge grain degrees for 2-5mm, pore rate very high, than surface area big, activity high, very easy and water in the of oxygen occurred reaction generated Fe3O3, to reached except oxygen purpose, reaction product for easily dissolved Yu water of Floc precipitation, was intercept down, with must strength of anti-wash water can flush clean. 1, work principle at room temperature filter type except oxygen is chemical except oxygen, it used specifically production of activity sponge iron (directly restore iron) to removal water in the dissolved oxygen, sponge iron main components is iron, its loose more hole of internal structure, provides of than surface area is General iron of 5.1 million times, can makes water in the of oxygen and iron occurred quickly completely of oxidation reaction, makes dissolved oxygen stable in 0.05mg/L following, its reaction type for:
2Fe2+ + 2H2O + O2→2Fe (OH) 2 4Fe (OH) 2+ 2H2O +O2→4Fe (OH) 3
The product Fe (OH) 2, Fe (OH) 3 as a Flocculent precipitate easily soluble in water, when the water flow through the rest of sponge iron particles are stopped, as long as a certain intensity of backwash water can wash (about 5 minutes).
Sponge iron consumption is very low, according to the different treatment of water quantity and water quality, 3-6 month added once.
Index name, index name
Name value name value
Activated carbon% ≥ 85 SiO2+Al2O3% ≤ 5.5
Compressive strength n/p ≥ s ≤ 3500 0.013
Drum index +2.5mm% p ≥ 90% ≤ 0.06
Wear index 1-mm% ≥ 10 T/m3 bulk density 2.2
Specific surface ≥ 80 by m2/g As SN Sb Bi Pb Cu (each)% 0.002
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