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| Study on the preparation and properties of new high strength corrosion resistant alloy filter for high temperature flue gas dust removal |
| KANG Yan，XU Pei-min，ZHANG Xiao-qing，LU Wen-jing，HOU Li-qiang |
| Xi’an Filter Metal Materials Co.， Lid.， Xi’an 710201， China |
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Abstract Through the process of cogging， drawing， carding and sintering， the new high-strength corrosion resistant alloy filter was prepared with [?]240 mm ingot as raw material. The high temperature oxidation resistance， high temperature tensile properties and filtration properties of the filter were systematiclly studied. Results show that the filter has good oxidation resistance at 700 ℃. When the temperature increases from room temperature to 650 ℃， the tensile strength of the alloy filter decreases linearly. Meanwhile， the elongation of the alloy decreases slowly when the temperature is lower than 150 ℃， and it decreases rapidly at 150-450 ℃， while it decreases slowly when the temperature is higher than 450 ℃. When the filtration velocity is 1.5 m/min and 5.0 m/min， the filtration efficiency of the filter material for the particles with particle size larger than 0.5 μm is more than 98%. The outlet dust concentration is only 0.5 mg/m3， which completely meets the emission standards of air pollutants in the fields of metallurgy， chemical and energy.
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Received: 21 February 2017
Published: 09 June 2017
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2017, Vol. 27 
