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The use of surfactants as wetting agents to suppress sulfide ore dust has been investigated. Numerous surfactants were examined to determine their characteristics and to investigate their ability ...
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Request PDF | On Jan 1, 2022, Yen-Yi Lee and others published Suppression Efficiency for Dust from an Iron Ore Pile Using a Conventional Sprinkler and a Water Mist Generator | Find, read and cite ...
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Handling taconite pellets produces dust. As the pellets are transported, they abrade and produce a fine material that represents a concern for airborne dust. Pellet-breakdown studies revealed that as much as 43% (by weight) of the fine particles were 10 μm in diameter and smaller (material regulated by the U.S. Environmental Protection …
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Wetting reagents are extremely popular dust suppressants. This is the result of beliefs that effective material wetting was the critical factor in reducing airborne dust. Unfortunately, personnel at an iron ore facility reported wetting reagents were not effective for iron ore. To determine which types of reagents would be effective for iron ore, a …
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Wetting reagents are extremely popular dust suppressants. This is the result of beliefs that effective material wetting was the critical factor in reducing airborne dust. Unfortunately, personnel at an iron ore facility reported wetting reagents were not effective for iron ore. To determine which types of reagents would be effective for iron ore, a …
WhatsApp: +86 18221755073
Wetting reagents are extremely popular dust suppressants. This is the result of beliefs that effective material wetting was the critical factor in reducing airborne dust. Unfortunately, personnel at an iron ore facility reported wetting reagents were not effective for iron ore. To determine which types of reagents would be effective for iron ore, a novel laboratory …
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16 Re-suspension of iron ore dust presents a constant hazard in the working environment within 17 steel production plants. Herein, the optimal operating parameters for maximum dust suppression 18 efficiencies through a water mist generator and a conventional sprinkler for particulate matter 19 (PM) originating from an iron ore pile measuring about …
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Handling taconite pellets produces dust. As the pellets are transported, they abrade and produce a fine material that represents a concern for airborne dust. Pellet-breakdown studies revealed that as much as 43% (by weight) of the fine particles were 10 μm in diameter and smaller (material regulated by the U.S. Environmental Protection Agency). …
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DOI: 10.1016/J.MINPRO.2009.09.003 Corpus ID: 95476336; Suppression of airborne particulates in iron ore processing facilities @article{Copeland2009SuppressionOA, title={Suppression of airborne particulates in iron ore processing facilities}, author={Christopher Copeland and Timothy C. Eisele and Surendra K. Kawatra}, …
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DOI: 10.1016/J.MINPRO.2009.09.003 Corpus ID: 95476336; Suppression of airborne particulates in iron ore processing facilities @article{Copeland2009SuppressionOA, …
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Iron ore pellets abrade during handling and produce dust. This study was conducted to determine what factors affect pellet dustiness, and whether dustiness can be related to the abrasion index.
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Laboratory studies have shown that the use of sodium metasilicate reduced airborne particles finer than 10 µm (PM10) by 86% and particles finer than 2.5 µm (PM2.5) by 80% for iron ore. Additional studies were conducted that revealed that nanop articulate emissions were present in the types of operations conducted at pyrometallurgical facilities.
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DOI: 10.1016/J.MINENG.2011.07.008 Corpus ID: 95538045; Design of a dust tower for suppression of airborne particulates for iron making @article{Copeland2011DesignOA, title={Design of a dust tower for suppression of airborne particulates for iron making}, author={Christopher Copeland and Surendra K. Kawatra}, journal={Minerals …
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Handling taconite pellets produces dust. As the pellets are transported, they abrade and produce a fine material that represents a concern for airborne dust. Pellet-breakdown …
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To better understand the problem of airborne dust at iron ore facilities, the breakdown kinetics was studied by Copeland and Kawatra (2005) and Copeland et al. …
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Iron Ore Pellet Dustiness Part I: Factors Affecting Dust Generation, Mineral Processing and Extractive Metallurgy Review, 36:4, 258-266, DOI: 10.1080/08827508.2014.928876
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Prior works utilizing a novel dust tower have not shown a correlation between dust suppression and wetting rate for iron ore (Copeland and Kawatra, 2005, 2006). However, in these dust studies, only the equilibrium extent of wetting was a factor, and kinetics were not involved in the dust Paper number MMP-07-039.
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is how the wetting rate influences dust suppression. Prior works utilizing a novel dust tower have not shown a cor relation between dust suppression and wetting rate for iron ore (Copeland and Kawatra, 2005, 2006). However, in these dust studies, only the equilibrium extent of wetting was a factor, kinetics were not involved in the dust
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Unfortunately, these reagents were not effective in reducing ambient dust levels from the iron ore facility. The effects of various suppressants on the wetting rate of iron ore were relatively unknown. Previous studies found that acetyletic glycol surfactants were extremely effective for iron ore (Copeland & Kawatra, 2005).
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Are surfactants effective for iron ore dust control. C. Copeland S. Kawatra. Environmental Science, Materials Science. 2007; Wetting reagents are extremely popular dust suppressants. This is the result of beliefs that effective material wetting was the critical factor in reducing airborne dust.
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DOI: 10.1016/0148-9062(95)94865-1 Corpus ID: 106612294; The effect of added base on coal wetting ability of nonionic surfactant solutions used for dust control @article{Kim1994TheEO, title={The effect of added base on coal wetting ability of nonionic surfactant solutions used for dust control}, author={J. Kim and Jerry C. Tien}, …
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To better understand the problem of airborne dust at iron ore facilities, the breakdown kinetics was studied by Copeland and Kawatra (2005) and Copeland et al. …
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Furthermore, surface area coverage did not appear to be a significant factor in iron ore dust suppression. Using a hygroscopic reagent which retained moisture (and actually made the iron ore wet ...
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Copeland and Kawatra (2005) showed that different types of iron ore pellets generated varying quantities of fine particles (<600 mm) using a set of mechanically agitated screens. ... S. K., 2005, ''Dust suppression in iron ore processing plants.'' Minerals & Metallurgical Processing, 22(4), pp. 177–191. Fagerberg, B. and Sandberg, N ...
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The dust tower used in this study was originally designed to test the effectiveness of dust suppressants for iron ore pellets (Copeland and Kawatra 2011). The height (2.7 m) was chosen to be ...
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Water sprays are a common method used to reduce particulate matter (PM) emissions. Various factors such as wettability, surface area coverage, fine particle engulfment rates, interparticle adhesion forces, suppressant penetration and suppressant longevity have all been suggested as critical factors in achieving effective PM control. …
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The detailed dustiness experiment was explained, elsewhere (Copeland and Kaw atra, ... "Dust Suppression in iron ore processing plant", Mineral s & Metallurgical Processing, 22, 4, Nov 2005 ...
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The use of surfactants as wetting agents to suppress sulfide ore dust has been investigated. Numerous surfactants were examined to determine their characteristics and to investigate their ability to improve the wetting of the sulfide ore dust. However, the surfactants selected as suitable dust suppressors proved to have a negative effect on …
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Copeland, C.R., and Kawatra, S.K., 2006, "Surfactants: Do they work for suppression of dust in iron ore plants?' Particle Technology Forum of the American Institute of Chemical Engineers, Orlando, Florida, April. Google Scholar
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Taconite (iron ore) pellets abrade during handling, forming large quantities of fine particulate matter that are easily carried by the air as dust. This dust must be controlled in order to meet air quality standards for particles finer than 10 µm (PM 10 ). It has been …
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