Ceramic Applications for Wear Protection of Pipe Lines and Cyclones

Foster, John F.

doi:10.4028/www.scientific.net/kem.122-124.247

Cited by 14 publications

(17 citation statements)

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“…Furthermore, alumina protection is applied to transport pipes of sand tailings in Canadian tarsand extraction facilities in northern Alberta, and for the lining of cyclones to clean and classify ores in all fi elds of wet mineral processing (Foster, 1996 ). Furthermore, alumina protection is applied to transport pipes of sand tailings in Canadian tarsand extraction facilities in northern Alberta, and for the lining of cyclones to clean and classify ores in all fi elds of wet mineral processing (Foster, 1996 ).…”

Section: Selected Applications Of Alumina Ceramicsmentioning

confidence: 99%

Oxide Ceramics: Structure, Technology, and Applications

2010

Classic and Advanced Ceramics

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Section: Selected Applications Of Alumina Ceramicsmentioning

confidence: 99%

Oxide Ceramics: Structure, Technology, and Applications

2010

Classic and Advanced Ceramics

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“…A seleção do concreto refratário para linhas de transferência depende de uma série de fatores incluindo a vida operacional planejada para o equipamento, o custo do revestimento, sua qualidade, parâmetros de projeto, dimensões do equipamento, material a ser transportado, velocidade do fluxo e ataque químico [2].…”

Section: Erosão Nas Aplicações Industriaisunclassified

Fundamentos e testes preliminares de resistência a erosão em concretos refratários

et al. 2006

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O desgaste de revestimentos refratários é um dos principais problemas em processos industriais onde as linhas de transferência estão sujeitas à alta velocidade de fluidos contendo partículas sólidas. Os trabalhos encontrados na literatura sobre desgaste erosivo em materiais refratários são raros. Como conseqüência, o desenvolvimento de materiais mais resistentes à erosão tem sido lento e, em geral, por meios empíricos. Este trabalho teve como objetivos apresentar uma revisão sobre a importância da erosão nas aplicações industriais e averiguar a resistência ao desgaste de concretos refratários em unidades de fabricação de alumínio e em petroquímicas. As variáveis avaliadas foram: o ângulo de impacto, a pressão da linha, a granulometria e a dureza do agente erosivo, e a temperatura do tratamento térmico a que o material foi submetido. Verificou-se que o histórico do tratamento térmico pode levar a comportamentos distintos quanto ao desgaste erosivo, devido a mudanças nas características dos aditivos ligantes usados em cada material. Constatou-se que o maior desgaste ocorre com um ângulo de impacto de 90º entre o jato erosivo e o material, decrescendo gradativamente até o ângulo de 30º. Verificou-se também que maiores valores de velocidade, dureza e raio da partícula resultam em maior erosão.

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“…There are two types of dense medium separators in mineral processing, which are dense medium cyclone and dense medium vessel, as shown in Figure 3. Since ceramic linings have been developed and commercially used in dense medium cyclones to protect their inner walls (Foster, 1996), the wear enhancement of dense medium cyclones will not be covered in this research. It should be noted that the wear issues concerning heavy medium vessels which accounts for 26.3% of the coal preparation units in the United States (Laurila, 1998) have not been well addressed.…”

Section: Figure 3 a Typical Dense Medium Vesselmentioning

confidence: 99%

Development of Advanced Surface Enhancement Technology for Decreasing Wear and Corrosion of Equipment Used for Mineral Processing

Tao¹,

Blue²

2005

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Equipment wear is a major concern in the mineral processing industry, which dramatically increases the maintenance cost and adversely affects plant operation efficiency. In this research, a novel surface treatment technology, laser surface engineering (LSE) surface coating process was proposed for the surface enhancement of selected mineral processing equipment. Microstructural and mechanical properties of the coated specimen were characterized. Laboratory-simulated wear tests were conducted to evaluate the tribological performance of the coated components. Test results indicate that the wear resistance of ASTM A36 (raw coal screen section) and AISI 4140 steels can be increased 10 and 25 folds, respectively by the application of LSE process. Initial field testing showed a 2 times improvement of the service life of a raw coal screen panel.

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Ceramic Applications for Wear Protection of Pipe Lines and Cyclones

Cited by 14 publications

References 0 publications

Oxide Ceramics: Structure, Technology, and Applications

Oxide Ceramics: Structure, Technology, and Applications

Fundamentos e testes preliminares de resistência a erosão em concretos refratários

Development of Advanced Surface Enhancement Technology for Decreasing Wear and Corrosion of Equipment Used for Mineral Processing

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