Filtration performance characteristics of ceramic candle filter based on inlet structure of high-temperature and high-pressure dust collectors

Lee, Kang San; Sohn, Jong Ryeul; Park, Young Ok

doi:10.1016/j.jiec.2014.09.004

Cited by 32 publications

(11 citation statements)

References 8 publications

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“…In general, incinerated ash is categorized as bottom ash and fly ash. While bottom ash remains at the bottom of the incinerator, fly ash must be collected using an appropriate filter. − During incineration, fly ash can adhere to the surfaces of both the incinerator and dust filter and then accumulate over time. Since this grown layer can potentially block the gas flow and damage the filter, thus preventing the stable and long-term operation of incineration plants, fly ash adhesion must be monitored carefully and suppressed as much as possible.…”

Section: Introductionmentioning

confidence: 99%

Toward Stable Operation of Sewage Sludge Incineration Plants: The Use of Alumina Nanoparticles to Suppress Adhesion of Fly Ash

et al. 2019

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In sewage sludge incineration plants, fly ash can adhere to the surfaces of both the incinerator and dust filter and then accumulate over time. Since this grown layer can potentially block the gas flow and damage the filter, thus preventing stable and long-term operation of incineration plants, fly ash adhesion must be monitored carefully and suppressed as much as possible. Herein, we used three different fly ash samples to demonstrate that the merger of experimental and theoretical approaches enabled a rational choice of additive that could suppress fly ash adhesion. The tensile strength of ash powder beds provided a benchmark for the adhesive properties, which were further studied by thermodynamic calculations. Experimental and theoretical results suggest that the use of alumina nanoparticles is a promising approach to suppress the adhesion of fly ash containing a relatively high concentration of phosphorus components.

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Section: Introductionmentioning

confidence: 99%

Toward Stable Operation of Sewage Sludge Incineration Plants: The Use of Alumina Nanoparticles to Suppress Adhesion of Fly Ash

et al. 2019

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“…To operate for prolonged periods, the particle layer formed on the filter surface should be regularly cleaned. This task is referred to as the filter cleaning efficiency [14]. Figure 7 shows the dust stuck on the bag filter and the dust falling from the bag filter by a pulsing operation.…”

Section: Cleaning Efficiencymentioning

confidence: 99%

Removal characteristics of paint particles generated from paint spray booths

Lee

Jeon

Hasolli

et al. 2019

J Mater Cycles Waste Manag

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The objective of this study is to eliminate the tackiness of sticky paint particles occurring in paint booths using calcium hydroxide. It ultimately aims to identify the optimal filtration velocity to determine the optimal operation condition for particle collection in the filter. As the filtration velocity increased further in the range of 0.2-0.5 m/min, the pressure drop increased rapidly, while the cleaning efficiency, overall collection efficiency, and fractional collection efficiency tended to decrease. The filtration velocity for optimal filtration condition was identified to be 0.2 m/min.

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“…Based on Equation 2, as the pressure drop increases due to the aerosol, the aerosol must be twisted with an impacting air flow stuck on the filter, which refers to pulsing. The time between the first pulsing and the second pulsing refers to a cleaning interval [15,16]. Figure 5 shows the results of the cleaning interval at the flow rates 5, 10, and 15 Nm 3 /min.…”

Section: Cleaning Intervalmentioning

confidence: 99%

Filtration Performance Characteristics of Sticky Aerosol Using Calcium Hydroxide

et al. 2019

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This study examined the performance of removing aerosol upon a flow rate variable by agglomerating sticky aerosol with calcium hydroxide and removing cohesive aerosol through an experimental apparatus, simulating an actual painting booth. As a result of examining the performance of the filter by fixing the paint spray quantity, the calcium hydroxide input and the filtration area under variable flow rates of 5, 10, and 15 Nm3/min, we confirmed that the filter performance has long average aerosol removing intervals at the 5 Nm3/min flow rate. At the 5 Nm3/min flow rate, there is a low residual pressure drop trend and high fractional collection efficiency, and a high level of total collection efficiency is maintained at 99.42%. When the flow rate is less than 5 Nm3/min, the aerosol settling and experimentation was impossible. With this research, the optimal conditions for the use of sticky aerosol have been examined.

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Filtration performance characteristics of ceramic candle filter based on inlet structure of high-temperature and high-pressure dust collectors

Cited by 32 publications

References 8 publications

Toward Stable Operation of Sewage Sludge Incineration Plants: The Use of Alumina Nanoparticles to Suppress Adhesion of Fly Ash

Toward Stable Operation of Sewage Sludge Incineration Plants: The Use of Alumina Nanoparticles to Suppress Adhesion of Fly Ash

Removal characteristics of paint particles generated from paint spray booths

Filtration Performance Characteristics of Sticky Aerosol Using Calcium Hydroxide

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