• Title, Summary, Keyword: dust collector

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Performance Comparison of a Fabric Filter System with Centrifugal Force and a Conventional Fabric Filter System (원심력이 적용된 여과포집진장치와 기존 집진장치의 성능비교)

  • Kim Sang-Do;Park Young-Ok;Kang Yong
    • Journal of Korean Society for Atmospheric Environment
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    • v.20 no.6
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    • pp.739-748
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    • 2004
  • A hybrid dust-collector combining a fabric filter with centrifugal force was developed to enhance the performance of the conventional fabric filter systems and its performances were evaluated to compare to that of the existing dust collector. The pressure drop rapidly increased with increasing the elapsed time and the face velocity in two filtration systems. But the increasing ratio of a hybrid dust-collector compare to the existing dust collector was lower. This results were confirmed from the performance such as cleaning interval, residual pressure drop and dust loading rate. The overall collection efficiency of the hybrid dust-collector was more than 99.6% and this showed a improvement of 0.6~2% than that of the existing dust collector. Especially, the fractional collection efficiency at the particle size of around 1${\mu}{\textrm}{m}$ is about 4% higher than that of the existing dust collector.

A Study on Three-Dimensional Flow Analysis of Horizontal type Dust Collector (수평형 집진기의 3차원 유동해석에 관한 연구)

  • Won, Jong-Wun;Kim, Yong-Il
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.20 no.12
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    • pp.519-524
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    • 2019
  • A horizontal dust collector is used in a large wind-volume grain dryer. In this study, Computational Fluid Dynamics (CFD) was used to analyze the flow characteristics inside the dust collector, including the effects of wear on the conical hub on the dust collection performance. Recently, a horizontal cyclone dust collector was developed with a conical hub and fixed vanes at the inlet of the dust collector to generate swirl flow to separate foreign matter from the air. The dust collector is relatively small in size and easy to install, and it has a relatively low back pressure, which does not require any additional power. However, there are problems with a back pressure problem and dust deposition that are caused by the shape of the horizontal dust collector. To solve these problems, the flow characteristics were studied with internal shapes of the dust collector using three-dimensional flow analysis.

Development of a Remote Dust Collector Bag Control System using Power Line Communication (전력선 통신을 이용한 원격 집진기 bag 제어 시스템 개발)

  • Kim, Jung-Sook
    • Journal of the Korea Society of Computer and Information
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    • v.15 no.4
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    • pp.91-98
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    • 2010
  • Advances in communications and control technology, the strengthening of the Internet, and the growing recognition of the urgency to reduce the risk and production cost are motivating the development of improvements in the traditional manufacturing industry. In this paper, we developed a remote dust collector bag control system which is a combination of advanced IT and traditional dust collector based on the event. At first, we made the A/D(Analog/Digital) converter using a micro processor because the differential pressure transmission, which is a sensor of the dust collector, produces analog volt data. A/D converter can provide RS-232 communication to connect with Power Line Communication(PLC) modem. And, n-bytes message format was defined for the efficient dust collector bag information transmission from a dust collector to a user. Also, we designed the data types to model the dust collector and the dust collector bag, and they were logically modeled using XML and object-oriented modeling method. In addition to that, we implemented the system for showing the dust collector bag exchange time exactly to users at real-time using various visual user interfaces.

Comparisons of Dust Collection Efficiency on the Tangental Entry and Axial-vane Type Cyclone (접선유입식과 축상유입식 사이클론의 집진효율 비교)

  • Yi, Chung-Seob;Lee, Chi-Woo
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.10 no.6
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    • pp.115-121
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    • 2011
  • This study is about comparison of tangental entry type cyclone dust collector with axial vane type cyclone dust collector. Cut diameter and dust collection efficiency of both collector was compared by theory and experiment. Cut diameter was calculated by an quasi-empirical formula by Lapple and Shepherd. Measurement of cut diameter was conducted by particle counter through dust generator. As the result, cut diameter obtained by experiment was a little larger than that by theory. But the error is within $0.5{\mu}m$ in both type of collector, so it could be confirmed that theoretical value and experimental value were almost identical. And, as flow rate increased, dust collection efficiency was increased. Also axial vane type showed higher dust collection efficiency than tangental entry type. Therefore, it can be said that axial vane type cyclone dust collector has higher performance than the other.

Performance Evaluation of a Hybrid Dust Collector for Removal of Airborne Dust in Urban Railway Tunnels (도시철도 터널 미세먼지 제거용 하이브리드형 집진장치의 성능평가)

  • Woo, Sang Hee;Kim, Jong Bum;Jang, Hong Ryang;Kwon, Soon Bark;Yook, Se-Jin;Bae, Gwi-Nam
    • Journal of the Korean Society for Railway
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    • v.20 no.4
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    • pp.433-439
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    • 2017
  • Urban railway tunnels are polluted by resuspension of deposited bottom dust or newly generated wear dust. A hybrid type dust collector consisting of a baffle and an electrostatic precipitator was developed to remove these types of airborne dust when trains are running in the tunnel. Since dust collection efficiency of the hybrid dust collector is inversely proportional to the airflow rate, the relationship between airflow rate and dust collection efficiency was experimentally investigated for two baffle models. Collection efficiencies for dust larger than $0.5{\mu}m$ for the hybrid dust collector model A1, operated at 3.4 m/s, were greater than 30%; those for the hybrid dust collector model A2, operated at 4.7 m/s, were higher than 20%. When the applied voltage was 13 kV, the amounts of $PM_{10}$ collected with model A1 and model A2 dust collectors were estimated at $253{\mu}g$ and $242{\mu}g$ per hour, respectively.

A Study on the Performance Test of Axial-flow Cyclone Separator (축상유입식 사이클론 집진기 성능시험에 관한 연구)

  • Chin, Do-Hun
    • Journal of the Korean Society of Industry Convergence
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    • v.23 no.1
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    • pp.101-106
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    • 2020
  • Along with dust collection efficiency, pressure loss is a very important cyclone operation factor. A severe rise in pressure loss causes the problem of cost. To solve the problem, the method connecting axial-vane type cyclones in parallel is suggested recently. The axial vane type cyclone dust collector applied in this study is a small portable type. Multiple cyclones are installed in a round type. The basic performance test on the axial vane type cyclone dust collector was conducted. As a result, the cut size reduced along with a rise in the wind velocity of the cyclone dust collector inlet. According to the test on dust collection efficiency, the effect of dust collection began to appear in the range of 3㎛ and dust collection efficiency was greatly improved at 5 ㎛. The noise of the cyclone dust collector well met the fan sound power level of KSB 6361.

A Study on the Mass Collection Efficiency in Collector Step of Electrostatic Precipitator by Physical Gas Characterization (전기집진장치에서 가스의 물리적인 특성에 따른 포집구역내의 입자포집율 연구)

  • Ha, Sang-An;Im, Gyeong-Taek;Sin, Nam-Cheol
    • Journal of Environmental Science International
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    • v.7 no.1
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    • pp.36-40
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    • 1998
  • This study was carried out to investigate the collection Efficiency of mass in collector step at the different of physical gas characterization. This work has focused on the dependence of the collection efficiency of mass in the collector zone of a two-stage set up field with gas temperature T and the dew point tmeperature. To identify the dependence of the mass collection efficiency on the Bounded plate of the collector zone MP.k by the spectre electric resistance of dust $p_e$. and the relative humidify ${\varphi}$, 20 at- tempts have been made with three different gas temperature ($50{\circ}C, 80{\circ}C, 110{\circ}C$) at different dew point. At the specific electric resistance of dust $p_e$=$10^6{\Omega}m$ which relative humidity corresponds to $\phi$ > 15%, a easy rise of the sounded plate secluded dust mass share was measured atwain. As the result of the higher cohesion imprisonment power due to the adsorbtion of particle, the rinse of the relative humidity developed on the particle surface. Therefore, the collection efficiency of mass was not predominant the high temperature T in the collector zone, neither was the pecific ellectric resistance of dust dependent.

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Performance Characteristics of Louver Dust Collectors (루버 집진기의 성능특성)

  • Woo, Sang-Hee;Kim, Jong Bum;Park, Tong-Il;Yook, Se-Jin;Kwon, Soon Bark;Bae, Gwi-Nam
    • Particle and aerosol research
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    • v.12 no.1
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    • pp.11-20
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    • 2016
  • A large amount of wear dust generated during train operation is a major dust source in urban railway tunnels. To check possibility of a louver dust collector for the removal of dust in the railway tunnel, five louver dust collector models were designed and their performance was tested in a wind tunnel. JIS Z 8901 Class 8 dust was used as a test dust. Pressure drop and particle collection efficiency were evaluated with the face velocity ranging from 1 m/s to 4 m/s. At this low velocity range, particle collection efficiency of the louver dust collector was found to be insensitive to air velocity and design parameters. Pressure drop was under 40 Pa, and $PM_{10}$ and $PM_{2.5}$ collection efficiencies were approximately 50% and 30%, respectively.

Dust collector strainer and carbon filter pressure permeation analysis (흡연집진기 내 스트레이너 및 카본필터 압력투과 해석)

  • Lee, Chi-Woo
    • Journal of Power System Engineering
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    • v.19 no.4
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    • pp.5-10
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    • 2015
  • Dust collector is one of the most widely used equipment among the method of separating particles, it filters exhaust gas having various kinds of dusts through several filters installed on parallel. This research investigated the moving characteristic of Honeycomb-type carbon filter in pressure drop of smoking collector's ventilation system. It also compared pressure transmission coefficient through pressure drop according to flow velocity change.

Implementation of RF Monitoring System for the Dust Collector in Industrial Environments (산업 환경에서의 집진기에 대한 RF모니터링 시스템 구현)

  • Lee, Sung-Yeob;Lee, Kwang-Hee;Ko, Bong-Jin
    • Journal of Advanced Navigation Technology
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    • v.18 no.5
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    • pp.513-517
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    • 2014
  • In this study, we implemented and designed an RF monitoring system to manage a dust collector wirelessly, which is manually operated. The dust collector prevents the emission of air pollutants and improves air condition. It is possible to implement a high-value monitoring system of a dust collector, the system will wirelessly monitor many important data such as the operating time, the amount of electricity consumption, and the differential pressure value of a large number of the dust collectors in an industrial site, the system also displays and saves these data on a manager's PC, and when an error occurs, the system sends the error message to a manager's mobile phone. Therefore, through the RF monitoring system implemented in this paper, it is possible to reduce unnecessary loss for recording information of each dust collector to stack emission management system (SEMS).