KR100954279B1 - Automatic apparatus for particle size analysis of charging coal in coke oven - Google Patents

Automatic apparatus for particle size analysis of charging coal in coke oven Download PDF

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KR100954279B1
KR100954279B1 KR1020020083459A KR20020083459A KR100954279B1 KR 100954279 B1 KR100954279 B1 KR 100954279B1 KR 1020020083459 A KR1020020083459 A KR 1020020083459A KR 20020083459 A KR20020083459 A KR 20020083459A KR 100954279 B1 KR100954279 B1 KR 100954279B1
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particle size
sample
coal
coke oven
charged
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KR20040056874A (en
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김기홍
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재단법인 포항산업과학연구원
주식회사 포스코
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/22—Fuels; Explosives
    • G01N33/222—Solid fuels, e.g. coal
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/02—Investigating particle size or size distribution
    • G01N15/0205—Investigating particle size or size distribution by optical means
    • G01N15/0211—Investigating a scatter or diffraction pattern
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/02—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
    • G01N35/04—Details of the conveyor system
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/02—Investigating particle size or size distribution
    • G01N15/0205—Investigating particle size or size distribution by optical means
    • G01N15/0211—Investigating a scatter or diffraction pattern
    • G01N2015/0216—Investigating a scatter or diffraction pattern from fluctuations of diffraction pattern
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/02—Investigating particle size or size distribution
    • G01N2015/0288—Sorting the particles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N2035/00178—Special arrangements of analysers
    • G01N2035/00207—Handling bulk quantities of analyte
    • G01N2035/00227—Monitoring a process (online)
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/02—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
    • G01N35/04—Details of the conveyor system
    • G01N2035/046—General conveyor features
    • G01N2035/0465—Loading or unloading the conveyor

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Abstract

본 발명은 코크스오븐 장입탄의 입도분석용 장치에 관한 것으로서, 더욱 상세하게는 코크스오븐의 조업상황을 실시간으로 제어하기 위해 코크스오븐에 장입되는 원료탄의 입도분포를 공정상에서 실시간으로 자동분석하는 코크스오븐 장입탄의 입도 자동분석장치에 관한 것이다.The present invention relates to a device for analyzing the particle size of the coke oven charging coal, and more particularly, to analyze the particle size distribution of the raw coal charged in the coke oven in real time in order to automatically control the operating situation of the coke oven in real time coke oven The present invention relates to an automatic particle size analyzer for charged coal.

코크스오븐, 장입탄, 원료탄, 석탄, 입도분석, 샘플링, 해머샘플러Coke oven, charged coal, raw coal, coal, particle size analysis, sampling, hammer sampler

Description

코크스오븐 장입탄의 입도 자동분석장치{Automatic apparatus for particle size analysis of charging coal in coke oven}Automatic apparatus for particle size analysis of charging coal in coke oven}

도 1은 본 발명에 따른 코크스오븐 장입탄의 입도 자동분석장치에 대한 개념도이다.1 is a conceptual diagram of an automatic particle size analyzer of the coke oven charging coal according to the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

1 : 장입탄 운반용 콘베이어벨트 2 : 헤머샘플러1: charging coal conveyer belt 2: hammer sampler

3 : 시료 수송관 4 : 시료진동 공급기3: sample transport pipe 4: sample vibration feeder

5 : 체(sieve) 6 : 시료 분급기5: sieve 6: sample classifier

7 : 입도분석기 8 : 시료 배출관7: particle size analyzer 8: sample discharge pipe

본 발명은 코크스오븐 장입탄의 입도분석용 장치에 관한 것으로서, 더욱 상세하게는 코크스오븐의 조업상황을 실시간으로 제어하기 위해 코크스오븐에 장입되는 원료탄의 입도분포를 공정상에서 실시간으로 자동분석하는 코크스오븐 장입탄의 입도 자동분석장치에 관한 것이다.The present invention relates to a device for analyzing the particle size of the coke oven charging coal, and more particularly, to analyze the particle size distribution of the raw coal charged in the coke oven in real time in order to automatically control the operating situation of the coke oven in real time coke oven The present invention relates to an automatic particle size analyzer for charged coal.

일반적으로, 코크스오븐(coke oven)에 장입되는 원료탄의 입도분포는 코크스 의 품질에 지대한 영향을 미치는 관리인자로 제철용 코크스를 만드는 원료탄의 경우 통상 3mm이하 분율을 80±2%로 관리하고 있다.In general, the particle size distribution of the raw coal charged into the coke oven is a control factor that greatly affects the quality of the coke. In the case of raw coal making steel coke, a fraction of 3 mm or less is usually controlled at 80 ± 2%.

이러한 입도를 맞추기 위해서는 파쇄기의 헤머와 판의 간극을 조정하여 입도를 조정하며, 파쇄과정을 거친 석탄의 입도분포 분석은 통상 체(sieve)를 이용한 수동작업으로 이루어져 왔다.In order to adjust the particle size, the particle size is adjusted by adjusting the gap between the hammer and the plate of the crusher, and the particle size distribution analysis of the crushed coal has been generally performed by manual work using a sieve.

이러한 수동작업은 시간이 많이 소요되는 단점과 실시간으로 변하는 원료탄의 입도분포 상황을 알 수 없기 때문에 코크스오븐의 탄화실내 장입되는 탄의 높이를 일정하게 관리하는데 어려움이 있었다.This manual work is difficult to manage the height of the coals charged in the carbonization chamber of the coke oven because the time-consuming disadvantages and the particle size distribution of the raw coal changes in real time is not known.

탄화실내 장입되는 탄의 높이를 일정하게 관리하는 것이 중요한 이유로는 코크스오븐에 공급되는 열량 조절이 용이하며 코크스의 품질편차를 줄일 수 있는 장점을 갖고 있기 때문이다. 또한, 탄화실내 장입되는 탄의 높이를 일정하게 유지하기 위해서는 장입탄의 밀도를 알아야 하는데, 장입탄의 밀도는 탄의 수분과 입도분포와 밀접한 관계를 갖고 있다.It is important to maintain the constant height of the coals charged in the carbonization chamber because it is easy to control the amount of heat supplied to the coke oven and to reduce the quality deviation of the coke. In addition, in order to maintain a constant height of the coals charged in the carbonization chamber, the density of the charged coals must be known, and the density of the charged coals is closely related to the moisture and particle size distribution of the coals.

본 발명은 상기와 같은 제반 사항을 감안하여 창안된 것으로서, 코크스오븐의 조업상황을 실시간으로 제어하기 위해서 코크스오븐에 장입되는 장입탄의 입도분포를 실시간으로 측정할 필요가 있는데, 이를 위해 공정상에서 장입탄을 자동 채취하고 채취된 장입탄의 입도를 자동분석하는 코크스오븐 장입탄의 입도 자동분석장치를 제공하는데 그 목적이 있다.The present invention was devised in consideration of the above-mentioned matters, and in order to control the operating situation of the coke oven in real time, it is necessary to measure the particle size distribution of the charged coal charged in the coke oven in real time. An object of the present invention is to provide an automatic particle size analyzer for coke oven charged coal, which automatically collects coal and analyzes the particle size of the collected coal.

상기와 같은 목적을 달성하기 위한 본 발명의 코크스오븐 장입탄의 입도 자동분석장치는, 장입탄을 수송하는 콘베이어벨트(1)상에서 헤머샘플러(2)에 의해 상기 장입탄의 시료가 샘플링되고, 채취된 상기 시료는 하향되는 시료 수송관(3)을 통해 시료진동 공급기(4)를 거쳐 체(5)로 공급되어 분석기 분석용으로 적합한 입도로 선별된 후, 시료 분급기(6)를 통해 분석에 필요한 양만 분급되어 입도분석기(7)에서 입도분포가 분석, 측정되며, 측정된 데이터는 컴퓨터시스템에 저장되는 것을 특징으로 한다.In order to achieve the above object, an automatic particle size analyzer for coke oven charging coal according to the present invention is sampled and collected by a hemer sampler (2) on a conveyor belt (1) for transporting charging coal. The sample is supplied to the sieve (5) through the sample transport pipe (3) through the downward sample transport pipe (3) is selected to a particle size suitable for analyzer analysis, and then analyzed by the sample classifier (6) Only the necessary amount is classified and the particle size distribution is analyzed and measured in the particle size analyzer 7, and the measured data is stored in a computer system.

이하, 본 발명에 따른 코크스오븐 장입탄의 입도 자동분석장치를 도 1에 의거하여 설명하면 다음과 같다.Hereinafter, an automatic particle size analysis apparatus for coke oven charging coal according to the present invention will be described with reference to FIG. 1.

먼저, 실시간으로 장입탄의 입도를 분석하기 위해서는 공정상에서 장입탄을 자동 샘플링하여야 하는데, 본 발명에서는 장입탄을 수송하는 콘베이어벨트(1)상에서 장입탄을 자동으로 샘플링할 수 있도록 헤머샘플러(2)를 설치한다.First, in order to analyze the particle size of the charged coal in real time, it is necessary to automatically sample the charged coal in the process. In the present invention, the hammer bomber 2 can be automatically sampled on the conveyor belt 1 for transporting the charged coal. Install it.

헤머샘플러(2)는 원하는 시간에 일정량의 장입탄인 석탄을 채취하여 후술하는 입도분석기(7)로 보내주는 역할을 한다. 일단, 헤머샘플러(2)에 의해 채취된 장입탄은 하향되는 시료 수송관(3)을 통해 시료진동 공급기(4)를 거쳐, 샘플링된 시료중에 포함된 크기가 큰 이물질 및 입도가 분석기 분석용으로 적합하지 않는 크기를 걸러 주는 체(sieve)(5)를 거치게 된다.The hammer sampler 2 serves to collect coal of a predetermined amount of coal at a desired time and send it to the particle size analyzer 7 described later. First, the coal collected by the hammer sampler 2 passes through the sample oscillation feeder 4 through the sample transport pipe 3 downward, and the large foreign matter and particle size contained in the sampled sample are used for analyzer analysis. A sieve (5) is used to filter out unsuitable sizes.

체(5)를 거친 후에는 시료 분급기(6)를 통해 입도분석기(7)에서 필요되는 시료량만이 분급되어 입도분석기(7)로 보내진다.After passing through the sieve 5, only the sample amount required by the particle size analyzer 7 is classified through the sample classifier 6 and sent to the particle size analyzer 7.

전술한 각 전처리 과정을 거친 후 최종적으로 입도분석기(7)에 시료가 도착 하면, 건식 레이저 회절법에 의하여 장입탄의 입도분포가 분석, 측정되게 되며, 측정된 데이터는 자동으로 컴퓨터시스템(미도시)에 저장되고 원하는 형태의 자료로 가공되어 활용되게 된다.When the sample finally arrives at the particle size analyzer 7 after each pretreatment process described above, the particle size distribution of the loaded coal is analyzed and measured by a dry laser diffraction method, and the measured data is automatically a computer system (not shown). ) Is stored and processed into data of the desired type.

여기서, 각 요소파트에서 불필요하게 버려지거나 분석이 완료된 장입탄 시료는 원공정으로 배출관(8)을 통해 자동으로 보내지게 된다.Here, the charged coal sample that is unnecessarily discarded or analyzed in each urea part is automatically sent through the discharge pipe 8 in the original process.

본 발명에 따르면, 헤머샘플러(2) 및 레이저 회절법을 이용한 입도분석기(7)를 포함하는 장치의 조작 및 제어는 컴퓨터시스템에 의해 자동으로 행해진다. 즉, 헤머샘플러(2)의 시료 샘플링주기는 컴퓨터시스템에 입력된 시간에 따라 일정 시간 간격으로 실시되며 전처리 과정을 거친 후 자동으로 입도분석되고 측정된 결과는 컴퓨터시스템에 자동 저장되어 데이터로서 관리되게 된다.According to the present invention, the operation and control of the apparatus including the hemmer sampler 2 and the particle size analyzer 7 using the laser diffraction method are automatically performed by a computer system. That is, the sample sampling cycle of the hammer sampler 2 is carried out at a predetermined time interval according to the time input to the computer system. After the pretreatment process, the particle size analysis is automatically performed and the measured result is automatically stored in the computer system to be managed as data. do.

본 발명에 따르면, 종래 수동작업으로 이루어졌던 입도분석이 자동으로 이루어지게 됨에 따라, 인력소요를 감소할 수 있고, 빠르고 안정적인 입도분석으로 코크스오븐의 조업안정을 꾀할 수 있으며, 코크스의 품질향상 및 건류소비열량 저감의 효과가 달성될 수 있다.According to the present invention, as the particle size analysis that is conventionally made by manual operation is automatically performed, manpower consumption can be reduced, and the operation stability of the coke oven can be improved by fast and stable particle size analysis, and the quality of the coke is improved and dried. The effect of reducing the calories consumed can be achieved.

Claims (1)

장입탄을 수송하는 콘베이어벨트(1) 상에 설치되어 상기 장입탄의 시료를 샘플링하는 헤머샘플러(2);Hemer sampler (2) installed on the conveyor belt (1) for transporting the charge coal to sample the sample of the charge coal; 샘플링된 시료를 상기 헤머샘플러(2)로부터 전달받은 후, 전달받은 시료로부터 분석기 분석에 적합한 입도의 시료를 선별하는 체(5);A sieve (5) for receiving a sampled sample from the hemer sampler (2) and then selecting a sample having a particle size suitable for analyzer analysis from the received sample; 선별된 시료를 상기 체(5)로부터 전달받아 분급하는 시료 분급기(6); 및A sample classifier (6) for receiving and classifying the selected sample from the sieve (5); And 분급된 시료를 상기 시료 분급기(6)로부터 전달받은 후 상기 분급된 시료의 입도분포를 분석 및 측정하고, 그 결과를 컴퓨터시스템으로 전송하는 입도분석기(7);를 포함하는 것을 특징으로 하는 코크스오븐 장입탄의 입도 자동분석장치.A particle size analyzer 7 which receives the classified sample from the sample classifier 6 and analyzes and measures the particle size distribution of the classified sample and transmits the result to a computer system. Automatic particle size analyzer for oven charcoal.
KR1020020083459A 2002-12-24 2002-12-24 Automatic apparatus for particle size analysis of charging coal in coke oven KR100954279B1 (en)

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KR101142483B1 (en) 2004-12-29 2012-05-07 주식회사 포스코 Apparatus for analysis cocks

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