KR20000041661A - Method for estimating total amount of generation of coke oven gas during periodic maintenance of coke furnace - Google Patents
Method for estimating total amount of generation of coke oven gas during periodic maintenance of coke furnace Download PDFInfo
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- 239000000571 coke Substances 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000000737 periodic effect Effects 0.000 title claims abstract description 11
- 238000012423 maintenance Methods 0.000 title abstract 3
- 238000003763 carbonization Methods 0.000 claims abstract description 35
- 238000000197 pyrolysis Methods 0.000 claims abstract description 12
- 239000003034 coal gas Substances 0.000 claims description 92
- 230000008439 repair process Effects 0.000 claims description 32
- 239000003245 coal Substances 0.000 claims description 20
- 238000011068 loading method Methods 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 238000000746 purification Methods 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 21
- 238000007796 conventional method Methods 0.000 description 5
- 238000001035 drying Methods 0.000 description 5
- 239000000446 fuel Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000013277 forecasting method Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000001665 lethal effect Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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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
- G01N33/225—Gaseous fuels, e.g. natural gas
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
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Abstract
Description
본 발명은 코크스 로의 각 탄화실에서 석탄 장입 후 배출까지 발생하는 석탄가스의 발생량 패턴을 이용하여 전체 코크스 로 배터리(Battery)로 부터 발생하는 석탄가스의 발생량을 예측하는 방법에 관한 것으로서, 보다 상세하게는 감산 및 설비에 문제발생등의 가동율 변동시에 코크스로의 온도변화 및 이미 장입된 석탄의 건류시간변동을 고려하여 코크스로 배터리에서의 석탄가스 발생량을 예측하는 방법에 관한 것이다.The present invention relates to a method for estimating the amount of coal gas generated from the entire coke oven battery by using the amount of coal gas generated from the carbonization chamber of the coke oven to the discharge after coal charging. This paper describes the method of predicting the amount of coal gas generated in the coke oven battery in consideration of the temperature change of the coke oven and the drying time of the coal already charged when the operation rate is changed, such as a reduction or a problem in the equipment.
코크스 로는 축열실의 상부에 탄화실과 연소실이 있고 탄화실에 장입된 석탄은 양측의 연소실로 부터 로벽을 사이에 두고 건류되어 코크스화된다.The coke furnace has a carbonization chamber and a combustion chamber at the top of the heat storage chamber, and the coal charged in the carbonization chamber is carbonized by distilling through the furnace walls from both combustion chambers.
코크스로에서는 회분식으로 석탄 장입, 건류 및 코크스 배출이 행하여 있으며 회분공정의 간격은 가동율에 따라 일정하도록 조업이 실시되고 있다.In the coke oven, coal charging, dry distillation and coke discharge are carried out in a batch manner, and the operation of the coking furnace is carried out so that the interval of the batching process is constant according to the operation rate.
단일 탄화실에 석탄가스 발생량은 경과시간에 따라 큰폭으로 변동한다.Coal gas generation in a single carbonization chamber fluctuates greatly with elapsed time.
즉, 석탄 장입 직후 탄화실 벽측 석탄의 급속한 건류에 의하여 다량의 가스가 발생하고 건류 후반(700∼800℃)에 수소의 방출에 의하여 피크가 나타난다.That is, a large amount of gas is generated by rapid dry distillation of carbon in the carbonization chamber wall immediately after the coal charging, and a peak occurs due to the release of hydrogen in the late dry distillation (700-800 ° C.).
따라서, 코크스 로에서 코크스의 배출 간격은 가동율에 대하여 대체로 일정하기 때문에 코크스 로 배터리에서의 석탄가스 발생총량은 대체로 일정하다고 할수 있다.Therefore, it can be said that the total amount of coal gas generated in the coke oven battery is generally constant because the coke discharge intervals in the coke oven are generally constant with respect to the operation rate.
코크스 로의 석탄장입-코크스 배출 작업은 정기수리시 수 시간동안 중단되며 이러한 경우 코크스 로 배터리에서의 석탄가스 발생총량이 크게 변동하게된다.Coal-loading of coke furnaces-Coke discharge operations are interrupted for several hours during regular repairs, in which case the total amount of coal gas generated in the coke oven battery is greatly changed.
석탄가스 발생량의 변동은 후 공정인 가스정제 공정에 불균일한 부하를 미칠뿐만 아니라 석탄가스를 연료로 사용하고 있는 공장에 영향을 끼친다.The fluctuation of coal gas generation not only has a non-uniform load on the post-refining gas purification process but also affects a plant using coal gas as fuel.
뿐만 아니라 고로 등 타 공정에서 정기수리등의 감산요인이 발생할 경우에는 수주간 코크스로의 가동율을 낮추어야 하며 이러한 경우 제철소내 연료로서의 석탄가스 공급계획에 차질을 빚지 않을 졍도의 적정가동율을 유지하여야 한다.In addition, if reduction factors such as regular repairs occur in other processes such as blast furnaces, the operation rate of the coke oven should be lowered for several weeks, and in such a case, an appropriate operation rate of the degree that will not interfere with the coal gas supply plan as a fuel in steel mills should be maintained. .
그러나, 현재 석탄가스 공급계획 차원에서 석탄가스 발생총량의 변화를 정확히 파악하기는 어려운 실정이다.However, it is difficult to pinpoint changes in the total amount of coal gas generated from the current coal gas supply plan.
석탄가스 발생량을 추정하는 방법으로는 온도의 함수로서의 석탄가스 발생량을 평가하고 단일 탄화실에서 건류경과 시간의 함수로서의 온도 프로파일(Profile)을 평가한다.As a method of estimating coal gas generation, the coal gas generation as a function of temperature is evaluated and the temperature profile as a function of dry flow and time in a single carbonization chamber is evaluated.
두 평가치를 조합하여 건류개시후 임의의 두 경과시간 사이에 탄화실내 각위치에서 발생하는 석탄가스의 발생량을 구한 후에 탄화실 전체에 대하여 합산하여 단일 탄화실에서 시간 경과에 따른 석탄가스 발생량을 계산한다.Combining the two estimates, the amount of coal gas generated at each location within the carbonization chamber is calculated between two elapsed time periods after the start of dry distillation, and then summed over the entire carbonization chamber to calculate the amount of coal gas generated over time in a single carbonization chamber. .
이 값을 배터리의 장입 스케줄과 조합하여 배터리에서 시간 경과에 따른 석탄가스 총발생량을 구한다.(일본특허공개 60-240789)This value is combined with the charging schedule of the battery to find the total amount of coal gas generated over time in the battery. (Japanese Patent Laid-Open No. 60-240789)
일반적으로, 장입스케줄이 18시간일 경우 총 건류시간은 17시간이고 나머지는 치시간이라하여 코크스 압출전에 1시간의 공백을 둔다.In general, if the charging schedule is 18 hours, the total dry time is 17 hours and the rest is Q hour, leaving one hour before coke extruding.
도 1에는 단일 탄화실에서 시간경과에 따른 석탄가스 발생량이 나타나 있다.석탄장입 후 1시간까지 발생하는 석탄가스량을 F(1), 1시간 ∼2시간 사이에 발생하는 석탄가스량을 F(2)..... 16시간 ∼17시간 사이에 발생하는 석탄가스량을 F(17)이라하면 tn시각에 배터리내 석탄가스의 총발생량 G(tn)은 tn의 17시간 전인 tn-17부터 tn-1까지 장입한 탄화실에서 발생하는 석탄가스량의 총 합이므로 하기 식(1)과 같이 나타낼수 있다.Figure 1 shows the amount of coal gas generated over time in a single carbonization chamber. F (1) shows the amount of coal gas generated up to 1 hour after coal loading and F (2) shows the amount of coal gas generated between 1 hour and 2 hours. ..... 16 hours to 17 if referred to as the coal gas that occurs between the time F (17) is t n t n-17 17, before time t n the total amount G (t n) of the battery within the coal gas at the time Up to t n-1 , the sum of the amount of coal gas generated in the carbonization chamber can be expressed by the following equation (1).
G(t2)= F(1)X(t1)+F(2)X(t-0)+.....+F(17)X(t-15)G (t 2 ) = F (1) X (t 1 ) + F (2) X (t- 0 ) + ..... + F (17) X (t -15 )
........................................................................................
G(tn)= F(1)X(tn-1)+F(2)X(tn-2)+.....+F(17)X(tn-17)G (t n ) = F (1) X (t n-1 ) + F (2) X (t n-2 ) + ..... + F (17) X (t n-17 )
단, G(tn) : tn시각에 단일 배터리에서 발생하는 석탄가스의 총량(Nm3)However, G (t n ): Total amount of coal gas generated from a single battery at time t n (Nm 3 )
F(t) : 석탄장입 후 단일 탄화실에서 t-1∼t동안 발생하는 석탄가스량 (Nm3/단일 탄화실)F (t): The amount of coal gas generated during t-1 to t in a single carbonization chamber after coal loading (Nm 3 / single carbonization chamber)
X(tn): tn시각에 장입한 탄화실 개수(탄화실)X (tn): Number of carbonization chambers charged at tn time (carbonization chamber)
코크스공장의 정기 수리시에는 연료 혼합가스량을 변화시켜서 탄화실 온도를 조절함으로써 정기 수리시 석탄장입-코크스압출의 중단으로 인하여 발생하는 코크스의 과건류를 방지한다. 즉 장입온도를 낮춤으로써 이미 장입된 모든 석탄의 건류시간을 연장시킨다. 과건류는 코크스의 강도에 치명적인 영향을 미치므로 바림작하지 않다.In the regular repair of the coke plant, by controlling the carbonization chamber temperature by changing the amount of fuel mixture gas to prevent excessive dry flow of the coke generated by the interruption of the coal loading-coke extrusion during the regular repair. In other words, by lowering the charging temperature, the drying time of all the coals already charged is extended. Fruits are not expected because they have a lethal effect on the strength of coke.
상기 일본특허공보에서는 정기 수리기간 중에 변화되는 탄화실 온도를 고려하지 않고 있으므로, 석탄가스의 예측정도가 떨어지는 문제점이 있다.Since the Japanese Patent Publication does not consider the carbonization chamber temperature which is changed during the regular repair period, there is a problem that the prediction accuracy of coal gas is lowered.
본 발명자는 상기한 종래기술의 제반 문제점을 해결하기 위하여 연구및 실험을 행하고, 그 결과에 근거하여 본 발명을 제안하게 된 것으로서, 본 발명은 코크스 로의 정기수리시 탄화실 온도가 조절된다는 점을 이용하여 정기 수리기간중에 코크스로에 장입되어 있는 석탄의 가스발생량을 감소시키고 단일 탄화실에서의 총 석탄가스 발생량이 같아지도록 건류시간을 연장시킴으로써 보다 정도가 높은 석탄가스 발생량 예측방법을 제공하고자 하는데. 그 목적이 있다.The present inventors have conducted research and experiments to solve the above-mentioned problems of the prior art, and based on the results, the present invention proposes the present invention. The present invention utilizes the fact that the temperature of the carbonization chamber is adjusted during regular repair of the coke furnace. The aim is to provide a higher coal gas generation forecasting method by reducing the gas generation of coal charged into the coke oven during the regular repair period, and by extending the distillation time so that the total coal gas generation in the single carbonization chamber is the same. Its purpose is.
도 1은 단일 탄화실에서 시간경과에 따른 석탄가스의 발생량의 일례를 나타내는 그래프1 is a graph showing an example of the amount of coal gas generated over time in a single carbonization chamber;
도 2는 석탄의 건류시간이 확장되는 경우 본 발명에 따라 건류시간과 석탄가스 발생량과의 상관관계가 변화되는 모양을 나타내는 그래프Figure 2 is a graph showing the change in the relationship between the dry time and the amount of coal gas generated according to the present invention when the drying time of coal is extended
도 3은 7시간 정기수리시 석탄가스 발생량의 측정치와 종래방법을 적용한 경우의 예측치를 비교한 그래프Figure 3 is a graph comparing the measured value of coal gas generation amount during the regular repair for 7 hours and the predicted value when applying the conventional method
도 4는 7시간 정기수리시 석탄가스 발생량의 측정치와 본 발명을 적용한 경우의 예측치를 비교한 그래프4 is a graph comparing the measured value of coal gas generation amount during the 7-hour regular repair with the predicted value when the present invention is applied.
본 발명은 코크스 로 배터리로 부터 발생되는 석탄가스의 발생량을 예측하는 방법에 있어서,The present invention is a method for predicting the amount of coal gas generated from the coke oven battery,
코크스 로 정상조업시의 건류온도변화에 따른 석탄가스 발생량변화를 측정하여 코크스 로 정상조업시의 건류온도와 석탄가스 발생량과의 상관관계를 구하는 단계;Measuring the change in the amount of coal gas generated by the change of dry carbon temperature in the coke oven operation and obtaining a correlation between the dry gas temperature and the amount of coal gas produced in the normal operation of the coke oven;
코크스 로 정상조업시의 단위 탄화실에 대한 건류 경과시간과 탄화실 위치에 대한 온도 파일을 하기 식(2)의 전열식을 적분하여 구하는 단계;Integrating the heat transfer equation of Equation (2) to obtain a temperature file for the evaporation time of the carbonization unit and the carbonization chamber position for the unit carbonization chamber during the coke oven normal operation;
[여기서, ρ: 장입밀도(kgm-3)[Where: ρ: loading density (kgm -3 )
C:석탄의 비열(Jkg-1K)C: specific heat of coal (Jkg -1 K)
K:열전도도(Wm-1K-1)K: Thermal Conductivity (Wm -1 K -1 )
rgas:가스의 물질흐름(kgm-2s-1)r gas : Mass flow of gas (kgm -2 s -1 )
cgas:가스의 비열(Jkg-1K-1)c gas : Specific heat of gas (Jkg -1 K -1 )
ρ0:초기 장입밀도(kgm-3)]ρ 0 : initial loading density (kgm -3 )]
상기한 두 상관관계를 조합하여 코크스 로 정상조업시의 건류시간과 석탄가스 발생량과의 상관관계를 구하는 단계;Combining the above two correlations to obtain a correlation between the amount of dry time and the amount of coal gas generated during normal operation of the coke oven;
정기수리기간동안에는 상기한 건류시간과 석탄가스 발생량과의 상관관계에서 석탄가스 발생량에 건류시간/(건류시간 + 정수시간)의 값을 곱한 석탄가스 총발생량이 상기 정상조업시 석탄가스 총발생량과 같아 지도록 건류시간을 정수시간 만큼 비례적으로 확장시켜 정기수리기간동안의 건류시간과 석탄가스 발생량과의 상관관계를 구하는 단계; 및During the regular repair period, the total amount of coal gas generated by multiplying the amount of coal gas generated by the amount of dry time / (dry time + water purification time) in the correlation between the dry time and the coal gas generation amount is equal to the total amount of coal gas generated during the normal operation. Expanding the dry distillation time proportionally by a purified time so as to obtain a correlation between the dry distillation time and the amount of coal gas generated during the periodic repair period; And
정기수리기간동안에는 상기한 정기수리기간동안의 건류시간과 석탄가스 발생량과의 상관관계를 이용하여 코크스 로 탄화실의 석탄가스 발생량을 예측하는 단계를 포함하여 구성되는 코크스 로 정기수리시 석탄가스 발생량 예측방법에 관한 것이다.During the regular repair period, predict the amount of coal gas generated during the coke oven periodic repair, including the step of estimating the coal gas generated in the coke oven carbonization chamber by using the correlation between the dry time and the coal gas generation during the periodic repair period. It is about a method.
이하, 본 발명에 대하여 상세히 설명한다.EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated in detail.
본 발명은 코크스 로 배터리로 부터 발생되는 석탄가스의 발생량을 예측하는 방법에 있어서, 코크스 로의 정기수리시 코크스로 온도가 감소함에 따라 석탄가스의 발생패턴이 정기수리 시간동안 변화함을 고려하여 보다 정도가 높은 석탄가스 발생량 예측하는 방법에 관한 것이다.The present invention is a method for estimating the amount of coal gas generated from the coke oven battery, in consideration of the change pattern of coal gas during the regular repair time as the coke oven temperature decreases during regular repair of the coke oven Is about how to predict high coal emissions.
본 발명에 따라 석탄가스 발생량을 예측하기 위해서는 코크스 로 정상조업시의 건류 온도변화에 따른 석탄가스 발생량변화를 측정하여 코크스 로 정상조업시의 건류온도와 석탄가스 발생량과의 상관관계를 구하고, 또한 코크스 로 정상조업시의 단위 탄화실에 대한 건류 경과시간과 탄화실 위치에 대한 온도 파일을 하기 식(2)의 전열식을 적분하여 구한다.In order to predict the amount of coal gas generated according to the present invention, the change of the amount of coal gas generated according to the change of dry gas temperature in the coke furnace normal operation is obtained, and the correlation between the dry gas temperature and the amount of coal gas generated in the coke furnace normal operation is also obtained. The temperature file for the evaporation time of dry carbon and the temperature of the carbonization chamber for the unit carbonization chamber in the normal operation is obtained by integrating the heat transfer formula of Equation (2) below.
[수학식 2][Equation 2]
[여기서, ρ: 장입밀도(kgm-3)[Where ρ: charge density (kgm -3 )
C:석탄의 비열(Jkg-1K)C: specific heat of coal (Jkg -1 K)
K:열전도도(Wm-1K-1)K: Thermal Conductivity (Wm -1 K -1 )
rgas:가스의 물질흐름(kgm-2s-1)r gas : Mass flow of gas (kgm -2 s -1 )
cgas:가스의 비열(Jkg-1K-1)c gas : Specific heat of gas (Jkg -1 K -1 )
ρ0:초기 장입밀도(kgm-3)]ρ 0 : initial loading density (kgm -3 )]
다음에, 상기한 두 상관관계를 조합하여 코크스 로 정상조업시의 건류시간과 석탄가스 발생량과의 상관관계를 구한다.Next, the above two correlations are combined to find a correlation between the dry time and the amount of coal gas generated in the coke oven operation.
상기한 코크스 로 정상조업시의 건류시간과 석탄가스 발생량과의 상관관계는 통상의 방법에 의해서 구해질 수 있다The correlation between the dry time and the amount of coal gas generated in the normal operation of the coke oven can be obtained by a conventional method.
정기수리기간동안에는 상기한 코크스 로 정상조업시의 건류시간과 석탄가스 발생량과의 상관관계에서 석탄가스 발생량에 건류시간/(건류시간 + 정수시간)의 값을 곱한 석탄가스 총발생량이 도 2에 나타나 있는 바와 같이, 상기 정상조업시의 석탄가스 총발생량과 같아 지도록 건류시간을 정수시간 만큼 비례적으로 확장시켜 정기수리기간동안의 건류시간과 석탄가스 발생량과의 상관관계를 구하는데, 이에 대하여 설명하면 다음과 같다.During the regular repair period, the total amount of coal gas generated by multiplying the amount of coal gas generated by the amount of dry time / (dry time + water purification time) in the correlation between the dry time and the amount of coal gas generated during normal operation of the coke oven is shown in FIG. As can be seen, the correlation between the dry distillation time during the regular repair period and the coal gas generation amount during the regular repair period is obtained by proportionally extending the dry distillation time by the purified time so as to be equal to the total coal gas generation amount in the normal operation. As follows.
단위 탄화실에서 시간 경과에 따른 석탄가스 발생패턴을 이용하여 전체 배터리에서의 석탄가스 발생패턴을 구하기 위하여 그 시간에 장입되어 있는 코크스로에서 발생하는 석탄가스량의 총 합을 정기수리시 코크스로 온도의 감소를 고려하여 구한다. 정기수리시에는 코크스 가열용 연료가스의 양을 줄이기 때문에 로의 온도가 감소하므로 정기 수리 동안에 장입되어 있는 석탄에 대한 석탄가스의 발생량은 줄어들게 되며, 그 값은 건류시간/(건류시간+정수시간)을 곱한 값이된다.In order to calculate the coal gas generation pattern in the whole battery using the coal gas generation pattern over time in the unit carbonization chamber, the total sum of the amount of coal gas generated in the coke oven charged at the time is determined. Obtain by considering the reduction. During regular repairs, the temperature of the furnace decreases due to the reduction of the amount of fuel gas for coke heating, and thus the amount of coal gas generated for the coals charged during regular repairs is reduced. Is multiplied.
석탄장입 스케줄링에 맞추어 석탄이 장입된 코크스로의 석탄가스 발생량이 배터리에서의 석탄가스 총 발생량에 미치는 영향의 일례를 하기 표 1에 나타내었다. 하기 표 1에서 건류시간은 5시간, 정기수리(장입중지)시간은 2시간이고 시간당의 1개의 코크스 로에만 석탄을 장입한 경우를 가정한 예이다.Table 1 below shows an example of the effect of the amount of coal gas generated in the coke furnace loaded with coal according to the coal charging schedule on the total amount of coal gas generated in the battery. In Table 1 below, the dry time is 5 hours, the regular repair (load stop) time is 2 hours, and it is an example assuming that coal is charged into only one coke oven per hour.
F()는 어느 시각에 시간당 석탄가스 발생량을 나타내는 함수이다. 예를들면, F5(1,3)은 총 건류시간이 5시간이고 1시에 장입한 석탄이 장입후 2시간 ∼3시간 사이에 발생한 석탄가스량을 나타낸다.F () is a function that shows the amount of coal gas generated per hour at any time. For example, F5 (1,3) represents the amount of coal gas generated during the total dry distillation time of 5 hours and the coal charged at 1:00 between 2 hours and 3 hours after charging.
하기 표 1로 부터 3∼4시 사이에 배터리내에서 발생한 석탄가스 총량은 하기 식(3)에 의해 구해질 수 있다.The total amount of coal gas generated in the battery between Tables 1 and 3 to 4 hours can be obtained by the following equation (3).
본 발명에서는 정기수리시에는 하기 식(3)에 의해 구해진 석탄가스 총량에 건류시간/(건류시간+정수시간)을 곱한 값을 이용한다.In the present invention, at the time of periodical repair, a value obtained by multiplying the total amount of coal gas obtained by the following equation (3) with the amount of dry time / (dry time + integer time) is used.
G(4): 3∼4시 사이에 Battery내에서 발생한 석탄가스 총량G (4): Total amount of coal gas generated in the battery between 3 and 4 o'clock.
F5(-1,5): -1시에 장입한 석탄에서 장입후 4시간 ∼5시간 사이에 발생한 석 탄가스량F5 (-1,5): The amount of coal gas generated between -4 hours and 5 hours after charging
F5(0,4): 0시에 장입한 석탄에서 장입후 3시간∼4시간 사이에 발생한 석탄 가스량F5 (0,4): The amount of coal gas generated between 3 hours and 4 hours after charging
F5(1,3): 1시에 장입한 석탄에서 장입후 2시간∼3시간 사이에 발생한 석탄 가스량F5 (1,3): The amount of coal gas generated between 1 hour and 3 hours after charging
F5(2,2): 2시에 장입한 석탄에서 장입후 1시간 ∼2시간 사이에 발생한 석 탄가스량F5 (2,2): The amount of coal gas generated between 1 and 2 hours after charging
F5(3,1): -3에 장입한 석탄에서 장입후 0시간 ∼1시간 사이에 발생한 석탄 가스량F5 (3,1): The amount of coal gas generated between 0 hours and 1 hour after charging
본 발명에서는 정기수리기간동안에는 상기한 정기수리기간동안의 건류시간과 석탄가스 발생량과의 상관관계를 이용하여 코크스 로 탄화실의 석탄가스 발생량을 예측하게 된다.In the present invention, during the periodic repair period, the amount of coal gas generated in the coke oven carbonization chamber is predicted using the correlation between the dry time and the coal gas generation amount during the periodic repair period.
이하, 본 발명을 실시예를 통하여 보다 구체적을 설명한다.Hereinafter, the present invention will be described in more detail with reference to Examples.
실시예Example
건류시간은 5시간 및 정기수리시간은 2시간이고 시간당의 1개의 코크스로에만 석탄을 장입한 경우에 대하여 종래방법 및 본 발명을 적용하여 석탄가스 발생량을 예측하고, 그 결과를 도 3및 도 4에 나타내었다.The drying time is 5 hours and the regular repair time is 2 hours, and the coal gas is predicted by applying the conventional method and the present invention to the case where coal is charged into only one coke oven per hour, and the results are shown in FIGS. 3 and 4. Shown in
도 3에는 종래방법을 적용한 결과를, 그리고 도 4에는 본 발명을 적용한 결과를 나타낸다.3 shows the results of applying the conventional method, and FIG. 4 shows the results of applying the present invention.
본 실험에서는 시간당의 1개의 코크스로에만 석탄을 장입하였다.In this experiment, coal was charged into only one coke oven per hour.
본 발명을 적용한 경우에는 정기수리 기간중 석탄가스 발생량을 감소시키고 석탄가스 발생량이 감소한 만큼 단일 탄화실의 가스 발생량의 합이 같아지도록 건류시간을 연장하였다.In the case of applying the present invention, the drying time is extended so that the amount of generated gas in the single carbonization chamber is the same as the amount of generated coal gas is reduced during the regular repair period and the amount of generated coal gas is reduced.
도 3및 도 4에 나타난 바와 같이, 본 발명을 적용하여 석탄가스 발생량을 예측하는 경우가 종래방법을 적용하여 석탄가스 발생량을 예측하는 경우 보다 석탄가스 발생량 예측치의 오차가 적음을 알 수 있다.As shown in FIG. 3 and FIG. 4, it can be seen that the case of predicting the amount of coal gas generated by applying the present invention is smaller in the error of predicted amount of coal gas generated than when predicting the amount of coal gas generated by applying the conventional method.
상술한 바와같이, 본 발명은 가스 발생량의 탄력적인 수급관리를 수행함으로써 석탄가스를 에너지원으로 사용하는 설비의 안정적이고 계획적인 조업을 가능하게 하는 효과가 있는 것이다.As described above, the present invention has an effect of enabling stable and planned operation of a facility using coal gas as an energy source by performing elastic supply and demand management of gas generation amount.
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| JPS57121088A (en) * | 1981-01-21 | 1982-07-28 | Kansai Coke & Chem Co Ltd | Determination and estimation of the total volume of gas produced in coke furnace |
| JPS60240789A (en) * | 1984-05-16 | 1985-11-29 | Kawasaki Steel Corp | Method for forecasting change of coke oven gas with time |
| JPH061981A (en) * | 1992-06-19 | 1994-01-11 | Sumitomo Metal Ind Ltd | Method for predicting volume of produced gas in coke oven |
| KR960013603A (en) * | 1994-10-20 | 1996-05-22 | 오정무 | Specific gravity separation method of waste plastic |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57121088A (en) * | 1981-01-21 | 1982-07-28 | Kansai Coke & Chem Co Ltd | Determination and estimation of the total volume of gas produced in coke furnace |
| JPS60240789A (en) * | 1984-05-16 | 1985-11-29 | Kawasaki Steel Corp | Method for forecasting change of coke oven gas with time |
| JPH061981A (en) * | 1992-06-19 | 1994-01-11 | Sumitomo Metal Ind Ltd | Method for predicting volume of produced gas in coke oven |
| KR960013603A (en) * | 1994-10-20 | 1996-05-22 | 오정무 | Specific gravity separation method of waste plastic |
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| KR20020052831A (en) * | 2000-12-26 | 2002-07-04 | 신현준 | Method for predicting COG production |
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