KR100270097B1 - The recovering method of converter this fleeting gas - Google Patents

The recovering method of converter this fleeting gas Download PDF

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Publication number
KR100270097B1
KR100270097B1 KR1019960070082A KR19960070082A KR100270097B1 KR 100270097 B1 KR100270097 B1 KR 100270097B1 KR 1019960070082 A KR1019960070082 A KR 1019960070082A KR 19960070082 A KR19960070082 A KR 19960070082A KR 100270097 B1 KR100270097 B1 KR 100270097B1
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South Korea
Prior art keywords
converter
gas
holder
blast furnace
product gas
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KR1019960070082A
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Korean (ko)
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KR19980051208A (en
Inventor
고대권
김경태
진락권
강신현
Original Assignee
이구택
포항종합제철주식회사
신현준
재단법인포항산업과학연구원
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Priority to KR1019960070082A priority Critical patent/KR100270097B1/en
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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/38—Removal of waste gases or dust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/001—Extraction of waste gases, collection of fumes and hoods used therefor
    • F27D17/002—Details of the installations, e.g. fume conduits or seals
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C2100/00—Exhaust gas
    • C21C2100/06—Energy from waste gas used in other processes

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)

Abstract

PURPOSE: A method and system for recovering converter gas by applying pressure to converter gas generated in the blowing process of a converter to the blast furnace gas pressure through a booster and supplying to a blast furnace gas pipe are provided, which enable to make use of converter gas effectively, save energy and cause equipment to be operated stably. CONSTITUTION: This method comprises the steps of: detecting the generation of converter gas exceeded a gas storage amount fixed in a holder; increasing the excess converter gas to blast furnace gas pressure through a booster; and supplying the pressured converter gas to a blast furnace gas pipe until a gas storage amount in the holder attains a suitable level. The recovering system for converter gas comprises a holder(10) attached with a first discharge pipe(20) with a booster(24) for storing converter gas and the first discharge pipe equipped with a check valve(26) and connected to a blast furnace gas pipe(40).

Description

방산되는 전로부생가스의 회수방법 및 그시스템Recovery method and system of the discharged off-gas by-product

본 발명은 제철소의 제강공정등에서의 산소취련시 발생되는 다량의 가스인 전로부생가스(LDG, Linze Donawitz Gas)를 회수하여 사용하기 위한 방법 및 그 장치에 관한 것으로서, 보다 상세하게는 일정용량의 홀더내로 유입되어 사용처로 보내지는 전로부생가스를 별도의 부스터를 이용하여 승압시켜 고로가스배관측으로 공급함으로서 잉여 전로부생가스의 방산이 억제되는 상태인 적정레벨에 홀더가 유지될 수 있도록 한 방산되는 전로부생가스의 회수방법 및 그 장치에 관한 것이다.The present invention relates to a method and apparatus for recovering and using a converter gas (LDG, Linze Donawitz Gas), which is a large amount of gas generated during oxygen scavenging in a steelmaking process of a steel mill, and more particularly, a holder having a predetermined capacity. By using a separate booster, the converter by-products that are introduced into and sent to the place of use are boosted and supplied to the blast furnace gas piping side so that the holder can be maintained at an appropriate level at which dissipation of excess converter by-products is suppressed. The present invention relates to a gas recovery method and an apparatus thereof.

일반적으로 제철소의 제강공정에서 취련사이클은 고철장입, 용선장입, 산소취련, 샘플링(Sampling), 분석대기, 출강, 배제로 이루어지는 것으로서; 산소취련중 초기 및 말기에 생성되는 전로부생가스는 대체로 연료로 사용되기에는 부적절하여 방산되어지는 것이지만, 중기에 발생되는 전로부생가스는 연료로서 사용되기에 적합한 성분으로 이루어져 회수되어 사용된다. 이렇게 회수된 전로부생가스의 주요성분 및 물성은 하기 표 1에 나타낸 바와같으며, 이는 홀더에 저장된후 제철소내의 여러공정, 주로 발전소에 공급되어 사용되고 있다.In general, in the steelmaking process of steel mills, the scavenging cycle is composed of scrap metal loading, molten iron loading, oxygen blowing, sampling, waiting for analysis, tapping, and exclusion; The converter by-product gas generated during the initial and end of the oxygen extraction is generally inadequately dissipated to be used as fuel, but the converter by-product gas generated in the middle is composed of components suitable for use as fuel and is recovered and used. The main components and physical properties of the recovered by-product by-products are as shown in Table 1, which is stored in a holder and used in various processes in a steel mill, mainly power plants.

이러한 홀더는 일반적으로 전로부생가스를 저장할수 있도록 원통형 용기로 구성되며, 그 내부에는 저장되는 전로부생가스의 용량변화에 따라 상하방향으로 이동될수 있는 피스톤부재가 설치되어 있는 한편 그 내부의 가스레벨을 간편하게 알수 있도록 레벨변화에 따라 승하강되는 피스톤의 위치를 감지하는 레벨감지기가 설치되어 상기 레벨감지기에 의해서 상기 피스톤의 위치를 감지하여 홀더내에 저장된 가스량을 측정할수 있다.The holder is generally composed of a cylindrical container to store the converter by-product gas, the inside is provided with a piston member that can be moved in the vertical direction in accordance with the change in the capacity of the converter by-product stored therein while the gas level inside the A level sensor for detecting the position of the piston which is raised and lowered according to the level change is installed so that it can be easily seen, and the position of the piston can be detected by the level sensor to measure the amount of gas stored in the holder.

따라서, 상기 레벨감지기에 의해서 가스의 배출흐름을 제어하여 상기 홀더내의 가스용량을 항상 사전에 설정된 값으로 항상 일정하게 유지할수 있는 것이다.Therefore, the gas flow rate is controlled by the level sensor so that the gas capacity in the holder is always kept constant at a preset value.

통상적으로 홀더내로 들어오는 전로부생가스의 양은 도 2에 도시한 바와같이 "A"로 나타나고, 부스터를 통하여 발전소로 공급되는 전로부생가스의 양은 "B"로 나타나며, 따라서 홀더내의 전로부생가스의 잔류레벨은 "C"로 나타나게 되며, 이에 의하면 홀더의 용량이 일정정도로 설정되어 있는 관계로 잔류레벨(C)이 그 용량을 초과하게 되는 경우에는 그를 대기로 방산하게 되고, 이러한 원인이 발생하게 되는 원인으로서는 2개의 전로에서 동시에 취련이 행하여져 홀더로 인입되는 전로부생가스의 양(A)이 크게 증가하는 경우, 전로부생가스의 사용처인 발전소에서의 사용량이 적어 "B"가 적정수준이하에 있게 되는 경우, 및 전로부생가스 회수설비에 고장등이 발생하여 압송설비의 성능이 저하되는 경우등이다.Typically, the amount of converter by-product gas entering the holder is represented by "A" as shown in Figure 2, the amount of converter by-product gas supplied to the power plant through the booster is represented by "B", and therefore the residual level of converter by-product gas in the holder Is represented by "C". According to this, when the capacity of the holder is set to a certain level, when the residual level (C) exceeds the capacity, it is dissipated to the atmosphere. In the case where blowing is performed simultaneously in two converters and the amount of converter by-product gas (A) flowing into the holder is greatly increased, when the amount of use of the converter by-product gas is used in a power plant where the use of converter by-product gas is small, " B " And a failure of the converter by-product gas recovery facility and the performance of the pumping facility decrease.

이러한 대부분의 경우 홀더의 용량을 증가시키거나, 수요처를 증대시킴으로서 방산을 막을 수는 있으나, 경제적인 이유 및 현실적인 이유 등에 의하여 그는 매우 곤란하게 된다.In most of these cases, dissipation can be prevented by increasing the capacity of the holder or increasing the demand, but for economic reasons and practical reasons, he becomes very difficult.

즉, 홀더의 용량을 증가시키는 것은 막대한 예산과 그를 설치하기 위한 거대한 설치공간이 필요하고, 수요처를 증가시기는 것에 있어서도 종래에 사용되는 부스터에서 유량과다에 의한 부스턴 전단의 부압발생을 야기시키며, 비연속적인 전로부생가스의 발생으로 인하여 발전소에서의 추가적인 전로부생가스를 이용하기 위한 버너의 설치는 운전에 있어서 곤란을 야기시키게 된다.In other words, increasing the capacity of the holder requires a huge budget and a huge installation space for installing it, and causes an underpressure in the booster shear due to excessive flow rate in a conventionally used booster even in increasing demand. Due to the discontinuous generation of converter off-gas, the installation of a burner to utilize additional converter off-gas in the power plant causes difficulties in operation.

본 발명은 이러한 종래의 문제점을 해소하기 위하여 안출된 것으로서, 그 목적은, 전로에서의 취련시 발생되는 전로부생가스의 잉여분을 간단한 장치 변화에 의하여 효과적으로 처리하고, 따라서 자원의 낭비를 방지할 수 있도록 된 방산되는 전로부생가스의 회수방법 및 그 장치를 제공함에 있다.SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional problem, and its object is to effectively treat the surplus of converter by-product gas generated at the time of blowing in the converter by a simple device change, thus preventing waste of resources. The present invention provides a method and an apparatus for recovering the converted converter by-product gas.

제1도는 본 발명에 따른 방산되는 전로부생가스의 회수장치를 도시한 개략 구성도. 1 is a schematic configuration diagram showing an apparatus for recovering the converter off-gas dissipated according to the present invention .

제2도는 종래기술에 따른 시간에 대한 전로부생가스의 홀더내로의 유입량, 그 레벨 및 사용처로의 공급량을 도시한 그래프도.FIG. 2 is a graph showing the flow rate of converter byproduct gas into the holder, its level, and the amount of supply to the place of use according to the prior art. FIG.

제3도는 본 발명에 따른 시간에 대한 전로부생가스의 홀더내로의 유입량, 그 레벨, 사용처로의 공급량 및 고로가스의 발열량 변화를 도시한 그래프도이다.3 is a graph showing the flow rate of the converter by-product gas into the holder, the level, the supply amount to the place of use, and the calorific value of the blast furnace gas according to the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : 홀더 20 : 제1배출배관10: holder 20: first discharge pipe

22,28 : 수봉변 24 : 부스터22,28: Subongsa 24: Booster

26 : 체크밸브 30 : 제2배출배관26: check valve 30: second discharge pipe

32,36 : 수봉변 34 : 부스터32,36: Subong 34: Booster

40 : 고로가스배관40: blast furnace gas piping

상기 목적을 달성하기 위한 기술적인 구성으로서, 본 발명은, 전로의 취련작업시 발생하는 전로부생가스를 수용설비인 홀더를 통하여 사용처로 공급하는 방법에 있어서, 홀더의 용량을 초과하는 전로부생가스의 발생시 승압장치인 부스터를 통하여 그 전로부생가스를 고로가스의 압력으로 상승시킨후 고로가스배관측으로 공급함으로서 홀더의 레벨을 적정하게 유지함을 특징으로 하는 방산되는 전로부생가스의 회수방법을 마련함에 의한다.As a technical configuration for achieving the above object, the present invention is a method for supplying the converter by-product gas generated during the blow job of the converter to the place of use through the holder, which is an accommodation facility, of the converter by-product gas exceeding the capacity of the holder In case of occurrence, the converter by-gas is boosted to the pressure of the blast furnace gas through the booster, which is a booster, and then supplied to the blast furnace gas piping side to maintain the level of the holder properly. .

또한, 본 발명은, 전로의 취련작업시 발생하는 전로부생가스를 수용설비인 홀더에 수용하고, 상기 홀더는 승압을 위한 부스터를 갖춘 배출배관을 통하여 수용처로 공급되도록 된 전로부생가스 회수장치에 있어서, 상기 홀더에는 전로부생가스를 전로가스의 압력으로 승압시키기 위한 부스터를 갖춘 배출배관이 장착되고, 상기 배출배관은 체크밸브를 갖추어 고로가스배관으로 연결됨으로서 홀더의 레벨을 적정수준에서 유지시킴을 특징으로 하는 방산되는 전로부생가스의 회수 장치를 마련함에 의한다.In addition, the present invention, the converter by-product gas generated during the blow job of the converter is accommodated in a holder which is a receiving facility, the holder is a converter by-product gas recovery device to be supplied to the receiving destination through the discharge pipe having a booster for boosting pressure The holder is equipped with a discharge pipe having a booster for boosting converter by-product gas to the pressure of the converter gas, and the discharge pipe has a check valve connected to the blast furnace gas pipe to maintain the level of the holder at an appropriate level. By providing a recovery device for the converter by-product gas to be dissipated.

이하, 본 발명을 상세하게 설명한다.EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated in detail.

본 발명자등은 통상의 제철소 설비에서 고로에서 발생된 부생가스인 고로가스(BFG, Blast Furnace Gas)가 제철소내의 공정 및 발전소에 사용되고 있으며, 이 고로가스는 통상적으로 발전소에서 필요한 총연료량보다 적게 발생하고, 따라서 보조연료로서 증유를 사용하는 것을 알았으며, 따라서 전로부생가스의 잉여분을 홀더의 용량의 증가를 피하면서, 또한 추가적인 수요처의 증가없이 비교적 간단한 승압장치인 부스터를 이용하여 고로가스이송배관측으로 공급함으로서, 잉여 전로부생가스를 회수하여 사용할 수 있고, 이에 따라서 고로가스의 발열량의 상승이 이루어지며. 또한 발전소에 사용되는 보조연료인 중유의 사용량을 감소시킬 수 있는 것을 알았다.The present inventors have used blast furnace gas (BFG, Blast Furnace Gas), which is a by-product gas generated in a blast furnace in a conventional steel mill facility, to be used in a process and a power plant in a steel mill, and this blast furnace gas generally generates less than the total amount of fuel required at a power plant. Therefore, it was found that the use of reinforcement as auxiliary fuel was used, thus supplying surplus by-product gas to the blast furnace gas feed pipe using a booster, which is a relatively simple booster, while avoiding an increase in the capacity of the holder and without an increase in additional demand. By doing so, it is possible to recover and use surplus converter by-product gas, thereby increasing the calorific value of the blast furnace gas. In addition, it was found that the amount of heavy oil, an auxiliary fuel used in power plants, can be reduced.

이러한 대략적인 구성이 도 1에 나타나 있으며, 이에 의하면 전로부생가스를 수용하는 적정용량의 홀더(10)의 출측에 제 1배출배관(20)과 제 2배출배관(30)을 설치하고, 상기 제 1배출배관(20)은 수봉변(22)을 거쳐 제 1부스터(24)에 연결되며, 이러한 부스터(24)에는 체크밸브(Check Valve)(26)와 수봉변(28)을 거쳐 고로가스배관(40)으로 연결된다.This schematic configuration is shown in FIG. 1, whereby the first discharge pipe 20 and the second discharge pipe 30 are installed on the exit side of the holder 10 having a proper capacity for receiving converter by-product gas. The first discharge pipe 20 is connected to the first booster 24 via the water sealing side 22, and the booster 24 is connected to the blast furnace gas pipe via a check valve 26 and the water sealing side 28. 40 is connected.

그리고, 상기 제 2배출배관(30)은 수봉변(32)을 거쳐 제 2부스터(34)에 연결되며, 이러한 부스터(34)에는 수봉변(36)을 거쳐 발전소로 공급된다.In addition, the second discharge pipe 30 is connected to the second booster 34 via the water sealing side 32, and the booster 34 is supplied to the power plant via the water sealing side 36.

이때, 상기 홀더(10)와 제 2배출배관(30)측 구성은 종래의 구성을 그대로 이용하였으며, 제 1배출배관(20)측 구성은 새로운 장치이다.At this time, the holder 10 and the second discharge pipe 30 side configuration was used as the conventional configuration, the first discharge pipe 20 side configuration is a new device.

즉, 제강공정에서 발생된 전로부생가스는 홀더(10)에 저장되며, 이렇게 저장된 전로부생가스는 종래의 부스터(34)에 의하여 가압된 후 발전소 등의 수요처로 보내진다. 상기 수봉변(22)(28)(32)(36)은 정수시 가스의 흐름을 완전하게 차단하는 경우에 사용되어진다. 또한, 고로에서 발생된 고로가스도 고로가스배관(40)을 통하여 발전소 등의 수요처로 보내어진다. 본 발명에서 추가로 구성한 부분은 정수시 가스의 흐름을 차단하게 된 수봉변(22)(28), 저압의 전로부생가스를 고압의 고로가스배관(40)측으로 공급하기 위하여 그 전로부생가스를 승압시기는 부스터(24) 및 고압의 고로가스가 저압인 전로부생가스측으로 역류하는 것을 방지하기 위한 체크밸브 (26)이다.That is, the converter by-product gas generated in the steelmaking process is stored in the holder 10, and the converter by-product gas thus stored is pressurized by the conventional booster 34 and then sent to a demand destination such as a power plant. The water seal sides 22, 28, 32, and 36 are used to completely block the flow of gas during water purification. In addition, the blast furnace gas generated in the blast furnace is also sent to the demand destination, such as power plants through the blast furnace gas pipe (40). Further configured in the present invention is to boost the converter by-gas in order to supply to the high pressure blast furnace gas pipe 40 side of the water sealing sides (22) and (28), the low pressure converter by-products to block the flow of gas at the water purification The timing is the booster 24 and the check valve 26 for preventing the high pressure blast furnace gas from flowing back to the low pressure converter by-product gas side.

종래의 장치에서는 제강공정에서 발생된 전로부생가스중 발전소에서 전로부생가스를 이용하기 위한 버너의 용량부족 및 홀더자체의 저장용량의 부족등으로 인한 잉여 전로부생가스를 방산하도록 되어 있으나, 본 발명에서는 잉여 전로부생가스를 추가로 설치된 부스터(24)를 이용하여 고로가스배관(40)측으로 공급함으로서 전로부생가스의 방산을 방지하는 것이다. 이는 전로부생가스 홀더의 레벨과 제강공정에서의 전로부생가스의 회수시간과 차기 회수시간과의 시간차에 의한 조건에 따라 고로가스배관(40)으로 보내지는 유량과 수요처로 보내지는 유량을 제어함으로서 홀더의 적겅레벨을 유지하면서 방산을 억제할 수 있다.In the conventional apparatus, the converter converts excess converter by-products due to lack of capacity of the burner and lack of storage capacity of the holder itself in the converter by-product gas generated in the steelmaking process, but in the present invention, By supplying the surplus converter by-product gas to the blast furnace gas pipe 40 side by using the booster 24 is installed to prevent the dispersion of converter by-product gas. It controls the flow rate to be sent to the blast furnace gas pipe 40 and the flow rate to the demand destination depending on the level of the converter by-gas holder and the time difference between the recovery time of the converter by-product gas in the steelmaking process and the next recovery time. Dissipation can be suppressed while maintaining the enemy's level.

이하, 실시예에 의하여 본 발명의 작용을 설명한다.Hereinafter, the operation of the present invention by way of examples.

[실시예 1]Example 1

제철소에서 통상적으로 발생되는 전로부생가스와 고로가스의 평균적인 발열량은 각각 1,845㎉/㎏ 및 692㎉/㎏이고, 전로부생가스를 고로가스배관에 공급하는 위치에서의 고로가스의 평균유량은 880,000N㎥/시간이며, 전로부생가스의 평균유량은 60,000N㎥/시간이고, 방산되는 전로부생가스의 평균유량은 총 전로부생가스유량의 10%인 6,000N㎥/시간이다. 방산 전로부생가스를 1시간중 약 10여분에 걸쳐 회수할경우 10분동안의 고로가스 평균발열량은 737㎉/㎏으로 약 45㎉/㎏정도 증가하게 된다.The average calorific value of converter by-product gas and blast furnace gas generated in steel mills is 1,845㎉ / ㎏ and 692㎉ / kg, respectively, and the average flow rate of blast furnace gas at the position to supply converter by-product gas to blast furnace gas pipe is 880,000N. M3 / hour, the average flow rate of converter by-product gas is 60,000 Nm3 / hour, and the average flow rate of converter by-product gas is 6,000 Nm3 / hour, which is 10% of the total converter by-product gas flow rate. When dissipated converter by-product gas is recovered over about 10 minutes during 1 hour, the average calorific value of blast furnace gas for 10 minutes is increased to about 750 kW / kg to 45 kW / kg.

[실시예 2]Example 2

상기 실시예 1에서와 같은 고로가스유량, 전로부생가스유량, 방산 전로부생가스유량의 경우, 방산 전로가스를 1시간중 약 20분에 걸쳐 회수할 경우 20분 동안의 고로가스의 평균발열량은 715㎉/㎏으로 약 23㎉/㎏정도 증가하게 된다.In the case of the blast furnace gas flow, converter by-product gas flow, dissipation converter by-gas flow as in Example 1, the average calorific value of the blast furnace gas for 20 minutes when the dissipation converter gas is recovered over about 20 minutes in one hour is 715 ㎉ / ㎏ will increase about 23 ㎏ / ㎏.

[실시예 3]Example 3

상기 실시예 1에서와 같은 고로가스유량, 전로부생가스유량, 방산 전로부생가스유량의 경우, 방산 전로가스를 1시간중 약 30분에 걸쳐 회수할 경우 30분 동안의 고로가스의 평균발열량은 708㎉/㎏으로 약 16㎉/㎏정도 증가하게 된다.In the case of blast furnace gas flow, converter by-product gas flow, and dissipation converter by-gas flow as in Example 1, the average calorific value of blast furnace gas for 30 minutes is 708 when dissipation converter gas is recovered over about 30 minutes in 1 hour. ㎉ / ㎏ will increase about 16 ㎉ / ㎏.

[실시예 4]Example 4

종래의 장치에 의한 설비운전자료에서 전로부생가스 유입량, 전로부생가스 방산량, 발전소로 보내지는 전로부생가스유량 및 홀더의 레벨을 도 2에 도시하였으며; 도 3에는 본 발명을 통하여 전로부생가스 회수장치를 이용하는 경우 전로가스 유입량, 고로가스배관내로의 전로부생가스의 공급량, 발전소로 보내지는 전로부생가스유량, 홀더의 레벨 및 전로부생가스공급으로 인한 고로가스발열량의 변화를 도시하였으며, 이에 의하면 본 장치에 의하여 방산이 없으면서, 적정한 홀더레벨을 유지할 수 있고, 또한 고로가스의 발열량이 증가함을 알수 있다.The converter by-product gas inflow, converter by-product gas dissipation, converter by-product gas flow to the power plant and the level of the holder are shown in FIG. 3, when using the converter by-product recovery device through the present invention, the converter gas inflow amount, the supply amount of the converter by-product gas into the blast furnace gas pipe, the converter by-product gas flow to the power plant, the level of the holder and the blast furnace due to the supply of converter by-product gas The change in the amount of heat generated by the gas is shown. According to this, it can be seen that the present invention can maintain an appropriate holder level without dissipation and increase the amount of heat generated by the blast furnace gas.

본 발명에 따른 방산되는 전로부생가스의 회수방법 및 그 장치에 의하면, 일정용량의 홀더내로 유입되어 사용처로 보내지는 전로부생가스를 별도의 부스터를 이용하여 승압시켜 고로가스배관측으로 공급함으로서 잉여 전로부생가스의 방산이 억제되는 상태인 적정레벨에 홀더가 유지되고, 또한 고로가스의 발열량도 증가함으로서, 전로부생가스의 효과적인 이용이 가능하게하여 에너지의 절약은 물론 설비의 안정적인 운용이 가능하도록 하는 효과를 보유한다.According to the method and the apparatus for recovering the converter by-product gas dissipated according to the present invention, by using a separate booster to boost the converter by-product gas flows into the holder of a predetermined capacity and supplied to the blast furnace gas piping side to supply the excess converter by-product The holder is maintained at an appropriate level at which gas dissipation is suppressed, and the calorific value of the blast furnace gas is also increased, thereby making it possible to effectively use converter by-product gas, thereby saving energy and enabling stable operation of the equipment. Hold.

Claims (2)

전로의 취련작업시 발생하는 전로부생가스를 수용하고, 저장되는 가스레벨 변화에 따라 상하이동되는 피스톤부재를 갖는 홀더를 갖추며, 상기 홀더에는 상기 피스톤부재의 위치를 감지하여 가스저장량을 측정하고, 가스배출을 제어하는 레벨감지기를 갖추어 상기 전로부생가스를 사용처로 공급하는 방법에 있어서, 상기 홀더내에서 설정된 가스저장용량을 초과하는 전로부생가스의 발생을 감지하고 초과된 전로부생가스를 승압장치인 부스터를 통하여 고로가스의 압력으로 상승시킨 다음, 상기 홀더내 가스저장량이 적정레벨이 될 때 까지 상기 승압된 전로부생가스를 고로가스배관측으로 공급함으로서 홀더의 레벨을 적정하게 유지함을 특징으로 하는 방산되는 전로부생가스의 회수방법.It receives the converter by-product gas generated during the blow job of the converter, and is provided with a holder having a piston member which is moved in accordance with the change in the gas level stored in the holder, by detecting the position of the piston member to measure the gas storage amount, gas A method of supplying the converter by-product gas to a place of use having a level sensor for controlling the discharge, wherein the occurrence of converter by-product gas exceeding the gas storage capacity set in the holder is detected and the excess converter by-product gas is boosted as a booster. After the pressure is increased to the pressure of the blast furnace gas, the converter is discharged converter characterized in that to maintain the level of the holder properly by supplying the boosted converter by-product gas to the blast furnace gas piping side until the gas storage amount in the holder is an appropriate level Recovery of by-product gas. 전로의 취련작업시 발생하는 전로부생가스를 수용설비인 홀더(10)에 수용하고, 상기 홀더(10)는 승압을 위한 부스터(34)를 갖춘 제2배출배관(30)을 통하여 수용처로 공급되도록 된 전로부생가스 회수장치에 있어서, 상기 홀더(10)에는 전로부생가스를 전로가스의 압력으로 승압시기기 위한 부스터(24)를 갖춘 제1배출배관 (20)이 장착되고, 상기 제1배출배관(20)은 체크밸브(26)를 갖추어 고로가스배관 (40)으로 연결됨으로서 홀더 (10)의 레벨을 적정수준에서 유지시킴을 특징으로 하는 방산되는 전로부생가스의 회수장치.The converter by-product gas generated during the blow job of the converter is accommodated in the holder 10, which is an accommodation facility, the holder 10 is to be supplied to the receiving place through the second discharge pipe 30 having a booster 34 for boosting pressure In the converter by-product gas recovery device, the holder 10 is equipped with a first discharge pipe 20 having a booster 24 for boosting the converter by-product gas to the pressure of the converter gas, the first discharge pipe (20) is provided with a check valve 26 is connected to the blast furnace gas pipe 40 to maintain the level of the holder (10) at the appropriate level, characterized in that the recovery of the discharge converter gas discharged.
KR1019960070082A 1996-12-23 1996-12-23 The recovering method of converter this fleeting gas KR100270097B1 (en)

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* Cited by examiner, † Cited by third party
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KR101228766B1 (en) * 2010-07-07 2013-01-31 주식회사 포스코 Apparatus and Method for Treating Linz-Donawitz Gas and Blast Furnace Gas
KR20190066099A (en) 2017-12-04 2019-06-13 (주)현대티에스 Apparatus for greasing crane rail

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Publication number Priority date Publication date Assignee Title
KR100861204B1 (en) * 2002-08-22 2008-09-30 주식회사 포스코 Method for collecting Linze Donawitz Gas
KR101355568B1 (en) * 2012-01-31 2014-01-27 현대제철 주식회사 Strorage apparatus of by-product gas in furnace and controlling method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101228766B1 (en) * 2010-07-07 2013-01-31 주식회사 포스코 Apparatus and Method for Treating Linz-Donawitz Gas and Blast Furnace Gas
KR20190066099A (en) 2017-12-04 2019-06-13 (주)현대티에스 Apparatus for greasing crane rail

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