KR890000618Y1 - Cooling system of the blast furnace slap for making powder - Google Patents
Cooling system of the blast furnace slap for making powder Download PDFInfo
- Publication number
- KR890000618Y1 KR890000618Y1 KR2019850017215U KR850017215U KR890000618Y1 KR 890000618 Y1 KR890000618 Y1 KR 890000618Y1 KR 2019850017215 U KR2019850017215 U KR 2019850017215U KR 850017215 U KR850017215 U KR 850017215U KR 890000618 Y1 KR890000618 Y1 KR 890000618Y1
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- slag
- molten slag
- cooling tank
- cooling
- blast furnace
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Iron (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
내용 없음.No content.
Description
제1도는 본 고안의 전체 개략도.1 is an overall schematic view of the present invention.
제2도는 제1도의 "a" 부분의 확대단면도.2 is an enlarged cross-sectional view of the portion "a" of FIG.
제3도는 제2도의 B-B' 선 단면도.3 is a cross-sectional view taken along the line B-B 'of FIG.
제4도는 제2도의 C-C' 선 단면도.4 is a cross-sectional view taken along the line C-C 'of FIG.
제5도는 제2도의 D-D' 선 단면도.5 is a cross-sectional view taken along the line D-D 'of FIG.
제6도는 제1도 "b" 부분의 확대단면도.6 is an enlarged cross-sectional view of the portion "b" of FIG.
본 고안은 고로에서 출선시 발생되는 용융 슬래그를 원추형심체상부의 환상 유출구에서 유출시킴과 동시에 원추형심체 저면의 환상 분사구를 통해 1차냉매로 건식입화시킨후, 2차냉매로 냉각시키는 고로슬래그의 건식입화 냉각장치에 관한 것이다.The present invention discharges the molten slag generated from the blast furnace at the annular outlet of the upper part of the conical core and dry granulates it as the primary refrigerant through the annular injection port at the bottom of the conical core, and then cools it with the secondary refrigerant. It relates to a granulation chiller.
종래의 슬래그 입화장치로는 냉각조내부에서 회전원판이나 회전드럼에 용융슬래그를 낙하시켜 건식입화시키는 장치 또는 냉각조측면 입구에서 낙하하는 용융 슬래그에 고압의 기체를 분사하여 냉각조출구측벽에 충돌시켜 건식입화시키는 장치등이 있었으나, 전자는 고온분위기 때문에 회전하는 부분이 쉽게 열화(劣化)되고 후자는 고압개스로 냉각조 출구측벽에 충돌시켜 입화시키기 때문에 입자의 크기가 불균일하다는 문제점을 지니고있었다.Conventional slag incorporation apparatus is a device for dry melting by dropping the molten slag in the rotating disk or the rotating drum in the cooling tank or by spraying a high-pressure gas to the molten slag falling from the inlet side of the cooling tank to collide with the cooling outlet side wall. Although dry granulation devices exist, the former has a problem that the rotating part is easily deteriorated due to the high temperature atmosphere, and the latter has a problem that the particle size is uneven because it collides with the exit wall of the cooling tank by high pressure gas.
본 고안은 상기문제점을 해결하기 위하여 건식입화냉각조내에 환상의 용융슬래그를 얇은막(약 3㎝-5㎝)으로 낙하하도록하고 용융슬래그의 유출 낙하방향과 90˚-120˚의 각도를 이루는 상부 방향으로 1차냉매를 분사하여 용융슬래그를 입화시킨뒤 입화 냉각조 하부에서 공급되는 1차냉매로서 재차 냉각시켜 슬래그를 입화시키는 슬래그와 냉매의 입화구조를 새로이하며, 슬래그의 입화입자크기를 일정하게 하고자하는데 그 목적이있다.In order to solve the above problems, the present invention allows the annular molten slag to fall into a thin film (about 3 cm-5 cm) in a dry granulation cooling bath and forms an angle of 90 ° to 120 ° with the outflow falling direction of the molten slag. Primary slag is injected into the molten slag by spraying it in the direction, and it is cooled as a primary coolant supplied from the lower part of the granulation cooling tank to renew the granulation structure of the slag and the refrigerant to granulate the slag. I would like to have that purpose.
본 고안의 구조를 도면에 의거 상세히 설명하면 다음과 같다.Referring to the structure of the subject innovation in detail as follows.
냉각조(14)일측에는 슬래그운반장치(1)와 용융슬래그(2)의 정량 유출조(3)를 상, 하단으로 구성하고 정량 유출조(3)로부터 냉각조(14) 내부중앙까지 하향경사지게 유입관(7)을 관설한다.On one side of the cooling tank 14, the slag transport device 1 and the molten slag 2 have a fixed flow rate discharge tank 3 formed at the upper and lower ends, and are inclined downward from the fixed flow rate discharge tank 3 to the inner center of the cooling tank 14. Manage the inlet pipe (7).
냉각조(14) 타측에는 송풍기(18)로부터 분사되는 일차냉매 공급관(13)을 상향경사지게하여 상기 슬래그 유입관(7)의 하부노즐까지 관설한다.On the other side of the cooling tank 14, the primary coolant supply pipe 13 injected from the blower 18 is inclined upward, and the pipe is connected to the lower nozzle of the slag inlet pipe 7.
이와같은 상부슬래그 유입관(7) 하부와 일차냉매공급관(13) 상부 사이에는 원추형 심체(10)를 개재시키되 각각 지지대(9)(9')로서 일체화한다.A conical core 10 is interposed between the lower portion of the upper slag inflow pipe 7 and the upper portion of the primary refrigerant supply pipe 13, and is integrated as a support 9 and 9 ′, respectively.
따라서 제3도, 제4도와 같이 원추형 심체(10)를 중심으로 십자형으로 지지대(9)(9')가 각각 구성되고 상부 지지대(9) 사이에는 유출구(11)가, 하부지지대(9') 사이에는 분사구(12)가 각각 형성된다. 원추형 심체(10)는 수직선상을 따라 상, 하주면이 일정각도 경사짐과 아울러 원추형상으로 밀폐된 중공체(中空體)이다. 또한 본 고안은 냉각조(14) 저면으로 이차 냉매분사구(17)를 구성하되 이차냉매 분배관(19)과 송풍기(18)를 장치한다.Accordingly, as shown in FIGS. 3 and 4, the support bodies 9 and 9 'are formed crosswise around the conical core 10, and the outlet 11 is provided between the upper supports 9 and the lower support 9'. The injection hole 12 is formed in between. The conical core 10 is a hollow body in which the upper and lower peripheral surfaces are inclined at an angle along a vertical line and are closed in a conical shape. In addition, the present invention comprises a secondary refrigerant injection port (17) to the bottom surface of the cooling tank (14) is equipped with a secondary refrigerant distribution pipe (19) and a blower (18).
미설명부호 4는 철재파이프이고, 5는 스터드볼트, 6은 부정형 내화물, 8은 관체연결부, 15는 이음부, 16은 입화된 슬래그, 20은 연돌, 21은 유량조절변, 22는 집진기, 23은 입화슬래그 저장조, 24는 입화슬래그이송파이프, 25는 입화슬래그배출변, 26은 배출구, 27은 가스켓이다.Unmarked 4 is steel pipe, 5 is stud bolt, 6 is irregular refractory, 8 is tubular connection, 15 is seam, 16 is granulated slag, 20 is stack, 21 is flow control valve, 22 is dust collector, 23 Silver granulated slag reservoir, 24 is granulated slag transfer pipe, 25 is granulated slag discharge side, 26 is outlet, 27 is gasket.
이와같이 구성된 본 고안은 제1도에서와 같이 용융슬래그 운반장치(1)로 운반된 용융슬래그(2)가 정량유출조(3)에서 일정량씩 유입관(7)으로 공급되어 네개의 원호상 유출구(11)를 통과하면서 얇은막 상태로 냉각조(14) 내부로 유출됨과 동시에 송풍기(18)에서 송풍공급되는 일차냉매가 공급관(13)을 통하여 일차냉매 분사구(12)에서 분사되므로 상기 얇은 막상태로 심체(10) 상부주면에서 하향으로 배출되는 용융슬래그 비산(飛散) 입화시키게된다.The present invention configured as described above has four molten slag (2) conveyed to the molten slag conveying apparatus (1) as shown in FIG. 11) the primary refrigerant flowing out of the cooling tank 14 in the form of a thin film while being blown and supplied by the blower 18 is injected from the primary refrigerant injection port 12 through the supply pipe 13 to the thin film state. The molten slag scattering is discharged from the upper peripheral surface of the core 10 to be granulated.
이렇게 생성된 입화슬래그(16)는 냉각조(14)내를 낙하하는 동안 송풍기(18)로부터 이차분배관(19)을 거쳐 이차분사구(17)를 통해 분사된 이차냉매와 접촉하여 재차냉각된다.The granulated slag thus produced is cooled again by contacting the secondary refrigerant injected from the blower 18 through the secondary injection port 17 through the secondary distribution pipe 19 while falling in the cooling tank 14.
냉각된 입화 슬래그(16)는 냉각조(14) 하부에 연결된 파이프(24)를 통하여 입화슬래그저장조(23)에 저장된 후 배출변(25)에 대해 조절분출된다.The cooled granular slag 16 is stored in the granular slag storage tank 23 through a pipe 24 connected to the lower portion of the cooling tank 14, and then controlled and discharged to the discharge side 25.
한편, 입화슬래그(16)와 접촉된 냉매는 냉각조(14) 상부에 설치된 유량조절변(21)에 의해 일정유량으로 냉각조(14)를 나와 집진기(22)를 거쳐 분진이 제거된 공기가 연돌(20)을 통해 밖으로 배출된다.Meanwhile, the refrigerant contacted with the granular slag 16 exits the cooling tank 14 at a constant flow rate by the flow control valve 21 installed on the cooling tank 14, and passes through the dust collector 22 to remove dust. It is discharged out through the stack 20.
이와같이 본 고안은 종래의 냉각조 측면 입구에서 낙하하는 용융슬래그에 고압깨스로 냉각조 출구측벽에 충돌시켜 입화시키기 때문에 입자가 불균일하던 문제점과 회전하는 원판이나 회전드럼에 용융슬래그를 낙하시켜 입화시키므로서 고온 분위기 때문에 회전하는 부분이 쉽게 열화되는 문제점을 개선하여 환상의 유출구(11)를 통해서 분사되는 용융슬래그(2)를 1차냉매 공급관(13)으로 분사되는 냉매에 의해 입화되는 실용적인 고안이다.As such, the present invention has a problem that the particles are non-uniform because the high pressure cracks and melts the molten slag falling from the inlet side of the conventional cooling tank, and the molten slag is dropped onto the rotating disk or rotating drum and granulated. It is a practical design in which the molten slag 2 injected through the annular outlet 11 is granulated by the refrigerant injected into the primary refrigerant supply pipe 13 by improving the problem of easily rotating parts due to the high temperature atmosphere.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019850017215U KR890000618Y1 (en) | 1985-12-20 | 1985-12-20 | Cooling system of the blast furnace slap for making powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019850017215U KR890000618Y1 (en) | 1985-12-20 | 1985-12-20 | Cooling system of the blast furnace slap for making powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR870010178U KR870010178U (en) | 1987-07-10 |
| KR890000618Y1 true KR890000618Y1 (en) | 1989-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019850017215U KR890000618Y1 (en) | 1985-12-20 | 1985-12-20 | Cooling system of the blast furnace slap for making powder |
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| Country | Link |
|---|---|
| KR (1) | KR890000618Y1 (en) |
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1985
- 1985-12-20 KR KR2019850017215U patent/KR890000618Y1/en not_active IP Right Cessation
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| Publication number | Publication date |
|---|---|
| KR870010178U (en) | 1987-07-10 |
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