KR100923465B1 - Device for supplying oxidized steel of fluidized bed reactor in hydrochloric acid facility - Google Patents

Device for supplying oxidized steel of fluidized bed reactor in hydrochloric acid facility Download PDF

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KR100923465B1
KR100923465B1 KR1020020051622A KR20020051622A KR100923465B1 KR 100923465 B1 KR100923465 B1 KR 100923465B1 KR 1020020051622 A KR1020020051622 A KR 1020020051622A KR 20020051622 A KR20020051622 A KR 20020051622A KR 100923465 B1 KR100923465 B1 KR 100923465B1
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South Korea
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reactor
iron oxide
pipe
collection tank
transfer
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KR1020020051622A
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Korean (ko)
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KR20040020164A (en
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강민규
이종배
오세대
강의찬
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주식회사 포스코
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    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/08—Screw feeders; Screw dischargers
    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/18—Charging particulate material using a fluid carrier
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
    • F27M2003/00—Type of treatment of the charge
    • F27M2003/14—Pyrolising

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compounds Of Iron (AREA)

Abstract

본 발명의 목적은 산화철이 담긴 수집탱크로부터 산화철을 반응로로 용이하게 공급하여 반응로 바닥에 도포할 수 있도록 된 산 회수설비 반응로의 산화철 공급장치를 제공함에 있다.It is an object of the present invention to provide an iron oxide supply apparatus for an acid recovery facility reactor that can be easily applied to the bottom of the reactor by supplying iron oxide from the collection tank containing the iron oxide to the reactor.

이에 본 발명은 폐산을 가열하여 산화철과 산가스로 분리하기 위한 반응로와, 이 반응로에서 만들어진 산화철을 저장하는 수집탱크를 포함하는 산회수설비에 있어서, 상기 산화철 수집탱크 하부에 설치되어 산화철을 반응로로 공급하기 위한 공급부와, 상기 공급부에 연결되고 상기 반응로 내에 설치되어 공급된 산화철을 반응로 저부로 분사시키기 위한 도포부를 포함하는 산 회수설비 반응로의 산화철 공급장치를 제공한다.Accordingly, the present invention is an acid recovery facility including a reactor for heating waste acid to separate iron oxide and acid gas, and a collection tank for storing iron oxide produced in the reactor, wherein the iron oxide collection tank is installed under the iron oxide collection tank. Provided is an iron oxide supply apparatus for an acid recovery facility reactor comprising a supply unit for supplying to the reactor, and a coating unit connected to the supply unit and installed in the reactor to supply iron oxide supplied to the bottom of the reactor.

반응로, 수집탱크, 배출구, 이송관, 이송스크류, 분사관Reactor, Collection Tank, Outlet, Transfer Pipe, Transfer Screw, Injection Pipe

Description

산 회수설비 반응로의 산화철 공급장치{Device for supplying oxidized steel of fluidized bed reactor in hydrochloric acid facility}Device for supplying oxidized steel of fluidized bed reactor in hydrochloric acid facility

도 1은 본 발명에 따라 산화철 공급장치가 반응로에 설치된 상태를 도시한 사시도,1 is a perspective view showing a state in which an iron oxide supply device is installed in a reactor according to the present invention;

도 2는 본 발명에 따른 산화철 공급장치의 일부 구성 사시도,Figure 2 is a perspective view of a part of the iron oxide supply apparatus according to the present invention,

도 3은 본 발명에 따른 산화철 공급장치의 일부 상세도,3 is a partial detailed view of the iron oxide supply apparatus according to the present invention,

도 4는 종래기술에 따른 산화철 공급장치가 반응로에 설치된 상태를 도시한 사시도이다.Figure 4 is a perspective view showing a state in which the iron oxide supply apparatus according to the prior art is installed in the reactor.

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

10 : 반응로 20 : 수집탱크10: reactor 20: collection tank

30 : 배출관 31 : 이송관30: discharge pipe 31: transfer pipe

32 : 이송스크류 33 : 구동모터32: feed screw 33: drive motor

34 : 배출구 40 : 연결관34: outlet 40: connector

41 : 에어관 42 : 분사관41: air pipe 42: injection pipe

43 : 분사노즐 44 : 솔레노이드밸브43: injection nozzle 44: solenoid valve

본 발명은 스테인리스 소둔산세공정의 산회수설비에 관한 것으로, 더욱 상세하게는 산회수설비의 가동시 반응로로 산화철을 투입하기 위한 산화철 공급장치에 관한 것이다.The present invention relates to an acid recovery facility of a stainless annealing pickling process, and more particularly, to an iron oxide supply device for introducing iron oxide into a reactor during operation of the acid recovery facility.

일반적으로 스테인레스는 산세공정을 거침으로서 열간압연 과정에서 스트립 표면에 발생된 산화성 스케일을 염산 등을 이용하여 화학적으로 제거할 수 있게 된다.In general, stainless is subjected to a pickling process, and thus, an oxidative scale generated on the surface of the strip during hot rolling can be chemically removed using hydrochloric acid.

이와 같이 산세공정에서는 염산이나 황산 등과 같은 유독성 공해물질이 사용되고 배출되는 데, 사용된 폐산은 중간 공정인 폐산탱크에 수집되었다가 재사용을 위해 산 회수설비로 보내지게 되고, 이곳에서 18%의 재생염산으로 재생된다.In the pickling process, toxic pollutants such as hydrochloric acid and sulfuric acid are used and discharged. The waste acid used is collected in the waste acid tank, which is an intermediate process, and is sent to an acid recovery facility for reuse. Is played.

즉, 폐산에는 중금속(크롬, 니켈 등) 및 철이 다량으로 녹아 있기 때문에 이것을 반응로에서 산화철로 분리하여 재생된 질산, 불산은 산세공정으로 재투입하고 산화철은 펠릿으로 제조하여 제강공장 원료로 재사용하게 되는 것이다.In other words, since heavy metals (chromium, nickel, etc.) and iron are dissolved in waste acid, they are separated into iron oxides in the reactor and regenerated nitric acid and hydrofluoric acid are pickled in the pickling process, and iron oxides are manufactured as pellets and reused as raw materials for steel mills. Will be.

상기한 반응로(100)는 도 4에 도시된 바와 같이 폐산이 유통되는 호스와 연결된 스프레이붐(101)이 상부 투입구를 통해 장입설치되어 있어서, 스프레이붐(101)의 노즐을 통해 반응로 상부의 투입구로 폐산이 미세하게 분사 투입되면 폐산은 약 950℃정도의 노 내부를 거치면서 열분해되어 물은 증발되고 금속염은 산화반응됨으로서 산화철과 산가스로 분리되도록 되어 있다.As shown in FIG. 4, the reactor 100 is equipped with a spray boom 101 connected to a hose through which waste acid flows, and is installed through an upper inlet. When finely injected waste acid is injected into the inlet, waste acid is thermally decomposed while passing through the furnace at about 950 ° C, water is evaporated, and the metal salt is oxidized to be separated into iron oxide and acid gas.

그리고 분리 제조된 산화철은 반응로(100)의 저면에 설치되어 있는 레블링장치(102;rabbling device)를 통해 수집된 후 로터리피더(103)를 통해 자유낙하 된 후 배출라인(104)을 통해 산화철 수집탱크(105)로 저장되며, 최종적으로 수집탱크(105) 하부에 위치한 펠레타이징장치(106)를 통해 제강의 원료로 재투입된다.The separately manufactured iron oxide is collected through a rabbling device 102 installed on the bottom of the reactor 100 and then free-falls through the rotary feeder 103, and then the iron oxide through the discharge line 104. It is stored in the collecting tank 105, and finally re-injected into the steelmaking raw material through the pelletizing device 106 located below the collecting tank 105.

여기서 상기한 과정에서 산회수 설비의 초기 가동이나 정지 후 재가동시에는 반응로 상부에서 스프레이 노즐을 통해 분사 공급되는 폐산에 의해 반응로 하부의 철피가 훼손되는 것을 방지하기 위하여 반응로 바닥에 일정 두께의 산화철을 도파하게 된다.In the above process, when the acid recovery facility is restarted after the initial operation or stop, a certain thickness of the bottom of the reactor is prevented from being damaged by the waste acid supplied through the spray nozzle from the upper part of the reactor. Iron oxide will be guided.

그런데, 종래에는 상기한 산화철 도포작업이 수작업에 의해 이루어졌으며, 즉 작업자가 상기 수집탱크에 저장된 산화철을 일일이 삽 등의 치구를 이용하여 퍼내어 반응로 일측의 맨홀을 통해 반응로 내부로 투입시키는 구조로, 작업이 비능률적이어 시간과 노력이 많이 소요되고 생산성이 저하되며, 산화철에서 발생하는 먼지로 인해 작업자의 건강이 위협받고, 빨간 산화철 가루가 설비바닥에 비산되어 환경에 악영향을 끼치게 되는 문제가 있다.However, in the related art, the iron oxide coating operation was performed by manual labor, that is, a worker injects the iron oxide stored in the collection tank into the reactor through a manhole on one side of the reactor by using a jig, such as a shovel. Due to the inefficient operation, it takes a lot of time and effort, reduces productivity, and dust from iron oxide threatens worker's health, and red iron oxide powder is scattered on the floor of the equipment, which adversely affects the environment. .

이에 본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로서, 산화철이 담긴 수집탱크로부터 산화철을 반응로로 용이하게 공급하여 반응로 바닥에 도포할 수 있도록 된 산 회수설비 반응로의 산화철 공급장치를 제공함에 그 목적이 있다.Accordingly, the present invention has been made in order to solve the above problems, the iron oxide supply apparatus of the acid recovery equipment reactor that can be easily applied to the bottom of the reactor by supplying iron oxide from the collection tank containing iron oxide to the reactor. The purpose is to provide.

상기와 같은 목적을 실현하기 위한 본 발명은, 산 회수설비에 있어서, 생산 된 산화철이 담긴 산화철 수집탱크 하부에 설치되어 산화철을 반응로로 공급하기 위한 공급부와, 상기 공급부에 연결되고 상기 반응로 내에 설치되어 공급된 산화철을 반응로 저부로 분사시키기 위한 도포부를 포함한다.The present invention for realizing the above object, in the acid recovery facility, is installed in the bottom of the iron oxide collection tank containing the produced iron oxide supply unit for supplying iron oxide to the reactor, and connected to the supply unit in the reactor It includes an application unit for injecting the supplied iron oxide to the bottom of the reactor.

이하 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명에 따라 산화철 공급장치가 반응로에 설치된 상태를 도시한 사시도이고, 도 2는 본 발명에 따른 산화철 공급장치의 일부 구성 사시도이며, 도 3은 본 발명에 따른 산화철 공급장치의 일부 상세도이다.1 is a perspective view showing a state in which the iron oxide supply apparatus is installed in the reactor according to the present invention, Figure 2 is a perspective view of a part configuration of the iron oxide supply apparatus according to the present invention, Figure 3 is a part of the iron oxide supply apparatus according to the present invention Detailed view.

상기한 도면에 의하면, 산회수설비는 폐산을 가열하여 산화철과 산가스로 분리하기 위한 반응로(10)와, 이 반응로(10)에서 만들어진 산화철을 저장하는 수집탱크(20)로 구분되며, 상기 반응로(10)는 폐산이 유통되는 호스와 연결된 스프레이붐(11)이 상부 투입구를 통해 장입설치되어 있어서, 스프레이붐(11)의 노즐을 통해 반응로(10) 상부의 투입구로 폐산이 미세하게 분사 투입되면 폐산은 약 950℃정도의 노 내부를 거치면서 열분해되어 물은 증발되고 금속염은 산화반응됨으로서 산화철과 산가스로 분리되고, 분리 제조된 산화철은 반응로(10)의 저면에 설치되어 있는 레블링장치(12;rabbling device)를 통해 수집된 후 로터리피더(13)를 통해 자유낙하 된 후 배출라인(14)을 통해 산화철 수집탱크(20)로 저장되며, 최종적으로 수집탱크(20) 하부에 위치한 펠레타이징장치(21)를 통해 제강의 원료로 재투입되는 구조로 되어 있다.According to the drawings, the acid recovery facility is divided into a reactor 10 for heating waste acid to separate the iron oxide and acid gas, and a collection tank 20 for storing the iron oxide produced in the reactor 10, The reactor 10 has a spray boom (11) connected to the hose through which the waste acid flows is charged through the upper inlet, the waste acid is fine into the inlet of the upper reactor (10) through the nozzle of the spray boom 11 When the injection is made, waste acid is thermally decomposed while passing through the furnace at about 950 ° C., water is evaporated, and the metal salt is oxidized to be separated into iron oxide and acid gas, and the separately manufactured iron oxide is installed at the bottom of the reactor 10. Collected through a rabbling device 12 and then freely falling through the rotary feeder 13 and then stored in the iron oxide collection tank 20 through the discharge line 14, and finally, the collection tank 20. Pelting at the bottom Through value 21 it has a structure that is re-introduced as a raw material for steel making.

여기서 본 발명의 산화철 공급부는 산화철이 저장되어 있는 수집탱크(20)로 부터 필요시 일정량의 산화철을 인출하여 반응로(10)쪽으로 이송시키기 위한 것으로, 상기 수집탱크(20) 하부 일측에 연통설치되어 산화철이 흘러나오도록 된 배출관(30)와, 이 배출구에 연결설치되어 반응로(10)쪽으로 연장되는 이송관(31), 이 이송관(31) 내부에 설치되어 산화철을 이송시키기 위한 이송스크류(32), 이송관(31) 끝단에 설치되고 상기 이송스크류(32) 회전축에 연결되어 이송스크류(32)를 회전시키기 위한 구동모터(33)를 포함한다.Wherein the iron oxide supply unit of the present invention is to take out a certain amount of iron oxide from the collection tank 20 in which the iron oxide is stored to transfer to the reaction furnace 10, and is installed in communication with the lower side of the collection tank (20) A discharge pipe 30 through which the iron oxide flows out, a transfer pipe 31 connected to the discharge port and extending toward the reactor 10, and a transfer screw installed inside the transfer pipe 31 to transfer iron oxide ( 32), a drive motor 33 is installed at the end of the transfer pipe 31 and connected to the transfer screw 32 rotating shaft to rotate the transfer screw 32.

따라서 상기 구동모터(33)의 작동에 따라 이송스크류(32)가 회전하게 되면 배출관(30)을 통해 이송관(31)으로 유입된 산화철이 이송관(31) 끝단에 설치된 배출구(34)를 통해 빠져나오게 되는 것이다.Therefore, when the transfer screw 32 rotates according to the operation of the driving motor 33, the iron oxide introduced into the transfer tube 31 through the discharge tube 30 is discharged through the discharge hole 34 installed at the end of the transfer tube 31. Will come out.

한편, 상기 이송관(31)의 배출구(34)를 통해 나오는 산화철을 반응로(10) 내부 저면에 고르게 뿌려주기 위한 도포부를 살펴보면, 상기 배출구(34)에 연결되고 상기 반응로(10) 내측으로 연장되는 연결관(40)과, 이 연결관(40) 외측 선단에 연결설치되어 연결관(40) 내부로 고압의 에어를 공급하기 위한 에어관(41), 상기 연결관(40) 내측선단에 연결되고 반응로(10) 내주면을 따라 설치되는 환형의 분사관(42), 이 분사관(42) 하부에 일정간격을 따라 설치되는 분사노즐(43)을 포함한다.On the other hand, looking at the coating portion for evenly spraying the iron oxide coming through the outlet 34 of the transfer pipe 31 to the inner bottom of the reactor 10, it is connected to the outlet 34 and into the reactor 10 An extension tube 40 and an air tube 41 connected to the outer end of the connector tube 40 to supply high-pressure air into the connector tube 40, and at an inner end of the connector tube 40. It is connected to the annular injection pipe 42 is installed along the inner circumferential surface of the reactor 10, the injection pipe 42 includes a spray nozzle 43 is installed along a predetermined interval.

미설명된 도면 부호 (44)는 상기 연결관(40) 일측에 설치되어 연결관(40)을 개폐하기 위한 솔레노이드밸브이다.Unexplained reference numeral 44 is a solenoid valve installed on one side of the connecting pipe 40 to open and close the connecting pipe 40.

여기서 상기 환형의 분사관은 반응로(10)의 하부에 위치하도록 함이 바람직하다. In this case, the annular injection tube is preferably positioned below the reactor 10.                     

이하 본 발명의 작용에 대해 설명한다.Hereinafter will be described the operation of the present invention.

수집탱크(20) 내의 산화철은 배출관(30)을 통해 이송관(31)으로 유입되고 이 상태에서 반응로(10)의 초기작동 또는 재가동시 산화철을 도포할 필요성이 있는 경우에는 구동모터(33)의 작동과 솔레노이드밸브(44)의 개방작동에 의해 상기와 같은 이송관(31)으로 유입된 산화철을 간편하게 반응로(10) 바닥에 두포시킬 수 있게 된다.The iron oxide in the collection tank 20 flows into the transfer pipe 31 through the discharge pipe 30, and in this state, when there is a need to apply iron oxide during the initial operation or restart of the reactor 10, the driving motor 33 By the operation of the opening of the solenoid valve 44 and the iron oxide introduced into the transfer pipe 31 as described above it is possible to simply hood on the bottom of the reactor (10).

즉, 구동모터(33)가 작동되면 구동모터(33)의 회전축에 연결되어 있는 이송스크류(32)가 이송관(31) 내부에서 회전하게 되어 상기 배출관(30)을 통해 이송관(31)으로 유입된 산화철은 이송스크류(32)를 따라 이송관(31)의 배출구(34)쪽으로 밀려나오게 된다.That is, when the driving motor 33 is operated, the transfer screw 32 connected to the rotation shaft of the drive motor 33 rotates in the transfer tube 31 to the transfer tube 31 through the discharge tube 30. The introduced iron oxide is pushed toward the outlet 34 of the transfer pipe 31 along the transfer screw 32.

이송스크류(32)를 따라 이송된 산화철은 이송관(31)의 하부에 설치된 배출구(34)를 통해 낙하되어 배출구(34)에 연결설치된 연결관(40)으로 유입된다.The iron oxide transferred along the transfer screw 32 is dropped through the outlet 34 installed in the lower portion of the transfer pipe 31 and flows into the connection pipe 40 installed at the outlet 34.

여기서 상기 연결관(40)으로는 에어관(41)이 연결되어 고압의 에어가 상기 연결관(40) 내부로 유입됨에 따라 산화철은 에어와 함께 연결관(40)을 따라 반응로(10) 내부의 환형 분사관(42)으로 보내지게 된다.Here, the air pipe 41 is connected to the connection pipe 40, and as the high-pressure air flows into the connection pipe 40, the iron oxide is inside the reactor 10 along the connection pipe 40 together with the air. It is sent to the annular injection pipe (42).

물론 상기 연결관(40)에 설치된 솔레노이드밸브(44)는 개방되어 있는 상태이다.Of course, the solenoid valve 44 installed in the connecting pipe 40 is in an open state.

분사관(42)으로 유입된 산화철은 고압의 에어에 의해 분사관(42) 하부에 설치된 다수개의 분사노즐(43)을 통해 분사되어 반응로(10) 바닥으로 고르게 뿌려지게 되는 것이다. Iron oxide introduced into the injection pipe 42 is sprayed through a plurality of injection nozzles 43 installed in the lower injection pipe 42 by the high-pressure air is to be evenly sprayed to the bottom of the reactor (10).                     

한편, 산화철이 반응로(10)의 바닥에 일정두께로 도포되면 반응로(10)는 정상 운전상태로 들어가게 되며, 구동모터(33)는 작동을 멈추게 되고 연결관(40)에 설치된 솔레노이드밸브(44)는 차단작동되어 산화철의 도포작업을 마치게 된다.On the other hand, when iron oxide is applied to the bottom of the reactor 10 to a certain thickness, the reactor 10 enters the normal operating state, the drive motor 33 is stopped operation and the solenoid valve (installed in the connecting pipe 40) 44) is cut off to finish the application of iron oxide.

이상 설명한 바와 같이 본 발명에 의한 산 회수설비 반응로의 산화철 공급장치에 의하면, 산화철을 반응로 저부에 도포하는 작업에 소요되는 시간과 노력을 줄일 수 있고 이에 따라 생산성을 높일 수 있는 잇점이 있다.As described above, according to the iron oxide supply apparatus of the acid recovery equipment reactor according to the present invention, it is possible to reduce the time and effort required to apply the iron oxide to the bottom of the reactor, thereby increasing the productivity.

또한, 산화철 비산에 의한 환경오염을 방지할 수 있는 효과가 있다.In addition, there is an effect that can prevent the environmental pollution due to iron oxide scattering.

Claims (3)

폐산을 가열하여 산화철과 산가스로 분리하기 위한 반응로와, 이 반응로에서 만들어진 산화철을 저장하는 수집탱크를 포함하는 산회수설비에 있어서, In an acid recovery system comprising a reactor for heating waste acid to separate iron oxide and acid gas, and a collection tank for storing iron oxide produced in the reactor, 상기 산화철 수집탱크 하부에 설치되어 산화철을 반응로로 공급하기 위한 공급부와;A supply unit installed below the iron oxide collection tank to supply iron oxide to the reactor; 상기 공급부에 연결되고 상기 반응로 내에 설치되어 공급된 산화철을 반응로 저부로 분사시키기 위한 도포부를 포함하는 산 회수설비 반응로의 산화철 공급장치.And an applicator connected to the supply unit and installed in the reactor to spray iron oxide supplied to the bottom of the reactor. 제 1 항에 있어서, 상기 공급부는 상기 수집탱크 하부 일측에 연통설치되어 산화철이 흘러나오도록 된 배출관과, 이 배출관에 연결설치되어 반응로쪽으로 연장되는 이송관, 이 이송관 내부에 설치되어 산화철을 이송시키기 위한 이송스크류, 상기 이송관 끝단에 설치되고 상기 이송스크류에 연결되어 이송스크류를 회전시키기 위한 구동모터를 포함하는 산 회수설비 반응로의 산화철 공급장치.According to claim 1, wherein the supply unit is connected to the lower side of the collection tank and the discharge pipe to the iron oxide flows out, the transfer pipe is connected to the discharge pipe is installed toward the reactor, the inside of the transfer pipe is installed iron oxide The iron oxide supply apparatus of the acid recovery equipment reactor comprising a transfer screw for transferring, a drive motor installed at the end of the transfer pipe and connected to the transfer screw to rotate the transfer screw. 제 2 항에 있어서, 상기 도포부는 상기 이송관 끝단의 배출구에 연결되고 상기 반응로 내측으로 연장되는 연결관과, 이 연결관 외측 선단에 연결설치되어 연결관 내부로 고압의 에어를 공급하기 위한 에어관, 상기 연결관 내측선단에 연결되고 반응로 내주면을 따라 설치되는 환형의 분사관, 이 분사관 하부에 일정간격을 따라 설치되는 분사노즐을 포함하는 산 회수설비 반응로의 산화철 공급장치.According to claim 2, wherein the applicator is connected to the discharge port of the end of the transfer pipe and extending into the reaction furnace, the connection pipe is installed on the outer end of the connection pipe for supplying high-pressure air into the connection pipe An iron oxide supplying apparatus for an acid recovery plant reactor comprising a pipe, an annular injection pipe connected to the inner end of the connection pipe and installed along an inner circumferential surface of the reactor, and injection nozzles installed at predetermined intervals below the injection pipe.
KR1020020051622A 2002-08-29 2002-08-29 Device for supplying oxidized steel of fluidized bed reactor in hydrochloric acid facility KR100923465B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109205561A (en) * 2018-09-25 2019-01-15 李晓垚 A kind of industrial concentrating hydrochloric acid recovery method

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Publication number Priority date Publication date Assignee Title
JPH07109589A (en) * 1993-10-12 1995-04-25 Nisshin Steel Co Ltd Method for recovering and circulating oxide scale in steel strip producing equipment
KR19990025734U (en) * 1997-12-17 1999-07-05 이구택 Cyclone dust collector
KR20010005346A (en) * 1999-06-30 2001-01-15 이구택 The device for dechlorination
JP2001026426A (en) * 1999-07-14 2001-01-30 Kawasaki Steel Corp Method for supplying aqueous solution of iron chloride to roasting furnace and supplying apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07109589A (en) * 1993-10-12 1995-04-25 Nisshin Steel Co Ltd Method for recovering and circulating oxide scale in steel strip producing equipment
KR19990025734U (en) * 1997-12-17 1999-07-05 이구택 Cyclone dust collector
KR20010005346A (en) * 1999-06-30 2001-01-15 이구택 The device for dechlorination
JP2001026426A (en) * 1999-07-14 2001-01-30 Kawasaki Steel Corp Method for supplying aqueous solution of iron chloride to roasting furnace and supplying apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109205561A (en) * 2018-09-25 2019-01-15 李晓垚 A kind of industrial concentrating hydrochloric acid recovery method

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