JPS6347317A - Smelting, reducing and refining equipment - Google Patents

Smelting, reducing and refining equipment

Info

Publication number
JPS6347317A
JPS6347317A JP61192472A JP19247286A JPS6347317A JP S6347317 A JPS6347317 A JP S6347317A JP 61192472 A JP61192472 A JP 61192472A JP 19247286 A JP19247286 A JP 19247286A JP S6347317 A JPS6347317 A JP S6347317A
Authority
JP
Japan
Prior art keywords
dust
exhaust gas
heat
main body
smelting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP61192472A
Other languages
Japanese (ja)
Inventor
Shiro Fujii
史朗 藤井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP61192472A priority Critical patent/JPS6347317A/en
Publication of JPS6347317A publication Critical patent/JPS6347317A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

Landscapes

  • Manufacture Of Iron (AREA)

Abstract

PURPOSE:To collect dust from a high-temp. exhaust gas which contains dust and is discharged from a smelting and reducing furnace for producing a molten iron from iron ore with a high dust removing rate without losing the sensible heat possessed by said exhaust gas by bringing the above-mentioned exhaust gas into contact with many specific massive heat resistant materials. CONSTITUTION:An inlet 6 and an outlet 7 are provided in a flow passage for the high-temp. exhaust gas which contains a large amt. of the dust and is discharged from the smelting and reducing furnace for producing the molten iron directly from the iron ore. A dust collector body 5 which has the sectional area slightly larger than the sectional area of the inlet and the outlet and has grid members 9, 10 made of ceramics on the inlet and outlet sides is formed between said inlet and outlet. Many ceramic balls 11 are packed therein and are gradually moved in this state from above to below. The dust-contg. high-temp. exhaust gas is passed through the inside of such ceramic balls 11 to stick the dust 20 in the exhaust gas to the balls. The balls are rolled onto a sieving device 19 where the dust 20 stuck thereto is separated to the under side of the sieve 19. Since the dust collector is not wet operated, the dust is collected at the high dust removing efficiency and the exhaust gas is cleaned without decreasing the sensible heat possessed by the exhaust gas.

Description

【発明の詳細な説明】 [産業上の利用分野] この発明は、鉄鉱石を石炭及び石灰と共に精錬炉内の溶
銑中に吹込み、ランス及び底部羽口がら酸素ガスを吹込
んで溶銑を得る溶融還元1tlI設備に関し、更に詳述
すれば、溶融還元炉から排出される排ガス中の塵を熱効
率良く集塵することができる溶融還元精錬設備に関する
[Detailed Description of the Invention] [Industrial Application Field] This invention is a melting process in which iron ore is blown into molten pig iron in a smelting furnace together with coal and lime, and oxygen gas is blown into the molten pig iron through a lance and a bottom tuyere. The present invention relates to reduction 1tlI equipment, and more specifically, relates to a smelting reduction refining equipment that can collect dust in exhaust gas discharged from a smelting reduction furnace with high thermal efficiency.

[従来の技術] 溶融還元績!!@は高炉製鉄法に代るものであり、高炉
製鉄法においては、高炉の設漏費が高く広大な敷地が必
要であるという高炉製鉄法の欠点を解消すべく、近年に
至り開発されたものである。このような溶融還元精錬法
においては、精錬炉内の溶銑中に炉底に設けた羽口から
予備還元された鉱石並びに粉末状の石炭及び石灰を吹込
み、更に別の羽口から酸素ガスを溶銑中に吹込むと共に
、炉頂部から炉内に装入されたランスを介して溶銑に酸
素ガスを吹付ける。そうすると、石炭が溶銑中に溶解す
ると共に、鉱石が石炭中の炭素によって還元される。溶
銑から発生するCoガスはランスから吹付けられる酸素
ガスによって2次燃焼されてCO2ガスになる。このC
O2ガスの顕熱は溶銑上を覆っているフォーミング状の
スラグに伝達され、次いで、溶銑に戻される。
[Conventional technology] Melting reduction results! ! @ is an alternative to the blast-furnace iron-making method, which was developed in recent years to overcome the disadvantages of the blast-furnace iron-making method, such as high installation and leakage costs and the need for a large site. It is. In such a smelting reduction smelting method, pre-reduced ore, powdered coal and lime are injected into the hot metal in the smelting furnace through a tuyere provided at the bottom of the furnace, and oxygen gas is injected through another tuyere. Oxygen gas is injected into the hot metal and is also blown into the hot metal from the top of the furnace through a lance inserted into the furnace. Then, the coal is dissolved in the hot metal, and the ore is reduced by the carbon in the coal. Co gas generated from hot metal is secondary combusted by oxygen gas blown from a lance and becomes CO2 gas. This C
The sensible heat of the O2 gas is transferred to the forming slag covering the hot metal, and then returned to the hot metal.

[発明が解決しようとする問題点] ところで、この溶融還元プロセスにおいては、溶融還元
炉から高温の排ガスと共に、ダストが排出されるのでこ
のダストを除去する必要があるが、このダストは微細且
つ高温であり、しがも多量に発生するために、従来、集
塵効率が高いベンチュリスクラバ等の湿式集塵機により
ダストを除去している。しかしながら、湿式集塵機の場
合には、琲ガスの集塵処理の際に供給する水による熱損
失が大きいので、排ガスのエネルギを有効に回収するこ
とができないという問題点がある。即ち、高温部分にお
いては、排ガスの輻射熱を回収することができるが、排
ガスの熱エネルギが供給水により消費されてしまい、下
流部においては輻射熱以外の顕熱を回収することが困難
である。この問題点を回避するためにバグフィルタ等の
高性能の乾式am機を使用することが考えられるが、こ
れらの乾式集塵機の場合には耐熱温度が約300℃と低
く、高温排ガスの集塵に使用することができない。
[Problems to be Solved by the Invention] Incidentally, in this smelting reduction process, dust is discharged from the smelting reduction furnace along with high-temperature exhaust gas, so it is necessary to remove this dust. Since a large amount of dust is generated, conventionally, dust is removed using a wet dust collector such as a Venturi scrubber, which has a high dust collection efficiency. However, in the case of a wet type dust collector, there is a problem that the energy of the exhaust gas cannot be effectively recovered because the heat loss caused by the water supplied during the dust collection process of dust gas is large. That is, in the high temperature section, the radiant heat of the exhaust gas can be recovered, but the thermal energy of the exhaust gas is consumed by the supplied water, and it is difficult to recover sensible heat other than the radiant heat in the downstream section. In order to avoid this problem, it is possible to use a high-performance dry AM machine such as a bag filter, but these dry dust collectors have a low heat resistance of about 300°C, making it difficult to collect dust from high-temperature exhaust gas. cannot be used.

この発明はかかる事情に鑑みてなされたものであって、
集塵効率が高く、熱損失が小さく、高温にも耐え得る集
塵機を備えた溶融還元精111設備を提供することを目
的とする。
This invention was made in view of such circumstances, and
It is an object of the present invention to provide a melt reduction refinery 111 equipment equipped with a dust collector that has high dust collection efficiency, low heat loss, and can withstand high temperatures.

[問題点を解決するための手段] この発明に係る溶融精錬設備は、溶融還元炉と、この溶
融還元炉から発生する排ガス中の塵を集1する東1M装
置とを有する溶融還元精錬設備であって、前記集M装置
は、排ガス通流路を有°する装置本体と、この装置本体
内に充填され排ガス中の塵を捕集する複数個の塊状耐熱
物質と、この塊状耐熱物質を前記装置本体に連続的に供
給する供給手段と、この塊状耐熱物質を前記装置本体か
ら連続的に排出する排出手段と、前記排ガス通流路で捕
集された膚を前記塊状耐熱物質から分離する分離手段と
、分離後の塊状耐熱物質を前記供給手段に返還する返還
手段とを有することを特徴とする。
[Means for Solving the Problems] The smelting and refining equipment according to the present invention is a smelting and refining equipment that has a smelting and reducing furnace and an East 1M device that collects dust in the exhaust gas generated from the smelting and reducing furnace. The M collection device includes a device main body having an exhaust gas passage, a plurality of heat-resistant lumps filled in the device main body for collecting dust in the exhaust gas, and a heat-resistant lump material that collects dust in the exhaust gas. a supply means for continuously supplying the heat-resistant material to the device body; a discharge device for continuously discharging the heat-resistant mass from the heat-resistant mass; and a separation means for separating the skin collected in the exhaust gas passage from the heat-resistant mass. and a return means for returning the bulk heat-resistant material after separation to the supply means.

この場合に、前記装置本体は、その排ガス通流路の中央
部の断面積がその入口及び出口の断面積よりも拡大され
ていることが好ましい。
In this case, it is preferable that the cross-sectional area of the central part of the exhaust gas passage in the apparatus main body is larger than the cross-sectional area of the inlet and outlet.

[作用] この発明においては、溶融還元炉から発生する排ガス中
の塵を集塵する際に、集塵装置の装置本体内に塊状耐熱
物質を充填させ、この塊状耐熱物質を供給手段により連
続的に前記排ガス通流路に供給すると共に、これを排出
手段により連続的に前記装置本体から排出する。そして
、排ガスをこの塊状耐熱物質に衝突させることにより、
排ガス中の塵を連続的に付着除去する。その後、分離手
段により塊状耐熱物質から塵を分離し、返還手段により
塊状耐熱物質を供給手段に返還する。このように、乾式
で集塵することができ、しかも、塵を分離した後に返還
手段により塊状耐熱物質を供給手段に返還するので、排
ガスの熱損失が小さい。
[Function] In this invention, when collecting dust in the exhaust gas generated from the smelting reduction furnace, the device body of the dust collector is filled with a lumpy heat-resistant material, and the lumpy heat-resistant material is continuously supplied by the supply means. The exhaust gas is supplied to the exhaust gas passage, and is continuously discharged from the apparatus main body by the exhaust means. By colliding the exhaust gas with this lumpy heat-resistant material,
Continuously removes dust from exhaust gas. Thereafter, the separating means separates dust from the lumpy heat-resistant material, and the returning means returns the lumpy heat-resistant material to the supply means. In this way, dust can be collected in a dry manner, and since the bulk heat-resistant material is returned to the supply means by the return means after separating the dust, the heat loss of the exhaust gas is small.

また、塊状耐熱物質を連続的に装置本体に供給し、装置
本体から排出するので、集塵効率が高い。更に、高温の
塵を耐熱物質に付着させるので、耐熱温度が高い。
Furthermore, since the bulk heat-resistant material is continuously supplied to the apparatus main body and discharged from the apparatus main body, dust collection efficiency is high. Furthermore, since high-temperature dust is attached to a heat-resistant material, the heat resistance is high.

[実施例] 第1図はこの発明の実施例に係る溶融還元精錬設備の集
塵機を示す模式図、第2図はこの実施例に係る溶融還元
精錬設備を示すブロック図である。
[Example] Fig. 1 is a schematic diagram showing a dust collector of a smelting reduction refining equipment according to an embodiment of the present invention, and Fig. 2 is a block diagram showing a smelting reduction refining equipment according to this embodiment.

溶!!還元炉1にて発生した高温の排ガスは、予備還元
炉2に送られ、鉱石の予備還元に使用される。
Melt! ! High-temperature exhaust gas generated in the reduction furnace 1 is sent to the preliminary reduction furnace 2 and used for preliminary reduction of ore.

この予備還元炉2から排出された排ガスは集塵機3に供
給され集塵された後、下工程4に供給される。
The exhaust gas discharged from this preliminary reduction furnace 2 is supplied to a dust collector 3 to collect dust, and then supplied to a lower process 4.

集塵機3の本体5は排ガス人口6と排ガス出ロアとを有
し、内部に排ガスが通流する。そして、この本体5はそ
の中央部8の断面積が排ガス入口6及び排ガス出ロアの
断面積よりも大きく構成されている。この本体5の中央
部8には、排ガス入口6側と排ガス出ロア側に夫々セラ
ミック製で格子状をなす格子部材9,10が設けられて
おり、この格子部材9.10の間にセラミックボール1
1が充填されるようになっている。そして、このセラミ
ックボール11に本体5を通流する排ガスが衝突するこ
とにより、排ガス中のダスト20が付着除去されるよう
になっている。本体5の上方には、ホッパ12が設置さ
れており、このホッパ12はバルブ13、サブホッパ1
4及びバルブ15を介して本体5の中央部8の上端に連
結されている。そして、バルブ13.15が開けられる
ことによりセラミックボール11がメインホッパ12か
ら連続的に中央部8に供給される。また、中央部8の下
端にはバルブ16が設けられており、このバルブ16が
開けられることによりセラミックボール11が中央部8
から連続的に排出される。
The main body 5 of the dust collector 3 has an exhaust gas inlet 6 and an exhaust gas outlet lower part, and exhaust gas flows therein. The main body 5 is configured such that the cross-sectional area of the central portion 8 thereof is larger than the cross-sectional areas of the exhaust gas inlet 6 and the exhaust gas outlet lower part. In the central part 8 of the main body 5, ceramic grid members 9 and 10 are provided on the exhaust gas inlet 6 side and the exhaust gas outlet lower side, respectively. Ceramic balls are placed between the grid members 9 and 10. 1
1 is filled. When the exhaust gas flowing through the main body 5 collides with the ceramic balls 11, the dust 20 in the exhaust gas is attached and removed. A hopper 12 is installed above the main body 5, and this hopper 12 has a valve 13 and a sub-hopper 1.
4 and a valve 15 to the upper end of the central portion 8 of the main body 5. Then, by opening the valves 13.15, the ceramic balls 11 are continuously supplied from the main hopper 12 to the central portion 8. Further, a valve 16 is provided at the lower end of the central portion 8, and when this valve 16 is opened, the ceramic balls 11 are moved to the central portion 8.
is continuously discharged from

この場合にバルブ13.15.16の開度を調節するこ
とにより、セラミックボール11の供給量及び排出量を
11節するようになっている。バルブ16の下方には篩
装置19が設置されており、この篩装置19にはダスト
20よりも粗い目の篩が張られている。そして、ダスト
20が付着したセラミックボール11をこの篩装置19
上に落下させ、例えば撮動装置(図示せず)により篩装
置19を振動させて、ダスト20のみを、¥S装置19
の篩を通過させる。この篩部材19の下方にはホッパ2
2が設置されており、このホッパ22には篩を通過した
後のダスト20が貯蔵される。
In this case, by adjusting the opening degrees of the valves 13, 15, and 16, the amount of supply and discharge of the ceramic balls 11 can be adjusted to 11 times. A sieve device 19 is installed below the valve 16, and a sieve with a mesh coarser than that of the dust 20 is attached to this sieve device 19. Then, the ceramic balls 11 with the dust 20 attached are removed from the sieve device 19.
For example, by vibrating the sieve device 19 using a photographing device (not shown), only the dust 20 is removed from the ¥S device 19.
Pass through the sieve. Below this sieve member 19 is a hopper 2.
2 is installed, and this hopper 22 stores the dust 20 after passing through the sieve.

このホッパ22の下方にはバルブ23を介してサブホッ
パ23が設置されており、このサブホッパ24の下端に
はバルブ25が設けられている。そして、バルブ23.
25のRr!1.をv4節して所定量のダスト2oをト
ラック等の搬送手段に供給し、このダスト20を目的地
に搬送するようになっている。また、前記篩装置19は
一方に傾斜しており、篩を通過しないセラミックボール
11がその上を転がるようになっていて、このセラミッ
クボール11は、篩装置19の下側方に設けられたホッ
パ26に供給される。更に、この篩装置19にはその上
方に保温カバー21が設置されており、セラミックボー
ル11を保温する。ホッパ26に供給されたセラミック
ボール11はバルブ27を介してコンベア(図示せず)
に供給され、セラミックボール11はこのコンベアによ
り前記ホッパ12に返還される。なお、このコンベアに
も保温カバーが設置されており、セラミックボール11
を保温するようになっている。
A sub-hopper 23 is installed below this hopper 22 via a valve 23, and a valve 25 is provided at the lower end of this sub-hopper 24. And valve 23.
25 Rr! 1. v4, a predetermined amount of dust 2o is supplied to a transport means such as a truck, and this dust 20 is transported to a destination. Further, the sieve device 19 is inclined to one side so that the ceramic balls 11 that do not pass through the sieve roll on it. 26. Furthermore, a heat insulating cover 21 is installed above the sieve device 19 to keep the ceramic balls 11 warm. The ceramic balls 11 supplied to the hopper 26 are conveyed via a valve 27 to a conveyor (not shown).
The ceramic balls 11 are returned to the hopper 12 by this conveyor. In addition, a heat insulating cover is also installed on this conveyor, and the ceramic balls 11
It is designed to keep warm.

このように構成された溶融還元精錬設備においては、溶
融還元炉1で発生した高温の排ガスは、予備還元炉2で
鉱石の還元に使用された後、集襄13に供給される。集
塵機3においては、本体5の排ガス人口6から排ガスが
導入され、格子部材9を介してセラミックボール11が
充填された本体5の中央部8に供給される。この中央部
8においては、排ガス中のダスト20がセラミックボー
ル11に衝突して付着する。その後、この排ガスは格子
部材10を介して排ガス出ロアから流出し、下工程に供
給される。一方、バルブ13.15゜16を調節して、
セラミックボール11のホッパ12から供給される量、
及び、中央部8から排出される伍を調節して、セラミッ
クボール11を中央部8にて所定速度で流動させる。バ
ルブ16を介して排出されたダスト20が付着したセラ
ミックボール11は、篩装置1つ上に供給される。そし
て、ダスト20が篩を通過し、セラミックボール11か
ら分離される。分離されたダスト20はホッパ22.2
4を介してトラック等の搬送装手段により目的地に搬送
される。この場合に、ダスト20は乾式で集塵されるの
で、このダスト20の主成分はFeOである。従来の湿
式集塵においては水を使用するためダストの主成分がF
e3O4であり、利用されずに投棄されていたが、この
FeOは高級磁性材料等に利用される。
In the smelting reduction refining equipment configured as described above, the high temperature exhaust gas generated in the smelting reduction furnace 1 is used for reducing ore in the preliminary reduction furnace 2 and then supplied to the collection shed 13. In the dust collector 3, exhaust gas is introduced from the exhaust gas port 6 of the main body 5, and is supplied via the grid member 9 to the central portion 8 of the main body 5 filled with ceramic balls 11. In this central portion 8, dust 20 in the exhaust gas collides with and adheres to the ceramic balls 11. Thereafter, this exhaust gas flows out from the exhaust gas outlet lower via the grid member 10 and is supplied to the lower process. Meanwhile, adjust valve 13.15°16,
the amount of ceramic balls 11 supplied from the hopper 12;
The ceramic balls 11 are caused to flow at a predetermined speed in the central portion 8 by adjusting the amount of gas discharged from the central portion 8. The ceramic balls 11 with dust 20 adhering to them are discharged through the valve 16 and are fed onto one sieving device. Then, the dust 20 passes through the sieve and is separated from the ceramic balls 11. The separated dust 20 is transferred to the hopper 22.2.
4, and is transported to the destination by transport means such as a truck. In this case, since the dust 20 is collected in a dry manner, the main component of the dust 20 is FeO. In conventional wet dust collection, water is used, so the main component of dust is F.
This FeO is e3O4 and was discarded without being used, but this FeO is used in high-grade magnetic materials.

一方、中央部8から排出されたセラミックボール11は
、l11t19上を転がってホッパ26に供給され、こ
のホッパ26からコンベアによりホッパ12に返還され
る。この場合に、セラミックボール11は保)温カバー
21により保温され、コンベアにおいても図示しない保
温カバーで保温さ机る。
On the other hand, the ceramic balls 11 discharged from the central portion 8 roll on l11t19 and are supplied to the hopper 26, and from this hopper 26 are returned to the hopper 12 by a conveyor. In this case, the ceramic balls 11 are kept warm by a heat insulating cover 21, and the conveyor is also kept warm by a heat insulating cover (not shown).

このように、乾式で集塵することができ、更に、ダスト
20を分離した後にコンベアによりセラミックボール1
1をホッパ12に返還するので、奪われる熱mは放冷に
よるものだけであり、熱損失が小さい。しかも、gia
nt!11上に保温カバー21を設置し、コンベアにも
保1カバーをIffするので、一層熱損失を小さくする
ことができる。
In this way, dust can be collected in a dry manner, and furthermore, after separating the dust 20, the ceramic balls 1 are collected by a conveyor.
1 is returned to the hopper 12, the heat m removed is only due to cooling, and the heat loss is small. Moreover, gia
nt! Since the heat insulating cover 21 is installed on the conveyor 11 and the heat insulating cover 21 is placed on the conveyor as well, heat loss can be further reduced.

また、セラミックボール11が本体5の中央部8の中を
連続的移動するので、中央部8内の排ガス衝突部分に常
にダスト2oが付着していないセラミックボール11を
供給することができ、集塵効率が高い。しかも、排ガス
人口6及び出ロアの断面積より中央部8の断面積のほう
が大きくなるため、この中央部8における排ガスの流速
が小さくなり、一層集塵効率を高くすることができる。
In addition, since the ceramic balls 11 continuously move within the central portion 8 of the main body 5, the ceramic balls 11 free of dust 2o can always be supplied to the exhaust gas colliding portion within the central portion 8, allowing dust collection. High efficiency. Moreover, since the cross-sectional area of the central portion 8 is larger than the cross-sectional area of the exhaust gas population 6 and the outlet lower, the flow velocity of the exhaust gas in the central portion 8 is reduced, and the dust collection efficiency can be further increased.

更に、高温のダスト20を耐熱温度が高いセラミックボ
ール11に付着させるので、耐熱温度が高い。
Furthermore, since the high-temperature dust 20 is attached to the ceramic balls 11, which have a high heat-resistant temperature, the heat-resistant temperature is high.

[発明の効果〕 この発明によれば、塊状耐熱物質を集塵8置の装置本体
に充填させ、この塊状耐熱物質を供給手段により連続的
に装置本体に供給すると共に、これを排出手段により連
続的に排出させておき、装置本体内の塊状耐熱物質に排
ガスを衝突させて排ガス中の塵を付着除去した後、分離
手段により塊状耐熱物質から塵を分離し、返還手段によ
り塊状耐熱物質を供給手段に返還する。従って、乾式で
集塵することができ、しかも塵を分離した後に返還手段
により塊状耐熱物質を供給手段に返還して再び集塵に使
用するので、排ガスの熱損失を小さくすることができる
。また、塊状耐熱物質を連続的に装置本体に供給し、装
置本体から排出するので集塵効率を高めることができる
。更に、高温の塵を耐熱物質に付着させるので耐熱温度
が高い。
[Effects of the Invention] According to the present invention, the heat-resistant mass is filled into the main body of the device with eight dust collectors, the heat-resistant mass is continuously supplied to the main body of the device by the supply means, and the heat-resistant mass is continuously supplied to the main body of the device by the discharge means. After the dust in the exhaust gas is removed by colliding with the lumpy heat-resistant material in the device body, the dust is separated from the lumpy heat-resistant material by the separation means, and the lumpy heat-resistant material is supplied by the return means. Return to means. Therefore, dust can be collected in a dry manner, and furthermore, after the dust is separated, the bulk heat-resistant material is returned to the supply means by the return means and used again for dust collection, so that the heat loss of the exhaust gas can be reduced. Further, since the bulk heat-resistant material is continuously supplied to the apparatus main body and discharged from the apparatus main body, dust collection efficiency can be improved. Furthermore, since high-temperature dust is attached to a heat-resistant material, it has a high heat resistance.

回収した塵はFeOを主成分としているので、この塵を
高級磁性材料として有効に利用することができる。
Since the collected dust is mainly composed of FeO, this dust can be effectively used as a high-grade magnetic material.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図はこの発明の実施例に係る溶融還元M錬設備にお
ける集塵装置を示す模式図、第2図はこの発明の実施例
に係る溶融還元精錬設備を示すブロック図である。 1:溶融還元炉、3:集塵源、5:本体、6;排ガス入
口、7;排ガス出口、11;セラミックボール、12,
14,22.24.26;ホッパ、13.15.16,
23.25,27:バルブ、19;篩装置 出願人代理人 弁理士 鈴江武彦 第2図
FIG. 1 is a schematic diagram showing a dust collector in a smelting reduction M-smelting facility according to an embodiment of the present invention, and FIG. 2 is a block diagram showing a smelting reduction smelting facility according to an embodiment of the present invention. 1: Melting reduction furnace, 3: Dust collection source, 5: Main body, 6; Exhaust gas inlet, 7; Exhaust gas outlet, 11; Ceramic ball, 12,
14, 22.24.26; Hopper, 13.15.16,
23. 25, 27: Valve, 19; Sieve device applicant's agent Patent attorney Takehiko Suzue Figure 2

Claims (2)

【特許請求の範囲】[Claims] (1)溶融還元炉と、この溶融還元炉から発生する排ガ
ス中の塵を集塵する集塵装置とを有する溶融還元精錬設
備において、前記集塵装置は、排ガス通流路を有する装
置本体と、この装置本体内部に充填され排ガス中の塵を
捕集する複数個の塊状耐熱物質と、この塊状耐熱物質を
前記装置本体に連続的に供給する供給手段と、この塊状
耐熱物質を前記装置本体から連続的に排出する排出手段
と、前記排ガス通流路で捕集された塵を前記塊状耐熱物
質から分離する分離手段と、分離後の塊状耐熱物質を前
記供給手段に返還する返還手段とを有することを特徴と
する溶融還元精錬設備。
(1) In a smelting reduction refining facility that includes a smelting reduction furnace and a dust collector that collects dust in the exhaust gas generated from the smelting reduction furnace, the dust collector has an equipment main body that has an exhaust gas passage. , a plurality of heat-resistant lumps filled inside the apparatus main body to collect dust in exhaust gas; a supply means for continuously supplying the heat-resistant lumps to the apparatus main body; and a supply means for continuously supplying the heat-resistant lumps to the apparatus main body. a discharging means for continuously discharging from the waste gas flow path, a separating means for separating the dust collected in the exhaust gas passage from the lumpy heat-resistant material, and a return means for returning the separated lumpy heat-resistant material to the supply means. Melting reduction refining equipment characterized by having.
(2)前記装置本体は、その排ガス通流路の中央部の断
面積がその入口及び出口の断面積よりも拡大されている
ことを特徴とする特許請求の範囲第1項に記載の溶融還
元精錬設備。
(2) The apparatus main body is characterized in that the cross-sectional area of the central part of the exhaust gas flow path is larger than the cross-sectional area of the inlet and outlet thereof. Refining equipment.
JP61192472A 1986-08-18 1986-08-18 Smelting, reducing and refining equipment Pending JPS6347317A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61192472A JPS6347317A (en) 1986-08-18 1986-08-18 Smelting, reducing and refining equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61192472A JPS6347317A (en) 1986-08-18 1986-08-18 Smelting, reducing and refining equipment

Publications (1)

Publication Number Publication Date
JPS6347317A true JPS6347317A (en) 1988-02-29

Family

ID=16291861

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61192472A Pending JPS6347317A (en) 1986-08-18 1986-08-18 Smelting, reducing and refining equipment

Country Status (1)

Country Link
JP (1) JPS6347317A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003001411A (en) * 2001-06-21 2003-01-08 Matsushita Electric Ind Co Ltd Method and device for removing flux

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003001411A (en) * 2001-06-21 2003-01-08 Matsushita Electric Ind Co Ltd Method and device for removing flux
JP4580590B2 (en) * 2001-06-21 2010-11-17 パナソニック株式会社 Flux removal method and apparatus

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