JPH05255768A - Method for operating mixer for mixing and pelletizing sintering raw material - Google Patents

Method for operating mixer for mixing and pelletizing sintering raw material

Info

Publication number
JPH05255768A
JPH05255768A JP5382192A JP5382192A JPH05255768A JP H05255768 A JPH05255768 A JP H05255768A JP 5382192 A JP5382192 A JP 5382192A JP 5382192 A JP5382192 A JP 5382192A JP H05255768 A JPH05255768 A JP H05255768A
Authority
JP
Japan
Prior art keywords
mixer
sintering raw
raw materials
mixing
belt conveyor
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
JP5382192A
Other languages
Japanese (ja)
Inventor
Yoshifumi Matsunaga
吉史 松永
Koichi Kimura
康一 木村
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
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 filed Critical NKK Corp
Priority to JP5382192A priority Critical patent/JPH05255768A/en
Publication of JPH05255768A publication Critical patent/JPH05255768A/en
Pending legal-status Critical Current

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  • Manufacture And Refinement Of Metals (AREA)

Abstract

PURPOSE:To provide the method for operating the mixer for mixing and pelletizing sintering raw materials without causing the problem of maintenance of the cleaner for a conveyor belt which can effectively remove generated dust. CONSTITUTION:The sintering raw materials supplied from an upstream side belt conveyor 2 are mixed and pelletized by a mixer 1 for mixing and pelletizing the sintering raw materials and are ejected to the downstream side belt conveyor 3. The belt of the upstream side belt conveyor 2 is cleaned by the air cleaner 8 in the mixer 1 at the time and the air in the mixer 1 is sucked by an electrostatic precipitator 6 from the downstream side of the mixer 1 to maintain a negative pressure in the drum.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は、高炉操業に用いられ
る焼結原料の混合・造粒用ミキサーの操業方法に関す
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of operating a mixer for mixing and granulating sintering raw materials used for blast furnace operation.

【0002】[0002]

【従来技術及び発明が解決しようとする課題】高炉操業
に用いられる焼結原料は、回転式のドラムミキサーによ
り混合・造粒される。ミキサーへの焼結原料の装入及び
ミキサーからの原料の排出はベルトコンベアを用いて行
われる。すなわち、上流側ベルトコンベアにより搬送さ
れた焼結原料はミキサーに装入され、回転しているミキ
サーにより混合・造粒され、、造粒終了後下流側ベルト
コンベアに排出される。
2. Description of the Related Art Sintering raw materials used for blast furnace operation are mixed and granulated by a rotary drum mixer. Loading of the sintering raw material into the mixer and discharge of the raw material from the mixer are performed using a belt conveyor. That is, the sintering raw material conveyed by the upstream belt conveyor is loaded into the mixer, mixed and granulated by the rotating mixer, and discharged to the downstream belt conveyor after completion of granulation.

【0003】この操業の際には、原料の装入及び排出に
伴って粉塵が発生する。また、コンベアベルトに付着し
た原料を除去するためにドラム内でクリナーチップによ
り原料を掻き落しているが、この際にも粉塵が発生す
る。
During this operation, dust is generated as the raw materials are charged and discharged. Further, in order to remove the raw material adhering to the conveyor belt, the raw material is scraped off by a cleaner chip in the drum, but dust is also generated at this time.

【0004】このような粉塵を防止するために局所集塵
装置で集塵しているが、発生する粉塵が多量であるため
粉塵除去が不十分である。また、クリーナーチップは使
用により磨耗するため取替え又は調整を行う必要がある
が、操業中はこのようなクリーナーチップの取替え及び
調整を行うことができず、メンテナンス上の問題を有し
ている。
In order to prevent such dust, dust is collected by a local dust collector, but dust removal is insufficient because a large amount of dust is generated. Further, since the cleaner tip is worn out due to use, it needs to be replaced or adjusted, but such a cleaner tip cannot be replaced or adjusted during operation, which causes a problem in maintenance.

【0005】この発明は、かかる事情に鑑みてなされた
ものであって、発生する粉塵を有効に除去することがで
き、コンベアベルトのクリーナーのメンテナンスの問題
が生じない焼結原料の混合・造粒用ミキサーの操業方法
を提供することを目的とする。
The present invention has been made in view of the above circumstances, and it is possible to effectively remove the dust that is generated and to mix and granulate the sintering raw materials that does not cause the maintenance problem of the conveyor belt cleaner. The purpose of the present invention is to provide a method of operating a mixing machine for use.

【0006】[0006]

【課題を解決するための手段】この発明は、上記課題を
解決するために、上流側ベルトコンベアから供給された
焼結原料をミキサーで混合・造粒して下流側ベルトコン
ベアへ搬出する焼結原料の混合・造粒用ミキサーの操業
方法であって、前記ミキサー内においてエアクリーナに
より前記上流側ベルトコンベアのベルトをクリーニング
すると共に、前記ミキサー内の空気をミキサーの下流側
から電気集塵装置により吸引してドラム内を負圧に保つ
ことを特徴とする焼結原料の混合・造粒用ミキサーの操
業方法を提供する。この場合に、電気集塵装置の吸引力
をダンパで調節することが好ましい。
SUMMARY OF THE INVENTION In order to solve the above problems, the present invention is a sintering method in which a sintering raw material supplied from an upstream belt conveyor is mixed and granulated by a mixer and then carried out to a downstream belt conveyor. A method of operating a mixer for mixing and granulating raw materials, comprising cleaning the belt of the upstream belt conveyor with an air cleaner in the mixer, and sucking the air in the mixer from the downstream side of the mixer with an electrostatic precipitator. And a method for operating a mixer for mixing and granulating sintering raw materials, characterized in that the inside of the drum is kept at a negative pressure. In this case, it is preferable to adjust the suction force of the electrostatic precipitator with a damper.

【0007】[0007]

【作用】この発明においては、粉塵除去のために電気集
塵装置を用いる。集塵を目的とする装置としてはバグフ
ィルターが一般的であるが、本願発明者らの検討結果に
よれば焼結前の焼結原料はかなりの量の水分を含んでお
り、実質的にバグフィルターを用いて集塵を行うことが
できないことが判明した。そこで、このような問題が生
じることがない電気集塵装置を用いるのである。そし
て、ミキサー内の空気をミキサーの下流側から電気集塵
装置により吸引してドラム内を負圧に保つので、粉塵が
ドラムの外側に排出されることを有効に防止することが
できる。また、コンベアベルトをエアークリーナーでク
リーニングするため、操業中のメンテナンスの問題が生
じない。さらに、ミキサーと電気集塵装置との間にダン
パを設けてその角度を適宜調節することにより状況に応
じて適切な集塵を行うことができる。
In the present invention, an electrostatic precipitator is used to remove dust. A bag filter is generally used as a device for collecting dust, but according to the study results of the inventors of the present invention, the sintering raw material before sintering contains a considerable amount of water, and thus a bag filter is substantially used. It was found that dust cannot be collected using a filter. Therefore, an electrostatic precipitator that does not cause such a problem is used. Then, since the air inside the mixer is sucked from the downstream side of the mixer by the electric dust collector to keep the inside of the drum at a negative pressure, it is possible to effectively prevent the dust from being discharged to the outside of the drum. In addition, since the conveyor belt is cleaned with an air cleaner, maintenance problems during operation do not occur. Furthermore, by providing a damper between the mixer and the electrostatic precipitator and adjusting the angle thereof appropriately, it is possible to perform appropriate dust collection depending on the situation.

【0008】[0008]

【実施例】以下、この発明の実施例について詳細に説明
する。
Embodiments of the present invention will be described in detail below.

【0009】図1は、この発明に係る焼結原料の混合・
造粒用ミキサーの操業方法を実施するための設備の一例
を示す図である。この設備においては、回転式のドラム
ミキサー1内に上流側ベルトコンベア2から焼結原料を
装入し、回転式ミキサー1により混合・造粒された焼結
原料を下流側ベルトコンベア3に排出する。ドラムミキ
サー1は、例えば矢印A方向に回転し、その回転力によ
ってその中の焼結原料を混合すると共に、焼結原料を造
粒する。
FIG. 1 shows a mixture of sintering raw materials according to the present invention.
It is a figure which shows an example of the equipment for implementing the operating method of the granulation mixer. In this equipment, the sintering raw materials are loaded into the rotary drum mixer 1 from the upstream belt conveyor 2, and the sintering raw materials mixed and granulated by the rotary mixer 1 are discharged to the downstream belt conveyor 3. .. The drum mixer 1 rotates, for example, in the direction of arrow A, mixes the sintering raw materials therein by the rotational force, and granulates the sintering raw materials.

【0010】ドラムミキサー1の下流側にはミキサーの
開放端に連続してケーシング4が設けられており、この
ケーシング4の下方に下流側ベルトコンベア3が位置し
ている。ケーシング4の上端にはダクト5が設けられて
おり、このダクト5は電気集塵装置6に至っている。ま
た、ダクト5にはダンパー7が設けられている。
A casing 4 is provided on the downstream side of the drum mixer 1 continuously from the open end of the mixer, and a downstream belt conveyor 3 is located below the casing 4. A duct 5 is provided at the upper end of the casing 4, and the duct 5 leads to the electrostatic precipitator 6. A damper 7 is provided on the duct 5.

【0011】上流側ベルトコンベア2のベルトは、その
下方に設けられたエアクリーナー8によってクリーニン
グされる。すなわち、ベルトに付着した焼結原料をエア
クリーナー8からのエアーによって除去する。
The belt of the upstream belt conveyor 2 is cleaned by an air cleaner 8 provided below it. That is, the sintering raw material attached to the belt is removed by the air from the air cleaner 8.

【0012】制御装置10は、上流ベルトコンベア2の
モータ11を起動した際に、その信号を受けとり、その
起動に同期してダンパ7、エアクリーナー8及び電気集
塵装置6が作動されるように、ダンパ7のモータ12、
エアクリーナー8及び電気集塵装置6に起動信号を出力
する。すなわち、上流側ベルトコンベア2が作動する
と、ダンパ7、エアクリーナー8及び電気集塵装置6も
自動的に作動するようになっている。
When the motor 11 of the upstream belt conveyor 2 is activated, the control device 10 receives the signal and activates the damper 7, the air cleaner 8 and the electrostatic precipitator 6 in synchronization with the activation. , The motor 12 of the damper 7,
A start signal is output to the air cleaner 8 and the electric dust collector 6. That is, when the upstream belt conveyor 2 is operated, the damper 7, the air cleaner 8 and the electrostatic precipitator 6 are also automatically operated.

【0013】このような設備により焼結原料の混合・造
粒操業を実施する場合には、ドラムミキサー1内の空気
が電気集塵装置6により吸引されて、ドラムミキサー1
内が負圧になる。従って、粉塵がドラムミキサー1の外
側に排出されることを有効に防止しつつ、粉塵を吸引す
ることができる。また、ダンパ7の角度を適宜調節する
ことにより状況に応じて適切な集塵を行うことができ
る。
When the sintering raw materials are mixed and granulated with such equipment, the air in the drum mixer 1 is sucked by the electrostatic precipitator 6 to produce the drum mixer 1.
The inside becomes negative pressure. Therefore, the dust can be sucked while effectively preventing the dust from being discharged to the outside of the drum mixer 1. Further, by appropriately adjusting the angle of the damper 7, it is possible to collect dust appropriately according to the situation.

【0014】さらに、上流側ベルトコンベア2のベルト
に付着した焼結原料をエアークリーナーで除去するた
め、クリーニングチップを使用する場合の操業上の問題
が発生しない。
Further, since the sintering raw material adhering to the belt of the upstream belt conveyor 2 is removed by the air cleaner, there is no operational problem when using the cleaning chip.

【0015】[0015]

【発明の効果】この発明によれば、発生する粉塵を有効
に除去することができ、コンベアベルトのクリーナーの
メンテナンスの問題が生じない焼結原料の混合・造粒用
ミキサーの操業方法が提供される。。
Industrial Applicability According to the present invention, there is provided a method for operating a mixing / granulating mixer for sintering raw materials, which is capable of effectively removing generated dust and does not cause maintenance problems of a conveyor belt cleaner. It .

【図面の簡単な説明】[Brief description of drawings]

【図1】この発明に係る焼結原料の混合・造粒用ミキサ
ーの操業を実施するための設備の一例を示す模式図。
FIG. 1 is a schematic diagram showing an example of equipment for operating a mixer for mixing and granulating sintering raw materials according to the present invention.

【符号の説明】[Explanation of symbols]

1……ドラムミキサー、2……上流側ベルトコンベア、
3……下流側ベルトコンベア、6……電気集塵装置、7
……ダンパ。
1 ... Drum mixer, 2 ... Upstream belt conveyor,
3 ... Downstream belt conveyor, 6 ... Electrostatic precipitator, 7
……damper.

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 上流側ベルトコンベアから供給された焼
結原料をミキサーで混合・造粒して下流側ベルトコンベ
アへ搬出する焼結原料の混合・造粒用ミキサーの操業方
法であって、前記ミキサー内においてエアクリーナによ
り前記上流側ベルトコンベアのベルトをクリーニングす
ると共に、前記ミキサー内の空気をミキサーの下流側か
ら電気集塵装置により吸引してドラム内を負圧に保つこ
とを特徴とする焼結原料の混合・造粒用ミキサーの操業
方法。
1. A method of operating a mixer for mixing and granulating sintering raw materials, wherein the sintering raw materials supplied from an upstream belt conveyor are mixed and granulated by a mixer and carried out to a downstream belt conveyor. Sintering characterized in that while cleaning the belt of the upstream belt conveyor with an air cleaner in the mixer, the air in the mixer is sucked from the downstream side of the mixer by an electrostatic precipitator to maintain a negative pressure in the drum. How to operate a mixer for mixing and granulating raw materials.
【請求項2】 前記電気集塵装置の吸引力をダンパで調
節することを特徴とする請求項1に記載の焼結原料の混
合・造粒用ミキサーの操業方法。
2. The method for operating a mixer for mixing and granulating sintering raw materials according to claim 1, wherein the suction force of the electrostatic precipitator is adjusted by a damper.
JP5382192A 1992-03-12 1992-03-12 Method for operating mixer for mixing and pelletizing sintering raw material Pending JPH05255768A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5382192A JPH05255768A (en) 1992-03-12 1992-03-12 Method for operating mixer for mixing and pelletizing sintering raw material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5382192A JPH05255768A (en) 1992-03-12 1992-03-12 Method for operating mixer for mixing and pelletizing sintering raw material

Publications (1)

Publication Number Publication Date
JPH05255768A true JPH05255768A (en) 1993-10-05

Family

ID=12953459

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5382192A Pending JPH05255768A (en) 1992-03-12 1992-03-12 Method for operating mixer for mixing and pelletizing sintering raw material

Country Status (1)

Country Link
JP (1) JPH05255768A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009110529A1 (en) * 2008-03-05 2009-09-11 国立大学法人 豊橋技術科学大学 Nondestractive test equipment employing squid magnetic sensor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009110529A1 (en) * 2008-03-05 2009-09-11 国立大学法人 豊橋技術科学大学 Nondestractive test equipment employing squid magnetic sensor
US8330458B2 (en) 2008-03-05 2012-12-11 National University Corporation Toyohashi University Of Technology Nondestructive inspection apparatus using squid magnetic sensor
JP5229923B2 (en) * 2008-03-05 2013-07-03 国立大学法人豊橋技術科学大学 Non-destructive inspection device using SQUID magnetic sensor

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