JPS6039416B2 - Method and device for removing harmful substances from waste gas from sintering equipment - Google Patents

Method and device for removing harmful substances from waste gas from sintering equipment

Info

Publication number
JPS6039416B2
JPS6039416B2 JP51049751A JP4975176A JPS6039416B2 JP S6039416 B2 JPS6039416 B2 JP S6039416B2 JP 51049751 A JP51049751 A JP 51049751A JP 4975176 A JP4975176 A JP 4975176A JP S6039416 B2 JPS6039416 B2 JP S6039416B2
Authority
JP
Japan
Prior art keywords
waste gas
harmful substances
gas
sintering
pipe
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.)
Expired
Application number
JP51049751A
Other languages
Japanese (ja)
Other versions
JPS5235164A (en
Inventor
クルト‐ベルナー、ラング
ハンス‐ミヒアエル、シユルテ
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.)
GEA Group AG
Original Assignee
Metallgesellschaft AG
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 Metallgesellschaft AG filed Critical Metallgesellschaft AG
Publication of JPS5235164A publication Critical patent/JPS5235164A/en
Publication of JPS6039416B2 publication Critical patent/JPS6039416B2/en
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/16—Sintering; Agglomerating
    • C22B1/20—Sintering; Agglomerating in sintering machines with movable grates
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H7/00—Devices for suction-kneading massage; Devices for massaging the skin by rubbing or brushing not otherwise provided for
    • A61H7/002—Devices for suction-kneading massage; Devices for massaging the skin by rubbing or brushing not otherwise provided for by rubbing or brushing
    • A61H7/004—Devices for suction-kneading massage; Devices for massaging the skin by rubbing or brushing not otherwise provided for by rubbing or brushing power-driven, e.g. electrical
    • A61H7/005—Devices for suction-kneading massage; Devices for massaging the skin by rubbing or brushing not otherwise provided for by rubbing or brushing power-driven, e.g. electrical hand-held
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H7/00—Devices for suction-kneading massage; Devices for massaging the skin by rubbing or brushing not otherwise provided for
    • A61H7/007—Kneading
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/01—Pretreatment of the gases prior to electrostatic precipitation
    • B03C3/014—Addition of water; Heat exchange, e.g. by condensation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H7/00—Devices for suction-kneading massage; Devices for massaging the skin by rubbing or brushing not otherwise provided for
    • A61H7/007—Kneading
    • A61H2007/009—Kneading having massage elements rotating on parallel output axis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/01—Constructive details
    • A61H2201/0119—Support for the device
    • A61H2201/0153—Support for the device hand-held
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/10—Characteristics of apparatus not provided for in the preceding codes with further special therapeutic means, e.g. electrotherapy, magneto therapy or radiation therapy, chromo therapy, infrared or ultraviolet therapy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/12—Driving means
    • A61H2201/1207—Driving means with electric or magnetic drive
    • A61H2201/1215—Rotary drive

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Dermatology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • Rehabilitation Therapy (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Pain & Pain Management (AREA)
  • Epidemiology (AREA)
  • Manufacturing & Machinery (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Treating Waste Gases (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Electrostatic Separation (AREA)
  • Gas Separation By Absorption (AREA)

Description

【発明の詳細な説明】 本発明は、鉄鉱石の鱗結装置の廃ガス中に含まれる有害
物質を除去するに際し、前記焼結装置の前方領域、中間
領域及び後方領域の夫々の下方に設けられた風箱からの
前記廃ガスの部分流を蓮通管を介してガス補集管内に瓶
集し、こられの廃ガス部分流から粉塵状の前記有害物質
を粉塵構築装置内で除去すると共に、前記隣結装置の中
間領域からの前記廃ガス部分流からガス状又は蒸気状の
前記有害物質をスクラッバによって除去するようにした
齢結装置の廃ガスから有害物質を除去する方法及びその
装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for removing harmful substances contained in waste gas from an iron ore sintering device, which is provided below each of a front region, an intermediate region, and a rear region of the sintering device. A partial flow of the waste gas from the collected wind box is collected in a gas collecting pipe through a lotus pipe, and the hazardous substances in the form of dust are removed from this partial flow of waste gas in a dust construction device. and a method and apparatus for removing hazardous substances from the waste gas of an aging unit, wherein the hazardous substances in gaseous or vapor form are removed by a scrubber from the waste gas partial stream from the intermediate region of the adjacent unit. It is related to.

鉄鉱石の焼結機からの廃ガスには、粉塵の他に有害なガ
ス成分（特に環境を汚染するＳ０２や、非鉄金属の気化
により生じる有害蒸気）が含まれている。In addition to dust, the waste gas from an iron ore sintering machine contains harmful gas components (particularly S02, which pollutes the environment, and harmful vapors generated by vaporization of non-ferrous metals).

有害な粉塵状物質は一般に電気集塵装置によって廃ガス
から除去されるが、有害なガス及び蒸気成分はそのよう
な静電式ガス浄化装置によっては一部分しか或いは全く
除去されず、然も電気集塵装置において凝縮してしまう
。それ故、ガス又は蒸気状の有害成分の除去には、スク
ラッバにおいて通常行なわれる独立したガス浄化処理が
必要である。廃ガス中の有害成分の含有量はたいていご
く僅かであるので、それらを除去するのに、浄化される
べき廃ガスを非常に大量に処理しなければならず、従っ
てこの経費は極めて多くなる。廃ガスをスクラッピング
する費用を節減するために、廃ガス流の一部分であって
生成する有害成分の大部分を含む部分のみを分流させ、
スクラッバに導ぴ〈ことが一般的に行なわれている。ド
イツ連邦共和国特許出願公開第２２５２２４５号明細書
から、鉄鉱石の糠結に際して、競絹帯城の後方部から生
じる廃ガスは少なくとも１６％の酸素を含有しており、
この廃ガスを再び焼絹用空気として擬結帯域内に前方部
から導入し、そして焼結帯城の前方部で生じる廃ガスの
少なくとも一部分をスクラッバに導び〈方法が公知であ
る。この結果、処理すべき廃ガスを４・量にして有害な
ガス成分の大部分を濃縮し、洗液除去することが出来る
。もちろんこの方法においては暁給機上にガスフードを
取付けることが必要である。また、有害なガス成分の大
部分を含む廃ガス分流についてまず機械的に予備集塵し
た後にスクラッバに送り、次いで残りのスクラッピング
されない廃ガス分流と合流させて電気集塵装置に導びく
ことについても記述されている。しかしながら、この方
法の場合、ガスを導出する地点が局在化して固定されて
いる。本発明の目的は、暁結装置から生じる廃ガス中の
有害なガス状成分の発生量やその廃ガスの温度及び発生
量を夫々示す曲線が焼結装置の前後両方向においてシフ
トする場合でも、廃ガスの一分流中に有害なガス状成分
のできるだけ大部分を構築し、これら有害物質をできる
だけ経済的にスクラッバで除去し、同時にできるだけ経
済的かつ十分に廃ガス流から有害な粉塵成分を除去する
ことである。Hazardous dust-like substances are generally removed from the waste gas by electrostatic precipitators, but hazardous gas and vapor components are only partially or not removed by such electrostatic gas purification devices; Condenses in dust equipment. Therefore, the removal of gaseous or vaporous harmful components requires a separate gas purification process, which is usually carried out in a scrubber. Since the content of harmful constituents in the waste gas is usually very small, in order to remove them the waste gas to be purified has to be treated in very large quantities, and the outlay is therefore very high. To save on the cost of scraping waste gas, only the portion of the waste gas stream that contains the majority of the harmful components produced is diverted;
It is common practice to direct the water to a scrubber. From German Patent Application No. 2 252 245, it is learned that during the consolidation of iron ore, the waste gas arising from the rear part of the silk belt contains at least 16% oxygen;
This waste gas is again introduced as sintering air into the pseudo-sintering zone from the front, and at least a portion of the waste gas produced in the front of the sintering band is conducted to a scrubber, as is known in the art. As a result, the amount of waste gas to be treated can be reduced to 4.5 mm, and most of the harmful gas components can be concentrated and removed with the washing liquid. Of course, this method requires the installation of a gas hood on the Dawn Feeder. Additionally, the waste gas stream containing most of the harmful gas components is first mechanically pre-collected before being sent to a scrubber, and then combined with the remaining unscraped waste gas stream and led to an electrostatic precipitator. is also described. However, in this method, the point from which the gas is extracted is localized and fixed. It is an object of the present invention to provide a method for disposing of waste gas even when the curves indicating the generation amount of harmful gaseous components in the waste gas generated from the sintering device, the temperature and the generation amount of the waste gas, respectively, shift in both directions of the front and back of the sintering device. building up as much of the harmful gaseous constituents as possible in a gas sub-stream and removing these harmful substances as economically as possible in a scrubber, and at the same time removing harmful dust constituents from the waste gas stream as economically and efficiently as possible; That's true.

この目的は本発明により次のようにして達成される。This object is achieved according to the invention as follows.

即ち、冒頭に述べた方法において、ガス状又は蒸気状の
有害物質の含有量が低い第１の廃ガス部分流を、前記焼
結装置の前方領域及び後方領域の下方に夫々設けた前記
風箱から蓮通管を介して第１のガス補集管内に橘集し、
第１の電気集塵装置内で約８０〜１００００のガス温度
でこの第１の廃ガス部分流から大部分の前記粉塵状の有
害物質を除去し、次いでこの第１の廃ガス部分流を煙突
に導き、前記ガス状又は蒸気状の有害物質の含有量が比
較的高い第２の廃ガス部分流を、少なくとも前記暁給装
置の中間領域の下方に設けた風箱から運通管を介して第
２のガス補集管内に綾集し、第２の電気集塵装置内で約
１９０〜２５０ｏｏのガス温度でこの第２の廃ガス部分
流から大部分の前記粉塵状の有害物質を除去し、次いで
スクラッバ内で大部分の前記ガス状又は蒸気状の有害物
質を除去してから、この第２の廃ガス部分流を煙突に導
き、その際、前記第１の廃ガス部分流が前記第１の電気
集塵装置（ＥＧＲ）における集塵に好適な温度及び量に
なると共に、前記第２の廃ガス部分流が前記ガス状及び
蒸気状の有害物質の大部分を含有しかつ前記第２の電気
集塵装置（ＥＣＲ）における集塵に好適な温度及び量に
なるように前記各風箱を前記第１又は第２のガス補集管
に各々達通させる。第１及び第２の電気集塵装置は各廃
ガス部分流の量に従って決まる一定のガス量を処理し得
るように夫々設計され、また第２の廃ガス部分流の量は
有害なガス状成分の少なくとも大部分が捕集されるよう
に選び得る。That is, in the method mentioned at the outset, a first waste gas partial stream with a low content of gaseous or vaporous harmful substances is provided in the wind box provided below the front region and the rear region of the sintering device, respectively. Collecting the gas from the lotus through the lotus pipe into the first gas collection pipe,
In a first electrostatic precipitator at a gas temperature of approximately 80 to 10,000 °C, most of the dust-like harmful substances are removed from this first waste gas partial stream and then this first waste gas partial stream is transferred to the chimney. the second waste gas partial stream having a relatively high content of gaseous or vaporous harmful substances is passed through a conveying pipe from a wind box located at least below the intermediate region of the feeder. removing most of the dust-like harmful substances from this second waste gas partial stream in a second electrostatic precipitator at a gas temperature of about 190 to 250 oo; After removing most of the gaseous or vaporous harmful substances in a scrubber, this second waste gas partial stream is then led into the chimney, with the first waste gas partial stream being removed from the first waste gas partial stream. at a temperature and quantity suitable for dust collection in an electrostatic precipitator (EGR) of said second waste gas partial stream containing the majority of said gaseous and vaporous harmful substances and Each of the air boxes is communicated with the first or second gas collection pipe so that the temperature and amount are suitable for dust collection in an electrostatic precipitator (ECR). The first and second electrostatic precipitators are each designed to be able to process a constant gas volume determined by the volume of each waste gas substream, and the volume of the second waste gas substream is determined by the amount of harmful gaseous components. may be selected such that at least a large portion of the

両廃ガス流の量を一定に保持するときには有害な粉塵状
成分の分離効果が良好である。夫々の廃ガスの量がとも
に土１０％変化しても、たし・した欠陥はほとんど認め
られず、従ってその流量は有利な流量であるといえる。
流量が設計値以下では分離効果の低下をきたすことはな
いけれども、電気集塵装涜は過度に大型化し、従って高
価なものとなる。電気集塵装置の集塵又は分離度を良く
するためには、粉塵が好適な抵抗値を示す望ましい温度
範囲に電気集塵装置を保持する必要がある。When the quantities of both waste gas streams are kept constant, the effect of separating harmful dust-like components is good. Even if the amount of each waste gas changes by 10%, almost no defects are observed, and therefore, the flow rate can be said to be an advantageous flow rate.
If the flow rate is less than the design value, the separation effect will not deteriorate, but the electrostatic precipitator will become excessively large and therefore expensive. In order to improve the dust collection or separation of an electrostatic precipitator, it is necessary to maintain the electrostatic precipitator within a desired temperature range in which the dust exhibits a suitable resistance value.

この好適な温度範囲は約８０〜１００℃又は約１９０〜
２５０００である。スクラッバにおけるガス洗糠に際し
ては、第２の電気集塵装置にとって好適なガス流量がス
クラッバにとっても好適なガス流量となるように第２の
電気集塵装置のガス流量に応じてスクラッバが設計され
る。This preferred temperature range is about 80 to 100°C or about 190 to
It is 25,000. When scrubbing with gas in the scrubber, the scrubber is designed according to the gas flow rate of the second electrostatic precipitator so that the gas flow rate suitable for the second electrostatic precipitator is also suitable for the scrubber. .

ガス状の有害成分であるＳ０２の発生状況について述べ
ると、通常の糠結工程では鱗結機の開始端からほ）、そ
の１／３に相当する領域の後端においてかなりの量が発
生し始め、それから著しく発生量が増え、蛾結機の最後
方部（例えば最後の約３つの風箱）の領域で著しく減少
する。Regarding the generation of S02, which is a gaseous harmful component, in the normal sizing process, a considerable amount begins to be generated at the rear end of the area corresponding to 1/3 of the starting end of the sizing machine. , then the production increases significantly and decreases significantly in the region of the rearmost part of the moth-closing machine (for example, about the last three windboxes).

混合物の組成やガス透過性及び操作条件が変動するため
、Ｓ０２の発生量を示す曲線は一定の限界内でシフトし
得る。廃ガスの温度は暁結された混合物から水が放出さ
れるまではほゞ一定でかつ低温に保持されるが、それ以
上は著しく上昇し、燃えつき点（Ｄｍｃｈｂｒｅｎｎｐ
ｕｎｋｔ）に達した後再び低下する。Due to variations in the composition of the mixture, gas permeability and operating conditions, the curve representing the amount of S02 generated can shift within certain limits. The temperature of the waste gas remains approximately constant and low until water is released from the condensed mixture, but beyond that it increases significantly and approaches the burnout point (Dmchbrennp).
unkt) and then decreases again.

この温度曲線の位置や形状にもやはり変化を受ける。廃
ガスが個々の風箱に吸引される量を示す曲線も上記の温
度曲線に依存する。競給機の最初の領域の端部下及び最
後方領域下の各風箱はそれぞれの運遺管を経て第１のガ
ス補集管にも第２のガス補集管にも接続されていてよい
。The position and shape of this temperature curve are also subject to change. The curve showing the amount of waste gas sucked into the individual windboxes also depends on the above temperature curve. Each windbox under the end of the first region and under the rearmost region of the racer may be connected to both the first gas collection pipe and the second gas collection pipe via their respective transport pipes. .

この場合、各達導管にはそれぞれ遮断手段（弁）が設置
され、これによって上記の各風箱から廃ガスを第１又は
第２のガス補集管に選択的に導びき得る。廃ガスのＳ０
２含有量、温度及び量を示す各曲線のシフト又は変動が
起った場合、これら風箱の第１又は第２のガス補集管へ
の蓮通を適当に行なうことにより、上述の両電気集塵装
置及びスクラッバにとっての好適な条件を保したり、或
いはまた適当な妥協点を選び得る。この場合、第１又は
第２のガス補集管への各風箱の蓬通は連続してではない
こ交互に行なう必要もあり得る。廃ガスは風箱から片側
にまたは両側に吸引する。即ち上述の両ガス補集管は両
方とも焼給機の一方の側に配されるか、或いは互いに異
なる側に夫々配されてもよい。非常に幅広い糠絹機の場
合には、両側とも２つのガス補集管が設置されてよい。
好適な廃ガス量の調節や発生するＳ０２の大部分の捕集
のために廃ガス部分流の一方又は両方を好適な温度に調
節することが不可能な場合、一方又は両方の廃ガス部分
流を冷却又は加熱してよい。In this case, a shutoff means (valve) is installed in each conduit, thereby making it possible to selectively guide the waste gas from each of the wind boxes to the first or second gas collecting pipe. Waste gas S0
2. If a shift or fluctuation of the respective curves indicating content, temperature and quantity occurs, the above-mentioned electrical It is possible to maintain favorable conditions for the dust collector and scrubber, or alternatively to choose a suitable compromise. In this case, it may be necessary to connect each wind box to the first or second gas collecting pipe not consecutively but alternately. The waste gas is drawn from the windbox to one side or both sides. That is, both of the above-mentioned gas collection pipes may be arranged on one side of the burner, or they may be arranged on different sides. In the case of very wide bran silk machines, two gas collection pipes can be installed on both sides.
If it is not possible to adjust one or both of the waste gas partial streams to a suitable temperature in order to adjust the waste gas amount in a suitable manner or to capture a large proportion of the generated S02, one or both of the waste gas partial streams may be cooled or heated.

本発明においては、第１の電気集塵装置を約８０〜１０
ぴ０のガス温度で運転する。この場合には、両廃ガス流
は好適な条件に容易に調節される。本発明においては、
第２の電気集塵装置を約１９０〜２５０００のス温度で
運転する。これによって、両廃ガス流は好適な条件に容
易に調節される。本発明による好ましい構成においては
、第１の廃ガス部分流を予め冷却してから第１の電気集
塵装置に導入する。かくして、温度の付加的な調節が必
要な場合、これを簡単かつ安価に行ない得る。本発明に
よる好ましい構成においてはまた、第２の廃ガス部分流
を予め冷却してから第２の電気集塵装置に導入する。In the present invention, the first electrostatic precipitator is approximately 80 to 10
Operate at a gas temperature of 0. In this case, both waste gas streams are easily adjusted to suitable conditions. In the present invention,
The second electrostatic precipitator is operated at a temperature of about 190-25,000°C. Thereby, both waste gas streams can be easily adjusted to suitable conditions. In a preferred embodiment according to the invention, the first waste gas partial stream is precooled before it is introduced into the first electrostatic precipitator. Thus, if additional adjustment of temperature is required, this can be done easily and inexpensively. In a preferred embodiment according to the invention, the second waste gas partial stream is also precooled before being introduced into the second electrostatic precipitator.

かくして、温度の付加的な調節を簡単かつ安価に行ない
得る。このような方法を実施するための装置は、暁結装
置の前方領域及び後方領域の夫々の下方に設けられた風
箱と蓮通管で蓮適すると共に、第１の電気集塵装置及び
この電気集塵装置を介して煙突に夫々連通する第１のガ
ス補集管からなる、ガス状又は蒸気状の有害物質の含有
量が低い第１の廃ガス部分流のための第１の流路と、少
なくとも前記暁結装置の中間領域の下方に設けられた風
箱と蓮通管で運通すると共に、第２の電気集塵装置、ス
クラッバ及びこれらを介して煙突に夫々連通する第２ガ
ス補集管からなる、ガス状又は蒸気状の有害物質の含有
量が比較的高い第２の廃ガス部分流のための第２の流路
と、前記焼結装置の前方領域の後方部分の下方に設けら
れた風箱と前記焼緒装置の後方領域の下方に設けられた
風箱とを前記第１及び第２のガス補集管に蓮適する前記
達通管の蓮適状態を変更させるための手段と、前記焼結
装直の前方領域の後方部分の下方に設けられた前記風箱
と前記凝結装置の後方領域の下方に設けられた前記風箱
とを前記第１及び第２のガス補集管に蓮適する前記連通
管に設けられ、前記変更手段と協働する遮断手段と（バ
ルブ）とを夫々具備することを特徴としている。Additional adjustment of temperature can thus be carried out simply and inexpensively. A device for carrying out such a method includes a wind box and a passage pipe provided below the front and rear regions of the dawning device, and a first electrostatic precipitator and this electric precipitator. a first flow path for a first waste gas partial stream with a low content of gaseous or vaporous harmful substances, consisting of first gas collection pipes each communicating with the chimney via a dust collector; , a second gas collecting device, which is conveyed by a wind box and a lotus pipe provided at least below the intermediate region of the dawning device, and which communicates with the chimney through a second electrostatic precipitator, a scrubber, and these, respectively; a second flow path for a second waste gas partial stream with a relatively high content of gaseous or vaporous harmful substances, consisting of a tube, provided below the rear part of the front region of the sintering device; means for changing the fitting state of the delivery pipe such that the air box provided below the wind box and the air box provided below the rear area of the burning cord device are placed in the first and second gas collecting pipes; and the wind box provided below the rear part of the front area of the sintering unit and the wind box provided below the rear area of the condensation device to collect the first and second gases. The present invention is characterized in that it is provided with a shutoff means (valve), which is provided on the communicating pipe and cooperates with the changing means, respectively.

本発明による好ましい構成においては、蓮通管によって
第１及び第２のガス補集管に接続される風箱が他の風箱
と比較して暁結機の連行方向においてより短かく構成さ
れている。In a preferred configuration according to the present invention, the wind box connected to the first and second gas collection pipes by the lotus pipe is configured to be shorter in the entrainment direction of the tying machine compared to other wind boxes. There is.

これにより、廃ガス流を所定条件に調節することが僅か
の経費でもつて極めて正確に行ない得る。This makes it possible to adjust the waste gas flow to predetermined conditions with great precision and with little outlay.

次に本発明を実施例につき図面を参照して更に詳細に説
明する。Next, the present invention will be described in more detail with reference to the drawings, using examples.

第１図及び第２図に示す焼結装置には矢印方向に移動す
る上側連行路２６が配され、この下方に風箱１〜１５が
設けられている。The sintering apparatus shown in FIGS. 1 and 2 is provided with an upper entrainment path 26 that moves in the direction of the arrow, and wind boxes 1 to 15 are provided below this.

風箱１〜８及び１２〜１５は蓮通管ｌａ〜８ａおよび１
２ａ〜１５ａを経て第１のガス補集管１６に運通してい
る。他方風箱６〜８及び１２〜１４は蓮通管６ｂ〜８ｂ
及び１２ｂ〜１４ｂを経て第２のガス補集管１７に蓮適
している。蓮通管６ａ〜８ａ、６ｂ〜８ｂ、１２ａ〜１
４ａ及び１２ｂ〜１４ｂには夫々遮断弁が配置ごており
、これによって、これらに関連した各風箱はガス補集管
１６又は１７に選択的に接続され得る。風箱６〜８は焼
結機の最初の領域の後端部に存在し、また風箱１２〜１
４は焼結機の終端部に存在している。風箱１〜５は蓮通
管ｌａ〜５ａを経て第１のガス補集管１６と運通し、ま
た風箱９〜１１は連通管９ｂ〜１１ｂを経て第２のガス
補集管１７と運通している。第１のガス補集管１６は第
１の電気集塵袋燈１８に接続され、ここで浄化された廃
ガスは送風機１９及び導管２０を経て煙突２１に導びか
れる。第２のガス補集管１７は第２の電気集塵装置２２
に接続され、ここで粉塵が除去されたガスは送風機２３
を経てスクラッバ２４に導入され、ここでＳ０２が除去
された後に導管２５を経て煙突２１に導びかれる。第１
図において、曲線Ａは焼結機の上側連行路２６の長さ方
向における廃ガスのＳ０２含有量を示し、曲線Ｂは同方
向における温度を示し、曲線Ｃは同方向における廃ガス
量を示す。Wind boxes 1-8 and 12-15 are lotus tubes la-8a and 1
The gas is conveyed to the first gas collection pipe 16 via 2a to 15a. On the other hand, the wind boxes 6 to 8 and 12 to 14 are lotus tubes 6b to 8b.
and 12b to 14b to the second gas collecting pipe 17. Lotus tubes 6a-8a, 6b-8b, 12a-1
4a and 12b to 14b are each provided with a shutoff valve, by means of which each associated windbox can be selectively connected to a gas collecting pipe 16 or 17. Wind boxes 6-8 are located at the rear end of the first region of the sintering machine, and wind boxes 12-1
4 is present at the end of the sintering machine. The wind boxes 1 to 5 communicate with the first gas collection pipe 16 through the lotus pipes la to 5a, and the wind boxes 9 to 11 communicate with the second gas collection pipe 17 through the communication pipes 9b to 11b. are doing. The first gas collecting pipe 16 is connected to a first electric dust collecting bag light 18, and the purified waste gas is guided to a chimney 21 via a blower 19 and a conduit 20. The second gas collection pipe 17 is connected to the second electrostatic precipitator 22
The gas from which dust has been removed is sent to a blower 23.
The gas is introduced into the scrubber 24, where S02 is removed, and then led to the chimney 21 through the conduit 25. 1st
In the figure, curve A shows the S02 content of the waste gas in the longitudinal direction of the upper entrainment channel 26 of the sintering machine, curve B shows the temperature in the same direction, and curve C shows the waste gas amount in the same direction.

なおこの場合、上側連行路２６に対し垂直の方向におい
てこの上側連行路から各曲線までの距離が長い程、それ
だけ各数値が大であることを示す。第３図は本発明によ
る競結機の変形例を示すものであり、その一方の側にお
いて上述の両ガス補集管が変形されている。In this case, the longer the distance from the upper entrainment path to each curve in the direction perpendicular to the upper entrainment path 26, the larger each numerical value becomes. FIG. 3 shows a modification of the bidding machine according to the invention, in which both of the above-mentioned gas collection pipes are modified on one side.

即ち、第１のガス補集管１６が前後２つに分割され、後
方の各風箱からガス補集管１６に吸引された廃ガス流が
冷却器２７で冷却された後に、前方の各風箱からガス補
集管１６に吸引された廃ガス流に合流される。下記表に
は、蓮通関係を種々に異ならせた場合の廃ガスの量、廃
ガス流の温度、第２の廃ガス流に捕集されるＳ０２の量
が夫々示されている。表１では、焼結機の廃ガスの総量
は４４３３２０Ｎで／ｈで、その平均温度は１６５．３
ｏｏである。各実施例において、捕集管１６における第
１の廃ガス流の温度は、第１の電気集塵装置１８の適温
である８０〜１００ｏｏに比べて高過ぎるので、この温
度にまで予め冷却される。表０では、廃ガスの総量がや
はり４４３３２０Ｎで／ｈであるが、その平均温度が低
くなっている。That is, the first gas collection pipe 16 is divided into two parts, front and rear, and after the waste gas flow sucked into the gas collection pipe 16 from each rear wind box is cooled by the cooler 27, It joins the waste gas stream drawn from the box into the gas collection pipe 16. The table below shows the amount of waste gas, the temperature of the waste gas stream, and the amount of S02 collected in the second waste gas stream for different flow relationships. In Table 1, the total amount of waste gas from the sintering machine is 443320N/h, and its average temperature is 165.3
It is oo. In each embodiment, the temperature of the first waste gas stream in the collection tube 16 is too high compared to the suitable temperature of 80-100 oo of the first electrostatic precipitator 18 and is therefore pre-cooled to this temperature. . In Table 0, the total amount of waste gas is still 443320 N/h, but its average temperature is lower.

それ故、第１の廃ガス流は冷却することなくその温度を
保持して第１の電気集塵装置に送ることが可能である。
またＳ０２の総量は５０４ｋ９／ｈである。廃ガスの温
度曲線が変化すると、Ｓ０２含有量も変化し、これに対
応して蓮通関係を変えなければならない。本発明の利点
は、鉄鉱石の暁結機から生じる廃ガスの組成、温度及び
量の変動ないし変化が起こる場合にも、廃ガス中に含ま
れる有害な粉塵状、ガス又は蒸気状の物質をできるだけ
経済的にかつまた技術的に簡単な方法で十分に除去する
ことが出釆る点にある。Therefore, the first waste gas stream can be sent to the first electrostatic precipitator without cooling and maintaining its temperature.
Moreover, the total amount of S02 is 504k9/h. When the temperature curve of the waste gas changes, the S02 content also changes, and the lotus relationship must be changed accordingly. The advantage of the present invention is that it eliminates harmful dust-like, gaseous or vapor-like substances contained in the waste gas, even when fluctuations or changes in the composition, temperature and quantity of the waste gas arising from iron ore smelting machines occur. It is possible to sufficiently remove it using a method that is as economical and technically simple as possible.

表 ｌ 表 ｎTable l Table n

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

図面は本発明の実施例を示すものであって、第１図は一
方の側に風箱と２つのガス補集管とを具備した暁結機の
概略図、及び暁結機の上側連行路の長さ方向における廃
ガスのＳ０２含有量、温度及び星を夫々表わす曲線図、
第２図は焼結機の両側にそれぞれ２つのガス補集管を具
備する場合の概略部分平面図、第３図は一方の側にっの
ガス補集管を具備する暁結機の変形例の概略図である。 なお図面に用いられている符号において、１〜１５は風
箱、１６は第１のガス補集管、１７は第２のガス補集管
、１８は第１の電気集塵装置、２２は第２の電気集塵装
置、２４はスクラッバである。ＦＩｇ．２ Ｆｉ９．１ Ｆｉｇ．３The drawings show an embodiment of the invention, and FIG. 1 is a schematic diagram of a dawning machine equipped with a wind box and two gas collection pipes on one side, and an upper coupling path of the dawning machine. A curve diagram representing the S02 content, temperature and stars of the waste gas in the longitudinal direction, respectively;
Figure 2 is a schematic partial plan view of a sintering machine with two gas collection pipes on each side, and Figure 3 is a modification of the sintering machine with two gas collection pipes on one side. FIG. In addition, in the symbols used in the drawings, 1 to 15 are wind boxes, 16 is a first gas collection pipe, 17 is a second gas collection pipe, 18 is a first electrostatic precipitator, and 22 is a first gas collection pipe. 2 is an electrostatic precipitator, and 24 is a scrubber. FIG. 2 Fi9.1 Fig. 3

Claims (1)

【特許請求の範囲】 １ 鉄鉱石の焼結装置の廃ガス中に含まれる有害物質を
除去するに際し、前記焼結装置の前方領域中間領域及び
後方領域の夫々の下方に設けらた風箱からの前記廃ガス
の部分流を連通管を介してガス捕集管内に捕集し、これ
らの廃ガスの部分流から粉塵状の前記有害物質を粉塵捕
集装置内で除去すると共に、前記焼結装置の中間領域か
らの前記廃ガス部分流からガス状又は蒸気状の前記有害
物質をスクラツバによつて除去するようにした焼結装置
の廃ガスから有害物質を除去する方法において、（ａ）
前記ガス状又は蒸気状の有害物質の含有量が低い第１
の部分流を、前記焼結装置の前方領域及び後方領域の下
方に夫々設けられた前記風箱から連通管を介して第１の
ガス捕集管内に捕集し、第１の電気集塵装置内で約８０
〜１００℃のガス温度でこの第１の廃ガス部分流から大
部分の前記粉塵状の有害物質を除去し、次いでこの第１
の廃ガス部分流を煙突に導くこと、（ｂ） 前記ガス状
又は蒸気状の有害物質の含有量が比較的高い第２の廃ガ
ス部分流を、少なくとも前記焼結装置の中間領域の下方
に設けられた風箱から連通管を介して第２のガス捕集管
内に捕集し、第２の電気集塵装置内で約１９０〜２５０
℃のガス温度でこの第２の廃ガス部分流から大部分の前
記粉塵状の有害物質を除去し、次いでスクラツバ内で大
部分の前記ガス状又は蒸気状の有害物質を除去してから
、この第２の廃ガス部分流を煙突に導くこと、（ｃ）
前記第１の廃ガス部分流が前記第１の電気集塵装置にお
ける集塵に好適な温度及び量になると共に、前記第２の
廃ガス部分流が前記ガス状及び蒸気状の有害物質の大部
分を含有しかつ前記第２の電気集塵装置における集塵に
好適な温度及び量になるように前記各風箱を前記第１又
は第２のガス捕集管に各々連通させること、を特徴とす
る方法。 ２ 前記第１の廃ガス部分流を予め冷却してから前記第
１の電気集塵装置に導入することを特徴とする、特許請
求の範囲第１項に記載の方法。 ３ 前記第２の廃ガス部分流を予め冷却してから前記第
２の電気集塵装置に導入することを特徴とする、特許請
求の範囲第１項又は第２項に記載の方法。 ４ 鉄鉱石の焼結装置の廃ガス中に含まれる有害物質を
除去するに際し、前記焼結装置の前方領域、中間領域及
び後方領域の夫々の下方に設けられた風箱からの前記廃
ガスの部分流を連通管を介してガス捕集管内に捕集し、
これらの廃ガスの部分流から粉塵状の前記有害物質を粉
塵捕集装置内で除去すると共に、前記焼結装置の中間領
域からの前記廃ガス部分流からガス状又は蒸気状の前記
有害物質をスクラツバによつて除去するようにした焼結
装置の廃ガスから有害物質を除去する装置において、（
ａ） 前記焼結装置の前方領域及び後方領域の夫々の下
方に設けられた前記風箱と連通管で連通すると共に、第
１の電気集塵装置及びこの電気集塵装置を介して煙突に
夫々連通する第１のガス捕集管からなる、前記ガス状又
は蒸気状の有害物質の含有量が低い第１の廃ガス部分流
のための第１の流路と、（ｂ） 少なくとも前記焼結装
置の中間領域の下方に設けられた前記風箱と連通管で連
通すると共に、第２の電気集塵装置、スクラツバ及びこ
れらを介して煙突に夫々連通する第２のガス捕集管から
なる、前記ガス状又は蒸気状の有害物質の含有量が比較
的高い第２の廃ガス部分流のための第２の流路と、（ｃ
） 前記焼結装置の前方領域の後方部分の下方に設けら
れた前記風箱と前記焼結装置の後方領域の下方に設けら
れた前記風箱と前記第１及び第２のガス捕集管に連通す
る前記連通管の連通状態を変更させるための手段と、（
ｄ） 前記焼結装置の前方領域の後方部分の下方に設け
られた前記風箱と前記焼結装置の後方領域の下方に設け
られた前記風箱とを前記第１及び第２のガス捕集管に連
通する前記連通管に設けられ、前記（ｃ）の手段と協働
する遮断手段と、を夫々具備することを特徴とする装置
。 ５ 前記連通管によつて前記第１及び第２のガス捕集管
に通じる風箱が他の風箱と比較して前記焼結装置の運行
方向において短く構成されていることを特徴とする特許
請求の範囲の第４項に記載の装置。[Scope of Claims] 1. When removing harmful substances contained in the waste gas of an iron ore sintering device, from a wind box provided below each of the front region, middle region, and rear region of the sintering device. A partial flow of the waste gas is collected in a gas collection pipe through a communication pipe, and the harmful substances in the form of dust are removed from the partial flow of waste gas in a dust collection device, and the sintering A method for removing harmful substances from the waste gas of a sintering apparatus, characterized in that said harmful substances in gaseous or vapor form are removed by a scrubber from said waste gas partial stream from an intermediate region of the apparatus, comprising: (a)
The first material has a low content of gaseous or vaporous harmful substances.
A partial flow of is collected from the wind box provided below the front region and the rear region of the sintering device into a first gas collection pipe via a communication pipe, and a first electrostatic precipitator. Approximately 80 within
removing most of the dust-like hazardous substances from this first waste gas partial stream at a gas temperature of ~100°C;
(b) directing a second waste gas partial stream having a relatively high content of gaseous or vaporous harmful substances at least below an intermediate region of the sintering device; The gas is collected from the provided wind box into the second gas collection pipe through the communication pipe, and is collected in the second electrostatic precipitator.
After removing most of the dust-like harmful substances from this second waste gas partial stream at a gas temperature of 0.degree. (c) directing the second waste gas partial stream into the chimney;
The first waste gas partial stream has a temperature and quantity suitable for dust collection in the first electrostatic precipitator, and the second waste gas partial stream has a large amount of the gaseous and vaporous harmful substances. Each of the air boxes is connected to the first or second gas collection pipe so that the temperature and amount are suitable for collecting dust in the second electrostatic precipitator. How to do it. 2. Method according to claim 1, characterized in that the first waste gas partial stream is precooled before being introduced into the first electrostatic precipitator. 3. Method according to claim 1 or 2, characterized in that the second waste gas partial stream is previously cooled before being introduced into the second electrostatic precipitator. 4. When removing harmful substances contained in waste gas from an iron ore sintering device, the waste gas is removed from wind boxes provided below each of the front region, intermediate region, and rear region of the sintering device. Collecting the partial flow in a gas collection pipe through a communication pipe,
The harmful substances in dust form are removed from these waste gas partial streams in a dust collector, and the harmful substances in gaseous or vapor form are removed from the waste gas partial stream from the intermediate region of the sintering device. In a device for removing harmful substances from the waste gas of a sintering device, which is removed by a scrubber, (
a) It communicates with the wind box provided below each of the front region and the rear region of the sintering device through a communication pipe, and connects to the chimney through the first electrostatic precipitator and this electrostatic precipitator, respectively. (b) a first flow path for a first waste gas partial stream having a low content of said gaseous or vaporous harmful substances, consisting of a first gas collection tube in communication with said sintering tube; It communicates with the wind box provided below the intermediate area of the device through a communication pipe, and also includes a second electrostatic precipitator, a scrubber, and a second gas collection pipe that communicates with the chimney through these, respectively. a second flow path for a second waste gas partial stream with a relatively high content of gaseous or vaporous harmful substances;
) The wind box provided below the rear part of the front region of the sintering device, the wind box provided below the rear region of the sintering device, and the first and second gas collection pipes. means for changing the communication state of the communicating pipe;
d) The wind box provided below the rear portion of the front region of the sintering device and the wind box provided below the rear region of the sintering device are used to collect the first and second gases. A device characterized in that each device comprises a blocking means provided in the communicating pipe communicating with the pipe and cooperating with the means of (c). 5. A patent characterized in that the wind box that communicates with the first and second gas collection pipes through the communication pipe is configured to be shorter in the traveling direction of the sintering apparatus than other wind boxes. Apparatus according to claim 4.
JP51049751A 1975-05-10 1976-04-30 Method and device for removing harmful substances from waste gas from sintering equipment Expired JPS6039416B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2520957.8 1975-05-10
DE2520957A DE2520957C3 (en) 1975-05-10 1975-05-10 Process for removing dusty and gaseous pollutants from starter exhaust gas

Publications (2)

Publication Number Publication Date
JPS5235164A JPS5235164A (en) 1977-03-17
JPS6039416B2 true JPS6039416B2 (en) 1985-09-05

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JP51049751A Expired JPS6039416B2 (en) 1975-05-10 1976-04-30 Method and device for removing harmful substances from waste gas from sintering equipment

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JP (1) JPS6039416B2 (en)
AT (1) AT363915B (en)
BE (1) BE840129A (en)
BR (1) BR7602601A (en)
DE (1) DE2520957C3 (en)
ES (1) ES447728A1 (en)
FR (1) FR2310794A1 (en)
GB (1) GB1485259A (en)
IT (1) IT1061034B (en)
LU (1) LU74904A1 (en)
MX (1) MX3461E (en)
ZA (1) ZA761130B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4256468A (en) * 1977-12-28 1981-03-17 Bethlehem Steel Corporation Method for cleaning sinter plant gas emissions
DE3221283A1 (en) * 1982-06-05 1984-03-15 Klöckner-Humboldt-Deutz AG, 5000 Köln METHOD FOR SEPARATING NON-FERROUS METALS FROM IRON-CONTAINING SECONDARY SUBSTANCES
DE3811758A1 (en) * 1988-04-08 1989-10-19 Sueddeutsche Kuehler Behr Device for separating off pollutants from the exhaust air of carpet production plants
JPH0756377B2 (en) * 1989-08-09 1995-06-14 中部電力株式会社 Method and apparatus for treating boiler exhaust gas
DE59710812D1 (en) * 1997-07-24 2003-11-06 Siemens Ag sinter plant
US7459009B2 (en) 2005-04-15 2008-12-02 Eisenmann Corporation Method and apparatus for flue gas desulphurization
CN112337241A (en) * 2020-10-19 2021-02-09 胡小丽 Dust removal mechanism for spinning

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Publication number Priority date Publication date Assignee Title
FR1151329A (en) * 1955-06-10 1958-01-29 Metallgesellschaft Ag Method and device for dedusting residual gases from concretion
AU470166B2 (en) * 1971-08-25 1976-03-04 Mcdowell-Wellman Engineering Company Process for conditioning sinter draft for electrostatic precipitation of particulate material therefrom
NL7312433A (en) * 1972-10-25 1974-04-29

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AU1208576A (en) 1977-09-22
FR2310794B1 (en) 1982-10-22
ZA761130B (en) 1977-02-23
GB1485259A (en) 1977-09-08
LU74904A1 (en) 1977-01-14
IT1061034B (en) 1982-10-20
BR7602601A (en) 1976-11-16
JPS5235164A (en) 1977-03-17
ES447728A1 (en) 1977-06-01
DE2520957B2 (en) 1977-12-29
MX3461E (en) 1980-12-09
AT363915B (en) 1981-09-10
FR2310794A1 (en) 1976-12-10
DE2520957A1 (en) 1976-11-18
ATA54376A (en) 1981-02-15
DE2520957C3 (en) 1978-08-31
BE840129A (en) 1976-09-27

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