JPH05184855A - Device for treating exhaust gas and method therefor - Google Patents
Device for treating exhaust gas and method thereforInfo
- Publication number
- JPH05184855A JPH05184855A JP4024727A JP2472792A JPH05184855A JP H05184855 A JPH05184855 A JP H05184855A JP 4024727 A JP4024727 A JP 4024727A JP 2472792 A JP2472792 A JP 2472792A JP H05184855 A JPH05184855 A JP H05184855A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- bag filter
- filter
- cylindrical
- cloth
- 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
Links
- 238000000034 method Methods 0.000 title claims description 16
- 239000000428 dust Substances 0.000 claims abstract description 27
- 239000002250 absorbent Substances 0.000 claims abstract description 26
- 230000002745 absorbent Effects 0.000 claims abstract description 24
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 11
- 239000007789 gas Substances 0.000 claims description 135
- 239000004744 fabric Substances 0.000 claims description 45
- 239000012752 auxiliary agent Substances 0.000 claims description 22
- 238000011001 backwashing Methods 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 17
- 239000002245 particle Substances 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims 1
- 229910052717 sulfur Inorganic materials 0.000 claims 1
- 239000011593 sulfur Substances 0.000 claims 1
- 230000002378 acidificating effect Effects 0.000 abstract description 2
- 239000000779 smoke Substances 0.000 abstract description 2
- 229910052815 sulfur oxide Inorganic materials 0.000 description 13
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 10
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 10
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 10
- 238000001914 filtration Methods 0.000 description 9
- 150000002013 dioxins Chemical class 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 6
- 238000007664 blowing Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000002956 ash Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000012717 electrostatic precipitator Substances 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910001562 pearlite Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は都市ごみ焼却炉や各種の
燃焼装置の排ガス処理に使用するものであり、排ガス内
の媒塵・酸性ガス・硫黄酸化物・重金属・ダイオキシン
等をバグフィルタ装置で同時に除去できるようにした排
ガス処理装置の改良に関するものである。BACKGROUND OF THE INVENTION The present invention is used for treating exhaust gas from municipal waste incinerators and various combustion equipment, and is a bag filter device for removing dust particles, acid gases, sulfur oxides, heavy metals, dioxins, etc. in the exhaust gas. The present invention relates to an improvement of an exhaust gas treatment device that can be simultaneously removed by.
【０００２】[0002]
【従来の技術】都市ごみ焼却炉や産業廃棄物焼却炉から
排出される排ガス内には媒塵や塩化水素や弗化水素等の
酸性ガス、硫黄酸化物、窒素酸化物、重金属類及びダイ
オキシン等の多種類の有害物質が含まれている。初期段
階の排ガス処理では、電気集塵機により媒塵等を除去す
ると共に、湿式洗煙方式により塩化水素・弗化水素等の
酸性ガスや硫黄酸化物を除去していた。その後、排水処
理の関係から、乾式処理方式が多用されるようになり、
電気集塵機の入り口側ダクト内へ消生灰Ｃａ（ＯＨ）2
等を吹き込むことにより塩化水素（ＨＣ１）や硫黄酸化
物（ＳＯｘ）を吸着・中和し、媒塵と共に電気集塵機で
補集する方式が広まってきた。2. Description of the Related Art Exhaust gas discharged from an incinerator for municipal waste and an industrial waste incinerator contains dust particles, acid gases such as hydrogen chloride and hydrogen fluoride, sulfur oxides, nitrogen oxides, heavy metals and dioxins. Contains many kinds of harmful substances. In the exhaust gas treatment in the initial stage, an electric dust collector was used to remove dust and the like, and a wet smoke washing method was used to remove acidic gases such as hydrogen chloride and hydrogen fluoride and sulfur oxides. After that, due to the wastewater treatment, the dry treatment method has been widely used,
Burned ash Ca (OH) 2 into the entrance side duct of the electric dust collector
A method in which hydrogen chloride (HC1) and sulfur oxides (SOx) are adsorbed and neutralized by blowing air etc., and is collected by an electrostatic precipitator together with dust particles has become widespread.
【０００３】ところが、近年、電気集塵機の内部で、
通過する排ガス温度や滞留時間が原因となって有害なダ
イオキシンが発生すること、バグフィルタ装置の入口
側ダクト内へ消生灰等の吸収剤を吹き込み、フィルタの
外表面に吸収剤層（石灰層）を形成することにより塩化
水素や硫黄酸化物等が高効率で除去できること、前記
吸収剤層によりダイオキシンや鉛、カドニウム等の重金
属も除去できること等が判明した。その結果、従前の電
気集塵機を主体とする排ガス処理方式に代え、前記バグ
フィルタ装置を用いた有害物質の合併処理方式が普及し
始めてきた。However, in recent years, inside the electrostatic precipitator,
Hazardous dioxins are generated due to passing exhaust gas temperature and residence time, absorbent such as soft ash is blown into the inlet duct of the bag filter device, and the absorbent layer (lime layer) is formed on the outer surface of the filter. It was found that hydrogen chloride, sulfur oxides, etc. can be removed with high efficiency by forming), and that heavy metals such as dioxins, lead, and cadmium can also be removed by the absorbent layer. As a result, instead of the conventional exhaust gas treatment method mainly using an electrostatic precipitator, a harmful substance merger treatment method using the bag filter device has begun to spread.
【０００４】図１２は前記バグフィルタ装置を用いた排
ガス処理装置の一例を示すものであり、図に於いて２４
は装置本体、２５はバグフィルタ、２６は媒塵ホッパ、
２７は入口ダクト、２８は出口ダクトである。排ガスＧ
は入口ダクト２７を通して供給され、その途中に於い
て、先ず排ガスＧ内へパーライト等の助剤２９が吹き込
まれる。即ち、当該助剤２９の吹き込みにより、バグフ
ィルタ装置の濾布の外表面に助剤層が形成され、これに
よって濾布の表面が保護されると共に、逆洗時に媒塵等
が簡単に剥離・脱落することになる。また、前記助剤２
９の吹込みに続いて入口ダクト２７の適宜箇所から排ガ
スＧ内へ消生灰等の吸収剤３０が吹き込まれる。この吸
収剤３０の吹込みにより、前記濾布外表面に積層した助
剤層の上に吸収剤層（石灰層）が形成され、これによっ
て排ガスＧ内の媒塵やＨＣ１、ＨＦ、ＳＯｘ、ダイオキ
シン、重金属等が高効率で除去される。尚、前記助剤層
及び吸収剤層は、濾布の内側よりパルスエアー等を供給
してこれを振動させることにより、定期的に剥離・除去
される。FIG. 12 shows an example of an exhaust gas treatment device using the bag filter device.
Is a device body, 25 is a bag filter, 26 is a dust hopper,
27 is an inlet duct and 28 is an outlet duct. Exhaust gas G
Is supplied through the inlet duct 27, and an auxiliary agent 29 such as pearlite is first blown into the exhaust gas G on the way. That is, by blowing the auxiliary agent 29, an auxiliary agent layer is formed on the outer surface of the filter cloth of the bag filter device, which protects the surface of the filter cloth and easily removes dust and the like during backwashing. Will be dropped. In addition, the auxiliary agent 2
Following the blowing of 9, the absorbent 30 such as the ashes of ash is blown into the exhaust gas G from an appropriate portion of the inlet duct 27. By the blowing of the absorbent 30, an absorbent layer (lime layer) is formed on the auxiliary layer laminated on the outer surface of the filter cloth, whereby the dust in the exhaust gas G, HC1, HF, SOx, and dioxins are formed. , Heavy metals are removed with high efficiency. The auxiliary agent layer and the absorbent layer are regularly peeled and removed by supplying pulsed air or the like from the inside of the filter cloth and vibrating it.
【０００５】[0005]
【発明が解決しようとする課題】前記バグフィルタ装置
を用いた排ガス処理装置は排水処理装置を必要とせず、
優れた実用的効用を有するものである。しかし乍ら、当
該バグフィルタ装置にも解決すべき多くの課題が残され
ており、その中でも、バグフィルタ装置の一層の小形化
が最重要課題となっている。即ち、バグフィルタ装置の
設計に際しては、濾布面に於ける中和反応の効率を高め
ると共に排ガスの通過抵抗を低減するため、濾布を通過
するガス流速を極めて低い値に設定する必要がある。そ
の結果、必然的に濾布面積が大きくなると共に、バグフ
ィルタの相対間隔も相応の寸法距離を必要とするので、
バグフィルタ装置の容積が大きくなって製造コストが上
昇したり、排ガス処理装置の収容建物が大形化すること
になる。本願発明は、従前のバグフィルタ装置に於ける
上述の如き問題の解決を課題とするものであり、バグフ
ィルタの濾布面積と装置容積の比率を改善し、従来より
も小さい空間容積でもって所要の濾布面積を確保するこ
とにより、装置の大幅な小形化を可能としたバグフィル
タ装置を提供するものである。The exhaust gas treatment device using the bag filter device does not require a waste water treatment device,
It has excellent practical utility. However, many problems still remain to be solved in the bag filter device, and further downsizing of the bag filter device is the most important problem among them. That is, when designing the bag filter device, it is necessary to set the gas flow velocity through the filter cloth to an extremely low value in order to increase the efficiency of the neutralization reaction on the filter cloth surface and reduce the passage resistance of the exhaust gas. .. As a result, the filter cloth area inevitably increases, and the relative distance between the bag filters also requires a corresponding dimensional distance.
The volume of the bag filter device becomes large, the manufacturing cost rises, and the building for housing the exhaust gas treatment device becomes large. The present invention is intended to solve the above-mentioned problems in a conventional bag filter device, and improves the ratio of the filter cloth area of the bag filter to the device volume, which is required with a space volume smaller than the conventional one. By providing a filter cloth area, the bag filter device can be downsized significantly.
【０００６】[0006]
【課題を解決するための手段】従来のバグフィルタ装置
には、濾布に対する排ガスの流れが、筒状バグフィルタ
の外側から内側へ向かう方式のものと、筒状バグフィル
タの内側から外側へ向かう方式のもとが存在するが、何
れの方式にあっても、濾布を通過するガス流速は、概ね
０.５〜１.０ｍ／ｍｉｎ程度に抑えられている。尚、前
記ガス流速の設定は、濾布表面に形成された助剤層、吸
収剤層、ばいじん層内を排ガスが通過する間に、排ガス
中の有害物質を有効に除去できると共に、濾布の通過抵
抗が過大とならないよう選定されたものであり、バグフ
ィルタ装置の容積が大きくなるのは、主としてこの濾過
速度の制約によるものである。In a conventional bag filter device, the flow of exhaust gas to a filter cloth goes from the outside of the tubular bag filter to the inside, and from the inside of the tubular bag filter to the outside. Although there is a method, the gas flow rate through the filter cloth is suppressed to about 0.5 to 1.0 m / min in any method. The gas flow rate is set such that harmful substances in the exhaust gas can be effectively removed while the exhaust gas passes through the auxiliary agent layer, the absorbent layer and the dust layer formed on the surface of the filter cloth. It is selected so that the passage resistance does not become excessive, and the volume of the bag filter device becomes large mainly because of the restriction of the filtration speed.
【０００７】一方、筒状のバグフィルタに於いては、排
ガスは一方向に流れ、筒状バグフィルタの外側から排ガ
スが流入する形式では筒内部の終端出口側で、また、筒
状バグフィルタの内側から排ガスが流入する形式では筒
内部の始端入口側で最大ガス流速となるが、その値は概
ね１〜１.５ｍ／ｓであり、バグフィルタの全長を通し
た平均値は０.５〜０.８ｍ／ｓ程度の比較的低速度とな
っている。即ち、筒状バグフィルタの内部のガス流速に
は余裕があり、これを数倍に上昇させても通風損失に大
きな影響を与えることはなくバグフィルタ装置の容積を
低減させるための余地を内存していると言える。本発明
は前記の点に着目して創作されたものであり、筒状のバ
グフィルタを二重構造とし、外部の筒状バグフィルタに
於いては外側から二重筒の間隙部へ排ガスを導き、ま
た、内部の筒状バグフィルタに於いては、下部からバグ
フィルタの内側を通して二重筒の間隙部へ排ガスを導く
構造とすることにより、濾過面積の増大を図ると共に、
濾過後のガス流速を適当な値にまで高めて空間の無駄を
無くし、バグフィルタ装置の容積効率を高めるようにし
たものである。On the other hand, in the tubular bag filter, the exhaust gas flows in one direction, and in the type in which the exhaust gas flows from the outside of the tubular bag filter, it is at the end outlet side inside the cylinder and also in the tubular bag filter. In the type in which exhaust gas flows from the inside, the maximum gas flow velocity is at the inlet side of the inside of the cylinder, but its value is generally 1 to 1.5 m / s, and the average value through the entire length of the bag filter is 0.5 to 0.5 m / s. It has a relatively low speed of about 0.8 m / s. That is, there is a margin in the gas flow velocity inside the tubular bag filter, and even if it is increased several times, it does not significantly affect the ventilation loss, and there is room for reducing the volume of the bag filter device. Can be said. The present invention was created in view of the above points, the tubular bag filter has a double structure, and in the external tubular bag filter, the exhaust gas is guided from the outside to the gap of the double tube. In addition, in the internal tubular bag filter, by adopting a structure that guides the exhaust gas from the lower portion through the inside of the bag filter to the gap portion of the double tube, the filtration area is increased and
The gas flow rate after filtration is increased to an appropriate value to eliminate the waste of space and enhance the volumetric efficiency of the bag filter device.
【０００８】即ち、本件の排ガス処理装置に係る発明
は、ガス入口側に於いて排ガスＧ内へ助剤６ａと吸収剤
７ａを吹き込むと共に当該排ガスＧを装置本体内へ導入
し、バグフィルタにより排ガスＧ内の媒塵、重金属、酸
性ガス等を同時に除去するようにした排ガス処理装置に
於いて、前記バグフィルタを、筒状の外側バグフィルタ
１１と筒状の内側バグフィルタ１２とを同芯状に組み合
せ、両者の間隙を清浄排ガスＧ０の排ガス通路Ｓとした
二重筒形のバグフィルタ２とすると共に、前記外側バグ
フィルタ１１の外方及び内側バグフィルタ１２の内方か
ら、各濾材１３，１７を通して排ガス通路Ｓ内へ排ガス
Ｇを導出することを発明の基本構成とするものである。That is, the invention relating to the exhaust gas treating apparatus of the present invention is such that the auxiliary agent 6a and the absorbent 7a are blown into the exhaust gas G at the gas inlet side and the exhaust gas G is introduced into the apparatus main body, and the exhaust gas is exhausted by the bag filter. In an exhaust gas treatment device configured to simultaneously remove dust particles, heavy metals, acid gases, etc. in G, the bag filter is formed by concentrating a cylindrical outer bag filter 11 and a cylindrical inner bag filter 12. To form a double-cylinder bag filter 2 in which the gap between the two is used as the exhaust gas passage S of the clean exhaust gas G0, and from the outside of the outer bag filter 11 and the inside of the inner bag filter 12, the filter media 13, Derivation of the exhaust gas G into the exhaust gas passage S through 17 is the basic configuration of the invention.
【０００９】また、本件排ガス処理方法に係る発明は、
ガス入口側に於いて排ガスＧ内へ助剤６ａと吸収剤７ａ
を吹き込むと共に、当該排ガスＧを、内側バグフィルタ
１１と外側バグフィルタ１２との組み合わせから成る二
重筒形バグフィルタ２を備えた装置本体１内へ導入し、
前記外側フィルタ１１の外方及び内側バグフィルタ１２
の内方から、各濾材１３，１７を通して排ガス通路Ｓ内
へ清浄排ガスＧ０を導出することにより、排ガスＧ内の
媒塵、重金属、酸性ガス及び硫黄酸化物等を除去すると
共に、逆洗時には、二重筒形バグフィルタ２の前記排ガ
ス通路Ｓ内へ逆洗用ガスＭを圧送し、外側バグフィルタ
１１及び内側バグフィルタ１２を同時に洗浄することを
発明の基本構成とするものである。The invention relating to the exhaust gas treatment method of the present invention is
Auxiliary agent 6a and absorbent agent 7a into the exhaust gas G at the gas inlet side
And the exhaust gas G is introduced into the apparatus main body 1 including the double-cylinder bag filter 2 formed by the combination of the inner bag filter 11 and the outer bag filter 12,
Outer and inner bag filters 12 of the outer filter 11
By introducing the clean exhaust gas G0 from the inside of the exhaust gas through the respective filter media 13 and 17 into the exhaust gas passage S, dust particles, heavy metals, acid gases, sulfur oxides and the like in the exhaust gas G are removed, and at the time of backwashing, The basic configuration of the invention is to pump the backwashing gas M into the exhaust gas passage S of the double cylindrical bag filter 2 to wash the outer bag filter 11 and the inner bag filter 12 at the same time.
【００１０】[0010]
【作用】排ガス内へ助剤及び吸収剤を吹き込むことによ
り、二重筒形のバグフィルタを形成する外側の布製濾材
の外表面及び内側の布製濾材の内表面に、夫々所定の厚
さの助剤層と吸収剤層が形成される。排ガス内の媒塵や
重金属、ＨＣ１、ＨＦ、ＳＯｘ等は、排ガスが前記助剤
層及び吸収剤層を通過して内・外両布製濾材の間隙内へ
流通する間に除去される。また、前記内・外両布製濾材
を通過した排ガスは、両者の間隙空間を上昇し、出口ダ
クトへ排出される。前記二重筒状バグフィルタの排ガス
通路断面積を、従来の単筒状バグフィルタの排ガス通路
断面積の１／２に設定した場合には、外側の筒状バグフ
ィルタと内側の筒状バグフィルタとの直径比は約１：
０.７となり、また、前者の単位長さ当たりの濾過面積
は後者の約１.７倍となる。その結果、本発明のバグフ
ィルタに於いては、両筒状バグフィルタ間隙を流通する
排ガスの流量及び流速は、単筒状バグフィルタに比して
夫々１.７倍及び３.４倍となるが、この程度の流速の増
加による抵抗損失の増加は濾布の通過抵抗に比して僅少
であり、バグフィルタ装置は全体として無理なく構成す
ることができる。前記二重筒状バグフィルタが目詰まり
を起こした場合には、バグフィルタの上部から内・外両
バグフィルタの間隙部へ逆洗用ガスを圧送し、ダストの
払い落としを行う。この時、逆洗用ガスにはパルス状の
変動を与え、逆洗用ガスの流れを衝撃的に変化させるの
が望ましい。また、逆洗ガス流量は、濾過面積の増加に
見合った充分な量のガスが供給され、これにより、従来
の単筒形バグフィルタの場合と同様の逆洗効果を得るこ
とができる。By blowing an auxiliary agent and an absorbent agent into the exhaust gas, the auxiliary material having a predetermined thickness is formed on the outer surface of the outer cloth filter material and the inner surface of the inner cloth filter material forming the double-cylinder bag filter. An agent layer and an absorbent layer are formed. Dust and heavy metals, HC1, HF, SOx, etc. in the exhaust gas are removed while the exhaust gas passes through the auxiliary agent layer and the absorbent layer and flows into the gap between the inner and outer cloth filter media. Further, the exhaust gas that has passed through both the inner and outer cloth filter media rises in the space between them and is discharged to the outlet duct. When the exhaust gas passage sectional area of the double tubular bag filter is set to 1/2 of the exhaust gas passage sectional area of the conventional single tubular bag filter, the outer tubular bag filter and the inner tubular bag filter are arranged. The diameter ratio with is about 1:
The filtration area per unit length of the former is 0.7 times that of the latter. As a result, in the bag filter of the present invention, the flow rate and flow velocity of the exhaust gas flowing through the gaps between the two tubular bag filters are 1.7 times and 3.4 times that of the single tubular bag filter, respectively. However, the increase of the resistance loss due to the increase of the flow velocity to this extent is slight as compared with the passage resistance of the filter cloth, and the bag filter device as a whole can be configured reasonably. When the double cylindrical bag filter is clogged, the backwashing gas is pressure-fed from the upper part of the bag filter to the gap between the inner and outer bag filters to remove the dust. At this time, it is desirable to give a pulse-like fluctuation to the backwashing gas to shockfully change the flow of the backwashing gas. Further, the backwash gas flow rate is such that a sufficient amount of gas is supplied in proportion to the increase in the filtration area, whereby the same backwash effect as in the case of the conventional single-cylinder bag filter can be obtained.
【００１１】[0011]
【実施例】以下、図面に基づいて本発明の実施例を説明
する。図１は本発明に係る排ガス処理装置の縦断面概要
図であり、図に於いて１は装置本体、１ａは媒塵ホッ
パ、２はバグフィルタ、３はダスト排出口、４は入口ダ
クト、５は出口ダクト、６は助剤供給口、６ａは助剤、
７は吸収剤供給口、７ａは吸収剤、８は誘引通風機、９
ａ，９ｂ，９ｃは切替ダンパ、１０は押込送風機、Ｇは
排ガスである。また、図２は本発明の要部を構成するバ
グフィルタ２の縦断面図であり、更に、図３は図２のＡ
−Ａ視断面図、図４は図２のＢ−Ｂ視断面図、図５は図
２のＣ−Ｃ視断面図、図６は図２のＤ−Ｄ視断面図であ
る。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic vertical sectional view of an exhaust gas treating apparatus according to the present invention. In the figure, 1 is a device body, 1a is a dust hopper, 2 is a bag filter, 3 is a dust discharge port, 4 is an inlet duct, 5 Is an outlet duct, 6 is an auxiliary agent supply port, 6a is an auxiliary agent,
7 is an absorbent supply port, 7a is an absorbent, 8 is an induced draft fan, 9
a, 9b and 9c are switching dampers, 10 is a forced air blower, and G is exhaust gas. 2 is a vertical cross-sectional view of the bag filter 2 which constitutes the essential part of the present invention, and FIG.
-A sectional view, FIG. 4 is a BB sectional view of FIG. 2, FIG. 5 is a CC sectional view of FIG. 2, and FIG. 6 is a DD sectional view of FIG.
【００１２】前記バグフィルタ２は図２に示す如く、円
筒状の外側バグフィルタ１１と、これと同芯状に配設し
た円筒状の内側バグフィルタ１２とから、二重筒状に形
成されており、外側バグフィルタ１１と内側バグフィル
タ１２との間隙部が、処理済排ガスＧ０の通路Ｓとな
る。即ち、前記外側バグフィルタ１１は、円筒状の布製
濾材１３と、濾材１３の内方へ挿入され、これを円筒状
の形態に保持する支持かご１４と、支持かご１４の上端
へ取付けた上部取付金物１５と、支持かご１４の下端へ
取付けた下部取付金物１６等から形成されており、上部
取付金物１５を介して装置本体１の隔壁板１ｂへ取替自
在に吊下げ支持されている。また、前記内側バグフィル
タ１２は、円筒状の布製濾材１７と、濾材１７の内方へ
挿入されてこれを円筒状の形態に保持する支持かご１８
と、支持かご１８の上端へ取付けた上部蓋板１９と、支
持かご１８の下端へ取付けた下部リング金物２０等から
形成されており、上方部の上部蓋板１９が外側バグフィ
ルタ１１の上部取付金具１５へ、また下端部の下部リン
グ金物２０が外側バグフィルタ１１の下部取付金物１６
へ夫々固着されている。As shown in FIG. 2, the bag filter 2 is formed in a double cylindrical shape from a cylindrical outer bag filter 11 and a cylindrical inner bag filter 12 arranged concentrically therewith. The gap between the outer bag filter 11 and the inner bag filter 12 becomes the passage S of the treated exhaust gas G0. That is, the outer bag filter 11 has a cylindrical filter material 13 made of cloth, a support basket 14 inserted into the filter media 13 and holding the filter media 13 in a cylindrical shape, and an upper mount attached to the upper end of the support basket 14. It is formed from a metal fitting 15 and a lower mounting hardware 16 attached to the lower end of the support basket 14, and is hung and supported by the partition plate 1b of the apparatus body 1 via the upper mounting hardware 15 in a freely replaceable manner. The inner bag filter 12 has a cylindrical filter material 17 made of cloth, and a support basket 18 inserted into the filter material 17 and holding the filter material 17 in a cylindrical shape.
And an upper lid plate 19 attached to the upper end of the support basket 18 and a lower ring hardware 20 attached to the lower end of the support basket 18, and the upper lid plate 19 in the upper portion is attached to the upper part of the outer bag filter 11. To the metal fitting 15, and the lower ring hardware 20 at the lower end is the lower mounting hardware 16 of the outer bag filter 11.
To each one.
【００１３】前記筒状の布製濾材１３及び布製濾材１７
は、通常のバグフィルタ用濾布を縫製加工することによ
り、外径１００〜３００ｍｍφ・長さ３０００〜９００
０ｍｍ程度の筒状の袋体に形成されており、後述する如
く、この布製濾材１３の外表面及び布製濾材１７の内表
面に、排ガス内の媒塵やＨＣ１・ＳＯｘ等を除去する助
剤層及び吸収剤層が形成される。尚、本実施例に於いて
は、外側バグフィルタ１１と内側バグフィルタ１２の直
径比が約１：０.７に設定されており、従前の単筒式の
バグフィルタに比較して単位長さ当たりの濾過面積が約
１.７倍になっている。また、前記支持かご１４，１８
は、布製濾材１３，１７の形態を筒状に保持するための
ものであり、丸棒鋼等によりかご形に形成されており、
この外側に布製濾材１３，１７が挿着されている。The tubular cloth filter material 13 and cloth filter material 17
Is made by sewing a normal bag filter filter cloth to obtain an outer diameter of 100 to 300 mmφ and a length of 3000 to 900.
It is formed in a cylindrical bag of about 0 mm, and as described later, an auxiliary agent layer for removing dust particles, HC1, SOx, etc. in the exhaust gas on the outer surface of the cloth filter material 13 and the inner surface of the cloth filter material 17. And an absorbent layer is formed. In this embodiment, the diameter ratio of the outer bag filter 11 and the inner bag filter 12 is set to about 1: 0.7, which is a unit length as compared with the conventional single-cylinder bag filter. The filtration area per unit is about 1.7 times. In addition, the support baskets 14 and 18
Is for holding the shape of the cloth filter media 13 and 17 in a tubular shape, and is formed in a cage shape from round bar steel or the like.
Cloth filter media 13 and 17 are inserted and attached to the outside.
【００１４】図７は二重筒形バグフィルタ２の上端部の
拡大部分断面図であり、外側バグフィルタ１１と内側バ
グフィルタ１２の組合せ状態を示すものである。前記二
重筒形バグフィルタ２の上部取付金物１５は、鍔部１５
ａと短筒部１５ｂと支持体１５ｃとを備えており、ま
た、支持体１５ｃの中央には支持ボルト挿通孔１５ｄが
穿設されている。当該上部取付金物１５の鍔部１５ａ
は、隔壁板１ｂへボルトナット等により固定されてお
り、またその短筒部１５ｂには支持かご１４が支持固定
されている。尚、１５ｅは布製濾材１３の固定具であ
る。前記内側バグフィルタ１２の上部蓋板１９は逆皿形
に形成されており、その下端縁側には支持かご１８の上
端が支持固定されている。また、上部蓋板１９の中央に
は支持ボルト１９ａが植設されており、当該支持ボルト
１９ａを前記支持体１５ｃへ調整ナット１９ｂを介して
固定することにより、内側バグフィルタ１２が外側バグ
フィルタ１１と同芯状に、吊下げ支持されている。尚、
１９ｃは布製濾材１７の固定具である。FIG. 7 is an enlarged partial cross-sectional view of the upper end portion of the double cylindrical bag filter 2, showing a combined state of the outer bag filter 11 and the inner bag filter 12. The upper mounting hardware 15 of the double cylindrical bag filter 2 has a collar 15
It is provided with a, a short tubular portion 15b and a support 15c, and a support bolt insertion hole 15d is formed in the center of the support 15c. Collar portion 15a of the upper mounting hardware 15
Is fixed to the partition plate 1b with bolts and nuts, and the supporting cage 14 is supported and fixed to the short cylinder portion 15b. Reference numeral 15e is a fixture for the cloth filter medium 13. The upper cover plate 19 of the inner bag filter 12 is formed in an inverted dish shape, and the upper end of the support basket 18 is supported and fixed to the lower end edge side thereof. A support bolt 19a is planted in the center of the upper cover plate 19. By fixing the support bolt 19a to the support member 15c via an adjusting nut 19b, the inner bag filter 12 is moved to the outer bag filter 11. It is suspended and supported concentrically with. still,
Reference numeral 19c is a fixture for the cloth filter material 17.
【００１５】図８はバグフィルタ２の下端部の拡大部分
断面図である。前記内側バグフィルタ１２の下部リング
金物２０は、異径ソケット状に形成されており、その上
端部は支持かご１８の下端へ固定されている。また、当
該下部リング金物２０の下端部には、外側バグフィルタ
１１の下部取付金物１６がボルトナットにより着脱自在
に固定されている。尚、１６ａ，２０ａは布製濾材１
３，１７の固定具である。FIG. 8 is an enlarged partial sectional view of the lower end portion of the bag filter 2. The lower ring metal member 20 of the inner bag filter 12 is formed in a socket shape with a different diameter, and its upper end is fixed to the lower end of the support car 18. Further, a lower mounting metal member 16 of the outer bag filter 11 is detachably fixed to a lower end portion of the lower ring metal member 20 by a bolt nut. In addition, 16a and 20a are cloth filter media 1
3,17 fixtures.
【００１６】尚、本実施例に於いては、二重筒形バグフ
ィルタ２を円筒形に形成しているが、その形状は角筒形
であってもよいことは勿論である。また、本実施例で
は、メンテナンスに際して、二重筒形バグフィルタ２を
一体として装置本体１外へ引出す構成としているが、必
要に応じて内側バグフィルタ１２又は外側バグフィルタ
１１のみを引出し得ることは勿論である。In this embodiment, the double-cylinder bag filter 2 is formed in a cylindrical shape, but it goes without saying that the shape may be a rectangular tube shape. Further, in this embodiment, the double-cylinder bag filter 2 is integrally pulled out to the outside of the apparatus main body 1 at the time of maintenance, but only the inner bag filter 12 or the outer bag filter 11 can be pulled out as necessary. Of course.
【００１７】次に、本発明による排ガスの処理について
説明する。図１を参照して、ごみ焼却炉等からの排ガス
Ｇは、入口ダクト４を通して装置本体１内へ導入され、
その一部は外方より外側バグフィルタ１１の濾材１３を
通して、また残りは内側バグフィルタ１２の内方より濾
材１７を通して、夫々排ガス通路Ｓ内へ夫々流入し、清
浄排ガスＧ０は出口ダクト５から装置本体１の外部へ導
出されて行く。Next, the treatment of exhaust gas according to the present invention will be described. With reference to FIG. 1, exhaust gas G from a refuse incinerator or the like is introduced into the apparatus main body 1 through an inlet duct 4,
Some of them flow into the exhaust gas passage S from the outside through the filter medium 13 of the outer bag filter 11 and the rest through the filter medium 17 from the inside of the inner bag filter 12, respectively, and the clean exhaust gas G0 is discharged from the outlet duct 5 to the device. It is led out of the main body 1.
【００１８】先ず、入口ダクト４の助剤供給口６から、
ゼオライトやパーライト等の粉体から成る助剤６ａを排
ガスＧ内へ供給し、バグフィルタ２を形成する布製濾材
１３の外表面及び布製濾材１７の内表面に適宜の厚さの
助剤層を夫々形成する。尚、この助剤層は布製濾材１
３，１７の表面を保護すると共に、逆洗時に於ける固着
物の剥離を容易にする。また、入口ダクト４の吸収剤供
給口７からＣａ（ＯＨ）2等の粉体から成る吸収剤７ａ
を排ガスＧ内へ供給し、酸性ガスやＳＯｘ、媒塵等を除
去するための適宜の厚さの吸収剤層を濾材表面の前記助
剤層の外側に形成する。その後、入口ダクトから排ガス
Ｇを連続的に供給し、当該排ガスＧの連続処理を行う。
即ち、バグフィルタ装置本体１内へ導入された排ガスＧ
は、布製濾材１３の外表面と布製濾材１７の内表面に積
層された吸収剤層及び助剤層を通過したあと、両濾材１
３，１７の間隙Ｓ内へ流入して上昇し、出口ダクト５内
へ導出されて行く。First, from the auxiliary agent supply port 6 of the inlet duct 4,
An auxiliary agent 6a made of powder such as zeolite or pearlite is supplied into the exhaust gas G to form an auxiliary agent layer having an appropriate thickness on the outer surface of the cloth filter medium 13 and the inner surface of the cloth filter medium 17 which form the bag filter 2, respectively. Form. In addition, this auxiliary agent layer is a cloth filter medium 1
It protects the surfaces of 3, 17 and facilitates the peeling of adhered substances during backwashing. Further, the absorbent 7a made of powder such as Ca (OH) 2 is supplied from the absorbent supply port 7 of the inlet duct 4.
Is supplied into the exhaust gas G, and an absorbent layer having an appropriate thickness for removing acid gas, SOx, dust and the like is formed outside the auxiliary agent layer on the surface of the filter medium. Then, the exhaust gas G is continuously supplied from the inlet duct, and the exhaust gas G is continuously processed.
That is, the exhaust gas G introduced into the bag filter device body 1
After passing through the absorbent layer and the auxiliary layer laminated on the outer surface of the cloth filter medium 13 and the inner surface of the cloth filter medium 17, both filter media 1
It flows into the gap S of 3, 17 and rises, and is led out into the outlet duct 5.
【００１９】排ガスＧ内の媒塵や重金属、ダイオキシ
ン、ＨＣ１、ＳＯｘ等は、前記吸収剤層及び助剤層を通
過する間に除去される。また、出口ダクト５内へ排出さ
れた処理済の排ガスＧ０は、誘引通風機８により、ダン
パ９ａを通して誘引され、煙突（図示省略）から外部へ
放出される。尚、本実施例では、バグフィルタ２の排ガ
ス通路Ｓの上端部に於ける排ガス流速が約３.４〜５.１
ｍ／ｓｅｃ程度に選定されており、従来の単筒式のバグ
フィルタを用いた装置に比較して排ガス流速は約３.４
倍になっている（濾過面積約１.７倍、排ガス流量約１.
７倍）。Dust, heavy metals, dioxins, HC1, SOx, etc. in the exhaust gas G are removed while passing through the absorbent layer and the auxiliary layer. Further, the treated exhaust gas G0 discharged into the outlet duct 5 is attracted through the damper 9a by the attracting fan 8 and discharged from the chimney (not shown) to the outside. In the present embodiment, the exhaust gas flow velocity at the upper end of the exhaust gas passage S of the bag filter 2 is about 3.4 to 5.1.
m / sec is selected, and the exhaust gas flow velocity is about 3.4 compared with the conventional device using a single-cylinder bag filter.
Doubled (filtering area about 1.7 times, exhaust gas flow rate about 1.
7 times).
【００２０】排ガスＧの処理が一定時間継続され、布製
濾材１３，１７への媒塵等の付着量が増大すれば、所謂
バグフィルタ２の逆洗が行われる。即ち、図９に示す如
く、ダンパ９ａを閉、ダンパ９ｂを開、誘引通風機８を
停止し、押込送風機１０から逆洗用ガスＭを出口ダクト
５内へ供給する。またこの時、ダンパ９ｃを所謂緩開急
閉作動させ、これによって出口ダクト５内へ供給する逆
洗用ガスＭの流れにパルス状の変動を与え、その逆洗効
果を高める。出口ダクト５内へ供給された逆洗用ガスＭ
は、布製濾材１３の外側壁面及び布製濾材１７の内側壁
面に固着した粉塵等を除去する。また、当該逆洗用ガス
Ｍは、布製濾材１３及び１７に振動を与え、その表面に
固着した固着物を剥離除去する。布製濾材１３等から剥
離された固着物等はホッパ１ａに集められ、適宜に外部
へ排出されて行く。更に、布製濾材１３，１７の目詰ま
りや汚れが進行すれば、濾材１３，１７を一体的若しく
は単独で取り外し、洗濯等の処理を施したり、或いはそ
の取替を行う。When the treatment of the exhaust gas G is continued for a certain period of time and the amount of the dust particles attached to the cloth filter media 13, 17 increases, the so-called bag filter 2 is backwashed. That is, as shown in FIG. 9, the damper 9a is closed, the damper 9b is opened, the induction fan 8 is stopped, and the backwash gas M is supplied from the forced air blower 10 into the outlet duct 5. Further, at this time, the damper 9c is operated in a so-called gentle open / quick closing manner, thereby giving a pulse-like fluctuation to the flow of the backwashing gas M supplied into the outlet duct 5 to enhance the backwashing effect. Backwashing gas M supplied into the outlet duct 5
Removes dust and the like adhering to the outer wall surface of the cloth filter material 13 and the inner wall surface of the cloth filter material 17. Further, the backwashing gas M vibrates the cloth filter media 13 and 17 to peel off and remove the adhered matter adhered to the surface thereof. The adhered substances and the like separated from the cloth filter material 13 are collected in the hopper 1a and appropriately discharged to the outside. Further, if the cloth filter media 13 and 17 become clogged or soiled, the filter media 13 and 17 are detached integrally or independently, and subjected to washing or the like, or replacement thereof.
【００２１】尚、逆洗方式としては、本実施例の如きパ
ルスエアー方式の他に、圧縮空気逆送式やラムジェット
方式等の採用が可能である。また、逆洗用ガスの放出方
式として所謂ブロック別逆洗方式を採用することも可能
である。特に、本件発明では、二重筒形バグフィルタ２
の排ガス通路Ｓ内の内圧をパルス変動させた場合には、
濾過面積に対する排ガス通路容積の比率が従前の単筒形
バグフィルタに比して約６０％程度に減少しているた
め、濾布面に対する圧力変動の効果が増大し、固着物が
一層容易に剥離されることになり、逆洗による排ガス処
理量の変動を大幅に引下げることが可能となる。As the backwashing method, it is possible to employ a compressed air reverse feeding method, a ramjet method or the like in addition to the pulse air method as in this embodiment. It is also possible to employ a so-called backwashing method for each block as a method of releasing the backwashing gas. Particularly, in the present invention, the double cylindrical bag filter 2
When the internal pressure in the exhaust gas passage S is pulse-changed,
Since the ratio of the exhaust gas passage volume to the filtration area is reduced to about 60% compared to the conventional single-cylinder bag filter, the effect of pressure fluctuation on the filter cloth surface is increased, and the adhered matter is more easily peeled off. As a result, it is possible to significantly reduce the fluctuation of the exhaust gas treatment amount due to backwashing.
【００２２】外径２００ｍｍφ、長さ４０００ｍｍの外
側バグフィルタ１１と、外径１４０ｍｍ、長さ３９００
ｍｍの内側バグフィルタ１２との組み合わせより成る二
重筒形バグフィルタ２を用いて、ごみ焼却炉からの排ガ
スＧを約２.６ＮＭ3／ＭＩＮ・本の割合で連続処理した
とき、媒塵含有量を約７／１０００に、ＨＣ１含有量を
約２.５／１００に、ＳＯｘ含有量を約１／１００に、
ＨＦ含有量を約１／１００に、夫々引下げ出来ることが
確認されている。An outer bag filter 11 having an outer diameter of 200 mmφ and a length of 4000 mm, and an outer diameter of 140 mm and a length of 3900
When the exhaust gas G from the refuse incinerator is continuously treated at a rate of about 2.6 NM 3 / MIN · book by using the double cylindrical bag filter 2 in combination with the inner bag filter 12 of mm, dust is contained. Amount to about 7/1000, HC1 content to about 2.5 / 100, SOx content to about 1/100,
It has been confirmed that the HF content can be reduced to about 1/100, respectively.
【００２３】図１０及び図１１は本発明の第２実施例を
示すものであり、逆洗方式として圧縮空気逆送型のブロ
ック別逆洗方式を採用した場合を示すものである。図に
於いて２１は圧縮空気供給管、２２は圧縮空気主弁、２
３はベンチュリー型の空気噴出ノズルであり、図１１に
示す如く、バグフィルタ２の各列毎に逆洗が行なわれ
る。FIGS. 10 and 11 show a second embodiment of the present invention, showing a case where a block-based backwashing system of the compressed air backfeeding type is adopted as the backwashing system. In the figure, 21 is a compressed air supply pipe, 22 is a compressed air main valve, 2
Reference numeral 3 is a Venturi type air jet nozzle, and as shown in FIG. 11, backwash is performed for each row of the bag filter 2.
【００２４】[0024]
【発明の効果】本発明では、バグフィルタ２を筒状の外
側バグフィルタ１１と筒状の内側バグフィルタ１２の組
み合わせとし、両者の間隙を清浄排ガスＧ０の排ガス通
路Ｓとすると共に、外側バグフィルタ１１へは外方よ
り、また、内側バグフィルタ１２へは内方より夫々排ガ
スＧを流入させる構成としている。その結果、従前の単
筒形バグフィルタを使用した排ガス処理装置に比較し
て、二重筒形バグフィルタ２の単位長さ当たりの濾過面
積が大幅に増大し、処理装置の容積を同等とした場合に
は、約１.５〜２.０倍の排ガスＧを処理することが可能
となる。同様に、処理ガス量を同一とした場合には、排
ガス処理装置の容積を約２／３程度に減少することがで
き、大幅な製造コストの低減が可能となる。また、バグ
フィルタ２の前記排ガス通路Ｓの空間容積は、従前の単
筒形バグフィルタの空間容積に比較して相当低減するこ
とが可能であり、その結果、逆洗ガスまたは圧縮空気の
パルス変動効果が増大し、ダストが剥離され易くなると
共に、前記排ガス流通路Ｓ内へ逆洗用ガスＭを供給する
ことにより、内・外両筒形バグフィルタ１１，１２を同
時に洗浄することができ、逆洗作業能率が大幅に向上す
る。 加えて、バグフィルタ２は装置本体１内から簡単
に外部へ引出すことができ、装置の保守管理が極めて容
易になる。According to the present invention, the bag filter 2 is a combination of the cylindrical outer bag filter 11 and the cylindrical inner bag filter 12, the gap between the two is used as the exhaust gas passage S of the clean exhaust gas G0, and the outer bag filter is also used. The exhaust gas G is introduced into the inside of the bag filter 12 from the outside and into the inside bag filter 12 from the inside of the bag filter 12. As a result, the filtration area per unit length of the double-cylinder bag filter 2 is significantly increased as compared with the exhaust gas treatment device using the conventional single-cylinder bag filter, and the volume of the treatment device is made equal. In this case, it becomes possible to treat about 1.5 to 2.0 times as much exhaust gas G. Similarly, if the amount of treated gas is the same, the volume of the exhaust gas treatment device can be reduced to about 2/3, and the manufacturing cost can be significantly reduced. Further, the space volume of the exhaust gas passage S of the bag filter 2 can be considerably reduced as compared with the space volume of the conventional single-cylinder bag filter, and as a result, pulse fluctuation of backwash gas or compressed air. The effect is increased, dust is easily separated, and by supplying the backwashing gas M into the exhaust gas passage S, the inner and outer tubular bag filters 11 and 12 can be simultaneously washed, The backwash work efficiency is greatly improved. In addition, the bag filter 2 can be easily pulled out from the inside of the main body 1 of the apparatus, and the maintenance of the apparatus is extremely easy.
【図１】本発明に係る排ガス処理装置の縦断面概要図で
ある。FIG. 1 is a schematic vertical sectional view of an exhaust gas treating apparatus according to the present invention.
【図２】本発明で使用する二重筒形バグフィルタの縦断
面図である。FIG. 2 is a vertical cross-sectional view of a double cylindrical bag filter used in the present invention.
【図３】図２のＡ−Ａ視平面図である。FIG. 3 is a plan view taken along line AA of FIG.
【図４】図２のＢ−Ｂ視断面図である。4 is a sectional view taken along line BB of FIG.
【図５】図２のＣ−Ｃ視断面図である。5 is a sectional view taken along line CC of FIG.
【図６】図２のＤ−Ｄ視断面図である。6 is a cross-sectional view taken along the line DD of FIG.
【図７】バグフィルタの上端部の部分拡大断面図であ
る。FIG. 7 is a partially enlarged sectional view of an upper end portion of a bag filter.
【図８】バグフィルタの下端部の部分拡大断面図であ
る。FIG. 8 is a partially enlarged sectional view of a lower end portion of the bag filter.
【図９】本発明に係る処理装置の逆洗操作の説明図であ
る。FIG. 9 is an explanatory diagram of a backwash operation of the processing apparatus according to the present invention.
【図１０】本発明の第２実施例に係る処理装置の縦断面
概要図である。FIG. 10 is a schematic vertical sectional view of a processing apparatus according to a second embodiment of the present invention.
【図１１】図１０のＥ−Ｅ視断面概要図である。11 is a schematic cross-sectional view taken along the line EE of FIG.
【図１２】従前のバグフィルタ型排ガス処理装置の縦断
面図である。FIG. 12 is a vertical sectional view of a conventional bag filter type exhaust gas treatment device.
Ｇは排ガス、Ｇ０は清浄排ガス、Ｍは逆洗用ガス、Ｓは
排ガス通路、１は装置本体、１ａはホッパ、１ｂは隔壁
板、２は二重筒形バグフィルタ、３はダスト排出口、４
は入口ダクト、５は出口ダクト、６は助剤供給口、６ａ
は助剤、７は吸収剤供給口、７ａは吸収剤、８は誘引通
風機、９は切替ダンパ、１０は押込送風機、１１は外側
バグフィルタ、１２は内側バグフィルタ、１３は布製濾
材、１４は支持かご、１５は上部取付金物、１５ａは鍔
部、１５ｂは短筒部、１５ｃは支持体、１５ｄは支持ボ
ルト挿通孔、１５ｅは固定具、１６は下部取付金物、１
６ａは濾材固定具、１７は布製濾材、１８は支持かご、
１９は上部蓋板、１９ａは支持ボルト、１９ｂは調整ナ
ット、１９ｃは固定具、２０は下部リング金物、２０ａ
は濾材固定具、２１は圧縮空気供給管、２２は空気主
弁、２３は空気噴出ノズル。G is an exhaust gas, G0 is a clean exhaust gas, M is a backwash gas, S is an exhaust gas passage, 1 is an apparatus main body, 1a is a hopper, 1b is a partition plate, 2 is a double cylindrical bag filter, 3 is a dust outlet, Four
Is an inlet duct, 5 is an outlet duct, 6 is an auxiliary agent supply port, 6a
Is an auxiliary agent, 7 is an absorbent supply port, 7a is an absorbent, 8 is an induced draft fan, 9 is a switching damper, 10 is a forced draft fan, 11 is an outer bag filter, 12 is an inner bag filter, 13 is a cloth filter medium, 14 Is a support basket, 15 is an upper attachment, 15a is a flange, 15b is a short cylinder, 15c is a support, 15d is a support bolt insertion hole, 15e is a fixture, 16 is a lower attachment, 1
6a is a filter medium fixing tool, 17 is a cloth filter medium, 18 is a support basket,
19 is an upper cover plate, 19a is a support bolt, 19b is an adjustment nut, 19c is a fixture, 20 is a lower ring metal fitting, 20a
Is a filter medium fixing tool, 21 is a compressed air supply pipe, 22 is an air main valve, and 23 is an air jet nozzle.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ０１Ｄ 53/34 １３４ Ｅ 6953−4Ｄ １３６ Ｚ 6953−4Ｄ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location B01D 53/34 134 E 6953-4D 136 Z 6953-4D
Claims (3)
剤（６ａ）と吸収剤（７ａ）を吹き込むと共に当該排ガ
ス（Ｇ）を装置本体（１）内へ導入し、バグフィルタに
より排ガス（Ｇ）内の媒塵、重金属、酸性ガス等を同時
に除去するようにした排ガス処理装置に於いて、前記バ
グフィルタを、筒状の外側へバグフィルタ（１１）と筒
状の内側バグフィルタ（１２）とを同芯状に組み合せ、
両者の間隙を清浄排ガス（Ｇ０）の排ガス通路（Ｓ）と
した二重筒形のバグフィルタ（２）とすると共に、前記
外側バグフィルタ（１１）の外方及び内側バグフィルタ
（１２）の内方から、各濾材（１３），（１７）を通し
て排ガス通路（Ｓ）内へ排ガス（Ｇ）を導出する構成と
したことを特徴とする排ガス処理装置。1. An auxiliary agent (6a) and an absorbent (7a) are blown into the exhaust gas (G) at the gas inlet side, and the exhaust gas (G) is introduced into the main body (1) of the apparatus, and a bag filter is used. In the exhaust gas treatment device for simultaneously removing dust particles, heavy metals, acid gases and the like in the exhaust gas (G), the bag filter is a tubular bag-shaped outer bag filter (11) and a cylindrical inner bag filter. Combine with (12) and concentric,
A double-cylinder bag filter (2) having a gap between the two as an exhaust gas passage (S) for clean exhaust gas (G0), and inside the outer bag filter (11) and the inner bag filter (12) The exhaust gas treatment device is characterized in that the exhaust gas (G) is led out into the exhaust gas passage (S) from each of the filter media (13) and (17).
材（１３）と支持かご（１４）とから成る筒形の外側バ
グフィルタ（１１）と、筒状の濾布製濾材（１７）と支
持かご（１８）とから成る筒状の内側バグフィルタ（１
２）との組合せとした請求項１に記載の排ガス処理装
置。2. A bag filter (2) comprising a cylindrical filter cloth filter material (13) and a support basket (14), and a cylindrical outer bag filter (11), and a cylindrical filter cloth filter material (17). And a cylindrical inner bag filter (1)
The exhaust gas treating apparatus according to claim 1, which is combined with 2).
剤（６ａ）と吸収剤（７ａ）を吹き込むと共に、当該排
ガス（Ｇ）を、内側バグフィルタ（１１）と外側バグフ
ィルタ（１２）との組み合せから成る二重筒形バグフィ
ルタ（２）を備えた装置本体（１）内へ導入し、前記外
側フィルタ（１１）の外方及び内側バグフィルタ（１
２）の内方から、各濾材（１３），（１７）を通して排
ガス通路（Ｓ）内へ清浄排ガス（Ｇ０）を導出すること
により、排ガス（Ｇ）内の媒塵、重金属、酸性ガス及び
硫黄酸化物等を除去すると共に、逆洗時には、二重筒形
バグフィルタ（２）の前記排ガス通路（Ｓ）内へ逆洗用
ガス（Ｍ）を圧送し、外側バグフィルタ（１１）及び内
側バグフィルタ（１２）を同時に洗浄する構成としたこ
とを特徴とする排ガス処理方法。3. The auxiliary agent (6a) and the absorbent (7a) are blown into the exhaust gas (G) at the gas inlet side, and the exhaust gas (G) is fed into the inner bag filter (11) and the outer bag filter (11). 12) is introduced into the apparatus main body (1) provided with a double-cylindrical bag filter (2) composed of a combination with the bag filter (2), and the outer and inner bag filters (1) of the outer filter (11) are introduced.
By introducing clean exhaust gas (G0) into the exhaust gas passage (S) from the inside of 2) through the respective filter media (13) and (17), dust particles, heavy metals, acid gases and sulfur in the exhaust gas (G). In addition to removing oxides and the like, at the time of backwashing, the backwashing gas (M) is pressure-fed into the exhaust gas passage (S) of the double cylindrical bag filter (2), and the outer bag filter (11) and the inner bag filter An exhaust gas treatment method, characterized in that the filter (12) is simultaneously cleaned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4024727A JPH05184855A (en) | 1992-01-14 | 1992-01-14 | Device for treating exhaust gas and method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4024727A JPH05184855A (en) | 1992-01-14 | 1992-01-14 | Device for treating exhaust gas and method therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05184855A true JPH05184855A (en) | 1993-07-27 |
Family
ID=12146190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4024727A Pending JPH05184855A (en) | 1992-01-14 | 1992-01-14 | Device for treating exhaust gas and method therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05184855A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09248425A (en) * | 1996-03-18 | 1997-09-22 | Takuma Co Ltd | Dioxine removing material, dioxine removing method, exhaust gas treatment equipment and dioxine removing material-regenerating method |
| KR100893502B1 (en) * | 2007-11-09 | 2009-04-15 | 주식회사 신성플랜트 | Filter bag cage |
| WO2009082072A1 (en) * | 2007-12-21 | 2009-07-02 | Koair Co., Ltd | Dust filtering collector for removing smoke and method for filtering smoke using same |
| CN101879405A (en) * | 2010-07-09 | 2010-11-10 | 宁波安尔达节能环保科技有限公司 | Dry-wet integrated desulfurizing dust remover |
| CN104258645A (en) * | 2014-09-28 | 2015-01-07 | 滁州友林科技发展有限公司 | Dustproof filtering bag |
| KR20170003208U (en) * | 2017-09-01 | 2017-09-13 | 삼중교역산업(주) | Double filter, bringing Collection bag |
| CN111482014A (en) * | 2020-03-18 | 2020-08-04 | 江苏东方滤袋股份有限公司 | Prevent electrostatic precipitator filter bag |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56126425A (en) * | 1980-03-11 | 1981-10-03 | Kurabo Ind Ltd | Purification method for acidic waste gas |
| JPS61293531A (en) * | 1985-06-21 | 1986-12-24 | Mitsubishi Heavy Ind Ltd | Treatment of exhaust gas of waste incineration |
| JPS62210028A (en) * | 1986-03-11 | 1987-09-16 | Zemuko Internatl Kk | Dust collector |
-
1992
- 1992-01-14 JP JP4024727A patent/JPH05184855A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56126425A (en) * | 1980-03-11 | 1981-10-03 | Kurabo Ind Ltd | Purification method for acidic waste gas |
| JPS61293531A (en) * | 1985-06-21 | 1986-12-24 | Mitsubishi Heavy Ind Ltd | Treatment of exhaust gas of waste incineration |
| JPS62210028A (en) * | 1986-03-11 | 1987-09-16 | Zemuko Internatl Kk | Dust collector |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09248425A (en) * | 1996-03-18 | 1997-09-22 | Takuma Co Ltd | Dioxine removing material, dioxine removing method, exhaust gas treatment equipment and dioxine removing material-regenerating method |
| KR100893502B1 (en) * | 2007-11-09 | 2009-04-15 | 주식회사 신성플랜트 | Filter bag cage |
| WO2009082072A1 (en) * | 2007-12-21 | 2009-07-02 | Koair Co., Ltd | Dust filtering collector for removing smoke and method for filtering smoke using same |
| CN101879405A (en) * | 2010-07-09 | 2010-11-10 | 宁波安尔达节能环保科技有限公司 | Dry-wet integrated desulfurizing dust remover |
| CN101879405B (en) | 2010-07-09 | 2012-07-25 | 宁波安尔达节能环保科技有限公司 | Dry-wet integrated desulfurizing dust remover |
| CN104258645A (en) * | 2014-09-28 | 2015-01-07 | 滁州友林科技发展有限公司 | Dustproof filtering bag |
| CN104258645B (en) * | 2014-09-28 | 2016-02-24 | 滁州友林科技发展有限公司 | A kind of dustproof filter bag |
| KR20170003208U (en) * | 2017-09-01 | 2017-09-13 | 삼중교역산업(주) | Double filter, bringing Collection bag |
| CN111482014A (en) * | 2020-03-18 | 2020-08-04 | 江苏东方滤袋股份有限公司 | Prevent electrostatic precipitator filter bag |
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