JP2964375B2 - Method for preventing clogging of bag filter for ash melting furnace - Google Patents
Method for preventing clogging of bag filter for ash melting furnaceInfo
- Publication number
- JP2964375B2 JP2964375B2 JP5189492A JP18949293A JP2964375B2 JP 2964375 B2 JP2964375 B2 JP 2964375B2 JP 5189492 A JP5189492 A JP 5189492A JP 18949293 A JP18949293 A JP 18949293A JP 2964375 B2 JP2964375 B2 JP 2964375B2
- Authority
- JP
- Japan
- Prior art keywords
- bag filter
- ash
- melting furnace
- exhaust gas
- clogging
- 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 - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
- F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chimneys And Flues (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明はごみ焼却炉から出る焼却
灰や飛灰を加熱溶解後、冷却固化し、容積の減容化およ
び無害化を効率的に行わしめる灰溶融炉から出る飛灰を
捕捉する灰溶融炉用パルス式バグフィルターに関し、よ
り詳細には同バグフィルターの目詰まり防止法に関する
ものである。 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to fly ash from an ash melting furnace which heats and melts incinerated ash and fly ash from a refuse incinerator, solidifies it by cooling, and reduces the volume and detoxifies efficiently. More specifically, the present invention relates to a method for preventing clogging of a bag filter for an ash melting furnace for trapping air .
【０００２】[0002]
【従来の技術】従来の一般的なパルス式バグフィルター
の操作条件は下記の通りである。2. Description of the Related Art The operating conditions of a conventional general pulse bag filter are as follows.
【０００３】 ・運転温度：１５０〜２００℃ ・濾過速度：１．０ｍ／ｍｉｎ[0003] Operating temperature: 150 to 200.degree. C.-Filtration speed: 1.0 m / min
【０００４】[0004]
【発明が解決しようとする課題】この操作条件でヒュー
ム等を多量に含有する灰溶融炉の飛灰の集塵にパルス式
バグフィルターを使用すると、図３に示すように、短時
間でバグフィルターに目詰まりが起り、運転が不能にな
る。Under the above operating conditions, if a pulse type bag filter is used to collect fly ash in an ash melting furnace containing a large amount of fumes and the like, as shown in FIG. Clogging occurs and operation becomes impossible.
【０００５】本発明は、操作条件の改善と目詰まり防止
剤の添加により上記問題を解決する濾過方法を提供する
ことを目的とする。An object of the present invention is to provide a filtration method which solves the above-mentioned problems by improving operating conditions and adding a clogging inhibitor.
【０００６】[0006]
【課題を解決するための手段】本発明によれば、焼却炉
から出る灰を溶融炉で加熱溶融した後、溶融炉から出る
排ガス中に含まれる飛灰を冷却固化し、ついで該飛灰を
パルス式バグフィルターで捕捉するにあたり、パルス式
バグフィルターの前流で排ガスに平均粒径約２μｍ〜２
０μｍの無機物よりなる目詰まり防止剤を１．０〜２．
０ｇ／ｍ3 （排ガス量）連続添加し、濾過速度を０．７
〜０．８ｍ／ｍｉｎに制御することを特徴とする灰溶融
炉用バグフィルターの目詰まり防止法が提供される。According to the present invention, an incinerator is provided.
Ash from the furnace is heated and melted in a melting furnace, then exits the melting furnace
The fly ash contained in the exhaust gas is cooled and solidified.
When capturing with a pulse-type bag filter, the exhaust gas has an average particle size of about 2 μm to 2 μm in front of the pulse-type bag filter.
An anti-clogging agent consisting of an inorganic substance of 0 μm is used in an amount of 1.0 to 2.
0 g / m 3 (exhaust gas amount) was continuously added, and the filtration rate was 0.7
A method for preventing clogging of a bag filter for an ash melting furnace, wherein the method is controlled to 0.8 m / min.
【０００７】目詰まり防止剤としてはＣａＣＯ3 、ケイ
ソウ土等が好ましい。As the anti-clogging agent, CaCO 3 , diatomaceous earth and the like are preferable.
【０００８】[0008]
【作用】ごみ焼却炉から出る焼却灰や飛灰は高温の灰溶
融炉でヒューム状となり、冷却固化された後、排ガスと
共にバグフィルターへ送られる。本発明では、バグフィ
ルターの前流で排ガスに所要量の目詰まり防止剤を連続
添加し、濾過速度を特定値に制御するので、バグフィル
ターの表面に付着している目詰まり防止剤に固化灰分が
付着し、これは防止剤と共にバグフィルターから排出さ
れる。したがって、固化灰分がバグフィルターの目詰ま
りを招くことが防止せられる。[Function] The incineration ash and fly ash emitted from the refuse incinerator become fume-like in a high-temperature ash melting furnace, cooled and solidified, and sent to a bag filter together with exhaust gas. In the present invention, a required amount of an anti-clogging agent is continuously added to the exhaust gas in front of the bag filter, and the filtration speed is controlled to a specific value, so that the clogging prevention attached to the surface of the bag filter is prevented. Solidified ash adheres to the agent and is discharged from the bag filter together with the inhibitor. Therefore, it is possible to prevent the solidified ash from causing clogging of the bag filter.
【０００９】[0009]
【実施例】本発明を実施例によりさらに具体的に説明す
る。EXAMPLES The present invention will be described more specifically with reference to examples.
【００１０】図１において、ごみ焼却炉から出る焼却灰
や飛灰は灰溶融炉(1) に導かれ、ここで油バーナ(2) に
よってヒューム状に加熱溶融される。灰溶融炉(1) から
出る排ガスは空気予熱器(3) に導かれ、ここで排ガス中
に含まれるヒューム状の灰分は冷却固化される。つい
で、この冷却固化された灰分をパルス式バグフィルター
(4) で捕捉するにあたり、バグフィルター(4) の前流で
排ガスに目詰まり防止剤が添加される。目詰まり防止剤
としては平均粒径２μｍのＣａＣＯ3 が１．５ｇ／ｍ3
（排ガス）使用される。すなわち、バグフィルター(4)
へ送られる飛灰を含む排ガスに、上述した所定粒径の目
詰まり防止剤が上述した所定の添加量で連続的に添加さ
れるのである。そして、上記目詰まり防止剤を含んだ排
ガスはパルス式バグフィルター(4) に導入され、ここで
排ガス中のヒューム等の飛灰が捕捉される。除塵後の排
ガスはファン(5) を介して煙突(6) から系外へ排出され
る。In FIG. 1, incineration ash and fly ash from a refuse incinerator are led to an ash melting furnace (1) where they are heated and melted in a fume shape by an oil burner (2). Exhaust gas leaving the ash melting furnace (1) is led to the air preheater (3), wherein the exhaust gas
Fume-like ash contained in is cooled and solidified. Next, the ash solidified by cooling is filtered by a pulse-type bag filter.
In trapping in (4), an anti-clogging agent is added to the exhaust gas in front of the bag filter (4) . As an anti-clogging agent, 1.5 g / m 3 of CaCO 3 having an average particle size of 2 μm was used.
(Exhaust gas) used. That is, the bag filter (4)
The flue gas containing fly ash sent to the
The anti-clogging agent is continuously added at the above-mentioned predetermined amount.
It is done. The exhaust gas containing the anti-clogging agent is introduced into a pulse type bag filter (4), where fly ash such as fumes in the exhaust gas is captured. The exhaust gas after dust removal is discharged out of the system from the chimney (6) via the fan (5).
【００１１】パルス式バグフィルター(4) の操作条件は
下記の通りである。The operating conditions of the pulse type bag filter (4) are as follows.
【００１２】 ・運転温度：１５０〜２００℃ ・濾過速度：０．７〜０．８ｍ／ｍｉｎ本発明方法にお
ける時間とバク差圧の関係を図２のグラフに示す。この
グラフから、本発明の方法によれば、長期間の使用後も
バグ差圧が上昇せず、バグフィルターの目詰まりが防止
せられることが判る。Operation temperature: 150 to 200 ° C. Filtration rate: 0.7 to 0.8 m / min The relationship between time and back pressure difference in the method of the present invention is shown in the graph of FIG. From this graph, it can be seen that according to the method of the present invention, the bag differential pressure does not increase even after long-term use, and clogging of the bag filter can be prevented.
【００１３】[0013]
【発明の効果】本発明の方法によれば、バグフィルター
の前流で排ガスに所要量の目詰まり防止剤を連続的に添
加し、濾過速度を特定値に制御するので、バグフィルタ
ーの表面に付着している目詰まり防止剤に固化灰分が付
着し、これは防止剤と共にバグフィルターから排出され
る。したがって、固化灰分がバグフィルターの目詰まり
を招くことが防止せられる。According to the method of the present invention, a required amount of an anti-clogging agent is continuously added to the exhaust gas in front of the bag filter to control the filtration speed to a specific value. The solidified ash adheres to the anti-clogging agent adhering to the surface of the bag filter and is discharged from the bag filter together with the anti-clogging agent. Therefore, it is possible to prevent the solidified ash from causing clogging of the bag filter.
【図１】本発明の実施例を示すフローシートである。FIG. 1 is a flow sheet showing an embodiment of the present invention.
【図２】本発明方法における時間とバク差圧の関係を示
すグラフである。FIG. 2 is a graph showing the relationship between time and differential pressure in the method of the present invention.
【図３】従来方法における時間とバク差圧の関係を示す
グラフである。FIG. 3 is a graph showing a relationship between time and a differential pressure in a conventional method.
１：灰溶融炉 ２：油バーナ ３：空気予熱器 ４：パルス式バグフィルター ５：ファン ６：煙突 1: Ash melting furnace 2: Oil burner 3: Air preheater 4: Pulse type bag filter 5: Fan 6: Chimney
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平４−90822（ＪＰ，Ａ) 実開 昭55−167419（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) B01D 46/04 104 B01D 46/44 F23J 15/00 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-90822 (JP, A) JP-A 55-167419 (JP, U) (58) Fields investigated (Int. Cl. 6 , DB name) B01D 46/04 104 B01D 46/44 F23J 15/00
Claims (1)
た後、溶融炉から出る排ガス中に含まれる飛灰を冷却固
化し、ついで該飛灰をパルス式バグフィルターで捕捉す
るにあたり、パルス式バグフィルターの前流で排ガスに
平均粒径約２μｍ〜２０μｍの無機物よりなる目詰まり
防止剤を１．０〜２．０ｇ／ｍ3 （排ガス量）連続添加
し、濾過速度を０．７〜０．８ｍ／ｍｉｎに制御するこ
とを特徴とする灰溶融炉用バグフィルターの目詰まり防
止法。An ash from an incinerator is melted by heating in a melting furnace.
After cooling, the fly ash contained in the exhaust gas
And then capture the fly ash with a pulsed bag filter
In this case, an anti-clogging agent consisting of an inorganic substance having an average particle size of about 2 μm to 20 μm is continuously added to the exhaust gas before the pulse-type bag filter in an amount of 1.0 to 2.0 g / m 3 (exhaust gas amount), and the filtration rate is reduced. A method for preventing clogging of a bag filter for an ash melting furnace, which is controlled at 0.7 to 0.8 m / min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5189492A JP2964375B2 (en) | 1993-07-30 | 1993-07-30 | Method for preventing clogging of bag filter for ash melting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5189492A JP2964375B2 (en) | 1993-07-30 | 1993-07-30 | Method for preventing clogging of bag filter for ash melting furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0739713A JPH0739713A (en) | 1995-02-10 |
| JP2964375B2 true JP2964375B2 (en) | 1999-10-18 |
Family
ID=16242175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5189492A Expired - Lifetime JP2964375B2 (en) | 1993-07-30 | 1993-07-30 | Method for preventing clogging of bag filter for ash melting furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2964375B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2736141B1 (en) * | 1995-06-30 | 1997-08-08 | Gec Alsthom Stein Ind | PROCESS FOR HOT DUST COLLECTION OF COMBUSTION FUMES, PARTICULARLY FOR A HOUSEHOLD INCINERATION UNIT |
-
1993
- 1993-07-30 JP JP5189492A patent/JP2964375B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0739713A (en) | 1995-02-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2964375B2 (en) | Method for preventing clogging of bag filter for ash melting furnace | |
| JPH02107301A (en) | Method and apparatus for separating vapor like metal compound from carrier gas | |
| NL1007579C2 (en) | Installation for the selective cleaning of gases from a cremation oven. | |
| JP5054985B2 (en) | Dust monitoring and removal method in equipment | |
| JPH035843B2 (en) | ||
| JP4822849B2 (en) | Exhaust gas treatment equipment for ash melting furnace | |
| JP4474297B2 (en) | Waste treatment facility | |
| JP3704351B2 (en) | Improvements in the process for heat treatment of residues from cleanup of fumes and industrial processes that emit fumes. | |
| JPH11244657A (en) | Treatment of waste gas of ash melting furnace and device therefor | |
| JPH11248371A (en) | Waste heat recovery system for steel making electric furnace | |
| JPH0299112A (en) | Method for regenerating filter for use in exhaust gas of diesel engine | |
| JP3205273B2 (en) | Waste incineration ash treatment method | |
| JPH07251021A (en) | Exhaust gas treating apparatus with bag filter | |
| JP3045951B2 (en) | Waste incineration equipment | |
| DK0751349T3 (en) | Process for heat exhaust combustion flue gas, especially for a waste incinerator | |
| JPH0635887B2 (en) | Exhaust gas treatment method for incinerator | |
| JPH08152126A (en) | Dust build-up preventing method in heat recovery unit of ash melting plant | |
| JPH03224611A (en) | Method for controlling generation of dioxine | |
| JP3072457B2 (en) | Method of treating exhaust gas from electric furnace or scrap preheating device for electric furnace | |
| JP2002153838A (en) | Method for treating activated carbon with dioxins adsorbed | |
| JP2008119592A (en) | Exhaust gas treatment method and its system | |
| JP3307302B2 (en) | Exhaust gas treatment method for electric furnace | |
| JPH0487676A (en) | Collecting and solidifying method of flying ash in fluidized-bed municipal refuse incinerator | |
| JP2000176229A (en) | Treatment of fly ash and device therefor | |
| JPH0643676Y2 (en) | Dust collector protection device in scrap preheating process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19990622 |