JPH0679118A - Bag filter for incinerator - Google Patents
Bag filter for incineratorInfo
- Publication number
- JPH0679118A JPH0679118A JP23397992A JP23397992A JPH0679118A JP H0679118 A JPH0679118 A JP H0679118A JP 23397992 A JP23397992 A JP 23397992A JP 23397992 A JP23397992 A JP 23397992A JP H0679118 A JPH0679118 A JP H0679118A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- incinerator
- bag filter
- filter
- temperature
- 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
Landscapes
- Chimneys And Flues (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、例えば、都市ゴミ焼却
炉の排ガス中の媒塵を捕集する焼却炉用バグフィルタに
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bag filter for an incinerator that collects dust particles in the exhaust gas of an urban refuse incinerator, for example.
【０００２】[0002]
【従来の技術】図３（Ａ）は、ゴミ焼却炉立上げ時の焼
却炉用バグフィルタの回路図、図３（Ｂ）は、平常運転
時の焼却炉用バグフィルタの回路図を示し、これらの図
において、１はろ布を備えたバグフィルタであって、こ
のバグフィルタ１の入口側と出口側の煙路はバイパス２
でつながれている。ゴミ焼却炉から排出された排ガスは
切り換え弁３，４を操作することによってバイパス２側
に流れたり、バグフィルタ１側に流れたりするように構
成されている。2. Description of the Related Art FIG. 3 (A) is a circuit diagram of a bag filter for an incinerator when starting up a refuse incinerator, and FIG. 3 (B) is a circuit diagram of a bag filter for an incinerator during normal operation. In these drawings, 1 is a bag filter provided with a filter cloth, and the smoke passage on the inlet side and the outlet side of the bag filter 1 is a bypass 2
It is connected. The exhaust gas discharged from the refuse incinerator is configured to flow to the bypass 2 side or the bag filter 1 side by operating the switching valves 3 and 4.
【０００３】焼却炉用バグフィルタは、バグフィルタ１
の入口側でＣａ（ＯＨ）2 （消石灰）を噴霧することに
より排ガス中の酸性ガスを中和する。そのため、バグフ
ィルタ１のろ布上には消石灰やＣａＣｌ2 等の潮解性の
高い物質が付着しているが、既にこれらの物質が付着し
ているバグフィルタ１に１３０℃未満の排ガスを通す
と、ろ布上に残存している消石灰やＣａＣｌ2 等が排ガ
ス中の水分を吸収し、バグフィルタ１のろ布が湿潤す
る。ろ布が湿潤すると排ガス中の媒塵等の捕集の効率が
低下する。従って、バグフィルタ１入口側の排ガス温度
が最低１３０℃以上にならないとバグフィルタ１への通
ガスはできない。このため従来、バグフィルタ１入口側
の排ガスの温度が１３０℃以下の時（特に焼却炉立上
げ、立下げ時）は切り換え弁３を弁開し、切り換え弁４
を弁閉してバイパス２側に排ガスを通していた。The bag filter for the incinerator is the bag filter 1
The acidic gas in the exhaust gas is neutralized by spraying Ca (OH) 2 (slaked lime) on the inlet side of. Therefore, substances such as slaked lime and CaCl 2 having a high deliquescent property are attached to the filter cloth of the bag filter 1. However, if exhaust gas of less than 130 ° C. is passed through the bag filter 1 to which these substances have already adhered. The slaked lime, CaCl 2 and the like remaining on the filter cloth absorb water in the exhaust gas, and the filter cloth of the bag filter 1 becomes wet. When the filter cloth becomes wet, the efficiency of collecting dust particles in the exhaust gas decreases. Therefore, gas cannot pass through the bag filter 1 unless the exhaust gas temperature on the inlet side of the bag filter 1 is at least 130 ° C. or higher. Therefore, conventionally, when the temperature of the exhaust gas at the inlet side of the bag filter 1 is 130 ° C. or lower (particularly when the incinerator is started up and shut down), the switching valve 3 is opened and the switching valve 4 is opened.
Was closed and exhaust gas was passed to the bypass 2 side.
【０００４】[0004]
【発明が解決しようとする課題】しかし、上記従来の焼
却炉用バグフィルタでは、バグフィルタ１の入口側の排
ガス温度が１３０℃以下の時は排ガス中の媒塵の捕集が
できないという問題点があった。However, in the conventional bag filter for an incinerator described above, when the temperature of the exhaust gas at the inlet side of the bag filter 1 is 130 ° C. or less, the dust particles in the exhaust gas cannot be collected. was there.
【０００５】本発明は、このような従来の問題点を解決
するためになされたもので、バグフィルタ入口側の排ガ
スの温度が１３０℃以下でも排ガス中の媒塵の捕集が可
能な焼却炉用バグフィルタを提供することを目的として
いる。The present invention has been made in order to solve such a conventional problem, and an incinerator capable of collecting dust particles in exhaust gas even if the temperature of the exhaust gas at the bag filter inlet side is 130 ° C. or lower. The purpose is to provide a bug filter for.
【０００６】[0006]
【課題を解決するための手段】本発明の焼却炉用バグフ
ィルタ 焼却炉から排出された排ガス中の媒塵を捕集す
る焼却炉用バグフィルタにおいて、焼却炉から排出され
る排ガスが所定の温度以下の時に排ガス中の媒塵を捕集
する低温用フィルタを備えると共に、煙路に排ガスの流
れを前記低温用フィルタ側に切り換える切換手段を設け
たことを特徴としている。Bag filter for incinerator according to the present invention In a bag filter for incinerator that collects dust particles in the exhaust gas discharged from the incinerator, the exhaust gas discharged from the incinerator has a predetermined temperature. A low-temperature filter for collecting dust particles in the exhaust gas at the time of the following is provided, and a switching means for switching the exhaust gas flow to the low-temperature filter side is provided in the smoke passage.
【０００７】[0007]
【作用】上記した構成により、低温用フィルタが所定の
温度以下の排ガス中に含まれる媒塵を捕集し、従来、立
上げ、立下げ時に媒塵が混じったまま放出されていた焼
却炉の排ガスから媒塵を取り除くことができる。With the above-described structure, the low temperature filter collects the dust particles contained in the exhaust gas at a temperature lower than the predetermined temperature, and in the conventional incinerator, the dust particles are discharged while being mixed at the time of startup and shutdown. It is possible to remove dust particles from the exhaust gas.
【０００８】[0008]
【実施例】以下に本発明の一実施例を図面に基づいて説
明する。図１は本発明の第１の実施例の焼却炉用バグフ
ィルタの回路図である。この図１において、11がバグフ
ィルタであって、このバグフィルタ11の入口側と出口側
の煙路はバイパス12でつながれている。このバイパス12
には、１３０℃以下の低温排ガス中に含まれる媒塵をろ
過する低温用フィルタ13を設けている。バグフィルタ11
の入口側と出口側には排ガスの流れを切り換える切換手
段たる切り換え弁14,15 が設けられ、ゴミ焼却炉から排
出された排ガスをバイパス12側に流したり、バグフィル
タ11側に流したりできる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a circuit diagram of a bag filter for an incinerator according to the first embodiment of the present invention. In FIG. 1, reference numeral 11 denotes a bag filter, and the inlet side and outlet side smoke paths of the bag filter 11 are connected by a bypass 12. This bypass 12
A low-temperature filter 13 for filtering dust particles contained in low-temperature exhaust gas at 130 ° C. or lower is provided therein. Bug filter 11
Switching valves 14 and 15 as switching means for switching the flow of the exhaust gas are provided on the inlet side and the outlet side of the exhaust gas, and the exhaust gas discharged from the refuse incinerator can be passed to the bypass 12 side or the bag filter 11 side.
【０００９】次に、上記構成の作用を説明する。バグフ
ィルタ11の入口側の排ガスの温度が１３０℃以下の立上
げ、立下げ時には、バグフィルタ11入口で消石灰を噴霧
することなく、切り換え弁14を弁開し、切り換え弁15を
弁閉し、バイパス12側に低温排ガスを流す。このように
低温排ガスをバイパス12側に流すことによって排ガス中
の媒塵を低温用フィルタ13で捕集することができる。Next, the operation of the above configuration will be described. When the temperature of the exhaust gas on the inlet side of the bag filter 11 rises and falls below 130 ° C., the switching valve 14 is opened and the switching valve 15 is closed without spraying slaked lime at the inlet of the bag filter 11. Low-temperature exhaust gas is made to flow to the bypass 12 side. By passing the low temperature exhaust gas to the bypass 12 side in this way, the dust particles in the exhaust gas can be collected by the low temperature filter 13.
【００１０】なお、前記のようにバグフィルタ11入口で
消石灰を噴霧していないため、低温用フィルタ13にろ布
を使用したとしても、ろ布には消石灰やＣａＣｌ2 等が
付着しないため湿潤せず、フィルタとしての機能を十分
発揮する。Since slaked lime is not sprayed at the entrance of the bag filter 11 as described above, even if a filter cloth is used for the low temperature filter 13, slaked lime, CaCl 2 or the like does not adhere to the filter cloth, so that the filter cloth should be moistened. Instead, it fully exerts its function as a filter.
【００１１】なお、低温用フィルタ13に例えば電気集塵
機などを使用してもよいことは言うまでもない。バグフ
ィルタ11の入口側の排ガスの温度が１３０℃以上になっ
た時は、切り換え弁14を弁閉し、切り換え弁15を弁開
し、通常運転に切り換え、バグフィルタ11側に排ガスを
流して排ガス中の媒塵を捕集する。Needless to say, an electric dust collector or the like may be used as the low temperature filter 13. When the temperature of the exhaust gas on the inlet side of the bag filter 11 becomes 130 ° C. or higher, the switching valve 14 is closed, the switching valve 15 is opened, the normal operation is switched, and the exhaust gas is flowed to the bag filter 11 side. Collects dust particles in exhaust gas.
【００１２】次に、第２の実施例を図面に基づいて説明
する。図２は本発明の第２の実施例の焼却炉用バグフィ
ルタの回路図である。この第２の実施例は、第１の実施
例とは異なり、入口側と出口側をつなぐバイパスを設け
ず、バグフィルタ21の一部を低温用フィルタ22で構成し
ている。Next, a second embodiment will be described with reference to the drawings. FIG. 2 is a circuit diagram of a bag filter for an incinerator according to the second embodiment of the present invention. In the second embodiment, unlike the first embodiment, a bypass connecting the inlet side and the outlet side is not provided, and a part of the bag filter 21 is composed of the low temperature filter 22.
【００１３】この第２の実施例を使用する時も第１の実
施例とほぼ同じであって、バグフィルタ21入口で消石灰
を噴霧することなく、切り換え弁23を弁開して都市ゴミ
焼却炉から出た低温排ガスを先ず低温用フィルタ22に通
して排ガス中の媒塵を捕集する。排ガスの温度が１３０
℃以上になった時は、通常運転に切り換える。When this second embodiment is used, it is almost the same as the first embodiment, and the switching valve 23 is opened without spraying slaked lime at the inlet of the bag filter 21, and the municipal waste incinerator is opened. The low temperature exhaust gas emitted from the exhaust gas is first passed through a low temperature filter 22 to collect dust particles in the exhaust gas. Exhaust gas temperature is 130
When the temperature rises above ℃, switch to normal operation.
【００１４】[0014]
【発明の効果】以上述べたように本発明によれば、焼却
炉から排出される排ガスが所定の温度以下の時に排ガス
中の媒塵を捕集する低温用フィルタを設けたことによ
り、バグフィルタ入口側の排ガスの温度が所定温度以下
の時でも焼却炉から排出される排ガス中の媒塵を捕集す
ることが可能となる。As described above, according to the present invention, the bag filter is provided with the low-temperature filter for collecting the dust particles in the exhaust gas when the exhaust gas discharged from the incinerator is below the predetermined temperature. Even when the temperature of the exhaust gas on the inlet side is equal to or lower than the predetermined temperature, it is possible to collect the dust particles in the exhaust gas discharged from the incinerator.
【図１】本発明の焼却炉用バグフィルタの第１の実施例
の回路図である。FIG. 1 is a circuit diagram of a first embodiment of a bag filter for an incinerator according to the present invention.
【図２】本発明の焼却炉用バグフィルタの第２の実施例
の回路図である。FIG. 2 is a circuit diagram of a second embodiment of the bag filter for an incinerator according to the present invention.
【図３】従来の焼却炉用バグフィルタの回路図である。FIG. 3 is a circuit diagram of a conventional bag filter for an incinerator.
１１ バグフィルタ １３ 低温用フィルタ １４ 切り換え弁 １５ 切り換え弁 ２１ バグフィルタ ２２ 低温用フィルタ ２３ 切り換え弁 11 Bag filter 13 Low temperature filter 14 Switching valve 15 Switching valve 21 Bag filter 22 Low temperature filter 23 Switching valve
Claims (1)
捕集する焼却炉用バグフィルタにおいて、焼却炉から排
出される排ガスが所定の温度以下の時に排ガス中の媒塵
を捕集する低温用フィルタを備えると共に、煙路に排ガ
スの流れを前記低温用フィルタ側に切り換える切換手段
を設けたことを特徴とする焼却炉用バグフィルタ。1. A bag filter for an incinerator that collects dust particles in exhaust gas discharged from an incinerator, and collects dust particles in the exhaust gas when the exhaust gas discharged from the incinerator is below a predetermined temperature. A bag filter for an incinerator, comprising a low temperature filter and switching means for switching the flow of exhaust gas to the low temperature filter side in a smoke path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23397992A JPH0679118A (en) | 1992-09-02 | 1992-09-02 | Bag filter for incinerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23397992A JPH0679118A (en) | 1992-09-02 | 1992-09-02 | Bag filter for incinerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0679118A true JPH0679118A (en) | 1994-03-22 |
Family
ID=16963637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23397992A Pending JPH0679118A (en) | 1992-09-02 | 1992-09-02 | Bag filter for incinerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0679118A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008132424A (en) * | 2006-11-28 | 2008-06-12 | Mitsui Eng & Shipbuild Co Ltd | Exhaust gas-treating device and operating method of waste treatment facility equipped with the same |
| US7545399B2 (en) | 2006-01-19 | 2009-06-09 | Seiko Epson Corporation | Line head and image forming apparatus using the same |
| CN113058346A (en) * | 2021-04-03 | 2021-07-02 | 钞鹏 | Flue gas purification treatment system and method for intelligent thermal power plant |
-
1992
- 1992-09-02 JP JP23397992A patent/JPH0679118A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7545399B2 (en) | 2006-01-19 | 2009-06-09 | Seiko Epson Corporation | Line head and image forming apparatus using the same |
| JP2008132424A (en) * | 2006-11-28 | 2008-06-12 | Mitsui Eng & Shipbuild Co Ltd | Exhaust gas-treating device and operating method of waste treatment facility equipped with the same |
| CN113058346A (en) * | 2021-04-03 | 2021-07-02 | 钞鹏 | Flue gas purification treatment system and method for intelligent thermal power plant |
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