JP3018748B2 - Control device for bag filter - Google Patents
Control device for bag filterInfo
- Publication number
- JP3018748B2 JP3018748B2 JP4167042A JP16704292A JP3018748B2 JP 3018748 B2 JP3018748 B2 JP 3018748B2 JP 4167042 A JP4167042 A JP 4167042A JP 16704292 A JP16704292 A JP 16704292A JP 3018748 B2 JP3018748 B2 JP 3018748B2
- Authority
- JP
- Japan
- Prior art keywords
- bag filter
- filter
- control device
- filter cloth
- bag
- 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 - Fee Related
Links
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明はバッグフィルタ濾過室へ
の流入含塵ガスを遮断して空気を逆に流しながら濾布に
付着したダストを払い落す逆洗払い落し方式を採用した
バッグフィルタの制御装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bag filter which employs a back-washing method in which dust adhering to a filter cloth is wiped off while dust-containing gas flowing into a bag filter filtration chamber is shut off and air flows backward. It relates to a control device.
【０００２】[0002]
【従来の技術】従来，バッグフィルタの濾布を取り替え
るにあたっての判断材料としては次が上げられる。 １．バッグフィルタ内部を人間により濾布に異常ないか
どうか調査していた。 ２．バッグフィルタ出入口のガス圧力差を測定する差圧
検出器とバッグフィルタ出口に設けた流量検出器からの
出力信号により演算し，逆洗時及び逆洗後の圧力損失差
が設定値以上であるかどうかを確認し異常検出してい
る。 ３．バッグフィルタ出口煙道に設けられた媒塵濃度計に
より媒塵濃度が規定値か否かを検出し，規定値以上の場
合，異常検出している。2. Description of the Related Art Heretofore, the following can be cited as criteria for changing the filter cloth of a bag filter. 1. The inside of the bag filter was examined by a human for abnormalities in the filter cloth. 2. Calculated based on the output signals from the differential pressure detector that measures the gas pressure difference between the inlet and outlet of the bag filter and the flow detector provided at the outlet of the bag filter, and whether the pressure loss difference during and after backwashing is equal to or greater than the set value. Check whether it is abnormal. 3. A dust concentration meter provided in the bag filter outlet flue detects whether the dust concentration is a specified value or not.
【０００３】このような検出確認方法を判断材料として
いることから，濾布破損検出を人間又は検出器に依在す
ることになる為，異常検出の精度に欠けること，また人
為的に確認する場合は，バッグフィルタが停止状態にあ
ること，検出器にて異常が検出された場合はすでに濾布
の破損が発生しており，含塵ガスが処理されずにそのま
ま大気放出となり環境問題となっている。[0003] Since such a detection confirmation method is used as a judgment material, the detection of the filter cloth breakage depends on a person or a detector. Therefore, the accuracy of the abnormality detection is lacking. If the bag filter is stopped and the detector detects an abnormality, the filter cloth has already been damaged and the dust-containing gas is not treated and is released to the atmosphere as it is, causing environmental problems. I have.
【０００４】[0004]
【発明が解決しようとする課題】本発明は，濾布の破損
を人為的または検出器により確認する方法でなく，逆洗
回数と濾布の寿命の関係から濾布の破損前に取り替え表
示することにより，信頼性が高く経済的なバッグフィル
タの制御装置を提案するものである。The present invention is not a method of checking the damage of the filter cloth artificially or by using a detector, but replaces and displays the damage before the filter cloth is damaged due to the relationship between the number of backwashing times and the life of the filter cloth. Thus, a highly reliable and economical bag filter control device is proposed.
【０００５】[0005]
【課題を解決するための手段】本発明は，濾布の破損を
人為的または検出器にて確認していたものを逆洗回数と
濾布の寿命の関係から破損する前に交換時期を表示し知
らせるものである。SUMMARY OF THE INVENTION According to the present invention, the replacement time is indicated before the filter cloth is damaged due to the relation between the number of times of backwashing and the life of the filter cloth. To inform you.
【０００６】[0006]
【実 施 例】図１は，本発明に係るバッグフィルタ制
御装置１０の実施例を示したものである。煙道に設置さ
れたバッグフィルタ１は，この例では４つのバッグフィ
ルタ濾過室１ａ〜１ｄで構成され，夫々には多数の濾布
が取付けられてバッグフィルタ濾過室を通過する含塵ガ
スのダストが付着する。逆洗処理は演算処理部１０に設
けられた逆洗制御器２０からの指令Ｄｏに基づいて循環
的に行なわれる。FIG. 1 shows an embodiment of a bag filter control device 10 according to the present invention. In this example, the bag filter 1 installed in the flue is composed of four bag filter filtration chambers 1a to 1d, each of which is provided with a large number of filter cloths, and the dust containing dust passing through the bag filter filtration chamber. Adheres. The backwash process is cyclically performed based on a command Do from a backwash controller 20 provided in the arithmetic processing unit 10.
【０００７】逆洗制御器２０からの逆洗指令を交換時期
算出制御器３０に入力し，制御器内にあらかじめ入力し
ておいた濾布の寿命回数以上になった場合，濾過室異常
表示盤４０に出力し，濾布の交換時期を表示点灯する。When a backwash command from the backwash controller 20 is input to the replacement time calculation controller 30 and the number of service life of the filter cloth previously input in the controller is exceeded, a filter chamber abnormality display panel is displayed. Output to 40, and display and light the filter cloth replacement time.
【０００８】なお，濾布の寿命回数は予め高精度差圧計
を用い，寿命までの逆洗回数を図２に示すデータによ
り，濾布の材質等種別ごとに調査しておく。The number of service life of the filter cloth is determined in advance by using a high-precision differential pressure gauge, and the number of backwashing until the service life is checked for each type of filter cloth material based on the data shown in FIG.
【０００９】[0009]
【発明の効果】制御装置内の処理で破損に達する前の段
階で濾布の交換を表示器によりオペレータに知らせるこ
とにより事前対応が可能なこと，及び設備費を大巾に低
減できる。According to the present invention, it is possible to notify the operator of the replacement of the filter cloth by a display at the stage before the damage is reached in the processing in the control device, so that it is possible to take a precautionary measure and to greatly reduce the equipment cost.
【図１】本発明に係るバッグフィルタ制御装置の実施例
を示す系統図。FIG. 1 is a system diagram showing an embodiment of a bag filter control device according to the present invention.
【図２】濾布の寿命を求めるための逆洗回数を得るデー
タの一例。FIG. 2 is an example of data for obtaining the number of times of backwashing for obtaining the life of a filter cloth.
１ バッグフィルタ本体 １ａ〜１ｄ バッグフィルタ濾過室 １０ 演算処理部 ２０ 逆洗制御器 ３０ 濾布交換時期算出制御器 ４０ 濾過室異常表示盤 DESCRIPTION OF SYMBOLS 1 Bag filter main body 1a-1d Bag filter filtration room 10 Arithmetic processing part 20 Backwash controller 30 Filter cloth replacement time calculation controller 40 Filtration room abnormality display panel
Claims (1)
を遮断して空気を逆に流しながら濾布に付着したダスト
を払い落す逆洗払い落し方式の多室構造のバッグフィル
タ制御装置において，逆洗実施回数を記憶し，逆洗回数
と濾布の寿命の関係からバッグフィルタ濾過室に対応し
た表示部を有する濾過室異常表示盤に適正濾布交換時期
を表示するようにしたことを特徴とするバッグフィルタ
の制御装置。A bag filter control device having a multi-chamber structure of a back-washing and removing type, wherein dust adhering to a filter cloth is removed while blocking dust-containing gas flowing into a bag filter filtration chamber and flowing air in reverse. The number of times of backwashing is stored, and the appropriate filter cloth replacement time is displayed on the filter room abnormality display panel that has a display section corresponding to the bag filter filtration room, based on the relationship between the number of backwashes and the life of the filter cloth. Control device for the bag filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4167042A JP3018748B2 (en) | 1992-06-02 | 1992-06-02 | Control device for bag filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4167042A JP3018748B2 (en) | 1992-06-02 | 1992-06-02 | Control device for bag filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06134233A JPH06134233A (en) | 1994-05-17 |
| JP3018748B2 true JP3018748B2 (en) | 2000-03-13 |
Family
ID=15842311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4167042A Expired - Fee Related JP3018748B2 (en) | 1992-06-02 | 1992-06-02 | Control device for bag filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3018748B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7202842B2 (en) * | 2018-10-19 | 2023-01-12 | 三菱重工業株式会社 | Ash processing equipment, power plant, and method of operating ash processing equipment |
-
1992
- 1992-06-02 JP JP4167042A patent/JP3018748B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06134233A (en) | 1994-05-17 |
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