JPH0293340A - Detection of damaged filter cloth in bag filter - Google Patents
Detection of damaged filter cloth in bag filterInfo
- Publication number
- JPH0293340A JPH0293340A JP24426888A JP24426888A JPH0293340A JP H0293340 A JPH0293340 A JP H0293340A JP 24426888 A JP24426888 A JP 24426888A JP 24426888 A JP24426888 A JP 24426888A JP H0293340 A JPH0293340 A JP H0293340A
- Authority
- JP
- Japan
- Prior art keywords
- filter
- cloth
- bag filter
- dust
- damaged
- 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.)
- Granted
Links
- 239000004744 fabric Substances 0.000 title claims abstract description 36
- 238000001514 detection method Methods 0.000 title 1
- 239000000428 dust Substances 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims description 11
- 238000005259 measurement Methods 0.000 claims description 5
- 230000001680 brushing effect Effects 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 3
- 239000004071 soot Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野１
本発明は、特にパルスジェット式バグフィルタ−におけ
る破損が布の検知方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field 1] The present invention particularly relates to a method for detecting fabric damage in a pulse jet type bag filter.
［従来の技術１
一般に、パルスノヱノト式バグフィルタ−は、第４図お
よびｒｔ４ｓ図に示すように、ｌ布１３で濾過すれるべ
き粉塵を含む〃スは、〃ス入ロ１４ｈ・らバグフィルタ
−内部へ流入する。ここには複数の濾布１３が取付けら
れていて、粉塵はｒ布１３の外面で捕捉される。除塵後
の清浄〃スは〃ス出ロ１５から排出される。[Prior Art 1] In general, in a pulse-node type bag filter, as shown in FIG. Flow inside. A plurality of filter cloths 13 are attached here, and dust is captured on the outer surface of the r-cloths 13. The clean soot after dust removal is discharged from the soot outlet 15.
濾布１３の外面で捕捉された粉塵は、圧縮空気の噴射に
よって払い落とされる。その機構は次の通りである。Dust trapped on the outer surface of the filter cloth 13 is brushed off by a jet of compressed air. The mechanism is as follows.
圧縮空気は圧縮タンクに蓄えられ、電磁１６弁に通電す
ることによりグイヤ７ラム１７を開位置に動かす、グイ
ヤ７ラム１７が開位置になると、圧縮空気がパイプ１８
を経由して、ノズル１９により濾布１３に噴射される。Compressed air is stored in a compression tank and is moved to the open position by energizing the electromagnetic valve 16. When the Guya 7 ram 17 is in the open position, the compressed air flows into the pipe 18.
The liquid is sprayed onto the filter cloth 13 by the nozzle 19 via the .
噴射後は、一定時間ずつ他のパイプ１８へ順次移行して
行き、−サイクル後、元のノズルに戻る。払い落としは
、このパターンを繰返す。After the injection, the nozzle sequentially moves to other pipes 18 for a certain period of time, and returns to the original nozzle after a cycle. This pattern is repeated for brushing off.
また、濾布１３の内部には電型のリテーナ−２０が挿入
されていて、これによってが布の円筒形状が維持されて
いる。そして、このが布１３はバグプレート２１に取付
けられている。Further, an electric type retainer 20 is inserted inside the filter cloth 13, and this maintains the cylindrical shape of the cloth. This gusset cloth 13 is attached to the bag plate 21.
濾布１３の素材としては、〃ス性状に応じ種々の化学繊
維やガラス繊維が用いられる。このｒ布１３は、運転中
は含塵〃スに常に曝されるため、時間の経過とともに化
学的な又は摩耗等の物理的な劣化を起し、最終的に破損
に至る。As the material for the filter cloth 13, various chemical fibers and glass fibers can be used depending on the properties of the soot. Since this R cloth 13 is constantly exposed to dust-containing dust during operation, it undergoes chemical or physical deterioration such as wear over time, eventually leading to breakage.
この濾布の破損が発生すると、破損部分より粉塵かが市
内に流れ込み、〃ス出ロ１５に至る。When this filter cloth is damaged, dust flows into the city from the damaged part and reaches the waste outlet 15.
この粉塵の清浄側への流れ込みは、バグフィルタ−の機
能を喪失させるものであり、時にはプラントの操業を停
止し、破損が布の取り替えが必要となる。This flow of dust into the clean side causes the bag filter to lose its function, sometimes requiring plant operation to be stopped and the damaged fabric to be replaced.
このように、バグフィルタ−は、いずれ破損し取り替え
が必要となるものであるが、その時期や破損発生部分の
予測が困難である。そのため、プラントの操業停止が困
難なプロセス、例えば、石炭焚発電ボイラー用プロセス
では、！＠６図に示すように、多室にＷ成した室２２内
にバグフィルタ−２３を多列に配置し、通〃ス中に１室
２２の入ログンパ２４及び出口ダンパ２５を開とし、ｒ
布２３の取り替えが行えるようにしている。As described above, bag filters will eventually break and need to be replaced, but it is difficult to predict when this will happen or where the breakage will occur. Therefore, in processes where it is difficult to shut down the plant, for example, processes for coal-fired power boilers! @6 As shown in Figure 6, bag filters 23 are arranged in multiple rows in the multiple W-shaped chambers 22, and the inlet damper 24 and outlet damper 25 of one chamber 22 are opened during passage.
The cloth 23 can be replaced.
１室構成に於いても、多室構成に於いても、ｒ布の取り
替え時は、バグフィルタ−の天井マンホールを開け、バ
グプレート上のダスト堆積状態を観察し、破損が布を発
見し、そのｒ布の取り替えを行なう。When replacing the r-cloth, whether in a single-chamber configuration or in a multi-chamber configuration, open the ceiling manhole of the bag filter, observe the state of dust accumulation on the bag plate, and detect any damage to the fabric. Replace the r cloth.
１発明が解決しようとする課題１
しかしながら、多数のが布の中から、この破損が布を発
見することは容易ではなく、特に大型のバグフィルタ−
では、数千率のが布の中から発見する場合、かなりの時
間が必要となる。1 Problem to be Solved by the Invention 1 However, it is not easy to find this damaged fabric among a large number of fabrics, especially in large bag filters.
However, it would take a considerable amount of time to discover thousands of particles from among the cloth.
一方、このｌ布の取り替え作業は、プラントの操業に影
響を与えないように短時間に行なう必要があり、効果的
な破損が布の検知方法が望まれていた。On the other hand, this work of replacing the cloth needs to be done in a short time so as not to affect the operation of the plant, and an effective method for detecting damage to the cloth has been desired.
［課題を解決するための手段］
本発明のバグフィルタ−における破損が布の検知方法は
、パルスジェット式バグフィルタ−において、バグフィ
ルタ−の出口部と煙突との間にダクトに粉ａ濃度計を配
設し、上記バグフィルタ−のが布の粉塵払い落としを行
うノズル位置と上記濃度計による計測時を対応せしめる
ようにしたことを特徴とするものである。[Means for Solving the Problems] The method of detecting cloth damage in a bag filter of the present invention is to install a powder a concentration meter in a duct between the outlet of the bag filter and the chimney in a pulse jet type bag filter. The present invention is characterized in that the nozzle position of the bag filter for removing dust from the cloth corresponds to the time of measurement by the densitometer.
［実施例１
以下、本発明の一実施例について図面を参照しながら説
明する。[Embodiment 1] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
第１図は、本発明による石炭焚ボイラープロセスの７０
−を示す、粉塵濃度計１は、送風機２の前のダクト３に
取り付けられており、その測定原理は、光ビームの透過
光量の変化により濃度を自動的に測定するものである。FIG.
A dust density meter 1, indicated by -, is attached to a duct 3 in front of a blower 2, and its measurement principle is to automatically measure the density based on changes in the amount of transmitted light beam.
本実施例でのが布破損時の粉塵濃度計１の測定データを
第２図に示す。FIG. 2 shows the measurement data of the dust concentration meter 1 when the cloth was damaged in this example.
第２図に示すごとく、一定時間ごとに濃度が上昇してい
ることが解る。このプラントでの濃度計１は、バグフィ
ルタ−４から約１０ｍ離れたダクト３の位置に取付けら
れており、この間のダクト３内の流速は２０饋／ｓｅｅ
であるために、このデータに示される粉塵濃度上昇時の
５００ ａｂｓｅｅ前に、ｐ布に付いた粉塵を払い落と
したパイプ５の部分に破損が布があることになる。As shown in Figure 2, it can be seen that the concentration increases at regular intervals. The concentration meter 1 in this plant is installed in the duct 3 about 10 m away from the bag filter 4, and the flow rate in the duct 3 during this time is 20 f/see.
Therefore, there is a breakage in the part of the pipe 5 where the dust adhering to the P cloth was brushed off before 500 absee when the dust concentration increases as shown in this data.
本実施例では、パイプに圧縮空気を送る際に使用される
ダイヤプラムの作動を制御する電磁弁位置を、動作後、
次のパイプ用の電磁弁が動作するまで記憶しておき、そ
の開に粉Ｘ！！！濃度が設定値を超えた場合、その電磁
弁位置を自動的に表示するようにしている。In this example, after operation, the solenoid valve position that controls the operation of the diaphragm used to send compressed air to the pipe is changed to
Store it in memory until the solenoid valve for the next pipe operates, and when it opens, powder X! ! ! When the concentration exceeds the set value, the solenoid valve position is automatically displayed.
この実施方法により濾布破損が発生した場合、自動的に
どのパイプのが布に発生したかが解り、この破損が布の
取り替え時は、バグフィルタ−天井マンホールを開け、
このパイプで払い落とす列の濾布のみを点検し、取り替
える。If the filter cloth is damaged by this implementation method, it will automatically know which pipe the cloth was damaged in, and if this damage occurs when the cloth is replaced, open the bag filter-ceiling manhole.
Inspect and replace only the filter cloth in the row that is brushed off by this pipe.
１つのパイプで払い落す濾布は、最大で２０本までであ
るから、この中の破損枦布を検知することは比較的容易
であり、かつ短時間に行なうことができる。Since up to 20 filter cloths can be brushed off by one pipe, it is relatively easy to detect damaged filter cloths among them, and it can be done in a short time.
また、特に大型のバグフィルタ−に於いては、数百本の
パイプを有するバグフィルタ−があり、この時は、頻繁
に払い落しが行なわれることになり、前述の実施例の方
法で破損Ｆ布を有するパイプを特定することは困難とな
る。In addition, particularly in large bag filters, there are bag filters with hundreds of pipes, and in this case, they are frequently brushed off. It becomes difficult to identify pipes with cloth.
この場合は、下記の方法により特定する。即ち、この様
な大型バグフィルタ−は通常多室構成となっている。従
って、まず各室の出ログンバを順次「閏」とする。破損
Ｉ布の発生している室の出ログンパを「閉」とした時、
濃度計の上昇は現われないことになる。In this case, identify it using the method below. That is, such a large bag filter usually has a multi-chamber configuration. Therefore, first, the output logs of each room are sequentially set as "leap". When the output of the room where the damaged cloth has occurred is set to "closed",
No increase in the densitometer will appear.
この確認により、まず破損ｒ布を有する室を特定する。Through this confirmation, first, the chamber containing the damaged fabric is identified.
次に、この室の電磁弁のみ、前述の叉施例の方法により
濃度計と連動させ、破損のが布を有するパイプを特定す
る。Next, only the solenoid valve in this chamber is linked with the densitometer using the method described in the above-mentioned embodiments, and the pipe having the damaged fabric is identified.
尚、第１図において、６は石炭焚ボイラ、７はエコノマ
イザ−１８は空気予熱器、９は煙突である。In FIG. 1, 6 is a coal-fired boiler, 7 is an economizer, 18 is an air preheater, and 9 is a chimney.
また、パルスノよット式バグフィルタ−には、第３図に
示すように、バグフィルタ−１０の上部でパイプ１１を
回転させる方式のものもある。Further, as shown in FIG. 3, some pulse knot type bag filters have a type in which a pipe 11 is rotated above the bag filter 10.
この場合は、パイプ１１は１本であり、また電磁弁も１
つであるが、本発明をこのタイプのバグフィルタ−に実
施する場合は、予め電磁弁の動作順とパイプ回忙位置を
連動させて記憶させておけばよい。In this case, there is one pipe 11 and one solenoid valve.
However, when the present invention is applied to this type of bag filter, the operating order of the solenoid valves and the pipe rotation position may be linked and stored in advance.
［発明の効果１
本発明により、破損濾布の発見が容易となり、特に、石
炭焚ボイラ用バグフィルタ−の使用に際して、その信頼
性の向上に大きく寄与する。[Effect 1 of the Invention] According to the present invention, it becomes easy to find a damaged filter cloth, and particularly, when using a bag filter for a coal-fired boiler, it greatly contributes to improving the reliability of the bag filter.
第１図は本発明方法を実施する石炭焚ボイラープロセス
の７０−図、第２図は濃度測定データを示す図、第３図
は別のバグフィルタ−を示す斜視図、第４図はバグフィ
ルタ−の−例を示す概略図、第５図はその上面図、第６
図は多室構成のバグフィルタ−を示す平面図である。
１・・・粉濃度計、２・・・送風機、３・・・ダクト、
４・・・バグフィルタ−１５・・・パイプ、６・・・石
炭焚ボイラ、７・・・エコノマイザ−，８・・・空気予
熱器、９・・煙突、１０・・・バグフィルタ−１１１・
・・パイプ。
特許出願人 〃プリウス株式会社
第６図
第４０Figure 1 is a 70-diagram diagram of a coal-fired boiler process implementing the method of the present invention, Figure 2 is a diagram showing concentration measurement data, Figure 3 is a perspective view of another bag filter, and Figure 4 is a bag filter. Schematic diagram showing an example of -, Fig. 5 is a top view thereof, Fig. 6
The figure is a plan view showing a bag filter having a multi-chamber configuration. 1...Powder concentration meter, 2...Blower, 3...Duct,
4... Bag filter - 15... Pipe, 6... Coal-fired boiler, 7... Economizer, 8... Air preheater, 9... Chimney, 10... Bag filter - 111.
··pipe. Patent applicant: Prius Corporation Figure 6, Figure 40
Claims (1)
ターの出口部と煙突との間にダクトに粉塵濃度計を配設
し、上記バグフィルターの濾布の粉塵払い落としを行う
ノズル位置と上記濃度計による計測時を対応せしめるよ
うにしたことを特徴とするバグフィルターにおける破損
濾布の検知方法。In a pulse jet bag filter, a dust concentration meter is installed in the duct between the outlet of the bag filter and the chimney, and the nozzle position for brushing off dust from the filter cloth of the bag filter and the time of measurement by the concentration meter are determined. A method for detecting damaged filter cloth in a bag filter, characterized in that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63244268A JP2709726B2 (en) | 1988-09-30 | 1988-09-30 | How to detect damage on cloth in bag filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63244268A JP2709726B2 (en) | 1988-09-30 | 1988-09-30 | How to detect damage on cloth in bag filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0293340A true JPH0293340A (en) | 1990-04-04 |
| JP2709726B2 JP2709726B2 (en) | 1998-02-04 |
Family
ID=17116222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63244268A Expired - Fee Related JP2709726B2 (en) | 1988-09-30 | 1988-09-30 | How to detect damage on cloth in bag filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2709726B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010522067A (en) * | 2007-03-23 | 2010-07-01 | ソルヴェイ アドバンスド ポリマーズ リミテッド ライアビリティ カンパニー | Coal fired flue gas filter |
| JP2011194321A (en) * | 2010-03-19 | 2011-10-06 | Chugoku Electric Power Co Inc:The | Method and device for controlling clogging of bag filter |
| CN108613910A (en) * | 2017-07-31 | 2018-10-02 | 海宁文硕科技咨询有限公司 | A kind of filter bag detection device of improvement |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101900161B1 (en) | 2016-12-13 | 2018-09-18 | 주식회사 포스코 | Dust coal leak prevention system of filter cloth |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5855023A (en) * | 1981-09-26 | 1983-04-01 | Shinwa Boeki Kk | Dust collecting method using bag filter |
| JPS61246577A (en) * | 1985-04-24 | 1986-11-01 | 株式会社大川原製作所 | Continuous fluidized-bed drier incorporating bag filter |
| JPS61183114U (en) * | 1985-05-02 | 1986-11-15 |
-
1988
- 1988-09-30 JP JP63244268A patent/JP2709726B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5855023A (en) * | 1981-09-26 | 1983-04-01 | Shinwa Boeki Kk | Dust collecting method using bag filter |
| JPS61246577A (en) * | 1985-04-24 | 1986-11-01 | 株式会社大川原製作所 | Continuous fluidized-bed drier incorporating bag filter |
| JPS61183114U (en) * | 1985-05-02 | 1986-11-15 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010522067A (en) * | 2007-03-23 | 2010-07-01 | ソルヴェイ アドバンスド ポリマーズ リミテッド ライアビリティ カンパニー | Coal fired flue gas filter |
| JP2011194321A (en) * | 2010-03-19 | 2011-10-06 | Chugoku Electric Power Co Inc:The | Method and device for controlling clogging of bag filter |
| CN108613910A (en) * | 2017-07-31 | 2018-10-02 | 海宁文硕科技咨询有限公司 | A kind of filter bag detection device of improvement |
| CN108613910B (en) * | 2017-07-31 | 2020-06-16 | 威海畅享海天新材料科技有限公司 | Improved filter bag detection device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2709726B2 (en) | 1998-02-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3360907A (en) | Apparatus for cleaning filters | |
| KR102139147B1 (en) | Filtration and dust collector monitoring system | |
| KR20080086633A (en) | Dust collector | |
| CN111318103A (en) | Filtration efficiency detection system and filter cartridge testing method | |
| CN212327730U (en) | Filtration efficiency detecting system | |
| JPH0293340A (en) | Detection of damaged filter cloth in bag filter | |
| CN207430809U (en) | A kind of online blow device of denitration CEMS sampling lines and sampling probe | |
| KR102139146B1 (en) | Filter dust collector and Control method of bag filter pulsing of filter dust collector | |
| JP2020520791A (en) | A cloth filter that emits less particulate matter | |
| US4491458A (en) | Method for detecting an overload of a fabric filter | |
| US20090205445A1 (en) | Method for selecting a filter element for a dust collector | |
| RU2652687C1 (en) | Device for controlling regeneration system of filter elements of industrial dust-gas cleaning | |
| CN108379956A (en) | A kind of dust-extraction unit | |
| Mukhopadhyay et al. | Effect of leaks on performance of a fabric filter in pulse jet cleaning assisted filtration system | |
| JPH11253727A (en) | Dust removing apparatus | |
| Wang et al. | Fabric filtration | |
| KR100509303B1 (en) | Remove dust control unit and Method for controlling remove dust in Pulse-Jet filtering dust collector | |
| JP2003001036A (en) | Pulse cleaning method for multi-chamber bag filter | |
| CN218421587U (en) | Bag-type dust collector with fire-fighting device | |
| UA78883C2 (en) | Sectional bag filter for gas treating | |
| CN109682730A (en) | Dirt pocket leak-off pocket detection method and dirt pocket leak-off pocket detection device | |
| CN211215887U (en) | Bag-type dust collector | |
| RU2033846C1 (en) | Filter for gas cleaning from ashes and dust | |
| RU2779451C1 (en) | Multilayer filter hose element for cleaning from ash particles of fuel-burning plants gases | |
| Rani et al. | The Performance of Differential Pressure (DP) and Inlet Temperature by Using Fabric Filter at Coal-Fired Power Station |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |