JP3310810B2 - Backwashing device for dust filter ceramic filter element - Google Patents
Backwashing device for dust filter ceramic filter elementInfo
- Publication number
- JP3310810B2 JP3310810B2 JP10737295A JP10737295A JP3310810B2 JP 3310810 B2 JP3310810 B2 JP 3310810B2 JP 10737295 A JP10737295 A JP 10737295A JP 10737295 A JP10737295 A JP 10737295A JP 3310810 B2 JP3310810 B2 JP 3310810B2
- Authority
- JP
- Japan
- Prior art keywords
- superheated steam
- filter element
- backwash
- dust
- ceramic filter
- 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
- 239000000428 dust Substances 0.000 title claims description 24
- 238000011001 backwashing Methods 0.000 title claims description 22
- 239000000919 ceramic Substances 0.000 title claims description 12
- 238000010926 purge Methods 0.000 claims description 17
- 238000005406 washing Methods 0.000 claims description 2
- 208000016791 bilateral striopallidodentate calcinosis Diseases 0.000 description 8
- 238000002485 combustion reaction Methods 0.000 description 6
- 239000003245 coal Substances 0.000 description 4
- 239000011810 insulating material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【産業上の利用分野】本発明は、加圧流動床（ＰＦＢ
Ｃ）燃焼炉等の脱塵器に適用されるセラミックフィルタ
エレメントの逆洗装置に関する。The present invention relates to a pressurized fluidized bed (PFB).
C) The present invention relates to an apparatus for backwashing a ceramic filter element applied to a dust remover such as a combustion furnace.
【０００２】[0002]
【従来の技術】例えばＰＦＢＣ燃焼炉を用いたプラント
には脱塵器が用いられるが、そのような脱塵器における
従来のフィルタエレメント逆洗装置の例を図２によって
説明する。脱塵器本体１には内部に円筒型のフィルタエ
レメント２が内蔵されている。ＰＦＢＣ燃焼炉（図省
略）から排出された高温の含塵ガス４は脱塵器本体１内
のフィルタエレメント２内面で粉塵４−１とガス４−２
に分離濾過される。2. Description of the Related Art For example, in a plant using a PFBC combustion furnace, a dust remover is used. An example of a conventional filter element backwashing device in such a dust remover will be described with reference to FIG. The dust filter body 1 has a cylindrical filter element 2 built therein. The high-temperature dust-containing gas 4 discharged from the PFBC combustion furnace (not shown) forms dust 4-1 and gas 4-2 on the inner surface of the filter element 2 in the deduster body 1.
And separated and filtered.
【０００３】粉塵を除去された高温のガス４−２は逆洗
チャンバ３部に接続された出口配管５を経て、ガスター
ビン１０へ供給される。一方、フィルタエレメント２内
面に付着した粉塵４−１は運転を続けていくと成長し
て、フィルタエレメント２内外の圧損を大きくするので
差圧計９を設けて、定期的に空気１５をフィルタエレメ
ント２外面側へ投入してフィルタエレメント２に付着成
長した粉塵４−１を逆洗除塵する。The high-temperature gas 4-2 from which dust has been removed is supplied to a gas turbine 10 through an outlet pipe 5 connected to the backwash chamber 3. On the other hand, the dust 4-1 attached to the inner surface of the filter element 2 grows as the operation continues, and the pressure loss inside and outside the filter element 2 increases. The dust 4-1 that has been thrown into the outer surface and adhered and grown on the filter element 2 is backwashed and removed.
【０００４】通常、ＰＦＢＣプラントではガスタービン
１０と同軸に設置された空気コンプレッサ１１からの空
気１５は減圧弁１４で圧力制御された後、図示省略のＰ
ＦＢＣ炉の燃焼用１５−１と逆洗用１５−２に分岐され
る。逆洗用の空気１５−２の圧力は更に高める必要があ
るため、ブースタポンプ１２を逆洗ライン配管７に接続
している。Normally, in a PFBC plant, the pressure of air 15 from an air compressor 11 installed coaxially with a gas turbine 10 is controlled by a pressure reducing valve 14, and then a P
It branches into 15-1 for combustion of the FBC furnace and 15-2 for backwashing. Since the pressure of the backwash air 15-2 needs to be further increased, the booster pump 12 is connected to the backwash line piping 7.
【０００５】逆洗ライン配管７のブースタポンプ１２の
後流には、逆洗空気チャンバ１３、差圧計９と連動させ
る逆洗弁８及び逆洗ノズル６が出口配管５の分岐点に設
けられている。逆洗運転はフィルタエレメント２の差圧
が大きくなり一定の設定値に達すると逆洗弁８を０．３
〜０．５秒稼働（開ける）させ、高圧の逆洗空気１５−
２を通気させる。A backwash air chamber 13, a backwash valve 8 linked to a differential pressure gauge 9 and a backwash nozzle 6 are provided at a branch point of the outlet pipe 5 downstream of the booster pump 12 in the backwash line pipe 7. I have. In the backwash operation, when the differential pressure of the filter element 2 increases and reaches a certain set value, the backwash valve 8 is set to 0.3.
Operate (open) for ~ 0.5 seconds, and use high pressure backwash air 15-
Allow 2 to vent.
【０００６】その後、逆洗ノズル６で超高圧の空気流を
生成させ逆洗チャンバ３から逆方向の差圧を発生させて
フィルタエレメント２内面に付着した粉塵４−１を除塵
する。除塵された粉塵４−１は脱塵器本体１下部のホッ
パ部に堆積するので定期的にブローダウンライン１６
ａ，１６ｂから外部へ払い出すようになっている。Thereafter, an ultra-high pressure air flow is generated by the backwash nozzle 6 to generate a differential pressure in the reverse direction from the backwash chamber 3 to remove the dust 4-1 attached to the inner surface of the filter element 2. Since the removed dust 4-1 accumulates on the hopper at the bottom of the dust remover main body 1, the blow down line 16
a, 16b to the outside.
【０００７】[0007]
【発明が解決しようとする課題】ＰＦＢＣ燃焼炉内圧は
約１０atg で運転されるため、空気コンプレッサ１１出
口圧力、容量はそれ以上の圧力と燃焼用空気量及び逆洗
用空気量を確保する必要がある。また、逆洗用の空気１
５−２には約３０atg の圧力が不可欠な為、前記したよ
うにブースタポンプ１２を連結している。これらの空気
コンプレッサ１１、ブースタポンプ１２の駆動には相当
なエネルギが必要で全体プラントの効率にも影響を及ぼ
し、設置コストも膨大である。Since the internal pressure of the PFBC combustion furnace is operated at about 10 atg, it is necessary to ensure that the pressure and capacity at the outlet of the air compressor 11 are higher than that, and that the amount of combustion air and the amount of backwash air are secured. is there. In addition, air 1 for backwashing
Since the pressure of about 30 atg is indispensable for 5-2, the booster pump 12 is connected as described above. The driving of the air compressor 11 and the booster pump 12 requires a considerable amount of energy, which affects the efficiency of the entire plant, and the installation cost is enormous.
【０００８】また、ＰＦＢＣ炉では石炭を燃料として燃
焼させるが、石炭には炭種が多く、フィルタエレメント
２に付着する粉塵の粘性等、各種物性値が異なって、逆
洗特性（逆洗間隔、逆洗時間等）も大きく変化し、空気
コンプレッサ１１、ブースタポンプ１２の設計仕様設定
不足等も想定される。このような状況になると、ＰＦＢ
Ｃ炉の負荷１００％の運転が維持出来なくなり、低負荷
運転を余儀なくされる。In the PFBC furnace, coal is burned as fuel. However, coal has many types of coal, and various physical properties such as the viscosity of dust adhering to the filter element 2 are different. The backwash time and the like greatly change, and it is assumed that the design specifications of the air compressor 11 and the booster pump 12 are insufficiently set. In such a situation, PFB
Operation at 100% load of the C furnace cannot be maintained, and low-load operation is forced.
【０００９】本発明は、セラミックフィルタエレメント
の逆洗を低コストで効果的に行えるようにした脱塵器セ
ラミックフィルタエレメントの逆洗装置を提供すること
を課題としている。The present invention, dedusting unit cell in which the backwashing of the ceramic filter element support efficient low-cost
It is an object to provide a backwashing device for a lamic filter element.
【００１０】[0010]
【課題を解決するための手段】本発明は、脱塵器セラミ
ックフィルタエレメントの外面側に接続された加圧空気
供給ラインから加圧空気を送って前記セラミックフィル
タエレメントを逆洗するように構成した脱塵器セラミッ
クフィルタエレメントの逆洗装置における前記課題を解
決するため、過熱蒸気による逆洗機構を採用する。SUMMARY OF THE INVENTION The present invention is directed to a deduster ceramic.
A dust remover ceramic configured to send pressurized air from a pressurized air supply line connected to the outer surface side of the filter element to backwash the ceramic filter element.
In order to solve the above-mentioned problem in the backwashing device for the filter element, a backwash mechanism using superheated steam is employed.
【００１１】すなわち、本発明では、脱塵器セラミック
フィルタエレメントの外面側に過熱蒸気供給ラインを接
続すると共に前記加圧空気及び過熱蒸気の両供給ライン
にそれぞれ切替弁を設け、加圧空気及び過熱蒸気いづれ
でも逆洗可能に構成し、かつ、前記過熱蒸気供給ライン
に温度センサとパージ配管を設け、前記温度センサが所
定の過熱蒸気温度を検出するまで前記パージ配管を通し
て過熱蒸気をパージ可能に構成した逆洗装置を提供す
る。That is, in the present invention, a superheated steam supply line is connected to the outer surface side of the dust filter ceramic filter element, and a switching valve is provided in each of the pressurized air and superheated steam supply lines. Backwashing is possible for both compressed air and superheated steam , and the superheated steam supply line
A temperature sensor and a purge pipe are installed in the
Through the purge pipe until a constant superheated steam temperature is detected.
To provide a backwashing apparatus configured to purge superheated steam .
【００１２】加圧流動床（ＰＦＢＣ）複合発電プラント
ではガスタービン、蒸気タービンにて発電を行うので、
本発明の逆洗装置で用いる過熱蒸気は容易に手に入れる
ことが出来る。In a pressurized fluidized bed (PFBC) combined cycle power plant, power is generated by a gas turbine and a steam turbine.
The superheated steam used in the backwash apparatus of the present invention can be easily obtained.
【００１３】[0013]
【作用】本発明による脱塵器フィルタエレメントの逆洗
装置では脱塵器フィルタエレメントの外面側に加圧空気
供給ラインに加え、過熱蒸気ラインを配設することで、
ＰＦＢＣ炉起動時から低負荷運転まではブースタポンプ
による空気逆洗を行い、中，高負荷時になるに従い過熱
蒸気供給ラインから供給される過熱蒸気による逆洗へ移
行することができる。In the backwashing device for a filter element of the present invention, a superheated steam line is provided on the outer surface side of the filter element in addition to a pressurized air supply line.
From the start of the PFBC furnace to the low-load operation, the air is backwashed by the booster pump. As the load becomes medium or high, the process can be shifted to the backwash with the superheated steam supplied from the superheated steam supply line.
【００１４】フィルタエレメント部の温度は８００℃以
上の高温であるため、フィルタエレメントの材質はセラ
ミック材が用いられる。従って、フィルタエレメントに
湿り蒸気（水滴含む）が直触すると衝撃で破損するが、
本発明では、過熱蒸気供給ラインに温度センサとパージ
配管を設け、前記温度センサが所定の過熱蒸気温度を検
出するまで前記パージ配管を通して過熱蒸気をパージし
て、逆洗には所定温度以上の過熱蒸気を用いるのでフィ
ルタエレメント直触部も破損の恐れはない。Since the temperature of the filter element is a high temperature of 800 ° C. or more, a ceramic material is used as the material of the filter element. Therefore, when wet steam (including water droplets) directly touches the filter element, it will be damaged by impact,
In the present invention, a temperature sensor and a purge
A pipe is provided, and the temperature sensor detects a predetermined superheated steam temperature.
Purge the superheated steam through the purge line until
Since the superheated steam having a temperature equal to or higher than the predetermined temperature is used for the backwashing, there is no possibility that the portion directly in contact with the filter element is damaged.
【００１５】[0015]
【実施例】以下、本発明による脱塵器フィルタエレメン
トの逆洗装置について図１に示した実施例に基づいて具
体的に説明する。なお、以下の実施例において、図２に
示した従来の装置と同じ構成の部分には説明を簡単にす
るため同じ符号を付してある。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A backwashing device for a filter element for a dust remover according to the present invention will be specifically described below with reference to the embodiment shown in FIG. In the following embodiments, the same components as those of the conventional apparatus shown in FIG. 2 are denoted by the same reference numerals for the sake of simplicity.
【００１６】図１に示した逆洗装置では、逆洗弁８と逆
洗空気チャンバ１３の間の逆洗ライン配管７に過熱蒸気
配管ライン１９、逆洗弁８の直前にパージ配管２３を配
設する。逆洗ライン配管７には逆洗空気切替弁２０、過
熱蒸気配管ライン１９には過熱蒸気切替弁２１及びパー
ジ配管２３にはパージ弁２５が設けてある。In the backwash apparatus shown in FIG. 1 , a superheated steam pipe line 19 is provided in the backwash line pipe 7 between the backwash valve 8 and the backwash air chamber 13, and a purge pipe 23 is provided immediately before the backwash valve 8. Set up. The backwash line piping 7 is provided with a backwash air switching valve 20, the superheated steam piping line 19 is provided with a superheated steam switching valve 21, and the purge pipe 23 is provided with a purge valve 25.
【００１７】過熱蒸気配管ライン１９には過熱蒸気チャ
ンバ１８、過熱蒸気減圧弁１７、スチームトラップ弁２
６、また、過熱蒸気バイパス管２２、圧力制御弁２４等
が取付けられている。過熱蒸気配管ライン１９、及び逆
洗ライン配管７の逆洗弁８から、逆洗ノズル６取付部ま
では図に破線で示すように断熱材２７が施されている。
パージ配管２３取付部前及び過熱蒸気バイパス管２２取
付部前に夫々温度センサＴ2 ，Ｔ1 が取付けてある。A superheated steam chamber 18, a superheated steam pressure reducing valve 17, a steam trap valve 2
6, and a superheated steam bypass pipe 22, a pressure control valve 24, and the like are attached. A heat insulating material 27 is provided from the superheated steam pipe line 19 and the backwash valve 8 of the backwash line pipe 7 to the mounting portion of the backwash nozzle 6 as shown by a broken line in the figure.
Temperature sensors T 2 and T 1 are mounted in front of the attachment part of the purge pipe 23 and in front of the attachment part of the superheated steam bypass pipe 22, respectively.
【００１８】以上の構成をもつ図１に示した逆洗装置に
おける過熱蒸気２８による逆洗運転を説明すると、ＰＦ
ＢＣ起動から低負荷運転までは、従来同様の経緯である
ため逆洗空気切替弁２０を開、過熱蒸気切替弁２１を
閉、パージ弁２５を閉にしてフィルタエレメント２の差
圧に応じて逆洗弁８を作動させて加圧空気１５−２によ
る逆洗を行う。The backwashing operation by the superheated steam 28 in the backwashing apparatus shown in FIG. 1 having the above configuration will be described.
Since the process from the start of the BC to the low-load operation is the same as the conventional process, the backwash air switching valve 20 is opened, the superheated steam switching valve 21 is closed, the purge valve 25 is closed, and the reverse flow is performed according to the differential pressure of the filter element 2. The backwashing with the pressurized air 15-2 is performed by operating the washing valve 8.
【００１９】この間に過熱蒸気２８切替えの準備をす
る。すなわち、ＰＦＢＣ炉等から抽出した過熱蒸気２８
を過熱蒸気減圧弁１７で圧力調整し、過熱蒸気チャンバ
１８、過熱蒸気配管ライン１９から過熱蒸気バイパス管
２２を経て外部へ放出する。このとき、これらの系内圧
力は圧力制御弁２４で過熱蒸気チャンバ１８の圧力と連
動して逆洗圧に設定する。During this time, preparation for switching the superheated steam 28 is made. That is, the superheated steam 28 extracted from the PFBC furnace or the like
Is regulated by the superheated steam pressure reducing valve 17, and is discharged from the superheated steam chamber 18 and the superheated steam piping line 19 to the outside via the superheated steam bypass pipe 22. At this time, these system pressures are set to the backwash pressure by the pressure control valve 24 in conjunction with the pressure of the superheated steam chamber 18.
【００２０】また、この系内の温度が所定の温度以上を
維持しているか否かを監視しておく必要がある。これは
非常に重要でフィルタエレメントへ湿り蒸気（水滴）を
直触させない為であり、温度設定には逆洗ノズルでの断
熱膨張による温度降下も加算する必要がある。Further, it is necessary to monitor whether the temperature in the system is maintained at a predetermined temperature or higher. This is very important because it does not allow the wet steam (water droplets) to come into direct contact with the filter element, and it is necessary to add the temperature drop due to adiabatic expansion at the backwash nozzle to the temperature setting.
【００２１】過熱蒸気２８切替え準備が終了し過熱蒸気
で逆洗する場合は空気切替弁２０を閉、過熱蒸気切替弁
２１を開としパージ弁２５を開け、温度センサＴ2 を、
監視して所定の温度以上を確認後、パージ弁２５を閉と
する。なお、これらの操作は逆洗弁８が閉の状態で実施
する。過熱蒸気逆洗運転に入ったらブースタポンプ１２
を停止する。When the preparation for switching the superheated steam 28 is completed and the backwashing is performed with the superheated steam, the air switching valve 20 is closed, the superheated steam switching valve 21 is opened, the purge valve 25 is opened, and the temperature sensor T 2 is turned on.
After monitoring and confirming that the temperature is equal to or higher than a predetermined temperature, the purge valve 25 is closed. These operations are performed with the backwash valve 8 closed. When the superheated steam backwash operation starts, booster pump 12
To stop.
【００２２】これらの運転操作では特に系内の温度管理
が重要であり、同じ圧力の飽和蒸気温度と過熱蒸気温度
の熱量差は非常に小さいため、図示した断熱材２７は厚
みを考慮して放熱を防ぐ慎重な施工が必要で、出来れば
これらの部分の配管にはテープヒータ等を巻きその上に
断熱材２７を施工する方が望ましい。In these operation operations, it is particularly important to control the temperature in the system, and since the difference in the calorific value between the saturated steam temperature and the superheated steam temperature at the same pressure is very small, the heat insulating material 27 shown in FIG. Careful construction is required to prevent this, and if possible, it is desirable to wind a tape heater or the like around the pipes of these parts and to construct the heat insulating material 27 thereon.
【００２３】[0023]
【発明の効果】以上説明したように、本発明によれば、
脱塵器フィルタエレメントの外面側に設けられた過熱蒸
気供給ラインからの過熱蒸気を用いた逆洗により、加圧
空気を逆洗に用いる場合の空気コンプレッサ、ブースタ
ポンプの必要エネルギ（ランニングコスト）を削減で
き、プラント効率を向上させることができる。As described above, according to the present invention,
Backwashing using superheated steam from the superheated steam supply line provided on the outer surface side of the deduster filter element reduces the required energy (running cost) of the air compressor and booster pump when pressurized air is used for backwashing. Reduction and plant efficiency can be improved.
【００２４】また、本発明によれば、空気コンプレッ
サ、ブースタポンプの容量削減によりコスト低下（設備
コスト低下）が図れる上、炭種の物性値に拘わらず設計
仕様が簡単に決定できる。Further, according to the present invention, cost reduction (reduction of equipment cost) can be achieved by reducing the capacity of the air compressor and the booster pump, and design specifications can be easily determined regardless of the physical properties of the coal type.
【図１】本発明の一実施例による脱塵器フィルタエレメ
ントの逆洗装置の構成を示すシステム系統図。FIG. 1 is a system diagram showing the configuration of a backwashing device for a dust filter element according to an embodiment of the present invention.
【図２】従来の脱塵器フィルタエレメントの逆洗装置の
構成を示すシステム系統図。FIG. 2 is a system diagram showing a configuration of a conventional backwashing device for a dust filter element.
１ 脱塵器本体 ２ フィルタエレメント ３ 逆洗チャンバ ４ 含塵ガス ４−１ 粉塵 ４−２ ガス ５ 出口配管 ６ 逆洗ノズル ７ 逆洗ライン配管 ８ 逆洗弁 ９ 差圧計 １０ ガスタービン １１ 空気コンプレッサ １２ ブースタポンプ １３ 逆洗空気チャンバ １４ 減圧弁 １５ 空気 １６ａ，１６ｂ ブローダウンライン １７ 過熱蒸気減圧弁 １８ 過熱蒸気チャンバ １９ 過熱蒸気配管ライン ２０ 空気切替弁 ２１ 過熱蒸気切替弁 ２２ 過熱蒸気バイパス管 ２３ パージ配管 ２４ 圧力制御弁 ２５ パージ弁 ２６ スチームトラップ弁 ２７ 断熱材 ２８ 過熱蒸気 DESCRIPTION OF SYMBOLS 1 Deduster main body 2 Filter element 3 Backwash chamber 4 Dust-containing gas 4-1 Dust 4-2 Gas 5 Outlet piping 6 Backwash nozzle 7 Backwash line piping 8 Backwash valve 9 Differential pressure gauge 10 Gas turbine 11 Air compressor 12 Booster pump 13 Backwash air chamber 14 Pressure reducing valve 15 Air 16a, 16b Blow down line 17 Superheated steam pressure reducing valve 18 Superheated steam chamber 19 Superheated steam piping line 20 Air switching valve 21 Superheated steam switching valve 22 Superheated steam bypass pipe 23 Purge pipe 24 Pressure control valve 25 Purge valve 26 Steam trap valve 27 Insulation material 28 Superheated steam
───────────────────────────────────────────────────── フロントページの続き (72)発明者 浦方 久隆 長崎市飽の浦町１番１号 三菱重工業株 式会社長崎造船所内 (56)参考文献 特開 平６−304426（ＪＰ，Ａ) 特開 昭62−160119（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B01D 46/00 - 46/54 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Hisataka Urata 1-1, Akunouramachi, Nagasaki City Inside Nagasaki Shipyard, Mitsubishi Heavy Industries, Ltd. (56) References JP-A-6-304426 (JP, A) JP-A Sho 62-160119 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) B01D 46/00-46/54
Claims (1)
外面側に接続された加圧空気供給ラインから加圧空気を
送って前記セラミックフィルタエレメントを逆洗するよ
うに構成した脱塵器セラミックフィルタエレメントの逆
洗装置において、前記脱塵器セラミックフィルタエレメ
ントの外面側に過熱蒸気供給ラインを接続すると共に前
記両ラインにそれぞれ切替弁を設け、加圧空気及び過熱
蒸気いづれでも逆洗可能に構成し、かつ、前記過熱蒸気
供給ラインに温度センサとパージ配管を設け、前記温度
センサが所定の過熱蒸気温度を検出するまで前記パージ
配管を通して過熱蒸気をパージ可能に構成したことを特
徴とする脱塵器セラミックフィルタエレメントの逆洗装
置。1. A reverse de-dust ceramic filter elements configured to backwash said ceramic filter element sends pressurized air from the dust removing device ceramic filter element outer surface connected to a pressurized air supply line In the washing device, a superheated steam supply line is connected to the outer surface side of the deduster ceramic filter element, and a switching valve is provided for each of the two lines, so that both the pressurized air and the superheated steam can be backwashed , and The superheated steam
Provide a temperature sensor and a purge pipe in the supply line, and
Purging until the sensor detects a predetermined superheated steam temperature.
A backwashing device for a ceramic filter element of a dust remover, characterized in that superheated steam can be purged through a pipe .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10737295A JP3310810B2 (en) | 1995-05-01 | 1995-05-01 | Backwashing device for dust filter ceramic filter element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10737295A JP3310810B2 (en) | 1995-05-01 | 1995-05-01 | Backwashing device for dust filter ceramic filter element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08299734A JPH08299734A (en) | 1996-11-19 |
| JP3310810B2 true JP3310810B2 (en) | 2002-08-05 |
Family
ID=14457436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10737295A Expired - Fee Related JP3310810B2 (en) | 1995-05-01 | 1995-05-01 | Backwashing device for dust filter ceramic filter element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3310810B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5087100B2 (en) * | 2010-03-26 | 2012-11-28 | ヤンマー株式会社 | Cleaning method and cleaning apparatus for particulate matter removing filter |
-
1995
- 1995-05-01 JP JP10737295A patent/JP3310810B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08299734A (en) | 1996-11-19 |
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