JPH1190263A - Dust collector - Google Patents
Dust collectorInfo
- Publication number
- JPH1190263A JPH1190263A JP25188197A JP25188197A JPH1190263A JP H1190263 A JPH1190263 A JP H1190263A JP 25188197 A JP25188197 A JP 25188197A JP 25188197 A JP25188197 A JP 25188197A JP H1190263 A JPH1190263 A JP H1190263A
- Authority
- JP
- Japan
- Prior art keywords
- dust
- bag filter
- section
- filter cloth
- dust collecting
- 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
- 239000000428 dust Substances 0.000 title claims abstract description 100
- 239000004744 fabric Substances 0.000 claims abstract description 46
- 239000003463 adsorbent Substances 0.000 claims abstract description 12
- 239000000843 powder Substances 0.000 claims abstract description 11
- 239000007921 spray Substances 0.000 claims abstract description 8
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 6
- 239000012716 precipitator Substances 0.000 claims description 7
- 239000000126 substance Substances 0.000 abstract description 8
- 238000003780 insertion Methods 0.000 abstract description 3
- 230000037431 insertion Effects 0.000 abstract description 3
- 238000004321 preservation Methods 0.000 abstract description 2
- 239000012717 electrostatic precipitator Substances 0.000 description 10
- 238000011001 backwashing Methods 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 230000005684 electric field Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 235000011116 calcium hydroxide Nutrition 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 230000002285 radioactive effect Effects 0.000 description 2
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
- Electrostatic Separation (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、発電所、セメント
工場、産業焼却炉および道路、トンネルにおける浮遊微
粒子除去用、または放射性粉塵除去用あるいは室内空気
清浄用などに使用する集塵装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust collector used for removing suspended particulates in power plants, cement plants, industrial incinerators, roads and tunnels, for removing radioactive dust, or for cleaning indoor air. is there.
【０００２】[0002]
【従来の技術】浮遊微粒子除去用、または放射性粉塵除
去用等に使用される集塵装置として広く使用されている
ものには、電気集塵機とバグフィルタとが知られてい
る。電気集塵機は、不平等電界を発生させる放電電極
（負極）と、塵埃・粉塵を付着させる集塵電極とを所定
間隔を開けて対向させて収納体内部に配置した構成であ
り、両電極に高電圧を印加して放電電極と集塵電極との
間にコロナ放電を発生させることにより、処理を目的と
する空気（ガス）中の塵埃を帯電させ、集塵電極に付着
するようにしたものである。一方、バグフィルタは、収
納体内部の空気流路に、円筒状の濾布を多数吊り下げた
状態で固定した構成であり、処理される空気又はガス中
の塵埃等を濾布の内面あるいは外面より濾過するもので
ある。2. Description of the Related Art An electric dust collector and a bag filter are widely used as dust collectors used for removing suspended particulates or radioactive dust. The electrostatic precipitator has a configuration in which a discharge electrode (negative electrode) for generating an uneven electric field and a dust collection electrode for adhering dust and dust are arranged inside the housing so as to face each other at a predetermined interval. By applying a voltage to generate corona discharge between the discharge electrode and the dust collection electrode, dust in the air (gas) to be treated is charged and adheres to the dust collection electrode. is there. On the other hand, the bag filter has a configuration in which a large number of cylindrical filter cloths are fixed in a suspended state in an air flow path inside the storage body, and dust or the like in the air or gas to be treated is removed from the inner or outer surface of the filter cloth. It is more filtered.
【０００３】また、例えば特開昭５８−１２２０５９号
広報に開示されるように、上記の電気集塵機及びバグフ
ィルタとの集塵機能を組み合わせた集塵装置が発明され
ており、このバグフィルタ型電気集塵機３１の構成を図
５に示す。バグフィルタ型電気集塵機３１は、主にバグ
フィルタを基本構成としており、処理される空気又はガ
ス中の塵埃等を除去するための集塵部３２がケーシング
３３内に配置され、該ケーシング３３は、集塵部３２が
それぞれ設けられる三個の室ａ，ｂ，ｃに区切られてお
り、空気の流通を制御することによって、順次室ａ，
ｂ，ｃの集塵部３２に付着した塵埃等を払い落とすこと
ができる。Further, as disclosed in, for example, Japanese Patent Application Laid-Open No. 58-122059, there has been invented a dust collecting apparatus combining the above-mentioned electric dust collecting apparatus and a dust collecting function with a bag filter. FIG. The bag filter type electric dust collector 31 mainly has a basic configuration of a bag filter, and a dust collecting portion 32 for removing dust or the like in air or gas to be processed is disposed in a casing 33. It is divided into three chambers a, b, and c in which the dust collecting section 32 is provided, respectively, and by controlling the flow of air, the chambers a, b are sequentially arranged.
Dust and the like attached to the dust collecting portions 32 of b and c can be removed.
【０００４】さらに、ケーシング３３の下方には集塵ガ
ス管３４が、一方その上方には、清浄ガス管３５が固定
され、集塵ガス管３４から室ａ，ｂ，ｃを通って洗浄ガ
ス管３５へと流下する空気の流路を形成し、さらに集塵
部３２で集塵される塵埃等の払い落とし用に逆圧を利用
するための逆流管３６も固定されている。また、上記の
管３４，３５，３６には、塵埃等の集塵及び払い落とし
時に空気の流通を制御するためのバルブ（図示省略）が
適所にそれぞれ設けられている。集塵部３２は、図６に
示すように、バグフィルタにおける濾布及び電気集塵機
における集塵電極として機能する多数の円筒状の導電性
濾布３７と、該導電性濾布３７の中心部に固定される放
電極３８とで構成されており、導電性濾布３７は、例え
ばステンレス繊維等で形成されている。Further, a dust collecting gas pipe 34 is fixed below the casing 33, and a cleaning gas pipe 35 is fixed above the casing 33. The cleaning gas pipe 34 passes from the dust collecting gas pipe 34 through the chambers a, b and c. A flow path for the air flowing down to 35 is formed, and a backflow pipe 36 for using a back pressure for removing dust and the like collected in the dust collecting section 32 is also fixed. The pipes 34, 35, 36 are provided with valves (not shown) for controlling the flow of air at the time of dust collection and dusting-off, respectively, at appropriate locations. As shown in FIG. 6, the dust collecting unit 32 includes a plurality of cylindrical conductive filter cloths 37 functioning as a filter cloth in a bag filter and dust collecting electrodes in an electric dust collector, and a central part of the conductive filter cloth 37. The conductive filter cloth 37 is made of, for example, stainless steel fiber.
【０００５】このような構成のバグフィルタ型電気集塵
装置３１においては、処理される空気又はガスの条件
（例えば、温度、油分及び水分等）に応じて、バグフィ
ルタ機能又は電気集塵機能の何れによって集塵するかを
適宜決定し、その処理を行う。[0005] In the bag filter type electrostatic precipitator 31 having such a configuration, depending on the condition of the air or gas to be treated (for example, temperature, oil content and moisture, etc.), either the bag filter function or the electric precipitator function is used. It is determined as appropriate whether or not to collect dust, and the processing is performed.
【０００６】[0006]
【発明が解決しようとする課題】ところで、電気集塵機
は、その処理時に環境汚染物質（例えば、ダイオキシ
ン）等の有害物質を発生させるため、環境保全の観点よ
りバグフィルタの使用が推奨されつつある。しかしバグ
フィルタは、濾布に付着した塵埃等を除去するために空
気を逆流させて払い落として濾布を洗浄する（以下、
「逆洗」という）際に、濾布の摩耗が激しいので濾布が
破損しやすく、その耐久性に問題がある。さらに、その
破損した濾布を交換する場合には、破損していない他の
部分も老朽化しているという観点及び構造状の観点か
ら、一部分のみを交換することはできず、濾布全体を交
換しなければならないが、老朽化した濾布には塵埃等が
多く付着しているためその処理が問題となる。また、塵
埃中の微粒子は、濾布で濾過される際にその繊維の織り
目に進入して目詰りを起こすという問題を生じる。The use of a bag filter is being recommended from the viewpoint of environmental preservation in order to generate harmful substances such as environmental pollutants (for example, dioxin) during the treatment of the electric dust collector. However, in order to remove dust and the like adhering to the filter cloth, the bag filter wipes off the filter cloth by cleaning the filter cloth (hereinafter, referred to as “filter cloth”).
At the time of "backwashing"), the filter cloth is easily worn due to severe wear of the filter cloth, and there is a problem in its durability. Furthermore, when replacing the damaged filter cloth, it is not possible to replace only a part of the filter cloth from the viewpoint that the other parts that have not been damaged are also deteriorated and the structure is not sufficient. However, since a large amount of dust and the like adhere to the aged filter cloth, there is a problem in its treatment. In addition, there is a problem that the fine particles in the dust enter the weave of the fiber when being filtered by the filter cloth and cause clogging.
【０００７】また、バグフィルタは、上述のように収納
体内に濾布が吊り下げられた構成であり、処理される空
気又はガスは、この濾布の下端から上端に向かって流れ
る間に濾過される。したがって、濾布を逆洗すると、塵
埃等は下方に集まるが、再び集塵すると、その逆洗され
た塵埃等も空気又はガスの流れによって巻き上げられ、
再び濾布に付着してしまうので逆洗頻度が高くなるとい
う問題もある。Further, the bag filter has a structure in which the filter cloth is suspended in the housing as described above, and the air or gas to be treated is filtered while flowing from the lower end to the upper end of the filter cloth. You. Therefore, when the filter cloth is backwashed, dust and the like collect downward, but when the dust is collected again, the backwashed dust and the like are also wound up by the flow of air or gas,
There is also a problem that the frequency of backwashing increases because the particles adhere to the filter cloth again.
【０００８】図５に示すバグフィルタ型電気集塵機３１
は、処理する空気又はガスの種類に応じて、バグフィル
タ又は電気集塵機による処理を単に切り換えて行うもの
であるため、塵埃除去の効率は上がるものの、電気集塵
機及びバグフィルタによる集塵方法に起因する上記問題
を解決することはできなかった。A bag filter type electric dust collector 31 shown in FIG.
Is a method of simply switching the processing by a bag filter or an electric dust collector according to the type of air or gas to be processed, so that the efficiency of dust removal is increased, but the dust collection method is caused by the electric dust collector and the bag filter. The above problem could not be solved.
【０００９】そこで本発明は上記問題を解決するため
に、環境保全に対処しつつ、耐久性に優れた集塵装置を
提供することを目的とする。Accordingly, an object of the present invention is to provide a dust collector which is excellent in durability while addressing environmental conservation in order to solve the above-mentioned problems.
【００１０】[0010]
【課題を解決するための手段】本発明は上記目的を達成
するために、請求項１記載の発明では、処理される空気
の上流側に、集塵極板及び放電極板からなる電気集塵部
を、空気流路に直交する向きに設け、前記電気集塵部の
下流側に複数の円筒状の導電性濾布を固定してなるバグ
フィルタ部を設け、前記バグフィルタ部の最前列の濾布
の前面をそれぞれ覆う整流部材を設け、前記電気集塵部
及び前記バグフィルタ部の間に粉末吸着剤の噴霧口を設
けたことを特徴とする。In order to achieve the above object, according to the present invention, there is provided an electric dust collecting apparatus comprising a dust collecting electrode plate and a discharge electrode plate on an upstream side of air to be treated. Part, provided in a direction orthogonal to the air flow path, provided a bag filter section in which a plurality of cylindrical conductive filter cloths are fixed on the downstream side of the electrostatic precipitator, the front row of the bag filter section A rectifying member that covers the front surface of the filter cloth is provided, and a spray port of the powder adsorbent is provided between the electric dust collector and the bag filter.
【００１１】請求項２記載の発明では、前記整流部材
は、断面形状ほぼ山形であり、その開口部分が前記濾布
に対向する向きに固定されていることを特徴とする。[0011] The invention according to claim 2 is characterized in that the rectifying member has a substantially mountain-shaped cross section, and an opening thereof is fixed in a direction facing the filter cloth.
【００１２】[0012]
【発明の実施の形態】以下、本発明による実施例を添付
図面に基づいて説明する。図１および図２に示すよう
に、本発明の集塵装置１は、挿入口２及び排出口３を備
えるケーシング収納部４内に、電気集塵部５及びバグフ
ィルタ部６を設けた構成である。Embodiments of the present invention will be described below with reference to the accompanying drawings. As shown in FIGS. 1 and 2, the dust collecting device 1 of the present invention has a configuration in which an electric dust collecting unit 5 and a bag filter unit 6 are provided in a casing storage unit 4 having an insertion port 2 and a discharge port 3. is there.
【００１３】電気集塵部５は、挿入口２から流入する空
気又はガスが直接当たる位置に設けられ、その構成は、
二枚の集塵極板７と、該集塵極板７の間に配置される一
枚の放電極板８とを、空気又はガスの流れ方向Ａに対し
て直交する向きに配置したものである。図３に示すよう
に、集塵極板７には、空気又はガスを流通させるための
孔７ａが設けられている。一方、放電極板８は、複数の
金属製の矩形板８ｂおよび支持棒８ｃとで構成されてお
り、矩形板８ｂの両縁側には、外方に向かって所定間隔
毎に突出する刺部８ｄが形成されている。矩形板８ｂ
は、その面が、それぞれ所定間隔をあけて互いに対向
し、かつ、空気又はガスの流れ方向Ａに沿う（平行）よ
うに支持棒８ｃによって固定される。この二枚の集塵極
板７間の幅Ｗは 500mm程度である。さらに図１に示すよ
うに、放電極板８には、電気のON-OFFの切換部を有する
碍子室９を介して高圧電源１０に接続されており、碍子
室９には、碍子室９内の空気洗浄用のパージファン１１
及びパージヒータ１２が接続されている。The electric precipitator 5 is provided at a position where air or gas flowing from the insertion port 2 is directly hit.
Two dust collecting electrode plates 7 and one discharge electrode plate 8 arranged between the dust collecting electrode plates 7 are arranged in a direction orthogonal to the air or gas flow direction A. is there. As shown in FIG. 3, the dust collecting electrode plate 7 is provided with a hole 7a for flowing air or gas. On the other hand, the discharge electrode plate 8 is composed of a plurality of metal rectangular plates 8b and support rods 8c, and piercing portions 8d protruding outward at predetermined intervals on both sides of the rectangular plate 8b. Are formed. Rectangular plate 8b
Are fixed by supporting rods 8c such that their surfaces face each other at a predetermined interval and are (parallel) along the air or gas flow direction A. The width W between the two dust collecting electrode plates 7 is about 500 mm. Further, as shown in FIG. 1, the discharge electrode plate 8 is connected to a high-voltage power supply 10 via an insulator chamber 9 having an ON / OFF switching section for electricity. Purge fan 11 for air cleaning
And a purge heater 12 are connected.
【００１４】一方、バグフィルタ部６は、電気集塵部５
の下流側に設けられており、従来のバグフィルタの構成
と同様に、多数の円筒状の濾布１３が吊り下げられた構
成である。濾布１３は導電性を良くするために、カーボ
ン繊維又は銅線等を織り込んだ布で形成されて接地され
ている。さらに、該濾布１３の上方には、濾布１３によ
って濾過された塵埃等を逆洗するために、供給口Ｂから
供給される圧縮空気を各濾布１３に流入させるためのベ
ント管１４と、圧縮空気を噴出させるためのノズル１５
と、ベント管１４及びノズル１５の間に接続される電磁
弁１６とが設けられている。On the other hand, the bag filter unit 6 is
, And a configuration in which a large number of cylindrical filter cloths 13 are suspended, similarly to the configuration of a conventional bag filter. The filter cloth 13 is formed of cloth woven with carbon fiber or copper wire or the like and is grounded to improve conductivity. Further, above the filter cloth 13, there is provided a vent pipe 14 for flowing compressed air supplied from a supply port B into each filter cloth 13 for backwashing dust and the like filtered by the filter cloth 13. , Nozzle 15 for jetting compressed air
And a solenoid valve 16 connected between the vent pipe 14 and the nozzle 15.
【００１５】バグフィルタ部６との間には、断面形状ほ
ぼ山形の整流板１７（図４参照）が、最前列の各濾布１
３の電気集塵部５の対向面を覆うように配置されてい
る。さらに整流板１７と電気集塵部５との間には、図１
に示す噴霧口１８が設けられており、供給口Ｃから供給
された粉末吸着剤（例えば、消石灰及び活性炭）を噴霧
口１８から放出し、処理される空気又はガスに混合す
る。その他、ケーシング４には、逆洗により払い落とし
た塵埃等をケーシング４の外部へ排出するための排出装
置１９が設けられている。A rectifying plate 17 (see FIG. 4) having a substantially mountain-shaped cross section is provided between the bag filter section 6 and each of the filter cloths 1 in the front row.
3 are arranged so as to cover the opposing surface of the electrostatic precipitator 5. Further, between the current plate 17 and the electric precipitator 5, FIG.
Is provided, and the powder adsorbent (eg, slaked lime and activated carbon) supplied from the supply port C is discharged from the spray port 18 and mixed with the air or gas to be treated. In addition, the casing 4 is provided with a discharge device 19 for discharging dust and the like removed by the backwash to the outside of the casing 4.
【００１６】次に、上述した構成の本発明の集塵装置１
の作動を説明する。処理される空気又はガスが挿入口２
からケーシング４に進入し、最初に電気集塵部５に流入
する。電気集塵部５では、放電極板８に高電圧を印加す
ることにより刺部８ｄの先端からコロナ放電が発生し、
これにより極板８，７間の空気中に不平等電界が発生し
て塵埃等が帯電するので、この塵埃等が集塵極板７の電
界強度の強い部分に吸着する。この電気集塵部５を通過
中に、空気又はガス中の粉塵の８０％から９０％が集塵
される。このとき塵埃等が帯電されることから、微粒子
同士は吸着し合って凝集される。Next, the dust collecting apparatus 1 of the present invention having the above-described configuration will be described.
The operation of will be described. The air or gas to be treated is
From the casing 4, and firstly flows into the electric precipitator 5. In the electrostatic precipitator 5, a corona discharge is generated from the tip of the piercing portion 8d by applying a high voltage to the discharge electrode plate 8,
As a result, an uneven electric field is generated in the air between the electrode plates 8 and 7, and dust and the like are charged, and the dust and the like are attracted to the portion of the dust collection electrode plate 7 where the electric field intensity is strong. While passing through the electric dust collecting section 5, 80% to 90% of dust in air or gas is collected. At this time, since the dust and the like are charged, the fine particles are adsorbed and aggregated.
【００１７】さらに、電気集塵部５を通過後、噴霧口１
８から噴霧される粉末吸着剤（例えば、消石灰及び活性
炭）の粒子が空気又はガスに混合される。粉末吸着剤
は、空気又はガス中の有害物質と吸着する。その後、空
気又はガスは、バグフィルタ部６へ流下する。このバグ
フィルタ部６に進入する際に、空気又はガスは、バグフ
ィルタ部６前面に設けられた整流板１７（図４参照）に
よって整流されるので、上流側に配置される濾布１３だ
けでなく下流側へも流下して濾布１３全体に渡って拡散
し、濾布１３の外面及び内面で塵埃等が濾過される。さ
らに、整流板１７を設けることによって、最前列の濾布
１３に空気又はガスが直接当たらないようにしているの
で、その部分の摩耗及び負荷の偏りを防止する。このと
き、電気集塵部５で帯電された塵埃等は凝集されている
ので、その径は比較的大きいため、濾布１３の繊維の深
くまで進入しづらくなり目詰りを防止する。さらに空気
又はガスには、上述のように粉末吸着剤の粒子が混合さ
れているので、有害物質を濾過し、さらに濾布１３にお
いて粉末吸着剤の密度が高くなるので有害物質が吸着す
るため除去効率が向上する。After passing through the electrostatic precipitator 5, the spray port 1
Particles of powder adsorbent (eg, slaked lime and activated carbon) sprayed from 8 are mixed with air or gas. Powder adsorbents adsorb harmful substances in air or gas. Thereafter, the air or gas flows down to the bag filter unit 6. When entering the bag filter section 6, the air or gas is rectified by the rectifying plate 17 (see FIG. 4) provided on the front surface of the bag filter section 6, so that only the filter cloth 13 arranged on the upstream side is used. Instead, it also flows downstream and diffuses throughout the filter cloth 13, and dust and the like are filtered on the outer and inner surfaces of the filter cloth 13. Further, the provision of the rectifying plate 17 prevents air or gas from directly hitting the filter cloth 13 in the forefront row, thereby preventing abrasion of the portion and uneven load. At this time, since the dust and the like charged in the electrostatic precipitator 5 are agglomerated, the diameter thereof is relatively large, so that it is difficult for the fibers of the filter cloth 13 to penetrate deeply and clogging is prevented. Further, since the particles of the powder adsorbent are mixed with the air or gas as described above, the harmful substances are filtered, and the density of the powder adsorbent increases in the filter cloth 13 so that the harmful substances are adsorbed and removed. Efficiency is improved.
【００１８】濾布１３に付着した塵埃等を逆洗する場合
には、電磁弁１６を開いてノズル１５から圧縮空気を噴
射すると、その空気圧によって濾布１３上の塵埃等が落
下して排出装置によってケーシング４の外部へ排出され
処理される。濾布１３は接地されているので、電気集塵
部５を通過、又は、摩擦により塵埃等が帯電されていて
も逆洗により濾布１３から払い落とすことができる。When back-washing dust and the like adhering to the filter cloth 13, the solenoid valve 16 is opened and compressed air is injected from the nozzle 15. Is discharged to the outside of the casing 4 and processed. Since the filter cloth 13 is grounded, it can be removed from the filter cloth 13 by backwashing even if the dust or the like passes through the electric dust collection unit 5 or is charged by friction.
【００１９】[0019]
【発明の効果】請求項１の発明では、処理される空気の
上流側に電気集塵部を空気流路に直交する向きに設けた
ので、その幅が小さくコンパクトになるため、従来のバ
グフィルタより僅かに大きくなる程度の大きさで電気集
塵部とバグフィルタ部を備える集塵装置を構成すること
ができる。さらに、処理される空気又はガス中の集塵
は、電気集塵及びバグフィルタによる集塵の二段階で行
うので集塵除去率を高くすることができ、かつ、予め電
気集塵によって塵埃等の８０％ないし９０％を除去する
ため、バグフィルタのみを使用する場合と比較すると、
逆洗頻度が１／５ないし１／１０程度になり濾布の損耗
を防止することができる。また、電気集塵部を通過中に
帯電された塵埃等は凝集され、その径は比較的大きくな
るので、バグフィルタ部で濾過される際には、濾布の繊
維深くまで進入しづらくなるので目詰りを防止すること
ができ、したがって逆洗頻度も少なくなる。そして、空
気又はガスは、バグフィルタ部の上流側の側面全体から
バグフィルタ部へ進入する構成としたので、逆洗された
塵埃等が巻き上げられることにより再度濾布に付着させ
ること抑止するので逆洗頻度を少なくすることができ
る。According to the first aspect of the present invention, since the electrostatic precipitator is provided on the upstream side of the air to be treated in a direction orthogonal to the air flow path, the width thereof is small and compact. It is possible to configure a dust collector including the electric dust collector and the bag filter with a size slightly larger than the dust collector. Furthermore, dust collection in the air or gas to be treated is performed in two stages, that is, electric dust collection and dust collection by a bag filter, so that the dust collection removal rate can be increased. Compared to using only a bag filter to remove 80% to 90%,
The frequency of backwashing is reduced to about 1/5 to 1/10, and the wear of the filter cloth can be prevented. Also, dust and the like charged while passing through the electrostatic precipitator are agglomerated, and their diameters are relatively large. Clogging can be prevented and therefore the frequency of backwashing is reduced. Since air or gas enters the bag filter section from the entire side surface on the upstream side of the bag filter section, the backwashed dust and the like are rolled up to prevent the dust and the like from adhering to the filter cloth again. Washing frequency can be reduced.
【００２０】さらに、バグフィルタ部の最前列の濾布の
前面をそれぞれ覆う整流部材を設けているので、空気又
はガスはバグフィルタ部全体に広がり、バグフィルタ部
全体で均一に濾過することができ、また、空気又はガス
が濾布に直接当たらないので摩耗及び負荷の偏りを防止
することができる。また電気集塵を終了した後に粉末吸
着剤を噴霧する構成であるから、粉末吸着剤によって有
害物質を吸着し、バグフィルタ部で濾過されることによ
り有害物質を除去することができ、さらに、粉末吸着剤
がバグフィルタ部へ流下し濾布上に付着してその密度が
高くなることにより、濾布上においても有害物質を吸着
することができるので除去効率がさらによくなる。Further, since the rectifying members are provided to cover the front surfaces of the filter cloths in the front row of the bag filter section, the air or gas spreads over the entire bag filter section, so that the entire bag filter section can be uniformly filtered. Also, since air or gas does not directly hit the filter cloth, wear and uneven load can be prevented. In addition, since the configuration is such that the powder adsorbent is sprayed after the electrostatic precipitating is completed, the harmful substances are adsorbed by the powder adsorbent, and the harmful substances can be removed by being filtered by the bag filter unit. Since the adsorbent flows down to the bag filter portion and adheres to the filter cloth to increase its density, harmful substances can be adsorbed even on the filter cloth, so that the removal efficiency is further improved.
【００２１】請求項２に記載の発明では、断面形状ほぼ
山形であり、その開口部分を濾布に対向する向きに固定
したので、整流効果が高くなり、バグフィルタ部全体で
塵埃等を濾過することができる。その他、請求項１と同
様の効果を有する。According to the second aspect of the present invention, since the cross-sectional shape is substantially mountain-shaped, and the opening is fixed in the direction facing the filter cloth, the rectifying effect is enhanced, and dust and the like are filtered by the entire bag filter portion. be able to. Other effects are the same as those of the first aspect.
【図１】本発明の実施の形態の一例の集塵装置を示す概
略図である。FIG. 1 is a schematic diagram illustrating a dust collector according to an example of an embodiment of the present invention.
【図２】図１に示す集塵装置の斜視図である。FIG. 2 is a perspective view of the dust collector shown in FIG.
【図３】本発明の集塵装置の電気集塵部を示す斜視図で
ある。FIG. 3 is a perspective view showing an electric dust collector of the dust collector of the present invention.
【図４】図１に示す集塵装置の概略構成を示す上面図で
ある。FIG. 4 is a top view showing a schematic configuration of the dust collecting apparatus shown in FIG.
【図５】従来のバグフィルタ型電気集塵装置の構成を示
す概略図である。FIG. 5 is a schematic view showing a configuration of a conventional bag filter type electric dust collector.
【図６】図５に示すバグフィルタ型電気集塵装置の要部
である濾布の構造を示す断面図である。6 is a cross-sectional view showing a structure of a filter cloth which is a main part of the bag filter type electrostatic precipitator shown in FIG.
１ 集塵装置 ５ 電気集塵部 ６ バグフィルタ部 ７ 集塵極板 ８ 放電極板 １３ 濾布 １７ 整流板 １８ 噴霧口 REFERENCE SIGNS LIST 1 dust collecting device 5 electric dust collecting part 6 bag filter part 7 dust collecting electrode plate 8 discharge electrode plate 13 filter cloth 17 rectifying plate 18 spray port
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｂ０３Ｃ 3/09 ──────────────────────────────────────────────────の Continued on front page (51) Int.Cl. 6 Identification code FI B03C 3/09
Claims (2)
び放電極板からなる電気集塵部を、空気流路に直交する
向きに設け、前記電気集塵部の下流側に複数の円筒状の
導電性濾布を固定してなるバグフィルタ部を設け、前記
バグフィルタ部の最前列の濾布の前面をそれぞれ覆う整
流部材を設け、前記電気集塵部及び前記バグフィルタ部
の間に粉末吸着剤の噴霧口を設けたことを特徴とする集
塵装置。1. An electric precipitator comprising a dust collecting electrode plate and a discharge electrode plate is provided on the upstream side of air to be treated in a direction orthogonal to the air flow path, and a plurality of electric precipitators are provided downstream of the electric precipitator. A bag filter section fixed with the cylindrical conductive filter cloth of the above, a rectifying member for covering the front surface of the filter cloth in the front row of the bag filter section is provided, and the electric dust collecting section and the bag filter section are provided. A dust collector, wherein a spray port for a powder adsorbent is provided in between.
り、その開口部分が前記濾布に対向する向きに固定され
ていることを特徴とする請求項１記載の集塵装置。2. The dust collector according to claim 1, wherein the rectifying member has a substantially mountain-shaped cross section, and an opening portion thereof is fixed in a direction facing the filter cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25188197A JP3336452B2 (en) | 1997-09-17 | 1997-09-17 | Dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25188197A JP3336452B2 (en) | 1997-09-17 | 1997-09-17 | Dust collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1190263A true JPH1190263A (en) | 1999-04-06 |
| JP3336452B2 JP3336452B2 (en) | 2002-10-21 |
Family
ID=17229337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25188197A Expired - Fee Related JP3336452B2 (en) | 1997-09-17 | 1997-09-17 | Dust collector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3336452B2 (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002069777A1 (en) * | 2001-03-06 | 2002-09-12 | Polar Light Limited | Vacuum cleaner utilizing electrostatic filtration and electrostatic precipitator for use therein |
| KR100446178B1 (en) * | 2001-11-21 | 2004-08-30 | 주식회사 지앤씨 | Die-hume package system equipped with difussing apparatus of absorbent |
| JP2005125234A (en) * | 2003-10-23 | 2005-05-19 | Sumitomo Osaka Cement Co Ltd | Dust collecting apparatus and dust collecting method of cement production facility |
| WO2007073020A1 (en) * | 2005-12-22 | 2007-06-28 | Royal Industrial Tech Corp. | Electrostatic precipitator using induction voltage |
| JP2010240571A (en) * | 2009-04-06 | 2010-10-28 | Kuraray Co Ltd | Filter unit and gas cleaning system |
| KR101184084B1 (en) * | 2012-05-03 | 2012-09-18 | 부경대학교 산학협력단 | Air cleaner apparatus for construction like tunnel |
| CN102716619A (en) * | 2012-06-12 | 2012-10-10 | 江苏泰清环保科技有限公司 | Dust collector with air equalizing plate |
| CN103252152A (en) * | 2013-05-30 | 2013-08-21 | 华南理工大学 | Horizontal type electrostatic fabric filter |
| CN104307298A (en) * | 2014-11-11 | 2015-01-28 | 中国科学院过程工程研究所 | Transverse collecting plate deflector type electric bag composite fine particle efficient catcher and catching method |
| CN104437868A (en) * | 2014-11-11 | 2015-03-25 | 中国科学院过程工程研究所 | Transverse pole plate circling type wet electrostatic precipitator and wet electrostatic precipitation method |
| CN104646181A (en) * | 2015-02-06 | 2015-05-27 | 浙江天洁环境科技股份有限公司 | Electric dust remover with comb-shaped plate capable of blocking and guiding flow |
| JP2015160158A (en) * | 2014-02-26 | 2015-09-07 | 三菱重工メカトロシステムズ株式会社 | Dust collector operation method and dust collector |
| CN110314478A (en) * | 2019-07-22 | 2019-10-11 | 福建龙净环保股份有限公司 | A kind of electric-bag complex dust collector with multiple filter bag dedusting areas |
| CN112870904A (en) * | 2021-03-30 | 2021-06-01 | 东莞汇乐环保股份有限公司 | Powder spraying and dust removing integrated machine |
-
1997
- 1997-09-17 JP JP25188197A patent/JP3336452B2/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002069777A1 (en) * | 2001-03-06 | 2002-09-12 | Polar Light Limited | Vacuum cleaner utilizing electrostatic filtration and electrostatic precipitator for use therein |
| KR100446178B1 (en) * | 2001-11-21 | 2004-08-30 | 주식회사 지앤씨 | Die-hume package system equipped with difussing apparatus of absorbent |
| JP2005125234A (en) * | 2003-10-23 | 2005-05-19 | Sumitomo Osaka Cement Co Ltd | Dust collecting apparatus and dust collecting method of cement production facility |
| WO2007073020A1 (en) * | 2005-12-22 | 2007-06-28 | Royal Industrial Tech Corp. | Electrostatic precipitator using induction voltage |
| JP2010240571A (en) * | 2009-04-06 | 2010-10-28 | Kuraray Co Ltd | Filter unit and gas cleaning system |
| KR101184084B1 (en) * | 2012-05-03 | 2012-09-18 | 부경대학교 산학협력단 | Air cleaner apparatus for construction like tunnel |
| CN102716619A (en) * | 2012-06-12 | 2012-10-10 | 江苏泰清环保科技有限公司 | Dust collector with air equalizing plate |
| CN103252152A (en) * | 2013-05-30 | 2013-08-21 | 华南理工大学 | Horizontal type electrostatic fabric filter |
| JP2015160158A (en) * | 2014-02-26 | 2015-09-07 | 三菱重工メカトロシステムズ株式会社 | Dust collector operation method and dust collector |
| CN104307298A (en) * | 2014-11-11 | 2015-01-28 | 中国科学院过程工程研究所 | Transverse collecting plate deflector type electric bag composite fine particle efficient catcher and catching method |
| CN104437868A (en) * | 2014-11-11 | 2015-03-25 | 中国科学院过程工程研究所 | Transverse pole plate circling type wet electrostatic precipitator and wet electrostatic precipitation method |
| CN104646181A (en) * | 2015-02-06 | 2015-05-27 | 浙江天洁环境科技股份有限公司 | Electric dust remover with comb-shaped plate capable of blocking and guiding flow |
| CN110314478A (en) * | 2019-07-22 | 2019-10-11 | 福建龙净环保股份有限公司 | A kind of electric-bag complex dust collector with multiple filter bag dedusting areas |
| CN112870904A (en) * | 2021-03-30 | 2021-06-01 | 东莞汇乐环保股份有限公司 | Powder spraying and dust removing integrated machine |
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|---|---|
| JP3336452B2 (en) | 2002-10-21 |
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| LAPS | Cancellation because of no payment of annual fees |