JPH08323237A - Filter for electrostatic filter dust collector and its manufacture - Google Patents
Filter for electrostatic filter dust collector and its manufactureInfo
- Publication number
- JPH08323237A JPH08323237A JP8871896A JP8871896A JPH08323237A JP H08323237 A JPH08323237 A JP H08323237A JP 8871896 A JP8871896 A JP 8871896A JP 8871896 A JP8871896 A JP 8871896A JP H08323237 A JPH08323237 A JP H08323237A
- Authority
- JP
- Japan
- Prior art keywords
- insulating
- filter medium
- filter
- conductive
- adhesive
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】 本発明は，粉塵を含んだ空
気，その他含塵ガスを清浄化するために使用する静電式
濾過集塵装置用フィルターとその製法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter for an electrostatic filter and dust collector used for cleaning air containing dust and other dust-containing gases and a method for producing the same.
【０００２】[0002]
【従来の技術】 従来の含塵ガスを清浄化するフィルタ
ーには，次のようなものがあった。 特公平２−６１３０２号公報第３欄１９行目から第
３１行目に記載されている静電式濾過集塵装置用フィル
ター，所謂「静電ミニプリーツ型フィルター」。 水性エマルションよりなる絶縁性接着剤を絶縁性濾
材の表裏に線状に相対して塗布し，襞折り加工（プリー
ツ加工）してから乾燥させ，襞折り形状を保持するとと
もに，濾材の折り畳み面間の間隔を保持するスペーサー
を形成するフィルター。 天然繊維よりなる糸に絶縁性接着剤を含浸塗布し，
絶縁性濾材の表裏に相対して接着させ，乾燥後，絶縁性
濾材に襞折り加工を施したとき，糸に含浸塗布した接着
剤が相対して接着し，襞折り形状を保持し，折り畳み面
間の間隔を保持するスペーサーを形成するフィルター。 特公平６−８７９９４号公報に記載されているよう
に金属線や炭素繊維などの導電性線状体を接着剤で濾材
の表裏に相対させないように接着させ，襞折り加工する
荷電式フィルター。 特公平６−８７９９７号公報に記載されているよう
に導電性粉体を接着剤に分散させたものを濾材の表裏に
相対さないように塗布させ，襞折り加工する荷電式フィ
ルター。2. Description of the Related Art Conventional filters for purifying dust-containing gas include the following. Japanese Examined Patent Publication No. 2-61302, column 3, line 19 to line 31, a filter for an electrostatic filter and dust collector, a so-called "electrostatic mini-pleat type filter". Apply an insulating adhesive consisting of an aqueous emulsion to the front and back of the insulating filter medium in a linear manner, fold it (pleat it), and then dry it to keep the fold shape and to keep the space between the folded surfaces of the filter medium. A filter that forms a spacer that keeps the space between. Insulating adhesive is applied to threads made of natural fibers,
When the insulating filter material is adhered to the front and back sides opposite to each other and dried, and then the insulating filter material is subjected to a fold process, the adhesive impregnated and applied to the yarn is adhered to the adhesive face to maintain the fold shape, and the folded surface A filter that forms spacers that maintain the spacing between them. As described in Japanese Examined Patent Publication No. 6-87994, a charge-type filter in which a conductive linear body such as a metal wire or carbon fiber is adhered with an adhesive so as not to face the front and back of a filter medium, and is folded. As described in Japanese Examined Patent Publication No. 6-87997, a charge-type filter in which conductive powder is dispersed in an adhesive is applied so as not to face the front and back of a filter medium, and is folded.
【０００３】[0003]
【発明が解決しようとする課題】 上記従来のフィルタ
ーのうち，のフィルターでは，導電性スペーサーを公
報に記載されているように濾材折り畳み面の間に入れ接
着剤で接着させるため，濾材に導電性スペーサーが直接
接触していないので，濾材に対する荷電が十分ではな
い。また，導電性スペーサーを濾材の折り畳み面間に入
れて接着剤で固定するので作業性があまり良くはない。
また特許請求の範囲に「上流側のスペーサーと下流側の
スペーサーのいずれか一方又は両方を導電性スペーサー
とする」との記載があるが，上流側及び上流側と下流側
というように上流側に必ず導電性スペーサーが設けられ
る仕様とした場合には，次のようなことが発生しやす
い。濾過・集塵を行う場合には，含塵空気から濾過され
た浮遊粒子は，濾材の上流側より付着する。この付着し
た浮遊粒子の中に導電性粒子あるいは導電性物質が含ま
れている場合は，上流側導電性スペーサー間の絶縁を無
くす。すなわち短絡状態のような作用をするため，電界
の作用下において捕集効率が低下し，結果的に静電式濾
過集塵装置用フィルターとしての効果が浮遊粒子堆積の
初期に減じてしまうという問題点があった。，のフ
ィルターは，導電性接着剤を用いていないため，濾材を
帯電させることができないので，本発明である静電式濾
過集塵装置用フィルターとはならず，本発明とは全く別
のものになる。のフィルターでは，千鳥状に導電性線
状体を濾材の表裏に相対さないように接着させるため，
襞折り加工後のフィルター体となったときの全体の強度
にも限界がある。更に，導電性線状体に剛性があるた
め，襞折り加工により断線する可能性がある。また，襞
折り加工しても導電性線状体には，接着性がないため
に，襞折り形態を維持しにくく，フィルター化するため
には，別途スペーサーが必要である。このため，フィル
ターを小型化，薄型化するには限界がある。なお，導電
性線状体を接着剤（絶縁性）で接着させるため，濾材に
導電性線状体が直接接触していないので，濾材に対する
荷電が十分ではないという問題点があった。のフィル
ターでは，千鳥状に導電性粉体を接着剤に分散したもの
を濾材の表裏に相対さないように接着させるため，襞折
り加工後のフィルター体となったときの全体の強度にも
限界がある。また，導電性粉体を接着剤に分散させたペ
ーストを塗布する場合に，接着剤が途切れる可能性があ
るとともに，襞折り加工後に接着剤が途切れることもあ
りうるという問題点があった。本発明は，のフィルタ
ーを改良するとともに，，の各フィルターにおける
問題点を解消しうる静電式濾過集塵装置用フィルターと
その製法を提供することを目的とするものである。Among the above-mentioned conventional filters, in the above-mentioned filter, since the conductive spacer is put between the folding surfaces of the filter medium and adhered by the adhesive as described in the official gazette, the filter medium is electrically conductive. Since the spacers are not in direct contact, the charge on the filter media is not sufficient. Also, since the conductive spacer is put between the folding surfaces of the filter medium and fixed with an adhesive, workability is not so good.
Further, although there is a statement in the claims that "one or both of the upstream spacer and the downstream spacer is a conductive spacer", the upstream side and the upstream side such as the upstream side and the downstream side are described. If the specifications are such that a conductive spacer is always provided, the following things are likely to occur. When filtering and collecting dust, suspended particles filtered from dust-containing air adhere from the upstream side of the filter medium. If the adhered suspended particles contain conductive particles or conductive substances, the insulation between the upstream conductive spacers is eliminated. In other words, since it acts like a short circuit, the collection efficiency is reduced under the action of an electric field, and as a result, the effect as a filter for an electrostatic filter / dust collector is reduced in the early stage of suspended particle deposition. There was a point. Since the filter of No. 1 does not use a conductive adhesive, it cannot charge the filter medium, so it is not the filter for the electrostatic filter dust collector of the present invention and is completely different from the present invention. become. In the case of the filter of No. 3, since the conductive linear members are adhered in a zigzag manner so as not to face the front and back of the filter medium,
There is also a limit to the overall strength of the filter body after the folding process. Further, since the conductive linear body has rigidity, there is a possibility that the wire will be broken due to the folding process. In addition, since the conductive linear body does not have adhesiveness even if it is folded, it is difficult to maintain the folded shape, and a separate spacer is required to form a filter. Therefore, there is a limit to downsizing and thinning the filter. In addition, since the conductive linear body is adhered with an adhesive (insulating), the conductive linear body is not in direct contact with the filter medium, so that there is a problem that the filter medium is not sufficiently charged. In the case of the filter, since the conductive powder is dispersed in the adhesive in a zigzag manner so that the adhesive does not face the front and back of the filter medium, the overall strength of the filter body after folding is limited. There is. In addition, there is a problem in that when the paste in which the conductive powder is dispersed in the adhesive is applied, the adhesive may be interrupted and the adhesive may be interrupted after the folding process. An object of the present invention is to provide a filter for an electrostatic filter and dust collector, which can improve the filter of (1) and can solve the problems in each filter of (1), and a method for producing the same.
【０００４】[0004]
【課題を解決するための手段】 上記の目的を達成する
ために，本発明は， 含塵ガスを通過させその中の浮遊粒子を予備荷電す
るための荷電部と，該荷電部を通過した含塵ガス中の荷
電された浮遊粒子を電界の作用下において捕集するため
絶縁性濾材が含塵ガスの流れ方向の上流側と下流側に稜
線部分を交互に形成するように襞折りされ，かつ，上流
側と下流側の各折り畳み面間の間隔を保持するための複
数条のスペーサーが具備されてなる集塵部とからなる静
電式濾過集塵装置において，上流側のスペーサーと下流
側のスペーサーが導電性スペーサーであって，上記絶縁
性濾材の表裏の相対する位置に導電性接着剤でそれぞれ
接着され，上記導電性スペーサーの相互間に高電圧を印
加するように構成することを特徴とし， 絶縁性濾材の表裏の相対する位置に２００〜６００
０ｃｐｓの粘度を有する導電性接着剤を含浸塗布した含
浸性のある糸状体を，印加する電圧との関係により適当
な間隔をおいて接触させ，この絶縁性濾材を１００〜３
００℃，３０〜６０秒間の乾燥工程に入れて，絶縁性濾
材に接触している導電性接着剤は，絶縁性濾材に含浸接
着させ，絶縁性濾材に接触していない導電性接着剤は，
接着力を有する程度に乾燥させ，この乾燥工程の直後
に，絶縁性濾材に対して含塵ガスの流れ方向の上流側と
下流側に稜線部分が形成されるように襞折り加工を施し
て，濾材の相隣る折り畳み面に接着されている同一の糸
状体に含浸塗布された導電性接着剤同志を接着させるこ
とにより，襞折り形態を維持するとともに，濾材の相隣
る各折り畳み面間の間隔を保持するスペーサーを形成す
ることを特徴とし， 含塵ガスを通過させその中の浮遊粒子を予備荷電す
るための荷電部と，該荷電部を通過した含塵ガス中の荷
電された浮遊粒子を電界の作用下において捕集するため
の絶縁性濾材が含塵ガスの流れ方向の上流側と下流側に
稜線部分を交互に形成するように襞折りされ，かつ，上
流側と下流側の各折り畳み面間の間隔を保持するための
複数条のスペーサーを具備してなる集塵部とからなる静
電式濾過集塵装置において，上流側のスペーサーが絶縁
性スペーサーで，下流側のスペーサーが導電性スペーサ
ーであって，上記絶縁性濾材の表裏の相対する位置に絶
縁性スペーサーは絶縁性接着剤で，導電性スペーサーは
導電性接着剤でそれぞれ接着され，上記導電性スペーサ
ーの相互間に高電圧を印加するように構成することを特
徴とし， フィルター体となったときの絶縁性濾材の含塵ガス
の流れ方向の下流側には，２００〜６０００ｃｐｓの粘
度を有する導電性接着剤を含浸塗布した含浸性のある糸
状体を印加する電圧との関係により適当な間隔をおいて
濾材に接触させ，この絶縁性濾材を１００〜３００℃，
３０〜６０秒間の乾燥工程に入れて，絶縁性濾材に接触
している導電性接着剤は絶縁性濾材に含浸接着させ，絶
縁性濾材に接触していない導電性接着剤は接着力を有す
る程度に乾燥させ，次いで，フィルター体となったとき
の絶縁性濾材の含塵ガスの流れ方向の上流側で上記導電
性接着剤を含浸塗布した含浸性のある糸状体に相対する
位置に絶縁性接着剤を含浸塗布した含浸性のある糸状体
を接触させ，この絶縁性濾材を１００〜３００℃，３０
〜６０秒間の乾燥工程に入れて，絶縁性濾材に接触して
いる絶縁性接着剤は，既に含浸している上記導電性接着
剤の上流側を覆うように含浸接着させ，絶縁性濾材に接
触していない絶縁性接着剤及び上記導電性接着剤は，接
着力を有する程度に乾燥させ，この乾燥工程の直後に絶
縁性濾材に対して含塵ガスの流れ方向の上流側と下流側
に稜線部分が形成されるように襞折り加工を施して，濾
材の相隣る折り畳み面に接着塗布された導電性接着剤同
志及び絶縁性接着剤同志を接着させることにより，襞折
り形態を維持するとともに，濾材の相隣る各折り畳み面
間の間隔を保持するスペーサーを形成することを特徴と
し， 導電性接着剤が，水溶性エマルションにカーボンな
どの導電性物質を添加し，更に難燃剤，天然ゴム，架橋
剤を添加することを特徴とするものである。[Means for Solving the Problems] In order to achieve the above object, the present invention provides a charging unit for passing a dust-containing gas to precharge suspended particles therein, and a charging unit for passing the charging unit. In order to collect the charged suspended particles in the dust gas under the action of the electric field, the insulating filter medium is folded so as to alternately form ridges on the upstream side and the downstream side in the dust gas flow direction, and , An electrostatic filtration dust collector comprising a dust collecting section provided with a plurality of spacers for maintaining a space between each of the folding surfaces on the upstream side and the downstream side. The spacers are conductive spacers, and the spacers are adhered to the opposite sides of the insulating filter medium with conductive adhesives, respectively, and a high voltage is applied between the conductive spacers. , Insulating filter media front and back 200 to 600 to the opposite position
Impregnating filaments impregnated with a conductive adhesive having a viscosity of 0 cps are brought into contact with each other at an appropriate interval depending on the applied voltage, and the insulating filter medium is mixed with 100 to 3 parts.
In a drying process at 00 ° C for 30 to 60 seconds, the conductive adhesive that is in contact with the insulating filter medium is impregnated and adhered to the insulating filter medium, and the conductive adhesive that is not in contact with the insulating filter medium is
Immediately after this drying step, the insulating filter medium is fold-folded so that ridges are formed on the upstream side and the downstream side of the dust-containing gas flow direction. The fold shape is maintained by adhering the conductive adhesives impregnated and applied to the same filaments adhered to the adjacent folds of the filter medium, and the folds between the adjacent folds of the filter medium are maintained. Charged floating particles in the dust-containing gas that have passed through the charged portion, characterized in that they form spacers that hold a gap, and that allow the dust-containing gas to pass therethrough to precharge the suspended particles therein. The insulating filter material for collecting the gas under the action of the electric field is folded so as to alternately form ridges on the upstream side and the downstream side in the flow direction of the dust-containing gas, and each of the upstream side and the downstream side is folded. Multiple to maintain spacing between folds In an electrostatic filtration dust collector comprising a dust collecting section having strip spacers, the upstream spacer is an insulating spacer, the downstream spacer is a conductive spacer, and The insulating spacers and the conductive spacers are adhered to opposite positions on the front and back sides with an insulating adhesive and a conductive adhesive, respectively, and a high voltage is applied between the conductive spacers. The voltage applied to the impregnating filaments impregnated with a conductive adhesive having a viscosity of 200 to 6000 cps is applied to the downstream side of the flow direction of the dust-containing gas in the insulating filter medium when the filter body is formed. According to the above relationship, the insulating filter medium is brought into contact with the filter medium at an appropriate interval, and the insulating filter medium is heated to 100 to 300 ° C.
In a drying process for 30 to 60 seconds, the conductive adhesive that is in contact with the insulating filter medium is impregnated and adhered to the insulating filter medium, and the conductive adhesive that is not in contact with the insulating filter medium has adhesive strength. And then insulatively adhere to a position opposite to the impregnating filamentous material impregnated and coated with the above conductive adhesive on the upstream side of the direction of the dust-containing gas flow of the insulative filter medium when it becomes a filter body. A filamentous material having an impregnating property is brought into contact with the insulating filter medium at 100 to 300 ° C. for 30 minutes.
In the drying step for about 60 seconds, the insulating adhesive which is in contact with the insulating filter medium is impregnated and adhered so as to cover the upstream side of the above-mentioned conductive adhesive which has already been impregnated, and contact the insulating filter medium. The insulative adhesive and the above-mentioned electrically conductive adhesive are dried to such an extent that they have an adhesive force, and immediately after this drying step, ridge lines are formed on the upstream side and the downstream side of the flow direction of the dust-containing gas with respect to the insulating filter medium. The folds are formed so that the parts are formed, and the conductive adhesives and the insulating adhesives that are adhesively applied to the adjacent folding surfaces of the filter medium are adhered to each other to maintain the fold shape. , Characterized by forming a spacer that maintains the space between the adjacent folding surfaces of the filter medium, the conductive adhesive is made by adding a conductive substance such as carbon to a water-soluble emulsion, and further adding a flame retardant or natural rubber. ， Adding cross-linking agent It is characterized by.
【０００５】[0005]
【発明の実施の形態】 本発明の一つ目は，含塵ガスを
通過させその中の浮遊粒子を予備荷電するための荷電部
と，該荷電部を通過した含塵ガス中の荷電された浮遊粒
子を電界の作用において捕集するための絶縁性濾材が含
塵ガスの流れ方向の上流側と下流側に稜線部分を交互に
形成するように襞折りされ，かつ，上流側と下流側の各
折り畳み面間の間隔を保持するための複数条のスペーサ
ーが具備されてなる集塵部とからなる静電式濾過集塵装
置において，上流側のスペーサーと下流側のスペーサー
を導電性スペーサーとし，これらのスペーサーを上記絶
縁性濾材の表裏の相対する位置に導電性接着剤でそれぞ
れ接着し，上記導電性スペーサーの相互間に高電圧を印
加するように構成する。BEST MODE FOR CARRYING OUT THE INVENTION The first aspect of the present invention is to charge a dust-containing gas and precharge the suspended particles therein, and to charge the dust-containing gas that has passed through the charging portion. An insulating filter medium for collecting suspended particles in the action of an electric field is folded so as to alternately form ridges on the upstream side and the downstream side in the flow direction of dust-containing gas, and the upstream and downstream sides are also folded. In an electrostatic filtration dust collector comprising a dust collecting section provided with a plurality of spacers for maintaining the space between the folding surfaces, the upstream spacer and the downstream spacer are conductive spacers, These spacers are adhered to the opposite sides of the above-mentioned insulating filter medium at positions opposite to each other with a conductive adhesive, and a high voltage is applied between the conductive spacers.
【０００６】 上記の構成よりなる静電式濾過集塵装置
用フィルターを制作するには，絶縁性濾材の表裏の相対
する位置に２００〜６０００ｃｐｓの粘度を有する導電
性接着剤を含浸塗布した含浸性のある糸状体を，印加す
る電圧との関係により適当な間隔をおいて接触させる。
この絶縁性濾材を１００〜３００℃，３０〜６０秒間の
乾燥工程にいれて，絶縁性濾材に接触している導電性接
着剤は，絶縁性濾材に含浸接着させ，絶縁性濾材に接触
していない導電性接着剤は，接着力を有する程度に乾燥
させる。この乾燥工程の直後に，絶縁性濾材に対して含
塵ガスの流れ方向の上流側と下流側に稜線部分が形成さ
れるように襞折り加工をほどこして，濾材の相隣る折り
畳み面に接着されている同一の糸状体に含浸塗布された
導電性接着剤同志を接着させることにより，襞折り形態
を維持するとともに，濾材の相隣る各折り畳み面間の間
隔を保持するスペーサーを形成するようにする。In order to manufacture a filter for an electrostatic filter dust collector having the above-mentioned structure, impregnating property is obtained by impregnating and applying a conductive adhesive having a viscosity of 200 to 6000 cps on opposite sides of an insulating filter medium. The filamentous material with contact is contacted at an appropriate interval depending on the relationship with the applied voltage.
The insulating filter medium is put in a drying process at 100 to 300 ° C. for 30 to 60 seconds, and the conductive adhesive which is in contact with the insulating filter medium is impregnated and adhered to the insulating filter medium and is in contact with the insulating filter medium. No conductive adhesive is dried to the extent that it has adhesive strength. Immediately after this drying process, folds were applied to the insulating filter medium so that ridges were formed on the upstream side and the downstream side in the flow direction of the dust-containing gas, and it was adhered to the adjacent folding surfaces of the filter medium. By bonding the conductive adhesives that have been impregnated and applied to the same filamentous material, it is possible to maintain the fold shape and form a spacer that maintains the space between the adjacent folding surfaces of the filter medium. To
【０００７】 本発明の二つ目は，本発明の一つ目の静
電式濾過集塵装置と同じ装置において，上流側のスペー
サーを絶縁性スペーサーとし，下流側のスペーサーを導
電性スペーサーとし，上記絶縁性濾材の表裏の相対する
位置に絶縁性スペーサーは絶縁性接着剤でそれぞれ接着
し，導電性スペーサーは導電性接着剤でそれぞれ接着
し，上記導電性スペーサーの相互間に高電圧を印加する
ように構成する。A second aspect of the present invention is the same apparatus as the electrostatic filtration dust collector of the first aspect of the present invention, in which the upstream spacer is an insulating spacer and the downstream spacer is a conductive spacer. The insulating spacers are adhered to each other at opposite positions on the front and back of the insulating filter medium with an insulating adhesive, the conductive spacers are adhered with a conductive adhesive, and a high voltage is applied between the conductive spacers. To configure.
【０００８】 上記の構成よりなる静電式濾過集塵装置
用フィルターを制作するには，フィルター体となったと
きの絶縁性濾材の含塵ガスの流れ方向の下流側には，２
００〜６０００ｃｐｓの粘度を有する導電性接着剤を含
浸塗布した含浸性のある糸状体を印加する電圧との関係
により適当間隔をおいて濾材に接触させる。この絶縁性
濾材を１００〜３００℃，３０〜６０秒間の乾燥工程に
いれて，絶縁性濾材に接触している導電性接着剤は絶縁
性濾材に含浸接着させ，絶縁性濾材に接触していない導
電接着剤は接着力を有する程度に乾燥させる。次いで，
フィルター体となったときの絶縁性濾材の含塵ガスの流
れ方向の上流側で上記導電性接着剤を含浸塗布した含浸
性のある糸状体に相対する位置に絶縁性接着剤を含浸塗
布した含浸性のある糸状体を接触させ，この絶縁性濾材
を１００〜３００℃，３０〜６０秒間の乾燥工程に入れ
る。そして，絶縁性濾材に接触している絶縁性接着剤
は，既に含浸している上記導電性接着剤の上流側を覆う
ように含浸接着させ，絶縁性濾材に接触していない絶縁
性接着剤及び導電性接着剤は，接着力を有する程度に乾
燥させる。この乾燥工程の直後に絶縁性濾材に対して含
塵ガスの流れ方向の上流側と下流側に稜線部分が形成さ
れるように襞折り加工をほどこして，濾材の相隣る折り
畳み面に接着塗布された導電性接着剤同志及び絶縁性接
着剤同志を接着させることにより，襞折り形態を維持す
るとともに，濾材の相隣る各折り畳み面間の間隔を保持
するスペーサーを形成するようにする。In order to manufacture the filter for the electrostatic filtration dust collector having the above-mentioned structure, 2 pieces are provided on the downstream side in the flow direction of the dust-containing gas of the insulating filter material when the filter body is formed.
The impregnating filaments impregnated with a conductive adhesive having a viscosity of 00 to 6000 cps are brought into contact with the filter medium at appropriate intervals depending on the relationship with the applied voltage. This insulating filter medium is put in a drying process at 100 to 300 ° C. for 30 to 60 seconds, and the conductive adhesive which is in contact with the insulating filter medium is impregnated and adhered to the insulating filter medium and is not in contact with the insulating filter medium. The conductive adhesive is dried to an adhesive strength. Then,
Impregnated with the insulating adhesive impregnated and applied at a position opposite to the impregnating filamentous material with the conductive adhesive impregnated and applied on the upstream side in the flow direction of the dust-containing gas of the insulative filter medium when the filter body is formed. The insulating filter medium is put in a drying process at 100 to 300 ° C. for 30 to 60 seconds. The insulating adhesive in contact with the insulating filter medium is impregnated and adhered so as to cover the upstream side of the conductive adhesive already impregnated, and the insulating adhesive not in contact with the insulating filter medium and The conductive adhesive is dried to an adhesive strength. Immediately after this drying process, folds are applied to the insulating filter medium so that ridges are formed on the upstream side and the downstream side in the flow direction of the dust-containing gas, and adhesive coating is applied to the adjacent folding surfaces of the filter medium. The conductive adhesive and the insulating adhesive are adhered to each other so as to maintain the fold shape and form a spacer that maintains a space between the adjacent folding surfaces of the filter medium.
【０００９】 上記二つの静電式濾過集塵装置用フィル
ターの制作工程において使用する導電性接着剤として
は，水溶性エマルションにカーボンなどの導電性物質を
添加し，更に，難燃剤，天然ゴム，架橋剤を添加してな
るものを使用する。As the conductive adhesive used in the manufacturing process of the above two filters for electrostatic filtration dust collectors, a conductive substance such as carbon is added to a water-soluble emulsion, and a flame retardant, natural rubber, The thing which adds a crosslinking agent is used.
【００１０】[0010]
【実施例】以下図面にもとづいて本発明の実施例を説明
すると，図１において１は静電式濾過集塵装置で，荷電
部２と集塵部３とからなる。荷電部２は，複数の平板電
極４を等間隔をおいて気流方向に平行に配置し，各平板
電極４，４，・・・間の中間位置ごとに放電線５を張設
し，各平板電極４と各放電線５の間には，高圧の直流電
源６Ａを接続してなる。集塵部３は，荷電部２を通過し
た含塵ガス中の荷電された浮遊粒子を電界の作用下にお
いて捕集するため，ガラスなどの無機繊維層又は樹脂繊
維層などからなる絶縁性濾材７が含塵ガスの流れ方向の
上流側と下流側に稜線部分８，９を交互に形成するよう
に襞折りされ，かつ，上流側と下流側の各折り畳み面間
の間隔を保持するための複数条の導電性スペーサー１０
（下流側のスペーサーは図１中省略）を具備し，導電性
スペーサー１０の相互間には，高圧の直流電源６Ｂを接
続してなる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 is an electrostatic filter dust collector, which comprises a charging section 2 and a dust collecting section 3. In the charging unit 2, a plurality of flat plate electrodes 4 are arranged at equal intervals in parallel to the air flow direction, and a discharge wire 5 is stretched at each intermediate position between the flat plate electrodes 4, 4 ,. A high-voltage DC power supply 6A is connected between the electrode 4 and each discharge line 5. The dust collecting unit 3 collects the charged suspended particles in the dust-containing gas that has passed through the charging unit 2 under the action of an electric field, and therefore the insulating filter medium 7 made of an inorganic fiber layer such as glass or a resin fiber layer is used. Are folded so as to alternately form the ridge portions 8 and 9 on the upstream side and the downstream side in the flow direction of the dust-containing gas, and a plurality of folds are provided to maintain the space between the upstream and downstream folding surfaces. Strip conductive spacer 10
(Downstream spacers are omitted in FIG. 1), and a high-voltage DC power supply 6B is connected between the conductive spacers 10.
【００１１】次に，本発明に係る静電式濾過集塵装置用
フィルターの第一実施例を図２にもとづいて説明する
と，１１Ａ，１１Ｂは上流側の導電性スペーサー，１２
Ａ，１２Ｂは下流側の導電性スペーサーであって，これ
らのスペーサー１１Ａ，１１Ｂ，１２Ａ，１２Ｂは，ガ
ラスなどの無機繊維層又は樹脂繊維層などからなる絶縁
性濾材１３の表裏の相対する位置に導電性接着剤１４，
１５でそれぞれ接着してあり，相対する位置の導電性ス
ペーサー１１Ａ，１２Ａには同電位を印加し，導電性ス
ペーサー１１Ｂ，１２Ｂと導電性スペーサー１１Ａ，１
２Ａの相互間には，異電位（図１と同様の印加）となる
ように，フィルター体に直流の高電圧（図２中省略）を
印加する。Next, a first embodiment of the filter for an electrostatic filter / dust collector according to the present invention will be described with reference to FIG. 2. 11A and 11B are upstream conductive spacers, 12
A and 12B are conductive spacers on the downstream side, and these spacers 11A, 11B, 12A and 12B are located at opposite positions on the front and back of the insulating filter medium 13 made of an inorganic fiber layer such as glass or a resin fiber layer. Conductive adhesive 14,
The same potential is applied to the conductive spacers 11A and 12A at the opposite positions, which are adhered to each other by 15, and the conductive spacers 11B and 12B and the conductive spacers 11A and 1A are applied.
A high DC voltage (not shown in FIG. 2) is applied to the filter body so that different potentials are applied (the same application as in FIG. 1) between 2A.
【００１２】次に，上記第一実施例の静電式濾過集塵装
置用フィルターの製法について説明すると，濾材１３の
表裏の相対する位置に２００〜６０００ｃｐｓの粘度を
有する導電性接着剤１４，１５を含浸塗布した含浸性の
ある糸状体１６，１７を接触させる。例えば，ローラー
による押し付けなどの方法がある。糸状体１６，１７に
は，木綿糸，麻糸，絹糸，毛糸など天然繊維製の糸，あ
るいはポリエステル，ビニロン，アクリル，ナイロン，
テトロンなどの有機合成繊維製の糸，ガラス繊維，石綿
などの無機合成繊維製の糸を使用しうるが，これらの糸
のうちでは，木綿糸が最も好ましい。さらに，糸状体１
６，１７には，糸状に細長く連続した材質，例えば，
紙，布，連通孔を有するスポンジ，こより，布をスパイ
ラル状に巻いたもののいずれかを使用することもあり，
それらの断面形状には，図２に示した糸状体１６，１７
や，図３及び図５に示した糸状体２５，２８のように丸
形を採用するほか，図６に示した糸状体２５，２８のよ
うに方形を採用することもあり，また，だ円形，多角形
を採用することもある。なお，糸状体１６，１７には，
含浸性，300 ℃以下の耐熱性，柔軟性，切れにくい特性
を有するものを使用する。糸状体１６，１７の濾材１３
に接触させる場合の間隔は，あまり近いとリークのおそ
れがあり，離れてしまうと電荷が弱くなるので，印加す
る電圧との関係により適当な間隔を選択する必要があ
る。導電性接着剤１４，１５には，エチレン酢酸ビニ
ル，アクリル，酢酸ビニル，天然ゴム，塩化ビニリデン
などの水溶性エマルションにカーボンなどの導電性物質
（例えば，カーボンブラック，ケッチェンブラックなど
や，銅，ニッケル，ステンレスなどの金属，形状は，例
えば，粉体やファイバー状）を添加し，更に，難燃剤を
添加した難燃タイプのものも用いうるが，本実施例で
は，エチレン酢酸ビニルと天然ゴムを混合したものを用
いた。なお，濾材１３の帯電性を上げる，すなわち荷電
を強くするためには，濾材１３に導電性接着剤１４，１
５が含浸するほうが好ましいので，その点から粘度は２
００〜６０００ｃｐｓが良い。含浸の状態として最も好
ましいのは，濾材１３の表裏の接着剤１４，１５同志が
濾材内で互いに接触するようになっていることである。
導電性接着剤１４，１５は，水溶性エマルションにカー
ボンなどや，難燃剤を添加したため，接着力が低下する
傾向になるが，天然ゴム，架橋剤を添加することでこれ
を補う。導電性接着剤１４，１５を含浸塗布した糸状体
１６，１７が上記のように濾材１３に接触した時点から
濾材１３への接着剤１４，１５の含浸が始まり，乾燥工
程に入る迄に含浸が濾材厚さに対して所望の深さまでに
達するようになることが望ましい。ただし，含浸の深さ
は製品とされた場合に確保されていれば良いので，「乾
燥工程に入る迄に」に拘束されるものではない。導電性
接着剤１４，１５を含浸塗布した糸状体１６，１７を上
記のように濾材１３に接触させた状態で１００〜３００
℃，３０〜６０秒間の乾燥工程を経て乾燥させる。する
と，濾材１３に接触している導電性接着剤１４，１５
は，濾材１３に含浸接着し，濾材１３に接触していない
導電性接着剤１４，１５は，接着力を有する程度に乾燥
する。この乾燥工程の直後に，濾材１３に対して含塵ガ
スの流れ方向の上流側と下流側に稜線部分１８，１９が
形成されるように襞折り加工を施して，濾材１３の相隣
る折り畳み面に接着されている同一の糸状体１６，１７
に含浸塗布された導電性接着剤同志を接着２０させるこ
とにより，襞折り形態を維持するとともに，濾材１３の
相隣る各折り畳み面間の間隔を保持するスペーサーを形
成する。Next, a method of manufacturing the filter for the electrostatic filter dust collector of the first embodiment will be described. The conductive adhesives 14, 15 having a viscosity of 200 to 6000 cps are provided at the opposite positions on the front and back sides of the filter medium 13. The thread-like bodies 16 and 17 having the impregnating property are impregnated. For example, there is a method such as pressing with a roller. Threads made of natural fibers such as cotton thread, hemp thread, silk thread, and wool, or polyester, vinylon, acrylic, nylon,
Threads made of organic synthetic fibers such as tetoron, glass fibers, and threads made of inorganic synthetic fibers such as asbestos can be used, but among these threads, cotton threads are most preferable. Furthermore, the filament 1
6 and 17 are long and slender continuous materials, for example,
Paper, cloth, sponge with communication holes, twisted cloth, or spiral wound cloth may be used.
The cross-sectional shapes of the filamentous members 16 and 17 shown in FIG.
Alternatively, in addition to adopting a round shape like the thread bodies 25, 28 shown in FIGS. 3 and 5, a rectangular shape may be adopted as the thread bodies 25, 28 shown in FIG. ， The polygon may be adopted. In addition, in the filamentous bodies 16 and 17,
Use one that has impregnating properties, heat resistance below 300 ° C, flexibility, and resistance to breakage. Filtration medium 13 of filaments 16 and 17
If the distance between the two contacts is too close, there is a risk of leakage, and if they are separated, the charge weakens. Therefore, it is necessary to select an appropriate interval depending on the relationship with the applied voltage. The conductive adhesives 14 and 15 include conductive substances such as carbon (eg, carbon black, Ketjen black, copper, etc.) in water-soluble emulsions such as ethylene vinyl acetate, acrylic, vinyl acetate, natural rubber, and vinylidene chloride. Metals such as nickel and stainless steel, the shape of which is, for example, powder or fiber, and a flame retardant type in which a flame retardant is further added can be used, but in this embodiment, ethylene vinyl acetate and natural rubber are used. Was used as a mixture. In order to improve the chargeability of the filter medium 13, that is, to increase the charge, the filter medium 13 is provided with a conductive adhesive 14,1.
Since it is preferable that 5 is impregnated, the viscosity is 2 from that point.
00-6000 cps is good. The most preferable state of impregnation is that the adhesives 14, 15 on the front and back of the filter medium 13 are in contact with each other in the filter medium.
The conductive adhesives 14 and 15 tend to have a reduced adhesive force because carbon or the like or a flame retardant is added to the water-soluble emulsion, but this is supplemented by adding natural rubber or a cross-linking agent. Impregnation of the adhesives 14 and 15 into the filter medium 13 starts from the time when the filaments 16 and 17 impregnated with the conductive adhesives 14 and 15 come into contact with the filter medium 13 as described above, and the impregnation is continued until the drying step is started. It is desirable to reach the desired depth for the filter media thickness. However, the depth of impregnation is not limited to "by the start of the drying process", as long as it is ensured when the product is made. The filamentous materials 16, 17 impregnated with the conductive adhesives 14, 15 are in a state of being in contact with the filter medium 13 as described above, and are 100 to 300.
Drying is carried out at a temperature of 30 to 60 seconds. Then, the conductive adhesives 14, 15 contacting the filter medium 13
Is impregnated and adhered to the filter medium 13, and the conductive adhesives 14 and 15 not in contact with the filter medium 13 are dried to such an extent that they have adhesive force. Immediately after this drying step, folds were applied to the filter medium 13 so that the ridge line portions 18 and 19 were formed on the upstream side and the downstream side in the flow direction of the dust-containing gas, and the filter medium 13 was folded adjacent to each other. Identical filaments 16, 17 adhered to the surface
By bonding 20 the conductive adhesives impregnated and coated with each other, a fold shape is maintained and a spacer is formed to maintain a space between the adjacent folding surfaces of the filter medium 13.
【００１３】次に，本発明に係る静電濾過集塵装置用フ
ィルターの第二実施例を図３にもとづいて説明すると，
２１は上流側の絶縁性スペーサー，２２は下流側の導電
性スペーサーであって，これらのスペーサー２１，２２
は，ガラスなどの無機繊維層又は樹脂繊維層などからな
る絶縁性濾材２３の表裏の相対する位置において，絶縁
性スペーサー２１は，絶縁性接着剤で，導電性スペーサ
ー２２は，導電性接着剤２４でそれぞれ接着してあり，
導電性スペーサー２２の相互間には，直流の高電圧（図
３中省略）を印加する。Next, a second embodiment of the filter for electrostatic filtration dust collector according to the present invention will be described with reference to FIG.
21 is an insulating spacer on the upstream side, 22 is a conductive spacer on the downstream side, and these spacers 21, 22
The insulating spacers 21 are insulating adhesives, and the conductive spacers 22 are conductive adhesives 24 at the opposite positions on the front and back sides of the insulating filter medium 23 made of an inorganic fiber layer such as glass or a resin fiber layer. Are glued to each other,
A high DC voltage (not shown in FIG. 3) is applied between the conductive spacers 22.
【００１４】次に，上記第二実施例の静電式濾過集塵装
置用フィルターの製法を図４及び図５にもとづいて説明
すると，フィルター体となったときの濾材２３の含塵ガ
スの流れ方向の下流側，すなわち濾材２３の裏面に第一
実施例で使用した導電性接着剤１４，１５と同じ導電性
接着剤２４を含浸塗布した糸状体２５を接触させる。糸
状体２５の濾材２３に接触させる場合の間隔は，あまり
近いとリークのおそれがあり，離れてしまうと電荷が弱
くなるので，印加する電圧との関係により適当な間隔を
選択する必要がある。導電性接着剤には，水溶性エマル
ションにカーボンなどの導電性物質を添加し，更に難燃
剤を添加した難燃タイプのものも用いた。また，濾材２
３の帯電性を上げる，すなわち荷電を強くするために
は，濾材２３に導電性接着剤２４が含浸するほうが好ま
しいので，その点から粘度は，２００〜６０００ｃｐｓ
が良い。導電性接着剤２４を含浸塗布した糸状体２５
は，図４に示すようにローラー２６で濾材２３に押し付
けられるように接触される。この場合，導電性接着剤２
４を含浸塗布した糸状体２５が濾材２３に接触した時点
から濾材２３への接着剤２４の含浸が始まり，乾燥工程
に入る迄に含浸が濾材厚さに対して所望の深さまでに達
するようになることが望ましい。ただし，含浸の深さは
製品とされた場合に確保されていれば良いので，「乾燥
工程に入る迄に」に拘束されるものではない。所望の深
さとは，濾材厚さをｔとすると「１／２ｔ以上」とする
ことが集塵効率を確保する上で望ましい。導電性接着剤
２４は，水溶性エマルションにカーボンなどや，難燃剤
を添加したため，接着力が低下する傾向になるが，天然
ゴム，架橋剤を添加することでこれを補う。導電性接着
剤２４を含浸塗布した糸状体２５を上記のように濾材２
３に接触させた状態で１００〜３００℃，３０〜６０秒
間の乾燥工程１を経て乾燥させる。すると，濾材２３に
接触している導電性接着剤２４は，濾材２３に含浸接着
し，濾材２３に接触していない導電性接着剤２４は，接
着力を有する程度に乾燥する。次いで，フィルター体と
なったときの濾材２３の含塵ガスの流れ方向の上流側，
すなわち濾材２３の表面に絶縁性接着剤２７を含浸塗布
した糸状体２８を接触させる。接触させる場合の間隔
は，前記の導電性接着剤２４を含浸塗布した糸状体２５
に相対する位置に接触させる必要がある。なお，絶縁性
接着剤は導電性接着剤に比べ接着性に優れるので，フィ
ルター体となったときに更に強度を上げることにも良い
影響を及ぼす。なお，糸状体２５，２８には，糸状体１
６，１７について説明した材質，断面形状，特性を有す
るものと同じものを適宜選択して使用する。絶縁性接着
剤２７には，水溶性エマルションに難燃剤を添加した難
燃タイプのものを用いた。その粘度については，２００
〜６０００ｃｐｓのもを用いうるが，本実施例では，３
０００ｃｐｓのものを用いた。また，導電性接着剤２４
を含浸塗布した糸状体２５同志が濾過した導電性粒子，
すなわち導電性物質により絶縁が十分でなくなることを
防ぐために，濾材２３に絶縁性接着剤２７が含浸し，既
に含浸している導電性接着剤２４の上流側を覆うように
なることが望ましい。絶縁性接着剤２７を含浸塗布した
糸状体２８は，図４に示すようにローラー２９で濾材２
３に押し付けられるように接触する。この場合，絶縁性
接着剤２７を含浸塗布した糸状体２８が濾材に接触した
時点から濾材２３への接着剤２７の含浸が始まり，乾燥
工程に入る迄に含浸が濾材厚さに対して所望の深さ迄に
達するように，かつ，図５に示すように既に含浸してい
る導電性接着剤２４の上流側を覆うようになることが望
ましい。ただし，含浸の深さは製品とされた場合に確保
されていれば良いので，「乾燥工程に入る迄に」に拘束
されるものではない。所望の深さとは，濾材厚さをｔ・
導電性接着剤２４の含浸の深さをｔ１とすると「ｔ−ｔ
１」とすることが絶縁を確保する上で望ましい。絶縁性
接着剤２７を含浸塗布した糸状体２５を上記のように濾
材２３に接触させた状態で１００〜３００℃，３０〜６
０秒間の乾燥工程２を経て乾燥させる。すると濾材２３
に接触している絶縁性接着剤２７は，濾材２３に含浸接
着し，濾材２３に接触していない絶縁性接着剤２７は，
接着力を有する程度に乾燥する。なお，導電性接着剤２
４は，１００〜３００℃，３０〜６０秒間の乾燥工程を
２回通過することになるが，２回目の乾燥工程を経ても
接着力を有する程度に乾燥している。この乾燥工程の直
後に，濾材２３に対して含塵ガスの流れ方向の上流側と
下流側に稜線部分２９，３０が形成されるように襞折り
加工を施して，濾材２３の相隣る折り畳み面に接着して
いる糸状体２５，２８に含浸塗布された導電性接着剤２
４同志及び絶縁性接着剤２７同志をそれぞれ接着３１さ
せることにより，襞折り形態を維持するとともに，濾材
２３の相隣る各折り畳み面間の間隔を保持するスペーサ
ーを形成する。Next, a method of manufacturing the filter for the electrostatic type dust collector of the second embodiment will be described with reference to FIGS. 4 and 5. The flow of the dust-containing gas of the filter medium 23 when the filter body is formed. The filament 25 impregnated with the same conductive adhesive 24 as the conductive adhesives 14 and 15 used in the first embodiment is brought into contact with the downstream side of the direction, that is, the back surface of the filter medium 23. When the filament 25 is brought into contact with the filter medium 23, if it is too close, there is a risk of leakage, and if it is separated, the charge weakens. Therefore, it is necessary to select an appropriate interval depending on the relationship with the applied voltage. The conductive adhesive used was a flame-retardant type in which a conductive substance such as carbon was added to a water-soluble emulsion and a flame retardant was further added. Also, filter medium 2
In order to improve the charging property of No. 3, that is, to strengthen the charging, it is preferable to impregnate the filter medium 23 with the conductive adhesive 24. From that point, the viscosity is 200 to 6000 cps.
Is good. Filament 25 impregnated with conductive adhesive 24
Are brought into contact by being pressed against the filter medium 23 by the roller 26 as shown in FIG. In this case, the conductive adhesive 2
The impregnation of the adhesive agent 24 into the filter medium 23 starts from the time when the filament 25 impregnated with 4 contacts the filter medium 23, and the impregnation reaches a desired depth with respect to the filter medium thickness by the time the drying process starts. Is desirable. However, the depth of impregnation is not limited to "by the start of the drying process", as long as it is ensured when the product is made. The desired depth is preferably "1/2 t or more", where t is the thickness of the filter medium, in order to secure the dust collection efficiency. The conductive adhesive 24 tends to have a reduced adhesive force because carbon or the like or a flame retardant is added to the water-soluble emulsion, but this is supplemented by adding natural rubber or a cross-linking agent. The filament 25 impregnated with the conductive adhesive 24 is applied to the filter medium 2 as described above.
In the state of being brought into contact with No. 3, dried through the drying step 1 at 100 to 300 ° C. for 30 to 60 seconds. Then, the conductive adhesive 24 that is in contact with the filter medium 23 is impregnated and bonded to the filter medium 23, and the conductive adhesive 24 that is not in contact with the filter medium 23 is dried to the extent that it has adhesive force. Next, on the upstream side in the flow direction of the dust-containing gas of the filter medium 23 when the filter body is formed,
That is, the filament 28 impregnated with the insulating adhesive 27 is brought into contact with the surface of the filter medium 23. The interval when they are brought into contact with each other is the filament 25 impregnated with the conductive adhesive 24.
It is necessary to contact the position opposite to. Since the insulating adhesive is superior in adhesiveness to the conductive adhesive, it also has a good effect on further increasing strength when it becomes a filter body. It should be noted that the filaments 25 and 28 have the filament 1
The same materials, cross-sectional shapes, and characteristics described for Nos. 6 and 17 are appropriately selected and used. As the insulating adhesive 27, a flame-retardant type adhesive obtained by adding a flame retardant to a water-soluble emulsion was used. For its viscosity, 200
Although about 6000 cps can be used, in this embodiment, 3
000 cps was used. In addition, the conductive adhesive 24
Filament 25 impregnated and coated with conductive particles filtered by each other,
That is, in order to prevent insufficient insulation due to the conductive substance, it is desirable that the filter medium 23 be impregnated with the insulating adhesive 27 so as to cover the upstream side of the conductive adhesive 24 that has already been impregnated. The filament 28 impregnated with the insulating adhesive 27 is applied to the filter medium 2 by the roller 29 as shown in FIG.
It touches so that it may be pressed against 3. In this case, the impregnation of the adhesive 27 with the insulating adhesive 27 starts from the time when the filament 28 comes into contact with the filter medium until the impregnation of the adhesive 27 into the filter medium 23 begins to the drying step. It is desirable to reach the depth and cover the upstream side of the conductive adhesive 24 already impregnated as shown in FIG. However, the depth of impregnation is not limited to "by the start of the drying process", as long as it is ensured when the product is made. The desired depth is the filter media thickness t
Assuming that the depth of impregnation with the conductive adhesive 24 is t1, “t−t
It is desirable to set it to "1" in order to secure insulation. With the filamentous material 25 impregnated with the insulating adhesive 27 applied to the filter medium 23 as described above, 100 to 300 ° C., 30 to 6 ° C.
Drying is performed through the drying step 2 for 0 seconds. Then filter medium 23
The insulating adhesive 27 that is in contact with the filter 23 is impregnated and bonded to the filter medium 23, and the insulating adhesive 27 that is not in contact with the filter medium 23 is
Dry to the extent that it has adhesive strength. Conductive adhesive 2
Sample No. 4 passes through a drying process of 100 to 300 ° C. for 30 to 60 seconds twice, but is dried to such an extent that it has an adhesive force even after the second drying process. Immediately after this drying step, folds are applied to the filter medium 23 so that the ridge line portions 29 and 30 are formed on the upstream side and the downstream side in the flow direction of the dust-containing gas, and the filter medium 23 is folded adjacent to each other. Conductive adhesive 2 impregnated and applied to the filaments 25 and 28 adhered to the surface
4 By adhering 31 to each other and the insulating adhesive 27 to each other, a fold shape is maintained, and a spacer is formed to maintain the space between the adjacent folding surfaces of the filter medium 23.
【００１５】[0015]
【発明の効果】本発明は，叙上のように構成したから，
次のような諸効果を奏する。請求項１及び請求項２記載
の発明では， 小型・薄型化された高集塵効率の静電式濾過集塵装
置用フィルターが得られる。絶縁性濾材を挟み込む形で
表裏の相対する位置に導電性接着剤を含浸塗布した糸を
接着させ，かつ，濾材に導電性接着剤が含浸するので，
見かけ上１本の太い導電体となり，濾材内部の深い位置
の繊維層まで電圧印加ができ，高集塵効率が可能とな
る。 導電性接着剤が相対して接着されるので，フィルタ
ー体となったときの全体の強度が強い。また稜線部分で
見ると導通距離が短くなるために，抵抗値が下がるの
で，電圧降下が小さい。したがって集塵効率の低下も少
ない。 スペーサーには，糸状体に導電性接着剤を含浸塗布
したものを絶縁性濾材に接着させるので，途切れや襞折
り時の断線の心配が少なく，確実な導通を得ることがで
きる。 導電性接着剤に水溶性エマルションを使用するの
で，溶剤系接着剤を使用するものに比べて安全であり，
省エネルギーにもなる。請求項３及び請求項４記載の発
明では， 小型・薄型化された高集塵効率の静電式濾過集塵装
置用フィルターが得られる。絶縁性濾材を挟み込む形で
表裏の相対する位置に絶縁性接着剤を含浸塗布した糸状
体と導電性接着剤を含浸塗布した糸状体を接着させ，か
つ，濾材に導電性接着剤が含浸するので，導電体が太く
なり，濾材内部の深い位置の繊維層まで電圧印加がで
き，高集塵効率が可能となる。 濾材の断面を見た場合，導電性接着剤が濾材に含浸
し，それを覆うように絶縁性接着剤も含浸しているの
で， （ａ） 集塵装置として使用した場合に浮遊粒子が付着
する上流側に絶縁性接着剤を用いているので，導電性粒
子，すなわち導電性物質が付着しても，導電性スペーサ
ー（＝荷電）間の絶縁を無くす，所謂短絡状態のような
ことが起こりにくいので，電界の低下が起こりにくく，
結果的に静電式濾過集塵装置用フィルターとしての効果
を損なうことが防げる。 （ｂ） 絶縁性接着剤は，導電性接着剤に比べ接着性が
優れるので，上下流とも導電性接着剤のフィルター体に
比べて，フィルター体となったときの全体の強度が強
い。 稜線部分で見ると導通距離が短くなるために，抵抗
値が下がるので，電圧降下が小さい。 スペーサーには，糸状体に導電性接着剤及び絶縁性
接着剤を含浸塗布したものを絶縁性濾材に接着させるの
で，途切れや，襞折り時の断線の心配が少なく，確実な
導通を得ることができる。 導電性接着剤及び絶縁性接着剤に水溶性エマルショ
ンを使用するので，溶剤系接着剤を使用するものに比べ
安全であり，省エネルギーにもなる。Since the present invention is constructed as described above,
It has the following effects. According to the first and second aspects of the present invention, it is possible to obtain a compact and thin filter for electrostatic type electrostatic precipitator having high dust collecting efficiency. Since the insulating filter medium is sandwiched between the front and back sides, the conductive adhesive is impregnated and applied at the opposite positions, and the filter medium is impregnated with the conductive adhesive.
Apparently one thick conductor, voltage can be applied to the deep fiber layer inside the filter medium, and high dust collection efficiency is possible. Since the conductive adhesives are bonded to each other, the strength of the entire filter body is strong. Also, when viewed from the ridge, the conduction distance becomes shorter and the resistance value decreases, so the voltage drop is small. Therefore, the dust collection efficiency is not significantly reduced. As the spacer, a filament-like material impregnated with a conductive adhesive is adhered to the insulating filter medium, so that there is little concern about disconnection or disconnection at the time of folding, and reliable conduction can be obtained. Since a water-soluble emulsion is used for the conductive adhesive, it is safer than one that uses a solvent-based adhesive,
It also saves energy. According to the third and fourth aspects of the present invention, it is possible to obtain a compact and thin filter for an electrostatic filtration dust collector with high dust collection efficiency. Since the filamentous material impregnated with the insulating adhesive and the filamentous material impregnated with the conductive adhesive are bonded to the opposite positions on the front and back sides with the insulating filter medium sandwiched therebetween, and the conductive adhesive is impregnated into the filter medium. , The conductor becomes thicker, and the voltage can be applied to the fiber layer at the deep position inside the filter medium, and high dust collection efficiency becomes possible. When looking at the cross section of the filter medium, the conductive medium is impregnated in the filter medium, and the insulating adhesive is also impregnated so as to cover it. (A) Suspended particles adhere when used as a dust collector Since an insulating adhesive is used on the upstream side, even if conductive particles, that is, a conductive substance, adhere, the insulation between the conductive spacers (= charges) is lost, and so-called short-circuiting is unlikely to occur. Therefore, the decrease of the electric field is unlikely to occur,
As a result, it is possible to prevent impairing the effect as the filter for the electrostatic filter dust collector. (B) Since the insulating adhesive has excellent adhesiveness as compared with the conductive adhesive, the strength of the entire filter body is stronger in both the upstream and the downstream than the conductive adhesive filter body. When viewed from the ridge, the conduction distance becomes shorter and the resistance value decreases, so the voltage drop is small. The spacer is made by impregnating the filamentous material with the conductive adhesive and the insulating adhesive and is adhered to the insulating filter medium. Therefore, there is little concern about breakage or disconnection at the time of folding, and reliable conduction can be obtained. it can. Since a water-soluble emulsion is used for the conductive adhesive and the insulating adhesive, it is safer and more energy efficient than those using a solvent-based adhesive.
【図面の簡単な説明】[Brief description of drawings]
【図１】 静電式濾過集塵装置の概略を示す斜視図であ
る。FIG. 1 is a perspective view showing an outline of an electrostatic filtration dust collector.
【図２】 本発明の第一実施例に係るフィルターの一部
斜視図である。FIG. 2 is a partial perspective view of the filter according to the first embodiment of the present invention.
【図３】 本発明の第二実施例に係るフィルターの一部
斜視図である。FIG. 3 is a partial perspective view of a filter according to a second embodiment of the present invention.
【図４】 本発明の第二実施例に係るフィルターの製法
過程の概略を示す図である。FIG. 4 is a diagram showing an outline of a manufacturing process of a filter according to a second embodiment of the present invention.
【図５】 本発明の第二実施例に係るフィルターの一部
を拡大した断面図である。FIG. 5 is an enlarged sectional view of a part of the filter according to the second embodiment of the present invention.
【図６】 糸状体の変更実施例の断面図である。FIG. 6 is a cross-sectional view of a modified example of a filament.
１ 静電式濾過集塵装置 ２ 荷電部 ３ 集塵部 １１Ａ，１２Ａ 導電性スペーサー １１Ｂ，１２Ｂ 導電性スペーサー １３ 絶縁性濾材 １４，１５ 導電性接着剤 １６，１７ 糸状体 １８，１９ 稜線部分 ２０ 接着部 ２１ 絶縁性スペーサー ２２ 導電性スペーサー ２３ 絶縁性濾材 ２４ 導電性接着剤 ２５ 糸状体 ２７ 絶縁性接着剤 ２８ 糸状体 ２９，３０ 稜線部分 ３１ 接着部 1 Electrostatic Filter Dust Collector 2 Charging Part 3 Dust Collecting Part 11A, 12A Conductive Spacer 11B, 12B Conductive Spacer 13 Insulating Filter Material 14,15 Conductive Adhesive 16,17 Filament 18,19 Ridge Line Part 20 Adhesion Part 21 Insulating spacer 22 Conductive spacer 23 Insulating filter medium 24 Conductive adhesive 25 Filament 27 Insulating adhesive 28 Filament 29, 30 Ridge part 31 Adhesive part
Claims (5)
予備荷電するための荷電部と，該荷電部を通過した含塵
ガス中の荷電された浮遊粒子を電界の作用下において捕
集するための絶縁性濾材が含塵ガスの流れ方向の上流側
と下流側に稜線部分を交互に形成するように襞折りさ
れ，かつ，上流側と下流側の各折り畳み面間の間隔を保
持するための複数条のスペーサーが具備されてなる集塵
部とからなる静電式濾過集塵装置において，上流側のス
ペーサーと下流側のスペーサーが導電性スペーサーであ
って，上記絶縁性濾材の表裏の相対する位置に導電性接
着剤でそれぞれ接着され，上記導電性スペーサーの相互
間に高電圧を印加するように構成することを特徴とする
静電式濾過集塵装置用フィルター。1. A charged portion for passing a dust-containing gas to precharge suspended particles therein, and a charged suspended particle in the dust-containing gas that has passed through the charged portion is collected under the action of an electric field. The insulating filter media for folding is folded so as to alternately form ridges on the upstream side and the downstream side in the flow direction of dust-containing gas, and maintains the space between the upstream and downstream folding surfaces. In the electrostatic filtration dust collector consisting of a dust collecting section provided with a plurality of spacers for use in the above, the upstream side spacer and the downstream side spacer are conductive spacers, and A filter for an electrostatic filter dust collector, wherein the filters are adhered to opposite positions with a conductive adhesive and a high voltage is applied between the conductive spacers.
０〜６０００ｃｐｓの粘度を有する導電性接着剤を含浸
塗布した含浸性のある糸状体を，印加する電圧との関係
により適当な間隔をおいて接触させ，この絶縁性濾材を
１００〜３００℃，３０〜６０秒間の乾燥工程に入れ
て，絶縁性濾材に接触している導電性接着剤は，絶縁性
濾材に含浸接着させ，絶縁性濾材に接触していない導電
性接着剤は，接着力を有する程度に乾燥させ，この乾燥
工程の直後に，絶縁性濾材に対して含塵ガスの流れ方向
の上流側と下流側に稜線部分が形成されるように襞折り
加工を施して，濾材の相隣る折り畳み面に接着されてい
る同一の糸状体に含浸塗布された導電性接着剤同志を接
着させることにより，襞折り形態を維持するとともに，
濾材の相隣る各折り畳み面間の間隔を保持するスペーサ
ーを形成することを特徴とする請求項１記載の静電式濾
過集塵装置用フィルターの製法。2. The insulating filter medium is provided with 20 at opposite positions on the front and back.
Impregnating filaments impregnated with a conductive adhesive having a viscosity of 0 to 6000 cps are contacted at appropriate intervals depending on the relationship with the applied voltage. In the drying process for ~ 60 seconds, the conductive adhesive that is in contact with the insulating filter medium is impregnated and adhered to the insulating filter medium, and the conductive adhesive that is not in contact with the insulating filter medium has adhesive force. Immediately after this drying process, folds are applied to the insulating filter media so that ridges are formed on the upstream side and the downstream side of the dust-containing gas flow direction. The fold shape is maintained by adhering the conductive adhesives that are impregnated and applied to the same filaments that are adhered to the folding surface,
The method for producing a filter for an electrostatic filter / dust collector according to claim 1, further comprising forming a spacer that holds a space between the adjacent folding surfaces of the filter medium.
予備荷電するための荷電部と，該荷電部を通過した含塵
ガス中の荷電された浮遊粒子を電界の作用下において捕
集するための絶縁性濾材が含塵ガスの流れ方向の上流側
と下流側に稜線部分を交互に形成するように襞折りさ
れ，かつ，上流側と下流側の各折り畳み面間の間隔を保
持するための複数条のスペーサーを具備してなる集塵部
とからなる静電式濾過集塵装置において，上流側のスペ
ーサーが絶縁性スペーサーで，下流側のスペーサーが導
電性スペーサーであって，上記絶縁性濾材の表裏の相対
する位置に絶縁性スペーサーは絶縁性接着剤で，導電性
スペーサーは導電性接着剤でそれぞれ接着され，上記導
電性スペーサーの相互間に高電圧を印加するように構成
することを特徴とする静電式濾過集塵装置用フィルタ
ー。3. A charged portion for passing a dust-containing gas to precharge suspended particles therein, and a charged suspended particle in the dust-containing gas that has passed through the charged portion is collected under the action of an electric field. The insulating filter media for folding is folded so as to alternately form ridges on the upstream side and the downstream side in the flow direction of dust-containing gas, and maintains the space between the upstream and downstream folding surfaces. In the electrostatic filtration dust collector comprising a dust collecting part having a plurality of spacers for the above, the upstream spacer is an insulating spacer and the downstream spacer is a conductive spacer, Insulating spacers and insulating spacers are attached to opposite positions on the front and back sides of the conductive filter medium, respectively, with an insulating adhesive, and a high voltage is applied between the conductive spacers. Characterized by Filter for electrostatic filter dust collector.
の含塵ガスの流れ方向の下流側には，２００〜６０００
ｃｐｓの粘度を有する導電性接着剤を含浸塗布した含浸
性のある糸状体を印加する電圧との関係により適当な間
隔をおいて濾材に接触させ，この絶縁性濾材を１００〜
３００℃，３０〜６０秒間の乾燥工程に入れて，絶縁性
濾材に接触している導電性接着剤は絶縁性濾材に含浸接
着させ，絶縁性濾材に接触していない導電性接着剤は接
着力を有する程度に乾燥させ，次いで，フィルター体と
なったときの絶縁性濾材の含塵ガスの流れ方向の上流側
で上記導電性接着剤を含浸塗布した含浸性のある糸状体
に相対する位置に絶縁性接着剤を含浸塗布した含浸性の
ある糸状体を接触させ，この絶縁性濾材を１００〜３０
０℃，３０〜６０秒間の乾燥工程に入れて，絶縁性濾材
に接触している絶縁性接着剤は，既に含浸している上記
導電性接着剤の上流側を覆うように含浸接着させ，絶縁
性濾材に接触していない絶縁性接着剤及び上記導電性接
着剤は，接着力を有する程度に乾燥させ，この乾燥工程
の直後に絶縁性濾材に対して含塵ガスの流れ方向の上流
側と下流側に稜線部分が形成されるように襞折り加工を
施して，濾材の相隣る折り畳み面に接着塗布された導電
性接着剤同志及び絶縁性接着剤同志を接着させることに
より，襞折り形態を維持するとともに，濾材の相隣る各
折り畳み面間の間隔を保持するスペーサーを形成するこ
とを特徴とする請求項３記載の静電式濾過集塵装置用フ
ィルターの製法。4. 200 to 6000 is provided on the downstream side in the flow direction of the dust-containing gas of the insulating filter medium when it becomes a filter body.
A conductive adhesive having a viscosity of cps is impregnated and applied, and an impregnating filamentous material is brought into contact with the filter medium at appropriate intervals depending on the applied voltage.
Put in a drying process at 300 ° C for 30 to 60 seconds to impregnate and bond the conductive adhesive which is in contact with the insulating filter medium to the insulating filter medium, and the conductive adhesive which is not in contact with the insulating filter medium has adhesive force. To the position where it faces the impregnating filamentous material impregnated and coated with the above-mentioned conductive adhesive on the upstream side in the flow direction of the dust-containing gas of the insulating filter medium when it becomes a filter body. An insulative filamentous material impregnated with an insulating adhesive is brought into contact with the insulating filter medium to make it
In the drying step at 0 ° C for 30 to 60 seconds, the insulating adhesive that is in contact with the insulating filter medium is impregnated and adhered so as to cover the upstream side of the conductive adhesive that has already been impregnated. The insulating adhesive that is not in contact with the conductive filter medium and the conductive adhesive are dried to such an extent that they have an adhesive force, and immediately after this drying step, the insulating adhesive and the upstream side in the flow direction of the dust-containing gas are discharged from the insulating filter medium. The folds are formed by fold-folding so that the ridges are formed on the downstream side, and by adhering the conductive adhesive and the insulating adhesive that are adhesively applied to the adjacent folding surfaces of the filter medium. The method for manufacturing a filter for an electrostatic filter dust collector according to claim 3, further comprising: forming a spacer that maintains the distance between adjacent folding surfaces of the filter medium.
カーボンなどの導電性物質を添加し，更に難燃剤，天然
ゴム，架橋剤を添加してなる請求項２又は請求項４記載
の静電式濾過集塵装置用フィルターの製法。5. The electrostatic adhesive according to claim 2 or 4, wherein the conductive adhesive is formed by adding a conductive substance such as carbon to a water-soluble emulsion, and further adding a flame retardant, natural rubber, and a cross-linking agent. Method for manufacturing filter for dust collector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8871896A JP3705860B2 (en) | 1995-03-30 | 1996-03-18 | Filter for electrostatic filtration dust collector and its manufacturing method |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7-97749 | 1995-03-30 | ||
| JP9774995 | 1995-03-30 | ||
| JP8871896A JP3705860B2 (en) | 1995-03-30 | 1996-03-18 | Filter for electrostatic filtration dust collector and its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08323237A true JPH08323237A (en) | 1996-12-10 |
| JP3705860B2 JP3705860B2 (en) | 2005-10-12 |
Family
ID=26430070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8871896A Expired - Fee Related JP3705860B2 (en) | 1995-03-30 | 1996-03-18 | Filter for electrostatic filtration dust collector and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3705860B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012101223A (en) * | 2005-12-29 | 2012-05-31 | Environmental Management Confederation Inc | Conductive bead active field polarized media air cleaner |
| WO2021187801A1 (en) * | 2020-03-18 | 2021-09-23 | Samsung Electronics Co., Ltd. | Electrostatic dust collecting apparatus and method of manufacturing the same |
| KR20210117110A (en) * | 2020-03-18 | 2021-09-28 | 삼성전자주식회사 | Electrostatic Precipitator and Manufacturing Method Thereof |
-
1996
- 1996-03-18 JP JP8871896A patent/JP3705860B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012101223A (en) * | 2005-12-29 | 2012-05-31 | Environmental Management Confederation Inc | Conductive bead active field polarized media air cleaner |
| WO2021187801A1 (en) * | 2020-03-18 | 2021-09-23 | Samsung Electronics Co., Ltd. | Electrostatic dust collecting apparatus and method of manufacturing the same |
| KR20210117110A (en) * | 2020-03-18 | 2021-09-28 | 삼성전자주식회사 | Electrostatic Precipitator and Manufacturing Method Thereof |
| US11911777B2 (en) | 2020-03-18 | 2024-02-27 | Samsung Electronics Co., Ltd. | Electrostatic dust collecting apparatus and method of manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3705860B2 (en) | 2005-10-12 |
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