JPH1119431A - Incineration furnace waste gas treating filter - Google Patents
Incineration furnace waste gas treating filterInfo
- Publication number
- JPH1119431A JPH1119431A JP9182042A JP18204297A JPH1119431A JP H1119431 A JPH1119431 A JP H1119431A JP 9182042 A JP9182042 A JP 9182042A JP 18204297 A JP18204297 A JP 18204297A JP H1119431 A JPH1119431 A JP H1119431A
- Authority
- JP
- Japan
- Prior art keywords
- filter
- fiber
- ptfe
- waste gas
- titanium oxide
- 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.)
- Pending
Links
- 239000002912 waste gas Substances 0.000 title abstract 3
- 239000000835 fiber Substances 0.000 claims abstract description 35
- 230000001699 photocatalysis Effects 0.000 claims abstract description 15
- UHYPYGJEEGLRJD-UHFFFAOYSA-N cadmium(2+);selenium(2-) Chemical compound [Se-2].[Cd+2] UHYPYGJEEGLRJD-UHFFFAOYSA-N 0.000 claims abstract description 3
- 150000002736 metal compounds Chemical class 0.000 claims description 12
- 229920001343 polytetrafluoroethylene Polymers 0.000 abstract description 36
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract description 36
- 239000007789 gas Substances 0.000 abstract description 30
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 22
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 abstract description 18
- 239000000428 dust Substances 0.000 abstract description 11
- 239000000126 substance Substances 0.000 abstract description 10
- 230000003578 releasing effect Effects 0.000 abstract description 4
- -1 polytetrafluoroethylene Polymers 0.000 abstract description 2
- 229910000765 intermetallic Inorganic materials 0.000 abstract 3
- 229910017344 Fe2 O3 Inorganic materials 0.000 abstract 1
- 229910002370 SrTiO3 Inorganic materials 0.000 abstract 1
- 229910052980 cadmium sulfide Inorganic materials 0.000 abstract 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 abstract 1
- 229920005989 resin Polymers 0.000 description 20
- 239000011347 resin Substances 0.000 description 20
- 239000006185 dispersion Substances 0.000 description 8
- 239000000843 powder Substances 0.000 description 8
- 239000002245 particle Substances 0.000 description 6
- 229920000049 Carbon (fiber) Polymers 0.000 description 5
- 239000004917 carbon fiber Substances 0.000 description 5
- 230000005484 gravity Effects 0.000 description 5
- 238000000354 decomposition reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- 229920006026 co-polymeric resin Polymers 0.000 description 2
- 238000007720 emulsion polymerization reaction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000006748 scratching Methods 0.000 description 2
- 230000002393 scratching effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- PEVRKKOYEFPFMN-UHFFFAOYSA-N 1,1,2,3,3,3-hexafluoroprop-1-ene;1,1,2,2-tetrafluoroethene Chemical group FC(F)=C(F)F.FC(F)=C(F)C(F)(F)F PEVRKKOYEFPFMN-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 229910002367 SrTiO Inorganic materials 0.000 description 1
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical compound C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 238000009960 carding Methods 0.000 description 1
- 150000002013 dioxins Chemical class 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 125000005010 perfluoroalkyl group Chemical group 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、焼却炉排ガス処理
用フィルターに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an incinerator exhaust gas treatment filter.
【０００２】[0002]
【従来の技術】都市ごみの焼却炉等から発生する排ガス
には、一般的なばいじんの他に各種の有害ガスが含まれ
ており、特に最近問題となっているダイオキシン類も含
まれている。このため、環境改善の見地から前記排ガス
中の有害ガスの除去が要求されている。2. Description of the Related Art Exhaust gas generated from municipal solid waste incinerators and the like contains various harmful gases in addition to general soot and dust, and particularly includes dioxins which have recently become a problem. Therefore, removal of harmful gas in the exhaust gas is required from the viewpoint of environmental improvement.
【０００３】前記要求に応じ、焼却炉排ガス処理用フィ
ルターが使用されている。このフィルターには、耐熱
性、耐薬品性等が要求されることはもちろんであるが、
その他に、近年、帯電防止性も要求されるようになって
きている。これは、フィルターが帯電すると、その電荷
と排ガスとが反応するおそれがあるからである。[0003] In response to the above demand, incinerator exhaust gas treatment filters are used. Of course, this filter is required to have heat resistance, chemical resistance, etc.,
In addition, in recent years, antistatic properties have also been required. This is because when the filter is charged, the charge may react with the exhaust gas.
【０００４】焼却炉排ガス処理用フィルターとして、特
公平８−６２３６号公報にフェルト地のバッグフィルタ
ーが開示されている。このバッグフィルターは、フッ素
樹脂繊維と炭素繊維とが混繊されたフェルトが袋状に形
成されてフィルターとなったものである。このバッグフ
ィルターは、フッ素樹脂繊維と炭素繊維とを併用するこ
とにより、耐熱性と帯電防止性を向上させている。すな
わち、フッ素樹脂は、耐熱性に優れるが、帯電防止性に
劣るため、耐熱性および帯電防止性の双方を有する炭素
繊維を併用することで、前記両特性を確保するのであ
る。しかし、このバッグフィルターは、塵埃の剥離性が
不十分である。すなわち、焼却炉排ガス処理用に使用さ
れるバッグフィルターは、捕集した塵埃を逆洗により払
い落とす必要があり、このため塵埃の剥離性が要求され
る。しかし、フッ素樹脂繊維は剥離性が優れるが、炭素
繊維には剥離性は期待できない。剥離性を得るためには
炭素繊維の含有割合を低減すればよいが、今度は帯電防
止性が劣るようになる。As a filter for treating exhaust gas from an incinerator, Japanese Patent Publication No. 8-6236 discloses a bag filter on a felt ground. In this bag filter, a felt in which a fluororesin fiber and a carbon fiber are mixed is formed in a bag shape to form a filter. This bag filter has improved heat resistance and antistatic properties by using a combination of fluororesin fibers and carbon fibers. That is, the fluororesin is excellent in heat resistance, but inferior in antistatic property. Therefore, by using a carbon fiber having both heat resistance and antistatic property together, both of the above characteristics are ensured. However, this bag filter has insufficient dust releasability. That is, the bag filter used for treating the incinerator exhaust gas needs to remove the collected dust by backwashing, and is required to have a removability of the dust. However, fluororesin fibers have excellent releasability, but carbon fibers cannot be expected to have releasability. In order to obtain the releasability, the content ratio of the carbon fiber may be reduced, but this time, the antistatic property becomes inferior.
【０００５】[0005]
【発明が解決しようとする課題】そこで、本発明の目的
は、耐熱性、耐薬品性、帯電防止性を備え、さらに塵埃
の剥離性にも優れる焼却炉排ガス処理用フィルターを提
供することである。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an incinerator exhaust gas treatment filter having heat resistance, chemical resistance and antistatic properties, and also having excellent dust releasability. .
【０００６】[0006]
【課題を解決するための手段】前記目的を達成するため
に、本発明の焼却炉排ガス処理用フィルターは、光触媒
機能を有する金属化合物を含有するフッ素樹脂繊維で形
成されているという構成を有する。Means for Solving the Problems In order to achieve the above object, the filter for treating incinerator exhaust gas of the present invention has a constitution that it is formed of a fluororesin fiber containing a metal compound having a photocatalytic function.
【０００７】すなわち、フッ素樹脂繊維は、耐熱性、耐
薬品性、剥離性に優れるが、帯電防止性に劣る。このた
め、本発明では、これを解決する手段として、フッ素樹
脂に光触媒機能を有する金属化合物を含有させたのであ
る。金属化合物の含有により、フッ素樹脂繊維の表面抵
抗や体積抵抗が低下し、帯電が防止されるようになる。
そして、この金属光触媒は光触媒機能を有するため、本
発明の焼却炉排ガス処理用フィルターは、有害ガス等の
有機物を分解除去する機能をも有する。That is, fluororesin fibers are excellent in heat resistance, chemical resistance and peelability, but are inferior in antistatic properties. Therefore, in the present invention, as a means for solving this, a metal compound having a photocatalytic function is contained in the fluororesin. By containing the metal compound, the surface resistance and the volume resistance of the fluororesin fiber are reduced, and the charging is prevented.
Since the metal photocatalyst has a photocatalytic function, the filter for treating incinerator exhaust gas of the present invention also has a function of decomposing and removing organic substances such as harmful gases.
【０００８】前記光触媒機能を有する金属化合物として
は、ＴｉＯ2 、ＺｎＯ、Ｆｅ2 Ｏ3、ＣｄＳ、ＣｄＳｅ
およびＳｒＴｉＯ3 からなる群から選択された少なくと
も一つの金属化合物が好ましい。特に好ましくは、光触
媒機能が強力なＴｉＯ2 である。The metal compound having a photocatalytic function includes TiO 2 , ZnO, Fe 2 O 3 , CdS, CdSe.
At least one metal compound selected from the group consisting of and SrTiO 3 is preferred. Particularly preferred is TiO 2 having a strong photocatalytic function.
【０００９】[0009]
【００１０】[0010]
【発明の実施の形態】本発明で用いられるフッ素樹脂と
しては、例えば、乳化重合で得られるポリテトラフルオ
ロエチレン（ＰＴＦＥ）、テトラフルオロエチレン−ヘ
キサフルオロプロピレン共重合樹脂（ＦＥＰ）、テトラ
フルオロエチレン−パーフルオロアルキルビニルエーテ
ル共重合樹脂（ＰＦＡ）などがあげられる。このなかで
も、化学的安定性に優れたＰＴＦＥが好ましい。DETAILED DESCRIPTION OF THE INVENTION The fluororesin used in the present invention includes, for example, polytetrafluoroethylene (PTFE), tetrafluoroethylene-hexafluoropropylene copolymer resin (FEP), tetrafluoroethylene Perfluoroalkyl vinyl ether copolymer resin (PFA) and the like. Among them, PTFE having excellent chemical stability is preferable.
【００１１】つぎに、光触媒機能を有する金属化合物
は、先に例示した通りである。また、酸化チタンを例に
とると、好ましいのは、アナターゼ型の粉末であり、そ
の粒径は、通常、０．００１〜５０μｍ、好ましくは
０．００１〜１０μｍである。Next, the metal compound having a photocatalytic function is as exemplified above. In the case of titanium oxide as an example, an anatase type powder is preferable, and the particle size is usually 0.001 to 50 μm, preferably 0.001 to 10 μm.
【００１２】つぎに、光触媒機能を有する金属酸化物を
含有するフッ素樹脂繊維の製造例を、ＰＴＦＥ繊維を例
にとり説明する。Next, a production example of a fluororesin fiber containing a metal oxide having a photocatalytic function will be described with reference to a PTFE fiber as an example.
【００１３】すなわち、まず、ＰＴＦＥ樹脂の粉末（乳
化重合で得られたＰＴＦＥ樹脂粉末が好ましい）と押出
助剤（例えば、炭化水素等）とを混合し、この混合物を
所定形状に押出成形し、この成形物を圧延してシート状
にし、先の押出助剤を蒸発除去して、未焼成ＰＴＦＥシ
ートを作製する。That is, first, PTFE resin powder (preferably PTFE resin powder obtained by emulsion polymerization) and an extrusion aid (for example, hydrocarbon) are mixed, and the mixture is extruded into a predetermined shape. This molded product is rolled into a sheet, and the above-mentioned extrusion aid is removed by evaporation to produce an unfired PTFE sheet.
【００１４】他方、酸化チタン含有ＰＴＦＥ樹脂分散体
を調製する。すなわち、ＰＴＦＥのディスパージョン
（ＰＴＦＥ樹脂固形分：６０重量％含有）に酸化チタン
粉体を添加して混合する。この割合は、ＰＴＦＥ樹脂１
００重量部に対して、酸化チタン粉体が１〜１５０重量
部の範囲である。On the other hand, a PTFE resin dispersion containing titanium oxide is prepared. That is, a titanium oxide powder is added to a dispersion of PTFE (containing PTFE resin solid content: 60% by weight) and mixed. This ratio is PTFE resin 1
The titanium oxide powder is in the range of 1 to 150 parts by weight with respect to 00 parts by weight.
【００１５】この酸化チタン含有ＰＴＦＥ樹脂分散体を
先の未焼成ＰＴＦＥシートの片面または両面に塗布し、
前記ＰＴＦＥ樹脂分散体の媒体を蒸発除去して乾燥し、
未焼成ＰＴＦＥシートの上に酸化チタン含有ＰＴＦＥ樹
脂層を設ける。なお、この工程以降の工程により、得ら
れる繊維の比重が変化する。[0015] The titanium oxide-containing PTFE resin dispersion is applied to one or both sides of the unfired PTFE sheet,
Evaporating and drying the medium of the PTFE resin dispersion,
A titanium oxide-containing PTFE resin layer is provided on the unfired PTFE sheet. In addition, the specific gravity of the obtained fiber changes by the processes after this process.
【００１６】すなわち、未焼成ＰＴＦＥシートと酸化チ
タン含有ＰＴＦＥ樹脂層との積層体を、延伸処理する
が、その延伸条件により、比重が異なってくる。まず、
前記積層体を、ＰＴＦＥ樹脂の融点以上に加熱焼成し、
その後延伸すれば、積層シートの比重は２．０以上とな
る。That is, a laminate of an unfired PTFE sheet and a titanium oxide-containing PTFE resin layer is subjected to stretching treatment, and the specific gravity differs depending on the stretching conditions. First,
The laminate is heated and fired at a temperature equal to or higher than the melting point of the PTFE resin,
After stretching, the specific gravity of the laminated sheet becomes 2.0 or more.
【００１７】一方、前記積層体をＰＴＦＥ樹脂の融点以
下で延伸した後、ＰＴＦＥ樹脂の融点以上に加熱焼成す
れば、比重２．０以下、好ましくは比重１．５以下の積
層シートとなり、多孔質シートとなる。On the other hand, if the laminate is stretched below the melting point of the PTFE resin and then fired at a temperature above the melting point of the PTFE resin, a laminated sheet having a specific gravity of 2.0 or less, preferably 1.5 or less, is obtained. It becomes a sheet.
【００１８】つぎに、この積層延伸シートを繊維化す
る。この繊維化の手段としては、例えば、前記積層シー
トを多数の針先を有する引掻き具で解繊する方法があ
る。前記引掻き具としては、例えば、金属針を多数備え
たブラシのようなものがあげられる。この針は特別な物
である必要はなく、針径の細いものなら特に制限されな
い。なお、この解繊により得られる繊維の繊維径は、前
記積層延伸シートの分子配向度に依存するが、通常、繊
維径は平均３０μｍ以下であり、好ましくは５〜５０μ
ｍの範囲である。また、この繊維は、幹繊維から枝状の
側繊維が多数分岐した形状であり、捲縮性に富んだ繊維
である。この様な繊維は交絡性に富むため、例えば、繊
維同士を針で絡ませることが容易であり、容易にフェル
ト化することが可能である。したがって、前記解繊によ
り得られた繊維を、ニードルパンチ等で交絡させてフェ
ルト化すれば、用意にフィルターに加工できる。この時
のフェルトの目付量は、通常、３００〜１０００ｇ／ｍ
2 の範囲であり、厚みは、通常、０．５〜５ｍｍの範囲
である。このようにして得られたフィルターの繊維表面
では、光触媒粒機能を有する金属化合物が露出してお
り、空気中の有害ガスが低濃度であっても効率的に反応
し、これを分解して無害化できる。Next, the laminated stretched sheet is fiberized. As a means of this fiberization, for example, there is a method of fibrillating the laminated sheet with a scratching tool having a large number of needle points. Examples of the scratching tool include a brush having a large number of metal needles. The needle does not need to be special and is not particularly limited as long as the needle diameter is small. The fiber diameter of the fiber obtained by this defibration depends on the degree of molecular orientation of the laminated stretched sheet, but the fiber diameter is usually 30 μm or less on average, and preferably 5 to 50 μm.
m. Further, this fiber has a shape in which a large number of branch side fibers are branched from the trunk fiber, and is a fiber having a high crimpability. Since such fibers are rich in confounding properties, for example, the fibers can be easily entangled with a needle, and can be easily felted. Therefore, if the fiber obtained by the defibration is entangled with a needle punch or the like to form a felt, the fiber can be easily processed into a filter. The weight of felt at this time is usually 300 to 1000 g / m.
2 , and the thickness is usually in the range of 0.5 to 5 mm. On the fiber surface of the filter obtained in this way, a metal compound having a photocatalytic particle function is exposed, and even if the concentration of harmful gas in the air is low, it reacts efficiently and decomposes it to make it harmless. Can be
【００１９】本発明の焼却炉排ガス処理用フィルターの
性能は、特に制限するものではないが、圧力損失が、通
常、５０〜３００ｍｍＨ2Ｏであり、捕集効率が、通
常、９０〜９９．９５％である。The performance of the incinerator exhaust gas treatment filter of the present invention is not particularly limited, but the pressure loss is usually 50 to 300 mmH 2 O, and the collection efficiency is usually 90 to 99.95. %.
【００２０】[0020]
【実施例】つぎに、実施例について説明する。Next, an embodiment will be described.
【００２１】（実施例１）乳化重合で得られたＰＴＦＥ
樹脂（平均粒径：０．２μｍ）にナフサを２４重量％の
割合で攪拌混合した。この混合体を円筒状に予備成形
し、この予備成形体を押出成形して、さらに圧延し、
０．１ｍｍの厚さのシートを得た。この圧延シートを２
８０℃に加熱してナフサを蒸発除去し、ＰＴＦＥシート
を作製した。他方、ＰＴＦＥディスパージョン（ＰＴＦ
Ｅ樹脂固形分：６０重量％含有）と酸化チタン粉体（粒
径：０．００７μｍ）とを、ＰＴＦＥ樹脂１００重量部
に対し酸化チタン６６重量部の割合で、混合した（ＰＴ
ＦＥ樹脂中の酸化チタンの占める割合は４０重量％）。
そして、前記ＰＴＦＥシートの両面に、酸化チタン含有
ＰＴＦＥディスパージョンを塗布し、３６０℃で３分間
焼成して、比重２．１２のＰＴＦＥ積層シートを得た。
このシートを３５０℃に加熱しながら長手方向に３倍に
延伸した。Example 1 PTFE obtained by emulsion polymerization
Naphtha was stirred and mixed with the resin (average particle size: 0.2 μm) at a ratio of 24% by weight. This mixture is preformed into a cylindrical shape, and the preformed product is extruded and further rolled,
A sheet having a thickness of 0.1 mm was obtained. This rolled sheet is
Naphtha was removed by evaporation by heating to 80 ° C. to produce a PTFE sheet. On the other hand, PTFE dispersion (PTFE
E resin solid content: 60% by weight) and titanium oxide powder (particle size: 0.007 μm) were mixed at a ratio of 66 parts by weight of titanium oxide to 100 parts by weight of PTFE resin (PT
The proportion of titanium oxide in the FE resin is 40% by weight).
Then, a titanium oxide-containing PTFE dispersion was applied to both surfaces of the PTFE sheet, and baked at 360 ° C. for 3 minutes to obtain a PTFE laminated sheet having a specific gravity of 2.12.
This sheet was stretched three times in the longitudinal direction while being heated to 350 ° C.
【００２２】この積層延伸シートを、多数の針を備えた
ブラシ（針径：０．５ｍｍ）で引掻いて繊維を得た。こ
の繊維の繊維径は１０μｍであった。この繊維をカード
機で調整し、その後ニードルパンチ機でフェルトに加工
し、これをフィルターとした。前記フェルトの重量（目
付量）は７００ｇ／ｍ2 であり、厚さ２．５ｍｍであっ
た。The laminated stretched sheet was scratched with a brush (needle diameter: 0.5 mm) having a large number of needles to obtain fibers. The fiber diameter of this fiber was 10 μm. The fibers were adjusted with a carding machine and then processed into felt with a needle punching machine, which was used as a filter. The weight (weight per unit area) of the felt was 700 g / m 2 and the thickness was 2.5 mm.
【００２３】また、この繊維の帯電防止性（表面抵抗）
は、解繊前の前記積層延伸シートの体積抵抗を測定し、
この値で評価した。その結果、前記表面抵抗率は１０2
Ωあり、得られたフィルターは優れた帯電防止効果を有
すると評価できた。The antistatic property (surface resistance) of this fiber
Measures the volume resistance of the laminated stretched sheet before defibration,
Evaluation was made based on this value. As a result, the surface resistivity was 10 2
Ω, and the obtained filter was evaluated as having an excellent antistatic effect.
【００２４】（実施例２）酸化チタン含有ＰＴＦＥのデ
ィスパージョンの調製において、ＰＴＦＥ樹脂１００重
量部に対して、酸化チタン粉体（粒径：０．００７μ
ｍ）を１１重量部添加し混合した以外は（ＰＴＦＥ樹脂
中の酸化チタンの占める割合は１０重量％）、実施例１
と同様にしてフィルターを作製した。このフィルターに
ついて、実施例１と同様にして表面低効率を測定した結
果、１０3 Ωであり、得られたフィルターは優れた帯電
防止効果を有すると評価できた。Example 2 In the preparation of a dispersion of PTFE containing titanium oxide, titanium oxide powder (particle size: 0.007 μm) was added to 100 parts by weight of the PTFE resin.
Example 1 except that 11 parts by weight of m) were added and mixed (the proportion of titanium oxide in the PTFE resin was 10% by weight).
A filter was produced in the same manner as described above. This filter, the result of measuring the surface low efficiency in the same manner as in Example 1, a 10 3 Omega, resulting filters could be evaluated as having an excellent antistatic effect.
【００２５】（実施例３）酸化チタン含有ＰＴＦＥのデ
ィスパージョンの調製において、ＰＴＦＥ樹脂１００重
量部に対して、酸化チタン粉体（粒径：０．００７μ
ｍ）を３重量部添加し混合した以外は（ＰＴＦＥ樹脂中
の酸化チタンの占める割合は３重量％）、実施例１と同
様にしてフィルターを作製した。このフィルターについ
て、実施例１と同様にして表面抵抗率を測定した結果、
１０4 Ωであり、得られたフィルターは優れた帯電防止
効果を有すると評価できた。Example 3 In the preparation of a dispersion of PTFE containing titanium oxide, titanium oxide powder (particle size: 0.007 μm) was added to 100 parts by weight of the PTFE resin.
m) was added and mixed (the proportion of titanium oxide in the PTFE resin was 3% by weight), and a filter was prepared in the same manner as in Example 1. As a result of measuring the surface resistivity of this filter in the same manner as in Example 1,
It was 10 4 Ω, and the obtained filter was evaluated as having an excellent antistatic effect.
【００２６】このようにして得られた実施例１〜３のフ
ィルターについて、以下に示す方法により、有害ガスの
分解試験および塵埃（ダスト）の離型性を評価した。こ
の結果を、下記の表１に示す。なお、塵埃の離型は、フ
ィルター設置の装置内に組み込まれた塵埃の払い落し装
置により行われるため、塵埃の離型性は相対的評価とな
る。The filters of Examples 1 to 3 thus obtained were evaluated for harmful gas decomposition test and dust releasability by the following methods. The results are shown in Table 1 below. In addition, since the release of dust is performed by the dust removing device incorporated in the device in which the filter is installed, the releasability of the dust is a relative evaluation.
【００２７】（有害ガス分解試験）有害ガスとして硫化
水素を用いた。すなわち、密閉容器に、フィルターを配
置し、硫化水素ガスを初期濃度５００ｐｐｍとなるよう
に導入した。そして、光源として紫外線ランプを用い、
２Ｗ／ｃｍ2 の条件で前記フィルターに照射した。そし
て、照射３０分後にガスクロマトグラフィーを用いて硫
化水素ガス濃度を測定した。(Hazardous gas decomposition test) Hydrogen sulfide was used as a harmful gas. That is, a filter was arranged in a closed container, and hydrogen sulfide gas was introduced so as to have an initial concentration of 500 ppm. And, using an ultraviolet lamp as a light source,
The filter was irradiated under the condition of 2 W / cm 2 . Then, 30 minutes after irradiation, the concentration of hydrogen sulfide gas was measured using gas chromatography.
【００２８】[0028]
【表１】 [Table 1]
【００２９】前記表１の結果から、実施例のフィルター
は、帯電防止性に優れる他、塵埃の離型性にも優れ、ま
た有害ガスの分解性にも優れた効果を示したことが分か
る。From the results shown in Table 1, it can be seen that the filters of Examples have excellent antistatic properties, excellent releasing properties of dust, and excellent decomposability of harmful gases.
【００３０】[0030]
【発明の効果】以上のように、本発明の焼却炉排ガス処
理用フィルターは、光触媒機能を有する金属化合物を含
有するフッ素樹脂繊維で形成されている。すなわち、耐
熱性、耐薬品性および剥離性に優れるフッ素樹脂繊維
に、光触媒機能を有する金属化合物を含有させることに
より、優れた帯電防止性および有害ガス分解機能がさら
に付与される。この結果、このフッ素樹脂繊維を用いて
形成された本発明の焼却炉用排ガス処理用フィルター
は、優れた耐熱性、耐薬品性、剥離性および帯電防止性
並びに有害ガス分解機能を有するようになる。したがっ
て、本発明の焼却炉排ガス処理用フィルターの適用によ
り、例えば、都市ごみの焼却炉等において、排ガス中か
ら有害ガスを効率的にかつ安全に除去できるようにな
り、環境問題の改善に貢献できる。As described above, the filter for treating incinerator exhaust gas of the present invention is formed of a fluororesin fiber containing a metal compound having a photocatalytic function. That is, by adding a metal compound having a photocatalytic function to a fluororesin fiber having excellent heat resistance, chemical resistance and peelability, excellent antistatic properties and harmful gas decomposition functions are further imparted. As a result, the incinerator exhaust gas treatment filter of the present invention formed using this fluororesin fiber has excellent heat resistance, chemical resistance, peelability and antistatic properties, and a harmful gas decomposition function. . Therefore, by applying the filter for treating incinerator exhaust gas of the present invention, for example, in an incinerator of municipal waste, it becomes possible to efficiently and safely remove harmful gas from exhaust gas, which can contribute to improvement of environmental problems. .
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｄ０１Ｆ 6/12 Ｄ０４Ｈ 1/42 Ｎ Ｄ０４Ｈ 1/42 Ｘ Ｂ０１Ｄ 53/36 ＺＡＢＪ ──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 6 Identification code FI D01F 6/12 D04H 1/42 N D04H 1/42 X B01D 53/36 ZABJ
Claims (2)
るフッ素樹脂繊維で形成された焼却炉排ガス処理用フィ
ルター。1. An incinerator exhaust gas treatment filter formed of a fluororesin fiber containing a metal compound having a photocatalytic function.
Ｏ2 、ＺｎＯ、Ｆｅ2Ｏ3 、ＣｄＳ、ＣｄＳｅおよびＳ
ｒＴｉＯ3 からなる群から選択される少なくとも一つの
金属化合物である請求項１記載の焼却炉排ガス処理用フ
ィルター。2. The metal compound having a photocatalytic function is Ti
O 2 , ZnO, Fe 2 O 3 , CdS, CdSe and S
At least one of the incinerator exhaust gas treatment filter according to claim 1, wherein the metal compound is selected from the group consisting of rTiO 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9182042A JPH1119431A (en) | 1997-07-08 | 1997-07-08 | Incineration furnace waste gas treating filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9182042A JPH1119431A (en) | 1997-07-08 | 1997-07-08 | Incineration furnace waste gas treating filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1119431A true JPH1119431A (en) | 1999-01-26 |
Family
ID=16111334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9182042A Pending JPH1119431A (en) | 1997-07-08 | 1997-07-08 | Incineration furnace waste gas treating filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1119431A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002011312A (en) * | 2000-06-29 | 2002-01-15 | Nitto Denko Corp | Incinerator exhaust gas treatment filter and its production method |
| US6992385B2 (en) | 2003-02-28 | 2006-01-31 | Renesas Technology Corp. | Semiconductor device, a method of manufacturing the same and an electronic device |
| JP2014077224A (en) * | 2012-09-24 | 2014-05-01 | Toray Ind Inc | Method for producing photocatalyst particle-carrying polytetrafluoroethylene fiber |
| CN106757777A (en) * | 2016-11-29 | 2017-05-31 | 青岛海之星生物科技有限公司 | A kind of Enteromorpha activated carbon/dioxide composite nanofiber film and preparation method thereof |
-
1997
- 1997-07-08 JP JP9182042A patent/JPH1119431A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002011312A (en) * | 2000-06-29 | 2002-01-15 | Nitto Denko Corp | Incinerator exhaust gas treatment filter and its production method |
| US6992385B2 (en) | 2003-02-28 | 2006-01-31 | Renesas Technology Corp. | Semiconductor device, a method of manufacturing the same and an electronic device |
| US7728416B2 (en) | 2003-02-28 | 2010-06-01 | Renesas Technology Corp. | Semiconductor device, a method of manufacturing the same and an electronic device |
| US8022518B2 (en) | 2003-02-28 | 2011-09-20 | Renesas Electronics Corporation | Semiconductor device having a sealing body and partially exposed conductors |
| US8698289B2 (en) | 2003-02-28 | 2014-04-15 | Renesas Electronics Corporation | Semiconductor device, a method of manufacturing the same and an electronic device |
| JP2014077224A (en) * | 2012-09-24 | 2014-05-01 | Toray Ind Inc | Method for producing photocatalyst particle-carrying polytetrafluoroethylene fiber |
| CN106757777A (en) * | 2016-11-29 | 2017-05-31 | 青岛海之星生物科技有限公司 | A kind of Enteromorpha activated carbon/dioxide composite nanofiber film and preparation method thereof |
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