JPH0732863B2 - Waste ozone treatment method for corona discharger - Google Patents
Waste ozone treatment method for corona dischargerInfo
- Publication number
- JPH0732863B2 JPH0732863B2 JP1106873A JP10687389A JPH0732863B2 JP H0732863 B2 JPH0732863 B2 JP H0732863B2 JP 1106873 A JP1106873 A JP 1106873A JP 10687389 A JP10687389 A JP 10687389A JP H0732863 B2 JPH0732863 B2 JP H0732863B2
- Authority
- JP
- Japan
- Prior art keywords
- ozone
- catalyst
- corona discharger
- exhaust passage
- group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims description 72
- 238000000034 method Methods 0.000 title claims description 15
- 239000002699 waste material Substances 0.000 title claims description 10
- 239000003054 catalyst Substances 0.000 claims description 42
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 21
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 239000000843 powder Substances 0.000 claims description 6
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910052763 palladium Inorganic materials 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 229910052703 rhodium Inorganic materials 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 238000000354 decomposition reaction Methods 0.000 description 15
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000010936 titanium Substances 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 229910010413 TiO 2 Inorganic materials 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000000499 gel Substances 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- -1 dried and calcined Chemical compound 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(2+);dinitrate Chemical compound [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910000349 titanium oxysulfate Inorganic materials 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明はコロナ放電器からの廃オゾンを処理する方法に
関し、詳細には電子写真プロセスを用いた複写機、レー
ザープリンタ，ファクシミリ等に内蔵されたコロナ放電
器の近傍で発生するオゾンを触媒によって接触分解処理
する方法に関するものである。Description: TECHNICAL FIELD The present invention relates to a method for treating waste ozone from a corona discharger, and more specifically, it is incorporated in a copying machine, a laser printer, a facsimile, etc. using an electrophotographic process. The present invention also relates to a method for catalytically decomposing ozone generated near a corona discharger with a catalyst.
［従来の技術］ 近年、電子写真プロセスを用いた複写機、レーザープリ
ンタ，ファクシミリ等の様にコロナ放電器の内蔵した各
種電気製品が広く普及しつつあり、その使用頻度が更に
多くなる傾向を示している。ところがコロナ放電器近傍
では、コロナ放電によって空気中の酸素がオゾンの形態
となり、このオゾンは環境衛生上無視できない状況にあ
る。オゾンそれ自体は消毒，漂白，酸化等の各種用途に
利用できるものであるが、複写機等から発生するオゾン
は、その臭いが不快感をもたらすばかりでなく、人体に
対する毒作用も強く、ある濃度以上になると呼吸器を侵
し、またたとえ微量であっても長時間吸入するときわめ
て有害である。[Prior Art] In recent years, various electric products having a built-in corona discharger such as a copying machine, a laser printer, and a facsimile using an electrophotographic process are becoming widespread, and the frequency of their use is increasing. ing. However, near the corona discharger, oxygen in the air becomes ozone in the form of ozone due to corona discharge, and this ozone is in a situation that cannot be ignored in terms of environmental hygiene. Although ozone itself can be used for various purposes such as disinfection, bleaching, and oxidation, ozone generated from copiers, etc., not only causes unpleasant odor, but also has a strong toxic effect on the human body. If it becomes more than the above, it will affect the respiratory organs, and even if a minute amount, it is extremely harmful if inhaled for a long time.
複写機等から発生するオゾンを処理する方法としては、
これまで（１）活性炭による処理、（２）オゾン分解触
媒による処理等が実施されてきた。しかしながら活性炭
による処理の場合は、活性炭とオゾンとの反応機構の関
係上、活性炭が早期に酸化消耗してしまうことから寿命
が短く、活性炭を頻繁に補充する頻わしさがある。また
オゾン分解触媒を使用する場合には、コストや圧損の関
係から使用する触媒量に限界があり、廃オゾンを完全に
処理できないのが実情である。As a method of treating ozone generated from a copying machine,
So far, (1) treatment with activated carbon, (2) treatment with ozone decomposition catalyst, etc. have been carried out. However, in the case of treatment with activated carbon, due to the reaction mechanism between activated carbon and ozone, the activated carbon is consumed by oxidation at an early stage, resulting in a short life and frequent replenishment of activated carbon. Further, when an ozone decomposition catalyst is used, the amount of catalyst used is limited due to cost and pressure loss, and it is the actual situation that waste ozone cannot be completely treated.
［発明が解決しようとする課題］ 本発明はこうした状況のもとでなされたものであって、
その目的は、複写機等から発生する廃オゾンを長期に亘
って効率良く分解除去することのできる廃オゾン処理方
法を提供することにある。[Problems to be Solved by the Invention] The present invention has been made under these circumstances.
An object thereof is to provide a waste ozone treatment method capable of efficiently decomposing and removing waste ozone generated from a copying machine or the like for a long period of time.
［課題を解決する為の手段］ 上記目的を達成し得た本発明とは、コロナ放電器から発
生するオゾンを処理するに当たり、コロナ放電器のオゾ
ン発生部に臨んで排気通路を設けると共に、該排気通路
の途中に、下記（ａ）〜（ｃ）の成分からなり、且つ直
接通電加熱し得る構成としたオゾン分解触媒を設け、前
記コロナ放電器近傍のオゾン含有空気を前記オゾン分解
触媒に導いてオゾンを分解する点に要旨を有するコロナ
放電器の廃オゾン処理方法である。[Means for Solving the Problems] According to the present invention that has achieved the above object, in treating ozone generated from a corona discharger, an exhaust passage is provided facing the ozone generating portion of the corona discharger, and An ozone decomposing catalyst composed of the following components (a) to (c) and capable of being directly energized and heated is provided in the middle of the exhaust passage, and ozone-containing air in the vicinity of the corona discharger is guided to the ozone decomposing catalyst. It is a method for treating waste ozone of a corona discharger, which is characterized in that it decomposes ozone by means of ozone.
（ａ）Ti,Si,AlおよびZrよりなる群から選択される１種
または２種以上の元素からなる触媒成分、 （ｂ）Mn,Fe,Co,Ni,Ag,Au,Pt,PdおよびRhよりなる群か
ら選択される１種または２種以上の元素からなる触媒成
分、 （ｃ）金属粉，金属繊維，グラファイトおよび活性炭よ
りなる群から選択される１種または２種以上の導電体。(A) a catalyst component consisting of one or more elements selected from the group consisting of Ti, Si, Al and Zr, (b) Mn, Fe, Co, Ni, Ag, Au, Pt, Pd and Rh A catalyst component consisting of one or more elements selected from the group consisting of (c) one or more conductors selected from the group consisting of metal powder, metal fibers, graphite and activated carbon.
［作用］ 本発明者らは、廃オゾン処理の効率を高めるという観点
のもとで様々な角度から検討を加えたところ、まず次の
様な知見が得られた。[Operation] The inventors of the present invention have studied from various angles from the viewpoint of increasing the efficiency of waste ozone treatment, and have obtained the following findings.
これまでの廃オゾン処理では、複写機の排気口付近でオ
ゾンの分解処理を行っているのが一般的であり、この様
な構成ではコロナ放電器から発生したオゾンは拡散し希
釈された状態で処理されることになる。ところがオゾン
が希釈されて処理風量が多くなると、オゾン分解触媒を
用いたとしても、オゾンを完全に処理することは困難で
ある。すなわち希釈された状態のオゾンを分解するには
触媒の分解能力を上げる必要があるが、触媒層の圧損
（圧損が大きくなると風量が減少し、除熱効果が悪くな
る）、触媒設置スペース、触媒コスト上の問題等からし
て、触媒使用量を増加させるにも限界があり、従ってオ
ゾン処理能力にも限界生じる。こうしたことが従来技術
でのオゾン処理能力の限界を決定しているものと考えら
れた。In conventional waste ozone treatment, ozone is generally decomposed near the exhaust port of the copying machine.With this configuration, ozone generated from the corona discharger is diffused and diluted. Will be processed. However, when ozone is diluted and the amount of treated air increases, it is difficult to completely treat ozone even if an ozone decomposition catalyst is used. That is, in order to decompose the diluted ozone, it is necessary to increase the decomposition ability of the catalyst, but the pressure loss of the catalyst layer (when the pressure loss increases, the air volume decreases, the heat removal effect deteriorates), the catalyst installation space, the catalyst There is a limit in increasing the amount of the catalyst used due to cost problems and the like, and thus the ozone treatment capacity also has a limit. It was considered that this determines the limit of ozone treatment capacity in the conventional technology.
そこで本発明者らは、オゾンが希釈されていない状態で
オゾンを分解すればよいとの着想のもとで更に研究を重
ねた結果、オゾン発生場所付近の空気を選択的に吸引
し、オゾンが拡散・希釈される前に処理すればよいと考
え、上記構成を採用することにによってオゾン分解処理
能力を向上し得ることを見出した。即ち既述の構成を採
用することによって、処理風量を可及的に少なくするこ
とがき、触媒にかかる負担が低減され、廃オゾンの処理
能力を一層向上させることができたのである。Therefore, as a result of further research based on the idea that ozone should be decomposed in a state where ozone is not diluted, the inventors selectively sucked air in the vicinity of the place where ozone was generated, It was thought that the treatment should be carried out before it is diffused / diluted, and it was found that the ozone decomposition treatment capacity can be improved by adopting the above constitution. That is, by adopting the configuration described above, the amount of treated air could be reduced as much as possible, the load on the catalyst was reduced, and the treatment capacity of waste ozone could be further improved.
一方、本発明者らは触媒自体のオゾン分解能力を向上さ
せるという観点からも研究を進めてきた。現在提案され
ているオゾン分解能力の優れた触媒であっても、常温に
おいては長期に亘ってオゾンを完全に処理することは困
難であった。ところが本発明者らの研究によると、使用
するオゾン分解触媒を直接通電加熱し得る構成にすると
共に、該触媒を通電加熱しながら処理すれば、長期に亘
って安定したオゾン処理効果が発揮されることを知っ
た。またこの様な構成であれば、直接通電加熱を触媒の
再生に利用することも可能である。例えば常温である一
定時間オゾン分解を行い、触媒の活性が低下する前に直
接通電加熱して触媒を再生し、再び常温でオゾン分解を
行う。この様な手順の繰り返しによっても長期に亘って
高いオゾン処理活性を維持できるのである。On the other hand, the present inventors have conducted research from the viewpoint of improving the ozone decomposing ability of the catalyst itself. Even with the currently proposed catalysts having excellent ozone decomposing ability, it was difficult to completely treat ozone for a long period of time at room temperature. However, according to the research conducted by the present inventors, if the ozone decomposition catalyst to be used is configured to be capable of being directly heated by electricity, and the catalyst is treated while being electrically heated, a stable ozone treatment effect is exhibited for a long period of time. I knew that. Further, with such a configuration, it is possible to utilize direct electric heating for regeneration of the catalyst. For example, ozone is decomposed at room temperature for a certain period of time, and before the activity of the catalyst is lowered, the catalyst is regenerated by directly heating the catalyst, and ozone is decomposed again at room temperature. By repeating such a procedure, it is possible to maintain a high ozone treatment activity for a long period of time.
この様な触媒としては、下記（ａ）〜（ｃ）の成分から
なるものとする必要がある。Such a catalyst must be composed of the following components (a) to (c).
（ａ）Ti,Si,AlおよびZrよりなる群から選択される１種
または２種以上の元素からなる触媒成分、 （ｂ）Mn,Fe,Co,Ni,Ag,Au,Pt,PdおよびRhよりなる群か
ら選択される１種または２種以上の元素からなる触媒成
分、 （ｃ）金属粉，金属繊維，グラファイトおよび活性炭よ
りなる群から選択される１種または２種以上の導電体。(A) a catalyst component consisting of one or more elements selected from the group consisting of Ti, Si, Al and Zr, (b) Mn, Fe, Co, Ni, Ag, Au, Pt, Pd and Rh A catalyst component consisting of one or more elements selected from the group consisting of (c) one or more conductors selected from the group consisting of metal powder, metal fibers, graphite and activated carbon.
以下本発明を実施例によって更に詳細に説明するが、下
記実施例は本発明を限定する性質のものではなく、前・
後記の趣旨に徴して設計変更することはいずれも本発明
の技術的範囲に含まれるものである。Hereinafter, the present invention will be described in more detail with reference to Examples, but the following Examples are not of a nature limiting the present invention.
Any design changes made within the spirit of the later description are included in the technical scope of the present invention.
［実施例］ 第１図は本発明方法を実施する為の装置例を示す概略説
明図であり、１は感光体ドラム,2はコロナ放電器,2aは
コロナ放電用ワイヤ,3は排気通路,4はオゾン分解触媒,5
は排気ファン,6は金属シールドである。[Embodiment] FIG. 1 is a schematic explanatory view showing an example of an apparatus for carrying out the method of the present invention. 1 is a photosensitive drum, 2 is a corona discharger, 2a is a corona discharge wire, 3 is an exhaust passage, 4 is an ozone decomposition catalyst, 5
Is an exhaust fan, and 6 is a metal shield.
上記構成において、コロナ放電器２で発生したオゾンは
空気と共に、排気ファン５によって吸引され、排気通路
３を通って、該排気通路５の途中に設けたオゾン分解触
媒４に導かれる。そしてオゾンはオゾン分解触媒４で分
解除去され、オゾンを含有しない空気が系外へ排出され
る。尚排気ファン５の能力はコロナ放電器２近傍のオゾ
ン含有空気を触媒４に導くだけの最小限の吸引力は必要
であるが、オゾンが拡散しない程度にできるだけ抑える
のが好ましい。In the above structure, ozone generated in the corona discharger 2 is sucked together with air by the exhaust fan 5, and is guided through the exhaust passage 3 to the ozone decomposition catalyst 4 provided in the exhaust passage 5. Then, ozone is decomposed and removed by the ozone decomposition catalyst 4, and air containing no ozone is discharged to the outside of the system. The exhaust fan 5 needs to have a minimum suction force for guiding the ozone-containing air in the vicinity of the corona discharger 2 to the catalyst 4, but it is preferable to suppress it so that ozone does not diffuse.
本発明者らの実験によると、後述のオゾン分解触媒を直
接通電して加熱して、該触媒の温度を120℃程度に維持
しつつオゾンを触媒に導いたところ、長期に亘って安定
したオゾン分解が達成された。According to the experiments by the present inventors, when the ozone decomposition catalyst described later was directly energized and heated, and the ozone was guided to the catalyst while maintaining the temperature of the catalyst at about 120 ° C., ozone which was stable for a long period of time was obtained. Decomposition has been achieved.
尚このとき使用した触媒は次の様にして調整した。The catalyst used at this time was prepared as follows.
TiおよびSiからなる複合酸化物を以下の手順で調整し
た。A composite oxide composed of Ti and Si was prepared by the following procedure.
Ti源として、下記組成の硫酸チタニルの硫酸水溶液を用
いた。As a Ti source, a sulfuric acid aqueous solution of titanyl sulfate having the following composition was used.
TiOSO4 250g/（TiO2換算） 全H2SO4 1100g/ 水400にアンモニア水（NH3,25％）280を添加し、こ
れにスノーテックス−NCS−30（日産化学製シリカゲ
ル、SiO2として約30重量％含有）を24kg加えた溶液を別
に準備しておき、これに上記硫酸水溶液153を水300
に添加して希釈したチタン含有硫酸水溶液を撹拌下で徐
々に滴下し、共沈ゲルを生成した。この様して得られた
TiO2−SiO2ゲルを濾過、水洗後200℃で10時間乾燥し
た。次いで550℃で空気雰囲気下に６時間焼成した。得
られた粉末の組成はTiO2:SiO2＝4:1（モル比）であり、
BET表面積は185m2/gであった。TiOSO 4 250g / (TiO 2 equivalent) Total H 2 SO 4 1100g / Ammonia water (NH 3 , 25%) 280 was added to water 400, and Snowtex-NCS-30 (Silica gel made by Nissan Chemical, as SiO 2 (Containing approximately 30% by weight) is prepared separately, and the above sulfuric acid aqueous solution 153 is added to water 300 times.
The titanium-containing sulfuric acid aqueous solution added to and diluted with was slowly added dropwise under stirring to produce a coprecipitated gel. Obtained in this way
The TiO 2 —SiO 2 gel was filtered, washed with water, and then dried at 200 ° C. for 10 hours. Then, it was baked at 550 ° C. in an air atmosphere for 6 hours. The composition of the obtained powder was TiO 2 : SiO 2 = 4: 1 (molar ratio),
The BET surface area was 185 m 2 / g.
得られた粉末（以後TS−１と呼ぶ）を用いて、以下に述
べる手順でオゾン分解触媒を調整した。An ozone decomposition catalyst was prepared using the obtained powder (hereinafter referred to as TS-1) by the procedure described below.
上記TS−１粉末8kgとグラファイト粉末1kgの混合粉末に
適当量の水を添加してニーダーでよく混合した後、混練
機によって充分混練し、均一な混練物を押出し成形機で
格子状ハニカム（肉厚0.3mm,目開き1.4mm）に成形し、1
50℃で５時間乾燥してハニカル成形体とした。引続き硝
酸マンガン水溶液を含浸せしめ、乾燥・焼成し、酸化物
としての重量比でTS−1:グラファイト:MnO2＝80:10:10
の触媒を得た。After adding an appropriate amount of water to a mixed powder of 8 kg of the TS-1 powder and 1 kg of graphite powder and thoroughly mixing them with a kneader, sufficiently kneading with a kneading machine, a uniform kneaded product is extruded into a lattice honeycomb (meat Thickness 0.3mm, opening 1.4mm),
It was dried at 50 ° C. for 5 hours to obtain a hanical molded body. Subsequently, it is impregnated with an aqueous solution of manganese nitrate, dried and calcined, and TS-1: graphite: MnO 2 = 80: 10: 10 by weight ratio as an oxide.
The catalyst was obtained.
第２図は本発明方法を実施する為に構成される他の装置
例を示す概略図であり、基本的な構成は第１図の装置例
と類似しており対応する部分には同一の参照符号を付す
ことによって重複説明を省略する。この装置例では、第
３図に示す様に金属シールド６の中央に孔を設けこの孔
に連通する様に排気通路３を接続したものである。この
様な構成であれば、コロナ放電部２近傍のオゾン含有空
気を金属シールド６内から直接的に排気通路へ導びくこ
とができるので、オゾンの拡散，希釈がより一層低減さ
れる。FIG. 2 is a schematic diagram showing another example of the apparatus configured to carry out the method of the present invention, the basic configuration is similar to the apparatus example of FIG. 1, and the same reference numerals are used for corresponding parts. Duplicated description will be omitted by attaching reference numerals. In this device example, as shown in FIG. 3, a hole is provided in the center of the metal shield 6 and the exhaust passage 3 is connected so as to communicate with this hole. With such a configuration, the ozone-containing air in the vicinity of the corona discharge portion 2 can be directly guided from the inside of the metal shield 6 to the exhaust passage, so that the diffusion and dilution of ozone can be further reduced.
［発明の効果］ 以上に述べた如く本発明によれば、コロナ放電器から発
生したオゾンを拡散・希釈する前に排気通路に吸引して
処理する様にしたので、オゾン処理効率の向上が図れ
る。またオゾン分解触媒は直接通電加熱し得る構成とし
たので、オゾン分解処理効果は高められ且つ、耐久性に
おいても優れたものとなる。[Advantages of the Invention] As described above, according to the present invention, ozone generated from the corona discharger is sucked into the exhaust passage before being diffused / diluted for treatment, so that ozone treatment efficiency can be improved. . Further, since the ozone decomposition catalyst is configured to be capable of being directly heated by electric current, the ozone decomposition treatment effect is enhanced and the durability is also excellent.
第１図は本発明方法を実施する為に構成される装置例を
示す概略説明図，第２図は他の装置例を示す概略説明
図，第３図は金属シールド６付近の斜視図である。 １……感光体ドラム、２……コロナ放電部 2a……コロナ放電用ワイヤ ３……排気通路、４……オゾン分解触媒 ５……排気ファン、６……金属シールドFIG. 1 is a schematic explanatory view showing an example of an apparatus configured to carry out the method of the present invention, FIG. 2 is a schematic explanatory view showing another example of the apparatus, and FIG. 3 is a perspective view near the metal shield 6. . 1 ... Photosensitive drum, 2 ... Corona discharge part 2a ... Corona discharge wire 3 ... Exhaust passage, 4 ... Ozone decomposition catalyst 5 ... Exhaust fan, 6 ... Metal shield
フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ０１Ｊ 35/02 ＺＡＢ Ｇ 8017−4Ｇ (72)発明者 西川 和良 兵庫県姫路市網干区興浜字西沖992番地の １ 日本触媒化学工業株式会社触媒研究所 内 (72)発明者 井上 明 兵庫県姫路市網干区興浜字西沖992番地の １ 日本触媒化学工業株式会社触媒研究所 内 (56)参考文献 特開 昭60−244326（ＪＰ，Ａ) 特開 昭60−179125（ＪＰ，Ａ) 実開 昭59−106531（ＪＰ，Ｕ)Continuation of front page (51) Int.Cl. 6 Identification number Office reference number FI Technical indication location B01J 35/02 ZAB G 8017-4G (72) Inventor Kayoshi Nishikawa 1 of 992 Nishioki, Nishihama, Aboshi-ku, Himeji-shi, Hyogo Japan Catalytic Chemical Industry Co., Ltd., Catalytic Research Laboratory (72) Inventor, Akira Inoue, 992, Nishi-oki, Kinohama, Aboshi-ku, Himeji-shi, Hyogo 1 Catalytic Chemical Industry Co., Ltd. (56) , A) JP-A-60-179125 (JP, A) Actually developed 59-106531 (JP, U)
Claims (1)
るに当たり、コロナ放電器のオゾン発生部に臨んで排気
通路を設けると共に、該排気通路の途中に、下記（ａ）
〜（ｃ）の成分からなり、且つ直接通電加熱し得る構成
としたオゾン分解触媒を設け、前記コロナ放電器近傍の
オゾン含有空気を前記オゾン分解触媒に導いてオゾンを
分解することを特徴とするコロナ放電器の廃オゾン処理
方法。 （ａ）Ti,Si,AlおよびZrよりなる群から選択される１種
または２種以上の元素からなる触媒成分、 （ｂ）Mn,Fe,Co,Ni,Ag,Au,Pt,PdおよびRhよりなる群か
ら選択される１種または２種以上の元素からなる触媒成
分、 （ｃ）金属粉，金属繊維，グラファイトおよび活性炭よ
りなる群から選択される１種または２種以上の導電体。1. When treating ozone generated from a corona discharger, an exhaust passage is provided facing the ozone generating portion of the corona discharger, and the following (a) is provided in the middle of the exhaust passage.
To (c), and is provided with an ozone decomposing catalyst configured to be capable of being directly energized and heated, and the ozone-containing air in the vicinity of the corona discharger is guided to the ozone decomposing catalyst to decompose ozone. Waste ozone treatment method for corona discharger. (A) a catalyst component consisting of one or more elements selected from the group consisting of Ti, Si, Al and Zr, (b) Mn, Fe, Co, Ni, Ag, Au, Pt, Pd and Rh A catalyst component consisting of one or more elements selected from the group consisting of (c) one or more conductors selected from the group consisting of metal powder, metal fibers, graphite and activated carbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1106873A JPH0732863B2 (en) | 1989-04-26 | 1989-04-26 | Waste ozone treatment method for corona discharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1106873A JPH0732863B2 (en) | 1989-04-26 | 1989-04-26 | Waste ozone treatment method for corona discharger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02284628A JPH02284628A (en) | 1990-11-22 |
| JPH0732863B2 true JPH0732863B2 (en) | 1995-04-12 |
Family
ID=14444656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1106873A Expired - Lifetime JPH0732863B2 (en) | 1989-04-26 | 1989-04-26 | Waste ozone treatment method for corona discharger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0732863B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0738936B2 (en) * | 1989-05-11 | 1995-05-01 | 株式会社日本触媒 | Ozone decomposition method |
| JPH038414A (en) * | 1989-06-06 | 1991-01-16 | Sakai Chem Ind Co Ltd | Method for regenerating catalyst |
| JPH07102301B2 (en) * | 1989-12-12 | 1995-11-08 | 堺化学工業株式会社 | Ozone decomposition catalyst filter and ozone decomposer |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59106531U (en) * | 1983-01-07 | 1984-07-18 | 京セラミタ株式会社 | Ozone decomposition device for electrophotographic copying machine |
| JPS60179125A (en) * | 1984-02-28 | 1985-09-13 | Fuji Xerox Co Ltd | Ozone decomposing apparatus |
| JPS60244326A (en) * | 1984-05-21 | 1985-12-04 | Fuji Xerox Co Ltd | Ozone decomposition filter of electrophotographic copier |
-
1989
- 1989-04-26 JP JP1106873A patent/JPH0732863B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02284628A (en) | 1990-11-22 |
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