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JP3551049B2 - Adsorbent dust removal device - Google Patents
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JP3551049B2 - Adsorbent dust removal device - Google Patents

Adsorbent dust removal device Download PDF

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Publication number
JP3551049B2
JP3551049B2 JP34434498A JP34434498A JP3551049B2 JP 3551049 B2 JP3551049 B2 JP 3551049B2 JP 34434498 A JP34434498 A JP 34434498A JP 34434498 A JP34434498 A JP 34434498A JP 3551049 B2 JP3551049 B2 JP 3551049B2
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Japan
Prior art keywords
adsorbent
dust
harmful substances
particle size
sieve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP34434498A
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Japanese (ja)
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JP2000167393A (en
Inventor
通孝 古林
力男 篠原
喜一 長屋
健一 長井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kanadevia Corp
Original Assignee
Hitachi Zosen Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Priority to JP34434498A priority Critical patent/JP3551049B2/en
Publication of JP2000167393A publication Critical patent/JP2000167393A/en
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Publication of JP3551049B2 publication Critical patent/JP3551049B2/en
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  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Treating Waste Gases (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、吸着剤付着ダストの除去装置に関する。
【0002】
【従来の技術】
廃棄物焼却炉で発生するダイオキシン類等の有害物の除去方法として、吸着剤を用いる方法が提案されている。
【0003】
廃棄物燃焼排ガス中のダスト濃度について大気汚染防止法で規制されている範囲では、単位体積当たりの排ガスを処理するために必要な吸着剤量と単位体積当たりの排ガス中のダスト量が同程度である。すなわち吸着剤には同等量のダストが付着する可能性があり、特に吸着剤使用装置の入口側は瞬時にダストに覆われる。表面がダストに覆われた吸着剤については有害物の吸着能が極端に低下するため、ダスト濃度の高い排ガス処理に適用するときは吸着剤の排出量が多くなる。排出された吸着剤は廃棄される。
【0004】
【発明が解決しようとする課題】
本発明は、上記の実状に鑑み、廃棄物焼却排ガス中のダイオキシン類等の有害物の除去に用いた使用済み吸着剤に付着しているダストを吸着剤から容易に除き、その吸着剤を有害物除去用吸着剤として再利用することができる装置を提供することを目的とする。
【0005】
【課題を解決するための手段】
本発明による吸着剤付着ダストの除去装置は、吸着剤粒径以下のメッシュの篩 (2) を底部に有し、その上に、廃棄物焼却排ガス中のダイオキシン類等の有害物の除去に用いた使用済み吸着剤を乗せ、吸着剤に上方から空気を吹付け、吸着剤表面に付着しているダストを除去し、使用後の空気を廃棄物焼却炉煙道に戻すとともに、ダスト除去後の吸着剤を有害物除去用吸着剤として再利用することを特徴としている。
【0006】
吹き付けガスとしては、空気を用い、また使用後のガスを廃棄物焼却炉煙道に戻す。
吸着剤粒径(1〜10mm)以下のメッシュの篩の上に吸着剤を乗せ、吸着剤に上方からガスを吹付けることが好ましい。篩を振動させることも好ましい。
【0007】
ダスト除去後の吸着剤をダイオキシン類等の有害物除去用吸着剤として再利用する。
【0008】
【発明の実施の形態】
つぎに、本発明を実施例に基いて具体的に説明する。
【0009】
実施例1
図1に、本発明による使用済み吸着剤のダスト除去装置を示す。ダスト除去装置(1) は、吸着剤粒径以下のメッシュの篩(2) を底部に有し、その上に吸着剤を乗せ、吸着剤に上方からガスを吹付ける構造のものである。篩(2) には振動機(3) が取付けてあり、必要に応じて篩(2) を振動させることができる。
【0010】
廃棄物燃焼排ガス中のダイオキシン類等の有害物質の除去に使用された吸着剤には、上流側で行う除塵方法によって異なるが、吸着剤に対して数%〜数十%の割合でダストが付着している。このダストは吸着剤の表面に付着しているだけであるから、ガスを吹き付けることで容易に除くことができる。使用するガスとして工場空気を用いる。
【0011】
上記操作は、吸着剤粒径以下のメッシュの篩(2) の上に吸着剤を乗せ、上部からガスを吹き付けることによって可能になる。また篩(2) を振動させることによって吸着剤とダストの分離効率を高めることができる。
【0012】
処理後の吸着剤では、付着していたダストが除かれているため、吸着能は再び元に戻り、廃棄物燃焼排ガス中のダイオキシン類等の有害物質除去用吸着剤として再利用することが可能となる。吹き付けに使用したガスは、上記操作によって他の有害物が吸着剤から脱離することはないため、除塵装置上流に戻す。
【0013】
上記操作による実験結果を表1に示す。
【0014】
【表1】

Figure 0003551049
【0015】
【発明の効果】
本発明による吸着剤付着ダスト除去装置は、上述のように、吸着剤粒径以下のメッシュの篩を底部に有し、その上に、廃棄物焼却排ガス中の有害物の除去に用いた使用済み吸着剤を乗せ、吸着剤に上方から空気を吹付けて、吸着剤表面に付着しているダストを除去し、使用後の空気を廃棄物焼却炉煙道に戻すとともに、ダスト除去後の吸着剤を有害物除去用吸着剤として再利用することを特徴とするもので、本発明によれば、廃棄物焼却排ガス中のダイオキシン類等の有害物の除去に用いた使用済み吸着剤に付着しているダストを吸着剤から容易に除き、その吸着剤を有害物除去用吸着剤として再利用することができる。
【図面の簡単な説明】
【図1】本発明の実施例を示すフローシートである。
【符号の説明】
1:ダスト除去装置
2:篩
3:振動機[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a device for removing adsorbent-adhered dust.
[0002]
[Prior art]
As a method for removing harmful substances such as dioxins generated in a waste incinerator, a method using an adsorbent has been proposed.
[0003]
In the range regulated by the Air Pollution Control Law regarding the dust concentration in waste combustion exhaust gas, the amount of adsorbent required to treat exhaust gas per unit volume and the amount of dust in exhaust gas per unit volume are similar. is there. That is, there is a possibility that the same amount of dust may adhere to the adsorbent, and especially the inlet side of the adsorbent-using device is instantly covered with dust. Since the adsorbent whose surface is covered with dust has an extremely low ability to adsorb harmful substances, the discharge amount of the adsorbent increases when applied to exhaust gas treatment having a high dust concentration. The discharged adsorbent is discarded.
[0004]
[Problems to be solved by the invention]
In view of the above situation, the present invention easily removes dust adhering to a used adsorbent used for removing harmful substances such as dioxins in waste incineration exhaust gas from the adsorbent, and makes the adsorbent harmful. and to provide a can be Ru equipment be reused as an adsorbent for goods removed.
[0005]
[Means for Solving the Problems]
The device for removing adsorbent-adhered dust according to the present invention has a mesh sieve (2) having a size equal to or less than the adsorbent particle size at the bottom, and is used for removing harmful substances such as dioxins in waste incineration exhaust gas. Put the used adsorbent, blow air from above on the adsorbent to remove the dust adhering to the adsorbent surface , return the used air to the waste incinerator flue and remove the dust. Is characterized by being reused as an adsorbent for removing harmful substances .
[0006]
The spraying gas, using the air, also to return the gas after use in waste incinerator flue.
It is preferable to put the adsorbent on a mesh sieve having an adsorbent particle size (1 to 10 mm) or less, and to blow gas onto the adsorbent from above. It is also preferable to vibrate the sieve.
[0007]
You reuse adsorbent after dedusting as hazardous substance removing adsorbent such as dioxins.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, the present invention will be specifically described based on examples.
[0009]
Example 1
FIG. 1 shows a used adsorbent dust removing apparatus according to the present invention . The dust removing device (1) has a structure in which a mesh sieve (2) having a size smaller than the particle size of the adsorbent is provided at the bottom, the adsorbent is placed on the sieve (2), and gas is blown from above onto the adsorbent. A vibrator (3) is attached to the sieve (2), and the sieve (2) can be vibrated as needed.
[0010]
The adsorbent used to remove dioxins and other harmful substances in the waste gas from the flue gas depends on the method of dust removal performed on the upstream side, but dust adheres at a rate of several percent to several tens of percent of the adsorbent. are doing. Since this dust only adheres to the surface of the adsorbent, it can be easily removed by blowing gas. Factory air is used as the gas used.
[0011]
The above operation can be performed by placing the adsorbent on a mesh sieve (2) having a particle size equal to or less than the adsorbent particle size and blowing gas from above. By vibrating the sieve (2) , the efficiency of separating the adsorbent and dust can be increased.
[0012]
Since adsorbed dust is removed from the treated adsorbent, the adsorbing ability returns to its original state, and it can be reused as an adsorbent for removing harmful substances such as dioxins in waste combustion exhaust gas. It becomes. The gas used for the spraying is returned to the upstream of the dust removing device because other harmful substances are not desorbed from the adsorbent by the above operation.
[0013]
Table 1 shows the experimental results obtained by the above operation.
[0014]
[Table 1]
Figure 0003551049
[0015]
【The invention's effect】
As described above, the adsorbent-adhered dust removal device according to the present invention has a mesh sieve having a particle size equal to or smaller than the adsorbent particle at the bottom, and furthermore, used waste used for removing harmful substances in waste incineration exhaust gas. Place the adsorbent, blow air from above onto the adsorbent to remove dust adhering to the adsorbent surface, return the used air to the waste incinerator flue, and remove the adsorbent It is characterized by being reused as an adsorbent for removing harmful substances , according to the present invention , attached to the used adsorbent used to remove harmful substances such as dioxins in waste incineration exhaust gas Dust can be easily removed from the adsorbent, and the adsorbent can be reused as an adsorbent for removing harmful substances .
[Brief description of the drawings]
FIG. 1 is a flow sheet showing an embodiment of the present invention.
[Explanation of symbols]
1: dust removal device 2: sieve 3: vibrator

Claims (2)

吸着剤粒径以下のメッシュの篩 (2) を底部に有し、その上に、廃棄物焼却排ガス中のダイオキシン類等の有害物の除去に用いた使用済み吸着剤を乗せ、吸着剤に上方から空気を吹付け、吸着剤表面に付着しているダストを除去し、使用後の空気を廃棄物焼却炉煙道に戻すとともに、ダスト除去後の吸着剤を有害物除去用吸着剤として再利用することを特徴とする吸着剤付着ダスト除去装置 A mesh sieve (2) with a particle size equal to or smaller than the adsorbent particle size is provided at the bottom, and the used adsorbent used to remove harmful substances such as dioxins in waste incineration exhaust gas is placed on top of it. and only blowing air from, to remove dust adhering to the adsorbent surface, re with return air after use in waste incinerator flue, the adsorbent after dedusting as hazardous substance removing adsorbent An adsorbent-adhered dust removing device characterized by utilizing . (2) の振動手段 (3) を備えた請求項1記載のダスト除去装置The dust removing device according to claim 1, further comprising a vibrating means (3) for the sieve (2) .
JP34434498A 1998-12-03 1998-12-03 Adsorbent dust removal device Expired - Fee Related JP3551049B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP34434498A JP3551049B2 (en) 1998-12-03 1998-12-03 Adsorbent dust removal device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP34434498A JP3551049B2 (en) 1998-12-03 1998-12-03 Adsorbent dust removal device

Publications (2)

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JP2000167393A JP2000167393A (en) 2000-06-20
JP3551049B2 true JP3551049B2 (en) 2004-08-04

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6499882B2 (en) * 2015-03-04 2019-04-10 新日鐵住金株式会社 Continuous fixed bed catalytic reactor and gas reforming method using the same
CN111871075B (en) * 2020-07-17 2021-09-14 江苏乾宏能源科技有限公司 Be used for tar processing waste gas SOx/NOx control integration equipment

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