JPH0795018B2 - Method for long-term and continuous monitoring of the harmful substance content of gas-loaded aerosols - Google Patents
Method for long-term and continuous monitoring of the harmful substance content of gas-loaded aerosolsInfo
- Publication number
- JPH0795018B2 JPH0795018B2 JP61128298A JP12829886A JPH0795018B2 JP H0795018 B2 JPH0795018 B2 JP H0795018B2 JP 61128298 A JP61128298 A JP 61128298A JP 12829886 A JP12829886 A JP 12829886A JP H0795018 B2 JPH0795018 B2 JP H0795018B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- substances
- loaded
- harmful substances
- separated
- 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
- 239000000126 substance Substances 0.000 title claims description 39
- 238000000034 method Methods 0.000 title claims description 16
- 239000000443 aerosol Substances 0.000 title claims description 13
- 230000007774 longterm Effects 0.000 title claims description 7
- 238000012544 monitoring process Methods 0.000 title claims description 5
- 239000007789 gas Substances 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 13
- 238000000926 separation method Methods 0.000 claims description 12
- 239000002912 waste gas Substances 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 9
- 239000003546 flue gas Substances 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 7
- 238000005201 scrubbing Methods 0.000 claims description 6
- 238000009833 condensation Methods 0.000 claims description 5
- 230000005494 condensation Effects 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000011343 solid material Substances 0.000 claims description 4
- 238000012546 transfer Methods 0.000 claims description 3
- 239000000779 smoke Substances 0.000 claims description 2
- 238000009834 vaporization Methods 0.000 claims description 2
- 230000008016 vaporization Effects 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000013056 hazardous product Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
- Treating Waste Gases (AREA)
- Cyclones (AREA)
Description
【発明の詳細な説明】 産業上の利用分野： 本発明は、エーロゾルの流れから低圧により試料を等速
で部分的に取り出し、取り出し検知器を少なくとも部分
的に加熱することにより、ガスで負荷されたエーロゾ
ル、例えば大型火炉またはごみ焼却炉の煙道ガス洗浄器
の後方での液体成分もしくは液体小液滴で負荷された廃
ガス流の有害物質含量を長期間測定しかつ継続的に監視
する方法に関する。DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention: The present invention is gas loaded by partially withdrawing a sample from an aerosol stream at low velocity and at least partially heating an withdrawal detector. Method for long-term and continuous monitoring of harmful substances content of waste gas streams loaded with liquid components or liquid droplets behind aerosols, for example flue gas scrubbers in large furnaces or refuse incinerators Regarding
即ち、本発明は、煙道ガスの流れから低圧により試料を
等速で部分的に取り出し、ならびに有害物質含量を分離
することにより、例えば大型火炉からの負荷された廃ガ
ス流の有害物質含量を長期間測定しかつ継続的に監視す
る方法に関する。従って、この方法は、主要流中の有害
物質の分離を不用とし、ガス状有害物質が配慮されてい
る。That is, the present invention provides for the partial removal of a sample from the flue gas stream at low pressure at a constant rate, as well as the separation of the hazardous material content, for example to determine the hazardous material content of a loaded waste gas stream from a large furnace. It relates to a method for long-term measurement and continuous monitoring. Therefore, this method does not require the separation of harmful substances in the main stream and takes into account gaseous harmful substances.
従来技術： エーロゾルは、ガスで負荷された液体と一緒に小液滴の
形で生じ、その際液体は溶解された物質そのものである
かまたは固体は流体中もしくは液体の小液滴中に存在し
ていてもよい。このようなエーロゾルは、例えば燃焼装
置が後接されている煙道ガス洗浄器の後方に存在し、こ
の場合には、ほぼ60℃の範囲内の温度が生じる。Prior art: Aerosols occur in the form of droplets with a gas-loaded liquid, where the liquid is the dissolved substance itself or the solid is present in a fluid or in a liquid droplet. May be. Such aerosols are present, for example, behind the flue gas scrubber to which the combustion device is followed, in which case temperatures in the range of approximately 60 ° C. occur.
発明が解決しようとする問題点： ところで、本発明の課題は、液体成分もしくは液体小液
滴で負荷された廃ガス流の有害物質含量を例えば大型火
炉またはごみ焼却炉の煙道ガス洗浄器の後方で長期間測
定しかつ継続的に監視することをも可能ならしめる１つ
の方法を記載することである。Problems to be Solved by the Invention: By the way, the object of the present invention is to determine the harmful substance content of a waste gas stream loaded with liquid components or liquid droplets, for example in a flue gas scrubber of a large furnace or a refuse incinerator. It is to describe one way that it is also possible to measure long term behind and to monitor continuously.
問題点を解決するための手段： この課題は、本発明によれば、特許請求の範囲第１項に
記載されている処理過程、 ａ）吸引濾過されたエーロゾルの小液滴の液体を例えば
煙道ガスの温度を越えてさらに加熱することによって蒸
発させ、 ｂ）粗い固体物質を例えばガスサイクロン中で連続的に
分離し、分離した固体物質を例えばサイクル仕切弁によ
って連続的に排出し、これを捕集容器に移し、 ｃ）蒸気を凝縮によって連続的に分離し、引続きガス洗
浄工程に移し、 ｄ）廃ガス流の有害物質の分布を捕集容器、凝縮工程お
よび洗浄工程から得られる試料物質の検量測定によって
測定し、 ｅ）連続的な有害物質の分離を有害物質分布の測定後に
それぞれ固体物質の分離に制限するかまたは蒸気の連続
的な分離に制限し、または／および蒸気をガス洗浄工程
に移し、かつ平衡を保つことによって解決され、ならび
に付加的に特許請求の範囲第２項に記載されている処理
過程、ｆ）微細な浮遊物質を相互に接続可能および交換
可能な微細フィルタで連続的に分離し、分離した物質を
廃ガス流の有害物質分布の測定のために使用することの
有利なもの１つの態様によって解決される。Means for solving the problem: This problem is according to the invention the treatment process as claimed in claim 1, a) Suction-filtered aerosol droplets liquid such as smoke. It is evaporated by further heating above the temperature of the flue gas, b) the coarse solid material is continuously separated, for example in a gas cyclone, and the separated solid material is continuously discharged, for example by a cycle sluice valve, which is Transfer to a collection vessel, c) the vapor is continuously separated by condensation and subsequently transferred to a gas scrubbing step, and d) the distribution of harmful substances in the waste gas stream is obtained from the collection vessel, a condensation step and a scrubbing step. E) limiting the continuous separation of harmful substances to the separation of solid substances respectively after the measurement of the distribution of harmful substances or to the continuous separation of vapors, and / or the vaporization of vapors. Process step, which is solved by moving to a washing step and equilibrating, and additionally a process step as claimed in claim 2, f) a fine floating material which is interconnectable and exchangeable. One advantage of the continuous separation with filters and the use of the separated substances for the distribution of the harmful substances in the waste gas stream is solved by one aspect.
更に、この方法ではガス状もしくは液状有害物質に対
し、ならびに全く同様に固体に対しても間断なく評価す
ることができ、相当する長時間記録保管することができ
る。検量測定の場合には、個々の有害物質の量、組成も
しくは分布および一定時間に亘ってのガス量に関する対
応関係が確認される。従って、このガス量は、この時間
に対して“検量測定され”、即ちこの時間で常に等量が
含有されており、この場合には、常に後測定する必要は
ない。Furthermore, this method allows continuous evaluation of gaseous or liquid harmful substances, as well as solids, and records can be stored for a correspondingly long time. In the case of calibration measurement, the correspondence relationship regarding the amount, composition or distribution of individual harmful substances and the amount of gas over a certain period of time is confirmed. Therefore, this amount of gas is "calibrated" for this time, that is to say that it always contains an equal amount at this time, in which case it does not always have to be measured later.
次に、本発明方法をさらに詳細に記載する： １つの別の方法の場合には、等速で部分流を取り出した
後に主要ガス流から取り出された固体は、２工程でそれ
ぞれ別個に粒径に応じて分離され、かつ分析される。ガ
ス状成分は、等速度をもはや損なわない少量の部分流の
形で捕捉され、かつガス洗浄に施こされる。次に、取得
した有害物質から全有害物質の組成は測定され、さらに
測定はなお第１の連続的分離工程の粗い固体物質のみに
制限される。更に、同時に取得された試料物質のみは、
引続き長時間の評価のために使用される。The process according to the invention will now be described in more detail: In one alternative process, the solids withdrawn from the main gas stream after the withdrawal of the partial stream at a constant velocity are each of two separate particle sizes in two steps. Are separated and analyzed accordingly. The gaseous components are captured in the form of a small partial stream which no longer impairs the constant velocity and are subjected to a gas scrubbing. The composition of the total harmful substances from the obtained harmful substances is then measured, and the measurement is still limited to only the coarse solid substances of the first continuous separation step. Furthermore, only the sample substance acquired at the same time is
It will continue to be used for long-term evaluation.
更に、これにより、大型火炉またはごみ焼却炉の廃ガス
流中の大抵の有害物質は実際に捕捉することができるこ
とが判明した。それというのも、廃ガス中の大抵の有害
物質は、固体上に存在し、ひいては濾過することができ
るからである。しかし、例えばHgのような若干のもの
は、揮発性であるかもしくはガス状である。更に、前記
装置の煙道ガス洗浄器の後方でガスで負荷された小液滴
および固体粒子からなるエーロゾルが生成される。Furthermore, it has been found that this makes it possible to practically trap most harmful substances in the waste gas streams of large furnaces or refuse incinerators. Most of the harmful substances in the waste gas are present on solids and can thus be filtered. However, some such as Hg are volatile or gaseous. Furthermore, behind the flue gas scrubber of the device, an aerosol is produced consisting of gas-loaded droplets and solid particles.
更に、またこのエーロゾルを捕捉するため、第１過程で
等速で取り出される、既に検知器中ないしは検知器に接
して少なくとも部分的に凝縮阻止のために加熱される部
分ガス流は、吸引濾過したエーロゾル中の小液滴を蒸発
させる目的で取り出し位置での温度を越えて加熱される
かないしは検知器中で加熱される。第２過程において
は、差当り粗い固体物質は、例えばガスサイクロン中で
連続的に分離され、サイクル仕切弁または同様の装置に
より連続的に排出され、かつ捕集容器に移される。Furthermore, in order to capture this aerosol, the partial gas stream, which is withdrawn at a constant rate in the first step and has already been heated in the detector or in contact with the detector at least partially to prevent condensation, is suction filtered. It is heated above the temperature at the withdrawal point or in the detector for the purpose of evaporating the small droplets in the aerosol. In the second step, the coarse solid substance per difference is continuously separated, for example in a gas cyclone, continuously discharged by a cycle sluice valve or similar device and transferred to a collecting vessel.
第３の処理過程の場合、第１工程で生成された蒸気は、
例えば冷却勾配中で凝縮され、得られた凝縮物は、導出
され、かつ酸／アルカリによるガス洗浄に供給される。
こうして得られた全ての蒸気状またはガス状の有害物質
は、同様に捕集容器に移される。In the case of the third treatment step, the steam generated in the first step is
The condensate obtained, for example condensed in a cooling gradient, is discharged and fed to an acid / alkali gas scrubbing.
All vaporous or gaseous harmful substances thus obtained are likewise transferred to a collecting container.
次に、こうして得られた有害物質から第４過程の場合に
全廃ガス流の有害物質の分布は、液状もしくは蒸気状成
分を含めて検量測定によつて測定される。次に、第５過
程の場合には、有害物質の分離は、再び第２工程の連続
的な固体物質の取得に制限され、かつこうして得られた
物質を相殺する。更に、残りの今や全く連続的に捕捉さ
れない有害物質は断念することができる。それというの
も、この有害物質は、先行した計量測定により測定する
ことができるからである。また、この場合付加的に、計
量のためには、他の過程としてなお微細な浮遊物質を相
互に接続可能および交換可能な微細フィルタで連続的に
分離することもできる。記載した新規の本方法の場合、
全ての連続的分離過程は、段階的に測定装置の主要ガス
流中、すなわち煙道ガス流から等速で取り出される試料
部分流中で行なわれる。Then, from the thus obtained harmful substances, the distribution of the harmful substances in the entire waste gas stream in the case of the fourth step is measured by a calibration measurement including liquid or vapor components. Then, in the case of the fifth step, the separation of the harmful substances is again limited to the continuous solid substance acquisition of the second step and offsets the substances thus obtained. In addition, the remaining noxious substances that are not captured at all now continuously can be abandoned. This is because this toxic substance can be measured by preceding metrological measurements. In addition, in this case, for the purpose of metering, it is also possible, as a further process, to continuously separate finely suspended substances by means of mutually connectable and exchangeable fine filters. In the case of the new method described,
All continuous separation processes are carried out stepwise in the main gas stream of the measuring device, i.e. in the sample partial stream which is withdrawn from the flue gas stream at a constant velocity.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 ゾンヤ・マウル ドイツ連邦共和国シユトラウベンハルト ３・シユトラウベンハルトシユトラーセ 16 (72)発明者 ハイナー・マイヒエルベツク ドイツ連邦共和国エツゲンシユタイン−レ オポルツハーフエン１・プフインツシユト ラーセ 10 (72)発明者 アルベルト・メルツ ドイツ連邦共和国カールスルーエ１・ブレ スラウアー・シユトラーセ 56ツエー (72)発明者 フーベルト・フオツグ ドイツ連邦共和国カールスルーエ・デ−コ ステル−シユトラーセ ２ (56)参考文献 米国特許3070990（ＵＳ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Zonya Maul, Federal Republic of Germany Syutraubebenhardt 3, Syutraubenhard Syutrase 16 (72) Inventor Heiner-Mayhierbetsk Federal Republic of Germany Etzgen Syutain-Le Opo Luz Halfen 1 ・ Pfünts Schutlerse 10 (72) Inventor Albert Mertz Karlsruhe 1 Breslauer Schutlerse 56 Twe (72) Inventor Hubert Huotsug Germany Karlsruhe De Kostel-Schutler 2 (56) ) Reference US Patent 3070990 (US, A)
Claims (2)
速で部分的に取り出し、取り出し検知器を少なくとも部
分的に加熱することにより、ガスで負荷されたエーロゾ
ル、例えば大型火炉またはごみ焼却炉の煙道ガス洗浄器
の後方での液体成分もしくは液体小液滴で負荷された廃
ガス流の有害物質含量を長期間測定しかつ継続的に監視
する方法において、 ａ）吸引濾過されたエーロゾルの小液滴の液体を例えば
煙道ガスの温度を越えてさらに加熱することによって蒸
発させ、 ｂ）粗い固体物質を例えばガスサイクロン中で連続的に
分離し、分離した固体物質を例えばサイクル仕切弁によ
って連続的に排出し、これを捕集容器に移し、 ｃ）蒸気を凝縮によって連続的に分離し、引続きガス洗
浄工程に移し、 ｄ）廃ガス流の有害物質の分布を捕集容器、凝縮工程お
よび洗浄工程から得られる試料物質の検量測定によって
測定し、 ｅ）連続的な有害物質の分離を有害物質分布の測定後に
それぞれ固体物質の分離に制限するかまたは蒸気の連続
的な分離に制限し、または／および蒸気をガス洗浄工程
に移し、かつ平衡を保つことを特徴とする、ガスで負荷
されたエーロゾルの有害物質含量を長期間測定しかつ継
続的に監視する方法。1. A gas-loaded aerosol, such as a large furnace or refuse incinerator smoke, by partially withdrawing a sample at a constant rate from an aerosol stream at low pressure and at least partially heating the withdrawal detector. In a method for long-term and continuous monitoring of the harmful substance content of a waste gas stream loaded with liquid components or liquid droplets behind a flue gas scrubber: a) Suction-filtered aerosol droplets The droplets of liquid are evaporated, for example by further heating above the temperature of the flue gas, and b) the coarse solid material is continuously separated, for example in a gas cyclone, and the separated solid material is continuously separated, for example by a cycle gate valve. And then transfer it to a collection vessel, c) continuously separate the vapor by condensation, and then transfer to the gas scrubbing step, and d) capture the distribution of harmful substances in the waste gas stream. Measured by calibrating the sample substances from the collection vessel, condensation process and washing process, e) limiting the continuous separation of harmful substances to the separation of solid substances respectively after measuring the distribution of harmful substances or the continuous vaporization of vapors. Method for long-term measurement and continuous monitoring of the harmful substance content of gas-loaded aerosols, characterized in that the separation is restricted and / or the vapor is transferred to a gas scrubbing step and equilibrated.
続可能および交換可能な微細フィルタで連続的に分離
し、分離した物質を廃ガス流の有害物質分布の測定のた
めに使用する、特許請求の範囲第１項記載の方法。2. An adduct, f) finely suspended substances are continuously separated by mutually connectable and exchangeable fine filters, and the separated substances are used for measuring the distribution of harmful substances in the waste gas stream. The method according to claim 1, wherein
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3520380.3 | 1985-06-07 | ||
| DE19853520380 DE3520380C2 (en) | 1984-06-14 | 1985-06-07 | Process for long-term determination and continuous monitoring of the pollutant content of exhaust gases from large combustion plants and waste incineration plants |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61284639A JPS61284639A (en) | 1986-12-15 |
| JPH0795018B2 true JPH0795018B2 (en) | 1995-10-11 |
Family
ID=6272638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61128298A Expired - Lifetime JPH0795018B2 (en) | 1985-06-07 | 1986-06-04 | Method for long-term and continuous monitoring of the harmful substance content of gas-loaded aerosols |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0795018B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576536A (en) * | 2017-08-31 | 2018-01-12 | 河南科技大学 | A sampling device for combustion flue gas samples containing high-concentration particulate matter |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3070990A (en) | 1960-02-11 | 1963-01-01 | Pittsburgh Plate Glass Co | Sampling device and method for analysis of furnace gases |
-
1986
- 1986-06-04 JP JP61128298A patent/JPH0795018B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3070990A (en) | 1960-02-11 | 1963-01-01 | Pittsburgh Plate Glass Co | Sampling device and method for analysis of furnace gases |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61284639A (en) | 1986-12-15 |
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