JPH10281975A - Coal dust concentration measuring device - Google Patents
Coal dust concentration measuring deviceInfo
- Publication number
- JPH10281975A JPH10281975A JP9799497A JP9799497A JPH10281975A JP H10281975 A JPH10281975 A JP H10281975A JP 9799497 A JP9799497 A JP 9799497A JP 9799497 A JP9799497 A JP 9799497A JP H10281975 A JPH10281975 A JP H10281975A
- Authority
- JP
- Japan
- Prior art keywords
- concentration
- coal dust
- gas
- dust
- coal
- 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
- 239000002817 coal dust Substances 0.000 title claims abstract description 58
- 238000002485 combustion reaction Methods 0.000 claims abstract description 29
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 28
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 14
- 239000001569 carbon dioxide Substances 0.000 claims description 14
- 239000000428 dust Substances 0.000 abstract description 34
- 239000003245 coal Substances 0.000 abstract description 7
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 44
- 238000005259 measurement Methods 0.000 description 29
- 238000004458 analytical method Methods 0.000 description 11
- 238000005070 sampling Methods 0.000 description 8
- 239000010881 fly ash Substances 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000031700 light absorption Effects 0.000 description 2
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、例えば採炭場や貯
炭場から大気中に飛散する炭塵の濃度測定に利用される
炭塵濃度測定装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coal dust concentration measuring device used for measuring the concentration of coal dust scattered into the atmosphere from, for example, a coal pit or a coal yard.
【０００２】[0002]
【従来の技術】炭塵濃度測定装置は、主として採炭場や
貯炭場から飛散して大気中に浮遊する炭塵の濃度を測定
するために用いられる。図３は、従来の炭塵濃度測定装
置である特開平８−２７１４０３号公報に記載の装置の
概略構成図である。まず、炭塵等の塵埃を含有する大気
は、第一の粉塵測定部３０に吸引される。粉塵測定部３
０は光散乱式光度計であって、含塵大気に光を照射して
光を散乱させ通過した光を測定することにより該大気中
の粉塵濃度を測定する。次いで、該含塵大気は燃焼部３
１に導入され、含有する炭塵が燃焼される。その燃焼後
の大気は第二の粉塵測定部３２に導入され、上記第一の
粉塵測定部３０と同一の方法により粉塵濃度が測定され
る。演算部３３では、第一及び第二の粉塵測定部３０、
３２により検出された各粉塵濃度の差に基づき、含塵大
気中の炭塵濃度が算出される。2. Description of the Related Art A coal dust concentration measuring device is mainly used to measure the concentration of coal dust scattered from coal mines and storage yards and suspended in the atmosphere. FIG. 3 is a schematic configuration diagram of a conventional coal dust concentration measuring device described in Japanese Patent Application Laid-Open No. 8-271403. First, the atmosphere containing dust such as coal dust is sucked into the first dust measuring unit 30. Dust measurement unit 3
Numeral 0 denotes a light scattering type photometer, which irradiates the dust-containing atmosphere with light, scatters the light, and measures the passed light to measure the dust concentration in the atmosphere. Next, the dust-containing atmosphere is supplied to the combustion unit 3.
1 and the contained coal dust is burned. The air after the combustion is introduced into the second dust measuring unit 32, and the dust concentration is measured by the same method as the first dust measuring unit 30. In the calculation unit 33, the first and second dust measurement units 30,
The coal dust concentration in the dust-containing atmosphere is calculated based on the difference between the respective dust concentrations detected by 32.
【０００３】[0003]
【発明が解決しようとする課題】上記従来の炭塵濃度測
定装置は、次のような問題を有している。まず、配管中
に吸引された含塵大気中の粉塵の一部は該配管中を輸送
される間にその内壁等に付着してしまうため、該配管が
長いほど第一の粉塵測定部３０及び燃焼部３１に到達す
る炭塵量が減少し測定精度が劣化する。このため、正確
な測定を行なうには、大気吸入口から燃焼部３１に至る
迄の配管を短くする必要がある。従って、広い貯炭場の
複数地点で同時に測定を行なう場合には、各測定地点に
それぞれ炭塵測定装置を配備しなければならず、測定コ
ストが高くなってしまう。The conventional coal dust concentration measuring apparatus has the following problems. First, since a part of the dust in the dust-containing atmosphere sucked into the pipe adheres to the inner wall thereof while being transported in the pipe, the longer the pipe is, the more the first dust measuring unit 30 and The amount of coal dust arriving at the combustion section 31 decreases, and the measurement accuracy deteriorates. For this reason, in order to perform accurate measurement, it is necessary to shorten a pipe from the air intake port to the combustion section 31. Therefore, when performing measurements simultaneously at a plurality of points in a large coal storage yard, it is necessary to provide a coal dust measuring device at each of the measurement points, which increases the measurement cost.
【０００４】また、燃焼部３１において炭塵を燃焼する
と炭塵は完全に消失するわけではなく、量は大幅に減る
ものの微細なフライアッシュが発生する。第二の粉塵測
定部３２では浮遊するフライアッシュも光を散乱する要
因となるため、測定精度を劣化させることになる。[0004] Further, when coal dust is burned in the combustion section 31, the coal dust is not completely eliminated, and fine fly ash is generated although the amount is greatly reduced. In the second dust measuring section 32, floating fly ash also becomes a factor of scattering light, so that the measurement accuracy is deteriorated.
【０００５】本発明は上記課題を解決するために成され
たもので、その目的とするところは、測定精度を劣化す
ることなく吸入用配管を長くできるようにすることによ
り互いに離れた複数地点の測定を一台の装置で行なえる
ようにし、且つフライアッシュの影響を受けない精度の
高い炭塵濃度測定装置を提供することにある。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to make a suction pipe long without deteriorating measurement accuracy so that a plurality of points apart from each other can be provided. An object of the present invention is to provide a high-precision coal dust concentration measuring device which can perform measurement with one device and is not affected by fly ash.
【０００６】[0006]
【課題を解決するための手段】上記課題を解決するため
に成された本発明に係る炭塵濃度測定装置は、 a)炭塵を含む試料気体を燃焼するための燃焼手段と、 b)燃焼後の試料気体中の二酸化炭素濃度を測定する第一
の測定手段と、 c)比較対照となる気体中の二酸化炭素濃度を測定する第
二の測定手段と、 d)前記第一及び第二の測定手段により測定された二酸化
炭素濃度の差に基づき前記試料気体中の炭塵濃度を算出
する演算手段と、を備えたことを特徴としている。Means for Solving the Problems To solve the above-mentioned problems, a coal dust concentration measuring apparatus according to the present invention comprises: a) combustion means for burning a sample gas containing coal dust; and b) combustion. First measuring means for measuring the carbon dioxide concentration in the sample gas after, c) second measuring means for measuring the carbon dioxide concentration in the gas to be compared, d) said first and second Calculating means for calculating the concentration of coal dust in the sample gas based on the difference between the carbon dioxide concentrations measured by the measuring means.
【０００７】[0007]
【発明の実施の形態】上記本発明に係る炭塵濃度測定装
置において、第一及び第二の測定手段は、例えば赤外線
の吸光特性を利用した赤外線式ガス分析計を用いること
ができる。炭塵を含む試料気体は、気体採取用の配管に
吸引され、その採取口の近くに配置された燃焼手段に導
入される。燃焼手段において該試料気体中の炭塵は燃焼
し、二酸化炭素が発生する。第一の測定手段は、燃焼後
の試料気体に含まれる二酸化炭素の濃度を測定する。一
方、第二の測定手段は、燃焼を受けない比較対照となる
気体に含まれる二酸化炭素の濃度を測定する。両者の二
酸化炭素の濃度の差は炭塵を燃焼した結果発生した二酸
化炭素によるものであるから、演算手段は二酸化炭素の
濃度差を算出し、更にこの濃度差に基づき炭塵濃度を計
算する。BEST MODE FOR CARRYING OUT THE INVENTION In the above-mentioned coal dust concentration measuring apparatus according to the present invention, the first and second measuring means may be, for example, infrared gas analyzers utilizing infrared absorption characteristics. A sample gas containing coal dust is sucked into a gas sampling pipe and introduced into combustion means arranged near the sampling port. In the combustion means, the coal dust in the sample gas burns and carbon dioxide is generated. The first measuring means measures the concentration of carbon dioxide contained in the sample gas after combustion. On the other hand, the second measuring means measures the concentration of carbon dioxide contained in the non-combustible reference gas. Since the difference between the two concentrations of carbon dioxide is due to the carbon dioxide generated as a result of burning the coal dust, the calculating means calculates the difference between the concentrations of carbon dioxide and further calculates the coal dust concentration based on this difference in concentration.
【０００８】また、第一及び第二の測定手段の気体の導
入口側には、気体中の粉塵を除去するための粉塵除去手
段を備える構成とすることが好ましい。すなわち、赤外
線式ガス分析計等の測定手段では、気体中に粉塵が含ま
れていると該粉塵により光が遮られて正確な測定に支障
をきたす。そこで、上記粉塵除去手段を備えることによ
り、吸引した気体中に含まれていた粉塵や燃焼により発
生した灰等の浮遊物を除去することができる。Further, it is preferable that the first and second measuring means are provided with dust removing means for removing dust in the gas on the gas inlet side. That is, in a measuring means such as an infrared gas analyzer, if dust is contained in the gas, the light blocks the light and hinders accurate measurement. Therefore, by providing the above-described dust removing means, it is possible to remove dust contained in the sucked gas and suspended matters such as ash generated by combustion.
【０００９】[0009]
【発明の効果】本発明に係る炭塵濃度測定装置では、炭
塵を二酸化炭素に変えて測定部へ送り二酸化炭素の濃度
を測定しているため、気体の吸引口の近傍に燃焼部を備
えるようにすれば、該燃焼部から測定部迄の配管を長く
しても測定精度を劣化させることがない。このため、離
れた複数の場所で採取し燃焼したガスを唯一の測定部に
それぞれ送り、該測定部で集中的に炭塵濃度の測定を行
なうようにすることができる。これにより、各測定地点
にそれぞれ炭塵濃度測定装置を設置する必要がないの
で、測定コストが低くて済む。また、各測定地点で採取
された試料を共通の測定部により測定することができる
ので、測定装置の器差による測定誤差がなく、測定結果
の比較がより正確に行なえる。The coal dust concentration measuring device according to the present invention converts coal dust into carbon dioxide and sends it to the measuring unit to measure the concentration of carbon dioxide. Therefore, a combustion unit is provided near the gas suction port. By doing so, even if the piping from the combustion section to the measurement section is lengthened, the measurement accuracy does not deteriorate. For this reason, the gas collected and burned at a plurality of distant places can be sent to only one measurement unit, and the measurement unit can collectively measure the coal dust concentration. Thus, it is not necessary to install a coal dust concentration measuring device at each measurement point, and the measurement cost can be reduced. In addition, since the sample collected at each measurement point can be measured by the common measurement unit, there is no measurement error due to the instrumental difference of the measurement device, and the measurement results can be compared more accurately.
【００１０】更に、粉塵除去手段を備える構成とすれ
ば、燃焼部にて発生したフライアッシュも除去すること
ができるので、従来装置のようにフライアッシュによる
測定精度の劣化も生じない。Further, if the apparatus is provided with the dust removing means, fly ash generated in the combustion section can be removed, so that the measurement accuracy does not deteriorate due to fly ash unlike the conventional apparatus.
【００１１】[0011]
【実施例】以下、本発明に係る炭塵濃度測定装置の一実
施例を図１、図２を参照して説明する。図１は本実施例
による炭塵濃度測定装置の構成図である。炭塵を含む気
体試料は、ポンプ１４の作用により試料採取口１１から
吸引されて、燃焼部１２及びダストフィルタ１３を通過
して分析部１５の試料セル１５１に導入される。また、
ポンプ１８の作用により大気採取口１６から吸引された
通常の（炭塵を含まない）大気はダストフィルタ１７を
通過して分析部１５の対照セル１５２に導入される。分
析部１５は赤外光吸収特性を利用した比較流通式赤外線
ガス分析計を中心に構成されており、試料セル１５１及
び対照セル１５２にそれぞれ導入された気体に対し、光
源部１５３より発した赤外光が回転セクタ１５４により
選択的に照射され、該気体中で吸収を受けて通過した光
が検出部１５５、１５６で検出される。演算部１５７は
両検出部１５５、１５６にて検出された受光信号に基づ
き各気体中のＣＯ2濃度を計算すると共に、両ＣＯ2濃度
の差を後述のように炭塵濃度に換算する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a coal dust concentration measuring apparatus according to the present invention will be described below with reference to FIGS. FIG. 1 is a configuration diagram of a coal dust concentration measuring device according to the present embodiment. The gas sample containing coal dust is sucked from the sampling port 11 by the action of the pump 14, passes through the combustion unit 12 and the dust filter 13, and is introduced into the sample cell 151 of the analysis unit 15. Also,
Normal air (not containing coal dust) sucked from the air sampling port 16 by the action of the pump 18 passes through the dust filter 17 and is introduced into the control cell 152 of the analysis unit 15. The analysis unit 15 is mainly composed of a comparative flow type infrared gas analyzer utilizing infrared light absorption characteristics, and emits red light emitted from the light source unit 153 with respect to the gas introduced into the sample cell 151 and the control cell 152, respectively. External light is selectively irradiated by the rotating sector 154, and light that has been absorbed and passed through the gas is detected by the detection units 155 and 156. The calculation unit 157 calculates the CO 2 concentration in each gas based on the light reception signals detected by the two detection units 155 and 156, and converts the difference between the two CO 2 concentrations into the coal dust concentration as described later.
【００１２】上記構成の炭塵濃度測定装置において、燃
焼部１２では、気体試料は９００℃程度に加熱され、気
体中の炭塵は燃焼してＣＯ2ガスが生成される。このた
め、燃焼部１２を通過した後の気体中のＣＯ2濃度Ｃt
は、 Ｃt＝Ｃc＋Ｃ0 Ｃc：炭塵の燃焼によって生成したＣＯ2濃度 Ｃ0：通常大気中のＣＯ2濃度 となる。この気体がダストフィルタ１３を通過する際に
該気体中に浮遊している粉塵やフライアッシュ等の微細
粒子は除去され、試料セル１５１に導入される。In the coal dust concentration measuring device having the above-described configuration, in the combustion section 12, the gas sample is heated to about 900 ° C., and the coal dust in the gas is burned to generate CO 2 gas. Therefore, the CO 2 concentration Ct in the gas after passing through the combustion section 12
Is, Ct = Cc + C0 Cc: CO 2 concentration produced by the combustion of coal dust C0: the CO 2 concentration in the normal atmosphere. When this gas passes through the dust filter 13, fine particles such as dust and fly ash floating in the gas are removed and introduced into the sample cell 151.
【００１３】分析部１５の対照セル１５２には、ダスト
フィルタ１７により炭塵等の粉塵が除去された大気が導
入されるから、対照セル側の検出部１５６にて検出され
るＣＯ2濃度は通常の大気中のＣＯ2濃度Ｃ0である。従
って、演算部１５７では、試料セル側の検出部１５５に
て検出されたＣＯ2濃度Ｃtから対照セル側の検出部１５
６にて検出されたＣＯ2濃度Ｃ0を減ずることにより、炭
塵の燃焼によって生成したＣＯ2濃度Ｃcが算出される。
また、分析部１５では、導入された各気体を試料セル１
５１及び対照セル１５２中に流通させた後順次排気する
ので、連続的にＣＯ2濃度を測定することができる。Since the air from which dust such as coal dust has been removed by the dust filter 17 is introduced into the control cell 152 of the analysis unit 15, the CO 2 concentration detected by the detection unit 156 on the control cell side is usually Is the CO 2 concentration C0 in the atmosphere. Therefore, the calculation unit 157 calculates the CO 2 concentration Ct detected by the detection unit 155 on the sample cell side from the detection unit 15 on the control cell side.
By subtracting the CO 2 concentration C0 detected by 6, CO 2 concentration Cc generated by the combustion of the coal dust is calculated.
In the analysis unit 15, each introduced gas is sampled into the sample cell 1.
Since the gas is evacuated sequentially after flowing through the cell 51 and the control cell 152, the CO 2 concentration can be continuously measured.
【００１４】燃焼により発生するＣＯ2ガスは炭塵中の
炭素が酸素と反応して生じるものであり、炭塵中の炭素
量は石炭等の種類（生産地等）に依存してほぼ決まって
いる。従って、炭塵濃度はＣＯ2濃度Ｃcにほぼ比例して
おり、その比例係数は測定対象の炭塵中の炭素含有割合
を測定することにより予め求めておくことができるの
で、これによりＣＯ2濃度Ｃcを炭塵濃度に換算すること
ができる。例えば炭素含有割合が９０〔wt％〕の石炭の
場合、８４．０〔volｐｐｍ〕のＣＯ2濃度が５０〔ｍｇ
／ｍ3〕の炭塵濃度に相当する。The CO 2 gas generated by combustion is generated by the reaction of carbon in coal dust with oxygen, and the amount of carbon in coal dust is substantially determined depending on the type of coal or the like (production place, etc.). I have. Thus, coal dust concentration is approximately proportional to the CO 2 concentration Cc, it is possible to previously obtained by the proportionality factor is to measure the carbon content in coal dust to be measured, thereby the CO 2 concentration Cc can be converted to coal dust concentration. For example, in the case of coal having a carbon content of 90 [wt%], the CO 2 concentration of 84.0 [vol ppm] is 50 [mg].
/ M 3 ].
【００１５】上記実施例の炭塵濃度測定装置を複数地点
での測定に利用するときの測定装置の構成を図２に示
す。四箇所の各測定地点に設置される気体吸引管の試料
採取口１１ａ〜１１ｄの近傍にはそれぞれ燃焼部１２ａ
〜１２ｄが設けられ、各燃焼部１２ａ〜１２ｄを通過し
た気体は適宜の長さに設けられた配管を通って唯一の分
析部１５へ送られる。分析部１５の手前において、燃焼
後の各気体はそれぞれダストフィルタ１３ａ〜１３ｄを
通過した後に、切替弁２０ａ〜２０ｄにより選択的に切
り替えられる。そして選択された気体が分析部１５の試
料セルに導入されて、上述のように大気中のＣＯ2濃度
との比較により炭塵濃度が算出される。FIG. 2 shows the configuration of a measuring device when the coal dust concentration measuring device of the above embodiment is used for measurement at a plurality of points. Combustion sections 12a are provided near the sampling ports 11a to 11d of the gas suction pipes installed at the four measurement points, respectively.
To 12d are provided, and the gas that has passed through each of the combustion units 12a to 12d is sent to only one analysis unit 15 through a pipe provided in an appropriate length. Before the analysis unit 15, each gas after combustion passes through the dust filters 13a to 13d, and is selectively switched by the switching valves 20a to 20d. Then, the selected gas is introduced into the sample cell of the analysis unit 15, and the coal dust concentration is calculated by comparison with the atmospheric CO 2 concentration as described above.
【００１６】炭塵は配管の内壁等に付着する恐れがある
ため、試料採取口１１ａ〜１１ｄと燃焼部１２ａ〜１２
ｄとの間の配管長は極力短くしておくことが望ましい。
しかしながら、燃焼によりＣＯ2ガスに変換した後には
そのような恐れがないので、燃焼部１２ａ〜１２ｄと分
析部１５との間の配管長は、ポンプ１４にて吸引が可能
な範囲で自由に長くすることができる。Since coal dust may adhere to the inner wall of the pipe or the like, the sampling ports 11a to 11d and the combustion sections 12a to 12d
It is desirable to keep the length of the pipe between d and d as short as possible.
However, since there is no such danger after conversion into CO 2 gas by combustion, the length of the pipe between the combustion units 12 a to 12 d and the analysis unit 15 is freely long within a range where the pump 14 can suction. can do.
【００１７】なお、上記実施例では、分析部１５に試料
セル１５１と対照セル１５２とを並行に配置した比較流
通式赤外線ガス分析計を使用していたが、試料気体と比
較対照の大気とを相異なるＣＯ2ガス分析計を用いてそ
れぞれ測定し、その濃度差より炭塵濃度を算出するよう
に構成してもよい。In the above embodiment, the comparative flow type infrared gas analyzer in which the sample cell 151 and the control cell 152 are arranged in parallel in the analysis section 15 is used. Measurement may be performed using different CO 2 gas analyzers, and the coal dust concentration may be calculated from the concentration difference.
【００１８】また、試料気体と比較対照の大気とを選択
的に切り替え可能な弁を備え、該弁により選択した気体
を唯一の試料セルを有するＣＯ2ガス分析計に導入する
構成としてもよい。但し、この構成では時分割で各気体
のＣＯ2濃度を測定しなければならないので、上記実施
例のように連続的に炭塵濃度を測定することはできな
い。Further, a valve may be provided which can selectively switch between the sample gas and the atmosphere for comparison, and the gas selected by the valve may be introduced into a CO 2 gas analyzer having only one sample cell. However, in this configuration, since the CO 2 concentration of each gas must be measured in a time-division manner, the coal dust concentration cannot be measured continuously as in the above embodiment.
【００１９】更には、ＣＯ2ガス分析計としては赤外光
吸収によるもの以外のものも利用することができる。こ
の場合、気体中の粉塵の影響を受けずにＣＯ2濃度を測
定可能であれば、ダストフィルタを設けなくともよい。Further, a CO 2 gas analyzer other than that based on infrared light absorption can be used. In this case, if the CO 2 concentration can be measured without being affected by dust in the gas, the dust filter need not be provided.
【図１】 本発明による炭塵濃度測定装置の一実施例の
構成図。FIG. 1 is a configuration diagram of an embodiment of a coal dust concentration measuring device according to the present invention.
【図２】 本実施例による炭塵濃度測定装置を複数測定
地点での測定に利用した装置の構成図。FIG. 2 is a configuration diagram of an apparatus using the coal dust concentration measurement apparatus according to the present embodiment for measurement at a plurality of measurement points.
【図３】 従来の炭塵濃度測定装置の構成図。FIG. 3 is a configuration diagram of a conventional coal dust concentration measuring device.
１１、１１ａ〜１１ｄ…試料採取口 １２、１２ａ〜１２ｄ…燃焼部 １３、１３ａ〜１３ｄ、１７…ダストフィルタ １４、１８…ポンプ １５…分析部 １５１…試料セル １５２…対照セル １５３…光源部 １５４…回転セクタ １５５、１５６…検出部 １５７…演算部 １６…大気採取口 11, 11a to 11d: Sampling port 12, 12a to 12d: Combustion unit 13, 13a to 13d, 17: Dust filter 14, 18: Pump 15: Analysis unit 151: Sample cell 152: Control cell 153: Light source unit 154 ... Rotating sector 155, 156 ... Detector 157 ... Calculator 16 ... Atmosphere sampling port
Claims (1)
燃焼手段と、 b)燃焼後の試料気体中の二酸化炭素濃度を測定する第一
の測定手段と、 c)比較対照となる気体中の二酸化炭素濃度を測定する第
二の測定手段と、 d)前記第一及び第二の測定手段により測定された二酸化
炭素濃度の差に基づき前記試料気体中の炭塵濃度を算出
する演算手段と、 を備えることを特徴とする炭塵濃度測定装置。1. a) combustion means for burning a sample gas containing coal dust; b) first measuring means for measuring the concentration of carbon dioxide in the sample gas after burning; c) a comparison control A second measuring means for measuring the carbon dioxide concentration in the gas, d) an operation for calculating the coal dust concentration in the sample gas based on a difference between the carbon dioxide concentrations measured by the first and second measuring means. Means, for measuring the concentration of coal dust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9799497A JPH10281975A (en) | 1997-03-31 | 1997-03-31 | Coal dust concentration measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9799497A JPH10281975A (en) | 1997-03-31 | 1997-03-31 | Coal dust concentration measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10281975A true JPH10281975A (en) | 1998-10-23 |
Family
ID=14207231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9799497A Pending JPH10281975A (en) | 1997-03-31 | 1997-03-31 | Coal dust concentration measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10281975A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018153016A1 (en) * | 2017-02-23 | 2018-08-30 | 深圳市易特科信息技术有限公司 | Indoor air dust monitoring apparatus having alarm functionality |
| CN109254108A (en) * | 2017-07-12 | 2019-01-22 | 株式会社堀场制作所 | Analytical equipment and analysis method |
| JP2019020375A (en) * | 2017-07-12 | 2019-02-07 | 株式会社堀場製作所 | Analysis device |
| RU186970U1 (en) * | 2017-12-18 | 2019-02-12 | Дарья Анатольевна Трубицына | SENSOR FOR MEASURING DUST CONCENTRATION |
| CN109596473A (en) * | 2018-12-26 | 2019-04-09 | 复旦大学 | A kind of simulation system measuring Heavy Metals In Atmospheric Particles concentration |
| CN115032333A (en) * | 2022-05-11 | 2022-09-09 | 中国特种设备检测研究院 | Flare carbon emission monitoring system, flare carbon emission monitoring method, flare carbon emission monitoring apparatus, storage medium, and program product |
-
1997
- 1997-03-31 JP JP9799497A patent/JPH10281975A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018153016A1 (en) * | 2017-02-23 | 2018-08-30 | 深圳市易特科信息技术有限公司 | Indoor air dust monitoring apparatus having alarm functionality |
| CN109254108A (en) * | 2017-07-12 | 2019-01-22 | 株式会社堀场制作所 | Analytical equipment and analysis method |
| JP2019020375A (en) * | 2017-07-12 | 2019-02-07 | 株式会社堀場製作所 | Analysis device |
| CN109254108B (en) * | 2017-07-12 | 2023-02-17 | 株式会社堀场制作所 | Analysis device and analysis method |
| RU186970U1 (en) * | 2017-12-18 | 2019-02-12 | Дарья Анатольевна Трубицына | SENSOR FOR MEASURING DUST CONCENTRATION |
| CN109596473A (en) * | 2018-12-26 | 2019-04-09 | 复旦大学 | A kind of simulation system measuring Heavy Metals In Atmospheric Particles concentration |
| CN115032333A (en) * | 2022-05-11 | 2022-09-09 | 中国特种设备检测研究院 | Flare carbon emission monitoring system, flare carbon emission monitoring method, flare carbon emission monitoring apparatus, storage medium, and program product |
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