JPH11258155A - Method for measuring quantity of unburnt carbon of fly ash and apparatus therefor - Google Patents
Method for measuring quantity of unburnt carbon of fly ash and apparatus thereforInfo
- Publication number
- JPH11258155A JPH11258155A JP10065722A JP6572298A JPH11258155A JP H11258155 A JPH11258155 A JP H11258155A JP 10065722 A JP10065722 A JP 10065722A JP 6572298 A JP6572298 A JP 6572298A JP H11258155 A JPH11258155 A JP H11258155A
- Authority
- JP
- Japan
- Prior art keywords
- amount
- fly ash
- reflected light
- unburned carbon
- measuring
- 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.)
- Granted
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、センメント混和
材、人工軽量骨材等として利用されているフライアッシ
ュの、未燃炭素量を連続的に分析するための未燃炭素量
測定方法およびその装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for continuously measuring the unburned carbon content of fly ash used as a cement admixture, an artificial lightweight aggregate or the like. About.
【０００２】[0002]
【従来の技術】従来、フライアッシュの未燃炭素量は、
少量のフライアッシュをサンプリングし、分析建屋にて
人手を介して強熱減量方式（燃焼式）の手分析（実測）
を行っており、品質のすぐれたフライアッシュならびに
フライアッシュを効率よく、かつより多く回収するに
は、未燃炭素量の管理を昼夜連続して行う必要がある
が、最近の石炭焚きボイラの発電所においては、大型
化、多種類の石炭使用、１日数回のボイラ負加変動等に
より、困難となっている。2. Description of the Related Art Conventionally, the unburned carbon amount of fly ash is
Sampling a small amount of fly ash and manually analyzing the ignition loss method (combustion method) manually in the analysis building (actual measurement)
In order to efficiently and more efficiently collect high-quality fly ash and fly ash, it is necessary to manage the amount of unburned carbon continuously day and night. In some places, it has become difficult due to the increase in size, the use of various types of coal, and the boiler load fluctuation several times a day.
【０００３】この点の改善策として、フライアッシュを
自動サンプリングし、カプセルに入れて分析建屋まで空
気搬送し、分析装置で未燃炭素量自動分析を行う方法
（特公平 5-63239号公報）や、煙道ガス中からサンプリ
ングチューブを用いて煙道ガスを採取し計測セルに挿入
されたろ紙上にフライアッシュのサンプリングを行い、
一定光源下におけるフライアッシュの反射強度から未燃
炭素量を推定演算する方法（特開昭62-217143 号公報、
特開平 2-130453 号公報、特開平 5-322718 号公報）等
がある。[0003] As a measure for improving this point, a method of automatically sampling fly ash, putting it in a capsule, conveying the air to an analysis building, and automatically analyzing unburned carbon by an analyzer (Japanese Patent Publication No. 5-63239), The flue gas was collected from the flue gas using a sampling tube, and fly ash was sampled on the filter paper inserted in the measurement cell.
A method of estimating and calculating the amount of unburned carbon from the reflection intensity of fly ash under a constant light source (JP-A-62-217143,
JP-A-2-130453 and JP-A-5-322718).
【０００４】〔問題点〕しかしながら、これらはいずれ
も、下記問題点がある。 付帯設備が多く、設備全体に高額の投資を要する。 メンテナンスに人手がかかる。 付帯設備の１つでも故障すれば設備全体が稼働でき
なくなるため非稼働時間が多い。[Problems] However, all of them have the following problems. There are many ancillary facilities, and high investment is required for the entire facility. Maintenance is labor-intensive. If even one of the incidental facilities breaks down, the entire facility will not be able to operate, so there will be many non-operational hours.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、従来の技術
における問題点に鑑みて成されたもので、この問題点を
解消するため具体的に設定された課題は、少額の設備投
資で済み、メンテナンスが容易であり、稼働率が高く、
かつオンライン測定や装置の維持が容易となるフライア
ッシュの未燃炭素量測定方法およびその装置を提供する
ことにある。DISCLOSURE OF THE INVENTION The present invention has been made in view of the problems in the prior art, and an object specifically set to solve the problems is a small capital investment. , Easy maintenance, high availability,
Another object of the present invention is to provide a method and an apparatus for measuring the unburned carbon content of fly ash, which facilitate online measurement and maintenance of the apparatus.
【０００６】[0006]
【課題を解決するための手段】本発明における請求項１
に係るフライアッシュの未燃炭素量測定方法は、青色発
光体を光源とした反射光量測定装置を用いて測定したフ
ライアッシュの反射光量の測定値から、予め作成された
反射光量と未燃炭素量とを対応させる検量線に基づき、
フライアッシュの未燃炭素量を求めることを特徴とする
ものである。Means for Solving the Problems Claim 1 of the present invention
The method for measuring the unburned carbon amount of fly ash according to the present invention is based on the reflected light amount and unburned carbon amount created in advance from the measured value of the reflected light amount of fly ash measured using a reflected light amount measuring device using a blue light emitter as a light source. Based on the calibration curve that corresponds to
It is characterized in that the unburned carbon content of fly ash is obtained.
【０００７】また、請求項２に係るフライアッシュの未
燃炭素量測定装置は、搬送路から分岐させて配設したサ
ンプリング装置と、このサンプリング装置の後端部に設
けた反射光量測定用プローブと、反射光量を得るための
光源と、反射光量測定用プローブからの出力信号を増幅
する増幅器とから構成され、この増幅器の出力から、予
め作成された反射光量と未燃炭素量とを対応させる検量
線に基づき、未燃炭素量を連続的に求めることを特徴と
するものである。According to a second aspect of the present invention, there is provided an apparatus for measuring the amount of unburned carbon in fly ash, comprising a sampling device branched from a conveying path and a probe for measuring the amount of reflected light provided at a rear end of the sampling device. A light source for obtaining the amount of reflected light, and an amplifier for amplifying the output signal from the probe for measuring the amount of reflected light. From the output of this amplifier, a calibration that matches the amount of reflected light and the amount of unburned carbon prepared in advance. It is characterized in that the unburned carbon amount is continuously obtained based on the line.
【０００８】また、請求項３に係るフライアッシュの未
燃炭素量測定装置は、前記反射光量を得るための光源を
青色発光体とすることを特徴とする。[0008] The apparatus for measuring the amount of unburned carbon in fly ash according to claim 3 is characterized in that the light source for obtaining the amount of reflected light is a blue luminous body.
【０００９】[0009]
【発明の実施の形態】以下、本発明の実施の形態を具体
的に説明する。ただし、この実施の形態は、本発明の趣
旨をより良く理解させるため具体的に説明するもので、
特に指定のない限り、発明内容を限定するものではな
い。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below. However, this embodiment is specifically described for better understanding of the gist of the present invention.
The contents of the invention are not limited unless otherwise specified.
【００１０】フライアッシュの未燃炭素量の測定におけ
るフライアッシュの反射光量に影響を与える因子は、次
の３つである。すなわち、 フライアッシュの粉末度 フライアッシュの未燃炭素量 その他 そして、この中の因子で、主にフライアッシュの未燃
炭素量の影響が強く、未燃炭素量が大きくなると反射光
量が小さくなるので、この点を利用して、フライアッシ
ュの反射光量の測定値から、予め作成された反射光量と
未燃炭素量とを対応させる検量線に基づき、未燃炭素量
を特定することにしたものである。The following three factors affect the amount of reflected fly ash in measuring the unburned carbon content of fly ash. In other words, the fineness of fly ash The unburned carbon content of fly ash Others Among these factors, the effect of the unburned carbon content of fly ash is strong, and the reflected light quantity decreases as the unburned carbon content increases. Utilizing this point, from the measured value of the reflected light amount of fly ash, the amount of unburned carbon is determined based on a calibration curve that associates the amount of reflected light with the amount of unburned carbon created in advance. is there.
【００１１】この方法を適用する未燃炭素量測定装置
は、図１に示すように、フライアッシュ貯蔵サイロ１１
からフライアッシュ分級設備１２までの前段搬送路１３
と後段搬送路１４との間に、前段搬送路１３から分岐し
て、後段搬送路１４へ接続する分岐路を形成してフライ
アッシュの反射光量を測定しやすくしたサンプリング装
置１と、サンプリング装置１に供給されたフライアッシ
ュの反射光量を得るための光源２と、サンプリング装置
１に供給されたフライアッシュの反射光量を測定する反
射光量測定用プローブ３と、反射光量測定用プローブ３
からの出力信号を増幅して送信する増幅器（アンプ）４
と、アンプの出力信号を入力して、予め作成された反射
光量と未燃炭素量とを対応させる検量線に基づき未燃炭
素量を求める計算機５とを備える。As shown in FIG. 1, an unburned carbon measuring apparatus to which this method is applied is a fly ash storage silo 11.
Pre-conveyance path 13 from ash to fly ash classification equipment 12
A sampling device 1 that branches off from the front conveyance path 13 and connects to the rear conveyance path 14 between the first and second conveyance paths 14 to facilitate measurement of the amount of reflected fly ash; A light source 2 for obtaining the reflected light amount of the fly ash supplied to the sampler 1, a reflected light amount measuring probe 3 for measuring the reflected light amount of the fly ash supplied to the sampling device 1, and a reflected light amount measuring probe 3
(Amplifier) 4 for amplifying and transmitting the output signal from
And a calculator 5 which receives an output signal of the amplifier and obtains the unburned carbon amount based on a calibration curve which previously associates the reflected light amount with the unburned carbon amount.
【００１２】サンプリング装置１は、図２に示すよう
に、前段搬送路１３から分岐した分岐シュート１５と、
水平に設置して分岐搬送されてきたフライアッシュの密
度を高め流速を１ｍ／ｍｉｎ以下に遅くして搬送するス
クリューコンベア１６と、このスクリューコンベア１６
の出口から後段搬送路１４へ接続する分岐出口配管１７
とからなる。スクリューコンベア１６には、スクリュー
１６ａを駆動するためのモータ１６ｂと、スクリューコ
ンベア１６の出口部で反射光量を測定できるようにする
ためのプローブ挿入口１６ｃとを設ける。As shown in FIG. 2, the sampling device 1 includes a branch chute 15 branched from the preceding conveyance path 13,
A screw conveyor 16 that is installed horizontally to increase the density of fly ash that has been diverted and conveyed, and to convey the flow at a flow rate of 1 m / min or less;
Outlet pipe 17 that connects from the outlet to the downstream conveyance path 14
Consists of The screw conveyor 16 is provided with a motor 16b for driving the screw 16a and a probe insertion port 16c for measuring the amount of reflected light at the outlet of the screw conveyor 16.
【００１３】このように構成した未燃炭素量測定装置に
より、フライアッシュの未燃炭素量を得るため、予め検
量線の設定と光源の選定を行う。〔検量線の設定〕フ
ライアッシュは粉末度等の品質の変動に係わらず、反射
光量と未燃炭素量が一定関係にあること（図３）を利用
し、未燃炭素量を求める検量線は、次の式（１）により
与えられる。すなわち、反射光量に基づく出力電圧をＬ
とし、係数ａ，ｂとすれば、未燃炭素量Ｙは、In order to obtain the unburned carbon amount of fly ash by the unburned carbon amount measuring apparatus thus configured, a calibration curve is set and a light source is selected in advance. [Setting of calibration curve] Regarding fly ash, the calibration curve for obtaining the unburned carbon amount is based on the fact that the amount of reflected light and the unburned carbon amount are in a fixed relationship regardless of the variation in quality such as fineness (FIG. 3). , Given by the following equation (1). That is, the output voltage based on the amount of reflected light is L
And the coefficients a and b, the unburned carbon amount Y is
【００１４】[0014]
【数１】Ｙ＝ａ・Ｌ＋ｂ … （１） と表される。したがって、この検量線によりフライアッ
シュの反射光量から未燃炭素量を正確に求めることがで
きる。Y = a · L + b (1) Therefore, the amount of unburned carbon can be accurately obtained from the amount of reflected fly ash using this calibration curve.
【００１５】〔光源の選定〕また、フライアッシュの反
射光量を得るための光源とピーク波長については、赤色
発光体 660ｎｍ，緑色発光体 560ｎｍ，青色発光体 450
ｎｍ，黄色発光体 570ｎｍを各々ピーク波長とする光源
により得られた反射光量に基づく出力電圧を、 ＬＲ；光源ピーク波長 660ｎｍによる反射光量 ＬＧ；光源ピーク波長 560ｎｍによる反射光量 ＬＢ；光源ピーク波長 450ｎｍによる反射光量 ＬＹ；光源ピーク波長 570ｎｍによる反射光量 とし、これら各光源での検量線の係数を求め、各検量線
からの未燃炭素量測定値Ｙと手分析（実測）による未燃
炭素量の偏差が最少となる最適な光源が、青色発光体
で、そのピーク波長が 450ｎｍである（表１）。この光
源を用いることにより、前述のフライアッシュの反射光
量に影響を与える３因子の中のその他が反射光量に与
える影響を、最も小さくできることを見い出した。[Selection of Light Source] The light sources and peak wavelengths for obtaining the reflected light amount of fly ash are as follows: red light emitter 660 nm, green light emitter 560 nm, blue light emitter 450
The output voltage based on the amount of reflected light obtained by the light source having peak wavelengths of 570 nm and 570 nm, respectively, is LR; the amount of reflected light at a light source peak wavelength of 660 nm LG; the amount of reflected light at a light source peak wavelength of 560 nm LB; Reflected light quantity LY: The reflected light quantity at the light source peak wavelength of 570 nm, the coefficient of the calibration curve at each light source is determined, and the deviation between the unburned carbon measured value Y from each calibration curve and the unburned carbon quantity by manual analysis (actual measurement) The optimal light source that minimizes the blue light is the blue light emitter, and its peak wavelength is 450 nm (Table 1). It has been found that the use of this light source can minimize the effect of the other factors on the amount of reflected light among the three factors that affect the amount of reflected fly ash.
【００１６】[0016]
【表１】 [Table 1]
【００１７】数日に渡って収集した反射光量に基づく出
力電圧Ｌと手分析（実測）による未燃炭素量から求めた
検量線の係数ａ，ｂの具体的な値は、次のようになっ
た。The specific values of the coefficients a and b of the calibration curve obtained from the output voltage L based on the amount of reflected light collected over several days and the unburned carbon amount by manual analysis (actual measurement) are as follows. Was.
【数２】ａ＝−0.234 … （２）## EQU2 ## a = −0.234 (2)
【数３】ｂ＝ 3.160 … （３）## EQU3 ## b = 3.160 (3)
【００１８】〔測定精度〕求めた検量線から得られた測
定値と手分析（実測）による未燃炭素量の相関は図４に
示すように強く、その偏差は 0.046％となり、正確な未
燃炭素量を求められることが確認できた。[Measurement Accuracy] The correlation between the measured value obtained from the obtained calibration curve and the unburned carbon amount by manual analysis (actual measurement) is strong as shown in FIG. It was confirmed that the amount of carbon was required.
【００１９】〔作用効果〕以上のように、 搬送路に設けたサンプリング装置と、このサンプリ
ング装置の後端部に設けた反射光量測定用プローブと、
反射光量を得るための光源と、反射光量測定用プローブ
からの出力信号を増幅する増幅器とからフライアッシュ
の反射光量測定装置を構成し、[Operation and Effect] As described above, the sampling device provided on the transport path, the reflected light amount measuring probe provided at the rear end of the sampling device,
A light source for obtaining the reflected light amount and an amplifier for amplifying the output signal from the reflected light amount measuring probe constitute a reflected light amount measuring device of fly ash,
【００２０】 未燃炭素量測定値と実測による未燃炭
素量測定値の偏差が最少となる反射光量を得るための光
源として、他の成分の全反射光量への影響が少ないこと
を考慮してピーク波長 450ｎｍの青色発光体を用い、As a light source for obtaining a reflected light amount that minimizes a deviation between the measured value of the unburned carbon amount and the measured value of the measured amount of unburned carbon, taking into account that the influence of other components on the total reflected light amount is small. Using a blue light emitter with a peak wavelength of 450 nm,
【００２１】 フライアッシュの反射光量の測定値か
ら、予め作成された反射光量と未燃炭素量とを対応させ
る検量線に基づき、フライアッシュの未燃炭素量を求め
ることにより、フライアッシュの反射光量をオンライン
で測定し、その結果から、正確にフライアッシュの未燃
炭素量が求められる。The amount of unburned carbon of fly ash is obtained from the measured value of the amount of reflected light of fly ash based on a calibration curve prepared in advance, which associates the amount of reflected light with the amount of unburned carbon. Is measured online, and the unburned carbon content of the fly ash is accurately obtained from the result.
【００２２】これにより、以下のような効果が挙げられ
る。 フライアッシュの反射光量の測定値から、予め作成
された反射光量と未燃炭素量とを対応させる検量線に基
づき、フライアッシュの未燃炭素量を正確に求めること
ができる。As a result, the following effects can be obtained. From the measured value of the reflected light amount of the fly ash, the unburned carbon amount of the fly ash can be accurately obtained based on a calibration curve which previously associates the reflected light amount with the unburned carbon amount.
【００２３】 付帯設備が少なく、設備に高額の投資
を要せず、メンテナンスに人手を要せず、非稼働時間を
少なくし、フライアッシュの未燃炭素量を、容易に実時
間で連続的に求めることができる。The number of incidental equipment is small, the equipment does not require a large investment, the maintenance is not required, the non-operation time is reduced, and the unburned carbon amount of the fly ash can be easily and continuously reduced in real time. You can ask.
【００２４】 フライアッシュの未燃炭素量を正確に
求められることにより、コンクリート用フライアッシュ
（ JIS A 6201 ）に於ける品質規格のうち、未燃炭素含
有量が関係してくる強熱減量については、規格値が 5.0
％以下となっており、この規格に対する品質管理が低コ
ストで厳密に行える。By accurately determining the unburned carbon content of fly ash, among the quality standards of fly ash for concrete (JIS A 6201), the ignition loss related to the unburned carbon content is one of the quality standards. , The standard value is 5.0
%, And quality control for this standard can be strictly performed at low cost.
【００２５】 このため、建設分野における現状で
は、生コンクリート又は現場打設コンクリートについ
て、ＡＥ剤（空気連行剤）、減水剤、流動化剤、遅延剤
等の化学混和剤を使用することが不可欠になっており、
この際、フライアッシュセメントを用いたコンクリート
あるいはフライアッシュを混和材料として配合したコン
クリートにおいては、フライアッシュ中の未燃炭素が活
性炭の如く化学混和剤を吸着してしまい、混和剤の作用
効果が損なわれるため、所望の品質のコンクリートが得
られなくなるというというようなフライアッシュの未燃
炭素量に起因する品質上の問題点を解消することがで
き、フライアッシュセメントを用いたコンクリートある
いはフライアッシュを混和材料として配合したコンクリ
ートの有効利用が促進される。Therefore, at present in the construction field, for ready-mixed concrete or cast-in-place concrete, it is essential to use a chemical admixture such as an AE agent (air entraining agent), a water reducing agent, a fluidizing agent, and a retarder. Has become
At this time, in concrete using fly ash cement or concrete containing fly ash as an admixture, unburned carbon in the fly ash adsorbs the chemical admixture like activated carbon, and the effect of the admixture is impaired. Therefore, it is possible to solve the quality problem due to the unburned carbon content of fly ash such that the concrete of the desired quality cannot be obtained, and the concrete or fly ash using fly ash cement is mixed. Effective utilization of concrete mixed as a material is promoted.
【００２６】[0026]
【発明の効果】以上のように本発明では、請求項１に係
るフライアッシュの未燃炭素量測定方法では、青色発光
体を光源とした反射光量測定装置を用いて測定したフラ
イアッシュの反射光量の測定値から、予め作成された反
射光量と未燃炭素量とを対応させる検量線に基づき、フ
ライアッシュの未燃炭素量を求めることにより、フライ
アッシュの反射光量を測定することで未燃炭素量が正確
に求められ、簡易かつ迅速に、そして正確に反射光量が
測定できて容易に未燃炭素量を精度良く求めることがで
き、大幅な設備投資が必要なくなり、設備の運用を安価
にすることができる。As described above, according to the present invention, in the method for measuring the unburned carbon content of fly ash according to the first aspect, the reflected light quantity of fly ash measured using a reflected light quantity measuring device using a blue light emitter as a light source. The amount of unburned carbon of fly ash is determined based on a calibration curve that previously associates the amount of reflected light with the amount of unburned carbon from the measured values of The amount is accurately obtained, the amount of reflected light can be measured easily and quickly and accurately, and the amount of unburned carbon can be easily obtained with high accuracy. This eliminates the need for significant capital investment and makes equipment operation inexpensive. be able to.
【００２７】また、請求項２に係るフライアッシュの未
燃炭素量測定装置では、搬送路から分岐させたサンプリ
ング装置の後端部で反射光量測定用プローブによりフラ
イアッシュの反射光量を測定し、反射光量測定用プロー
ブからの出力信号を増幅器により増幅して、予め作成さ
れた反射光量と未燃炭素量とを対応させる検量線に基づ
き未燃炭素量を簡易かつ迅速に、そして連続的に求める
ことができ、設備投資を少額に抑え、メンテナンスを簡
素化し、設備の稼働率を向上させることができる。In the apparatus for measuring the amount of unburned carbon in fly ash according to the second aspect, the reflected light amount of the fly ash is measured by a reflected light amount measuring probe at the rear end of the sampling device branched from the conveying path, and the reflected light is reflected. Amplifying the output signal from the light intensity measurement probe with an amplifier, and obtaining the unburned carbon amount simply, quickly, and continuously based on a calibration curve prepared in advance that associates the reflected light amount with the unburned carbon amount. This makes it possible to reduce capital investment, simplify maintenance, and improve equipment operation rates.
【００２８】また、請求項３に係るフライアッシュの未
燃炭素量測定装置では、反射光量を得るための光源を青
色発光体としたことによって、炭素以外の成分に対する
吸収性が高く、他の成分の全反射光量への影響が少ない
ため、未燃炭素量の測定値と実測値との偏差が最も小さ
くなり、未燃炭素量の正確な測定が精度良くできる。In the apparatus for measuring the amount of unburned carbon in fly ash according to the third aspect, the light source for obtaining the amount of reflected light is a blue luminous body, so that it has high absorbency for components other than carbon, Has little effect on the total reflection light amount, the deviation between the measured value of the unburned carbon amount and the actually measured value is minimized, and the accurate measurement of the unburned carbon amount can be performed accurately.
【図１】本発明の実施の形態におけるシステム構成図で
ある。FIG. 1 is a system configuration diagram according to an embodiment of the present invention.
【図２】実施の形態におけるサンプリング装置を示す構
成図である。FIG. 2 is a configuration diagram illustrating a sampling device according to an embodiment.
【図３】実施の形態におけるフライアッシュにおける反
射光量と未燃炭素量実測値の関係を示すグラフである。FIG. 3 is a graph showing the relationship between the amount of reflected light from fly ash and the measured value of unburned carbon in the embodiment.
【図４】実施の形態におけるフライアッシュの未燃炭素
量の推定値と実測値の関係を示すグラフである。FIG. 4 is a graph showing a relationship between an estimated value and an actually measured value of the unburned carbon amount of fly ash in the embodiment.
１ サンプリング装置 ２ 光源 ３ プローブ ４ 増幅器（アンプ） ５ 計算機 １１ フライアッシュ貯蔵サイロ １２ フライアッシュ分級設備 １３ 前段搬送機 １４ 後段搬送機 DESCRIPTION OF SYMBOLS 1 Sampling device 2 Light source 3 Probe 4 Amplifier (Amplifier) 5 Computer 11 Fly ash storage silo 12 Fly ash classification equipment 13 Front stage transporter 14 Rear stage transporter
─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成１１年３月５日[Submission date] March 5, 1999
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】特許請求の範囲[Correction target item name] Claims
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【特許請求の範囲】[Claims]
【手続補正２】[Procedure amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００７[Correction target item name] 0007
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【０００７】また、請求項２に係るフライアッシュの未
燃炭素量測定装置は、搬送路から分岐させて配設したサ
ンプリング装置と、このサンプリング装置の後端部に設
けた反射光量測定用プローブと、反射光量を得るための
青色発光体からなる光源と、前記反射光量測定用プロー
ブからの出力信号を増幅する増幅器と、この増幅器の出
力から、予め作成された反射光量と未燃炭素量とを対応
させる検量線に基づき、未燃炭素量を連続的に求める計
算機とからなることを特徴とするものである。According to a second aspect of the present invention, there is provided an apparatus for measuring the amount of unburned carbon in fly ash, comprising a sampling device branched from a conveying path and a probe for measuring the amount of reflected light provided at a rear end of the sampling device. A light source composed of a blue light emitter for obtaining a reflected light amount, an amplifier for amplifying an output signal from the reflected light amount measuring probe, and a reflected light amount and an unburned carbon amount prepared in advance from the output of the amplifier. And a computer for continuously calculating the unburned carbon amount based on the corresponding calibration curve.
【手続補正３】[Procedure amendment 3]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００８[Correction target item name] 0008
【補正方法】削除[Correction method] Deleted
【手続補正４】[Procedure amendment 4]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００２６[Correction target item name] 0026
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００２６】[0026]
【発明の効果】以上のように本発明では、請求項１に係
るフライアッシュの未燃炭素量測定方法では、青色発光
体を光源とした反射光量測定装置を用いて測定したフラ
イアッシュの反射光量の測定値から、予め作成された反
射光量と未燃炭素量とを対応させる検量線に基づき、フ
ライアッシュの未燃炭素量を求めることにより、他の成
分の全反射光量への影響を少なくしてフライアッシュの
反射光量を測定するので未燃炭素量を正確に求めること
ができる。As described above, according to the present invention, in the method for measuring the unburned carbon content of fly ash according to claim 1, the reflected light quantity of fly ash measured using a reflected light quantity measuring device using a blue light emitter as a light source. By determining the unburned carbon amount of fly ash based on the calibration curve that previously associates the reflected light amount with the unburned carbon amount from the measured values, the influence of other components on the total reflected light amount is reduced. Since the amount of reflected fly ash is measured, the amount of unburned carbon can be accurately obtained.
【手続補正５】[Procedure amendment 5]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００２７[Correction target item name] 0027
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００２７】また、請求項２に係るフライアッシュの未
燃炭素量測定装置では、搬送路から分岐させて配設した
サンプリング装置と、このサンプリング装置の後端部に
設けた反射光量測定用プローブと、反射光量を得るため
の青色発光体からなる光源と、前記反射光量測定用プロ
ーブからの出力信号を増幅する増幅器と、この増幅器の
出力から、予め作成された反射光量と未燃炭素量とを対
応させる検量線に基づき、未燃炭素量を連続的に求める
計算機とからなることから、他の成分の全反射光量への
影響を少なくしてフライアッシュ中の未燃炭素量の測定
値と実測値との偏差を最も小さくできるので、簡易かつ
迅速に、そして連続的に精度良くフライアッシュの未燃
炭素量を求めることができ、設備投資を小額に抑え、メ
ンテナンスを簡素化し、設備の稼働率を向上させること
ができる。According to a second aspect of the present invention, there is provided an apparatus for measuring the amount of unburned carbon in fly ash, comprising a sampling device branched from a conveying path and a reflected light amount measuring probe provided at a rear end of the sampling device. A light source composed of a blue light emitter for obtaining a reflected light amount, an amplifier for amplifying an output signal from the reflected light amount measuring probe, and a reflected light amount and an unburned carbon amount prepared in advance from the output of the amplifier. Since it consists of a computer that continuously calculates the amount of unburned carbon based on the corresponding calibration curve, the effect of other components on the total reflected light amount is reduced, and the measured value of the unburned carbon amount in fly ash and the actual measurement Since the deviation from the value can be minimized, the unburned carbon content of fly ash can be obtained easily, quickly and continuously with high accuracy, minimizing capital investment and simplifying maintenance. And, it is possible to improve the operating rate of the equipment.
【手続補正６】[Procedure amendment 6]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００２８[Correction target item name] 0028
【補正方法】削除[Correction method] Deleted
Claims (3)
を用いて測定したフライアッシュの反射光量の測定値か
ら、予め作成された反射光量と未燃炭素量とを対応させ
る検量線に基づき、フライアッシュの未燃炭素量を求め
ることを特徴とするフライアッシュ未燃炭素量測定方
法。1. A method for measuring the amount of reflected light of fly ash, which is measured using a reflected light amount measuring device using a blue light emitter as a light source, based on a calibration curve which previously associates the amount of reflected light with the amount of unburned carbon. And measuring the amount of unburned carbon in fly ash.
グ装置と、このサンプリング装置の後端部に設けた反射
光量測定用プローブと、反射光量を得るための光源と、
反射光量測定用プローブからの出力信号を増幅する増幅
器とから構成され、この増幅器の出力から、予め作成さ
れた反射光量と未燃炭素量とを対応させる検量線に基づ
き、未燃炭素量を連続的に求めることを特徴とするフラ
イアッシュの未燃炭素量測定装置。2. A sampling device branched from a transport path, a probe for measuring a reflected light amount provided at a rear end of the sampling device, and a light source for obtaining a reflected light amount.
And an amplifier for amplifying the output signal from the reflected light amount measuring probe.The output of the amplifier is used to continuously calculate the unburned carbon amount based on a calibration curve which previously associates the reflected light amount with the unburned carbon amount. An apparatus for measuring unburned carbon content of fly ash, which is characterized by the following:
体とすることを特徴とする請求項２記載のフライアッシ
ュの未燃炭素量測定装置。3. The apparatus for measuring the amount of unburned carbon in fly ash according to claim 2, wherein the light source for obtaining the amount of reflected light is a blue light emitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10065722A JP2949096B1 (en) | 1998-03-16 | 1998-03-16 | Method and apparatus for measuring unburned carbon content of fly ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10065722A JP2949096B1 (en) | 1998-03-16 | 1998-03-16 | Method and apparatus for measuring unburned carbon content of fly ash |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2949096B1 JP2949096B1 (en) | 1999-09-13 |
| JPH11258155A true JPH11258155A (en) | 1999-09-24 |
Family
ID=13295206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10065722A Expired - Fee Related JP2949096B1 (en) | 1998-03-16 | 1998-03-16 | Method and apparatus for measuring unburned carbon content of fly ash |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2949096B1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007217244A (en) * | 2006-02-17 | 2007-08-30 | Umetani Shoji:Kk | Quality control method of concrete admixture |
| KR100841058B1 (en) | 2006-05-29 | 2008-06-24 | 한국서부발전 주식회사 | Method for the prearranged estimation of unburned carbon from boiler in the standard coal-thermal power plant |
| JP2010043933A (en) * | 2008-08-12 | 2010-02-25 | Shimizu Corp | Quality evaluation method of fly ash |
| JP2016049475A (en) * | 2014-08-28 | 2016-04-11 | 公益財団法人北九州産業学術推進機構 | Unburned carbon recovery method and flotation separator |
-
1998
- 1998-03-16 JP JP10065722A patent/JP2949096B1/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007217244A (en) * | 2006-02-17 | 2007-08-30 | Umetani Shoji:Kk | Quality control method of concrete admixture |
| KR100841058B1 (en) | 2006-05-29 | 2008-06-24 | 한국서부발전 주식회사 | Method for the prearranged estimation of unburned carbon from boiler in the standard coal-thermal power plant |
| JP2010043933A (en) * | 2008-08-12 | 2010-02-25 | Shimizu Corp | Quality evaluation method of fly ash |
| JP2016049475A (en) * | 2014-08-28 | 2016-04-11 | 公益財団法人北九州産業学術推進機構 | Unburned carbon recovery method and flotation separator |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2949096B1 (en) | 1999-09-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2003287477A (en) | Exhaust emission analysis system and method for correcting measurement of exhaust emission | |
| JP4156517B2 (en) | Control method of dilution air supply, sampling method of exhaust particles | |
| Song et al. | Deletion of the prorenin receptor from the ureteric bud causes renal hypodysplasia | |
| JP3001496B2 (en) | Method and apparatus for measuring unburned carbon content of classified fly ash | |
| JPH0692935B2 (en) | Non-dispersive infrared gas analyzer | |
| JP2949096B1 (en) | Method and apparatus for measuring unburned carbon content of fly ash | |
| WO2007041274A3 (en) | Sampler for engine exhaust dilution | |
| CN109716092A (en) | For measuring the gas transport unit of the waste-gas analysis unit of engine exhaust gas | |
| EP0715167A3 (en) | Apparatus for analyzing air/fuel ratio sensor characteristics | |
| EP0823259A3 (en) | Automatic air wash for anesthesia system | |
| EP0096557B1 (en) | Determining the concentration of oxygen and combustibles within a gas | |
| EP0857967A3 (en) | Apparatus for high oxygen concentration measurement using limiting current oxygen sensor | |
| JP2001318089A (en) | Total organic carbon meter | |
| GB1453938A (en) | Monitoring of a gas stream | |
| Gilchrist et al. | Effect of granulocyte-macrophage colony-stimulating factor deficiency on ovarian follicular cell function | |
| JP3854516B2 (en) | Ashes unburnt measurement device | |
| US5227037A (en) | Method and apparatus for measuring quantity of admixture in ready-mixed concrete | |
| JPH10281975A (en) | Coal dust concentration measuring device | |
| JP3530515B2 (en) | Unburned ash measurement device | |
| JP2912970B2 (en) | Unburned ash measurement device | |
| JP4119624B2 (en) | Measurement system for unburned ash | |
| JP4009025B2 (en) | Oxidant meter calibration method, calibration system, and ozone generator | |
| JP4300350B2 (en) | Exhaust gas measuring device and exhaust gas measuring method | |
| EP1408325A3 (en) | Method of measuring exhaust flow constituents | |
| JPS61501044A (en) | Improvements in or related to burner operation monitoring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080702 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090702 Year of fee payment: 10 |
|
| LAPS | Cancellation because of no payment of annual fees |