JP2003177095A - Coal ash content-analyzing apparatus - Google Patents
Coal ash content-analyzing apparatusInfo
- Publication number
- JP2003177095A JP2003177095A JP2001377078A JP2001377078A JP2003177095A JP 2003177095 A JP2003177095 A JP 2003177095A JP 2001377078 A JP2001377078 A JP 2001377078A JP 2001377078 A JP2001377078 A JP 2001377078A JP 2003177095 A JP2003177095 A JP 2003177095A
- Authority
- JP
- Japan
- Prior art keywords
- coal ash
- particle size
- size distribution
- measuring instrument
- solid
- 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.)
- Withdrawn
Links
- 239000010883 coal ash Substances 0.000 title claims abstract description 184
- 239000000203 mixture Substances 0.000 claims abstract description 48
- 239000002245 particle Substances 0.000 claims description 130
- 238000004458 analytical method Methods 0.000 claims description 6
- 238000002536 laser-induced breakdown spectroscopy Methods 0.000 abstract description 46
- 230000032258 transport Effects 0.000 abstract description 11
- 230000009049 secondary transport Effects 0.000 abstract description 10
- 239000007787 solid Substances 0.000 abstract description 6
- 239000000284 extract Substances 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 description 23
- 238000012546 transfer Methods 0.000 description 17
- 238000000034 method Methods 0.000 description 10
- 230000015556 catabolic process Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000012937 correction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 210000004556 brain Anatomy 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 238000007865 diluting Methods 0.000 description 2
- 101100002917 Caenorhabditis elegans ash-2 gene Proteins 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 102100033040 Carbonic anhydrase 12 Human genes 0.000 description 1
- 101000867855 Homo sapiens Carbonic anhydrase 12 Proteins 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、流動中の石炭灰
を分析する石炭灰分析装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coal ash analyzer for analyzing a flowing coal ash.
【０００２】[0002]
【従来の技術】石炭焚きボイラより排出される石炭灰
は、セメントの混和材、耐火煉瓦等として広く有効利用
されている。石炭灰を利用するにあたっては、石炭灰の
元素組成や粒度等の成分分析をし、その利用用途に応じ
て、所定の規格に入る石炭灰だけが分別されて使用され
る。石炭灰の有効利用を図るためには、品質の安定した
石炭灰を効率よく回収する必要があり、精度がよく効率
的な成分分析を行うことができる石炭灰分析装置が望ま
れている。特開平７−２８０７０９号公報には、蛍光Ｘ
線計や未燃炭素計を用いた石炭灰の自動分析装置が提案
されているが、捕集した石炭灰をサンプリングして分析
装置が設置されている建物まで移送する必要があり、装
置が複雑になり迅速化には限界がある。また、特開平９
−１５５２９３号公報には、レーザ誘起ブレークダウン
方法（Laser Induced Breakdown Spectroscopy：以下Ｌ
ＩＢＳ方法とする）を用いて、石炭灰の元素組成をオン
ラインで計測する石炭灰処理方法が提案されている。2. Description of the Related Art Coal ash discharged from a coal-fired boiler is widely and effectively used as an admixture for cement, refractory bricks and the like. When using the coal ash, the elemental composition and particle size of the coal ash are analyzed, and only the coal ash that falls within a predetermined standard is sorted and used according to the application. In order to effectively utilize coal ash, it is necessary to efficiently collect coal ash with stable quality, and a coal ash analyzer capable of performing accurate and efficient component analysis is desired. Japanese Patent Application Laid-Open No. 7-280709 discloses fluorescence X.
An automatic analyzer for coal ash using a line meter or an unburned carbon meter has been proposed, but it is necessary to sample the collected coal ash and transfer it to the building where the analyzer is installed. There is a limit to speeding up. In addition, JP-A-9
-155293 discloses a laser-induced breakdown method (hereinafter referred to as "L-Induced Breakdown Spectroscopy").
IBS method) has been proposed to measure the elemental composition of coal ash online.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、このＬ
ＩＢＳ方法を用いた石炭灰処理方法では、石炭灰の元素
組成を計測できるものの、同時に石炭灰の粒度を計測す
ることはできないという課題がある。また、石炭灰の元
素組成や粒度を分析するあたり、石炭灰分析装置に導入
される石炭灰の固気比によって分析精度が異なるという
課題がある。この発明は、このような課題を解決するた
めになされたもので、石炭灰の粒度及び石炭灰の元素組
成を同時に分析できる石炭灰分析装置を提供することを
目的とする。However, this L
The coal ash treatment method using the IBS method has a problem in that although the elemental composition of the coal ash can be measured, the particle size of the coal ash cannot be measured at the same time. In addition, when analyzing the elemental composition and particle size of the coal ash, there is a problem that the analysis accuracy differs depending on the solid-gas ratio of the coal ash introduced into the coal ash analyzer. The present invention has been made to solve such a problem, and an object thereof is to provide a coal ash analyzer capable of simultaneously analyzing the particle size of coal ash and the elemental composition of coal ash.
【０００４】[0004]
【課題を解決するための手段】上述の目的を達成するた
め、この発明に係る石炭灰分析装置は、流動中の石炭灰
を分析する石炭灰分析装置であって、石炭灰の粒度分布
を計測するレーザ回折方式の粒度分布計測器と、石炭灰
の元素組成を計測するレーザ誘起ブレークダウン方式の
元素組成計測器と、流動中の石炭灰を抽出し且つ希釈す
るとともに、希釈された石炭灰を粒度分布計測器及び元
素組成計測器にそれぞれ導入し、粒度分布計測器に導入
された石炭灰が第１の固気比を有し、元素組成計測器に
導入された石炭灰が第２の固気比を有するように、第１
及び第２の固気比を調整する固気比調整器とを備えたこ
とを特徴とするものである。また、第１の固気比は、
０．４５〜０．８５であって、第２の固気比は、０．７
〜１．５であることがのぞましい。流動中の石炭灰が粒
度分布計測器および元素組成計測器にそれぞれ独立して
導入されるように、粒度分布計測器および元素組成計測
器が並列方式に配列することができる。また、粒度分布
計測器に導入された石炭灰が元素組成計測器に導入され
るように、粒度分布計測器および元素組成計測器が直列
方式に配列することができる。さらに、粒度分布計測器
および元素組成計測器の配列を、直列方式及び並列方式
のいずれかに切り換える切換手段を備えてもよい。ま
た、粒度分布計測器および元素組成計測器に導入される
石炭灰の湿分を除去する加熱器を備えてもよい。粒度分
布計測器は、計測された石炭灰の頻度から計算ブレーン
値を算出するとともに、この計算ブレーン値を補正して
測定ブレーン値を算出することができる。In order to achieve the above object, a coal ash analyzer according to the present invention is a coal ash analyzer for analyzing flowing coal ash, and measures a particle size distribution of the coal ash. A laser diffraction type particle size distribution measuring instrument, a laser-induced breakdown type element composition measuring instrument for measuring the elemental composition of coal ash, and extracting and diluting the flowing coal ash, and diluting the coal ash The coal ash introduced into the particle size distribution measuring instrument and the elemental composition measuring instrument respectively has a first solid-gas ratio, and the coal ash introduced into the elemental composition measuring instrument has a second solid-gas ratio. First to have a patience
And a second solid-gas ratio adjuster for adjusting the second solid-gas ratio. The first solid-gas ratio is
0.45-0.85 and the second solid-gas ratio is 0.7.
I would like to be ~ 1.5. The particle size distribution measuring device and the elemental composition measuring device can be arranged in parallel so that the flowing coal ash is independently introduced into the particle size distribution measuring device and the elemental composition measuring device, respectively. Further, the particle size distribution measuring instrument and the elemental composition measuring instrument can be arranged in series so that the coal ash introduced into the particle size distribution measuring instrument is introduced into the elemental composition measuring instrument. Further, a switching means for switching the arrangement of the particle size distribution measuring instrument and the elemental composition measuring instrument into either a series system or a parallel system may be provided. Moreover, you may provide the heater which removes the moisture of the coal ash introduced into a particle size distribution measuring instrument and an elemental composition measuring instrument. The particle size distribution measuring device can calculate the calculated Blaine value from the measured frequency of the coal ash, and correct the calculated Blaine value to calculate the measured Blaine value.
【０００５】以下に、この発明の実施の形態を図面に基
づいて説明する。
実施の形態１．この発明の実施の形態１に係る石炭灰分
析装置を図１に示す。石炭灰分析装置１は、石炭灰搬送
本管２から分岐した二次搬送管３に設けられている。石
炭灰搬送本管２は、ボイラから排出された石炭灰を貯蔵
するサイロと規格に適合した石炭灰を分別する分級機と
の間に設けられ、石炭灰を輸送する。また、石炭灰分析
装置１は、粒度分布計６及びＬＩＢＳセンサ７を備え、
それぞれの両端が配管により二次搬送管３に独立して接
続された並列方式になるように構成されている。さら
に、石炭灰分析装置１は、エアコンプレッサー８を備え
ている。エアコンプレッサー８は、二次搬送管３、粒度
分布計６及びＬＩＢＳセンサ７にそれぞれ設けられたエ
ジェクター９，１０，１１と接続される配管を備え、圧
縮空気１２を二次搬送管３、粒度分布計６及びＬＩＢＳ
センサ７に供給して、石炭灰搬送本管２を流動中の石炭
灰５を抽出し且つ希釈するとともに、希釈された石炭灰
を粒度分布計及びＬＩＢＳセンサ７にそれぞれ導入する
ように構成されている。Embodiments of the present invention will be described below with reference to the drawings. Embodiment 1. FIG. 1 shows a coal ash analyzer according to Embodiment 1 of the present invention. The coal ash analyzer 1 is provided in a secondary transfer pipe 3 branched from a coal ash transfer main pipe 2. The coal ash transport main pipe 2 is provided between a silo that stores the coal ash discharged from the boiler and a classifier that classifies the coal ash that conforms to the standard, and transports the coal ash. Further, the coal ash analyzer 1 includes a particle size distribution meter 6 and a LIBS sensor 7,
Both ends of each are connected in parallel to the secondary carrier pipe 3 by a parallel system. Furthermore, the coal ash analyzer 1 is equipped with an air compressor 8. The air compressor 8 includes pipes connected to the secondary transfer pipe 3, the particle size distribution meter 6 and the ejectors 9, 10, and 11 provided in the LIBS sensor 7, respectively, and the compressed air 12 is supplied to the secondary transfer pipe 3 and the particle size distribution. 6 in total and LIBS
The coal ash conveying main pipe 2 is supplied to the sensor 7 to extract and dilute the flowing coal ash 5, and the diluted coal ash is introduced to the particle size distribution meter and the LIBS sensor 7, respectively. There is.
【０００６】粒度分布計６は、レーザ回折を利用して、
粒径の大きさごとに区分された粒径ｄｘの石炭灰が占め
る体積の割合を頻度ｆ（ｘ）として計測するものであ
る。この頻度ｆ（ｘ）から石炭灰の粒径の分布状況を粒
度として算出するものである。ＬＩＢＳセンサ７は、石
炭灰にレーザー光を照射して石炭灰の成分をプラズマ化
させ、そのプラズマ光を分光してそれぞれの波長の発光
強度を計測して、石炭灰中の元素組成を算出するもので
あり、元素組成計測器を構成する。The particle size distribution meter 6 utilizes laser diffraction to
The ratio of the volume occupied by the coal ash having the particle size dx classified according to the particle size is measured as the frequency f (x). From this frequency f (x), the distribution state of the particle size of the coal ash is calculated as the particle size. The LIBS sensor 7 irradiates the coal ash with a laser beam to convert the components of the coal ash into plasma, disperses the plasma light, measures the emission intensity of each wavelength, and calculates the elemental composition in the coal ash. And constitutes an elemental composition measuring instrument.
【０００７】次に、この実施の形態に係る石炭灰分析装
置１の作用を説明する。石炭灰搬送本管２には、石炭灰
５が空気とともに図中の矢印４の方向に流動している。
石炭灰搬送本管２における石炭灰５の固気比は、２０程
度となっている。固気比とは、単位体積あたりの固体と
気体との占める割合であり、ここでは、固体である石炭
灰５と気体との占める割合をいう。固気比２０とは、石
炭灰５と気体との占める割合が２０：１となっており、
石炭灰搬送本管２中の石炭灰５の固気比は、粒度分布計
６およびＬＩＢＳセンサ７における石炭灰５の分析には
適さないものになっている。エジェクター９は、石炭灰
搬送本管２から石炭灰５を吸引して二次搬送管３に抽出
するとともに、二次搬送管３に圧縮空気１２を供給して
石炭灰１４を希釈し、矢印１３の方向に流動する二次搬
送管３内の石炭灰１４の固気比が１になるように流量調
整弁１７を介して調整する。また、エジェクター１０
は、粒度分布計６に導入される石炭灰１５の第１の固気
比が０．５になるように流量調整弁１８を介して粒度分
布計６に送る圧縮空気量を調整し石炭灰１５を希釈す
る。さらに、エジェクター１１はＬＩＢＳセンサ７に導
入される石炭灰１６の第２の固気比が、ＬＩＢＳセンサ
７の計測に適した１．０になるように流量調整弁１９を
介してＬＩＢＳセンサ７に送る圧縮空気量を調整してい
る。すなわち、粒度分布計に導入される石炭灰１５及び
元素組成計測器に導入される石炭灰１６のそれぞれの固
気比を調整する固気比調整器として機能する。Next, the operation of the coal ash analyzer 1 according to this embodiment will be described. In the coal ash transport main pipe 2, coal ash 5 is flowing together with air in the direction of arrow 4 in the figure.
The solid-gas ratio of the coal ash 5 in the coal ash transport main 2 is about 20. The solid-gas ratio is the ratio of solids and gas per unit volume, and here means the ratio of solid coal ash 5 and gas. The solid-gas ratio of 20 means that the ratio of the coal ash 5 and the gas is 20: 1,
The solid-gas ratio of the coal ash 5 in the coal ash transport main pipe 2 is not suitable for the analysis of the coal ash 5 by the particle size distribution meter 6 and the LIBS sensor 7. The ejector 9 sucks the coal ash 5 from the coal ash transport main pipe 2 and extracts the coal ash 5 into the secondary transport pipe 3, while supplying the compressed air 12 to the secondary transport pipe 3 to dilute the coal ash 14 and the arrow 13 Is adjusted via the flow rate adjusting valve 17 so that the solid-gas ratio of the coal ash 14 in the secondary transport pipe 3 flowing in the direction of becomes 1. Also, the ejector 10
Adjusts the amount of compressed air sent to the particle size distribution meter 6 via the flow rate adjusting valve 18 so that the first solid-gas ratio of the coal ash 15 introduced into the particle size distribution meter 6 becomes 0.5. Dilute. Further, the ejector 11 is connected to the LIBS sensor 7 via the flow rate adjusting valve 19 so that the second solid-gas ratio of the coal ash 16 introduced into the LIBS sensor 7 becomes 1.0, which is suitable for the measurement of the LIBS sensor 7. The amount of compressed air sent is adjusted. That is, it functions as a solid-gas ratio adjuster that adjusts the solid-gas ratios of the coal ash 15 introduced into the particle size distribution meter and the coal ash 16 introduced into the element composition measuring instrument.
【０００８】エジェクター１０により固気比０．５に希
釈された石炭灰１５が粒度分布計６に導入されると、粒
度分布計６は石炭灰１５の粒径の分布状況を頻度ｆ
（ｘ）として、常時算出する。すなわち、粒度分布計６
を通過する石炭灰１５の粒度分布をオンラインで計測す
る。また、エジェクター１１により固気比１に希釈され
た石炭灰１６がＬＩＢＳセンサ７に導入されると、ＬＩ
ＢＳセンサ７は石炭灰１６中の元素組成を常時算出す
る。すなわち、ＬＩＢＳセンサ７を通過する石炭灰１６
中の元素組成をオンラインで計測する。When the coal ash 15 diluted to a solid-gas ratio of 0.5 by the ejector 10 is introduced into the particle size distribution meter 6, the particle size distribution meter 6 indicates the distribution state of the particle size of the coal ash 15 at frequency f.
It is always calculated as (x). That is, the particle size distribution meter 6
The particle size distribution of the coal ash 15 passing through is measured online. When the coal ash 16 diluted to a solid-gas ratio of 1 by the ejector 11 is introduced into the LIBS sensor 7,
The BS sensor 7 constantly calculates the elemental composition in the coal ash 16. That is, the coal ash 16 passing through the LIBS sensor 7
The elemental composition of the inside is measured online.
【０００９】このように、粒度分布計６及びＬＩＢＳセ
ンサ７のそれぞれの計測に適するように、固気比が調整
されて石炭灰が粒度分布計６及びＬＩＢＳセンサ７に供
給されるので、石炭灰分析装置１は精度の高い石炭灰の
粒度分布及び元素組成を計測することができる。また、
粒度分布計６及びＬＩＢＳセンサ７を通過する石炭灰を
即座に計測するので、オンラインで、石炭灰の粒度分布
及び元素組成を同時に計測できる。また、粒度分布計６
及びＬＩＢＳセンサ７は並列配置され、二次搬送管３か
らそれぞれ独立して石炭灰を導入しているので、互いの
計測により生じる外乱の影響を受けにくい。さらに、粒
度分布計６及びＬＩＢＳセンサ７のいずれかに故障等が
生じても、粒度分布計６及びＬＩＢＳセンサ７について
それぞれ別個に稼働を停止して点検することができる。As described above, since the solid-gas ratio is adjusted and the coal ash is supplied to the particle size distribution meter 6 and the LIBS sensor 7 so as to be suitable for the measurements of the particle size distribution meter 6 and the LIBS sensor 7, respectively. The analyzer 1 can measure the particle size distribution and elemental composition of coal ash with high accuracy. Also,
Since the coal ash passing through the particle size distribution meter 6 and the LIBS sensor 7 is immediately measured, the particle size distribution and elemental composition of the coal ash can be simultaneously measured online. Also, the particle size distribution meter 6
Since the LIBS sensor 7 and the LIBS sensor 7 are arranged in parallel and independently introduce the coal ash from the secondary carrier pipe 3, they are less likely to be affected by the disturbance caused by the mutual measurement. Furthermore, even if a failure or the like occurs in either the particle size distribution meter 6 or the LIBS sensor 7, the particle size distribution meter 6 and the LIBS sensor 7 can be individually stopped and inspected.
【００１０】なお、粒度分布計６には、固気比０．５の
石炭灰を導入したが、この固気比に限定されるものでは
なく、固気比０．４５〜０．８５の範囲であれば、粒度
分布計６は精度の良い計測をすることができる。また、
ＬＩＢＳセンサ７は、固気比１の石炭灰を導入したが、
この固気比に限定されるものではなく、固気比０．７〜
１．５の範囲であれば、ＬＩＢＳセンサ７は精度の良い
計測をすることができる。なお、粒度分布計６及びＬＩ
ＢＳセンサ７に導入される二次搬送管３内の石炭灰１４
の固気比は、少なくとも、粒度分布計６及びＬＩＢＳセ
ンサ７に導入される固気比よりも大きな値になるよう
に、エジェクター９により調整される。例えば、粒度分
布計６に導入される石炭灰１５の固気比を０．８５、Ｌ
ＩＢＳセンサ７に導入される石炭灰１６の固気比を１．
５として計測を行う場合、二次搬送管３の石炭灰１４の
固気比は２程度であることが望ましい。Although coal ash having a solid-gas ratio of 0.5 was introduced into the particle size distribution meter 6, the particle-size distribution meter 6 is not limited to this solid-gas ratio and has a solid-gas ratio of 0.45 to 0.85. If so, the particle size distribution meter 6 can perform accurate measurement. Also,
The LIBS sensor 7 introduced coal ash having a solid-gas ratio of 1,
The solid-gas ratio is not limited to this, and the solid-gas ratio of 0.7 to
Within the range of 1.5, the LIBS sensor 7 can perform accurate measurement. The particle size distribution meter 6 and LI
Coal ash 14 in the secondary transfer pipe 3 introduced into the BS sensor 7
The solid-gas ratio of is adjusted by the ejector 9 to be at least a value larger than the solid-gas ratio introduced into the particle size distribution meter 6 and the LIBS sensor 7. For example, the solid-gas ratio of the coal ash 15 introduced into the particle size distribution meter 6 is 0.85, L
The solid-gas ratio of the coal ash 16 introduced into the IBS sensor 7 is 1.
When the measurement is performed as 5, the solid-gas ratio of the coal ash 14 in the secondary transfer pipe 3 is preferably about 2.
【００１１】実施の形態２．図２にこの発明の実施の形
態２に係る石炭灰分析装置を示す。この石炭灰分析装置
２０の構成は、図１に示した実施の形態１の装置１にお
いて、二次搬送管３に対する粒度分布計６及びＬＩＢＳ
センサ７の配置を変更したものである。以下、実施の形
態１において説明した図１の参照符号と同一の符号は、
同一又は同様な構成要素であるので、その詳細な説明は
省略する。石炭灰分析装置２０は、エアコンプレッサー
２１、粒度分布計６及びＬＩＢＳセンサ７を備え、これ
らが配管により接続されている。粒度分布計６の一端
は、エジェクター１０を介して二次搬送管３に接続さ
れ、粒度分布計６の他端は、ＬＩＢＳセンサ７の一端に
接続されている。また、ＬＩＢＳセンサ７の他端はエジ
ェクター１１を介して二次搬送管３に接続されている。
すなわち、粒度分布計６に導入された石炭灰２３が同一
の固気比の石炭灰２４としてＬＩＢＳセンサ７に導入さ
れるように、粒度分布計６及びＬＩＢＳセンサ７は直列
方式に配列されている。Embodiment 2. FIG. 2 shows a coal ash analyzer according to Embodiment 2 of the present invention. The structure of this coal ash analyzer 20 is the same as that of the device 1 of the first embodiment shown in FIG.
The arrangement of the sensor 7 is changed. Hereinafter, the same reference numerals as the reference numerals of FIG. 1 described in the first embodiment,
Since the constituent elements are the same or similar, detailed description thereof will be omitted. The coal ash analyzer 20 includes an air compressor 21, a particle size distribution meter 6 and a LIBS sensor 7, which are connected by a pipe. One end of the particle size distribution meter 6 is connected to the secondary transfer pipe 3 via the ejector 10, and the other end of the particle size distribution meter 6 is connected to one end of the LIBS sensor 7. The other end of the LIBS sensor 7 is connected to the secondary transfer pipe 3 via the ejector 11.
That is, the particle size distribution meter 6 and the LIBS sensor 7 are arranged in series so that the coal ash 23 introduced into the particle size distribution meter 6 is introduced into the LIBS sensor 7 as the coal ash 24 having the same solid-gas ratio. .
【００１２】ここで、エジェクター９は、石炭灰搬送本
管２から石炭灰５を吸引して二次搬送管３に抽出すると
ともに、二次搬送管３に圧縮空気１２を供給して石炭灰
２２を希釈し、矢印１３の方向に流動する二次搬送管３
内の石炭灰２２の固気比が２になるように調整する。ま
た、エジェクター１０は、粒度分布計６に導入される石
炭灰２３の第１の固気比が０．８になるように流量調整
弁１８を介して粒度分布計６に送る圧縮空気量を調整し
石炭灰を希釈する。次に、粒度分布計６で粒度分布が計
測された石炭灰２３は、固気比０．８のまま、石炭灰２
４として、ＬＩＢＳセンサ７に導入され、元素組成が計
測される。Here, the ejector 9 sucks the coal ash 5 from the coal ash transport main pipe 2 and extracts it into the secondary transport pipe 3, and supplies compressed air 12 to the secondary transport pipe 3 to supply the coal ash 22. Secondary carrier pipe 3 which dilutes and flows in the direction of arrow 13.
The solid-gas ratio of the inner coal ash 22 is adjusted to 2. Further, the ejector 10 adjusts the amount of compressed air sent to the particle size distribution meter 6 via the flow rate adjusting valve 18 so that the first solid-gas ratio of the coal ash 23 introduced into the particle size distribution meter 6 becomes 0.8. Then dilute the coal ash. Next, the coal ash 23 of which the particle size distribution was measured by the particle size distribution meter 6 had a solid-gas ratio of 0.8, and the coal ash 2
4, the element composition is introduced into the LIBS sensor 7 and the elemental composition is measured.
【００１３】このように、粒度分布計６及びＬＩＢＳセ
ンサ７が、直列方式で配列されているので、それぞれの
計測に適した固気比を用いて精度の良い計測ができると
共に、構造が簡単な石炭灰分析装置を提供できる。ま
た、粒度分布計６、ＬＩＢＳセンサ７の順で石炭灰が流
動するように構成されているので、破壊検査方法である
ＬＩＢＳセンサ７による計測の影響により石炭灰が破壊
されても、粒度分布計６による粒度分布の計測に支障を
きたすことがない。粒度分布計６およびＬＩＢＳセンサ
７の測定対象として石炭灰の同じサンプルを用いるの
で、粒度と元素組成との相関関係を精度良く知ることが
できる。As described above, since the particle size distribution meter 6 and the LIBS sensor 7 are arranged in series, accurate measurement can be performed using the solid-gas ratio suitable for each measurement, and the structure is simple. A coal ash analyzer can be provided. Further, since the coal ash flows in the order of the particle size distribution meter 6 and the LIBS sensor 7, even if the coal ash is destroyed due to the influence of the measurement by the LIBS sensor 7 which is the destructive inspection method, the particle size distribution meter It does not hinder the measurement of particle size distribution according to item 6. Since the same sample of coal ash is used as the measurement target of the particle size distribution meter 6 and the LIBS sensor 7, the correlation between the particle size and the elemental composition can be accurately known.
【００１４】実施の形態３．図３にこの発明の実施の形
態３に係る石炭灰分析装置を示す。この石炭灰分析装置
３０の構成は、図１に示した実施の形態１及び２におい
てそれぞれ示した、粒度分布計６及びＬＩＢＳセンサ７
の配置を並列方式、直列方式のいずれかに切り換え可能
にしたものである。石炭灰分析装置３０は、エアコンプ
レッサー３１、粒度分布計６、ＬＩＢＳセンサ７と、切
換手段としての第１開閉弁３５、第２開閉弁３６及び第
３開閉弁３７とを備え、これらが配管により接続されて
いる。粒度分布計６の一端はエジェクター１０を介して
二次搬送管３に接続され、粒度分布計６の他端は第１開
閉弁３５を介してＬＩＢＳセンサ７の一端に接続されて
いる。また、ＬＩＢＳセンサ７の他端はエジェクター１
１を介して二次搬送管３に接続されている。一方、粒度
分布計６と第１開閉弁３５との間から、配管が分岐し、
第２開閉弁３６を介して二次搬送管３に接続位置３８で
接続されている。ＬＩＢＳセンサ７と第１開閉弁３５と
の間からも、配管が分岐し、第３開閉弁３７を介して二
次搬送管３に接続位置３９で接続されている。ここで、
接続位置３８と接続位置３９との位置関係については、
接続位置３９が接続位置３８に対して、二次搬送管３内
を矢印１３の方向に流動する石炭灰３２の上流側にあ
る。エジェクター９は、石炭灰搬送本管２から石炭灰５
を吸引して二次搬送管３に抽出するとともに、二次搬送
管３に圧縮空気１２を供給して矢印１３の方向に流動す
る二次搬送管３内の石炭灰３２を希釈する。Embodiment 3. FIG. 3 shows a coal ash analyzer according to Embodiment 3 of the present invention. The structure of the coal ash analyzer 30 is the same as that of the first and second embodiments shown in FIG.
The arrangement can be switched between a parallel system and a serial system. The coal ash analyzer 30 includes an air compressor 31, a particle size distribution meter 6, a LIBS sensor 7, and a first opening / closing valve 35, a second opening / closing valve 36, and a third opening / closing valve 37 as switching means, which are connected by piping. It is connected. One end of the particle size distribution meter 6 is connected to the secondary carrier pipe 3 via the ejector 10, and the other end of the particle size distribution meter 6 is connected to one end of the LIBS sensor 7 via the first opening / closing valve 35. Further, the other end of the LIBS sensor 7 is connected to the ejector 1
It is connected to the secondary carrier pipe 3 via 1. On the other hand, the pipe branches from between the particle size distribution meter 6 and the first on-off valve 35,
It is connected to the secondary carrier pipe 3 at a connecting position 38 via a second opening / closing valve 36. A pipe branches from between the LIBS sensor 7 and the first opening / closing valve 35, and is connected to the secondary transfer pipe 3 at the connection position 39 via the third opening / closing valve 37. here,
Regarding the positional relationship between the connection position 38 and the connection position 39,
The connection position 39 is on the upstream side of the coal ash 32 flowing in the direction of the arrow 13 in the secondary transfer pipe 3 with respect to the connection position 38. The ejector 9 is configured to transfer the coal ash transport main 2 to the coal ash 5
Is sucked and extracted into the secondary transfer pipe 3, and compressed air 12 is supplied to the secondary transfer pipe 3 to dilute the coal ash 32 in the secondary transfer pipe 3 flowing in the direction of arrow 13.
【００１５】粒度分布計６とＬＩＢＳセンサ７とが、実
施の形態１と同様に、並列方式に配列された状態にする
には、第１開閉弁３５を閉じ、第２開閉弁３６及び第３
開閉弁３７を開く。流量調整弁１７は、二次搬送管３内
の石炭灰３２の固気比が１、流量調整弁１８は、粒度分
布計６に導入される石炭灰３３の第１の固気比が０．
５、流量調整弁１９は、ＬＩＢＳセンサ７に導入される
石炭灰３４の第２の固気比が１．０になるように、圧縮
空気量を調整する。In order to bring the particle size distribution meter 6 and the LIBS sensor 7 into the state of being arranged in parallel as in the first embodiment, the first opening / closing valve 35 is closed, and the second opening / closing valve 36 and the third opening / closing valve 36.
The on-off valve 37 is opened. The flow rate adjusting valve 17 has a solid-gas ratio of 1 of the coal ash 32 in the secondary carrier pipe 3, and the flow rate adjusting valve 18 has a first solid-gas ratio of the coal ash 33 introduced into the particle size distribution meter 6 of 0.
5. The flow rate adjusting valve 19 adjusts the amount of compressed air so that the second solid-gas ratio of the coal ash 34 introduced into the LIBS sensor 7 becomes 1.0.
【００１６】一方、粒度分布計６とＬＩＢＳセンサ７と
が、実施の形態２と同様に、直列方式に配列された状態
にするには、第１開閉弁３５を開き、第２開閉弁３６及
び第３開閉弁３７を閉じる。流量調整弁１７は、二次搬
送管３内の石炭灰３２の固気比が２、流量調整弁１８及
び流量調整弁１９は、粒度分布計６に導入される石炭灰
３３の第１の固気比と、粒度分布計６に導入された石炭
灰３３が、そのままＬＩＢＳセンサ７に導入される石炭
灰３４の第２の固気比とが共に０．８になるように圧縮
空気量を調整する。On the other hand, the first on-off valve 35 is opened and the second on-off valve 36 and The third opening / closing valve 37 is closed. The flow rate adjusting valve 17 has a solid-gas ratio of the coal ash 32 in the secondary transfer pipe 3 of 2, and the flow rate adjusting valve 18 and the flow rate adjusting valve 19 have the first solid state of the coal ash 33 introduced into the particle size distribution meter 6. The compressed air amount is adjusted so that both the air ratio and the second solid-gas ratio of the coal ash 33 introduced into the LIBS sensor 7 of the coal ash 33 introduced into the particle size distribution meter 6 become 0.8 as they are. To do.
【００１７】このように、測定目的に応じて、粒度分布
計６とＬＩＢＳセンサ７との配列を切換手段の操作によ
り並列方式、直列方式のいずれかに容易に変更できる。
すなわち、より精度の高い測定や外乱をなるべく排除し
た測定が必要な場合は、並列方式に切り換え、石炭灰の
同じ測定対象を使って粒径分布と元素組成との相関関係
を知りたい場合は、直列方式に切り換えることができ
る。As described above, the arrangement of the particle size distribution meter 6 and the LIBS sensor 7 can be easily changed to either the parallel system or the series system by operating the switching means according to the purpose of measurement.
In other words, if you need more accurate measurements or measurements that eliminate disturbance as much as possible, switch to the parallel method, and if you want to know the correlation between the particle size distribution and elemental composition using the same measurement target of coal ash, It is possible to switch to the serial system.
【００１８】実施の形態４．図４にこの発明の実施の形
態４に係る石炭灰分析装置を示す。この石炭灰分析装置
４０の構成は、図１に示した実施の形態１の装置１にお
いて、ヒータ４１を追加したものである。石炭灰分析装
置４０は、二次搬送管３に設けられたエジェクター９
と、石炭灰搬送本管２の石炭灰５が二次搬送管３に導入
される石炭灰導入部４２との間に、加熱器としてのヒー
タ４１を備えている。このヒータ４１は、エジェクター
９を介してエアコンプレッサー８から二次搬送管３に供
給される圧縮空気１２を加熱する。これにより、二次搬
送管３に導入された石炭灰１３を予め乾燥させて、粒度
分布計６及びＬＩＢＳセンサ７に、湿分の除去された石
炭灰１５及び１６をそれぞれ導入する。石炭灰分析装置
に入る石炭灰には、湿分を多く含む場合がある。このよ
うに水分含有量が多い石炭灰は、粒子の分散が悪く、粒
度分布計６における粒度分布結果やＬＩＢＳセンサ７の
元素組成分析結果において計測誤差が大きくなる。この
ため、粒度分布計６及びＬＩＢＳセンサ７に、湿分の除
去された石炭灰を導入することにより、計測誤差の少な
い精度の高い計測が可能となる。Embodiment 4. FIG. 4 shows a coal ash analyzer according to Embodiment 4 of the present invention. The structure of this coal ash analysis device 40 is the same as the device 1 of the first embodiment shown in FIG. 1 except that a heater 41 is added. The coal ash analyzer 40 includes an ejector 9 provided on the secondary carrier pipe 3.
And a coal ash introduction section 42 in which the coal ash 5 of the coal ash transport main pipe 2 is introduced into the secondary transport pipe 3 is provided with a heater 41 as a heater. The heater 41 heats the compressed air 12 supplied from the air compressor 8 to the secondary transfer pipe 3 via the ejector 9. As a result, the coal ash 13 introduced into the secondary carrier pipe 3 is dried in advance, and the coal ash 15 and 16 from which moisture has been removed are introduced into the particle size distribution meter 6 and the LIBS sensor 7, respectively. The coal ash entering the coal ash analyzer may contain a large amount of moisture. As described above, the coal ash having a large water content has a poor particle dispersion, and a measurement error becomes large in the particle size distribution result of the particle size distribution meter 6 and the elemental composition analysis result of the LIBS sensor 7. Therefore, by introducing the coal ash from which moisture has been removed into the particle size distribution meter 6 and the LIBS sensor 7, it is possible to perform highly accurate measurement with a small measurement error.
【００１９】実施の形態５．実施の形態１の石炭灰分析
装置１の粒度分布計６では、粒度分布を頻度ｆ（ｘ）と
して算出したが、粒度分布計では、この頻度ｆ（ｘ）を
基に別の測定単位に変換して粒度分布を算出してもよ
い。石炭灰の粒度分布を表す単位として、ＪＩＳ Ａ
６２０１に規定される粉末度により表されることが多
い。この粉末度を表示する方法として、４５ｕｍふるい
残分として表示する方法と、ＪＩＳ Ｒ ５２０１に規
定されている比表面積試験により石炭灰のブレーン値と
して表示する方法がある。ここで、ブレーン値とは、石
炭灰の比表面積を表す値である。この実施の形態で用い
られる粒度分布計は、後述する計算方法により石炭灰の
ブレーン値を算出している。しかしながら、ＪＩＳ Ｒ
５２０１に規定されている比表面積試験により測定し
たブレーン値と、粒度分布計が理論的に計算したブレー
ン値との間には差異が生じることが分かった。そこで、
本粒度分布計は、まず、計測された石炭灰の頻度ｆ
（ｘ）から計算ブレーン値を算出する。さらに、比表面
積試験により測定したブレーン値である測定ブレーン値
と粒度分布計が理論的に計算したブレーン値である計算
ブレーン値との相関関係に基づいた補正式により、計算
ブレーン値を補正して測定ブレーン値に算出する。Embodiment 5. In the particle size distribution meter 6 of the coal ash analyzer 1 of the first embodiment, the particle size distribution was calculated as the frequency f (x), but in the particle size distribution meter, the frequency f (x) is converted into another measurement unit. Then, the particle size distribution may be calculated. As a unit for expressing the particle size distribution of coal ash, JIS A
It is often represented by the fineness specified in 6201. As a method of displaying this fineness, there are a method of displaying as a 45 um sieve residue and a method of displaying as a Blaine value of coal ash by a specific surface area test prescribed in JIS R 5201. Here, the Blaine value is a value representing the specific surface area of coal ash. The particle size distribution meter used in this embodiment calculates the Blaine value of coal ash by the calculation method described later. However, JIS R
It was found that there was a difference between the Blaine value measured by the specific surface area test specified in 5201 and the Blaine value theoretically calculated by the particle size distribution analyzer. Therefore,
In this particle size distribution meter, first, the frequency f of the measured coal ash f
The calculated Blaine value is calculated from (x). Further, the calculated Blaine value is corrected by a correction formula based on the correlation between the measured Blaine value, which is the Blaine value measured by the specific surface area test, and the calculated Blaine value, which is the Blaine value theoretically calculated by the particle size distribution meter. Calculate the measured Blaine value.
【００２０】以下に、この実施の形態で用いられる粒度
分布計が、ＪＩＳ Ａ ６２０１に規定される粉末度を
ブレーン値として表示する方法を説明する。まず、粒度
分布計６は、レーザ回折を利用して、石炭灰の粒径の大
きさごとに区分し、その区分に対応し粒径ｄｘの石炭灰
が占める体積の割合を頻度ｆ（ｘ）を算出する。
粒径ｄｘの粒子の持つ表面積Ｓｘは、Ｓｘ＝πｄｘ2、
粒径ｄｘの粒子の持つ体積Ｖｘは、Ｖｘ＝π／６ｄ
ｘ3、
粒径ｄｘの粒子の個数Ｎｘは、Ｎｘ＝ｆ（ｘ）／Ｖｘ＝
６ｆ（ｘ）／πｄｘ3である。A method of displaying the fineness of powder defined by JIS A 6201 as a Blaine value by the particle size distribution meter used in this embodiment will be described below. First, the particle size distribution meter 6 uses laser diffraction to classify the coal ash according to the size of the particle size, and according to the classification, the volume ratio of the coal ash having the particle size dx is frequency f (x). To calculate. The surface area Sx of the particles having the particle diameter dx is Sx = πdx 2 , and the volume Vx of the particles having the particle diameter dx is Vx = π / 6d.
x 3 , the number Nx of particles having a particle diameter dx is Nx = f (x) / Vx =
6f (x) / πdx 3 .
【００２１】粒径ｄｘにおける全粒子の表面積ΣＳｘ
は、ΣＳｘ＝Ｓｘ・Ｎｘ＝６ｆ（ｘ）／ｄｘとなり、比
表面積ＳＣは、全粒子の表面積ΣＳｘをその重量で割っ
た値であることから、ρを計測するサンプルの真密度と
すると、ＳＣ＝Σ（６ｆ（ｘ）／ｄｘ）／（ρΣｆ
（ｘ））として、表される。Σｆ（ｘ）は頻度で表すと
１００であり、ρはサンプルの真密度のため、ρΣｆ
（ｘ）は、サンプルの重量となり定数となる。Surface area of all particles at particle size dx ΣSx
Is ΣSx = Sx · Nx = 6f (x) / dx, and the specific surface area SC is a value obtained by dividing the surface area ΣSx of all particles by its weight. Therefore, when ρ is taken as the true density of the sample, SC = Σ (6f (x) / dx) / (ρΣf
(X)). Σf (x) is 100 in terms of frequency, and ρ is the true density of the sample, so ρΣf
(X) is the weight of the sample and is a constant.
【００２２】したがって、粒度分布計が理論的に算出し
た計算ブレーン値ＢＴは、ＢＴ＝Ｋ・Σ（ｆ（ｘ）／ｄ
ｘ）として計算できる。すなわち、粒度分布計で測定し
た各粒径における頻度ｆ（ｘ）を、その粒径ｄｘで割っ
た値を総計した値Σ（ｆ（ｘ）／ｄｘ）に補正係数Ｋを
乗じた値が計算ブレーン値ＢＴとなる。Therefore, the calculated Blaine value BT theoretically calculated by the particle size distribution meter is BT = KΣ (f (x) / d
x) can be calculated. That is, a value obtained by multiplying the correction coefficient K by the sum Σ (f (x) / dx) of the values obtained by dividing the frequency f (x) at each particle size measured by a particle size distribution meter by the particle size dx is calculated. The brain value BT is obtained.
【００２３】一方、ＪＩＳ Ｒ ５２０１に規定されて
いる比表面積試験によりブレーン値を測定してみると、
この測定ブレーン値ＢＭと計算ブレーン値ＢＴとの間に
は、図５に示されるような関係がある。図５は、計算ブ
レーン値ＢＴをｔとし、測定ブレーン値ＢＭをｙとし
て、両者の関係を近似する補正式ｙ＝ｆ（ｔ）で表した
ものである。この補正式ｙ＝ｆ（ｔ）は、
ｙ＝ｆ（ｔ）＝ａ／ｔ3＋ｂ／ｔ2＋ｃ／ｔ＋ｄ
の式で表される。ここで、ａ，ｂ，ｃ．ｄは定数であ
る。On the other hand, when the Blaine value is measured by the specific surface area test specified in JIS R 5201,
There is a relationship as shown in FIG. 5 between the measured Blaine value BM and the calculated Blaine value BT. FIG. 5 shows a correction equation y = f (t) that approximates the relationship between the calculated Blaine value BT and the measured Blaine value BM. The correction formula y = f (t) is expressed by the following formula: y = f (t) = a / t 3 + b / t 2 + c / t + d. Here, a, b, c. d is a constant.
【００２４】以上に示した計算を本粒度分布計が行うこ
とにより、本粒度分布計で測定した各粒径における頻度
ｆ（ｘ）を用いて、ＪＩＳ Ｒ ５２０１に規定されて
いる比表面積試験によりブレーン値と同等の値を導くこ
とができる。したがって、本粒度分布計は、ＪＩＳで規
定した比表面積試験に行うことなく、ＪＩＳ Ａ ６２
０１に規定される粉末度をブレーン値として算出するこ
とができる。By performing the above calculation by the particle size distribution meter, the frequency f (x) at each particle size measured by the particle size distribution meter is used to carry out a specific surface area test prescribed in JIS R 5201. A value equivalent to the Blaine value can be derived. Therefore, this particle size distribution analyzer does not require the JIS A 62
The fineness defined by 01 can be calculated as a Blaine value.
【００２５】なお、実施の形態２および３に示した石炭
灰分析装置２０および３０に、実施の形態４で示したヒ
ータ４１や実施の形態５で示した粒度分布計を同様に適
用することができる。The heater 41 shown in the fourth embodiment and the particle size distribution meter shown in the fifth embodiment can be similarly applied to the coal ash analyzers 20 and 30 shown in the second and third embodiments. it can.
【００２６】[0026]
【発明の効果】請求項１に記載の発明によれば、レーザ
回折方式の粒度分布計測器とレーザ誘起ブレークダウン
方式の元素組成計測器とに導入される石炭灰の固気比が
それぞれ適切に調整されるので、石炭灰の粒度及び元素
組成を同時に分析できる。請求項２に記載の発明によれ
ば、レーザ回折方式の粒度分布計測器及びレーザ誘起ブ
レークダウン方式の元素組成計測器にとって、適切な固
気比に調整することができる。請求項３に記載の発明に
よれば、粒度分布計測器および元素組成計測器が並列方
式に配列され、流動中の石炭灰がそれぞれ独立して導入
されるので、互いの計測により生じる外乱の影響を受け
にくくすることができる。請求項４に記載の発明によれ
ば、粒度分布計測器および元素組成計測器が直列方式に
配列され、粒度分布計測器に導入された石炭灰が元素組
成計測器に導入されるので、構造が簡単な石炭灰分析装
置を提供できる。粒度分布計測器および元素組成計測器
の測定対象として石炭灰の同じサンプルを用いるので、
粒度と元素組成との相関関係を精度よく知ることができ
る。請求項５に記載の発明によれば、切換手段により、
測定目的に応じて、粒度分布計測器および元素組成計測
器の配列を容易に変更できる。請求項６に記載の発明に
よれば、加熱器により、湿分の除去された石炭灰を粒度
分布計測器および元素組成計測器に導入することがで
き、湿分の影響を受けない精度の高い計測を行うことが
できる。請求項７に記載の発明によれば、粒度分布計
は、計測された石炭灰の頻度から計算ブレーン値を算出
し、さらに、計算ブレーン値を補正して測定ブレーン値
を算出するので、精度の良いブレーン値として算出する
ことができる。According to the invention described in claim 1, the solid-gas ratios of the coal ash introduced into the laser diffraction type particle size distribution measuring instrument and the laser induced breakdown type element composition measuring instrument are properly adjusted. As it is adjusted, the particle size and elemental composition of coal ash can be analyzed simultaneously. According to the second aspect of the present invention, it is possible to adjust the solid-gas ratio to be appropriate for the laser diffraction type particle size distribution measuring instrument and the laser induced breakdown type element composition measuring instrument. According to the invention described in claim 3, since the particle size distribution measuring instrument and the elemental composition measuring instrument are arranged in parallel and the flowing coal ash is introduced independently of each other, the influence of disturbance caused by mutual measurement. It is possible to make it hard to receive. According to the invention described in claim 4, since the particle size distribution measuring instrument and the elemental composition measuring instrument are arranged in series and the coal ash introduced into the particle size distribution measuring instrument is introduced into the elemental composition measuring instrument, the structure is It is possible to provide a simple coal ash analyzer. Since the same sample of coal ash is used as the measurement target of the particle size distribution measuring instrument and the elemental composition measuring instrument,
It is possible to accurately know the correlation between the particle size and the elemental composition. According to the invention of claim 5, by the switching means,
The arrangement of the particle size distribution measuring instrument and the elemental composition measuring instrument can be easily changed according to the purpose of measurement. According to the invention as set forth in claim 6, the coal ash from which moisture has been removed can be introduced into the particle size distribution measuring instrument and the elemental composition measuring instrument by means of the heater, and there is a high degree of accuracy without being affected by moisture. Measurement can be performed. According to the invention of claim 7, the particle size distribution meter calculates the calculated Blaine value from the measured frequency of the coal ash, and further corrects the calculated Blaine value to calculate the measured Blaine value. It can be calculated as a good Blaine value.
【図１】 実施の形態１に係る石炭灰分析装置の構成を
示す系統図である。FIG. 1 is a system diagram showing a configuration of a coal ash analyzer according to a first embodiment.
【図２】 実施の形態２に係る石炭灰分析装置の構成を
示す系統図である。FIG. 2 is a system diagram showing a configuration of a coal ash analyzer according to a second embodiment.
【図３】 実施の形態３に係る石炭灰分析装置の構成を
示す系統図である。FIG. 3 is a system diagram showing a configuration of a coal ash analyzer according to a third embodiment.
【図４】 実施の形態４に係る石炭灰分析装置の構成を
示す系統図である。FIG. 4 is a system diagram showing a configuration of a coal ash analyzer according to a fourth embodiment.
【図５】 実施の形態５に係る石炭灰分析装置に用いら
れる粒度分布計の計算ブレーン値と測定ブレーン値との
関係を示すグラフである。FIG. 5 is a graph showing the relationship between the calculated Blaine value and the measured Blaine value of the particle size distribution analyzer used in the coal ash analyzer according to the fifth embodiment.
１，２０，３０，４０…石炭灰分析装置、６…粒度分布
計、７…ＬＩＢＳセンサ、８，２１，３１…エアコンプ
レッサー、９，１０，１１…エジェクター、１７，１
８，１９…流量調整弁、３５…第１開閉弁、３６…第２
開閉弁、３７…第３開閉弁、４１…ヒータ、ＢＴ…計算
ブレーン値、ＢＭ…測定ブレーン値。1, 20, 30, 40 ... Coal ash analyzer, 6 ... Particle size distribution meter, 7 ... LIBS sensor, 8, 21, 31 ... Air compressor, 9, 10, 11 ... Ejector, 17, 1
8, 19 ... Flow rate adjusting valve, 35 ... First opening / closing valve, 36 ... Second
Open / close valve, 37 ... Third open / close valve, 41 ... Heater, BT ... Calculated brain value, BM ... Measured brain value.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 篠田 豊 兵庫県神戸市兵庫区和田崎町一丁目１番１ 号 三菱重工業株式会社神戸造船所内 (72)発明者 厚見 真喜男 兵庫県高砂市荒井町新浜二丁目８番19号 高菱エンジニアリング株式会社内 Ｆターム(参考） 2G043 AA01 BA01 BA07 CA06 DA05 DA08 EA10 EA15 GA07 GB01 GB07 GB09 JA01 KA09 MA16 NA01 4D004 AA36 BA02 CA12 CA42 CB32 CB50 DA01 DA20 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Yutaka Shinoda 1-1 1-1 Wadasaki-cho, Hyogo-ku, Kobe-shi, Hyogo No. Mitsubishi Heavy Industries, Ltd.Kobe Shipyard (72) Inventor Makio Atsumi 2-8-19 Niihama, Arai-cho, Takasago-shi, Hyogo Takaryo Engineering Co., Ltd. F-term (reference) 2G043 AA01 BA01 BA07 CA06 DA05 DA08 EA10 EA15 GA07 GB01 GB07 GB09 JA01 KA09 MA16 NA01 4D004 AA36 BA02 CA12 CA42 CB32 CB50 DA01 DA20
Claims (7)
置であって、 石炭灰の粒度分布を計測するレーザ回折方式の粒度分布
計測器と、 石炭灰の元素組成を計測するレーザ誘起ブレークダウン
方式の元素組成計測器と、 流動中の石炭灰を抽出し且つ希釈するとともに、希釈さ
れた石炭灰を粒度分布計測器及び元素組成計測器にそれ
ぞれ導入し、 粒度分布計測器に導入された石炭灰が第１の固気比を有
し、元素組成計測器に導入された石炭灰が第２の固気比
を有するように、第１及び第２の固気比を調整する固気
比調整器とを備えたことを特徴とする石炭灰分析装置。1. A coal ash analyzer for analyzing flowing coal ash, comprising a laser diffraction type particle size distribution measuring device for measuring the particle size distribution of the coal ash, and a laser induced break for measuring the elemental composition of the coal ash. A down-type elemental composition measuring instrument was used to extract and dilute the flowing coal ash, and the diluted coal ash was introduced into the particle size distribution measuring instrument and elemental composition measuring instrument, respectively, and then introduced into the particle size distribution measuring instrument. A solid-gas ratio for adjusting the first and second solid-gas ratios such that the coal ash has a first solid-gas ratio and the coal ash introduced into the elemental composition measuring instrument has a second solid-gas ratio. An apparatus for analyzing coal ash, comprising: a regulator.
あって、第２の固気比は、０．７〜１．５である請求項
１に記載の石炭灰分析装置。2. The coal ash analysis according to claim 1, wherein the first solid-gas ratio is 0.45 to 0.85 and the second solid-gas ratio is 0.7 to 1.5. apparatus.
元素組成計測器にそれぞれ独立して導入されるように、
粒度分布計測器および元素組成計測器が並列方式に配列
された請求項１または２に記載の石炭灰分析装置。3. The flowing coal ash is independently introduced into the particle size distribution measuring instrument and the elemental composition measuring instrument,
The coal ash analyzer according to claim 1 or 2, wherein the particle size distribution measuring instrument and the elemental composition measuring instrument are arranged in parallel.
素組成計測器に導入されるように、粒度分布計測器およ
び元素組成計測器が直列方式に配列された請求項１また
は２に記載の石炭灰分析装置。4. The particle size distribution measuring instrument and the elemental composition measuring instrument are arranged in series so that the coal ash introduced into the particle size distribution measuring instrument is introduced into the elemental composition measuring instrument. Coal ash analyzer.
配列を、直列方式及び並列方式のいずれかに切り換える
切換手段を備えた請求項１または２に記載の石炭灰分析
装置。5. The coal ash analyzer according to claim 1, further comprising switching means for switching the arrangement of the particle size distribution measuring device and the elemental composition measuring device to either a series system or a parallel system.
導入される石炭灰の湿分を除去する加熱器を備えた請求
項１〜５のいずれか一項に記載の石炭灰分析装置。6. The coal ash analyzer according to claim 1, further comprising a heater for removing moisture of the coal ash introduced into the particle size distribution measuring instrument and the elemental composition measuring instrument.
頻度から計算ブレーン値を算出するとともに、この計算
ブレーン値を補正して測定ブレーン値を算出する請求項
１〜６のいずれか一項に記載の石炭灰分析装置。7. The particle size distribution measuring instrument calculates a calculated Blaine value from the measured frequency of coal ash, and corrects the calculated Blaine value to calculate a measured Blaine value. A coal ash analyzer according to item.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001377078A JP2003177095A (en) | 2001-12-11 | 2001-12-11 | Coal ash content-analyzing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001377078A JP2003177095A (en) | 2001-12-11 | 2001-12-11 | Coal ash content-analyzing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003177095A true JP2003177095A (en) | 2003-06-27 |
Family
ID=19185130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001377078A Withdrawn JP2003177095A (en) | 2001-12-11 | 2001-12-11 | Coal ash content-analyzing apparatus |
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| Country | Link |
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| JP (1) | JP2003177095A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011013197A (en) * | 2009-07-06 | 2011-01-20 | Central Res Inst Of Electric Power Ind | Method and system for evaluating coal ash property |
| CN102053083A (en) * | 2010-11-09 | 2011-05-11 | 清华大学 | Method for on-line measurement of coal quality characteristics based on partial least squares method |
| CN104713855A (en) * | 2015-03-12 | 2015-06-17 | 华中科技大学 | Method of utilizing laser probe to detect iron ore pH value |
| JP2016199464A (en) * | 2016-06-15 | 2016-12-01 | 一般財団法人電力中央研究所 | Method of evaluating existent ash |
| CN112255149A (en) * | 2020-10-10 | 2021-01-22 | 中国科学院近代物理研究所 | Method and system for detecting particle size of loose particle accumulation and storage medium |
-
2001
- 2001-12-11 JP JP2001377078A patent/JP2003177095A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011013197A (en) * | 2009-07-06 | 2011-01-20 | Central Res Inst Of Electric Power Ind | Method and system for evaluating coal ash property |
| CN102053083A (en) * | 2010-11-09 | 2011-05-11 | 清华大学 | Method for on-line measurement of coal quality characteristics based on partial least squares method |
| CN104713855A (en) * | 2015-03-12 | 2015-06-17 | 华中科技大学 | Method of utilizing laser probe to detect iron ore pH value |
| JP2016199464A (en) * | 2016-06-15 | 2016-12-01 | 一般財団法人電力中央研究所 | Method of evaluating existent ash |
| CN112255149A (en) * | 2020-10-10 | 2021-01-22 | 中国科学院近代物理研究所 | Method and system for detecting particle size of loose particle accumulation and storage medium |
| CN112255149B (en) * | 2020-10-10 | 2022-07-05 | 中国科学院近代物理研究所 | Method and system for detecting particle size of loose particle accumulation and storage medium |
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