JPH0792155A - Continuous analyzer for unburned ash - Google Patents
Continuous analyzer for unburned ashInfo
- Publication number
- JPH0792155A JPH0792155A JP23472993A JP23472993A JPH0792155A JP H0792155 A JPH0792155 A JP H0792155A JP 23472993 A JP23472993 A JP 23472993A JP 23472993 A JP23472993 A JP 23472993A JP H0792155 A JPH0792155 A JP H0792155A
- Authority
- JP
- Japan
- Prior art keywords
- dust
- oxygen
- analyzer
- exhaust gas
- amount
- 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
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000000428 dust Substances 0.000 claims abstract description 32
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 32
- 239000001301 oxygen Substances 0.000 claims abstract description 32
- 239000007789 gas Substances 0.000 claims abstract description 23
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000002485 combustion reaction Methods 0.000 claims abstract description 17
- 238000005070 sampling Methods 0.000 claims abstract description 12
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 10
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 abstract description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 5
- 239000003245 coal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
(57)【要約】
【目的】 排ガス中の未燃分を連続して分析する。
【構成】 未燃のダストを含んだ排ガス２が流れるダク
ト１と、ダクト１の中を流れる排ガス２の一部を吸引す
るサンプリング管３と、サンプリング管３で吸引した排
ガス２からダストを分離するサイクロン４と、サイクロ
ン４で分離されたダストを一定速度で切出すフィーダー
７と、フィーダー７から切出されたダストの量を連続的
に計測するインパクト流量計８と、インパクト流量計８
を通過したダストに酸素１０を加える酸素供給管１１
と、酸素供給量を計測する流量計１５と、酸素１０が加
えられたダストを燃焼する加熱装置１３と、加熱装置１
３による燃焼で生じたガスの成分濃度をそれぞれ計測す
る酸素分析計１６、一酸化炭素分析計１７、炭酸ガス分
析計１８とを備え、酸素濃度、一酸化炭素濃度、炭酸ガ
ス濃度から、灰の中の未燃分量を計算する。
(57) [Summary] [Purpose] Continuous analysis of unburned matter in exhaust gas. [Structure] A duct 1 in which an exhaust gas 2 containing unburned dust flows, a sampling pipe 3 for sucking a part of the exhaust gas 2 flowing in the duct 1, and dust separated from the exhaust gas 2 sucked in the sampling pipe 3. Cyclone 4, feeder 7 that cuts out dust separated by cyclone 4 at a constant speed, impact flowmeter 8 that continuously measures the amount of dust cut out from feeder 7, impact flowmeter 8
Oxygen supply pipe 11 for adding oxygen 10 to the dust passing through
A flow meter 15 for measuring the amount of oxygen supplied, a heating device 13 for burning dust to which oxygen 10 is added, and a heating device 1.
An oxygen analyzer 16, a carbon monoxide analyzer 17, and a carbon dioxide gas analyzer 18, which respectively measure the concentrations of the components of the gas produced by the combustion according to No. 3, are used to determine the ash content from the oxygen concentration, the carbon monoxide concentration, and the carbon dioxide concentration. Calculate the amount of unburned matter inside.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、灰の中の燃え残りの成
分を連続して分析する灰中未燃分の連続分析装置に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for continuously analyzing unburned components in ash for continuously analyzing unburned components in ash.
【０００２】[0002]
【従来の技術】ボイラの燃焼状態を最良の完全燃焼状態
に保持するため、燃料と空気との混合比を常に最良の割
合に調節して熱効率を向上させることが行なわれてい
る。このためには、灰中の微粉炭等の未燃分の量を分析
することが重要である。2. Description of the Related Art In order to maintain the combustion state of a boiler in the best state of complete combustion, it has been practiced to always adjust the mixing ratio of fuel and air to the best ratio to improve thermal efficiency. For this purpose, it is important to analyze the amount of unburned matter such as pulverized coal in ash.
【０００３】灰中の微粉炭等の未燃分の量を計測するた
めに従来は、ボイラの排ガス中のダストを一定時間回収
してそのダストを計量した後燃焼し、燃焼した後で再び
計量して重量の差を求め燃えた分だけ軽くなることによ
り、未燃分の量を計測していた。Conventionally, in order to measure the amount of unburned matter such as pulverized coal in ash, dust in the exhaust gas of a boiler is collected for a certain period of time, the dust is weighed and then burned, and after burning, weighed again. Then, the difference in weight was calculated, and the amount of unburned matter was measured by reducing the amount of burning.
【０００４】[0004]
【発明が解決しようとする課題】従来行なわれていた未
燃分の計測方法では、燃焼中の状態を連続して計測する
ことができず、回収したダストの計量と燃焼した後のダ
ストの計量とを、数多く繰り返さなければならない欠点
があった。With the conventional method of measuring unburned content, it is not possible to continuously measure the state of combustion, and it is necessary to measure the collected dust and the dust after combustion. There was a drawback that you had to repeat a lot of times.
【０００５】本発明はこのような従来の欠点を改善し、
排ガス中の未燃分を連続して分析ができるようにした灰
中未燃分の連続分析装置を提供することを目的とするも
のである。The present invention overcomes these drawbacks of the prior art,
It is an object of the present invention to provide a continuous analyzer for unburned ash content that enables continuous analysis of unburned content in exhaust gas.
【０００６】[0006]
【課題を解決するための手段】本発明の灰中未燃分の連
続分析装置は、未燃分のダストを含んだ排ガスが流れる
ダクトと、該ダクトの中を流れる排ガスの一部を吸引す
るサンプリング管と、該サンプリング管で吸引した排ガ
スからダストを分離するサイクロンと、該サイクロンで
分離されたダストを一定速度で切出すフィーダーと、該
フィーダーから切出されたダストの量を連続的に計測す
るインパクト流量計と、該インパクト流量計を通過した
ダストに酸素を加える酸素供給管と、酸素供給量を計測
する流量計と、酸素が加えられた前記ダストを燃焼する
加熱装置と、該加熱装置による燃焼で生じたガスの成分
濃度をそれぞれ計測する酸素分析計、一酸化炭素分析
計、炭酸ガス分析計とを備えたことを特徴とするもので
ある。SUMMARY OF THE INVENTION A continuous analyzer for unburned ash in an ash according to the present invention sucks a duct through which an exhaust gas containing unburned dust flows and a portion of the exhaust gas flowing through the duct. Sampling pipe, cyclone for separating dust from exhaust gas sucked by the sampling pipe, feeder for cutting out dust separated by the cyclone at a constant speed, and continuously measuring the amount of dust cut out from the feeder Impact flowmeter, an oxygen supply pipe for adding oxygen to the dust passing through the impact flowmeter, a flowmeter for measuring the oxygen supply amount, a heating device for burning the dust added with oxygen, and the heating device It is characterized by being provided with an oxygen analyzer, a carbon monoxide analyzer, and a carbon dioxide gas analyzer, which respectively measure the component concentrations of the gas generated by the combustion by.
【０００７】[0007]
【作用】ダクトを流れている排ガスの一部はサンプリン
グ管に吸引され、サイクロンで分離されたダストはフィ
ーダーから一定速度で切出されてインパクト流量計で量
を連続的に計測された後、酸素供給管から酸素が加えら
れて加熱装置で燃焼され、燃焼で生じたガスの成分濃度
が酸素分析計、一酸化炭素分析計、炭酸ガス分析計でそ
れぞれ計測される。[Function] Part of the exhaust gas flowing through the duct is sucked into the sampling tube, and the dust separated by the cyclone is cut out from the feeder at a constant speed and the amount is continuously measured by the impact flow meter, and then the oxygen is removed. Oxygen is added from the supply pipe and burned by the heating device, and the component concentrations of the gas generated by the burning are measured by an oxygen analyzer, a carbon monoxide analyzer, and a carbon dioxide analyzer, respectively.
【０００８】[0008]
【実施例】以下、本発明の実施例を図を参照して説明す
る。Embodiments of the present invention will now be described with reference to the drawings.
【０００９】図１は本発明の一実施例の系統図であっ
て、ダクト１には図示しないボイラの燃焼によって生じ
た排ガス２が流されて、外部に排出されるようになって
いる。FIG. 1 is a system diagram of an embodiment of the present invention, in which an exhaust gas 2 generated by combustion of a boiler (not shown) is caused to flow through a duct 1 and is discharged to the outside.
【００１０】ダクト１にはサンプリング管３が接続され
ていて、このサンプリング管３にはサイクロン４、吸引
ポンプ５、戻り管６が順次接続されていて、再びダクト
１に戻る経路を形成している。A sampling pipe 3 is connected to the duct 1, and a cyclone 4, a suction pump 5 and a return pipe 6 are sequentially connected to the sampling pipe 3 to form a path for returning to the duct 1 again. .
【００１１】サイクロン４の底部には、粉体等を一定量
ずつ切出すロータリーバルブ等のフィーダー７が取付け
られており、フィーダー７の下方には、衝撃力によって
粉体等の流量を計測するインパクト流量計８が設けられ
ている。At the bottom of the cyclone 4, a feeder 7 such as a rotary valve that cuts out a certain amount of powder or the like is attached, and below the feeder 7, the impact of measuring the flow rate of the powder or the like by impact force. A flow meter 8 is provided.
【００１２】上述のフィーダー７、インパクト流量計８
は密閉室９の中に収められており、密閉室９の下部に
は、酸素１０を流量計１５を介して定常状態で密閉室９
内に供給する酸素供給管１１が挿入されている。The above-mentioned feeder 7 and impact flow meter 8
Is housed in a closed chamber 9. Under the closed chamber 9, oxygen 10 is supplied in a steady state via a flow meter 15 to the closed chamber 9.
An oxygen supply pipe 11 for supplying the inside is inserted.
【００１３】密閉室９の下端はアルミナ管１２が接続し
てあって、アルミナ管１２の周囲には、電気ヒータ等の
加熱装置１３が設けられている。そしてアルミナ管１２
の下端は、集塵室１４を介して、酸素分析計１６、一酸
化炭素分析計１７、炭酸ガス分析計１８に接続されてい
る。１９は燃焼灰切出装置を示す。An alumina tube 12 is connected to the lower end of the closed chamber 9, and a heating device 13 such as an electric heater is provided around the alumina tube 12. And the alumina tube 12
The lower end of is connected to the oxygen analyzer 16, the carbon monoxide analyzer 17, and the carbon dioxide gas analyzer 18 via the dust collection chamber 14. Reference numeral 19 indicates a combustion ash cutting device.
【００１４】次に、この装置の作用を説明する。Next, the operation of this device will be described.
【００１５】ダクト１中を流れている排ガス２の一部
は、吸引ポンプ５の作動によりサンプリング管３に吸引
される。そしてサンプリング管３に吸引された排ガス２
中に含まれているダストはサイクロン４で分離され、ダ
ストが分離された排ガス２は、吸引ポンプ５を通って戻
り管６からダクト１に戻される。A part of the exhaust gas 2 flowing in the duct 1 is sucked into the sampling tube 3 by the operation of the suction pump 5. And the exhaust gas 2 sucked into the sampling pipe 3
The dust contained therein is separated by the cyclone 4, and the exhaust gas 2 from which the dust has been separated is returned to the duct 1 from the return pipe 6 through the suction pump 5.
【００１６】サイクロン４で分離された排ガス２中のダ
ストは、サイクロン４の底部に取付けられているフィー
ダー７から一定量ずつ密閉室９内に切出され、インパク
ト流量計８上に落下して、単位時間当たりの流量が計測
される。The dust in the exhaust gas 2 separated by the cyclone 4 is cut out from the feeder 7 attached to the bottom of the cyclone 4 into the closed chamber 9 by a fixed amount, and falls on the impact flowmeter 8. The flow rate per unit time is measured.
【００１７】インパクト流量計８で単位時間当たりの流
量が計測されたダストは密閉室９内を下降し、酸素供給
管１１から流量計１５によって流量が計測され供給され
ている酸素が混合された後、アルミナ管１２を落下する
間に加熱装置１３から加えられる熱で燃焼する。この燃
焼の際には、酸素供給管１１から供給されて混合した酸
素により完全燃焼し、ガスとなってアルミナ管１２の下
端から集塵室１４に流入する。After the dust whose flow rate per unit time is measured by the impact flow meter 8 descends in the closed chamber 9 and the flow rate is measured from the oxygen supply pipe 11 by the flow meter 15 and the supplied oxygen is mixed. Combustion is performed by the heat applied from the heating device 13 while dropping the alumina tube 12. At the time of this combustion, the oxygen supplied from the oxygen supply pipe 11 and completely mixed burns to form gas, which flows into the dust collection chamber 14 from the lower end of the alumina pipe 12.
【００１８】集塵室１４に流入した燃焼後のガスは、酸
素分析計１６、一酸化炭素分析計１７、炭酸ガス分析計
１８に分けられて送られ、燃焼後のガス中に含まれてい
る酸素濃度、炭酸ガス濃度、一酸化炭素濃度が連続して
計測される。The gas after combustion which has flowed into the dust collecting chamber 14 is divided into an oxygen analyzer 16, a carbon monoxide analyzer 17, and a carbon dioxide gas analyzer 18 and sent, and is contained in the gas after combustion. The oxygen concentration, carbon dioxide concentration, and carbon monoxide concentration are continuously measured.
【００１９】この結果、燃焼前にインパクト流量計８で
計測したダストの単位時間当たりの流量と、流量計１５
によって計測された酸素供給量と、燃焼後に計測した酸
素濃度、炭酸ガス濃度、一酸化炭素濃度とから、ダスト
中に含まれていた炭素の量、すなわち未燃分の量を自動
的に計算で求めることができ、燃焼状態を調節して燃焼
効率を良くすることが可能となる。As a result, the flow rate of dust per unit time measured by the impact flow meter 8 before combustion and the flow meter 15
The amount of carbon contained in the dust, i.e., the amount of unburned carbon, can be automatically calculated from the oxygen supply amount measured by and the oxygen concentration, carbon dioxide concentration, and carbon monoxide concentration measured after combustion. Therefore, it is possible to improve the combustion efficiency by adjusting the combustion state.
【００２０】[0020]
【発明の効果】本発明は、排ガス中に含まれている未燃
分の量を、自動的に連続して分析できる効果がある。INDUSTRIAL APPLICABILITY The present invention has the effect of automatically and continuously analyzing the amount of unburned matter contained in exhaust gas.
【図１】本発明の一実施例の系統図である。FIG. 1 is a system diagram of an embodiment of the present invention.
１ ダクト ２ 排ガス ３ サンプリング管 ４ サイクロン ７ フィーダー ８ インパクト流量計 １１ 酸素供給管 １３ 加熱装置 １５ 流量計 １６ 酸素分析計 １７ 一酸化炭素分析計 １８ 炭酸ガス分析計 1 Duct 2 Exhaust gas 3 Sampling pipe 4 Cyclone 7 Feeder 8 Impact flow meter 11 Oxygen supply pipe 13 Heating device 15 Flow meter 16 Oxygen analyzer 17 Carbon monoxide analyzer 18 Carbon dioxide analyzer
Claims (1)
クトと、該ダクトの中を流れる排ガスの一部を吸引する
サンプリング管と、該サンプリング管で吸引した排ガス
からダストを分離するサイクロンと、該サイクロンで分
離されたダストを一定速度で切出すフィーダーと、該フ
ィーダーから切出されたダストの量を連続的に計測する
インパクト流量計と、該インパクト流量計を通過したダ
ストに酸素を加える酸素供給管と、酸素供給量を計測す
る流量計と、酸素が加えられた前記ダストを燃焼する加
熱装置と、該加熱装置による燃焼で生じたガスの成分濃
度をそれぞれ計測する酸素分析計、一酸化炭素分析計、
炭酸ガス分析計とを備えたことを特徴とする灰中未燃分
の連続分析装置。1. A duct in which exhaust gas containing unburned dust flows, a sampling pipe for sucking a part of the exhaust gas flowing in the duct, and a cyclone for separating dust from the exhaust gas sucked by the sampling pipe, A feeder that cuts out the dust separated by the cyclone at a constant speed, an impact flow meter that continuously measures the amount of dust cut out from the feeder, and oxygen that adds oxygen to the dust that has passed through the impact flow meter. A supply pipe, a flow meter for measuring the amount of oxygen supply, a heating device for burning the dust to which oxygen is added, an oxygen analyzer for measuring the concentration of each component of the gas generated by the combustion by the heating device, and a monoxide Carbon analyzer,
A continuous analyzer for unburned ash, comprising a carbon dioxide analyzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23472993A JPH0792155A (en) | 1993-09-21 | 1993-09-21 | Continuous analyzer for unburned ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23472993A JPH0792155A (en) | 1993-09-21 | 1993-09-21 | Continuous analyzer for unburned ash |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0792155A true JPH0792155A (en) | 1995-04-07 |
Family
ID=16975455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23472993A Pending JPH0792155A (en) | 1993-09-21 | 1993-09-21 | Continuous analyzer for unburned ash |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0792155A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002282676A (en) * | 2001-03-29 | 2002-10-02 | Sumitomo Heavy Ind Ltd | Waste gas treatment apparatus with improved dust removal capability |
| CN108828131A (en) * | 2018-05-28 | 2018-11-16 | 湖南三德科技股份有限公司 | Blanking mechanism and blanking method for elemental analyser |
-
1993
- 1993-09-21 JP JP23472993A patent/JPH0792155A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002282676A (en) * | 2001-03-29 | 2002-10-02 | Sumitomo Heavy Ind Ltd | Waste gas treatment apparatus with improved dust removal capability |
| CN108828131A (en) * | 2018-05-28 | 2018-11-16 | 湖南三德科技股份有限公司 | Blanking mechanism and blanking method for elemental analyser |
| CN108828131B (en) * | 2018-05-28 | 2024-04-16 | 湖南三德科技股份有限公司 | Blanking mechanism and blanking method for elemental analyzer |
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