WO1991014914A1 - Method of measuring feed rate of waste to be burnt - Google Patents
Method of measuring feed rate of waste to be burnt Download PDFInfo
- Publication number
- WO1991014914A1 WO1991014914A1 PCT/JP1991/000398 JP9100398W WO9114914A1 WO 1991014914 A1 WO1991014914 A1 WO 1991014914A1 JP 9100398 W JP9100398 W JP 9100398W WO 9114914 A1 WO9114914 A1 WO 9114914A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- waste
- unit time
- amount
- incinerator
- feed rate
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/50—Control or safety arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/442—Waste feed arrangements
- F23G5/444—Waste feed arrangements for solid waste
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
- G01F1/661—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters using light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/74—Devices for measuring flow of a fluid or flow of a fluent solid material in suspension in another fluid
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
- G06M11/00—Counting of objects distributed at random, e.g. on a surface
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
- G06M11/00—Counting of objects distributed at random, e.g. on a surface
- G06M11/02—Counting of objects distributed at random, e.g. on a surface using an electron beam scanning a surface line by line, e.g. of blood cells on a substrate
- G06M11/04—Counting of objects distributed at random, e.g. on a surface using an electron beam scanning a surface line by line, e.g. of blood cells on a substrate with provision for distinguishing between different sizes of objects
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2207/00—Control
- F23G2207/10—Arrangement of sensing devices
- F23G2207/112—Arrangement of sensing devices for waste supply flowrate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2207/00—Control
- F23G2207/20—Waste supply
Definitions
- the present invention relates to a method for measuring the amount of waste put into a fluidized bed incinerator.
- the fluidized bed incinerator 5 heats the fluidized bed of fluidized bed 11 composed of fluidized sand circulated to the lower part of the furnace in advance to about 600 ° C, In a state where the sand is fluidized by the air 16, the burnable material supplied from the charging seat 2 is burned in a short time. The unburned gas that has not been completely burned in the fluidized bed 11 is burned by the secondary air 15 supplied to the freeboard section 13, and the flue gas 14 is discharged from the furnace top. ing.
- incombustibles in the burnables are discharged out of the furnace from the bottom of the furnace together with the fluidized sand.
- the fluidized sand is separated and recirculated into the furnace.
- An object of the present invention is to provide a method for measuring the supplied amount of waste for incineration, which can solve the above problems.
- the method for measuring the supply amount of waste for incineration is a method for supplying incineration waste from a dust machine to an incinerator in a fluidized bed waste incinerator.
- the photovoltaic elements installed in the shot chamber detect the state of passage of the waste, and the detected signal indicates the amount of waste supplied (w) as mtk.
- the measurement is performed by the following arithmetic expression.
- Photoelectric elements installed in a shot for incineration waste to be put into an incinerator can detect waste in a non-contact manner and are resistant to corrosion and breakage, enabling long-term stable measurement .
- the amount of waste supplied can be measured instantaneously and without any time delay, stable combustion control can be performed.
- FIG. 1 is an explanatory diagram showing an example of an apparatus configuration for implementing the method of the present invention
- Fig. 2 is an explanatory diagram of the installation state of the photoelectric element
- FIG. 3 is an explanatory diagram of a detection signal of the photoelectric element
- Fig. 4 shows the distribution of waste supply at a certain t / T (detection time per unit time).
- Fig. 5 is an explanatory diagram showing the relationship between t ZT (detection time Z unit time) and the amount of waste supplied,
- FIG. 6 is an illustration of a fluidized bed incinerator.
- the photovoltaic element 1 for detecting the passing state of the waste 3 is provided in a shot 2 for injecting the waste 3 from the dust collector 4 into the incinerator 5. Then, the detection signal 6 of the photoelectric element 1 is sent to the arithmetic processing device 7, and the supply amount is measured.
- a pair of transmission type photoelectric switches including a light emitting section 1a and a light receiving section 1b is used as the photoelectric element 1, as shown in FIG. 2, a pair of transmission type photoelectric switches including a light emitting section 1a and a light receiving section 1b is used. Since the photoelectric element 1 is not in contact with the waste 3, corrosion and damage due to the waste are unlikely to occur.
- purge air was flowed between the light-emitting part 1a, light-receiving part 1b, and the shot 2. ing.
- the amount of the purge air, the kind of incineration for waste, by setting values other factors in furnace pressure, are adjusted in the range of 5 ⁇ 2 0.0 N m 3 / h ⁇ sets 0
- the light receiving section 1b When the incineration waste 3 blocks the optical path 9 of the photoelectric element 1, the light receiving section 1b does not sense the light, and a detection signal is output during that time. number 3
- the figure shows the output of the detection signal.
- a value of “1” or “0” is output as a detection signal according to the presence or absence of waste 3.
- the detection signal shown in FIG. 3 is signal-processed so as to show a value of ⁇ ⁇ '' when the waste 3 crosses the optical path 9 of the photoelectric element. It is possible. Then, while the waste 3 blocks the optical path 9 from the photoelectric element, the detection signal holds a value of “0”, and from the time of the “0” value, the amount of the incineration waste 3 can be calculated.
- stable combustion control can be performed by incorporating the measured supply amount into the combustion control system every moment.
- a transmission type photoelectric switch is used as the photoelectric element.
- a reflection type photoelectric element, a laser transmitting / receiving element, or the like may be used instead.
- the method for measuring the amount of waste supplied for incineration according to the present invention is as described above, and the waste can be detected in a non-contact manner by a photoelectric element provided in a shoot for putting the waste for incineration into an incinerator. It is hard to corrode or break, so stable measurement can be performed for a long time. In addition, since the amount of waste supplied can be measured instantaneously and without any time delay, stable combustion control can be performed.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Theoretical Computer Science (AREA)
- Electromagnetism (AREA)
- Environmental & Geological Engineering (AREA)
- Incineration Of Waste (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP91906422A EP0482201B1 (en) | 1990-03-27 | 1991-03-27 | Method of controlling a waste combustion process |
KR1019910701697A KR950011335B1 (ko) | 1990-03-27 | 1991-03-27 | 소각용 폐기물의 공급량 계측방법 |
DE69124186T DE69124186T2 (de) | 1990-03-27 | 1991-03-27 | Verfahren zur Regelung eines Abfallverbrennungsprozesses |
FI915582A FI915582A0 (fi) | 1990-03-27 | 1991-11-27 | Foerfarande foer maetning av matningshastigheten hos en braennpanna. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2/77381 | 1990-03-27 | ||
JP2077381A JPH0739854B2 (ja) | 1990-03-27 | 1990-03-27 | 焼却用廃棄物の供給量計測方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1991014914A1 true WO1991014914A1 (en) | 1991-10-03 |
Family
ID=13632316
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1991/000398 WO1991014914A1 (en) | 1990-03-27 | 1991-03-27 | Method of measuring feed rate of waste to be burnt |
Country Status (7)
Country | Link |
---|---|
US (1) | US5169268A (ja) |
EP (1) | EP0482201B1 (ja) |
JP (1) | JPH0739854B2 (ja) |
KR (1) | KR950011335B1 (ja) |
DE (1) | DE69124186T2 (ja) |
FI (1) | FI915582A0 (ja) |
WO (1) | WO1991014914A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19917572A1 (de) * | 1999-04-19 | 2000-10-26 | Abb Alstom Power Ch Ag | Verfahren zur automatischen Einstellung der Feuerung einer Müllverbrennungsanlage |
FR2863371B1 (fr) * | 2003-12-03 | 2006-02-03 | Jean Christophe Marius M Ealet | Methode et dispositif d'evaluation predictive de la charge thermique pour les usines d'incineration de dechets solides |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57184920A (en) * | 1981-05-09 | 1982-11-13 | Kubota Ltd | Powder passage detector |
JPS6057523B2 (ja) * | 1978-10-20 | 1985-12-16 | 株式会社タクマ | ごみ焼却炉におけるごみ供給量検出装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3932137A (en) * | 1973-11-08 | 1976-01-13 | Aero-Dyne Manufacturing, Inc. | Burner with automatic high-low operation |
JPS53148165A (en) * | 1977-05-30 | 1978-12-23 | Ebara Corp | Method of incinerating in fluidized bed incinerator and incinerator therefor |
US4205230A (en) * | 1977-08-29 | 1980-05-27 | Pretron Electronics Pty. Ltd. | Solid materials flow rate measurement |
JPS57419A (en) * | 1980-06-03 | 1982-01-05 | Matsumoto Noki Tekko Kk | Bottom plate opening and closing mechanism in rubber tyre incineration system |
JPS6057523A (ja) * | 1983-09-07 | 1985-04-03 | Seiko Epson Corp | 垂直磁気記録媒体 |
JP2623080B2 (ja) * | 1984-04-02 | 1997-06-25 | 株式会社日立製作所 | 先行制御型自動制御装置 |
JPS61100612A (ja) * | 1984-10-24 | 1986-05-19 | Ebara Corp | 焼却用廃棄物の投入量計測装置 |
-
1990
- 1990-03-27 JP JP2077381A patent/JPH0739854B2/ja not_active Expired - Fee Related
-
1991
- 1991-03-27 KR KR1019910701697A patent/KR950011335B1/ko not_active IP Right Cessation
- 1991-03-27 DE DE69124186T patent/DE69124186T2/de not_active Expired - Fee Related
- 1991-03-27 EP EP91906422A patent/EP0482201B1/en not_active Expired - Lifetime
- 1991-03-27 WO PCT/JP1991/000398 patent/WO1991014914A1/ja active IP Right Grant
- 1991-03-27 US US07/777,326 patent/US5169268A/en not_active Expired - Lifetime
- 1991-11-27 FI FI915582A patent/FI915582A0/fi not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6057523B2 (ja) * | 1978-10-20 | 1985-12-16 | 株式会社タクマ | ごみ焼却炉におけるごみ供給量検出装置 |
JPS57184920A (en) * | 1981-05-09 | 1982-11-13 | Kubota Ltd | Powder passage detector |
Non-Patent Citations (1)
Title |
---|
See also references of EP0482201A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP0482201A1 (en) | 1992-04-29 |
JPH0739854B2 (ja) | 1995-05-01 |
US5169268A (en) | 1992-12-08 |
KR920701755A (ko) | 1992-08-12 |
JPH03279703A (ja) | 1991-12-10 |
EP0482201A4 (en) | 1993-03-10 |
KR950011335B1 (ko) | 1995-09-30 |
DE69124186D1 (de) | 1997-02-27 |
EP0482201B1 (en) | 1997-01-15 |
FI915582A0 (fi) | 1991-11-27 |
DE69124186T2 (de) | 1997-08-21 |
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