CN103115357A - Circulating fluidized bed fire coal (waste incineration) boiler oxygen enrichment pulverized coal igniting steady burning device - Google Patents

Circulating fluidized bed fire coal (waste incineration) boiler oxygen enrichment pulverized coal igniting steady burning device Download PDF

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Publication number
CN103115357A
CN103115357A CN2013100175459A CN201310017545A CN103115357A CN 103115357 A CN103115357 A CN 103115357A CN 2013100175459 A CN2013100175459 A CN 2013100175459A CN 201310017545 A CN201310017545 A CN 201310017545A CN 103115357 A CN103115357 A CN 103115357A
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coal
coal dust
fluidized bed
waste incineration
circulating fluidized
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向家莹
高春森
任阳
王欣睿
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CHONGQING FURAN TECHNOLOGY Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/34Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

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Abstract

The invention relates to a circulating fluidized bed fire coal (waste incineration) boiler oxygen enrichment pulverized coal igniting steady burning device. The circulating fluidized bed fire coal (waste incineration) boiler oxygen enrichment pulverized coal igniting steady burning device is characterized in that according to the circulating fluidized bed fire coal (waste incineration) boiler oxygen enrichment pulverized coal igniting steady burning device, a primary air moving direction is a primary air fan (1), a primary air pipeline (2), a wind power mixer (6), a primary wind power pipeline (7), a pulverized coal combustion gun shell (8), an oil oxygen pipeline (9), a pure oxygen oil premix burning nozzle (10), a pulverized coal burning gun nozzle (11), and a circulating fluidized bed fire coal (waste incineration) boiler (12) in sequence. A pulverized coal moving direction is a pulverized coal transiting cabin (3), a pulverized coal feeder (4), a pulverized coal pipeline (5), the wind power mixer (6), the primary wind power pipeline (7), the pulverized coal combustion gun shell (8), the oil oxygen pipeline (9), the pure oxygen oil premixed combustion nozzle (10), the pulverized coal combustion gun nozzle (11), and the circulating fluidized bed fire coal (waste incineration) boiler (12) in sequence. The pulverized coal pipeline (5) is intersected with the primary air pipeline (2) in the wind power mixer (6), and the primary wind power pipeline (7) is composed and moves along a same direction.

Description

Circulating fluidized bed combustion coal (waste incineration) boiler oxygen-rich coal dust ignition smooth combustion apparatus
Technical field
The present invention relates to a kind of circulating fluidized bed combustion coal (waste incineration) boiler oxygen-rich coal dust ignition smooth combustion apparatus, refer in particular to the application in circulating fluidized bed combustion coal boiler and refuse incinerator of circulating fluid bed.
Background technology
Circulating fluidized bed combustion coal (waste incineration) boiler is wide due to its combustion adaptive, direct desulfurization denitration in stove, boiler load are regulated than all many-sides such as large, that boiler thermal output is high has outstanding advantages and is day by day attracted attention by thermal technology circle.Circulating fluidized bed combustion coal (waste incineration) boiler all adopts large grease gun igniting surely to fire, and when ignition of the boiler is surely fired, consumes great amount of fuel oil, not the fuel oil of combustion can cause environmental protecting device can't with the synchronous operation of ignition of the boiler device, can not reach national requirements for environmental protection.Enter 21st century, the fast development of national economy, China increases day by day to the demand of the energy, and the Global Oil resource is day by day in short supply constantly soaring with crude oil price, and controlling fuel consume has been the realistic problem that China's power industry has to face.Adopt oxygen-rich coal dust ignition smooth combustion technology to replace large grease gun igniting stable combustion technology, realize that " replace oil with coal " is an instant major issue of circulating fluidized bed combustion coal (waste incineration) boiler.
To sum up, circulating fluidized bed combustion coal (waste incineration) boiler adopts large grease gun igniting surely to fire and restricted national fuel-economizing implementation on sizable degree.
Summary of the invention
Adopt the deficiency of the steady combustion of large grease gun igniting for circulating fluidized bed combustion coal (waste incineration) boiler, the present invention proposes oxygen-rich coal dust ignition smooth combustion technology and replace large grease gun igniting stable combustion technology, circulating fluidized bed combustion coal (waste incineration) boiler oxygen-rich coal dust ignition smooth combustion apparatus has been invented in design.
For reaching above purpose, the solution of the present invention is:
A kind of circulating fluidized bed combustion coal (waste incineration) boiler oxygen-rich coal dust ignition smooth combustion apparatus, it is characterized in that this circulating fluidized bed combustion coal (waste incineration) boiler oxygen-rich coal dust ignition smooth combustion apparatus by a wind traffic direction, is successively: a wind blower fan (1), an airduct line (2), air and powder mixer (6), primary wind and powder pipeline (7), coal dust firing rifle housing (8), oily oxygen pipeline (9), pure oxygen oil premixed combustion spout (10), coal dust firing rifle spout (11), circulating fluidized bed combustion coal (waste incineration) boiler (12); Press the coal dust traffic direction, be successively: roll-over in coal dust (3), machine supplying powder (4), coal dust pipeline (5), air and powder mixer (6), primary wind and powder pipeline (7), coal dust firing rifle housing (8), oily oxygen pipeline (9), pure oxygen oil premixed combustion spout (10), coal dust firing rifle spout (11), circulating fluidized bed combustion coal (waste incineration) boiler (12); Coal dust pipeline (5) is located to intersect at air and powder mixer (6) with an airduct line (2), synthetic primary wind and powder pipeline (7), and operation in the same direction.
Further, a wind blower fan (1) is positioned at an airduct line (2) initiating terminal along a wind traffic direction, and a wind blower fan (1) provides power and the coal dust firing oxygen used of coal dust transportation, can control primary air flow by regulating a wind blower fan (1) rotating speed.
Further, roll-over in coal dust (3) is positioned at the initiating terminal of coal dust pipeline (5) along the coal dust traffic direction, this device ignition smooth combustion coal dust used is housed in roll-over in coal dust (3), fineness of pulverized coal is R75 ~ R100, and the coal dust in roll-over in coal dust (3) makes by coal pulverizer or vehicles drive obtains.
Further, machine supplying powder (4) is arranged between roll-over in coal dust (3) and air and powder mixer (6), and is arranged under coal dust roll-over (3), can control the coal dust amount by regulating machine supplying powder (4) rotating speed.
Further, air and powder mixer (6) is arranged on coal dust pipeline (5) and an airduct line (2) intersection, wind and coal dust are mixed in air and powder mixer (6), regulate the interior pulverized coal density of primary air of air and powder mixer (6) by a wind blower fan (1) and machine supplying powder (4), make pulverized coal density of primary air maintain 0 ~ 1kg/kg.
Further, coal dust firing rifle housing (8) is arranged on the lower former oil gun of circulating fluidized bed combustion coal (waste incineration) boiler (12) bed place, perhaps be arranged on circulating fluidized bed combustion coal (waste incineration) boiler (12) bed former oil gun place or the upper Secondary Air of bed exit, perhaps be arranged on simultaneously the lower former oil gun of circulating fluidized bed combustion coal (waste incineration) boiler (12) bed, the upper former oil gun of bed or bed upper Secondary Air exit.
Further, coal dust firing rifle housing (8), coal dust firing rifle spout (11) and pure oxygen oil premixed combustion spout (10) be all circle perpendicular to the profile on wind traffic direction, and axial line all is on same axial line.
Further, oil oxygen pipeline (9) axial line and pure oxygen oil premixed combustion spout (10) axial line are 0 ° ~ 90 ° angles, and two axial lines intersect, and pure oxygen oil premixed combustion spout (10) external diameter and oily oxygen pipeline (9) external diameter are all less than coal dust firing rifle housing (8) internal diameter.
Further, coal dust firing rifle housing (8) axial line and a wind traffic direction are 0 ° ~ 90 ° angles, and are connected with primary wind and powder pipeline (7).
Principle of the present invention and characteristics are: the flame that utilizes micro-fuel oil fully to burn and produce under the pure oxygen condition, this flame temperature is high, rigidity is strong, make the shallow bid that passes this flame be that in the pulverized coal flow of oxygen enrichment state, Pulverized Coal obtains the fast pyrogenation burning, wherein, the not only contained fugitive constituent burning of coal dust, because pulverized coal flow is the oxygen enrichment state, thereby also burning simultaneously of the contained solid carbon of this part coal dust, and then this part heat that coal dust firing produces, the whole pulverized coal flow that ignites is realized " replace oil with coal; with oxygen and aiding combustion ", reaches with the direct firing coal-dust stream of little oil firing; The pulverized coal flow of lighting is emitted heat, heat cycles fluidized bed burned-coal (waste incineration) furnace and burner hearth, and then ignite or light coal particle on circulating fluidized bed combustion coal (waste incineration) furnace, realize circulating fluidized bed combustion coal (waste incineration) boiler oxygen-rich coal dust ignition smooth combustion apparatus to circulating fluidized bed combustion coal (waste incineration) ignition of the boiler surely fire.
The coal dust that wind that a wind blower fan (1) provides and machine supplying powder (4) provide is located to mix at air and powder mixer (6), forms pulverized coal flow, and pulverized coal flow enters coal dust firing rifle housing (8) through primary wind and powder pipeline (7).
Pure oxygen penetrates from oily oxygen pipeline (9) high speed, is formed strong Rotary Oxygen air-flow by coal dust firing rifle housing (8) constraint, and when pulverized coal flow passed through this strong Rotary Oxygen air-flow, pulverized coal flow and the abundant premix of Rotary Oxygen air-flow formed oxygen-rich coal dust stream.
Oxygen-rich coal dust stream passes fuel oil and pure oxygen and locates to form thermal-flame at pure oxygen oil premixed combustion spout (10) and directly burn, and locates to form oxygen-rich coal dust flame at coal dust firing rifle spout (11).
Oxygen-rich coal dust flame sprays from coal dust firing rifle spout (11), emit heat, heat cycles fluidized bed burned-coal (waste incineration) boiler (12) siege and burner hearth, and then ignite or light coal particle on circulating fluidized bed combustion coal (waste incineration) boiler (12) siege.
Above principle and characteristics make the pulverized coal flow sufficient combustion, the burning heat that produces ignites or puts coal-burning particle, the amount of flue gas emission and the temperature that produce after the pulverized coal flow burning are equal to amount of flue gas emission and the temperature that oil firing produces, and are conducive to the application at circulating fluidized bed combustion coal boiler and refuse incinerator of circulating fluid bed.
Description of drawings:
Fig. 1 is a kind of circulating fluidized bed combustion coal (waste incineration) boiler oxygen-rich coal dust ignition smooth combustion apparatus.
Specific embodiments:
Below in conjunction with specification and Fig. 1, circulating fluidized bed combustion coal (waste incineration) boiler oxygen-rich coal dust ignition smooth combustion apparatus is described further.
Circulating fluidized bed combustion coal (waste incineration) boiler oxygen-rich coal dust ignition smooth combustion apparatus by a wind traffic direction is successively: a wind blower fan (1), an airduct line (2), air and powder mixer (6), primary wind and powder pipeline (7), coal dust firing rifle housing (8), oily oxygen pipeline (9), pure oxygen oil premixed combustion spout (10), coal dust firing rifle spout (11), circulating fluidized bed combustion coal (waste incineration) boiler (12); Press the coal dust traffic direction, be successively: roll-over in coal dust (3), machine supplying powder (4), coal dust pipeline (5), air and powder mixer (6), primary wind and powder pipeline (7), coal dust firing rifle housing (8), oily oxygen pipeline (9), pure oxygen oil premixed combustion spout (10), coal dust firing rifle spout (11), circulating fluidized bed combustion coal (waste incineration) boiler (12); Coal dust pipeline (5) is located to intersect at air and powder mixer (6) with an airduct line (2), synthetic primary wind and powder pipeline (7), and operation in the same direction.
A wind blower fan (1) is positioned at an airduct line (2) initiating terminal along a wind traffic direction, and a wind blower fan (1) provides power and the coal dust firing oxygen used of coal dust transportation, can control primary air flow by regulating a wind blower fan (1) rotating speed.
Roll-over in coal dust (3) is positioned at the initiating terminal of coal dust pipeline (5) along the coal dust traffic direction, this device ignition smooth combustion coal dust used is housed in roll-over in coal dust (3), fineness of pulverized coal is R75 ~ R100, and the coal dust in roll-over in coal dust (3) makes by coal pulverizer or vehicles drive obtains.
Machine supplying powder (4) is arranged between roll-over in coal dust (3) and air and powder mixer (6), and is arranged under coal dust roll-over (3), can control the coal dust amount by regulating machine supplying powder (4) rotating speed.
Air and powder mixer (6) is arranged on coal dust pipeline (5) and an airduct line (2) intersection, wind and coal dust are mixed in air and powder mixer (6), regulate the interior pulverized coal density of primary air of air and powder mixer (6) by a wind blower fan (1) and machine supplying powder (4), make pulverized coal density of primary air maintain 0 ~ 1kg/kg.
Coal dust firing rifle housing (8) is arranged on the lower former oil gun of circulating fluidized bed combustion coal (waste incineration) boiler (12) bed place, perhaps be arranged on circulating fluidized bed combustion coal (waste incineration) boiler (12) bed former oil gun place or the upper Secondary Air of bed exit, perhaps be arranged on simultaneously the lower former oil gun of circulating fluidized bed combustion coal (waste incineration) boiler (12) bed, the upper former oil gun of bed or bed upper Secondary Air exit.
Coal dust firing rifle housing (8), coal dust firing rifle spout (11) and pure oxygen oil premixed combustion spout (10) be all circle perpendicular to the profile on wind traffic direction, and axial line all is on same axial line.
Oil oxygen pipeline (9) axial line and pure oxygen oil premixed combustion spout (10) axial line are 0 ° ~ 90 ° angles, and two axial lines are crossing, and pure oxygen oil premixed combustion spout (10) external diameter and oily oxygen pipeline (9) external diameter are all less than coal dust firing rifle housing (8) internal diameter.
Coal dust firing rifle housing (8) axial line and a wind traffic direction are 0 ° ~ 90 ° angles, and are connected with primary wind and powder pipeline (7).
The flame that utilizes micro-fuel oil fully to burn and produce under the pure oxygen condition, this flame temperature is high, rigidity is strong, make the shallow bid that passes this flame be that in the pulverized coal flow of oxygen enrichment state, Pulverized Coal obtains the fast pyrogenation burning, wherein, the not only contained fugitive constituent burning of coal dust, because pulverized coal flow is the oxygen enrichment state, thereby also burning simultaneously of the contained solid carbon of this part coal dust, and then this part heat that coal dust firing produces, the whole pulverized coal flow that ignites is realized " replace oil with coal; with oxygen and aiding combustion ", reaches with the direct firing coal-dust stream of little oil firing; The pulverized coal flow of lighting is emitted heat, heat cycles fluidized bed burned-coal (waste incineration) furnace and burner hearth, and then ignite or light coal particle on circulating fluidized bed combustion coal (waste incineration) furnace, realize circulating fluidized bed combustion coal (waste incineration) boiler oxygen-rich coal dust ignition smooth combustion apparatus to circulating fluidized bed combustion coal (waste incineration) ignition of the boiler surely fire.
The coal dust that wind that a wind blower fan (1) provides and machine supplying powder (4) provide is located to mix at air and powder mixer (6), forms pulverized coal flow, and pulverized coal flow enters coal dust firing rifle housing (8) through primary wind and powder pipeline (7).
Pure oxygen penetrates from oily oxygen pipeline (9) high speed, is formed strong Rotary Oxygen air-flow by coal dust firing rifle housing (8) constraint, and when pulverized coal flow passed through this strong Rotary Oxygen air-flow, pulverized coal flow and the abundant premix of Rotary Oxygen air-flow formed oxygen-rich coal dust stream.
Oxygen-rich coal dust stream passes fuel oil and pure oxygen and locates to form thermal-flame at pure oxygen oil premixed combustion spout (10) and directly burn, and locates to form oxygen-rich coal dust flame at coal dust firing rifle spout (11).
Oxygen-rich coal dust flame sprays from coal dust firing rifle spout (11), emit heat, heat cycles fluidized bed burned-coal (waste incineration) boiler (12) siege and burner hearth, and then ignite or light coal particle on circulating fluidized bed combustion coal (waste incineration) boiler (12) siege.
Above enforcement; only to general description of the present invention; be not that scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; anyone all should fall in the definite protection domain of claims of the present invention various distortion and improvement that technical scheme of the present invention is made.

Claims (9)

1. a circulating fluidized bed combustion coal (waste incineration) boiler oxygen-rich coal dust ignition smooth combustion apparatus, it is characterized in that this circulating fluidized bed combustion coal (waste incineration) boiler oxygen-rich coal dust ignition smooth combustion apparatus by a wind traffic direction, is successively: a wind blower fan (1), an airduct line (2), air and powder mixer (6), primary wind and powder pipeline (7), coal dust firing rifle housing (8), oily oxygen pipeline (9), pure oxygen oil premixed combustion spout (10), coal dust firing rifle spout (11), circulating fluidized bed combustion coal (waste incineration) boiler (12); Press the coal dust traffic direction, be successively: roll-over in coal dust (3), machine supplying powder (4), coal dust pipeline (5), air and powder mixer (6), primary wind and powder pipeline (7), coal dust firing rifle housing (8), oily oxygen pipeline (9), pure oxygen oil premixed combustion spout (10), coal dust firing rifle spout (11), circulating fluidized bed combustion coal (waste incineration) boiler (12); Coal dust pipeline (5) is located to intersect at air and powder mixer (6) with an airduct line (2), synthetic primary wind and powder pipeline (7), and operation in the same direction.
2. a kind of circulating fluidized bed combustion coal as claimed in claim 1 (waste incineration) boiler oxygen-rich coal dust ignition smooth combustion apparatus, it is characterized in that a wind blower fan (1) is positioned at an airduct line (2) initiating terminal along a wind traffic direction, a wind blower fan (1) provides power and the coal dust firing oxygen used of coal dust transportation, can control primary air flow by regulating a wind blower fan (1) rotating speed.
3. a kind of circulating fluidized bed combustion coal as claimed in claim 1 (waste incineration) boiler oxygen-rich coal dust ignition smooth combustion apparatus, it is characterized in that roll-over in coal dust (3) is positioned at the initiating terminal of coal dust pipeline (5) along the coal dust traffic direction, this device ignition smooth combustion coal dust used is housed in roll-over in coal dust (3), fineness of pulverized coal is R75 ~ R100, and the coal dust in roll-over in coal dust (3) makes by coal pulverizer or vehicles drive obtains.
4. a kind of circulating fluidized bed combustion coal as claimed in claim 1 (waste incineration) boiler oxygen-rich coal dust ignition smooth combustion apparatus, it is characterized in that machine supplying powder (4) is arranged between roll-over in coal dust (3) and air and powder mixer (6), and be arranged under coal dust roll-over (3), can control the coal dust amount by regulating machine supplying powder (4) rotating speed.
5. a kind of circulating fluidized bed combustion coal as claimed in claim 1 (waste incineration) boiler oxygen-rich coal dust ignition smooth combustion apparatus, it is characterized in that air and powder mixer (6) is arranged on coal dust pipeline (5) and an airduct line (2) intersection, wind and coal dust are mixed in air and powder mixer (6), regulate the interior pulverized coal density of primary air of air and powder mixer (6) by a wind blower fan (1) and machine supplying powder (4), make pulverized coal density of primary air maintain 0 ~ 1kg/kg.
6. a kind of circulating fluidized bed combustion coal as claimed in claim 1 (waste incineration) boiler oxygen-rich coal dust ignition smooth combustion apparatus, it is characterized in that coal dust firing rifle housing (8) is arranged on the lower former oil gun of circulating fluidized bed combustion coal (waste incineration) boiler (12) bed place, perhaps be arranged on circulating fluidized bed combustion coal (waste incineration) boiler (12) bed former oil gun place or the upper Secondary Air of bed exit, perhaps be arranged on simultaneously the lower former oil gun of circulating fluidized bed combustion coal (waste incineration) boiler (12) bed, the upper former oil gun of bed or bed upper Secondary Air exit.
7. a kind of circulating fluidized bed combustion coal as claimed in claim 1 (waste incineration) boiler oxygen-rich coal dust ignition smooth combustion apparatus, it is characterized in that coal dust firing rifle housing (8), coal dust firing rifle spout (11) and pure oxygen oil premixed combustion spout (10) be all circle perpendicular to the profile on wind traffic direction, and axial line is in all on same axial line.
8. a kind of circulating fluidized bed combustion coal as claimed in claim 1 (waste incineration) boiler oxygen-rich coal dust ignition smooth combustion apparatus, it is characterized in that oily oxygen pipeline (9) axial line and pure oxygen oil premixed combustion spout (10) axial line is 0 ° ~ 90 ° angles, and two axial lines intersect, and pure oxygen oil premixed combustion spout (10) external diameter and oily oxygen pipeline (9) external diameter are all less than coal dust firing rifle housing (8) internal diameter.
9. a kind of circulating fluidized bed combustion coal as claimed in claim 1 (waste incineration) boiler oxygen-rich coal dust ignition smooth combustion apparatus, it is characterized in that coal dust firing rifle housing (8) axial line and a wind traffic direction are 0 ° ~ 90 ° angles, and be connected with primary wind and powder pipeline (7).
CN2013100175459A 2013-01-17 2013-01-17 Circulating fluidized bed fire coal (waste incineration) boiler oxygen enrichment pulverized coal igniting steady burning device Pending CN103115357A (en)

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Cited By (4)

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Publication number Priority date Publication date Assignee Title
CN103386413A (en) * 2013-07-26 2013-11-13 上海宝锋工程技术有限公司 Garbage incinerating device and garbage incinerating method
CN105318326A (en) * 2015-06-16 2016-02-10 湖南联新能源环保科技股份有限公司 High-low circulating fluidized bedboiler
CN106322365A (en) * 2015-07-01 2017-01-11 重庆市富燃科技有限责任公司 Apparatus and method for generating carbon monoxide through igniting coal dust at nozzle
CN107543196A (en) * 2017-08-31 2018-01-05 山东英电环保科技有限公司 Coal unit depth peak regulation surely fires system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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CN105318326A (en) * 2015-06-16 2016-02-10 湖南联新能源环保科技股份有限公司 High-low circulating fluidized bedboiler
CN106322365A (en) * 2015-07-01 2017-01-11 重庆市富燃科技有限责任公司 Apparatus and method for generating carbon monoxide through igniting coal dust at nozzle
CN107543196A (en) * 2017-08-31 2018-01-05 山东英电环保科技有限公司 Coal unit depth peak regulation surely fires system

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