CN206626580U - The system of coal-burning power plant's cooperated with consumer waste gasification - Google Patents
The system of coal-burning power plant's cooperated with consumer waste gasification Download PDFInfo
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- CN206626580U CN206626580U CN201720400538.0U CN201720400538U CN206626580U CN 206626580 U CN206626580 U CN 206626580U CN 201720400538 U CN201720400538 U CN 201720400538U CN 206626580 U CN206626580 U CN 206626580U
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
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Abstract
The utility model discloses a kind of system of coal-burning power plant's cooperated with consumer waste gasification, First air or Secondary Air, the extracted steam from turbine of coal-fired plant boiler are sent into domestic garbage gasification device and it are gasified, combustion gas after gasification is introduced in boiler, is implemented steady combustion or is fired again.In the cost input of equipment, only need additionally to increase a gasification furnace, without carrying out large-scale scrap build and research and development, it is possible to realize the recycling of the processing of house refuse and the superfluous resource of Thermal generation unit.The utility model directly utilizes coal unit existing weaponry and equipment, coal-burning power plant's superfluous production capacity and domestic garbage resource are utilized into combination, garbage disposal cost of investment is reduced, while solves coal-burning power plant's low-load combustion-stabilizing, combustion retrofit investment, realizes maximizing the benefits.
Description
Technical field
It the utility model is related to a kind of system of coal-burning power plant's cooperated with consumer waste gasification.
Background technology
With the rapid development of economy, the continuous intensification of Development of China's Urbanization, generation sustainable growth house refuse
The soil body is taken, pollutes environment, also has negative effect to the health of people.Generated electricity right and wrong using burning domestic garbage
The processing method usually seen.Part saves, autonomous region also issues《On further strengthening burning city domestic garbage processing work
Opinion》, it is desirable to the processing of house refuse, in principle without exception from burning (generating) treatment technology.
But the disposal ability of existing municipal solid waste incinerator is insufficient, according to opinion, various regions need a large amount of build
Incineration plant, investment is huge, and construction is complicated.Current life refuse processing method, be all house refuse is crushed, sorted,
Desiccation, after, be sent into special waste incinerator and burnt, above-mentioned technology all has problems with：
(1) a large amount of bioxin are produced, and bioxin is difficult that natural degradation eliminates in environment, has very strong toxicity, has
Investigation shows that the dioxins concentration in waste incineration practitioner's blood is 806pgTEQ/L, is 40 times of horizontal left sides of normal population
It is right；Being discharged into bioxin in atmospheric environment can adsorb on particulate matter, be deposited to water body and soil, then pass through food chain
Enrichment enter human body, endanger the health and environment of people；
(2) substantial amounts of N0 is producedXDeng other pollutants, pollute the environment, and the pollutant process equipment investment of incineration plant
Amount is big, and input cost is high；
(3) large-scale incineration plant is built, it is necessary to put into boiler and its corollary system, input cost is high, takes substantial amounts of city
Or urban land, investment are big.
At the same time, with the economic slowdown in growth in China, electricity consumption deficiency, there is production capacity surplus, generating set in coal-burning power plant
Utilize hourage and utilization rate of equipment and installations continuous slide.How to improve utilization rate of equipment and installations and improve economy of power plant and social benefit undoubtedly
It is significant.Simultaneously as decline of the unit using hourage, the boiler of coal-burning power plant is low negative often in underrun
Boiler often combustion instability under lotus.How boiler surely combustion and at present urgently to be resolved hurrily major issue are ensured.In addition, coal-fired electricity
The pollutant disposal system that factory has in itself is very complete and efficient, because the underrun of unit, its utilization rate deficiency are difficult
To play optimum efficiency.
If in the newly-built domestic garbage gasification device in existing coal-burning power plant, high temperature First air or two caused by boiler of power plant is utilized
Secondary wind, steam turbine vapor implement the gasification of house refuse, are not only effectively utilized all kinds of thermals source caused by power plant, improve electricity
The service efficiency of plant, and save the thermal source of conventional municipal solid waste incinerator and energy expenditure (generally requires to mix burning coal
Charcoal) and newly-built pollutant disposal system significant cost.In addition, combustion gas caused by gasification can return to boiler and carry out burning realization
Steady combustion, while take into account NOXReduction, also have very big benefit for the underload normal operation of boiler.Therefore, Thermal generation unit
Cooperated with consumer waste gasification has multiple benefits, achieves many things at one stroke.Can be by domestic garbage burning electricity generation and coal-burning power plant's unit phase
With reference to.
Utility model content
The utility model is in order to solve the above problems, it is proposed that a kind of system of coal-burning power plant's cooperated with consumer waste gasification and
Method, the utility model directly utilizes the existing boiler plant of coal-burning power plant, by the high temperature First air or Secondary Air and vapour of boiler
Turbine draw gas as thermal source introduce domestic garbage gasification device, for the gasification of house refuse, then will gasification after caused combustion gas
It is sent into boiler and carries out high temperature incineration, suppress the precipitation of bioxin from source, had not only handled house refuse but also to solve boiler low
The problem of load stable burning.
To achieve these goals, the utility model adopts the following technical scheme that：
A kind of system of coal-burning power plant's cooperated with consumer waste gasification, extract Thermal generation unit boiler high temperature First air or
Secondary Air and extracted steam from turbine are sent into gasification installation and the house refuse of its inside are gasified, after gasification caused combustion gas draw
Enter the burner region in Thermal generation unit boiler, aid in coal combustion, realize steady combustion.By the way that combustion gas is introduced into burner
Section, can realize steady combustion, solve the problems, such as boiler low load stable combustion.Meanwhile extracted steam from turbine is together sent into gasification installation, have
Help the hydrogen content of caused combustion gas after raising is gasified.
Further, the combustion gas introduces boiler furnace top by high-temperature fuel gas blower fan, using fractional combustion mode, suppression
NOx generation in stove processed, realize the low NOx drainage of coal-fired plant boiler.
Further, the gasification installation is gasification furnace.
Further, the gasification installation includes drying device, and house refuse is dried into processing.
House refuse first passes through the processing such as sorting, crushing and drying in advance.
A kind of system of coal-burning power plant's cooperated with consumer waste gasification, extract Thermal generation unit boiler high temperature First air or
Secondary Air and extracted steam from turbine are sent into gasification installation and the house refuse of its inside are gasified, after gasification caused combustion gas draw
Enter the upper end of the burner region in Thermal generation unit boiler, be classified and fired again.Drop is can aid in by firing again
The discharge capacity of low NOx, realizes energy-saving and environmental protection.
A kind of method of Thermal generation unit cooperated with consumer waste gasification, by high temperature one caused by Thermal generation unit boiler
Secondary wind or Secondary Air and extracted steam from turbine are sent directly into gasification installation and the house refuse of its inside are gasified, and gasification is produced
The burner region that raw combustion gas is introduced in boiler, coal combustion is aided in, realize steady combustion, solve the problems, such as low-load combustion-stabilizing.
A kind of method of Thermal generation unit cooperated with consumer waste gasification, by high temperature one caused by Thermal generation unit boiler
Secondary wind or Secondary Air and extracted steam from turbine are sent directly into gasification installation and the house refuse of its inside are gasified, and gasification is produced
The upper end for the burner region that raw combustion gas is introduced in boiler, implement classification and fire again, reduce coal-fired boiler NOx growing amount.
Boiler First air or Secondary Air or Secondary Air temperature are 100-300 DEG C.
Extracted steam from turbine temperature is 100-500 DEG C.
First air or secondary air flow and the amount of drawing gas determine according to house refuse amoun.
Compared with prior art, the beneficial effects of the utility model are：
(1) the utility model is by the high temperature First air of the existing boiler plant in coal-burning power plant or Secondary Air volume extracted steam from turbine
It is used for domestic garbage gasification as thermal source, then above-mentioned boiler plant is sent into combustion gas caused by gasification and burnt, it is not necessary to builds
Found multiple incineration plants, it is possible to disposal of resources efficiently, inexpensive is carried out to house refuse, fills up domestic and international technological gap；
(2) recycling of the processing of house refuse and the superfluous resource of Thermal generation unit is combined by the utility model,
A small amount of boiler high temperature First air or Secondary Air and extracted steam from turbine can be utilized, so as to slightly reduce power generating capacity and generating
Hourage, this matches with current power plant's situation.
(3) in the cost input of equipment, only need additionally to increase a gasification furnace, without carrying out large-scale equipment
Transformation and research and development, by combustion gas loopback boiler, solve the steady combustion problem under coal-burning power plant's underload, realize maximizing the benefits；
(4) return spray boiler using combustion gas caused by refuse gasification and implement fractional combustion, help to reduce tar, N0XDeng dirt
Contaminate the discharge of thing so that boiler is more environmentally friendly.Furthermore, it is not necessary that independent newly-built Pollution in Municipal Solid Waste Incineration processing system, using power plant
Existing pollutant disposal system itself, improves the utilization ratio of equipment, and integrated cost substantially reduces.
(5) traditional waste incineration and generating electricity technology, carried out in oxidizing atmosphere, it is to be difficult to avoid that to produce dioxin
's.Even if generating a small amount of bioxin in refuse gasification process, it can also be decomposed in boiler by high-temp combustion, ensure that two
Dislike the poisonous organic gas complete decomposition combustions at high temperature such as English.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its illustrate be used for explain the application, do not form the improper restriction to the application.
Fig. 1 is the structural representation of the first embodiment of the present utility model；
Fig. 2 is the structural representation of second of embodiment of the present utility model；
Wherein：1st, drying device, 2, gasification furnace, 3, high-temperature fuel gas blower fan, 4, burning boiler, 5, burner, 6, steam turbine,
7th, generator, 8, air preheater, 9, First air or Secondary Air, 10, lime-ash, 11, the flue gas of discharge, 12, fire caused by gasification
Gas, 13, pretreated house refuse, 14, flue, 15, extracted steam from turbine.
Embodiment：
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
It is noted that described further below is all exemplary, it is intended to provides further instruction to the application.It is unless another
Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
As background technology is introduced, domestic garbage burning electricity generation technology being in the prior art present, pollution to be all present big,
The problem of input cost is huge, and building renovation is big, in order to solve technical problem as above, present applicant proposes a kind of coal-burning power plant
Cooperated with consumer waste gasification system and method.
In a kind of typical embodiment of the application, as shown in Figure 1, there is provided a kind of coal-burning power plant's cooperated with consumer waste
Gasification system, the First air or Secondary Air and extracted steam from turbine of extraction part coal-fired plant boiler are sent directly into gasification installation to it
Internal house refuse is gasified, and the burner region that caused combustion gas is introduced in boiler after gasification, aids in coal combustion,
Realize steady combustion.By the way that combustion gas is introduced into combustor section, steady combustion can be realized, solves the problems, such as boiler low load stable combustion.
Combustion gas is introduced in boiler by high-temperature fuel gas blower fan.
Gasification installation is gasification furnace.
Gasification installation includes lifting device, and house refuse is sent into its processing region.
House refuse first passes through the processing such as sorting, crushing and drying in advance.
Vapor is extracted from the steam turbine of coal-burning power plant gasification installation is sent into together with First air or Secondary Air, improve generation
The hydrogen content of gasifying gas.
A kind of coal-burning power plant's cooperated with consumer waste gasification process, by the First air of the boiler of coal-burning power plant or Secondary Air and vapour
Turbine, which draws gas, to be sent directly into gasification installation the house refuse of its inside is gasified, and combustion gas caused by gasification is introduced in boiler
Burner region, aid in coal combustion, realize steady combustion, solve the problems, such as low-load combustion-stabilizing.
As shown in Fig. 2 second of exemplary embodiment of the present utility model, a kind of coal-burning power plant's cooperated with consumer waste gasification
System, the First air or Secondary Air and extracted steam from turbine of the boiler of coal-burning power plant are sent directly into life of the gasification installation to its inside
Rubbish is gasified, and the upper end for the burner region that the combustion gas after gasification is introduced in boiler, carries out fractional combustion.By dividing
Level fires the discharge capacity that can aid in and reduce nitrogen oxides again, realizes energy-saving and environmental protection.
Gasification installation has deslagging part.
Wherein, gasification installation, air preheater, high-temperature fuel gas blower fan etc. use existing device.
The preferred embodiment of the application is the foregoing is only, is not limited to the application, for the skill of this area
For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair
Change, equivalent substitution, improvement etc., should be included within the protection domain of the application.
It is not new to this practicality although above-mentioned specific embodiment of the present utility model is described with reference to accompanying drawing
The limitation of type protection domain, one of ordinary skill in the art should be understood that on the basis of the technical solution of the utility model, ability
Field technique personnel need not pay the various modifications that creative work can make or deformation still in protection model of the present utility model
Within enclosing.
Claims (8)
1. a kind of system of coal-burning power plant's cooperated with consumer waste gasification, it is characterized in that：Extract the high temperature of Thermal generation unit boiler
First air or Secondary Air and extracted steam from turbine are sent into gasification installation and the house refuse of its inside are gasified, and are produced after gasification
The burner region that introduces in Thermal generation unit boiler of combustion gas, aid in coal combustion, realize steady combustion.
2. a kind of system of coal-burning power plant's cooperated with consumer waste gasification as claimed in claim 1, it is characterized in that：The combustion gas is led to
Cross high-temperature fuel gas blower fan and introduce boiler furnace top, using fractional combustion mode, suppress the generation of NOx in stove, realize coal-fired electricity
The low NOx drainage of factory's boiler.
3. a kind of system of coal-burning power plant's cooperated with consumer waste gasification as claimed in claim 1, it is characterized in that：The gasification dress
It is set to gasification furnace.
4. a kind of system of coal-burning power plant's cooperated with consumer waste gasification as claimed in claim 1, it is characterized in that：The gasification dress
Put including drying device, processing is dried in house refuse.
5. a kind of system of coal-burning power plant's cooperated with consumer waste gasification as claimed in claim 1, it is characterized in that：House refuse is pre-
First pass through sorting, crushing and drying process.
6. a kind of system of coal-burning power plant's cooperated with consumer waste gasification, it is characterized in that：Extract the high temperature of Thermal generation unit boiler
First air or Secondary Air and extracted steam from turbine are sent into gasification installation and the house refuse of its inside are gasified, and are produced after gasification
Combustion gas introduce Thermal generation unit boiler in burner region upper end, be classified and fired again.
7. a kind of system of coal-burning power plant's cooperated with consumer waste gasification as described in claim 1 or 6, it is characterized in that：Boiler one
Secondary wind or Secondary Air or Secondary Air temperature are 100-300 DEG C, and extracted steam from turbine temperature is 100-500 DEG C.
8. a kind of system of coal-burning power plant's cooperated with consumer waste gasification as described in claim 1 or 6, it is characterized in that：First air
Or secondary air flow and the amount of drawing gas determine according to house refuse amoun.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720400538.0U CN206626580U (en) | 2017-04-17 | 2017-04-17 | The system of coal-burning power plant's cooperated with consumer waste gasification |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106940017A (en) * | 2017-04-17 | 2017-07-11 | 山东大学 | The system and method for coal-burning power plant's cooperated with consumer waste gasification |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106940017A (en) * | 2017-04-17 | 2017-07-11 | 山东大学 | The system and method for coal-burning power plant's cooperated with consumer waste gasification |
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