CN105443171A - Incineration power generation process adopting refuse derived fuel (RDF) prepared from refuse - Google Patents
Incineration power generation process adopting refuse derived fuel (RDF) prepared from refuse Download PDFInfo
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- CN105443171A CN105443171A CN201410409660.5A CN201410409660A CN105443171A CN 105443171 A CN105443171 A CN 105443171A CN 201410409660 A CN201410409660 A CN 201410409660A CN 105443171 A CN105443171 A CN 105443171A
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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
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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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
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Abstract
The invention discloses an incineration power generation process adopting refuse derived fuel (RDF) prepared from refuse. The original household refuse is sorted, crushed, dried and prepared into the solid RDF to be combusted, hot air generated during combustion is used for preparing steam through heat exchange, and then the steam is introduced into a steam generator for power generation. According to the incineration power generation process adopting the RDF prepared from the refuse, the household refuse is prepared into the combustible solid RDF which can be combusted as coal briquettes, the total fly ash amount is greatly lowered, emission of heavy metal is effectively suppressed, and the emission amount of combustion smoke is reduced. The heat value of the solid RDF is far higher than that of refuse organic matters, so that the generation efficiency is improved. Due to the storability and high density of the solid RDF, refuse distribution type terminal treatment is achieved, and practicability for treatment of refuse in rural and remote areas is high.
Description
Technical field
The present invention relates to the processing technology field of domestic garbage, particularly relate to a kind of rubbish and prepare RDF burning electricity generation technique.
Background technique
Along with the development of society, the quickening of urbanization process, urban population increases, living standards of the people improve, and the output of domestic waste is constantly increasing, and the composition of domestic garbage is also increasingly sophisticated, day by day serious to the harm of the pollution of environment and people ' s health, also limit the development in city.China is the first in the world large carbon emission state, second largest energy-consuming state; but the coal of China and petroleum resources deposit do not enrich; occupancy volume per person is lower; face energy crisis; and fossil energy in use discharges a large amount of harmful gases; befouling environment, affects the healthy of the people.Electric energy cleanliness without any pollution, can convert the other forms of energy such as mechanical energy, luminous energy, heat energy easily to, and extensively be utilized by people.Now, electric energy is inseparable with daily life.
Existing trash processing way is landfill, burning and compost mainly.Landfill method floor space is large, easily pollutes underground water and air, and resource also can not get recycling.Although burning method treatment effeciency is high, China's msw water content is high, calorific value is low, and need add high-grade fuel combustion-supporting, thus operating cost is high; Meanwhile, the flying dust difficult treatment containing dioxin and heavy metal, although adopt first and then complicated cleaning system, still containing micro-dioxin in flue gas, enters pollution of atmosphere environment; In addition, burning fails to make rubbish obtain maximum resource completely.Although compost is a good method, the processing time is long, and floor space is large, and comprehensive benefit is poor.If domestic garbage can be made fuel through process, utilize these fuel to generate electricity, the process problem of domestic garbage can not only be solved, electric energy can also be provided for daily life, there is good development prospect.
Application number be 201220184786.3 Chinese patent disclose the utility model patent of " garbage derivatived fuel integrated gas-steam combined cycle power plant device " by name, the Chinese patent of application number 201220184784.4 discloses the utility model patent of " garbage derivatived fuel combination type gas-steam combined cycle power generating device " by name, application number be 201220382981.7 Chinese patent disclose " a kind of mud by name, garbage derivatived fuel combination combined cycle generation system of fuel gas-steam " utility model patent, although these technological schemes reach above object to a certain extent, but ubiquity can not make full use of heat energy, tail gas is direct or be indirectly discharged in air after simple process, heat energy in tail gas is wasted, tail gas containing heat energy not only can cause greenhouse effect but also can cause secondary pollution, the slag produced after waste incineration or pyrolysing gasification directly stacks or landfill also can affect soil property polluted source.
Summary of the invention
The object of the present invention is to provide a kind of can be appropriate utilization and process domestic rubbish disposal process in all products, make full use of the heat energy of waste incineration, RDF burning electricity generation technique prepared by the rubbish of harmful gas zero-emission.
Above-mentioned purpose of the present invention is realized by following technical proposal:
RDF burning electricity generation technique prepared by a kind of rubbish, is by former domestic garbage through sorting, pulverizing and drying, is then prepared into RDF solid fuel and burns, burning gained hot gas is prepared steam by heat exchange, steam is passed into steam-driven generator and generates electricity;
Comprise following step:
1) refuse classification: sub-elect the inorganic matters (being for recycling and reuse to inorganic matter) such as the metal in former domestic garbage, glass, stone, retains the organic substance in domestic garbage;
2) garbage crushing: after sorting being removed inorganic matter, remaining organic domestic waste is put into shredder and pulverized;
3) drying garbage: the organic domestic waste after pulverizing is put into drying equipment and carry out drying process;
4) RDF is prepared: in above-mentioned dried domestic garbage, add desulfurization depickling promote that the additive of bonding makes RDF solid fuel;
5) RDF burns: RDF solid fuel is put into firing chamber and burn, obtain hot gas;
6) heat exchange: burning gained hot gas is passed into heat-exchanger rig, obtains hot steam;
7) steam electric power: hot steam is passed into steam-driven generator generating.
Further, the waste heat gas formed after step 6) hot gas is passed into heat-exchanger rig heat exchange is passed into the drying equipment in step 3), carries out drying to the organic domestic waste after pulverizing; Thus effectively and fully utilize heat energy, reduce greenhouse effect.
Further, before waste heat gas is passed into drying equipment, adjustment cooling is carried out to waste heat gas temperature is down to 150 ~ 200 DEG C (preferable temperature is down to 180 DEG C); The waste heat gas that hot gas is formed after being passed into heat-exchanger rig heat exchange is generally also in higher temperature, be directly used in drying and even can light rubbish, and rubbish itself can produce biogas, and it is very dangerous for utilizing high-temperature gas to carry out drying.
Further, the hot water produced after step 7) hot steam being passed into steam-driven generator generating is passed in the heat-exchanger rig of step 6), for heat-exchanger rig produce hot steam water source is provided, hot water more easily gasify as steam, make water, vapour replace conversion cycles utilization.
The invention has the beneficial effects as follows:
1, by categorized consumer waste process, the organic matter of not recoverable is burned, the heat energy of acquisition is generated electricity, thus turns waste into wealth, for people live creation happiness while solving refuse pollution; Utilization efficiency of heat energy is high, effectively avoids producing greenhouse effect, and generating output is large; Cleanliness without any pollution, the every the same product in garbage processing procedure can obtain rationally and utilize fully, brings many benefits while pollution abatement;
2, waste heat tail gas is used for garbage drying, and owing to pulverizing the suction-operated of rear rubbish, flue gas is substantially without discharge; Small part flue gas processes together along with refuse moisture atomization moisture, simple far beyond cooled flue gas of technique, and cost reduces greatly;
3, domestic garbage is made combustible RDF solid fuel, can burn as coal briquette, flying dust total amount reduces greatly, effectively can contain heavy metals emission, reduces the discharge amount of incineration flue gas; The inner CL element of bar (or particle) and oxygen area of contact greatly reduce, and effectively can contain the formation of dioxin; After system rod is shaping, moisture content reduces calorific value and improves, and is beneficial to and improves combustion temperature and uniformity, improve firing rate simultaneously, improve furnace temperature, and favourable dioxin decomposes more thorough;
4, RDF solid fuel calorific value is high more than former garbage organism, improve generating efficiency, due to storability and the highly dense property of RDF, be conducive to the realization of rubbish distributed terminal process, to rural area and backwoodsman waste processing practicability very strong.
Accompanying drawing explanation
Fig. 1 is present invention process flow chart.
Specific embodiment
More describe technological scheme of the present invention in detail below by embodiment, but protection domain is not limited thereto.
The drying equipment related in following embodiment can select equipment disclosed in the patent of invention of another " one way of life garbage drying equipment " by name.
The desulfurization depickling related in following embodiment promotes that the additive of bonding can use the technological scheme of the patent of invention of another " one way of life garbage derivatived fuel (RDF) shaping admixture " by name to obtain, and can be also that 3:5:5 is formulated by weight by lime, pulverized fuel ash and sawdust stalk.
The heat-exchanger rig related in following embodiment, is shown in the utility model patent of another " one way of life rubbish pyrolysis gas firing heat-exchanger rig " by name.
embodiment: rubbish of the present invention prepares RDF burning electricity generation technique according to the following steps:
1) refuse classification: sub-elect the inorganic matters such as the metal in former domestic garbage, glass, stone, the process of sorting can be that artificial selection also can be selected by machine, with human eye, artificial selection obviously can see that (inorganic matter) is for degree, some workmans are used to raise the efficiency, by the inorganic matter that sub-elects as: metal, glass etc. are for recycling and reuse, by the inorganic matter sorted out as: stone, brick etc. can be used for preparing construction timber, retain the organic substance (organic principle) in domestic garbage;
2) garbage crushing: after sorting being removed inorganic matter, remaining organic domestic waste is put into shredder and pulverized, and uses common waste disposer;
3) drying garbage: the organic domestic waste after pulverizing is put into drying equipment and carries out drying process, the foul smell produced in dried journey or moisture pass into vent gas treatment pond as Calcified pond or other treatment facility, discharge after process;
4) RDF is prepared: in above-mentioned dried domestic garbage, add desulfurization depickling promote that the additive of bonding makes RDF solid fuel, the rod-made machine announced in the patent of invention of " one way of life rubbish system rod equipment " by name can be used to make bar, the device announced in the utility model patent of " fuel particle device made by one way of life rubbish " by name also can be used to make particle;
5) RDF burns: RDF solid fuel is put into firing chamber and burn, collect gained hot gas;
6) heat exchange: burning gained hot gas is passed into heat-exchanger rig, obtains hot steam; The waste heat gas formed after hot gas can being passed into heat-exchanger rig heat exchange carries out adjustment cooling makes temperature be down between 150 ~ 200 DEG C, waste heat gas after cooling is passed into after regulating cooling the drying equipment in step 3), drying is carried out to the organic domestic waste after pulverizing; The waste heat gas that hot gas is formed after being passed into heat-exchanger rig heat exchange is generally also in higher temperature, be directly used in drying and even can light rubbish, and rubbish itself can produce biogas, it is very dangerous for utilizing high-temperature gas to carry out drying, so, first waste heat gas should be reduced to suitable temperature (becoming the dry hot gas shown in accompanying drawing) to be passed into drying equipment again and to carry out drying to rubbish, select 180 DEG C in actual applications as optimum drying temperature; Thus effectively and fully utilize heat energy, reduce greenhouse effect.
7) steam electric power: the hot steam by step 6) gained is passed into steam-driven generator generating; After generating hot steam become hot water flow out, hot water is passed in the heat-exchanger rig of step 6), for heat-exchanger rig produce hot steam water source is provided, hot water more easily gasify as steam, make water, vapour replace conversion cycles utilization.
The technical program, through the practical application in September, 2013-2014 year March, achieves generating efficiency and generated energy all improves more than 55%, dioxin decompose more thoroughly and flue gas after adsorbing, the good result of vent gas treatment cost savings more than 58%.
The foregoing is only the preferred embodiments of the present invention, be not limited to invention, although with reference to previous embodiment to invention has been detailed description, for the technician in wooden field, it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within all spirit in invention and principle, any amendment done, equivalent replacement, improvement etc., within the protection domain that all should be included in invention.
Claims (4)
1. RDF burning electricity generation technique prepared by a rubbish, it is characterized in that: RDF burning electricity generation technique prepared by described rubbish, through sorting, pulverizing and drying by former domestic garbage, then be prepared into RDF solid fuel and burn, burning gained hot gas is prepared steam by heat exchange, steam is passed into steam-driven generator and generates electricity;
Comprise following step:
1) refuse classification: sub-elect the inorganic matters (being for recycling and reuse to inorganic matter) such as the metal in former domestic garbage, glass, stone, retains the organic substance in domestic garbage;
2) garbage crushing: after sorting being removed inorganic matter, remaining organic domestic waste is put into shredder and pulverized;
3) drying garbage: the organic domestic waste after pulverizing is put into drying equipment and carry out drying process;
4) RDF is prepared: in above-mentioned dried domestic garbage, add desulfurization depickling promote that the additive of bonding makes RDF solid fuel;
5) RDF burns: RDF solid fuel is put into firing chamber and burn, obtain hot gas;
6) heat exchange: burning gained hot gas is passed into heat-exchanger rig, obtains hot steam;
7) steam electric power: hot steam is passed into steam-driven generator generating.
2. RDF burning electricity generation technique prepared by a kind of rubbish according to claim 1, it is characterized in that: the waste heat gas formed after step 6) hot gas is passed into heat-exchanger rig heat exchange is passed into the drying equipment in step 3), drying is carried out to the organic domestic waste after pulverizing.
3. RDF burning electricity generation technique prepared by a kind of rubbish according to claim 2, it is characterized in that: before waste heat gas is passed into drying equipment, carries out adjustment cooling temperature is down to 150 ~ 200 DEG C (preferable temperature is down to 180 DEG C) to waste heat gas.
4. RDF burning electricity generation technique prepared by a kind of rubbish according to any one of claim 1 ~ 3, it is characterized in that: the hot water produced after step 6) hot steam being passed into steam-driven generator generating is passed in the heat-exchanger rig of step 5), provide water source for heat-exchanger rig produces hot steam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410409660.5A CN105443171A (en) | 2014-08-20 | 2014-08-20 | Incineration power generation process adopting refuse derived fuel (RDF) prepared from refuse |
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| CN201410409660.5A CN105443171A (en) | 2014-08-20 | 2014-08-20 | Incineration power generation process adopting refuse derived fuel (RDF) prepared from refuse |
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| CN105443171A true CN105443171A (en) | 2016-03-30 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106111667A (en) * | 2016-06-29 | 2016-11-16 | 福建正仁环保有限公司 | Biomass are prepared RDF 4 smokeless and are burned steam-electric power technique |
| CN107442551A (en) * | 2017-07-27 | 2017-12-08 | 光大环保技术研究院（南京）有限公司 | Refuse disposal system and method for disposal based on plasma gasification technology |
| CN111592919A (en) * | 2020-05-29 | 2020-08-28 | 浙江华环环境有限公司 | Additive for recycling treatment of building organic waste and treatment method |
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| KR100469171B1 (en) * | 2004-01-19 | 2005-01-29 | 박경득 | Recycling method for Sewage |
| JP2005106390A (en) * | 2003-09-30 | 2005-04-21 | Tokyo Electric Power Co Inc:The | Biomass fuel supply system |
| CN1912354A (en) * | 2006-08-28 | 2007-02-14 | 杭州维华环境工程技术有限公司 | Integral process and equipment of garbage fuel synthesis and burning generation |
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2014
- 2014-08-20 CN CN201410409660.5A patent/CN105443171A/en active Pending
Patent Citations (4)
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| JP2005106390A (en) * | 2003-09-30 | 2005-04-21 | Tokyo Electric Power Co Inc:The | Biomass fuel supply system |
| KR100469171B1 (en) * | 2004-01-19 | 2005-01-29 | 박경득 | Recycling method for Sewage |
| CN1912354A (en) * | 2006-08-28 | 2007-02-14 | 杭州维华环境工程技术有限公司 | Integral process and equipment of garbage fuel synthesis and burning generation |
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Non-Patent Citations (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106111667A (en) * | 2016-06-29 | 2016-11-16 | 福建正仁环保有限公司 | Biomass are prepared RDF 4 smokeless and are burned steam-electric power technique |
| CN107442551A (en) * | 2017-07-27 | 2017-12-08 | 光大环保技术研究院（南京）有限公司 | Refuse disposal system and method for disposal based on plasma gasification technology |
| CN111592919A (en) * | 2020-05-29 | 2020-08-28 | 浙江华环环境有限公司 | Additive for recycling treatment of building organic waste and treatment method |
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Application publication date: 20160330 |