CN105351941A - Power generation technique based on pyrolyzation and gasification of household refuse and incineration of fuel gas - Google Patents
Power generation technique based on pyrolyzation and gasification of household refuse and incineration of fuel gas Download PDFInfo
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- CN105351941A CN105351941A CN201410410132.1A CN201410410132A CN105351941A CN 105351941 A CN105351941 A CN 105351941A CN 201410410132 A CN201410410132 A CN 201410410132A CN 105351941 A CN105351941 A CN 105351941A
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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 invention discloses a power generation technique based on pyrolyzation and gasification of household refuse and incineration of fuel gas. The power generation technique comprises the steps that the household refuse is sorted, pulverized and dried; then pyrolyzation and gasification are conducted on the household refuse, so that combustible gas is generated; the combustible gas is incinerated; steam is prepared from hot air obtained through incineration through heat exchange; and the steam is introduced into a steam power generator for power generation. According to the power generation technique based on pyrolyzation and gasification of the household refuse and incineration of the fuel gas, the heat energy conversion rate of pyrolyzation and gasification is higher, the power generation efficiency is greatly improved, and the cost caused by procedure increment can be counteracted by the increased economic benefits; the refuse is subjected to pyrolyzation and gasification under an oxygen-free or oxygen-deficient condition firstly after being dried instead of being directly incinerated, and thus the amount of generated dioxin is greatly reduced; the dioxin can be evenly decomposed by conducting heat-storage incineration of the generated combustible gas through secondary gas at the temperature over 850 DEG C. Tail gas is used for dying the refuse, and smoke emission hardly exists under the adsorption action of the pulverized refuse.
Description
Technical field
The present invention relates to the processing technology field of house refuse, particularly relate to one way of life refuse pyrolysis gasification burning burning electricity generation technique.
Background technology
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 pernicious gases; contaminated 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.And 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 house refuse 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.
If directly burned house refuse, a large amount of harm of dusty gas aggravation to environment can be given off.The daily household electricity of present people is mostly by thermal power generation, self-evident to the consumption of the energy.In order to solve energy problem, people have developed the multiple technical scheme and the equipment that the living beings such as stalk, leaf are carried out to pyrolytic gasification, generate fuel gas, and be widely used in that rural area replaces that crop straw burning is used for cooking, heating etc., not only increase usefulness and greatly reduce the discharge of flue gas.If can use above technology that domestic garbage pyrolysis gasification is generated fuel gas, these fuel gas are utilized to generate electricity, the process problem of house refuse can not only be solved, electric energy can also be provided for daily life, process for house refuse is brought revolutionary impact, and the problem of energy shortage can be solved to a certain extent.
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 technical 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 effects but also can cause secondary pollution, the slag produced after waste incineration or pyrolytic 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, the domestic garbage pyrolysis gasification burning burning electricity generation technique of the abundant resolving harmful gas zero-emission of dioxin.
Above-mentioned purpose of the present invention is realized by following technical proposal:
One way of life refuse pyrolysis gasification burning burning electricity generation technique, be by former house refuse through sorting, pulverizing and drying, then carry out pyrolytic gasification and generate fuel gas, incineration of combustible gas, 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 house refuse, glass, stone, retains the organic matter in house refuse;
2) garbage crushing: after sorting being removed inorganic matter, remaining organic domestic waste is put into pulverizer and pulverized;
3) drying garbage: the organic domestic waste after pulverizing is put into drying equipment and carry out drying process;
4) refuse pyrolysis gasification: dried organic domestic waste is put into pyrolysis gasification furnace, carries out pyrolytic gasification, obtain fuel gas;
5) combustion gas is burned: the gained fuel gas that gasified by domestic garbage pyrolysis passes into combustion chamber and burns, and obtains hot gas;
6) heat exchange: burning gained hot gas is passed into heat-exchanger rig, obtains vapours;
7) steam-electric power: vapours 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), utilizes the heat energy of waste heat gas to carry out drying to the organic domestic waste after pulverizing; Thus effectively and fully utilize heat energy, reduce greenhouse effects.
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) vapours being passed into steam-driven generator generating is passed in the heat-exchanger rig of step 6), and provide water source for heat-exchanger rig produces vapours, hot water more easily gasifies as steam.
The invention has the beneficial effects as follows:
1, the thermal energy conversion rate of pyrolytic gasification is higher, greatly improves generating efficiency, and the economic benefit of increase is enough to offset the cost improved because increasing operation;
2, first under anaerobic or oxygen lean conditions, carry out pyrolytic gasification instead of directly burn after drying garbage, greatly reducing the generation of dioxin; The combustible gas produced stores temperature through secondary air more than 850 degree and burns, and ensures that furnace temperature decomposes dioxin equably, avoids solid to burn because in-furnace temperature inequality causes part of fuel not reach decomposing dioxin temperature required and produce dioxin; Tail gas (waste heat gas) is for garbage drying, and owing to pulverizing the suction-operated of rear rubbish, flue gas is substantially without discharge;
3, 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.
Accompanying drawing explanation
Fig. 1 is present invention process flow chart.
Specific embodiment
More describe technical 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 pyrolysis gasification furnace related in following embodiment can select equipment disclosed in the patent of invention of another " one way of life refuse pyrolysis gasification furnace " by name or other like product.
Device disclosed in the utility model patent of another " one way of life refuse pyrolysis combustible gas high-temp combustion device " by name can be selected in the combustion chamber related in following embodiment, or other like product.
The heat-exchanger rig related in following embodiment, is shown in the utility model patent of another " one way of life refuse pyrolysis gas firing heat-exchanger rig " by name.
embodiment:domestic garbage pyrolysis gasification burning burning electricity generation technique of the present invention clicks step: 1) sub-elect the inorganic matters such as the metal in former house refuse, 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 matter (organic principle) in house refuse; 2) after inorganic matter being removed in sorting, remaining organic domestic waste is put into pulverizer and is pulverized, and uses common garbage pulverator to carry out pulverizing; 3) organic domestic waste after pulverizing is put into drying equipment and carry 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) dried organic domestic waste is put into pyrolysis gasification furnace, carry out pyrolytic gasification, obtain fuel gas; 5) the gained fuel gas that gasified by domestic garbage pyrolysis passes into combustion chamber and burns, and collects gained hot gas; 6) gained hot gas is passed into heat-exchanger rig, the water in hot gas heat exchanging device carries out heating Heat of Formation steam; 7) vapours by step 6) gained is passed into steam-driven generator to generate electricity.
In the above-described embodiment, in step 4), house refuse generates fuel gas after pyrolytic gasification, and form slag (residue) at furnace bottom, the stone sub-elected in slag and step 1), brick etc. are used for making construction material, and particularly slag (residue) is the desirable material firing fragment of brick.The waste heat gas formed after hot gas in step 6) is passed into heat-exchanger rig heat exchange (becoming the dry hot gas shown in accompanying drawing) after adjustment cooling reaches safe temperature range is passed into the drying equipment in step 3), the heat energy of waste heat gas is utilized to carry out drying to the organic domestic waste after pulverizing, thus effectively and fully utilize heat energy, reduce heat dissipation to the destruction of environment.Adjustment for waste heat gas is lowered the temperature, and being generally reduced to 150 ~ 200 DEG C and can being passed into drying equipment and carrying out drying to house refuse, for taking into account the safe, efficient of production, selecting 180 DEG C of temperature as optimum drying hot gas.After vapours in step 7) being passed into steam-driven generator generating, vapours becomes hot water after losing temperature, hot water is passed into above-mentioned steps 6) in heat-exchanger rig in, water source is provided for heat-exchanger rig produces vapours, hot water more easily gasifies as steam, also further increases the utilization ratio of energy.
Technical scheme in the present embodiment, in the practical application in February ,-2014 in August, 2013, achieves generating efficiency and generated energy all improves more than 57%, dioxin decompose more thoroughly and flue gas after adsorbing, the good result of vent gas treatment cost savings more than 60%.
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 technical staff in wooden field, it still can be modified to the technical 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. one way of life refuse pyrolysis gasification burning burning electricity generation technique, it is characterized in that: described domestic garbage pyrolysis gasification burning burning electricity generation technique, through sorting, pulverizing and drying by former house refuse, then carry out pyrolytic gasification and generate fuel gas, incineration of combustible gas, 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 house refuse, glass, stone, retains the organic matter in house refuse;
2) garbage crushing: after sorting being removed inorganic matter, remaining organic domestic waste is put into pulverizer and pulverized;
3) drying garbage: the organic domestic waste after pulverizing is put into drying equipment and carry out drying process;
4) refuse pyrolysis gasification: dried organic domestic waste is put into pyrolysis gasification furnace, carries out pyrolytic gasification, obtain fuel gas;
5) combustion gas is burned: fuel gas is passed into combustion chamber and burn, obtain hot gas;
6) heat exchange: burning gained hot gas is passed into heat-exchanger rig, obtains vapours;
7) steam-electric power: vapours is passed into steam-driven generator generating.
2. domestic garbage pyrolysis gasification burning burning electricity generation technique 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. domestic garbage pyrolysis gasification burning burning electricity generation technique according to claim 2, 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. the domestic garbage pyrolysis gasification burning burning electricity generation technique according to any one of claim 1 ~ 3, it is characterized in that: the hot water produced after step 7) vapours being passed into steam-driven generator generating is passed in the heat-exchanger rig of step 6), provide water source for heat-exchanger rig produces vapours.
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| CN201410410132.1A CN105351941A (en) | 2014-08-20 | 2014-08-20 | Power generation technique based on pyrolyzation and gasification of household refuse and incineration of fuel gas |
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| CN201410410132.1A CN105351941A (en) | 2014-08-20 | 2014-08-20 | Power generation technique based on pyrolyzation and gasification of household refuse and incineration of fuel gas |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106765139A (en) * | 2017-01-23 | 2017-05-31 | 广西威荣环保科技有限公司 | House refuse direct gasification melting incinerating tower |
| CN106958820A (en) * | 2017-03-23 | 2017-07-18 | 李学良 | A kind of solid combustible reclaims power generation and heat supply system |
| CN107838172A (en) * | 2017-10-30 | 2018-03-27 | 成都新柯力化工科技有限公司 | A kind of method that laser pyrolysis domestic garbage burning generates electricity |
| CN108246779A (en) * | 2018-03-09 | 2018-07-06 | 宁夏黑金科技有限公司 | A kind of circulation comprehensive of rubbish utilizes method |
| CN109357261A (en) * | 2018-12-18 | 2019-02-19 | 上海玖矢企业管理有限公司 | A kind of organic matter fixed-end forces equipment |
| CN110142281A (en) * | 2019-05-29 | 2019-08-20 | 北京天耀华夏环保科技有限公司 | Domestic garbage comprehensive ecological treatment method |
| CN110895097A (en) * | 2019-12-03 | 2020-03-20 | 中城绿建科技有限公司 | Method for controlling and drying garbage by using pyrolysis combustible gas combustion or waste heat of generator set |
| CN111678139A (en) * | 2020-06-22 | 2020-09-18 | 赵莉莉 | Harmless treatment method and system for household garbage |
| WO2021031814A1 (en) * | 2019-08-19 | 2021-02-25 | 中南大学 | Pre-dechlorination-sintering treatment process for high-chlorine metallurgical waste and incineration fly ash |
| CN113175674A (en) * | 2021-04-01 | 2021-07-27 | 安徽中泰创展环境科技有限公司 | Domestic waste pyrolysis oven and energy recuperation device |
| CN113464958A (en) * | 2021-06-23 | 2021-10-01 | 甘肃振毓新能源科技发展有限公司 | Domestic waste incineration equipment |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106765139A (en) * | 2017-01-23 | 2017-05-31 | 广西威荣环保科技有限公司 | House refuse direct gasification melting incinerating tower |
| CN106958820A (en) * | 2017-03-23 | 2017-07-18 | 李学良 | A kind of solid combustible reclaims power generation and heat supply system |
| CN107838172A (en) * | 2017-10-30 | 2018-03-27 | 成都新柯力化工科技有限公司 | A kind of method that laser pyrolysis domestic garbage burning generates electricity |
| CN108246779A (en) * | 2018-03-09 | 2018-07-06 | 宁夏黑金科技有限公司 | A kind of circulation comprehensive of rubbish utilizes method |
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| WO2021031814A1 (en) * | 2019-08-19 | 2021-02-25 | 中南大学 | Pre-dechlorination-sintering treatment process for high-chlorine metallurgical waste and incineration fly ash |
| JP2022508878A (en) * | 2019-08-19 | 2022-01-19 | 中南大学 | Pre-chlorination-sintering process for high chlorine metallurgical waste and incinerator fly ash |
| JP7204156B2 (en) | 2019-08-19 | 2023-01-16 | 中南大学 | Pre-dechlorination and sintering process for highly chlorinated metallurgical waste and incineration fly ash |
| CN110895097A (en) * | 2019-12-03 | 2020-03-20 | 中城绿建科技有限公司 | Method for controlling and drying garbage by using pyrolysis combustible gas combustion or waste heat of generator set |
| CN111678139A (en) * | 2020-06-22 | 2020-09-18 | 赵莉莉 | Harmless treatment method and system for household garbage |
| CN111678139B (en) * | 2020-06-22 | 2022-12-02 | 赵莉莉 | Harmless treatment method and system for household garbage |
| CN113175674A (en) * | 2021-04-01 | 2021-07-27 | 安徽中泰创展环境科技有限公司 | Domestic waste pyrolysis oven and energy recuperation device |
| CN113464958A (en) * | 2021-06-23 | 2021-10-01 | 甘肃振毓新能源科技发展有限公司 | Domestic waste incineration equipment |
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Application publication date: 20160224 |