WO2007093117A1 - Procédé de génération d'électricité par incinération de déchets urbains - Google Patents

Procédé de génération d'électricité par incinération de déchets urbains Download PDF

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Publication number
WO2007093117A1
WO2007093117A1 PCT/CN2007/000450 CN2007000450W WO2007093117A1 WO 2007093117 A1 WO2007093117 A1 WO 2007093117A1 CN 2007000450 W CN2007000450 W CN 2007000450W WO 2007093117 A1 WO2007093117 A1 WO 2007093117A1
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WO
WIPO (PCT)
Prior art keywords
garbage
waste
power generation
generation process
combustion chamber
Prior art date
Application number
PCT/CN2007/000450
Other languages
English (en)
Chinese (zh)
Inventor
Anping Wang
Original Assignee
Shen Zhen A-Mart Industrial Co., Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shen Zhen A-Mart Industrial Co., Ltd filed Critical Shen Zhen A-Mart Industrial Co., Ltd
Publication of WO2007093117A1 publication Critical patent/WO2007093117A1/fr

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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
    • F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • 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

Definitions

  • the invention belongs to a garbage treatment in the field of environmental protection technology, in particular to an urban living garbage incineration power generation process.
  • the pathogens in the garbage are completely eliminated, and the harmful gases and soot generated during the combustion process are treated to meet the discharge requirements, and the degree of harmlessness is high.
  • the weight can be reduced by 80%, and the volume can be reduced by more than 90%. The effect of reduction is good, and a large amount of land is saved. 3. Exhaust gas and heat energy can be fully recovered and utilized.
  • the process of waste incineration power generation in the prior art is that the garbage receiving-waste storage-incinerator feeds one (adding coal or heavy oil, etc.) incinerator to incinerate a steam boiler and a steam power generation.
  • the average waste electric energy heat recovery rate is 5% to 8%, the highest is 10%, the garbage reduction rate is 60% to 80%, and the second oral emission concentration is not up to standard; the slag has a combustible content of 10 %, the slag thermal burning rate is 5%, limited by the garbage moisture and calorific value.
  • the addition amount is as high as 15% ⁇ 30%, which greatly increases the treatment cost.
  • the floating matter and heavy metal in the exhaust gas are relatively embarrassing and do not meet the standard discharge for a long time.
  • Garbage incinerator treatment operating costs up to 60 ⁇ 90 yuan
  • the waste incineration power generation system is generally in operation. 1. Due to the high moisture content of domestic waste and low calorific value, a large amount of combustion-supporting substances and thermal energy supplements need to be added.
  • the object of the present invention is to provide an improvement in the operation quality of the incinerator, an increase in the utilization rate of heat energy and the output of electric energy, a small pollution of the exhaust gas, a treatment cost, and a low operating cost of the garbage incinerator.
  • Urban Domestic Waste Incineration Power Generation The technical solution adopted by the present invention to achieve its object of the invention is:
  • Urban Domestic Waste Incineration Power Generation Process which uses the following steps:
  • the sorted and crushed garbage shall be effectively evaporated and leached in a ventilated storage leaching tank;
  • Sorting and crushing the incinerated garbage so that the separation rate of recoverable hard materials such as metal is more than 80%, the brokenness is less than 80 blue, the bagging garbage bag is broken and the bag breaking rate is 95%, and the discharging block is 80 ⁇ .
  • the waste is evaporated.
  • the garbage is mixed under oxygenation and mixed thoroughly to ensure that the difference in the calorific value of the waste material is 20%, and the moisture in the waste is reduced to 38%.
  • Extrusion granulated garbage granular shape cylindrical, diameter 20 ⁇ 35 legs, length 40 ⁇ : L00 wake up. After the granulation treatment, the waste fuel is dried by the waste heat boiler exhaust gas, and the granulated waste is dried to 25% of the moisture.
  • the first combustion chamber is under negative pressure controlled oxygen: temperature 900 ⁇ : L000 °C, furnace chamber oxygen concentration 5%, second combustion chamber: temperature 1200 ⁇ 1500 furnace hall Oxygen concentration: 10% ; reflux flue gas temperature 1200 ⁇ 1500 °C, third combustion chamber: combustion center temperature 2100 ⁇ 2500 V, furnace oxygen concentration: 15%, while using the high pressure fan to propel the first combustion chamber
  • the combustible gas is sent to the third combustion chamber through the second combustion chamber.
  • the beneficial effects achieved by the invention are:
  • the atmospheric effluent of the garbage particle fuel incinerator is far lower than the existing air pollution standards of all Europe, the United States and the CIS, and fully complies with the Kyoto Protocol, the garbage disposal cost is low, and the waste heat
  • the boiler recovers waste heat from the incinerator tail gas; in addition to producing superheated steam that meets the needs of the steam turbine, the waste heat boiler tail gas is sent back to the pellet fuel production process for drying the fuel to improve energy utilization.
  • the present invention adopts the following process steps:
  • Sorting and crushing the incinerated garbage sorting out the recyclable hard materials such as metal in the garbage, crushing the garbage after sorting, effectively dividing and crushing the garbage, and designing large-sized sorting and integration respectively
  • the method of combining broken bag, sorting, crushing mechanical processing, and manual auxiliary sorting is carried out, and the incineration garbage is sorted and crushed, so that the separation rate of recoverable hard materials such as metal is more than 80%, broken to block degree. Less than 80mm, the bagged garbage bag has a tear-breaking bag rate of 95%, and the discharge block is 80 legs.
  • the granular shape is cylindrical, and the diameter is 20 to 35 s, and the length is 40 to 100 mm.
  • the granulated garbage is subjected to drying treatment, and the blasting treatment is carried out by using the exhaust gas of the waste heat boiler and the pelletized fuel of about 30% of the water to be dried at a temperature of 150 ⁇ . After the garbage is dried, it is treated to 25% of water. Ensure that the incinerator feeds 25% moisture and the fuel calorific value is 2100Kcal/kg;
  • the granular waste after the above treatment is incinerated in a three-stage pyrolysis gasification incinerator, and the first combustion chamber is under negative pressure controlled oxygen when incinerated in a three-stage pyrolysis gasification incinerator: temperature 900 ⁇ 1000 °C, furnace chamber oxygen concentration 5%, second combustion chamber: temperature 1200 ⁇ 1500 °C, furnace oxygen concentration: ⁇ 10%; reflux flue gas temperature 1200 ⁇ 1500 °C, third combustion chamber: spray
  • the combustion center temperature is 2100 to 2500 ° C, and the furnace oxygen concentration is 15%.
  • the high-pressure fan is used to advance the combustible gas that vaporizes the first combustion chamber to the third combustion chamber through the second combustion chamber.
  • the reflux flue gas volume is first adjusted according to the oxygen concentration to reach the temperature index; when the oxygen concentration is lower than the design requirement, the fuel feed amount is adjusted to ensure that the system works normally according to the above technical parameters.
  • the main emission technical index parameters of the incinerator according to the present invention are as follows.
  • Incinerator slag thermal burning rate 5% ⁇ 10% 0. 3% or less
  • Waste-to-energy costs 90-120 yuan / ton of garbage 40-60 yuan / ton of garbage

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Incineration Of Waste (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

La présente invention se rapporte à un procédé de génération d'électricité par incinération de déchets urbains comprenant les étapes suivantes consistant, dans un premier temps, à trier et à broyer les déchets puis à évaporer et à assécher les déchets broyés et, dans un deuxième temps, à broyer finement les déchets ainsi obtenus puis à comprimer et à granuler les déchets fins après ajout d'un agent auxiliaire, à faire sécher les déchets après compression et granulation, à brûler les déchets granulaires dans un four de pyrolyse et de gazéification à trois étages et à récupérer la chaleur des déchets du gaz de combustion émis par le four pour générer une vapeur surchauffée pour un générateur à moteur à vapeur.
PCT/CN2007/000450 2006-02-16 2007-02-09 Procédé de génération d'électricité par incinération de déchets urbains WO2007093117A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200610012420A CN1844744B (zh) 2006-02-16 2006-02-16 一种城市生活垃圾焚烧发电工艺
CN200610012420.7 2006-02-16

Publications (1)

Publication Number Publication Date
WO2007093117A1 true WO2007093117A1 (fr) 2007-08-23

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PCT/CN2007/000450 WO2007093117A1 (fr) 2006-02-16 2007-02-09 Procédé de génération d'électricité par incinération de déchets urbains

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CN (1) CN1844744B (fr)
WO (1) WO2007093117A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107120654A (zh) * 2017-05-27 2017-09-01 福建长生环保有限公司 一种清洁卫生的垃圾处理方法
CN107219327A (zh) * 2017-06-01 2017-09-29 深圳市能源环保有限公司 一种生活垃圾焚烧炉渣热灼减率的检验方法
CN110899292A (zh) * 2018-09-14 2020-03-24 南京凯盛开能环保能源有限公司 一种垃圾发电协同处理餐厨垃圾系统及方法

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Publication number Priority date Publication date Assignee Title
CN101618392B (zh) * 2009-03-02 2012-11-14 深圳市埃玛特实业有限公司 垃圾分选及热解处理的综合利用工艺方法
CN102310073B (zh) * 2011-02-28 2016-05-11 吴英杰 生活垃圾循环处理法
CN102679365A (zh) * 2012-05-22 2012-09-19 天津大学 一种将城市垃圾转化为能源的综合处理系统
CN103954343B (zh) * 2014-05-13 2016-05-18 国家电网公司 一种垃圾发电燃料平衡的测试方法
CN105444177A (zh) * 2014-08-19 2016-03-30 福建正仁环保有限公司 一种垃圾分选干燥焚烧发电工艺
CN105351941A (zh) * 2014-08-20 2016-02-24 福建正仁环保有限公司 一种生活垃圾热解气化燃气焚烧发电工艺

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US3670669A (en) * 1970-12-16 1972-06-20 John G Hoad & Associates Process for disposal of combustible waste
JPS58217110A (ja) * 1982-06-11 1983-12-17 Kyowa Kako Kk 有機廃棄物の自燃焼却処理方法
JPH08332469A (ja) * 1995-06-08 1996-12-17 Plando Kenkyusho:Kk サーマルサイクル・環境保全型複合システムによる小型都市ごみ処理設備
CN1196463A (zh) * 1998-05-05 1998-10-21 韩连恩 城市垃圾的气化方法及垃圾气化炉
JP2000080387A (ja) * 1998-09-04 2000-03-21 Ishikawajima Harima Heavy Ind Co Ltd ごみ固形燃料の製造方法

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CN1329950A (zh) * 2001-08-06 2002-01-09 北京华联达环保能源技术开发有限责任公司 城市生活垃圾的综合利用方法
CN1186252C (zh) * 2002-01-28 2005-01-26 韩璋鑫 城市垃圾生产活性炭的方法及碳化炉

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US3670669A (en) * 1970-12-16 1972-06-20 John G Hoad & Associates Process for disposal of combustible waste
JPS58217110A (ja) * 1982-06-11 1983-12-17 Kyowa Kako Kk 有機廃棄物の自燃焼却処理方法
JPH08332469A (ja) * 1995-06-08 1996-12-17 Plando Kenkyusho:Kk サーマルサイクル・環境保全型複合システムによる小型都市ごみ処理設備
CN1196463A (zh) * 1998-05-05 1998-10-21 韩连恩 城市垃圾的气化方法及垃圾气化炉
JP2000080387A (ja) * 1998-09-04 2000-03-21 Ishikawajima Harima Heavy Ind Co Ltd ごみ固形燃料の製造方法

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107120654A (zh) * 2017-05-27 2017-09-01 福建长生环保有限公司 一种清洁卫生的垃圾处理方法
CN107120654B (zh) * 2017-05-27 2023-08-01 厦门市高科禹翔科技有限公司 一种清洁卫生的垃圾处理方法
CN107219327A (zh) * 2017-06-01 2017-09-29 深圳市能源环保有限公司 一种生活垃圾焚烧炉渣热灼减率的检验方法
CN107219327B (zh) * 2017-06-01 2023-05-30 深圳能源环保股份有限公司 一种生活垃圾焚烧炉渣热灼减率的检验方法
CN110899292A (zh) * 2018-09-14 2020-03-24 南京凯盛开能环保能源有限公司 一种垃圾发电协同处理餐厨垃圾系统及方法

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CN1844744A (zh) 2006-10-11
CN1844744B (zh) 2010-05-12

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