CN101367002B - Thermal decomposition treatment method for organic castoff - Google Patents
Thermal decomposition treatment method for organic castoff Download PDFInfo
- Publication number
- CN101367002B CN101367002B CN2008101211362A CN200810121136A CN101367002B CN 101367002 B CN101367002 B CN 101367002B CN 2008101211362 A CN2008101211362 A CN 2008101211362A CN 200810121136 A CN200810121136 A CN 200810121136A CN 101367002 B CN101367002 B CN 101367002B
- Authority
- CN
- China
- Prior art keywords
- pyrolysis
- section
- organic waste
- pyrolytic
- hot
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
Landscapes
- Processing Of Solid Wastes (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention relates to an organic waste pyrolytic treatment method. In the prior art, the energy consumption is high; the cost is large; and the service life of equipment is short. The organic waste pyrolytic treatment method adopts the pyrolytic treatment technique of combination of a pre-pyrolysis section and a secondary pyrolytic section to reutilize heating flue gas exhausted by the pyrolytic section for heating the pre-pyrolysis section according to a two-stage mechanism of pyrolysis. The method comprises the following steps: firstly, organic waste for pyrolysis is crushed according to the feeding demand; secondly, the crushed organic waste for pyrolysis is sent into a pre-pyrolysis device for drying and primary degradation; and thirdly, pre-pyrolysis products are sent into a pyrolytic device for pyrolysis, and oil products, fuel gas and carbon residue generated by the reaction are respectively exhausted. The pyrolytic device is heated through a hot-blast stove and tail gas exhausted by the hot-blast stove is sent into a hot-blast jacket of the pre-pyrolysis section for heating the pre-pyrolysis section section. The organic waste pyrolytic treatment method fully utilizes the caloric content of the flue gas, has obvious energy-saving effect, saves the consumption of high-quality steels and improves the service life of the pyrolytic device.
Description
Technical field
The invention belongs to the organic matter processing technology field, method relates to a kind of method for organic waste disposal, relates in particular to the energy-conservation pyrolysis treating method of a kind of organic waste.
Background technology
The disposal of organic waste should be with resource, minimizing, the harmless principle that turns to.In current Green GDP sustainable growth, advocate under the social environment of economy and environment harmonious development, organic waste is carried out comprehensive resource handles imperatively, energy-saving and emission-reduction obtain attention day by day in China.The kind of organic waste is a lot, as plastics, rubber, bamboo wood, fabric, mud, stalk, domestic waste, greasy filth, waste oil, organic liquid waste etc.,, just utilized its heat energy simply if directly burn, energy utilizes form single, and can cause serious problems such as secondary pollution.And adopt pyrolytic process to handle to organic waste, secondary pollution is low, and can produce high grade product such as oil product, carbon slag and combustion gas, is subjected to the generally favor of industry at present.But thermal decomposition of organic wastes needs higher reaction temperature, otherwise pyrolysis is incomplete, and is bigger to the influence of product.The present pyrolytic process that generally adopts, often adopt the heat exchange of high-temperature flue gas indirect type, difference according to raw material, heating flue-gas temperature scope is about 400～1000 ℃, and the flue-gas temperature that effluxes is also higher, 300～800 ℃ of scopes, the discharged gas fume energy is not made full use of with regard to discharger by pyrolysis installation, make that the energy consumption of pyrolysis installation is huge, energy utilization efficiency is low, has greatly hindered the popularization of pyrolytic technique; On the other hand,, make apparatus cost high, further hindered the popularization of pyrolytic technique because pyrolysis installation need bear high temperature and material is had specific (special) requirements.
The pyrolysis of organic waste in pyrolysis installation needs two courses of experience: pre-pyrolysis (comprise preheating, drying, deviate from the little molecule volatilization reaction that grades), pyrolytic reaction.The pre-pyrolysis stroke of cold material in pyrolysis installation occupied the space and the time of staying of pyrolysis installation preciousness.From energy-conservation angle, urgent need is developed the method that heating in the pyrolytic process can be used in once more the pre-pyrolysis of cold material with the discharged gas fume energy, can make full use of the flue gas heat content, reach the purpose that reduces processing cost, can save the consumption of the required high-quality steel of pyrolysis installation on the other hand, reach the purpose that reduces system cost.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, provide a kind of material adaptability organic waste strong, that treatment effect good, secondary pollution is few energy-conservation pyrolysis treating method, organic waste is produced high-grade products such as fuel oil, combustion gas, carbon slag through pyrolytic process.
The present invention adopts the pyrolysis processing technology of pre-pyrolysis section and pyrolysis section secondary combination according to two sections mechanism of pyrolysis, the heating flue gas of pyrolysis section discharging is used in once more the heating of pre-pyrolysis section.
The inventive method may further comprise the steps:
1, pyrolysis is carried out break process with organic waste according to the charging needs.
2, the pyrolysis after the break process is sent into pre-pyrolysis device with organic waste, and under the normal pressure, pre-pyrolysis reaction temperature is 100～400 ℃, and the pre-pyrolysis time is 0.1～1 hour, carries out drying and preliminary degraded after organic waste is heated; Described pre-pyrolysis device is a kind of in external-heat piston push rod machine, scraper plate machine, the conveying worm; Pre-pyrolysis device heats by the hot blast chuck, and the heating flue gas in the hot blast chuck comes from the tail gas of the hot-blast stove in the pyrolysis installation, and the waste gas (being the tail gas of hot blast chuck) that pre-pyrolysis produces is discharged by exhaust pipe.
3, pre-thermal decomposition product is sent into pyrolysis installation and is carried out pyrolysis, and under the normal pressure, pyrolysis reaction temperature is 300～700 ℃, and pyrolysis time is 0.1～1 hour, and oil product, combustion gas and carbon slag that reaction produces are discharged respectively; Described pyrolysis installation is a kind of in fixed-bed pyrolysis stove, moving bed pyrolysis stove, the revolution pyrolysis oven; Pyrolysis installation heats by hot-blast stove, and the hot-blast stove discharge tail gas is delivered to the hot blast chuck of pre-pyrolysis section, and pre-pyrolysis device is heated.
Energy-saving effect of the present invention is remarkable, and apparatus cost is relatively reasonable, has improved the benefit of reclaiming organic waste integrated treatment, compared with prior art has the following advantages:
1, according to two sections mechanism of pyrolysis, adopt the pyrolysis processing technology of pre-pyrolysis and pyrolysis secondary combination, reduced the volume of high temperature pyrolysis section, saved the consumption of high-quality steel, and the material of the low-temperature prewarming section of separating is more or less freely according to the temperature type selecting, and this technology cost is relatively reasonable.
2, pretreatment section heating flue gas is from the discharging flue gas of the heating furnace of pyrolysis section, made full use of the flue gas heat content, the pyrolysis energy consumption of unit organic waste greatly reduces, and has saved fuel consumptions such as valuable combustion gas, fuel oil and fire coal, makes that energy-saving effect of the present invention is remarkable.
3, according to the difference of the component of organic waste, thermal decomposition product may produce and contain hydrogen chloride, harmful constituent such as hydrogen fluoride, hydrogen sulfide, the waste gas that the secondary composite set can produce pretreatment section is preferably in time discharged from outlet port, avoided of the influence of such gas, the service life of having improved pyrolysis installation to follow-up pyrolysis section.
4, the screening function of pyrolysis installation end can be convenient to the later use of carbon slag, has also avoided the strip and block effluent to the stifled phenomenon of the card of drawing mechanism, and being greatly improved a running time in year of device also alleviated the requirement to the raw material sorting.
5, the length of high temperature section pyrolysis installation has been shortened in the use of the secondary group technology of pre-pyrolysis section and pyrolysis section, has alleviated the influence of expanding with heat and contract with cold, and is convenient to promote and realize the sealing effectiveness of pyrolysis installation.
6, flue gas heat energy is realized the secondary cascade utilization, makes the exhaust temperature of heating flue gas rationally reduce, and has alleviated follow-up flue gas processing cost.
The specific embodiment
Below specify the present invention by three embodiment.
Embodiment one:
Pyrolysis such as scrap rubber, plastics are carried out fragmentation with organic waste 50t/d, send into the feed arrangement charge door with organic waste through broken pyrolysis.Feed arrangement adopts the piston push rod machine.
Pyrolysis is sent into pre-pyrolysis device with organic waste through the piston push rod machine.Pre-pyrolysis device adopts the external-heat conveying worm of band hot blast chuck, with organic waste while carrying and the flue gas in the hot blast chuck carry out the indirect type heat exchange.Under the normal pressure, the pre-pyrolysis time is 1 hour, and pre-pyrolysis section reaction temperature is controlled at 200 ℃.After being heated, organic waste carries out pre-pyrolysis reactions such as drying, preliminary degraded.The waste gas that pre-pyrolysis process produces is discharged by several outlet ports that pre-pyrolysis section external-heat conveying worm top is provided with.
Pre-thermal decomposition product enters pyrolysis section by the material outlet of pre-pyrolysis section external-heat helical feed drive end unit.Pyrolysis section adopts the revolution pyrolysis oven.Under the normal pressure, pyrolysis time is 1 hour, and the pyrolysis section reaction temperature is controlled at 500 ℃.High-temperature flue gas in the hot-blast stove carries out indirect to the revolution pyrolysis oven, and pre-thermal decomposition product is finished pyrolytic reaction in the revolution pyrolysis oven, obtain high-grade products such as oil product, carbon slag and combustion gas.
The hot-blast stove discharge tail gas is delivered to the hot blast chuck of pre-pyrolysis section, and pre-pyrolysis device is heated.
Oil product and combustion gas are discharged from the gas mixture outlet of revolution pyrolysis oven with the form of gaseous mixture, enter follow-up Oil-gas Separation workshop section.The carbon slag that pyrolytic reaction obtains is discharged from revolving cylinder afterbody below slag-drip opening.
Embodiment two:
Pyrolysis such as mud, greasy filth are sent into the feed arrangement charge door with organic waste 100t/d.Feed arrangement adopts conveying worm.
Pyrolysis is sent into pre-pyrolysis device with organic waste through conveying worm.Pre-pyrolysis section apparatus adopts the scraper plate machine of band hot blast chuck, with organic waste while carrying and the flue gas in the hot blast chuck carry out the indirect type heat exchange.Under the normal pressure, the pre-pyrolysis time is 0.5 hour, and pre-pyrolysis section reaction temperature is controlled at 100 ℃.After being heated, organic waste carries out pre-pyrolysis reactions such as drying, preliminary decomposition.The waste gas that pre-pyrolysis process produces is discharged by several outlet ports that scraper plate machine top is provided with.
Pre-thermal decomposition product enters pyrolysis section by the material outlet of pre-pyrolysis section scraper plate drive end unit.Pyrolysis section adopts the moving bed pyrolysis stove.Under the normal pressure, pyrolysis time is 0.5 hour, and the pyrolysis section reaction temperature is controlled at 300 ℃.High-temperature flue gas in the hot-blast stove carries out indirect to the moving bed pyrolysis stove, and pre-thermal decomposition product is finished pyrolytic reaction in the moving bed pyrolysis stove, obtain high-grade products such as oil product, carbon slag and combustion gas.
The hot-blast stove discharge tail gas is delivered to the hot blast chuck of pre-pyrolysis section, and pre-pyrolysis device is heated.
Oil product and combustion gas are discharged from the gas mixture outlet of pyrolysis section moving bed pyrolysis furnace roof portion with the form of gaseous mixture, enter follow-up Oil-gas Separation workshop section.The carbon slag that reaction obtains is discharged from the slag-drip opening of pyrolysis section moving bed pyrolysis furnace bottom.
Embodiment three:
House refuse 200t/d is carried out the sorting fragmentation, send into the feed arrangement charge door through the organic domestic waste of sorting fragmentation.Feed arrangement adopts the scraper plate machine.
Pyrolysis is sent into pre-pyrolysis device with organic waste through the scraper plate machine.Pre-pyrolysis section apparatus adopts the external-heat piston push rod machine of band hot blast chuck, with organic domestic waste while carrying and the flue gas in the hot blast chuck carry out the indirect type heat exchange.Under the normal pressure, the pre-pyrolysis time is 0.1 hour, and pre-pyrolysis section reaction temperature is controlled at 400 ℃.After being heated, organic waste carries out pre-pyrolysis reactions such as drying, preliminary degraded.The waste gas that pre-pyrolysis process produces is discharged by several outlet ports that pre-pyrolysis section external-heat piston push rod machine top is provided with.
Pre-thermal decomposition product enters pyrolysis section by the material outlet of pre-pyrolysis section external-heat piston push rod drive end unit.Pyrolysis section adopts the fixed-bed pyrolysis stove.Under the normal pressure, pyrolysis time is 0.1 hour, and the pyrolysis section reaction temperature is controlled at 700 ℃.High-temperature flue gas in the hot-blast stove carries out indirect to the fixed-bed pyrolysis stove, and pre-thermal decomposition product is finished pyrolytic reaction in the fixed-bed pyrolysis stove, obtain high-grade products such as oil product, carbon slag and combustion gas.
The hot-blast stove discharge tail gas is delivered to the hot blast chuck of pre-pyrolysis section, and pre-pyrolysis device is heated.
Oil product and combustion gas are discharged from the gas mixture outlet of pyrolysis section fixed-bed pyrolysis stove with the form of gaseous mixture, enter follow-up Oil-gas Separation workshop section.The carbon slag that pyrolytic reaction obtains is discharged from fixed-bed pyrolysis stove afterbody below slag-drip opening.
Claims (1)
1. thermal decomposition treatment method for organic castoff is characterized in that this method adopts the pyrolysis processing technology of pre-pyrolysis section and the combination of pyrolysis section secondary, and the heating flue gas of pyrolysis section discharging is used in the heating of pre-pyrolysis section once more, and concrete steps are:
(1) pyrolysis is carried out break process with organic waste according to the charging needs;
(2) pyrolysis after the break process is sent into pre-pyrolysis device with organic waste, and under the normal pressure, pre-pyrolysis reaction temperature is 100～400 ℃, and the pre-pyrolysis time is 0.1～1 hour, carries out drying and preliminary degraded after organic waste is heated; Described pre-pyrolysis device is a kind of in external-heat piston push rod machine, scraper plate machine, the conveying worm; Pre-pyrolysis device heats by the hot blast chuck, and the heating flue gas in the hot blast chuck comes from the tail gas of the hot-blast stove in the pyrolysis installation;
(3) pre-thermal decomposition product is sent into pyrolysis installation and is carried out pyrolysis, and under the normal pressure, pyrolysis reaction temperature is 300～700 ℃, and pyrolysis time is 0.1～1 hour, and oil product, combustion gas and carbon slag that reaction produces are discharged respectively; Described pyrolysis installation is a kind of in fixed-bed pyrolysis stove, moving bed pyrolysis stove, the revolution pyrolysis oven; Pyrolysis installation heats by hot-blast stove, and the hot-blast stove discharge tail gas is delivered to the hot blast chuck of pre-pyrolysis section, and pre-pyrolysis device is heated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101211362A CN101367002B (en) | 2008-09-28 | 2008-09-28 | Thermal decomposition treatment method for organic castoff |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101211362A CN101367002B (en) | 2008-09-28 | 2008-09-28 | Thermal decomposition treatment method for organic castoff |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101367002A CN101367002A (en) | 2009-02-18 |
| CN101367002B true CN101367002B (en) | 2010-12-08 |
Family
ID=40411090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101211362A Expired - Fee Related CN101367002B (en) | 2008-09-28 | 2008-09-28 | Thermal decomposition treatment method for organic castoff |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101367002B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102517053A (en) * | 2011-11-30 | 2012-06-27 | 河北科技大学 | Method for rapidly pyrolyzing waste mycelium |
| CN103031136A (en) * | 2012-12-27 | 2013-04-10 | 北京林业大学 | Pyrolysis poly-generation comprehensive utilization method for waste artificial board |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2232918Y (en) * | 1995-03-10 | 1996-08-14 | 中国建筑材料科学研究院 | Reheating and separating unit for rotary cement kiln |
| CN2511878Y (en) * | 2001-11-05 | 2002-09-18 | 田原宇 | Continuous-operation pyrolytic apparatus for solid organics |
| CN101101120A (en) * | 2007-07-27 | 2008-01-09 | 福建省丰泉环保设备有限公司 | Double-loop double-pyrogenation incinerator for garbage harmless treatment and its usage method |
-
2008
- 2008-09-28 CN CN2008101211362A patent/CN101367002B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2232918Y (en) * | 1995-03-10 | 1996-08-14 | 中国建筑材料科学研究院 | Reheating and separating unit for rotary cement kiln |
| CN2511878Y (en) * | 2001-11-05 | 2002-09-18 | 田原宇 | Continuous-operation pyrolytic apparatus for solid organics |
| CN101101120A (en) * | 2007-07-27 | 2008-01-09 | 福建省丰泉环保设备有限公司 | Double-loop double-pyrogenation incinerator for garbage harmless treatment and its usage method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101367002A (en) | 2009-02-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201277557Y (en) | Thermal decomposition apparatus for organic waste | |
| CN103693839B (en) | Method for sludge treatment and treatment system thereof | |
| CN103008331B (en) | The recycling processing method of one way of life rubbish and biochemical sludge | |
| CN104787762A (en) | Method and system for producing activated carbon through pyrolysis of water-bearing organic matter | |
| CN105737163B (en) | Household garbage low-temperature pyrolysis system and method based on decoupling combustion | |
| CN103111455B (en) | Environment-friendly comprehensive treatment method for household garbage and waste oil and fat | |
| CN104087340A (en) | Waste pyrolysis system with adjustable oil, gas and carbon and method | |
| WO2022067882A1 (en) | System and process of industrial continuous cracking of mixed waste plastics according to class | |
| CN103756697A (en) | Method and system for processing waste and sludge | |
| CN215975660U (en) | Rotary kiln pyrolysis system | |
| CN112961695A (en) | Solid waste anaerobic pyrolysis and high-temperature melting treatment process and system | |
| CN104629779A (en) | Process for producing synthetic gas from urban garbage by virtue of combination of pyrolysis and plasma | |
| CN204281524U (en) | Sludge treating system | |
| CN106010651B (en) | A kind of processing unit of tanning waste and treatment process containing it | |
| CN101367002B (en) | Thermal decomposition treatment method for organic castoff | |
| CN103537477A (en) | Staged treatment equipment and technique for leather making wastes | |
| CN103173238B (en) | Thermal pyrolysis method for Fischer-Tropsch synthesis reaction wax residue | |
| CN105199757A (en) | High-water organic waste pyrolysis system and method thereof | |
| CN114058391A (en) | Organic matter pyrolysis device and method | |
| CN107245435B (en) | Device and method for producing methane through pyrolysis-biochemical coupling of organic solid wastes difficult to biochemically produce | |
| CN204803012U (en) | System for moisture organic matter pyrolysis production active carbon | |
| CN105537246A (en) | Resource utilization method and system for organic solid waste | |
| CN107662914A (en) | Utilize the method and processing system of tunnel cave charing house refuse | |
| CN104694166A (en) | Graded pyrolysis gasifying system and application thereof, and treatment method of leather-producing wastes | |
| CN212610427U (en) | Organic matter pyrolysis device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: NANJING LVZHAN ENERGY CO., LTD. Free format text: FORMER OWNER: ZHEJIANG HANJIE ENERGY AND ENVIRONMENTAL ENGINEERING CO., LTD. Effective date: 20100831 |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 310012 ROOM 423, EAST ZONE, BUILDING A, ZHEDA SCIENCE + TECHNOLOGY PARK, NO.525, XIXI ROAD, XIHU DISTRICT, HANGZHOU CITY, ZHEJIANG PROVINCE TO: 210037 8/F, BUILDING 6, TIANZHENG INTERNATIONAL PLAZA, NO.399, ZHONGYANG ROAD, GULOU DISTRICT, NANJING CITY, JIANGSU PROVINCE |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20100831 Address after: 210037, Nanjing, Jiangsu province Gulou District 399 Central Road No. 6 International Plaza, 8 floor Applicant after: Nanjing Lvzhan Energy Co.,Ltd. Address before: 310012, East 423, A building, Zhejiang University Science Park, 525 Xixi Road, Hangzhou, Zhejiang, Xihu District Applicant before: Zhejiang Hanjie Energy and Environmental Engineering Co., Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101208 Termination date: 20130928 |