CN2921607Y - City life refuse gasification melting incinerating treatment system - Google Patents
City life refuse gasification melting incinerating treatment system Download PDFInfo
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- CN2921607Y CN2921607Y CN 200620110873 CN200620110873U CN2921607Y CN 2921607 Y CN2921607 Y CN 2921607Y CN 200620110873 CN200620110873 CN 200620110873 CN 200620110873 U CN200620110873 U CN 200620110873U CN 2921607 Y CN2921607 Y CN 2921607Y
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Abstract
The utility model provides a city life refuse gasification melting incinerating treatment system, consisting of a storage storehouse, a gasifier, a dust collector, an incinerator and a high efficiency regenerator. The utility model is characterized in that the high-temperature air obtained from the flue gas waste heat of refuse gasification melting incineration is recycled and then introduced into the gasifier and the melting incinerator as the required air of refuse gasification and the required combustion-supporting air of refuse melting incineration, which guarantees steady refuse gasification and complete combustion, and thoroughly solves the secondary pollution of dioxins, heavy metals, etc. The system accords with the characteristics of low heat value, high moisture, undemanding separation and low grade of city life refuse, especially the lower heat value and output in some medium and small cities which can not both reach the requirement of constructing refuse incinerating power stations, avoiding the secondary pollution produced by storage and transportation. The whole system is flexible in scale and not strict with refuse separation and heat value, can steady operate under the condition of less auxiliary fuel or no auxiliary fuel with low cost, and can realize zero pollutant emission.
Description
Technical field
The utility model relates to the treatment technology of municipal refuse, is specifically related to the device that a kind of high temperature air gasification melting incinerating is handled domestic waste.
Background technology
Urban garbage disposal has become the common issue that countries in the world face.Unprocessed or the domestic waste dealt with improperly not only can appropriation of land, polluted underground water, destruction natural landscape, even the safety that jeopardizes people's lives and properties.China's year rubbish average speed of growth reaches more than 10%, and at least 2/3 city is absorbed in the tight encirclement of rubbish in more than 400 the domestic city; Simultaneously, contain the infection sources that a large amount of biopathogen bodies becomes various diseases in the rubbish.According to the refuse pollution investigation that reservoir area, the Yangtze River Gorges is stored up, the riverine rubbish of storing up is brought into the waters and has constituted potentiality harm, and particularly a large amount of white garbages swim in the water surface, when flowing through Pueraria lobota state dam generating set are constituted serious harm.How effectively domestic waste to be handled the problem that becomes people's extensive concern.
Domestic waste gasification and melting incineration technology is divided into one-step method gasification and melting incineration technology and two-step method gasification and melting incineration technology.Two-step method gasification and melting incineration technology is earlier to be to gasify under 500 ℃～600 ℃ the condition in reducing atmosphere and temperature with rubbish, form inflammable fuel gas and the residue that is easy to metal recovery such as iron, aluminium, carry out fuel gas again and burn and can control the high-temperature fusion processing that dioxin forms.Typical process is selected company for Switzerland's heat and is succeeded in developing, the back is introduced by Kawasaki, Japan system Inland Steel and the heat selective type refuse gasification fusion gas producing technology of digestion transformation.One-step method gasification and melting incineration technology is that the processes such as drying, gasification, burning and fusion with domestic waste place an equipment to carry out, and therefore whole process process equipment is simple, and construction investment and operating cost reduce greatly, operate also much easier.Typical process is the NKK formula house refuse direct gasification melting incinerating technology of Japanese NKK company development, and its main equipment direct gasification melting furnace comes from blast furnace, and its maximum characteristics are to need to consume coke.Domestic backroom boys has done the research work at China's domestic waste characteristics, and Southeast China University has developed a kind of drying, gasifying and melting process for the treatment of domestic refuse (patent CN00112320.3); Kunming University of Science and Technology has developed a kind of domestic waste direct gasification melting incineration system (patent CN00259909.0).At present, the common ground of domestic and international various gasification and melting technology is that the calorific value requirement of rubbish reaches more than 8300～9600kJ/kg with the pattern of " temperature, middle pressure or low temperature, lp steam turbine in arranging behind layout waste heat boiler recovery fume afterheat-waste heat boiler behind the incinerator " generating.And being inorganic content, the characteristics of China's domestic waste are higher than content of organics, not flammable composition is higher than combustible component, and calorific value is low, moisture is high, also contain sulphur, chloride material of certain ingredients etc., is a kind of very low-grade energy, and sorting index is low, and the composition fluctuation is very big.Obviously, indiscriminately imitate external technology, equipment is to solve the problem of China's waste incineration well.If adopt power generation mode, need drop into the normal operation that a large amount of cokes, coal or the much higher high-grade energy of fuel oil geometric ratio rubbish grade could guarantee system when then moving, must cause problems such as system's investment is big, operating cost is high, efficient is low.Some small and medium-sized cities particularly, the calorific value and the output of rubbish are lower, all do not reach the requirement of building the power station of burning away the refuse.The transhipment of rubbish and stack and to increase expense again and produce stench, ooze secondary pollution such as worry.
Summary of the invention
At the prior art above shortcomings, the purpose of this utility model provides and a kind ofly refuse classification, calorific value etc. is required not strict, can realize the domestic waste gasification and melting incineration treatment system of innoxious, resource, zero disposal of pollutants.
The purpose of this utility model is achieved in that domestic waste gasification and melting incineration treatment system, comprises repository, gasification furnace, deduster and incinerator, it is characterized in that being connected by totally enclosed belt conveyor between repository and the gasification furnace; The artificial fuel gas outlet of gasification furnace top communicates with deduster, and the deduster outlet communicates with incinerator, and the junction is provided with the turbulent burner of a tangential air intake; The deduster bottom is provided with the grey slag bucket that communicates with gasification furnace; The burning on fume in high temperature outlet links to each other with high-efficiency thermal storage chamber fume side, the fume side of high-efficiency thermal storage chamber communicates with induced-draft fan, the air side inlet of high-efficiency thermal storage chamber communicates with air blast, and the high temperature air outlet after being heated is communicated with gasification furnace and incinerator through conveying/jet pipe.
Described high-efficiency thermal storage chamber is made up of housing that is lined with refractory material and accumulation of heat bead, and bottom and top are provided with the conveyance conduit of flue gas and air respectively; High-efficiency thermal storage chamber mid-section body and its top and the bottom are adopted and flexibly connected, and are inboard with the sand seal sealing, and to be ball bearing can 180 ° come and go and rotate to reach the high-efficiency thermal storage chamber in the outside; Described bead by have high-efficiency thermal storage and heat release ability, refractory material that thermal shock resistance is good is made.
Key technical problem of the present utility model is: the heat that reclaims rubbish obtains high temperature air; The high-temperature flue gas waste heat that rubbish produces behind gasification and melting incineration stores through the high-efficiency thermal storage chamber and adds hot-air introduces gasification furnace, melting incinerating stove again, as refuse gasification required air and the required combustion air of melting incinerating rubbish; Do not adding or adding less the stable gasification of assurance rubbish, completing combustion under the auxiliary fuel condition, the secondary pollution that thoroughly solves dioxin, heavy metal, sour gas.
Compared to existing technology, the utlity model has following advantage:
(1) the method that the utility model proposes based on high temperature air gasification melting incinerating processing domestic waste, the high-temperature flue gas introducing high-efficiency thermal storage chamber that is about to the gasification, and combustion generation adds hot-air, air after the heating is introduced the scheme of gasification, the disposal of refuse of melting incinerating stove again, be to be that the thinking of main purpose is handled China's domestic waste with burning disposal rubbish, completely different with the mode treatment domestic waste thinking of the burning away the refuse of domestic present exploitation-recovery waste heat generating.The characteristics that the calorific value that meets China's domestic waste is low, moisture is high, sorting is not strict, grade is low, particularly some small and medium-sized cities, the calorific value of rubbish and output is lower all not to reach the requirement of building the power station of burning away the refuse, the secondary pollution of avoiding accumulating to produce; It is the garbage disposal scheme of a kind of industrial production, flexible, the efficient zero blowdown of provincialism scale.
(2) the high-efficiency thermal storage chamber that obtains high temperature air has the self-cleaning effects of further emission abatement flue gas: the indoor heat storage of high-efficiency thermal storage has the further effect of " cleaning " to flue gas, even the flue gas that the melting incinerating fire grate goes out also contains harmful substances such as part flying dust, when it stockpiles in bed during by high-efficiency thermal storage chamber bed, after commutation be air reverse when this regenerator " cleanings " accumulation of heat of heated while bed, formation with harmful substances such as flying dust bring into the gasification and melting incineration stove again fusion close circulating treating system.Regenerator interior " flue gas-air " alternately reverse flow can reach self-cleaning effect.The whole system scale is flexible, and is not strict to requirements such as refuse classification, calorific values, can add auxiliary fuel less or not add stable operation under the auxiliary fuel condition, and cost is low, can reach the purpose of processing and utilizing domestic waste, and can realize zero disposal of pollutants.Be a kind of efficient, energy-conservation, environmentally friendly garbage disposal scheme meets the requirement of the strategy of sustainable development.
Description of drawings
Fig. 1 is the structural representation of the utility model domestic waste gasification and melting incineration treatment system;
Fig. 2 is the A-A cutaway view of high-efficiency thermal storage chamber among Fig. 1;
Fig. 3 is the schematic diagram (amplification of B place) that is rotatably connected of high-efficiency thermal storage chamber among Fig. 1.
Specific embodiments
As shown in Figure 1, domestic waste gasification and melting incineration treatment system comprises repository 1, gasification furnace 2, deduster 4, incinerator 6, high-efficiency thermal storage chamber 8, grey slag bucket 5 and auxiliary burner 7, and air blast 9 and induced-draft fan 10; Be connected by totally enclosed belt conveyor between repository 1 and the gasification furnace 2; Gasification furnace 2 top artificial fuel gas outlets communicate with deduster 4, and deduster 4 outlets communicate with incinerator 6, and the junction is provided with the turbulent burner of a tangential air intake; Deduster 4 bottoms are provided with the grey slag bucket 5 that communicates with gasification furnace; The outlet of incinerator 6 high-temperature flue gas links to each other with high-efficiency thermal storage chamber 8 fume side, the fume side of high-efficiency thermal storage chamber 8 communicates with induced-draft fan 10, the air side inlet of high-efficiency thermal storage chamber 8 communicates with air blast 9, and the high temperature air outlet after being heated is communicated with gasification furnace 2 and incinerator 6 through conveying/jet pipe 3.
Incinerator 6 middle parts are provided with partition wall, and incinerator 6 is divided into two chambers that the bottom is communicated with, so that prolong the artificial fuel gas burning time of staying therein, make its burning more abundant, more thorough.
Auxiliary burner 7 is mainly used in to start the gasification and melting incineration refuse disposal system and cross when melting incinerating stove 6 temperature and carries out automatic heat patching when low and burn, and system closes when normally moving.If refuse thermal value is higher or gasification artificial fuel gas calorific value is higher, keeps native system and normally move back rest parts waste heat and can introduce hot-water boiler 11; If refuse thermal value is crossed low or gasification artificial fuel gas calorific value is low excessively, when the melting incinerating furnace temperature does not reach technological requirement, can enable auxiliary burner 7 by the temperature automatic detection and control system and carry out suitable concurrent heating, the assurance system normally moves, and the smoke comprehensive temperature maintenance that melting incinerating stove 6 is discharged is at 1300 ℃～1350 ℃.Among the figure, 12,13 and 14 is switch valves.
As Fig. 2, shown in Figure 3, described high-efficiency thermal storage chamber is made up of housing 16 that is lined with refractory material and accumulation of heat bead 15; Bottom and top are provided with the conveyance conduit of flue gas and air respectively; High-efficiency thermal storage chamber 8 mid-section body and its upper and lower part are adopted and are flexibly connected, inboard with sand seal 17 sealings, the outside can 180 ° comes and goes and rotates to reach the high-efficiency thermal storage chamber for ball bearing 18, realizes that indoor fume side of high-efficiency thermal storage and air side bead replace the purpose of accumulation of heat and heat release; When burning on fume in high temperature passes through the high-efficiency thermal storage chamber, the accumulation of heat bead of its fume side absorbs the waste heat of high-temperature flue gas fast and savings arrive in vivo saturated after, quick rotation makes the high-temperature heat accumulation bead place air side for 180 °, the normal temperature air that air blast blasts by the time, the accumulation of heat bead discharges heat rapidly again air heat to 1000 ℃～1050 ℃.Described bead adopt have high-efficiency thermal storage and heat release ability, refractory material that thermal shock resistance is good makes, as high alumina matter, mullite or cordierite refractory material etc.
Gasification and melting incineration is handled the method for domestic waste, to be stored in through the rubbish of primary election fragmentation in the repository 1, be delivered to high temperature air gasification stove 2 by totally enclosed belt, be heated to 1000 ℃～1050 ℃ high temperature air by high-efficiency thermal storage chamber 8, spray into 2 pairs of rubbish of gasification furnace through conveying/jet pipe 3 and carry out gasification process.The air consumption coefficient is controlled in 0.3～0.5, makes the combustible component in the solid refuse that the imperfect combustion reaction take place under 1300 ℃～hot environment more than 1350 ℃.Its not flammable composition changes liquid slag into, and the artificial fuel gas that contains higher calorific value is discharged from gasification furnace 2 tops and entered deduster 4.Be settled down to the grey slag bucket 5 from the harmful substances such as flying dust of deduster 4, add suitable absorbent (as active lime stone or lime slurry) simultaneously and absorb the harmful substance of solidifying wherein, and regularly it is sent into fusion again in the gasification furnace 2 with compressed air.Artificial fuel gas after the purification is sent into melting incinerating stove 6, fully burning under 1000 ℃～1050 ℃ high-temperature air combustion promoter, 1300 ℃～1350 ℃ of melting incinerating stove 6 Nei Wenduda, thoroughly disintegrate the condition that dioxin exists, the slag that the while fusing fly ash removes together with the high-temperature gasification fire grate is cured handles the innoxious and comprehensive utilization of resources of back realization.
The high-temperature flue gas of incinerator 6 is taken out to introduce high-efficiency thermal storage chamber 8 and carry out heat exchange with accumulation of heat bead 15 by induced-draft fan 10, make 1300 ℃～1350 ℃ high-temperature flue gas be reduced to 200 ℃～150 ℃ rapidly, has avoided 250 ℃～450 ℃ of the synthetic again temperature of dioxin.Air is sent into high-efficiency thermal storage chamber 8 by air blast 9 and is carried out heat exchange with heat storage bead 15, make air heat to 1000 ℃～1050 ℃, high-efficiency thermal storage chamber 8 can 180 ° comes and goes rotates, so that guarantee accumulation of heat/heat release that commutation realizes accumulation of heat spheroid 15 alternately, as shown in Figure 2.Air after the heating is introduced gasification furnace 2, melting incinerating stove 6 again, as refuse gasification required air and the required combustion air of melting incinerating rubbish, keeps native system and normally moves back rest parts waste heat and can introduce hot-water boiler 11.
The high temperature air temperature of gasification rubbish reaches 1000 ℃～1050 ℃, can strengthen gasification reaction, improve gasification rate and gasification efficiency, can under low air consumption coefficient, carry out, allow the water gas reaction of larger proportion simultaneously, calorific value that can fine adaptation house refuse, changeable characteristic becomes to grade.The air consumption coefficient is controlled in 0.3～0.5, makes the combustible component in the solid refuse that the imperfect combustion reaction take place under 1300 ℃～1350 ℃ hot environment, produces the artificial fuel gas that contains higher calorific value, and its not flammable composition changes liquid slag into.
The fuel gas that gasification furnace is discharged is fully burning under the high-temperature air combustion promoter condition, 1300 ℃～1350 ℃ of melting incinerating stove Nei Wenduda, thoroughly disintegrate the condition that dioxin exists, the slag that the while fusing fly ash removes together with the high-temperature gasification fire grate is cured handles the innoxious and comprehensive utilization of resources of back realization.H in the artificial fuel gas
2Harmful components such as S, HCl, flue dust are removed by purifying, and lime-ash returns melting and solidification processing in the high-temperature gasification stove.The part flue dust that enters incinerator with artificial fuel gas burns under the high-temperature air combustion promoter condition, melting and solidification is handled.Liquid slag solidifies through chilling handles the vitreous slag that forms stabilizer pole, makes malicious heavy metal seal unlikely stripping up for safekeeping, and has got rid of the possibility that discharges dioxin from garbage flying ash, can be used as the building materials raw material through solidifying the slag of handling.In addition, be grouped into lime-ash and furnace refractory is having much roughly the same based on one-tenth, when the valuable metal content in the lime-ash is higher, the flying dust, the slag that solidify add a certain amount of additive (flux, binding agent), make ball, according to its constituent, the raw material as the hot stove of blast furnace or ore deposit makes lime-ash to being fully used.Simultaneously, in burning process, adopt high temperature air to combine, can suppress the generation of NOx effectively with the low oxygen combustion technology.
The utility model adopts the high temperature air gasification principle, and key is that cheap continuous temperature air-source is arranged, so the generation of high temperature air and become the key technical problem that system in future is applied with optimizing and combining of refuse gasification, melting incinerating link.For this reason, when formulating and implementing scheme, take into full account that garbage disposal is innoxious, minimizing and resource target, to after handling, deduster enter the burning of high-temperature fusion incinerator from the grey artificial fuel gas that contains that gasification furnace is discharged, thoroughly disintegrate the condition that dioxin exists, the fusing fly ash chilling solidify to form the vitreous slag of stabilizer pole, makes malicious heavy metal seal unlikely stripping up for safekeeping.1300 ℃～1350 ℃ high-temperature flue gas is introduced the high-efficiency thermal storage chamber, drops to 200 ℃～150 ℃ through the heat exchange high-temperature flue-gas, and cold air is heated to 1000 ℃～1050 ℃, as the temperature air-source of gasification rubbish and artificial fuel gas melting incinerating.
Claims (3)
1, domestic waste gasification and melting incineration treatment system comprises repository (1), gasification furnace (2), deduster (4) and incinerator (6), it is characterized in that being connected by totally enclosed belt conveyor between repository (1) and the gasification furnace (2); The artificial fuel gas outlet of gasification furnace (2) top communicates with deduster (4), and deduster (4) outlet communicates with incinerator (6), and the junction is provided with the turbulent burner of a tangential air intake; Deduster (4) bottom is provided with the grey slag bucket (5) that communicates with gasification furnace (2); The outlet of incinerator (6) high-temperature flue gas links to each other with high-efficiency thermal storage chamber (8) fume side, the fume side of high-efficiency thermal storage chamber (8) communicates with induced-draft fan (10), the air side inlet of high-efficiency thermal storage chamber (8) communicates with air blast (9), and the high temperature air outlet after being heated is communicated with gasification furnace (2) and incinerator (6) through conveying/jet pipe (3).
2, gasification and melting incineration treatment system according to claim 1 is characterized in that described high-efficiency thermal storage chamber (8) is made up of housing that is lined with refractory material (16) and accumulation of heat bead (15), and bottom and top are provided with the conveyance conduit of flue gas and air respectively; High-efficiency thermal storage chamber mid-section body and its top and the bottom are adopted and flexibly connected, and are inboard with sand seal (17) sealing, and to be ball bearing (18) can 180 ° come and go and rotate to reach the high-efficiency thermal storage chamber in the outside; Described bead by have high-efficiency thermal storage and heat release ability, refractory material that thermal shock resistance is good is made.
3, gasification and melting incineration treatment system according to claim 1 is characterized in that described high-efficiency thermal storage chamber (8) is through carrier pipe (3) introducing hot-water boiler (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620110873 CN2921607Y (en) | 2006-06-30 | 2006-06-30 | City life refuse gasification melting incinerating treatment system |
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| CN 200620110873 CN2921607Y (en) | 2006-06-30 | 2006-06-30 | City life refuse gasification melting incinerating treatment system |
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| CN2921607Y true CN2921607Y (en) | 2007-07-11 |
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| CN 200620110873 Expired - Lifetime CN2921607Y (en) | 2006-06-30 | 2006-06-30 | City life refuse gasification melting incinerating treatment system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100424415C (en) * | 2006-06-30 | 2008-10-08 | 重庆大学 | Incineration treating method and system for gasifying and melting domestic waste from city |
| WO2011026307A1 (en) * | 2009-09-07 | 2011-03-10 | Wang Xingdao | System and method for waste harmless treatment and power generation |
| CN101817012B (en) * | 2009-02-27 | 2012-02-29 | 上海神工环保股份有限公司 | Gasification treatment device for household refuse |
| CN103363530A (en) * | 2013-03-21 | 2013-10-23 | 温州市特种设备检测中心 | Leather waste vaporizing combustion and heat recovery system, and operation method thereof |
| CN107435928A (en) * | 2016-05-25 | 2017-12-05 | 北京三态环境科技有限公司 | A kind of internal heat type domestic garbage pyrolysis system |
| CN108775585A (en) * | 2018-07-04 | 2018-11-09 | 加拿大艾浦莱斯有限公司 | A kind of waste high temperature air/water steam gasification, and combustion fusing system |
| RU187923U1 (en) * | 2018-10-25 | 2019-03-25 | Общество с ограниченной ответственностью "ЭнергоТэк" | PIPE FOR LAYING A CABLE LINE WITH PROTECTION OF THE CABLE COVER FROM MECHANICAL DAMAGES AT THE END PLOTS |
| RU188117U1 (en) * | 2018-12-10 | 2019-03-29 | Общество с ограниченной ответственностью "ЭнергоТэк" | TUBULAR CABLE |
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2006
- 2006-06-30 CN CN 200620110873 patent/CN2921607Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100424415C (en) * | 2006-06-30 | 2008-10-08 | 重庆大学 | Incineration treating method and system for gasifying and melting domestic waste from city |
| CN101817012B (en) * | 2009-02-27 | 2012-02-29 | 上海神工环保股份有限公司 | Gasification treatment device for household refuse |
| WO2011026307A1 (en) * | 2009-09-07 | 2011-03-10 | Wang Xingdao | System and method for waste harmless treatment and power generation |
| CN103363530A (en) * | 2013-03-21 | 2013-10-23 | 温州市特种设备检测中心 | Leather waste vaporizing combustion and heat recovery system, and operation method thereof |
| CN103363530B (en) * | 2013-03-21 | 2015-10-21 | 温州市特种设备检测中心 | A kind of leather waste gasification, and combustion and heat recovery system and method for operating thereof |
| CN107435928A (en) * | 2016-05-25 | 2017-12-05 | 北京三态环境科技有限公司 | A kind of internal heat type domestic garbage pyrolysis system |
| CN108775585A (en) * | 2018-07-04 | 2018-11-09 | 加拿大艾浦莱斯有限公司 | A kind of waste high temperature air/water steam gasification, and combustion fusing system |
| CN108775585B (en) * | 2018-07-04 | 2020-05-12 | 加拿大艾浦莱斯有限公司 | Waste high-temperature air/steam gasification combustion melting system |
| RU187923U1 (en) * | 2018-10-25 | 2019-03-25 | Общество с ограниченной ответственностью "ЭнергоТэк" | PIPE FOR LAYING A CABLE LINE WITH PROTECTION OF THE CABLE COVER FROM MECHANICAL DAMAGES AT THE END PLOTS |
| RU187923U9 (en) * | 2018-10-25 | 2019-05-07 | Общество с ограниченной ответственностью "ЭнергоТэк" | PIPE FOR LAYING CABLE LINE WITH PROTECTION OF CABLE SHELL AGAINST MECHANICAL DAMAGE AT END PARTS |
| RU188117U1 (en) * | 2018-12-10 | 2019-03-29 | Общество с ограниченной ответственностью "ЭнергоТэк" | TUBULAR CABLE |
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Effective date of abandoning: 20081008 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |