CN103128093B - Urban garbage treating method - Google Patents
Urban garbage treating method Download PDFInfo
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- CN103128093B CN103128093B CN201110387700.7A CN201110387700A CN103128093B CN 103128093 B CN103128093 B CN 103128093B CN 201110387700 A CN201110387700 A CN 201110387700A CN 103128093 B CN103128093 B CN 103128093B
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- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 21
- 230000008569 process Effects 0.000 claims abstract description 15
- 239000004033 plastic Substances 0.000 claims abstract description 10
- 229920003023 plastic Polymers 0.000 claims abstract description 10
- 229920005610 lignin Polymers 0.000 claims abstract description 9
- 230000018044 dehydration Effects 0.000 claims abstract description 8
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 8
- 239000003513 alkali Substances 0.000 claims abstract description 7
- 239000000446 fuel Substances 0.000 claims abstract description 5
- 239000007787 solid Substances 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims abstract description 4
- 238000009833 condensation Methods 0.000 claims abstract description 3
- 230000005494 condensation Effects 0.000 claims abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract 2
- 229910052799 carbon Inorganic materials 0.000 claims abstract 2
- 239000000203 mixture Substances 0.000 claims description 14
- 239000002699 waste material Substances 0.000 claims description 10
- 235000002918 Fraxinus excelsior Nutrition 0.000 claims description 7
- 239000002956 ash Substances 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 6
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 6
- 241001330002 Bambuseae Species 0.000 claims description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 6
- 239000011425 bamboo Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 6
- 238000007731 hot pressing Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000003610 charcoal Substances 0.000 claims description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 3
- 239000003546 flue gas Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000002585 base Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 239000012141 concentrate Substances 0.000 claims 1
- 230000007547 defect Effects 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000003763 carbonization Methods 0.000 abstract 2
- 238000010000 carbonizing Methods 0.000 abstract 1
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 238000009264 composting Methods 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 4
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000003900 soil pollution Methods 0.000 description 2
- 239000002352 surface water Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000008821 health effect Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000010850 non-combustible waste Substances 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000012492 regenerant Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
Facing the defect of garbage collection in China and realistically aiming at the objectivity of high humidity mixed garbage, the invention provides a recycling harmless reduction comprehensive treating method. The urban garbage treating method comprises two processes including selection and treatment, wherein the first step includes that obvious large solid block garbage are selected out, garbage which is combustible serve as heat source fuel of factories, the garbage which is not combustible serves as available objects to be recovered or serves as litter to be buried. Besides, the remaining garbage which accounts for 80% of the total garbage is treated as follows: (1) dehydration and drying: conducting dehydration and drying on the garbage at the temperature of about 180 DEG C, enabling the garbage to be broken when the temperature reaches to the melting point of a plastic bag, and exposing the garbage which is in the bag; (2) applying alkali lignin and stirring to dry; (3) feeding materials; (4) conducting hot compression and plasticization so as to enable the density of the materials to reach 0.9-1.4<cm3>; (5) saw cutting, cutting and piling the materials according to requirement specifications after the materials are discharged; and (6) carbonization, carbonizing the piled materials, conducting condensation and collection on volatile matters for utilization, and cooling the volatile matters into carbon after complete carbonization.
Description
[technical field]
The present invention relates to technical field of municipal refuse treatment.
[background technology]
The solid waste that rubbish is mankind's daily life and produces in producing, because discharge rate is large, complicated component is various, brings difficulty to disposal and utilization, as do not processed in time or deal with improperly, just pollutes the environment, affects environmental sanitation.
In prior art treating method for urban garbage, extensively adopt both at home and abroad at present and mainly contain sanitary landfills, During High-Temperature Composting and burning etc., some other new technology, just constantly makes progress.
Burning is the Assessment of MSW Disposal Technologies that current countries in the world extensively adopt, good operation safety, technically reliable, take up an area little, addressing is easy, can near urban spraw, transportation range is nearer, without soil pollution, heat energy or electric energy can be produced, become the main flow for the treatment of of urban garbage gradually, but burning and generating heat energy export with the rate of recovery low, operating cost is large, cost of electricity-generating is high, Lower heat value rubbish is less than 3300kJ/kg need add auxiliary fuel, be mainly manifested on dioxin very serious to the pollution of air, dioxin is the liposoluble substance of colorless and odorless, be very easy to accumulate in vivo, serious to harm, toxicity is extremely strong, every ounce just can be killed 1,000,000 people, dioxin in atmospheric environment 90% derives from city and industrial refuse and incineration.
Sanitary Landfill Technology is reliable, and recyclable marsh gas power generation, but floor space is large, and addressing is more difficult, consider landform, geological conditions, prevent surface water, underground water pollution, general away from urban district, transportation range is comparatively far away, and land resource waste is serious, it can cause soil pollution for landfill area, and likely pollutes surface water and groundwater
Compost handling safety technically reliable, addressing is also comparatively easy, and only need to avoid resident compact district, odor impact radius is less than 200m, and transportation range is moderate, but heavy metal can pollute soil, and due to fertilizer component complexity, minimizing reality is less.
Constantly occurred some new technologies in treatment of urban garbage in recent years, emphasis proposes a lot of scheme with regard to garbage as resource, but deficiency be actual apply less, mainly because Integration ofTechnology is poor, only carry out selective process to rubbish to utilize, and cost is also general high, utilization rate is low.
In prior art treatment of urban garbage, also there is the deficiency of refuse collection aspect: garbage collection method is the main factor affecting treatment of urban garbage effect, classification receives can create good condition for comprehensive reutilization, but by the restriction of resident's environmental consciousness, the complexity of classifying rules causes resident to be hard to tell in addition is also principal element, Compostable is divided into as Australia, recyclable rubbish, not recyclable rubbish, Japan is generally divided into combustiblerefuse, non-combustible waste, China is divided into four large classes house refuse: recyclable rubbish, rubbish from cooking, Harmful Waste and Other Waste, mostly be mixing by the collection method affecting in fact China's rubbish above to receive, it is high humidity composting, its complicated component, bagged articles content is high, conventional method cannot normally effectively be classified, moisture is large, average moisture 50%, limit moisture is up to 70%, calorific value is low, kitchen is remaining and dregs class content is high, think according to a Research statistics, the typical composition of Chinese MSW research is: organic matter comprises animal and plant and accounts for weight 65.20%, inorganic matter comprises ashes masonry dregs and accounts for weight 20.06%, waste product class comprises and accounts for weight 13.74%, comprising stationery 1.3%, plastics 11%, dry goods 0.5%, pottery 1.04%, glass 0.26%, metal 0.64%, rubbish average moisture 50%, therefore, there is larger deficiency in three kinds of modes for the treatment of of urban garbage.
[summary of the invention]
The object of the invention is to the defect overcoming three kinds of processing methods in above prior art, in the face of the deficiency of China in refuse collection, and realistically for the objectivity of high humidity composting, provide the resource of an integrated treatment innoxious quantitative reduction method.
In order to achieve the above object, the technical solution used in the present invention is:
A kind for the treatment of method for urban garbage, comprises and selects and process two operations;
1, select, picked out by the block rubbish of solid of obvious large part, dimensional thickness requires as being greater than 15 centimetres, comprises furniture, case and bag, bamboo waste log, plastics, glass, metal, pottery, masonry and concentrated ashes dregs; This kind of rubbish proportion is less, and easily identify fast and select, workload is less;
2, process
A, using the combustible selected above as factory's thermal source fuel, comprises furniture, case and bag, bamboo waste log;
B, done by the noncombustibles selected above to utilize thing to reclaim or discarded object landfill disposal, as glass, plastics, metal, can recycle, masonry, pottery and the ashes dregs concentrated can do sanitary landfills process;
C, does following process by the remaining rubbish accounting for rubbish total amount more than 80%:
(1) dehydrate, under temperature about 180 DEG C conditions, process is dehydrated to rubbish, make msw water content less than 40%, under temperature about 180 DEG C conditions, reach polybag fusing point and make it brokenly open, in bag, rubbish exposes, centrifugal dehydration drier can be used, best is the successional discharging machinery that automatically adds, and coordinates autotransmitter tool, working environment can be avoided the health effect of workman;
(2) alkali lignin mix and blend is applied dry, mixer is entered after dehydrating process, apply appropriate bases lignin, addition is pressed component of refuse and determines, and is generally greater than more than 20% of total weight of material, to be that black liquid is spray-dried obtain alkali lignin, there is the feature of high heating value high-adhesion insoluble in water, then mix and blend is dry, makes mixture moisture content less than 15%, equipment can adopt flue gas formula stirring and drying machine, and thermal source is obtained by 2A place;
(3) feed, above material handling is loaded hot press hopper by weight, can mechanical charging, also can hand charging, the best is mechanical charging;
(4) hot pressing plastics processing, placing hot-pressing system by adding honest material hopper above, suppressing, make material density reach 0.9 ~ 1.4g/cm under temperature 130 ~ 200 DEG C, pressure 5 ~ 20MPa condition
3;
(5) sawing, becomes to require that specification is stacking through sawing after discharging;
(6) carbonize, stacking material is sent into the charing of charing stove, and condensation Collection utilization is done to volatile matter, be cooled to charcoal after charing completely;
Good effect of the present invention is:
(1) mode is selected in employing, saves a large amount of energy consumption, time; Adopting second stage drying method, is for the many features of the bag in bag of high humidity composting, and first time, centrifugal dehydration was obvious for high moisture material efficiency and energy consumption based on broken bag;
(2) a large amount of Liginon Resources produced in pulping and paper-making can be fully used, alleviate the pressure of slurrying environmental improvement, take full advantage of the feature of alkali lignin high heating value and high-adhesion, accomplish effectively to supplement to the low heat value of rubbish, and garbage-molding is played a key effect;
(3) hot pressing is shaping, mold pressing eliminate fashion of extrusion need to pulverize needed for operation and high energy consumption, production capacity greatly can scale;
(4) carbonize into charcoal, finally really accomplish resource, innoxious and minimizing;
[detailed description of the invention]
The embodiment that a kind for the treatment of method for urban garbage of the present invention is concrete is below provided.But the invention is not restricted to following examples.
Embodiment
Picked out by the block rubbish of solid of obvious large part, dimensional thickness is generally and is greater than 15 centimetres, as furniture, case and bag, bamboo waste log, plastics, glass, metal, pottery, masonry and concentrated ashes dregs; The combustible of the furniture selected above, case and bag, bamboo waste log is placed boiler shop as fuel, the utilized thing regenerant glass selected above, plastics, metal are placed and thing can be utilized to reclaim warehouse, draws refuse landfill to do sanitary landfills masonry, pottery and concentrated ashes dregs etc.; The remaining rubbish accounting for rubbish total amount more than 80% is done following process: in Seal treatment workshop, rubbish inputs to through autotransmitter tool the centrifugal dehydration drier automatically adding discharging and dehydrates, centrifugal dehydration drier temperature is at 180 DEG C, centrifugal dehydration drier is sloughed moisture and is put treatment tank process, after half-dried msw water content reaches less than 40%, discharging puts flue gas formula stirring and drying machine through autotransmitter tool, automatically add the alkali lignin accounting for weight of material 30% in mixer and carry out mix and blend drying, make mixture moisture content reach 10%; Again above material handling is put above hot press hopper by autotransmitter tool, after electronic scale is weighed, pour hot press hopper into; Place hot-pressing system by adding honest material hopper above, suppress under temperature 130 ~ 200 DEG C, pressure 5 ~ 20MPa condition, material specification is 2440mm*1220mm*100mm, and density reaches 1.3g/cm
3; Specification is become to be that 500mm*100mm*100mm is stacking through sawing after discharging; Finally stacking material is sent into the charing of charing stove, calcination stage temperature reaches 1000 DEG C, cools out stove after having calcined.
Claims (2)
1. a treating method for urban garbage, is characterized in that, comprises and selects and process two operations:
(1) select, picked out by the block rubbish of solid of obvious large part, dimensional thickness requires as being greater than 15 centimetres, comprises furniture, case and bag, bamboo waste log, plastics, glass, metal, pottery, masonry and concentrated ashes dregs; This kind of rubbish proportion is less, and easily identify fast and select, workload is less;
(2) process,
(2-A) using the combustible selected above as factory's thermal source fuel, comprise furniture, case and bag, bamboo waste log;
(2-B) the noncombustibles part selected above is done to utilize thing to reclaim, comprise glass, plastics, metal; The noncombustibles part selected above is made discarded object landfill disposal, the ashes dregs comprising masonry, pottery and concentrate;
(2-C) the remaining rubbish accounting for rubbish total amount more than 80% is done following process:
(2-C-1) dehydrate, use centrifugal dehydration drier, under temperature about 180 DEG C conditions, process is dehydrated to rubbish, make msw water content less than 40%, under temperature about 180 DEG C conditions, reach polybag fusing point and make it brokenly open, in bag, rubbish exposes;
(2-C-2) alkali lignin mix and blend is applied dry, mixer is entered after dehydrating process, apply appropriate bases lignin, addition press component of refuse and determines, after drying always weight of material more than 20%, to be that black liquid is spray-dried obtain alkali lignin, there is the feature of high heating value high-adhesion insoluble in water, then mix and blend is dry, makes mixture moisture content less than 15%, equipment adopts flue gas formula stirring and drying machine, and thermal source is that operation (2-A) place obtains;
(2-C-3) feed, above material handling is loaded hot press hopper by weight;
(2-C-4) hot pressing plastics processing, placing hot-pressing system by adding honest material hopper above, suppressing, make material density reach 1.0 ~ 1.4g/cm under temperature 130 ~ 200 DEG C, pressure 5 ~ 20MPa condition
3;
(2-C-5) sawing, becomes to require that specification is stacking through sawing after discharging;
(2-C-6) carbonize, stacking material is sent into the charing of charing stove, and condensation Collection utilization is done to volatile matter, be cooled to charcoal after charing completely.
2. a kind for the treatment of method for urban garbage according to claim 1, it is characterized in that the charcoal obtained by operation (2-C) is Organic carbon, calorific value is higher than 30000KJ/Kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110387700.7A CN103128093B (en) | 2011-11-25 | 2011-11-25 | Urban garbage treating method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110387700.7A CN103128093B (en) | 2011-11-25 | 2011-11-25 | Urban garbage treating method |
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| Publication Number | Publication Date |
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| CN103128093A CN103128093A (en) | 2013-06-05 |
| CN103128093B true CN103128093B (en) | 2015-07-08 |
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| CN201110387700.7A Active CN103128093B (en) | 2011-11-25 | 2011-11-25 | Urban garbage treating method |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107236554A (en) * | 2016-03-29 | 2017-10-10 | 北京三聚环保新材料股份有限公司 | A kind of process for upgrading of garbage-molding material |
| CN106363012A (en) * | 2016-08-31 | 2017-02-01 | 云南珍稀多生物科技产业有限公司 | Municipal waste recovery treatment equipment and method |
| CN109926431A (en) * | 2018-11-20 | 2019-06-25 | 环创(厦门）科技股份有限公司 | Bulky Waste treatment process |
| CN110589300B (en) * | 2019-09-20 | 2022-01-25 | 常州大学 | Wet refuse storage device |
| CN111420791A (en) * | 2020-03-20 | 2020-07-17 | 娜谷环保科技(深圳)有限公司 | Garbage disposal method, equipment and computer readable storage medium |
| CN112191653A (en) * | 2020-08-13 | 2021-01-08 | 光大环境科技（中国）有限公司 | Garbage classification and treatment method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1370633A (en) * | 2001-02-22 | 2002-09-25 | 张长华 | Comprehensive treating and reusing method for city domestic garbage |
| CN1951586A (en) * | 2005-02-06 | 2007-04-25 | 许绍良 | Method for innocuity, resource utilization and decrement processing of organic garbage |
| CN101781594A (en) * | 2010-02-02 | 2010-07-21 | 奥科·诺塔 | Method and device for converting solid waste into fuel or energy |
| CN101804414A (en) * | 2009-02-13 | 2010-08-18 | 叶毅 | Method and processing system for comprehensively recycling municipal solid wastes |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100843165B1 (en) * | 2006-11-17 | 2008-07-02 | 이왕세 | Method for preparing a charcoal using combustible organic waste matters |
| JP2010084078A (en) * | 2008-10-01 | 2010-04-15 | Harashima Tomoko | Solid fuel and method for producing the same |
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2011
- 2011-11-25 CN CN201110387700.7A patent/CN103128093B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1370633A (en) * | 2001-02-22 | 2002-09-25 | 张长华 | Comprehensive treating and reusing method for city domestic garbage |
| CN1951586A (en) * | 2005-02-06 | 2007-04-25 | 许绍良 | Method for innocuity, resource utilization and decrement processing of organic garbage |
| CN101804414A (en) * | 2009-02-13 | 2010-08-18 | 叶毅 | Method and processing system for comprehensively recycling municipal solid wastes |
| CN101781594A (en) * | 2010-02-02 | 2010-07-21 | 奥科·诺塔 | Method and device for converting solid waste into fuel or energy |
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