CN1334152A - Process for treating city house refuse by wet decomposing method - Google Patents
Process for treating city house refuse by wet decomposing method Download PDFInfo
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- CN1334152A CN1334152A CN00120763A CN00120763A CN1334152A CN 1334152 A CN1334152 A CN 1334152A CN 00120763 A CN00120763 A CN 00120763A CN 00120763 A CN00120763 A CN 00120763A CN 1334152 A CN1334152 A CN 1334152A
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
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Abstract
A process for treating domestic garbage by wet decomposihng method includes separating said domestic garbage, breaking, wet decomposing reaction at 100-180 deg.C and 0.2-2.0 MPa for 10 min-5 hr in a sealed container, discharging and preparing fertilizer.
Description
The present invention relates to a kind of garbage treatment technology, belong to the municipal solid wastes process field, be applicable to the garbage treatment of various scales.
Domestic waste is meant in the daily life of city or the solid waste that is produced in the activity of service is being provided for the city daily life.Domestic waste generally contains: the article of recyclable utilizations such as copper, iron; Battery, electronic circuit board etc. contain the article of heavy metal; Inorganicss such as masonry, glass, dregs; The high heating value organism that plastics, paper, textiles, wood materials etc. are difficult to degrade; Kitchen residuums such as the dish leaf of melon and fruit peel, removal, food waste or the like.
The processing of domestic waste at present mainly contains three kinds of methods: landfill method, burning method and composting process.The site of landfill method is subjected to the restriction ratio of geology, hydrology character condition more, not only needs to take a large amount of soils, and needs very high antiseepage, fire prevention, explosion-proof treatment measures, otherwise can cause serious pollution; The site must be away from the urban district in addition, and shipment distance is far away, freight charges are high, but also needs a large amount of overburden soils, and stabilization period reaches decades even goes up century-old.The burning method investment is big, and payback period is long, the processing cost height, and complex management, treatment effect is vulnerable to the influence of rubbish composition and calorific value, and the pollution problem of burning back tail gas is difficult to thorough solution.Composting process has takes up an area of the secondary pollution that many, sewage and waste gas causes and is difficult to problems such as control, and fertilizer efficiency is not high, and quality is instability also.
A kind of method of separating from rubbish and generating organism and inorganics and being used is respectively disclosed in international monopoly WO82/01483, its content is that a device with holes is set in encloses container again, refuse directly packed into carry out high temperature high pressure process in the hole container, inorganics is stayed in the hole container, utilize organism to ferment then as feed, material after the fermentation can recovered alcohol, and reclaims biogas in the anaerobic still.A kind of " three-in-one " organic garbage of city system handles technology that integrates compost, burning, landfill is disclosed in Chinese patent CN1177525A, carry out compost production by the half-sealed fermentation cabin, and once all in same storehouse, carry out with Secondary Fermentation, but rate of return on investment is lower, and effect, the efficient handled are all unsatisfactory.
Wet separating be meant rubbish put into encloses container, under the condition that temperature, pressure and moisture are arranged, through the certain hour reaction, makes that various components obtain degraded in the rubbish, and make the material resynthesis after the part degraded be rotten technological process of planting matter.Separate under the condition wet, general bacterium can't survive, and the various plant seeds that contained in the rubbish also can't germinate, and can realize the harmless treatment of rubbish fully.In wet separating, mainly the kitchen residuum is degraded, and other materials generally can not react.
The object of the present invention is to provide the wet solution of a kind of usefulness to carry out the technology of garbage treatment, this technology can realize innoxious, minimizing, the resource utilization of refuse treatment.
The present invention is achieved in that earlier refuse classification wet and separates, and will finish the wet garbage emission of separating by spraying device then and come out to become to wet and separate material, will wet at last to separate material and make fertilizer.
Sorting for rubbish, can be with crude waste by sewing with long stitches car and handle grab bucket or packing in the loading hopper of feeding device by load wagon, in feeding device, be provided with homogenizing device with the rubbish shaping to certain width and thickness, be provided with scraper chain conveyer in the bottom of feeding device rubbish be transported to conveyor equably.On conveyor, ironware, the Nonexpendable Items such as refuse battery that contain magnetic are separated, masonry, glass, remaining battery are selected on the letter sorting belt by sorting equipment or by the operator again with the belt electromagnetic separator.Rubbish after the sorting is sent into crusher and is carried out fragmentation.Then rubbish is sent in the screening plant, rubbish at first sifts out earth by φ 2～20mm sieve aperture herein; Pass through φ 20～100mm sieve aperture then, degradable organic materials is sifted out; And screen overflow is generally plastics, stationery and wood materials.In this refuse classification technology, concentration equipment also can be placed on after sorting equipment or the screening plant.Can also screen overflow further be screened by pneumatic separator if desired.If contain many bagged garbages in the rubbish, also need the organism that sifts out is utilized sorting equipment once more or smaller masonry, glass and battery selected on the belt in letter sorting by the operator.So just the complete category of the crude waste that loads in mixture can be sorted out.If rubbish is the rubbish that contains the kitchen residuum of good sorting or packing, just can directly rubbish be carried out fragmentation.
Separating for the wet of rubbish, is that the rubbish that diameter after the fragmentation (or length) is not more than 100mm is sent in the special pressure vessel by transfer roller.The volume of container and quantity can be determined according to actual garbage treatment quantity and production requirement.Rubbish in the encloses container reacts under the condition of 0.1～2.1MPa air pressure, 100～180 ℃ of temperature, and the time of reaction is 10 minutes～5 hours.According to actual detected and processing analysis on its rationality, preferred process range is that air pressure is that 0.5～0.8MPa, temperature are 140～170 ℃, and the reaction times is 1～3 hour.Rubbish is wet to be separated reaction process and both can directly carry out under the condition that does not add substance, also can under the condition that adds entry or water vapor, carry out, in addition in order to accelerate reaction process, can also add catalytic media, catalytic media can be: sulfuric acid, hydrochloric acid, nitric acid, sulfurous acid ammonia, oxalic acid or acetic acid.Heat and pressing mode can be: directly in encloses container, feed saturated or unsaturated water vapor or use deep fat or steam indirect heating container, adopt microwave heating and in container, feed pressurized air at internal tank.Separate reaction through wetting, kill the objectionable impurities in the rubbish and remove peculiar smell, make rubbish thoroughly innoxious, simultaneously the macromole of long-chain in the organism is resolved into the small molecules of short chain, and resynthesis is that matter is planted in the corruption that is easy to plant absorbing, for the resource utilization of rubbish creates conditions.
For discharge process, finish the wet rubbish of separating after handling and become the wet material of separating, to wet with spraying device and to separate material and spurt discharge bin through blow-off valve in the encloses container, can be not when spurting by pressure release directly total head spurt, also can spurt again after the first venting part pressure.Flash distillation effect when spurting can discharge water vapor, thereby can separate the portion of water discharge in the material with wetting, and accomplishes minimizing.
The wet material moisture of separating that blows out from encloses container is about 65%, can will wet by extrusion machine squeezing and separate liquid and extrude water content is reduced to about 50%, become moisture about 15% the wet dry material of separating by the drying machine drying again and make the further minimizing of material, make the material homogeneous by homogenizing device then, make fertilizer at last, wherein the wet liquid of extruding by squeezing machine of separating with 10% left and right sides concentration both can join drying in the drying machine, also can make liquid fertilizer.If also rubbish directly can be made fertilizer after wet separating to the simple and easy processing of rubbish.
Production instance: the refuse breaking that will sub-elect, sieve out diameter less than 65mm rubbish by trommel screen again, directly pack into 11 cubic metres wet separating in the still, to wet after filling, it is airtight to separate still, feeding saturation steam makes the still internal pressure reach 0.7MPa, and kept 2 hours, the pressure of separating in the still that will wet is earlier let out to 0.4MPa, open blow-off valve again, separating the rubbish of finishing with wetting spurts to discharge bin, then the rubbish in the discharge bin is sent into double spiral squeezer, moisture about 65% rubbish is sloughed the wet liquid of separating of a part make liquid fertilizer, moisture about 50% rubbish after will dewatering is again sent into extremely moisture 15% dry material of drying machine inner drying, removes to make solid fertilizer then.
Advantage of the present invention is: adopt wet solution technology, can make rubbish at certain pressure and temperature Lower process certain hour sufficient reacting is accomplished innoxious; Secondly, rubbish can cut off in wet solution process The organic matter long-chain make it become active strong material, and matter is planted in the corruption of synthetic various molecular weight again, Be beneficial to plant absorbing, can make rubbish carry out abundant resource; Again, the flash distillation when spurting Moisture is discharged in effect can make garbage decrement. Therefore the present invention can fully reach the harmless of rubbish The purpose of change, minimizing and resource. Adopt disposal of refuse of the present invention to have little, the fortune of equipment investment The row cost is low, land area is few, with short production cycle, disposal ability is strong and do not have the spy of secondary pollution Point has widely applicability.
Claims (10)
1. the technology with treating city house refuse by wet decomposing method comprises the steps:
Primary domestic waste is utilized collaborative works such as feeding device, concentration equipment, sorting equipment carry out sorting;
To carry out fragmentation through the garbage utilization shredder assembly after the sorting;
To send in the sealable container through the rubbish that screening plant screening back diameter or length are not more than 100mm;
In confined conditions, keeping the encloses container internal pressure is 0.2～2.0MPa, and temperature is 100～180 ℃, carries out 10 minutes～5 hours wet and separates reaction;
To wet and separate reacted rubbish material and be made into fertilizer.
2. the technology with treating city house refuse by wet decomposing method according to claim 1 is characterized in that: rubbish is wet to be separated reaction process and both can directly carry out under the condition that does not add substance, also can carry out under the condition that adds entry or water vapor.
3. the technology with treating city house refuse by wet decomposing method according to claim 1 is characterized in that: can also add the acidic catalyst medium and accelerate reaction process in encloses container.
4. the technology with treating city house refuse by wet decomposing method according to claim 1 is characterized in that: the pressuring method of heating can be directly to feed saturated or superheated water vapor in encloses container.
5. the technology with treating city house refuse by wet decomposing method according to claim 1, it is characterized in that: the pressuring method of heating can be to use deep fat or steam indirect heating container, or adopts microwave heating at internal tank, and feeds pressurized air in container.
6. the technology with treating city house refuse by wet decomposing method according to claim 1 is characterized in that: the material of separating after finishing that will wet both can directly be used as the fertilizer use, also can make fertilizer again after handling by squeezing, drying.
7. the technology with treating city house refuse by wet decomposing method according to claim 1 is characterized in that: the wet liquid of separating that the wet material of separating after finishing can produce by squeezing, and both can join and carry out drying in the drying machine, also can make liquid fertilizer.
8. the technology with treating city house refuse by wet decomposing method according to claim 1 is characterized in that: the preferred pressure scope is 0.5～0.8Mpa in the encloses container.
9. the technology with treating city house refuse by wet decomposing method according to claim 1 is characterized in that: preferred temperature range is 140～170 ℃ in the encloses container.
10. the technology with treating city house refuse by wet decomposing method according to claim 1 is characterized in that: be preferably 1～3 hour in the time of encloses container internal reaction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00120763A CN1334152A (en) | 2000-07-13 | 2000-07-13 | Process for treating city house refuse by wet decomposing method |
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| CN00120763A CN1334152A (en) | 2000-07-13 | 2000-07-13 | Process for treating city house refuse by wet decomposing method |
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| CN1334152A true CN1334152A (en) | 2002-02-06 |
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| CN00120763A Pending CN1334152A (en) | 2000-07-13 | 2000-07-13 | Process for treating city house refuse by wet decomposing method |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328227C (en) * | 2002-08-27 | 2007-07-25 | 王和勋 | Process for preparing composite organic fertilizer life garbage in urban area |
| CN101869904A (en) * | 2010-06-13 | 2010-10-27 | 烟台润达垃圾处理环保股份有限公司 | Hydrothermal degradation comprehensive processing technology for domestic garbage |
| CN102211105A (en) * | 2011-01-27 | 2011-10-12 | 中国科学院力学研究所 | Household garbage preprocessing process used for plasma gasification generating |
| CN102240661A (en) * | 2011-05-16 | 2011-11-16 | 云南天远生态环保科技有限责任公司 | Pretreatment method and equipment for household garbage |
| CN101713304B (en) * | 2009-09-30 | 2013-05-29 | 陈小刚 | Method for cycle power generation by carrying out wet decomposition pretreatment, dry distillation and gasification on domestic garbage |
| CN103480629A (en) * | 2013-09-11 | 2014-01-01 | 同济大学 | Microwave hydrothermal deoiling method for food waste solid-phase |
| CN103804035A (en) * | 2012-11-09 | 2014-05-21 | 北京机电院高技术股份有限公司 | Food waste composting pre-treatment method |
| CN105271935A (en) * | 2015-11-03 | 2016-01-27 | 陶祖岐 | Decoration board and packaging box board manufactured by domestic garbage |
| CN105272013A (en) * | 2015-11-03 | 2016-01-27 | 陶祖岐 | Heat-insulation and sound-isolation building block manufactured by domestic garbage |
| CN105272112A (en) * | 2015-11-03 | 2016-01-27 | 陶祖岐 | Inner wall board manufactured by domestic garbage |
| CN105415719A (en) * | 2015-11-03 | 2016-03-23 | 陶祖岐 | Building template made from household garbage |
| CN106831011A (en) * | 2017-01-16 | 2017-06-13 | 华伟 | The technique that house refuse prepares organic fertilizer with damp and hot solution |
| CN106866285A (en) * | 2017-04-11 | 2017-06-20 | 山东博华高效生态农业科技有限公司 | A kind of preparation method of the bio-feritlizer containing ginkgo leaf |
| CN108822916A (en) * | 2018-06-15 | 2018-11-16 | 苏州草宝能源科技有限公司 | A kind of processing method of house refuse |
| CN110372433A (en) * | 2019-06-14 | 2019-10-25 | 天津科技大学 | A kind of Fruit quality solid waste is quickly reduced the methods and applications of resource utilization |
| CN110759756A (en) * | 2019-10-23 | 2020-02-07 | 上海臻漫环保设备有限公司 | Wet waste treatment method and system |
-
2000
- 2000-07-13 CN CN00120763A patent/CN1334152A/en active Pending
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328227C (en) * | 2002-08-27 | 2007-07-25 | 王和勋 | Process for preparing composite organic fertilizer life garbage in urban area |
| CN101713304B (en) * | 2009-09-30 | 2013-05-29 | 陈小刚 | Method for cycle power generation by carrying out wet decomposition pretreatment, dry distillation and gasification on domestic garbage |
| CN101869904A (en) * | 2010-06-13 | 2010-10-27 | 烟台润达垃圾处理环保股份有限公司 | Hydrothermal degradation comprehensive processing technology for domestic garbage |
| CN102211105A (en) * | 2011-01-27 | 2011-10-12 | 中国科学院力学研究所 | Household garbage preprocessing process used for plasma gasification generating |
| CN102240661A (en) * | 2011-05-16 | 2011-11-16 | 云南天远生态环保科技有限责任公司 | Pretreatment method and equipment for household garbage |
| CN103804035A (en) * | 2012-11-09 | 2014-05-21 | 北京机电院高技术股份有限公司 | Food waste composting pre-treatment method |
| CN103804035B (en) * | 2012-11-09 | 2015-09-16 | 北京京城环保股份有限公司 | A kind of for the pretreated method of kitchen waste compost |
| CN103480629A (en) * | 2013-09-11 | 2014-01-01 | 同济大学 | Microwave hydrothermal deoiling method for food waste solid-phase |
| CN103480629B (en) * | 2013-09-11 | 2015-10-21 | 同济大学 | The method of the damp and hot de-oiling of a kind of changing food waste solid phase microwave |
| CN105272013A (en) * | 2015-11-03 | 2016-01-27 | 陶祖岐 | Heat-insulation and sound-isolation building block manufactured by domestic garbage |
| CN105271935A (en) * | 2015-11-03 | 2016-01-27 | 陶祖岐 | Decoration board and packaging box board manufactured by domestic garbage |
| CN105272112A (en) * | 2015-11-03 | 2016-01-27 | 陶祖岐 | Inner wall board manufactured by domestic garbage |
| CN105415719A (en) * | 2015-11-03 | 2016-03-23 | 陶祖岐 | Building template made from household garbage |
| CN105272013B (en) * | 2015-11-03 | 2017-05-24 | 陶祖岐 | Heat-insulation and sound-isolation building block manufactured by domestic garbage |
| CN105272112B (en) * | 2015-11-03 | 2017-06-23 | 陶祖岐 | The lining that a kind of house refuse is made |
| CN105271935B (en) * | 2015-11-03 | 2017-06-30 | 陶祖岐 | Decorative panel and packaging boxboard that a kind of house refuse is made |
| CN106831011A (en) * | 2017-01-16 | 2017-06-13 | 华伟 | The technique that house refuse prepares organic fertilizer with damp and hot solution |
| CN106866285A (en) * | 2017-04-11 | 2017-06-20 | 山东博华高效生态农业科技有限公司 | A kind of preparation method of the bio-feritlizer containing ginkgo leaf |
| CN108822916A (en) * | 2018-06-15 | 2018-11-16 | 苏州草宝能源科技有限公司 | A kind of processing method of house refuse |
| CN110372433A (en) * | 2019-06-14 | 2019-10-25 | 天津科技大学 | A kind of Fruit quality solid waste is quickly reduced the methods and applications of resource utilization |
| CN110759756A (en) * | 2019-10-23 | 2020-02-07 | 上海臻漫环保设备有限公司 | Wet waste treatment method and system |
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