CN102896137B - Wet separation technology of municipal wet waste - Google Patents
Wet separation technology of municipal wet waste Download PDFInfo
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- CN102896137B CN102896137B CN201210380098.9A CN201210380098A CN102896137B CN 102896137 B CN102896137 B CN 102896137B CN 201210380098 A CN201210380098 A CN 201210380098A CN 102896137 B CN102896137 B CN 102896137B
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- wet
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- waste liquid
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- 239000002699 waste material Substances 0.000 title claims abstract description 21
- 238000005516 engineering process Methods 0.000 title abstract description 8
- 238000000926 separation method Methods 0.000 title abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000002351 wastewater Substances 0.000 claims abstract description 7
- 239000010970 precious metal Substances 0.000 claims abstract description 4
- 239000010813 municipal solid waste Substances 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 16
- 239000002245 particle Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 11
- 239000005416 organic matter Substances 0.000 claims description 9
- 229910010272 inorganic material Inorganic materials 0.000 claims description 6
- 239000011147 inorganic material Substances 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 5
- 238000011010 flushing procedure Methods 0.000 claims description 5
- 239000004519 grease Substances 0.000 claims description 5
- 239000006148 magnetic separator Substances 0.000 claims description 5
- 230000003534 oscillatory effect Effects 0.000 claims description 5
- 238000011084 recovery Methods 0.000 claims description 4
- 230000015556 catabolic process Effects 0.000 claims description 3
- 238000006731 degradation reaction Methods 0.000 claims description 3
- 238000013467 fragmentation Methods 0.000 claims description 3
- 238000006062 fragmentation reaction Methods 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 239000004033 plastic Substances 0.000 abstract description 8
- 229920003023 plastic Polymers 0.000 abstract description 8
- 239000005060 rubber Substances 0.000 abstract description 6
- 238000004064 recycling Methods 0.000 abstract description 4
- 239000004753 textile Substances 0.000 abstract description 3
- 239000002023 wood Substances 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 abstract 1
- 239000010954 inorganic particle Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 abstract 1
- 239000010893 paper waste Substances 0.000 abstract 1
- 239000011449 brick Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000010791 domestic waste Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 108020004638 Circular DNA Proteins 0.000 description 1
- 108020004414 DNA Proteins 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 239000010794 food waste Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/78—Recycling of wood or furniture waste
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a wet separation technology of municipal wet waste, characterized by: successively removing heavy waste, precious metal, and paper waste from the municipal wet waste; crushing, then adding water to recover floating oil, plastic, rubber, wood, textile and the like according to density, and then removing inorganic particles; purifying to obtain an organic product with good quality; recycling waste water by carrying out biochemical treatment on waste water. According to the invention, the technology disclosed herein has high separation efficiency, follows the principle of volume reduction, innoxious disposal, and recycling, embodies the principles of energy saving and emission reduction and circular economy, and realizes the recycling of the municipal wet waste under a premise of safety and environmental protection.
Description
Technical field
The wet split technique that the present invention relates to a kind of city wet refuse, belongs to refuse classification technical field.
Background technology
From 2011, Shanghai City came into effect dry wet the putting on by classification of domestic waste, and the big cities such as Beijing, Guangzhou adopt this mode classification successively.City wet refuse mainly refers to the compositions such as the remaining and dish leaf pericarp of meal in domestic waste, account for the more than 50% of house refuse, than dry rubbish, city wet refuse has that moisture content is high, grease and salt content is high, the easy feature such as putrid and deteriorated, easily causes the environmental pollutions such as air, soil.At present, be still mixed with approximately 10% recyclable component and approximately 10% not recyclable component in the wet refuse of city, wherein callable stationery accounts for 4.65%, and rubber and plastic accounts for 3.57%, and glass accounts for 0.95%, and wooden bamboo accounts for 0.47%, and metal accounts for 0.36%; Expendable lime-ash accounts for 8.26%, and brick and tile pottery accounts for 1.74%.
It is requisite part in the refuse disposal technology such as garbage sanitary filling, anaerobic fermentation and burning electricity generation that refuse classification is processed, organic composition compost or the burnings such as changing food waste that in the wet refuse of city, sub-elect, recyclable component can re-use, and not recyclable component carries out sanitary landfills.Therefore, refuse classification is processed and not only wet refuse is subtracted to appearance, and improves recovery utilization rate and the resource efficiency of rubbish, meets national economic development demand.
The complicated of city wet refuse is various, and distribution of sizes scope is larger, adopts separately efficiency and the effect of selection by winnowing and spring sorting all undesirable, and operation troubles is many, and energy consumption is higher.In wet refuse, contain that kitchen is remaining, the organic component of the stickiness such as dish leaf pericarp and grease, adopt rotary screen sorting, easily stop up screen cloth, cause refuse classification decrease in efficiency.Adopt artificial separation, not only efficiency is lower, and foul gas and the noxious material serious harm workers ' health of wet refuse generation.In sum, existing sorting technology can not meet city wet refuse sorting process demand.
Summary of the invention
Technical problem to be solved by this invention is, for the deficiencies in the prior art, to provide the wet split technique of a kind of city wet refuse.
In order to achieve the above object, the invention provides the wet split technique of a kind of city wet refuse, it is characterized in that, concrete steps are as follows:
The first step: city wet refuse is removed the heavy rubbish (brick and tile, concrete etc.) of bulk through oscillatory type belt conveyor, through magnetic separator, reclaim the precious metal in rubbish, through winnowing machine selection by winnowing, reclaim the stationery in rubbish, then through shear crusher, size length and width or the particle diameter of rubbish each component are reduced to 40-50mm;
Second step: the wet refuse after fragmentation in the first step is transported to oil interceptor, in oil interceptor, adding weight is the flushing water of 15 ~ 20 times of wet refuse, oil baffle is wiped the grease on waste liquid surface off, then waste liquid is transported to floation tank by pump, density ratio water I reclaims component (plastics, rubber, wood and textile etc.), and bubbling through the water column is recovered; Meanwhile, the particles of inorganic material that particle diameter is larger is removed because sinking to oil interceptor and floation tank bottom;
The 3rd step: remaining waste liquid in second step is transported to waterpower disintegrator, fully organic component size length and width or the particle diameter after size degradation is less than 20mm, via hole diameter is that the screen cloth of 20mm reclaims oversize (plastics, rubber etc.), then removes the less particles of inorganic material of particle diameter in waste liquid through HC Cleaner;
The 4th step: the waste liquid after purifying in the 3rd step is formed to the organic matter products that moisture content is less than 10% through decker, pressafiner;
The 5th step: by waste water reuse after biochemical treatment that in the 4th step, decker, pressafiner produce;
The 6th step: by sanitary landfills after the inorganic matter garbage-compressing packing of reclaiming at oil interceptor, floation tank and HC Cleaner.
Compare with existing sorting technology, adopt the efficiency of separation of sorting new technology of the present invention higher, the separated and recovery preferably of the recyclable component in wet refuse, not recyclable component and organic component, the component sub-electing is impure less, comparatively pure.The fuel value of the organic matter fuel that the organic matter products that wet split goes out forms through granulation obviously improves, through the fertilizer efficiency enhancing of fermenting and producing fertilizer; The organic matter adulterating in the inorganic matter that wet split goes out reduces, and during sanitary landfills, garbage filter liquid measure significantly reduces, and has reduced the harm of poisonous and harmful composition to environment; The recoverable material relative clean that wet split goes out, recovery utilization rate is higher.
The wet split technique of a kind of city provided by the invention wet refuse has the higher efficiency of separation, follow the principle of " subtracting appearanceization, innoxious, resource ", embody the principle of energy-saving and emission-reduction and recycling economy, under the prerequisite of safety and environmental protection, realize the resource of city wet refuse.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, patent of the present invention is further described.
Fig. 1 is the process chart of the wet split technique of a kind of city provided by the invention wet refuse.
In figure: 1-oscillatory type belt conveyor, 2-magnetic separator, 3-winnowing machine, 4-shear crusher, 5-oil interceptor, 6-floation tank, 7-waterpower disintegrator, 8-screen cloth, 9-HC Cleaner, 10-decker, 11-pressafiner, 12-biochemical treatment of wastewater.
The specific embodiment
For the present invention is become apparent, hereby with preferred embodiment, and coordinate accompanying drawing to be described in detail below.
The equipment of selecting in the present invention is commercial goods, and concrete type selecting is as follows: oscillatory type belt conveyor, and model: TY-ZS-1, is produced by Shen county of Shandong Tian Yi plastic cement Co., Ltd; Magnetic separator, model: TY-ZX-1, is produced by Shen county of Shandong Tian Yi plastic cement Co., Ltd; Winnowing machine, model: TBH-ZYFX-40, is produced by Tinajin Baili Yangguang Environment Protection Equipment Co., Ltd.; Shear crusher, model: TBH-GLPS-J-200/600, is produced by Tinajin Baili Yangguang Environment Protection Equipment Co., Ltd.; Hydrabrusher, model: DJ-ZDSD5, is produced by Fuyang City Dong Jie papermaking equipment Co., Ltd; HC Cleaner, model: TGC bicone, by Tianli Machine Manufacturing Co., Ltd., Anqiu City, produced; Decker, model: ZNW10, by Weifang, Kechuang Jiang Zhi Engineering Co., Ltd produces; Pressafiner, model: LXY200, protects machinery plant by Changxing people's DNA releaxed circular DNA and produces.
Embodiment 1
As shown in Figure 1, be the process chart of the wet split technique of a kind of city provided by the invention wet refuse, the small-sized wet split demonstration line of processing 10 tons of city wet refuses day of take is example:
The first step: city wet refuse is by 1 continuous feed of oscillatory type belt conveyor, the heavy rubbish such as the brick and tile of removal bulk, concrete, through being placed in the magnetic separator 2 of oscillatory type belt conveyor 1 top, reclaim the precious metal of rubbish, through winnowing machine 3 selection by winnowing, reclaim the stationery in rubbish, then it is long through shear crusher 4, each component of rubbish to be switched to 50mm.
Second step: the wet refuse after fragmentation is transported to oil interceptor 5, in oil interceptor 5, adding weight is the flushing water of 15 times of wet refuse, oil baffle is wiped the grease on waste liquid surface off, then waste liquid is transported to floation tank 6 by pump, the Recyclables such as recycled plastic, rubber, wood and textile.Particles of inorganic material is because sinking to oil interceptor 5 and floation tank 6 bottoms are removed.
The 3rd step: remaining waste liquid is transported to waterpower disintegrator 7, fully after size degradation, full-size length and width or the particle diameter of organic component is 20mm, through screen cloth 8(aperture, be 20mm) oversize such as recycled plastic, rubber, then remove the less particles of inorganic material of particle diameter in waste liquids through HC Cleaner 9.
The 4th step: last, the waste liquid after purifying is formed to organic matter products through decker 10, pressafiner 11.
The 5th step: residue waste water is processed and reclaimed through biochemical treatment of wastewater 12;
The 6th step: by sanitary landfills after the inorganic matter garbage-compressing packing of reclaiming at oil interceptor 5, floation tank 6 and HC Cleaner 9.
The moisture content that obtains organic matter products be 8.9% and doping rate be 3.8%, meanwhile, through sub-electing the doping rate of recyclable component, be 4.5%, the doping rate of inorganic matter component is 2.1%.(note: doping rate represents that wet split goes out the content that contains Other Waste component in certain garbage constitution.）
Embodiment 2
Difference from Example 1 is, through shear crusher 4, each component of rubbish is switched to 40cm long in the first step; In the oil interceptor 5 of second step, adding weight is the flushing water of 20 times of wet refuses.
The moisture content that obtains organic matter products be 9.3% and doping rate be 3.1%, meanwhile, through sub-electing the doping rate of recyclable component, be 4.0%, the doping rate of inorganic matter component is 1.5%.
Embodiment 3
Difference from Example 1 is, through shear crusher 4, each component of rubbish is switched to 45cm long in the first step; In the oil interceptor 5 of second step, adding weight is the flushing water of 18 times of wet refuses.
The moisture content that obtains organic matter products be 9.2% and doping rate be 3.5%, meanwhile, through sub-electing the doping rate of recyclable component, be 4.3%, the doping rate of inorganic matter component is 1.8%.
Claims (1)
1. a city wet refuse wet split technique, is characterized in that, concrete steps are as follows:
The first step: city wet refuse is removed the heavy rubbish of bulk through oscillatory type belt conveyor (1), through magnetic separator (2), reclaim the precious metal in rubbish, through winnowing machine (3) selection by winnowing, reclaim the stationery in rubbish, then through shear crusher (4), size length and width or the particle diameter of rubbish each component are reduced to 40-50mm;
Second step: the wet refuse after fragmentation in the first step is transported to oil interceptor (5), in oil interceptor (5), adding weight is the flushing water of 15 ~ 20 times of wet refuse, oil baffle is wiped the grease on waste liquid surface off, then waste liquid is transported to floation tank (6) by pump, density ratio water I recovery component is bubbled through the water column and is recovered; Meanwhile, the particles of inorganic material that particle diameter is larger is removed because sinking to oil interceptor (5) and floation tank (6) bottom;
The 3rd step: remaining waste liquid in second step is transported to waterpower disintegrator (7), fully organic component size length and width or the particle diameter after size degradation is less than 20mm, via hole diameter is that the screen cloth (8) of 20mm reclaims oversize, then removes the less particles of inorganic material of particle diameter in waste liquid through HC Cleaner (9);
The 4th step: the waste liquid after purifying in the 3rd step is formed to the organic matter products that moisture content is less than 10% through decker (10), pressafiner (11);
The 5th step: by waste water reuse after biochemical treatment that in the 4th step, decker (10), pressafiner (11) produce;
The 6th step: sanitary landfills after the inorganic matter garbage-compressing packing that will reclaim at oil interceptor (5), floation tank (6) and HC Cleaner (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210380098.9A CN102896137B (en) | 2012-10-09 | 2012-10-09 | Wet separation technology of municipal wet waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210380098.9A CN102896137B (en) | 2012-10-09 | 2012-10-09 | Wet separation technology of municipal wet waste |
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| Publication Number | Publication Date |
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| CN102896137A CN102896137A (en) | 2013-01-30 |
| CN102896137B true CN102896137B (en) | 2014-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210380098.9A Active CN102896137B (en) | 2012-10-09 | 2012-10-09 | Wet separation technology of municipal wet waste |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106269811A (en) * | 2016-10-24 | 2017-01-04 | 深圳华云生物科技有限公司 | A kind of wastes pre-processing system that changing food waste is used for insecticide raising and method |
| CN108687117A (en) * | 2018-05-19 | 2018-10-23 | 林广� | A kind of the cycling and reutilization treatment process and processing system of rubbish |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001009422A (en) * | 1999-07-02 | 2001-01-16 | Yamamasa Sangyo Kk | Disposer waste water treatment system |
| CN1445032A (en) * | 2002-07-23 | 2003-10-01 | 邓楚柏 | Harmless method for treating garbage |
| CN101829669A (en) * | 2009-12-02 | 2010-09-15 | 文荣 | Garbage harmless water treating and sorting device |
| CN102357506A (en) * | 2011-08-01 | 2012-02-22 | 牛心红 | Method for wet treatment and resource utilization of household garbage |
-
2012
- 2012-10-09 CN CN201210380098.9A patent/CN102896137B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001009422A (en) * | 1999-07-02 | 2001-01-16 | Yamamasa Sangyo Kk | Disposer waste water treatment system |
| CN1445032A (en) * | 2002-07-23 | 2003-10-01 | 邓楚柏 | Harmless method for treating garbage |
| CN101829669A (en) * | 2009-12-02 | 2010-09-15 | 文荣 | Garbage harmless water treating and sorting device |
| CN102357506A (en) * | 2011-08-01 | 2012-02-22 | 牛心红 | Method for wet treatment and resource utilization of household garbage |
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| CN102896137A (en) | 2013-01-30 |
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