CN102390099A - Method for recovering thin and light plastics from domestic garbage - Google Patents

Method for recovering thin and light plastics from domestic garbage Download PDF

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Publication number
CN102390099A
CN102390099A CN2011103461044A CN201110346104A CN102390099A CN 102390099 A CN102390099 A CN 102390099A CN 2011103461044 A CN2011103461044 A CN 2011103461044A CN 201110346104 A CN201110346104 A CN 201110346104A CN 102390099 A CN102390099 A CN 102390099A
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CN
China
Prior art keywords
house refuse
reclaims
plastics
frivolous
discharging opening
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Pending
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CN2011103461044A
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Chinese (zh)
Inventor
吕惠仁
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CAO JUNLANG
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CAO JUNLANG
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Priority to CN2011103461044A priority Critical patent/CN102390099A/en
Publication of CN102390099A publication Critical patent/CN102390099A/en
Pending legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/62Plastics recycling; Rubber recycling

Abstract

The invention discloses a method for recovering thin and light plastics from domestic garbage. The method comprises the following steps: 101) the domestic garbage is delivered into a bag breaker, the bag breaker breaks plastic bags filled with the domestic garbage, and the broken plastic sheets are separated from the domestic garbage through air separation; 102) a crusher crushes the plastic sheets obtained from the step 101, sundries adhered to the plastic sheets are separated from the plastic sheets through colliding and kneading of the crusher, and the crushed plastic sheets are separated from the sundries again through air separation. Through breaking, crushing and twice air-separating, the thin and light plastics and the sundries in the domestic garbage can be separated effectively, the cleanliness of the thin and light plastics can be reach more than 94 percent, and the thin and light plastics can directly serve as main raw materials of wood/ plastics composites. The method is not needed to be washed by water, so that not only is a great quantity of manpower saved, but also a large number of water resources can be saved.

Description

A kind of method that from house refuse, reclaims frivolous plastics
[technical field]
The present invention relates to waste plastic and reclaim, relate in particular to a kind of method that from house refuse, reclaims frivolous plastics.
[background technology]
White pollution is a kind of vivid appellations of people to the plastic garbage contaminated environment phenomenon of difficult degradation.It is meant that all kinds of household plastic goods of processing with macromolecular compounds such as polystyrene, polypropylene, polyvinyl chloride use the back to be thrown aside and become solid waste, throws out without care owing to arbitrarily throw out without care, is difficult to degradation treatment, so that causes the phenomenon of urban and rural environment severe contamination.
The main source of white pollution has frivolous plastics such as packaging for foodstuff, foamed plastics packing, mess-tin, agricultural mulching.
China is one of ten big plastic products production and consumption states in the world, and white pollution is serious day by day.But; Everybody has been accustomed to using polybag, and polybag has almost become necessity in life, does not have economical and practical substitute at present again; Mould so in people's daily life, can only limit to mould to prohibit, contain a large amount of frivolous plastics in the house refuse inevitably.
It is to handle with the mode of landfill or burning that processing contains the traditional method of waste or used plastics rubbish.Burning can produce a large amount of toxic gases and cause secondary pollution.Landfill can take than large space; The plastics natural degradation needs more than a century; Separate out additive contaminated soil and underground water etc.
Because petroleum resources reduce day by day, the house refuse that contains frivolous plastics also is a kind of available resource.The Treatment of Waste Plastics Developing Trend in Technology is to recycle, and the house refuse go-on-go is utilized in 12 planning and requires to reach more than 80%, and wherein frivolous plastics are least tractable difficult problems.Contain the discarded frivolous plastics about 9%~13% in the domestic waste at present, foreign material are housed in the frivolous polybag mostly, be difficult to direct utilization.The destructor plant of 1 day output 1 kiloton, in the rubbish just there being about 100 tons discarded frivolous plastics, calculates by one day frivolous plastics of go-on-go 100-200kg of 1 people. need to be equipped with 500 to 1000 manual works.
Present domestic rubbish disposal factory adopts the frivolous plastics of separating washing to cause the secondary pollution of water resource, but owing to frivolous amount of plastic in house refuse is bigger, needs very big water treatment system.Promptly be with washing, also be difficult to separate the rubbish in the plastics clean.Degree of purity also only can reach about 93%, and has wasted great amount of water resources.
[summary of the invention]
The technical problem that the present invention will solve provides a kind of artificial less, method that from house refuse, reclaims frivolous plastics that can the conserve water resource that consumes.
In order to solve the problems of the technologies described above, the technical scheme that the present invention adopts is that a kind of method that from house refuse, reclaims frivolous plastics may further comprise the steps:
101) house refuse is imported bag-breaking machine, bag-breaking machine is broken with the polybag in the house refuse, utilizes selection by winnowing that the plastic sheet of fragmentation is separated with rubbish;
102) plastic sheet that with pulverizer step 101 is obtained is pulverized, and the collision through pulverizer, rubs and throw off with plastic sheet being bonded at above the plastic sheet foreign material, utilizes selection by winnowing to realize the separating once more of plastic sheet and foreign material after the pulverizing.
The above-described method that from house refuse, reclaims frivolous plastics; Described bag-breaking machine comprises frame, operator dish and assists cutterhead; The bag-breaking machine frame comprises guard shield; Described guard shield comprises charging aperture and discharging opening, the operator dish and assist cutterhead respectively comprise cutter shaft be installed in a plurality of circular saw serrated knives on the cutter shaft, the circular saw serrated knife of operator dish and the circular saw serrated knife of auxiliary cutterhead be interlaced arrangement vertically; The linear velocity of operator dish serrated knife is greater than the linear velocity of auxiliary cutterhead serrated knife.
The above-described method that from house refuse, reclaims frivolous plastics, operator dish and assist the radially interlock each other of circular saw serrated knife of cutterhead; The sawtooth direction of cutterhead is towards discharging opening, and the sawtooth direction of auxiliary cutterhead is discharging opening dorsad.
The above-described method that from house refuse, reclaims frivolous plastics, the cutter shaft of operator dish is a driving shaft, the cutter shaft of operator dish drives the cutter shaft rotation of auxiliary cutterhead through deceleration device; The linear velocity of operator dish serrated knife be 500-1000 rice/minute, the linear velocity of auxiliary cutterhead serrated knife be 200-500 rice/minute
The above-described method that from house refuse, reclaims frivolous plastics, described bag-breaking machine comprises airduct, and described discharging opening comprises the sorting pipe, and sorting pipe middle part comprises that downward rubbish mouth, the front portion of sorting pipe comprise the plastic sheet outlet; The air outlet of airduct is arranged in the sorting pipe, is positioned at the rear of sorting pipe rubbish mouth, and the air outlet of airduct is towards the plastic sheet outlet of sorting pipe.
The above-described method that from house refuse, reclaims frivolous plastics; Described pulverizer is the pulverizer of axial-flow type, comprises the pulverizing unit of frame, main shaft and a plurality of axial-flow type, and described frame comprises casing; Described casing comprises spout and discharging opening; Through the bearing supporting, the pulverizing unit of described a plurality of axial-flow type is disposed axially between the spout and discharging opening of chassis cavity, by main shaft drives along main shaft described main shaft by frame.
The above-described method that from house refuse, reclaims frivolous plastics, each is pulverized the unit and comprises rotary head and fixation cutter head; Described rotary head is fixed on the main shaft, and by the main shaft driven rotary, described rotary head comprises a plurality of fan blade and a plurality of fly cutter, and described fly cutter is fixed on the fan blade, towards fixation cutter head; Described fixation cutter head is fixed in the casing, and described fixation cutter head comprises a plurality of flow deflectors and a plurality of stationary knife, and described stationary knife is fixed on the described flow deflector, towards rotary head.
The above-described method that from house refuse, reclaims frivolous plastics, the pulverizing unit of axial-flow type are 3-5, and each pulverizes the fixation cutter head of unit near spout, and rotary head is near discharging opening.
The above-described method that from house refuse, reclaims frivolous plastics, the angle with flow deflector and rotary head Plane of rotation of said fan blade is 15-30 °; The anterior angle of fly cutter and stationary knife is 15-25 °, and the basil is 25-40 °, and relief angle is 30-45 °.
The above-described method that from house refuse, reclaims frivolous plastics, described discharging opening comprises air separation tube, the air separation tube middle part comprises that downward rubbish mouth, the rear end of air separation tube comprise the plastic flakes outlet.
The present invention through broken, pulverize and twice selection by winnowing, can realize effectively that the frivolous plastics in the rubbish separate with foreign material, the cleanliness factor of frivolous plastics all can reach more than 94%, the plastics that obtain after the pulverizing can be directly as the primary raw material of wood plastic composite; The present invention need not washing, has not only saved a large amount of manual works, can also save great lot of water resources.
[description of drawings]
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further detailed explanation.
Fig. 1 is the present invention reclaims the method embodiment bag-breaking machine of frivolous plastics from house refuse a structural representation.
Fig. 2 is that A among Fig. 1 is to cutaway view.
Fig. 3 is the present invention reclaims the method embodiment pulverizer of frivolous plastics from house refuse a structural representation.
Fig. 4 is the present invention reclaims the method embodiment pulverizer fixation cutter head of frivolous plastics from house refuse a front view.
Fig. 5 is that the B of Fig. 4 is to profile.
Fig. 6 is the present invention reclaims the method embodiment pulverizer rotary head of frivolous plastics from house refuse a front view.
Fig. 7 is the present invention reclaims the method embodiment pulverizer rotary head of frivolous plastics from house refuse a vertical view.
Fig. 8 is that the present invention reclaims the method embodiment pulverizer rotary head fan blade of frivolous plastics and the structure chart of fly cutter from house refuse.
[specific embodiment]
Fig. 1, bag-breaking machine shown in Figure 2 comprise rack-mounted guard shield 1, operator dish 2 and auxiliary cutterhead 3; Operator dish 2 comprises cutter shaft 201 and is fixed on a plurality of circular saw serrated knives 202 on the cutter shaft 201, separates with spacer ring 203 between a plurality of circular saw serrated knives 202 on the cutter shaft 201; Auxiliary cutterhead 3 comprises cutter shaft 301 and is fixed on a plurality of circular saw serrated knives 302 on the cutter shaft 301, separates with spacer ring 303 between a plurality of circular saw serrated knives 302 on the cutter shaft 301.
The cutter shaft 301 of the cutter shaft 201 of operator dish 2, auxiliary cutterhead 3 is installed on the frame through bearing 4 respectively.
The circular saw serrated knife 202 of operator dish 2 and the circular saw serrated knife 302 of auxiliary cutterhead 3 be interlaced arrangement vertically, radially is interlocked each other.
The cutter shaft 201 of operator dish 2 is a driving shaft, and the spindle nose of cutter shaft 201 is equipped with drive pulley 5; The cutter shaft of operator dish 2 rotates through the cutter shaft that train of reduction gears 6 drives auxiliary cutterhead 3, and the linear velocity that 2 serrated knife 202 are coiled in operator is 800 meters/minute, and the linear velocity of auxiliary cutterhead 3 serrated knife 302 is 300 meters/minute.
Two cutterhead sawtooth towards difference.The sawtooth direction of operator dish 2 is towards discharging opening, and the sawtooth direction of auxiliary cutterhead 3 is discharging opening dorsad.
There is sorting pipe 101 at the discharging opening position, and there is downward rubbish mouth 102 at sorting pipe 101 middle parts, and the front portion of sorting pipe 101 is plastic sheet outlets 103.
Charging rubbish conveyer belt 6 is arranged in the charging aperture position of guard shield 1, and rubbish conveyer belt 7 is arranged in the below of rubbish mouth 102.
Airduct 8 is housed in the sorting pipe 101, and the air outlet 801 of airduct 8 is arranged in the sorting pipe 101, is positioned at the rear of sorting pipe rubbish mouth 102, and the air outlet 801 of airduct is towards the plastic sheet outlet 103 of sorting pipe 101.
The discarded frivolous polybag that contains foreign material gets into the charging aperture of guard shield 1 through charging rubbish conveyer belt 6; Because the linear velocity that the linear velocity of 2 serrated knife 202 is higher than auxiliary cutterhead 3 serrated knife 302 is coiled in operator; Both have strong pullling and dissection to discarded frivolous polybag; To discard frivolous polybag and discerp or shred, and coil in operator under the drive of 2 serrated knife 202, plastic sheets of discerping and the rubbish foreign material of separating are dished out to sorting pipe 101 directions.The air-flow that the air outlet 801 of airduct blows out exports 103 with the plastic sheet that frivolous plastic sheet blows to sorting pipe 101, and heavier rubbish foreign material are then fallen on the rubbish conveyer belt 7 from rubbish mouth 102.Thereby the frivolous plastic sheet that will discerp separates with the rubbish foreign material automatically.
The frivolous plastic flakes that processing obtains through bag-breaking machine also need pass through the axial-flow type pulverizer and carry out the processing second time.
The structure of waste plastic bag fragment axial-flow type pulverizer such as Fig. 3 are to shown in Figure 8; The pulverizing unit that comprises rack-mounted casing 11, main shaft 12 and 3 axial-flow type; Casing 11 comprises spout 1101 and discharging opening; Main shaft 12 is bearing on the casing 11 through fore bearing 18 and rear bearing 19, and the front end of main shaft 12 is driven by belt pulley 17.The pulverizing unit of 3 axial-flow type is arranged between the spout 1101 and discharging opening of casing 11 inner chambers along the axial front and back of main shaft 12, and is driven by main shaft 2.
Each is pulverized the unit and comprises rotary head 15 and fixation cutter head 16.Rotary head 15 is fixed on the main shaft 12 through flat key 1201, by main shaft 12 driven rotary.
Rotary head 15 comprises 3 fan blade 1501 and 3 fly cuttves 1502, and 3 screws of fly cutter 1502 usefulness are fixed on the fan blade 1501, and blade is towards fixation cutter head 16.
Fixation cutter head 16 is fixed on through outer shroud 1603 in the inner chamber of casing 11, and fixation cutter head 16 comprises 3 flow deflectors 1601 and 3 stationary knifes 1602, and 3 screws of stationary knife 1602 usefulness are fixed on the flow deflector 1601, and blade is towards rotary head 15.
Each fixation cutter head 6 of pulverizing the unit is installed in the front, and near spout 1101, rotary head 15 is installed in the back, near discharging opening 1102.
Flow deflector fan blade 1501 and fixation cutter head 1601 of rotary head is 20 ° with the angle of rotary head 15 Plane of rotations.
The anterior angle of fly cutter 1502 and stationary knife 1602 is 20 °, and the basil is 30 °, and relief angle is 40 °.
Discharging opening comprises airduct 1102, and the airduct middle part has downward rubbish mouth 1103, the rear end of airduct that plastic flakes outlet 1104 is arranged.
It is 3 that the axial-flow type of present embodiment is pulverized the unit, can be 3-5 or more, and it is many more to pulverize the unit, and frivolous polybag fragment is pulverized carefully more.
The waste plastic bag fragment drops into from the spout 1101 of pulverizer; Because the swabbing action that 3 fan blade of rotary head produce; The polybag fragment of feeding gets into the pulverizing unit of axial-flow type; Pulverizing unit through a plurality of axial-flow type collides, rubs and shear, and not only can frivolous polybag fragment be crushed to 2 millimeter, and can the rubbish foreign material that be bonded at plastic flakes be separated; The rubbish foreign material are because heavier, and downward rubbish mouth 1103 falls from the airduct middle part, and lighter plastic flakes blows out from the rear end plastic flakes outlet 1104 of airduct.The cleanliness factor of the plastics particle of handling well all can reach more than 94%, can directly be used as the raw material of wood plastic composite.
The above embodiment of the present invention can adopt mechanized fully, saves great deal of labor; Utilize machinery fragmentation, collide, rub, shearing separates available plastics with selection by winnowing with the rubbish foreign material, do not need washing, can reduce the investment of garbage disposal historical relics water treatment system, reduce environmental pollution, avoid the waste of water resource.

Claims (10)

1. a method that from house refuse, reclaims frivolous plastics is characterized in that, may further comprise the steps:
101) house refuse is imported bag-breaking machine, bag-breaking machine is broken with the polybag in the house refuse, utilizes selection by winnowing that the plastic sheet of fragmentation is separated with rubbish;
102) plastic sheet that with pulverizer step 101 is obtained is pulverized, and the collision through pulverizer, rubs and throw off with plastic sheet being bonded at above the plastic sheet foreign material, utilizes selection by winnowing to realize the separating once more of plastic sheet and foreign material after the pulverizing.
2. the method that from house refuse, reclaims frivolous plastics according to claim 1; It is characterized in that; Described bag-breaking machine comprises frame, operator dish and assists cutterhead, and the bag-breaking machine frame comprises guard shield, and described guard shield comprises charging aperture and discharging opening; The operator dish and assist cutterhead respectively comprise cutter shaft be installed in a plurality of circular saw serrated knives on the cutter shaft, the circular saw serrated knife of operator dish and the circular saw serrated knife of auxiliary cutterhead be interlaced arrangement vertically; The linear velocity of operator dish serrated knife is greater than the linear velocity of auxiliary cutterhead serrated knife.
3. the method that from house refuse, reclaims frivolous plastics according to claim 2 is characterized in that, operator dish and assist the radially interlock each other of circular saw serrated knife of cutterhead; The sawtooth direction of cutterhead is towards discharging opening, and the sawtooth direction of auxiliary cutterhead is discharging opening dorsad.
4. the method that from house refuse, reclaims frivolous plastics according to claim 2 is characterized in that the cutter shaft of operator dish is a driving shaft, and the cutter shaft of operator dish drives the cutter shaft rotation of auxiliary cutterhead through deceleration device; The linear velocity of operator dish serrated knife be 500-1000 rice/minute, the linear velocity of auxiliary cutterhead serrated knife be 200-500 rice/minute
5. the method that from house refuse, reclaims frivolous plastics according to claim 2; It is characterized in that described bag-breaking machine comprises airduct, described discharging opening comprises the sorting pipe; Sorting pipe middle part comprises that downward rubbish mouth, the front portion of sorting pipe comprise the plastic sheet outlet; The air outlet of airduct is arranged in the sorting pipe, is positioned at the rear of sorting pipe rubbish mouth, and the air outlet of airduct is towards the plastic sheet outlet of sorting pipe.
6. the method that from house refuse, reclaims frivolous plastics according to claim 1 is characterized in that described pulverizer is the pulverizer of axial-flow type; The pulverizing unit that comprises frame, main shaft and a plurality of axial-flow type; Described frame comprises casing, and described casing comprises spout and discharging opening, and described main shaft is supported through bearing by frame; The pulverizing unit of described a plurality of axial-flow type is disposed axially between the spout and discharging opening of chassis cavity, by main shaft drives along main shaft.
7. the method that from house refuse, reclaims frivolous plastics according to claim 6 is characterized in that, each is pulverized the unit and comprises rotary head and fixation cutter head; Described rotary head is fixed on the main shaft, and by the main shaft driven rotary, described rotary head comprises a plurality of fan blade and a plurality of fly cutter, and described fly cutter is fixed on the fan blade, towards fixation cutter head; Described fixation cutter head is fixed in the casing, and described fixation cutter head comprises a plurality of flow deflectors and a plurality of stationary knife, and described stationary knife is fixed on the described flow deflector, towards rotary head.
8. the method that from house refuse, reclaims frivolous plastics according to claim 6 is characterized in that, the pulverizing unit of axial-flow type is 3-5, and each pulverizes the fixation cutter head of unit near spout, and rotary head is near discharging opening.
9. the method that from house refuse, reclaims frivolous plastics according to claim 6 is characterized in that the angle with flow deflector and rotary head Plane of rotation of said fan blade is 15-30 °; The anterior angle of fly cutter and stationary knife is 15-25 °, and the basil is 25-40 °, and relief angle is 30-45 °.
10. the method that from house refuse, reclaims frivolous plastics according to claim 6 is characterized in that described discharging opening comprises air separation tube, and the air separation tube middle part comprises that downward rubbish mouth, the rear end of air separation tube comprise the plastic flakes outlet.
CN2011103461044A 2011-11-04 2011-11-04 Method for recovering thin and light plastics from domestic garbage Pending CN102390099A (en)

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CN2011103461044A CN102390099A (en) 2011-11-04 2011-11-04 Method for recovering thin and light plastics from domestic garbage

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Application Number Priority Date Filing Date Title
CN2011103461044A CN102390099A (en) 2011-11-04 2011-11-04 Method for recovering thin and light plastics from domestic garbage

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102671861A (en) * 2012-05-07 2012-09-19 四川川润环保能源科技有限公司 Sorting and separation system for long-strip articles in urban domestic garbage
CN104893339A (en) * 2015-06-12 2015-09-09 汪新民 Wood-plastic composite and preparation method thereof
CN105623291A (en) * 2016-03-29 2016-06-01 吴肖颜 Wood-plastic composite material
CN106863645A (en) * 2015-04-09 2017-06-20 武汉蓝格包装材料有限公司 A kind of Sound-proof material waste recovery technique
CN111038807A (en) * 2019-12-30 2020-04-21 苏州嘉诺环境工程有限公司 Unpacking device
CN111331758A (en) * 2020-04-28 2020-06-26 付科枝 Biodegradable foamed plastic lunch box degradation pretreatment device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1061739A (en) * 1990-11-28 1992-06-10 徐五亨 Discarded plastic cement skin separates method and the device that reclaims
CN1136473A (en) * 1996-02-07 1996-11-27 山西晓山利达化工有限公司 Double roller hydraulic crusher for waste tyre
CN2294113Y (en) * 1997-04-07 1998-10-14 吕清源 Universal disintegrating machine
CN201419110Y (en) * 2009-04-14 2010-03-10 郑州正旺科贸有限公司 Air separation disintegrator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1061739A (en) * 1990-11-28 1992-06-10 徐五亨 Discarded plastic cement skin separates method and the device that reclaims
CN1136473A (en) * 1996-02-07 1996-11-27 山西晓山利达化工有限公司 Double roller hydraulic crusher for waste tyre
CN2294113Y (en) * 1997-04-07 1998-10-14 吕清源 Universal disintegrating machine
CN201419110Y (en) * 2009-04-14 2010-03-10 郑州正旺科贸有限公司 Air separation disintegrator

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102671861A (en) * 2012-05-07 2012-09-19 四川川润环保能源科技有限公司 Sorting and separation system for long-strip articles in urban domestic garbage
CN102671861B (en) * 2012-05-07 2014-12-24 四川川润环保能源科技有限公司 Sorting and separation system for long-strip articles in urban domestic garbage
CN106863645A (en) * 2015-04-09 2017-06-20 武汉蓝格包装材料有限公司 A kind of Sound-proof material waste recovery technique
CN106863645B (en) * 2015-04-09 2019-04-02 武汉蓝格包装材料有限公司 A kind of sound-proof material waste recovery technique
CN104893339A (en) * 2015-06-12 2015-09-09 汪新民 Wood-plastic composite and preparation method thereof
CN105623291A (en) * 2016-03-29 2016-06-01 吴肖颜 Wood-plastic composite material
CN111038807A (en) * 2019-12-30 2020-04-21 苏州嘉诺环境工程有限公司 Unpacking device
CN111331758A (en) * 2020-04-28 2020-06-26 付科枝 Biodegradable foamed plastic lunch box degradation pretreatment device

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