CN104772837A - Plastic bag recovery method and apparatus thereof - Google Patents
Plastic bag recovery method and apparatus thereof Download PDFInfo
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- CN104772837A CN104772837A CN201510139992.0A CN201510139992A CN104772837A CN 104772837 A CN104772837 A CN 104772837A CN 201510139992 A CN201510139992 A CN 201510139992A CN 104772837 A CN104772837 A CN 104772837A
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- Prior art keywords
- polybag
- plastic bag
- plastic
- bag recovery
- recovery method
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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
- Y02W30/62—Plastics recycling; Rubber recycling
Abstract
The invention provides a plastic bag recovery method. The method comprises the following steps: 1, classifying plastic bags according to the colors of the plastic bags; and 2, carrying out hot pressing on the classified plastic bags to obtain thin pancake-shaped plastic bodies. The plastic bags are classified according to the color and undergo hot pressing to form the thin pancake-shaped plastic bodies, so the plastic bags are convenient to collect; the thin pancake-shaped plastic bodies can be directly delivered to plastic production units, so the transportation is convenient, and harms of the plastic bags to ecological environment are greatly reduced; and dyeing is not needed, so the cost of the plastic production units is reduced, and environmental protection and resource saving are realized. The invention also provides a plastic bag recovery apparatus. The apparatus comprises at least two barrel bodies and pressure plates respectively arranged in the barrel bodies and vertically moving in a reciprocating manner, the inner walls of the barrel bodies and the pressure plates are respectively provided with heaters, and the heaters are used for heating the inner walls of the barrel bodies and the lower surfaces of the pressure plates.
Description
Technical field
The present invention relates to plastics recovery field, refer in particular to a kind of plastic bag recovery method and device.
Background technology
Conventional food plastic bag mostly is polyethylene film and makes, and this film is nontoxic, therefore can be used for packing foods.Plastics are a kind of very light materials, just can make its deliquescing, indiscriminately ad. as one wishes make the thing of various shape with very low heating temperatures.Plastic products are bright in luster, lightweight, are not afraid of and fall, economy and durability, and its appearance brings many convenience not only to the life of people, has also greatly promoted industrial expansion.Plastics, while bringing convenience to the life of people, also bring the future trouble being difficult to tidy up to environment.The Stability Analysis of Structures of plastics, is not easily degraded by natural microbial bacterium, does not decompose for a long time in natural environment, even likely all cannot clear up within the time reaching 70 years.This just means that waste plastic garbage is not if reclaimed, and will become pollutant long-term existence in the environment and constantly accumulation, and can cause high risks to environment.
All the time, country all releases a large amount of policy to improve the recovery utilization rate of waste plastics bag, as in " notice using plastic shopping bag is sold by the General Office of the State Council about limit production " of appearance on January 8th, 2008, explicitly points out:
Environmental sanitation department will accelerate to carry out categorized consumer waste and collect and classification process, conscientiously reduces the waste plastics quantity being mixed into waste incineration or landfill.Waste and old material recovery authorities will strengthen the recycling management work to waste plastics; instruct, support that goods and materials returned enterprise establishes and improve recovery site; make full use of lever of price and offer high-quality service wait measure promotion waste plastics recovery; carry forward vigorously scale sorting and classified utilization, give full play to the effectiveness of plastic resource.
Environmental administration will strengthen and utilize the environment of process to supervise to waste plastics recovery, works out environment entry criteria, Environmental capacity standards and guidelines supervising the implementation of, sets up waste plastics from the overall process EMS reclaiming, transport, be stored to regeneration.
The departments of science and technology will strengthen the supporting dynamics to the research and development of Treatment of Waste Plastics disposal technology, and develop and spread improves technology and the product that waste plastics utilizes added value, improves waste plastics level of resource utilization.
Finance, revenue department will study and define the tax policy suppressing waste plastics to pollute as early as possible, utilize taxation lever to regulate and control producing and selling and the use of plastic shopping bag, support, encourage the development of waste plastics comprehensive utilization industry.
Based on this, someone proposes the method for plastic bag recovery, namely hot-extrudable by being carried out by polybag adding, and granulation again, thus polybag can be recycled, reduce the harm of polybag to environment.But this mode has following problem: the color of polybag is different, again granulation need experience to fade, the operation such as dyeing again.This is undoubtedly the significant wastage to resource.
Summary of the invention
The present invention proposes a kind of plastic bag recovery method, in order to solve the problem.
Technical scheme of the present invention is achieved in that
A kind of plastic bag recovery method, comprises the following steps:
(1) classify according to the Color pair polybag of polybag;
(2) sorted polybag is carried out hot pressing, obtain pancake shape plastic body.
Further, before performing step (1), also comprise the first pre-treatment step: polybag to be cleared up, dry, ensure the attachment of plastic bag surface free from admixture.
Further, after executing described first pre-treatment step, perform the second pre-treatment step: roll extrusion polybag, ensure bubble-free in polybag, then perform described step (1).
Further, in described step (2), hot pressing temperature is 60 ~ 150 degrees Celsius.
Further, further comprising the steps of after described step (2): described pancake shape plastic body to be pressed color classification stacking, carry out melt pelletization respectively.
The present invention also provides a kind of plastic bag recovery device, comprise: staving also can make the reciprocating pressing plate of vertical direction with being located in each described staving, described inner wall of barrel and/or described pressing plate are provided with calandria, and described calandria is used for described inner wall of barrel and/or the heating of described pressing plate lower surface.
Further, described staving side is provided with the rolling mechanism for roll extrusion polybag.
Further, described rolling mechanism comprises the upper roller and bottom roller that are correspondingly set up and down, and be configured for the passage that accommodation polybag passes through between described upper roller and described bottom roller, described upper roller and described bottom roller form reverse synchronized driving and be connected.
Further, the flare openings for obtaining polybag is provided with before described rolling mechanism.
Further, described pressing plate one end is connected with cylinder, and described cylinder ejector direction is in vertical.
The invention has the beneficial effects as follows: pass through such scheme, polybag is classified according to color, and carry out being hot pressed into pancake shape, thus convenient collection, multiple pancake shape plastic body directly can be paid plastics-production unit, convenient transport, greatly reduce the harm of polybag to ecological environment, and without the need to dyeing again, reduce the cost of plastics-production unit, more environmental protection and saving resource.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the steps flow chart schematic diagram of a kind of plastic bag recovery method of the present invention embodiment;
Fig. 2 is the planar structure schematic diagram of the device of plastic bag recovery shown in Fig. 1.
In figure, 1 is staving, and 2 is pressing plate, and 21 is cylinder, and 3 is idler wheel mechanism, and 4 is opening.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
A kind of plastic bag recovery method of the present invention shown in Figure 1, comprises the following steps:
S10 classifies according to the Color pair polybag of polybag;
Sorted polybag is carried out hot pressing by S20, obtains pancake shape plastic body.
Plastic bag recovery method in the present embodiment, can be applied to home environment, in other embodiments, also can be applied to the public such as office space, commercial location place.
Perform before step S 10 and also comprise the first pre-treatment step S01: polybag to be cleared up, dry, ensure the attachment of plastic bag surface free from admixture, in order to avoid because impurity produces interference to plastics quality in hot pressing.The present invention does not make restriction to cleaning, dry concrete mode, and the technical scheme that any those skilled in the art understand thoroughly all can use.In certain embodiments, can adopt and utilize water to clean polybag, then by drying unit, polybag be dried.
In hot pressing, the bubble in polybag likely causes hot pressing unstable, even because bubble causes pressing plate to occur damaging.So after execution of step S01, perform the second pre-treatment step S02: roll extrusion polybag, ensure bubble-free in polybag, then perform described step S10.S02 can adopt the mode such as roller, pressure roller to carry out eliminating bubble to polybag, and such change still falls within protection scope of the present invention.
In the present embodiment step S10, polybag is classified according to color, and such as red plastic bags is classified as the first kind, and black plastic bag is classified as Equations of The Second Kind, classifies according to colourity, ensures the purity of polybag color.
In the present embodiment step S20, adopt and be received in container by polybag, press down under the effect of displacable platen to polybag, heat polybag meanwhile, heating-up temperature, between 60 ~ 150 degrees Celsius, preferably, adopts 100 degrees Celsius.Mode of heating can be selected by heating thus the heating completed polybag container and pressing plate.
In other embodiments, also only can heat container or pressing plate merely, thus meet akin hot pressing effect.
Subsequent step S30 is also comprised: by stacking by color classification for described pancake shape plastic body, carry out melt pelletization respectively after described step (2).
Pass through such scheme, polybag is classified according to color, and carry out being hot pressed into pancake shape, thus convenient collection, multiple pancake shape plastic body directly can be paid plastics-production unit, convenient transport, greatly reduces the harm of polybag to environmental protection, and without the need to dyeing again, reduce the cost of plastics-production unit.
The present invention also provides a kind of plastic bag recovery device in order to realize above-mentioned plastic bag recovery method, an embodiment of a kind of retracting device of polybag of the present invention shown in Figure 2, comprise: staving and the pressing plate be located in each described staving, described inner wall of barrel and described pressing plate are provided with calandria, and described calandria is used for described inner wall of barrel and the heating of described pressing plate lower surface.
In other embodiments, also can arrange calandria separately on inner wall of barrel or pressing plate, such structure change still falls within protection scope of the present invention.
Need in order to hold the polybag carrying out hot pressing in staving, pressing plate can vertically move back and forth, and forms pancake shape plastic body in order to press polybag.Preferably, described pressing plate one end is connected with cylinder, and described cylinder ejector direction is in vertical.Cylinder has certain pooling feature, prevents pressing plate from being impacted in decline process.
As the further optimization to the present embodiment, described staving side is provided with the rolling mechanism for roll extrusion polybag, comprises the upper roller and bottom roller that are correspondingly set up and down.Be configured for the passage that accommodation polybag passes through between described upper roller and described bottom roller, described upper roller and described bottom roller form reverse synchronized driving and are connected, and preferably, upper roller connects bottom roller by gear drive, and upper roller also drives and is connected with motor.
The flare openings for obtaining polybag is provided with, for guiding in the accurate dropped channel of polybag before described rolling mechanism.
In working order, polybag enters in idler wheel mechanism through opening, and polybag is flattened after idler wheel mechanism roll extrusion, and enters staving under idler wheel mechanism roll extrusion drives.Now, pressing plate declines under cylinder drives, simultaneously calandria heating, polybag thus melted by heating, forms pancake shape plastic body under pressing plate presses effect simultaneously.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a plastic bag recovery method, is characterized in that, comprises the following steps:
(1) classify according to the Color pair polybag of polybag;
(2) sorted polybag is carried out hot pressing, obtain pancake shape plastic body.
2. a kind of plastic bag recovery method according to claim 1, is characterized in that: also comprise the first pre-treatment step before performing step (1): clear up polybag, dry, ensures the attachment of plastic bag surface free from admixture.
3. a kind of plastic bag recovery method according to claim 2, is characterized in that: after executing described first pre-treatment step, perform the second pre-treatment step: roll extrusion polybag, ensures bubble-free in polybag, then performs described step (1).
4. a kind of plastic bag recovery method according to claim 1, is characterized in that: in described step (2), hot pressing temperature is 60 ~ 150 degrees Celsius.
5. a kind of plastic bag recovery method according to claim 1, is characterized in that: further comprising the steps of after described step (2): by stacking by color classification for described pancake shape plastic body, to carry out melt pelletization respectively.
6. a plastic bag recovery device, it is characterized in that, comprise: staving also can make the reciprocating pressing plate of vertical direction with being located in each described staving, described inner wall of barrel and/or described pressing plate are provided with calandria, and described calandria is used for described inner wall of barrel and/or the heating of described pressing plate lower surface.
7. a kind of plastic bag recovery device according to claim 6, is characterized in that: described staving side is provided with the rolling mechanism for roll extrusion polybag.
8. a kind of plastic bag recovery device according to claim 7, it is characterized in that: described rolling mechanism comprises the upper roller and bottom roller that are correspondingly set up and down, be configured for the passage that accommodation polybag passes through between described upper roller and described bottom roller, described upper roller and described bottom roller form reverse synchronized driving and are connected.
9. a kind of plastic bag recovery device according to claim 8, is characterized in that: be provided with the flare openings for obtaining polybag before described rolling mechanism.
10. a kind of plastic bag recovery device according to claim 6, is characterized in that: described pressing plate one end is connected with cylinder, and described cylinder ejector direction is in vertical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510139992.0A CN104772837A (en) | 2015-03-27 | 2015-03-27 | Plastic bag recovery method and apparatus thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510139992.0A CN104772837A (en) | 2015-03-27 | 2015-03-27 | Plastic bag recovery method and apparatus thereof |
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| CN104772837A true CN104772837A (en) | 2015-07-15 |
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| CN201510139992.0A Pending CN104772837A (en) | 2015-03-27 | 2015-03-27 | Plastic bag recovery method and apparatus thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106966081A (en) * | 2017-05-12 | 2017-07-21 | 北京印刷学院 | A kind of classification retracting device of packaging bag |
| CN107901274A (en) * | 2017-12-27 | 2018-04-13 | 台州金福桂再生资源利用有限公司 | A kind of waste plastic scrapes the pressing slitting device of equipment |
| CN113290741A (en) * | 2021-05-18 | 2021-08-24 | 王琨 | Plastic bag recycling and compressing device and plastic bag recycling process |
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| JP2004306501A (en) * | 2003-04-09 | 2004-11-04 | Muraoka Tekkosho:Kk | Method and apparatus for lumping thermoplastic resin waste |
| JP2005028381A (en) * | 2003-07-09 | 2005-02-03 | Nippon Steel Corp | Instrument for detecting molten metal surface level in mold |
| CN201989262U (en) * | 2010-06-17 | 2011-09-28 | 乔健 | Plastic recycling device |
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2015
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Patent Citations (4)
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| JP2001047008A (en) * | 1999-08-05 | 2001-02-20 | Daiwa Sokuryo Sekkei Kk | Method and apparatus for heating or pressuring treatment of waste |
| JP2004306501A (en) * | 2003-04-09 | 2004-11-04 | Muraoka Tekkosho:Kk | Method and apparatus for lumping thermoplastic resin waste |
| JP2005028381A (en) * | 2003-07-09 | 2005-02-03 | Nippon Steel Corp | Instrument for detecting molten metal surface level in mold |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106966081A (en) * | 2017-05-12 | 2017-07-21 | 北京印刷学院 | A kind of classification retracting device of packaging bag |
| CN106966081B (en) * | 2017-05-12 | 2019-03-29 | 北京印刷学院 | A kind of classification recyclable device of packaging bag |
| CN107901274A (en) * | 2017-12-27 | 2018-04-13 | 台州金福桂再生资源利用有限公司 | A kind of waste plastic scrapes the pressing slitting device of equipment |
| CN113290741A (en) * | 2021-05-18 | 2021-08-24 | 王琨 | Plastic bag recycling and compressing device and plastic bag recycling process |
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Application publication date: 20150715 |