CN118434931A - Quick decomposing system for absorptive article and its operation method - Google Patents

Quick decomposing system for absorptive article and its operation method Download PDF

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Publication number
CN118434931A
CN118434931A CN202280062119.4A CN202280062119A CN118434931A CN 118434931 A CN118434931 A CN 118434931A CN 202280062119 A CN202280062119 A CN 202280062119A CN 118434931 A CN118434931 A CN 118434931A
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China
Prior art keywords
module
raw material
absorbent
waterproof
absorbent article
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CN202280062119.4A
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Chinese (zh)
Inventor
吴倍任
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Yijun Environmental Protection Technology Co ltd
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Yijun Environmental Protection Technology Co ltd
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Priority claimed from PCT/US2022/043905 external-priority patent/WO2023044077A1/en
Publication of CN118434931A publication Critical patent/CN118434931A/en
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  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)

Abstract

The invention discloses a rapid decomposition system of an absorbent article and an operation method thereof. The rapid decomposition system of the absorbent article mainly comprises a cutting separation module, a waterproof reclaimed material screening machine, a recycling module, a salt slurry treatment module, a plastic raw material manufacturing module, a moisture absorption material raw material manufacturing module and a fluff fiber raw material manufacturing module. By the rapid decomposition system for the absorbent articles and the operation method thereof, the recycled absorbent articles can be decomposed into plastic raw materials, moisture absorption material raw materials and fluff fiber raw materials. In addition, the organic pollutants on the absorbent article can be decomposed, purified and recycled to treat water, so that the effect of continuous utilization is achieved.

Description

Quick decomposing system for absorptive article and its operation method
Technical Field
The invention provides a rapid decomposition system for an absorbent article and an operation method thereof, in particular to a rapid decomposition system for an absorbent article, which can decompose and purify organic pollutants on the absorbent article and recover treated water to manufacture fluff fiber raw materials, moisture absorption material raw materials and plastic raw materials, and an operation method thereof.
Background
Absorbent articles such as diapers and sanitary napkins have been widely used in modern life. In users of various age groups, there is a possibility of using the absorbent article according to different demands. With the development of consumer, lifestyle and industrial manufacturing capabilities of people, absorbent articles are increasingly becoming more expensive, lighter, clean and sanitary, and disposable.
For example, a diaper or a nursing pad for long-term use is used, and a skin-friendly nonwoven fabric is mostly used as a material for contacting skin. The middle part is an absorption layer with extremely strong liquid absorption capacity. Finally, the outer layer is a plastic waterproof layer with waterproof capability.
In addition, some diapers and the like having adhesive requirements are attached with fastening tapes having adhesive coatings. And the contact part of the human body under-crossing part is also provided with a three-dimensional sewing design, so that dirt is prevented from leaking from the contact part. When these absorbent articles are used up and discarded, the insult tends to become trapped within the absorbent article. Wherein liquid-like insults are absorbed into the absorbent layer. Finally, the entire wrapped absorbent article may be discarded in a waterproof layer-out form.
As modern society ages, the amount of absorbent articles used by adults increases dramatically. Generally, these used absorbent articles are disposed of with a garbage truck to an incinerator or landfill. However, the above-mentioned absorbent articles are mostly made of chemical materials which are not easily decomposed. In addition, the weight of the used absorbent article is greatly increased due to the ability to absorb liquid, which increases the difficulty in shipping the absorbent sanitary article.
The recycling of the absorbent articles composed of a plurality of different materials and structures is difficult to achieve. In addition, even if recycling is successful, it is difficult to ensure that these materials, which are manufactured after recycling of the absorbent articles, have good chemical or physical properties. Accordingly, there is a need for an absorbent article that can handle such a wide variety of composite materials.
Disclosure of Invention
The present invention solves the problems mentioned in the prior art by providing a rapid absorbent article decomposing system. The rapid decomposition system of the absorbent article mainly comprises a cutting separation module, a waterproof reclaimed material screening machine, a recycling module, a salt slurry treatment module, a plastic raw material manufacturing module, a moisture absorption material raw material manufacturing module and a fluff fiber raw material manufacturing module.
Wherein, this waterproof reclaimed materials sieve separator is connected with this cutting separation module. The recovery module is connected with the cutting separation module and the waterproof recovery screening machine at the same time. The salt slurry processing module is connected with the cutting separation module.
In addition, the plastic raw material manufacturing module is connected with the waterproof reclaimed material screening machine for subsequent treatment. The moisture absorption material raw material manufacturing module is connected with the salt slurry processing module, and the fluff fiber raw material manufacturing module is connected with the salt slurry processing module.
Wherein, the cutting separation module divides at least one waterproof reclaimed material into the waterproof reclaimed material screening machine. The salt slurry treatment module separates at least one absorbent reclaimed material into at least one primary fluff fiber raw material and at least one primary absorbent material raw material, and sequentially distributes the at least one primary fluff fiber raw material to the fluff fiber raw material manufacturing module, and the at least one primary absorbent material raw material to the absorbent material raw material manufacturing module.
In addition, the invention also provides an operation method of the rapid disassembly system of the absorbent article. First, step (a) is performed to provide the aforementioned rapid decomposition system for absorbent articles. And (C) executing the step (B), and placing at least one absorbent article into the cutting and separating module for cutting, separating and crushing. And (C) executing the step of breaking the at least one absorbent article into at least one absorbent recycling material and at least one waterproof recycling material by the cutting and separating module.
Then, according to the classification of the cutting and separating module, sequentially performing the step (D1), the cutting and separating module sending the at least one absorptive reclaimed material to the salt slurry processing module, and performing the step (E1); (D2) The cutting and separating module distributes the at least one waterproof reclaimed material to the waterproof reclaimed material screening machine and executes the step (E2).
Wherein, step (E1) separates the at least one absorbent reclaimed material into the at least one primary fluff fiber raw material and the at least one primary absorbent material raw material by the salt slurry treatment module, and sequentially sends the at least one primary fluff fiber raw material to the fluff fiber raw material manufacturing module, and sends the at least one primary absorbent material raw material to the absorbent material raw material manufacturing module, and then step (F) is performed. And step (E2) is to convey the at least one waterproof reclaimed material to the plastic raw material manufacturing module by the waterproof reclaimed material screening machine and execute step (F).
Finally, executing the step (F), wherein the fluff fiber raw material manufacturing module is used for manufacturing at least one fluff fiber raw material, the moisture absorbing material raw material manufacturing module is used for manufacturing at least one moisture absorbing material raw material, and the plastic raw material manufacturing module is used for manufacturing at least one plastic raw material.
The foregoing has outlined rather broadly the several features of the present invention in order that the detailed description of the invention may be better understood. The summary of the invention is not an extensive overview of the invention, and is intended to neither identify key or critical elements of the invention nor delineate the scope of the invention, but merely to present several concepts of the invention in a simplified manner.
Drawings
FIG. 1 is a schematic diagram of an absorbent article quick-release system according to an embodiment of the present invention.
FIG. 2 is a flow chart of a method of operation of a rapid absorbent article decomposition system according to an embodiment of the present invention.
FIG. 3 is a schematic view of a cut-and-separate module in an embodiment of a rapid absorbent article removal system according to an embodiment of the present invention.
FIG. 4 is a schematic view of a salt slurry treatment module in an embodiment of a rapid absorbent article decomposition system according to an embodiment of the present invention.
Detailed Description
So that the manner in which the above recited features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings.
Referring first to fig. 1, fig. 1 is a schematic diagram of an absorbent article rapid-disassembly system according to an embodiment of the invention. As shown in fig. 1, the rapid absorbent article decomposing system 10 shown in this embodiment is mainly composed of a cut separating module 100, a waterproof reclaimed material screening machine 200, a reclaiming module 300, a salt slurry processing module 400, a plastic raw material manufacturing module 500, a moisture absorbent raw material manufacturing module 600, and a fluff fiber raw material manufacturing module 700. The absorbent article described in this embodiment may be a diaper. Of course, the invention should not be limited to the personal hygiene products such as nursing pad and sanitary napkin.
In this embodiment, the cutting and separating module 100 is mainly used for primarily breaking and separating various material structures of the absorbent article and performing a slurry dispersing operation. Referring to fig. 3, fig. 3 is a schematic view of a cut-and-separate module in an embodiment of a rapid absorbent article separation system according to an embodiment of the present invention. Fig. 3 depicts the internal configuration of the present embodiment cut separation module 100. The dicing module 100 of this embodiment includes a spoiler 11, a rotor 12 and a cutter 13. In this embodiment, the turbulence member 11 is a plurality of plate-like structures, and is disposed in the turbulence member along with the increase of the number, so that the vortex is generated to generate downward pressure on the water flow, and when the cutting and separating module 100 rotates, the waste is not only pressed into the cutter 13 disposed at the bottom of the cutting and separating module 100 by the vortex of the water flow, so that the waste collides with the cutter 13 and is prevented from forming a sphere, but also the breaking and dispersing effects are achieved.
In this embodiment, the cutters 13 are spiral or cutterhead, and are arranged in two symmetrical positions at the bottom of the cutting module 100. The turbulence member 11 is configured in a plurality of plate-like structures and is disposed on the inner wall of the separation module 100 in a manner of being symmetrical to the center of the separation module 100. In the present embodiment, the turbulence members 11 are disposed on the inner wall of the cylinder of the separation module 100 at the same intervals, so that the liquid in the separation module 100 can be kept in a balanced state during rotation. In addition, a rotor 12 is provided inside the cutting and separating module 100. In the present embodiment, the rotor 12 is a vertical rotor connected to a variable frequency motor. The rotor 12 may be configured to directly slit and tear the absorbent articles within the cut separation module 100 for optimal separation and sizing.
In the present embodiment, the cutting and separating module 100 is further provided with a gravity type liquid level control meter, and the water amount is controlled by converting the gravity level. Specifically, when the liquid level reaches the set value, the absorbent article is automatically put into the present embodiment, then the rotor 12 rotates at a preset rotation speed and time, and water is automatically added to the set value after the rotation is stopped. At this time, the plastic sheet, which is initially decomposed and broken, floats on the water surface, and the remaining absorbent articles (including fluff pulp and high-molecular water-absorbing salts) settle and cut the separation module 100 to the bottom of the tank. In order to prevent the released plastic sheets from being easily knotted and rolled into balls, the cutting and separating module 100 is connected with the waterproof recycling screening machine 200, and the plastic sheets are processed through the waterproof recycling screening machine 200.
The waterproof reclaimed material screening machine 200 is designed by slope screening, and liquid naturally flows from high to low in a gravity mode. The liquid with broken absorptive articles flows through the screens with holes of different sizes while flowing, so as to screen out materials required by the subsequent process or filter out impurities interfering with the process.
In addition, the bottom of the waterproof recycling screening machine 200 of this embodiment has a liquid recycling hole. The liquid after screening/sieving can be recovered and recycled. Accordingly, the recycling module 300 of the present embodiment is connected to the cutting and separating module 100 and the waterproof recycling screening machine 200 at the same time. In this manner, the liquid after the separation module 100 and the waterproof recycling material screening machine 200 are dispersed, screened or removed from the absorbent articles can be recovered and purified by the recovery module 300, so as to facilitate recycling of the liquid (e.g., water).
In this embodiment, the recovery module 300 is used to recover the sewage from the waterproof recovery screening machine 200 and the fluff fiber raw material manufacturing module 700; or to cut excess liquid in the separation module 100. The recovery module 300 may be a treatment tank/bucket containing a plurality of carriers. Each support may be a porous structure support such as zeolite, activated carbon, or the like, a filter or framework (Scaffold) for supporting at least one decomposing microorganism. Since the recycling module 300 of the present embodiment is used to recycle the treatment liquid from the absorbent article, it will naturally contain a lot of dirt from the human body attached to the broken absorbent article.
Accordingly, the decomposing microorganism is mainly used for treating organic or inorganic pollutants in the recovered liquid so as to achieve the effect of purifying the recovered liquid. The more clean the recovered liquid is in the cutting separation module 100 and the waterproof recovered material screening machine 200 by the continuous circulation. In addition, the operation performance of the cutting separation module 100 and the waterproof recycling screening machine 200 can be improved.
Next, the salt slurry processing module 400 of the present embodiment is connected to the dicing separation module 100. In this embodiment, the salt slurry treatment module 400 mainly has the effect of performing density layering screening on the crushed absorbent articles treated by the cutting and separating module 100. Specifically, the salt slurry treatment module 400 of the present embodiment receives the absorbent reclaimed material crushed by the cutting and separating module 100. In this example, the absorbent reclaimed material has most of the characteristics of liquid absorption and density. Thus, the absorbent recovery of the present embodiment will naturally settle in the salt slurry treatment module 400 due to the density stratification principle.
In particular, referring to fig. 4, fig. 4 is a schematic view of a salt slurry treatment module in an embodiment of a rapid absorbent article decomposition system according to an embodiment of the present invention. The salt slurry treatment module 400 of this embodiment includes a buffer tank 41, a settling tank 42, and a slurry storage tank 43. Wherein the buffer tank 41 is used for receiving the absorbent reclaimed materials. The settling tank 42 is used to separate the relatively dense at least one primary absorbent material, such as polyacrylate, from the absorbent recovery. Finally, the slurry tank 43 receives at least one primary fluff fiber material of lesser density from the absorbent recovery.
Further, the absorbent material manufacturing module 600 in this embodiment is connected to the salt slurry treatment module 400. The fluff fiber raw material making module 700 is also connected to the salt slurry processing module 400. In this embodiment, the absorbent material manufacturing module 600 is mainly configured to receive at least one primary absorbent material from the settling tank 42. The fluff fiber raw material making module 700 is primarily configured to receive at least one primary fluff fiber raw material of lesser density from the slurry tank 43.
The fluff fiber raw material manufacturing module 700 of this embodiment is mainly composed of a centrifugal pressure inclined screen module 701 and an extruder 702.
Wherein the centrifugal pressure inclined screen module 701 is connected to the stock chest 43 for screening and receiving at least one primary fluff fiber material of lesser density from the stock chest 43. During operation of the centrifugal pressure inclined screen module 701, at least one primary fluff fiber raw material is subjected to a first centrifugation operation. Of the at least one primary fluff fiber raw material, the at least one primary moisture absorbent raw material that is not properly separated by the settling tank 42 has the opportunity to separate from the at least one primary fluff fiber raw material due to centrifugal force in the centrifugal pressure inclined screen module 701 and to be returned to the settling tank 42.
The centrifugal pressure inclined screen module 701 of this embodiment may then further rewet the at least one primary fluff fiber raw material that has undergone the first centrifugation. The centrifugal pressure inclined screen module 701 can then perform a centrifugal operation on at least one primary fluff fiber raw material in two degrees. Accordingly, the centrifugal pressure inclined screen module 701 can ensure that at least one primary moisture absorbent material of the at least one primary fluff fiber material that is not properly separated by the settling tank 42 of the salt slurry treatment module 400 is returned to the settling tank 42.
The at least one primary fluff fiber raw material after the second centrifugation is then sifted in a centrifugal pressure sifter module 701. The centrifugal pressure inclined screen module 701 of this embodiment is connected to the recycling module 300, and thus the centrifugal pressure inclined screen module 701 can recycle the surplus liquid collected on at least one primary fluff fiber raw material in the inclined screen process, so as to recycle the surplus liquid back to the recycling module 300. Finally, the extruder 702 of this embodiment is connected to the centrifugal pressure inclined screen module 701 and the recovery module 300. In addition to physically extruding the liquid for recycling in an active power manner, the extruder 702 also assists in drying and forming the at least one primary fluff fiber raw material RF.
The absorbent material manufacturing module 600 of the present embodiment mainly comprises a centrifugal vibration screening module 601 and at least one separator 602. The centrifugal vibration and screening module 601 may perform centrifugal separation on at least one primary absorbent material from the settling tank 42 to separate at least one primary fluff fiber material attached thereto. Further, after the primary absorbent material and the separated primary fluff fiber raw materials in the centrifugal vibration screening module 601 are accumulated to a certain amount, the centrifugal vibration screening module 601 may screen at least one primary absorbent material that has been dried or separated from the primary absorbent material and the separated primary fluff fiber raw materials through a movement pattern of a screen and eccentric vibration. As to the above-mentioned at least one primary fluff fiber raw material or at least one primary absorbent material raw material which has not yet dried and agglomerated, which is adhered thereto, is sifted out. Finally, at least one classifier 602 is coupled to the centrifugal vibration screening module 601. The separator 602 in this embodiment may be an air-floating type cleaning separator, a wet type vortex cone machine or a combination thereof, and is determined by looking at the type of the raw material of at least one primary absorbent material and the required treatment mode. The separator 602 of this embodiment should be capable of further screening at least one primary fluff fiber material not screened by the centrifugal vibration screening module 601 and collecting at least one qualified primary absorbent material as absorbent material RS.
In addition, the waterproof recycling screening machine 200 of the present embodiment is mainly used for screening waterproof recycling. Generally, the main component of the waterproof recycled material is a chip composed of polypropylene (Polyproylene, PP) or Polyethylene (PE). The plastic raw material manufacturing module 500 of the present embodiment is connected to the waterproof recycling screening machine 200 to perform the subsequent waterproof recycling process.
In this embodiment, the plastic raw material manufacturing module 500 is mainly composed of a crusher 501, a washing, dehydrating and drying module 502, and a granulator 503. Wherein, breaker 601 is connected with waterproof reclaimed materials sieve separator 200, and breaker 501 can be with the cracked piece of waterproof reclaimed materials into smaller piece. And the washing, dehydrating and drying module 502 is connected with the crusher 501. The cleaning, dehydrating and drying module 502 can wash out impurities or dust generated in the crushing process, and can remove water of the waterproof reclaimed materials. Finally, the water-proof recovery material can be dried by cleaning the dewatering and drying module 502. The granulator 503 is connected with the cleaning, dehydrating and drying module 502. The granulator 503 of the present embodiment can receive the waterproof recycled material dried by the cleaning, dewatering and drying module 502, and make the waterproof recycled material into a granular plastic material RP.
Referring to fig. 1 and fig. 2, fig. 2 is a flowchart of a method for operating the rapid disassembly system of an absorbent article according to an embodiment of the invention. In fig. 2, a method for operating a rapid absorbent article decomposition system based on the embodiment of fig. 1 is mainly provided.
Step (a) is first performed to provide the absorbent article rapid disintegration system 10 described in the embodiment of fig. 1. Next, step (B) is performed to insert at least one absorbent article into the cutting and separating module 100 for preliminary cutting and separating and crushing. In the present embodiment, the dicing separation module 100 is mainly used for primarily dicing the absorbent articles, so that the subsequent process is faster and more reliable. Then, step (C) is performed to break the at least one absorbent article into at least one absorbent recycling and at least one waterproof recycling by the cutting and separating module 100. In the present embodiment, the cutting and separating module 100 breaks and separates at least one absorbent recycling material and at least one waterproof recycling material mainly through the cutter 13, the rotor 12 and the spoiler 11.
Then, according to the classification of the dicing separation module 100, the steps (D1) and (D2) are sequentially performed. Wherein step (D1) is to distribute the at least one absorbent recovery to the slurry treatment module 400 by the cutting and separating module 100 and to perform step (E1). And step (D2) is to send the at least one waterproof recycling material to the waterproof recycling material screening machine 200 by the cutting and separating module 100, and execute step (E2).
Wherein, step (E1) separates the at least one absorbent recycled material into at least one primary fluff fiber raw material and at least one primary absorbent raw material by the salt slurry treatment module 400, and sequentially sends the at least one primary fluff fiber raw material to the fluff fiber raw material manufacturing module 700, and sends the at least one primary absorbent raw material to the absorbent raw material manufacturing module 600, and performs step (F). And step (E2) is to convey the at least one waterproof recycled material to the plastic raw material manufacturing module 500 by the waterproof recycled material screening machine 200, and perform step (F).
Finally, step (F) is performed, wherein the fluff fiber raw material manufacturing module 700 produces at least one fluff fiber raw material RF, the absorbent material raw material manufacturing module 600 manufactures at least one absorbent material raw material RS, and the plastic raw material manufacturing module 500 manufactures at least one plastic raw material RP.
The plastic material RP, the fluff fiber material RF and the moisture absorbing material RS obtained by the embodiment of the invention shown in FIG. 1 and the operation method shown in FIG. 2 can be further prepared into other recycling products due to the higher purity. In addition, the liquid treated by the embodiment can be recycled.
In summary, the present invention is not limited to the preferred embodiments, but is intended to cover modifications and equivalent arrangements included within the scope of the appended claims and their equivalents.

Claims (9)

1. An absorbent article rapid-dissolution system, comprising:
a cutting separation module;
the waterproof reclaimed material screening machine is connected with the cutting and separating module;
The recovery module is connected with the cutting separation module and the waterproof recovery screening machine at the same time;
the salt slurry treatment module is connected with the cutting and separating module;
the plastic raw material manufacturing module is connected with the waterproof reclaimed material screening machine;
The hygroscopic material raw material manufacturing module is connected with the salt slurry treatment module; and
A fluff fiber raw material manufacturing module connected with the salt slurry treatment module;
The cutting and separating module is used for distributing at least one waterproof reclaimed material to the waterproof reclaimed material screening machine;
The salt slurry treatment module separates at least one absorbent reclaimed material into at least one primary fluff fiber raw material and at least one primary absorbent material raw material, and sequentially distributes the at least one primary fluff fiber raw material to the fluff fiber raw material manufacturing module, and the at least one primary absorbent material raw material to the absorbent material raw material manufacturing module.
2. The rapid absorbent article decomposition system of claim 1, wherein the fluff fiber raw material manufacturing module further comprises:
A centrifugal pressure inclined screen module; and
And the extruder is connected with the centrifugal pressure inclined screen module.
3. The rapid absorbent article decomposition system of claim 1, wherein the absorbent material manufacturing module further comprises:
the centrifugal vibration screening module is connected with the salt slurry treatment module; and
And at least one separator connected to the centrifugal vibration screening module.
4. The rapid absorbent article decomposition system of claim 3 wherein the at least one classifier is an air-floating purge classifier, a wet vortex cone machine, or a combination thereof.
5. The rapid absorbent article decomposition system of claim 1, wherein the plastic raw material manufacturing module further comprises:
The crusher is connected with the waterproof reclaimed material screening machine;
The cleaning, dehydrating and drying module is connected with the crusher; and
And the granulator is connected with the cleaning, dehydrating and drying module.
6. The rapid degradation system of claim 1, wherein the recycling module further comprises a plurality of carriers, each of the plurality of carriers carrying at least one organic matter degrading microorganism.
7. A method of operating a rapid absorbent article decomposition system, comprising:
(A) Providing the rapid disintegration system of an absorbent article of claim 1;
(B) Placing at least one absorbent article into the cutting and separating module for preliminary cutting, separating and crushing;
(C) Breaking the at least one absorbent article into the at least one absorbent reclaimed material and the at least one waterproof reclaimed material by the cutting and separating module;
(D1) The cutting and separating module distributes the at least one absorptive reclaimed material to the salt slurry processing module and performs step (E1);
(D2) The cutting and separating module distributes the at least one waterproof reclaimed material to the waterproof reclaimed material screening machine and executes the step (E2);
(E1) The salt slurry treatment module separates the at least one absorbent reclaimed material into the at least one primary fluff fiber raw material and the at least one primary absorbent raw material, and sequentially distributes the at least one primary fluff fiber raw material to the fluff fiber raw material manufacturing module, and distributes the at least one primary absorbent raw material to the absorbent raw material manufacturing module, and performs the step (F);
(E2) The waterproof reclaimed material screening machine conveys the at least one waterproof reclaimed material to the plastic raw material manufacturing module and executes the step (F); and
(F) The fluff fiber raw material manufacturing module produces at least one fluff fiber raw material, the absorbent material raw material manufacturing module manufactures at least one absorbent material raw material, and the plastic raw material manufacturing module manufactures at least one plastic raw material.
8. The method according to claim 7, wherein the recycling module is used for recycling sewage from the waterproof recycling screening machine and the fluff fiber raw material manufacturing module.
9. The method of claim 7, wherein the at least one absorbent article is a diaper.
CN202280062119.4A 2021-09-17 2022-09-17 Quick decomposing system for absorptive article and its operation method Pending CN118434931A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US63/245,796 2021-09-17
US202163272164P 2021-10-26 2021-10-26
US63/272,164 2021-10-26
US63/272,159 2021-10-26
PCT/US2022/043905 WO2023044077A1 (en) 2021-09-17 2022-09-17 Absorptive article quick decomposition system and operating method thereof

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CN118434931A true CN118434931A (en) 2024-08-02

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CN202280062119.4A Pending CN118434931A (en) 2021-09-17 2022-09-17 Quick decomposing system for absorptive article and its operation method

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