Plastic particle preparation device and method

Abstract

The invention provides a plastic particle preparation device and method. The device comprises a high-level water tank, a soaking pool, a cleaning pool, a first-level rinsing pool, a second-level rinsing pool and a third-level rinsing pool which are communicated in sequence from top to bottom, and recycled plastic film residues are washed by circulating water in the high-level water tank, soaked in the soaking pool and cleaned in the cleaning pool in sequence and then discharged out of the third-level rinsing pool. Multi-stage rinsing is carried out through a first-stage rinsing pool, a second-stage rinsing pool and a third-stage rinsing pool; the third-stage circulating water pool, the second-stage circulating water pool and the first-stage circulating water pool are sequentially connected, and the first-stage circulating water pool is communicated with the third-stage rinsing pool; the circulating water pump is placed in the third-stage circulating water pool and is used for providing power for circulating water in the third-stage circulating water pool so as to realize water circulation; one end of the water return pipeline extends into the high-level water tank, and the other end of the water return pipeline extends into the third-stage circulating water pool, is connected with the circulating water pump and is used for recovering circulating water in the third-stage circulating water pool into the high-level water tank.

Description

Technical Field

[0001] The present invention relates to the cross - technical field of residual film pollution control and recycling of renewable resources, and more specifically, to an apparatus and method for preparing plastic particles. Background Art

[0002] The plastic film mulching technology is widely used in cotton planting to improve the soil moisture - retaining capacity and crop yield. However, this technology has led to a large amount of polyethylene residual film remaining in the soil, causing serious environmental pollution and soil degradation. In addition, the existing treatment methods for recycled residual film are limited, mostly incineration or landfill, which not only wastes resources but also causes secondary pollution.

[0003] To address this challenge, some residual film resource utilization technologies have emerged in recent years. However, most of these technologies are intermittent operations, suffering from problems such as low production efficiency, resource waste, and pollution risks. For example, some studies have attempted to use residual film for the production of plastic particles, but the existing processes are difficult to achieve continuous production, and have high energy consumption and unstable quality during the production process.

[0004] Therefore, there is an urgent need for a system and process that can efficiently and continuously convert cotton field residual film into high - value - added plastic particles to achieve resource recycling and environmental sustainable development. Summary of the Invention

[0005] In view of the above problems, the present invention provides an apparatus and method for preparing plastic particles.

[0006] On the one hand, the present invention provides an apparatus for preparing plastic particles, including: a high - level water tank, an immersion tank, a cleaning tank, a first - stage rinsing tank, a second - stage rinsing tank, and a third - stage rinsing tank that are connected in series from top to bottom. Among them, the recycled residual film is sequentially rinsed by the circulating water in the high - level water tank, immersed in the immersion tank, and cleaned in the cleaning tank, and then undergoes multi - stage rinsing through the first - stage rinsing tank, the second - stage rinsing tank, and the third - stage rinsing tank; a third - stage circulating water tank, a second - stage circulating water tank, and a first - stage circulating water tank that are connected in sequence, and the first - stage circulating water tank is connected to the third - stage rinsing tank; a circulating water pump placed in the third - stage circulating water tank for providing power to the circulating water in the third - stage circulating water tank to achieve water circulation; a return water pipe with one end extending into the high - level water tank and the other end extending into the third - stage circulating water tank and connected to the circulating water pump for recycling the circulating water in the third - stage circulating water tank back to the high - level water tank.

[0007] According to an embodiment of the present invention, the first - stage circulating water tank, the second - stage circulating water tank, and the third - stage circulating water tank are used for multi - stage treatment and reuse of the circulating water in the third - stage rinsing tank.

[0008] According to an embodiment of the present invention, a water - control sieve is connected to the third - stage rinsing tank for dehydrating the residual film in the third - stage rinsing tank.

[0009] According to an embodiment of the present invention, a hot melt wire drawing machine is connected to a water control screen and is used to draw and shape the residual film.

[0010] According to an embodiment of the present invention, the first-stage conveyor belt is connected to the hot-melt wire drawing machine and is used to convey the residual film after drawing and forming.

[0011] According to an embodiment of the present invention, a cutting and stretching machine is connected to the first-stage conveyor belt and is used to cut the conveyed residual film.

[0012] According to an embodiment of the present invention, the second-stage conveyor belt is connected to the cutting and stretching machine and is used to convey the residual film after cutting.

[0013] According to an embodiment of the present invention, a ton bag of plastic particles is connected to the second-stage conveyor belt and is used to bag the residual film after cutting.

[0014] On the other hand, the present invention provides a method for preparing plastic particles, including: washing the recovered residual film with a high-level water tank, soaking and softening the washed residual film with a soaking tank, and cleaning the soaked residual film with a cleaning tank; performing multi-stage rinsing on the cleaned residual film with a first-level rinsing tank, a second-level rinsing tank, and a third-level rinsing tank to remove impurities on the surface of the residual film; introducing water in the third-level rinsing tank into a first-level circulating water tank, performing multi-stage treatment and reuse on the circulating water in the third-level rinsing tank with the first-level circulating water tank, the second-level circulating water tank, and the third-level circulating water tank, and introducing the circulating water from the return pipe into the high-level water tank with a circulating water pump.

[0015] According to an embodiment of the present invention, a water control screen is used to dehydrate the residual film after rinsing, and the dehydrated residual film is drawn and molded by a hot melt wire drawing machine and then transported to a cutting and drawing machine through a first-stage conveyor belt for cutting, and the cut residual film is transported into a plastic particle ton bag for bagging by a second-stage conveyor belt.

[0016] The device and method for preparing plastic particles provided by the present invention can achieve the following beneficial effects:

[0017] The system effectively removes impurities and trace residues on the surface of the residual film through multi-stage rinsing to ensure the purity of the plastic particles. The recycling water design reduces water waste, reduces production costs, and reduces drainage pressure on the environment. This system can realize the resource utilization of cotton field waste, has a simple process flow, and can be produced on a continuous scale, which is conducive to promoting the recycling of agricultural waste and the green development of the plastic processing industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other objects, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0019] Figure 1 Schematically shows the structural diagram of a plastic particle preparation device according to an embodiment of the present invention;

[0020] Figure 2 Schematically shows the flow chart of a plastic particle preparation method according to an embodiment of the present invention.

[0021] Description of reference numerals:

[0022] 1 - High - level water tank; 2 - Soaking pool; 3 - Cleaning pool; 4 - First - stage rinsing pool; 5 - Second - stage rinsing pool; 6 - Third - stage rinsing pool; 7 - First - stage circulating water pool; 8 - Second - stage circulating water pool; 9 - Third - stage circulating water pool; 10 - Circulating water pump; 11 - Return water pipeline; 12 - Water - control sieve; 13 - Hot - melt wire - drawing machine; 14 - First - stage conveyor belt; 15 - Cutting and drawing machine; 16 - Second - stage conveyor belt; 17 - Plastic particle ton - bag. Detailed implementation manners

[0023] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention. In the following detailed description, for the sake of explanation, many specific details are set forth to provide a comprehensive understanding of the embodiments of the present invention. However, obviously, one or more embodiments can also be implemented without these specific details. In addition, in the following description, descriptions of well - known structures and technologies are omitted to avoid unnecessarily obscuring the concepts of the present invention.

[0024] The terms used herein are merely for describing specific embodiments and are not intended to limit the present invention. The terms "including", "comprising", etc. used herein indicate the presence of features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0025] All terms used herein (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification and should not be interpreted in an idealized or overly rigid manner.

[0026] Figure 1 Schematically shows the structural diagram of a plastic particle preparation device according to an embodiment of the present invention.

[0027] As Figure 1As shown in the figure, the plastic particle preparation device according to the embodiment of the invention includes: a high-level water tank 1, a soaking pool 2, a cleaning pool 3, a first-stage rinsing pool 4, a second-stage rinsing pool 5, a third-stage rinsing pool 6, a first-stage circulating water tank 7, a second-stage circulating water tank 8, a third-stage circulating water tank 9, a circulating water pump 10, a return water pipe 11, a water control sieve 12, a hot melt wire drawing machine 13, a first-stage conveyor belt 14, a cutting and drawing machine 15, a second-stage conveyor belt 16, and a plastic particle ton bag 17.

[0028] The high-level water tank 1 is used for washing the recycled waste films.

[0029] The soaking pool 2 is used for soaking and softening the washed waste films.

[0030] The cleaning pool 3 is used for cleaning the soaked waste films.

[0031] The first-stage rinsing pool 4, the second-stage rinsing pool 5, and the third-stage rinsing pool 6 are used for multi-stage rinsing of the washed waste films.

[0032] The first-stage circulating water tank 7, the second-stage circulating water tank 8, and the third-stage circulating water tank 9 are used for multi-stage treatment and reuse of the rinsed circulating water.

[0033] The circulating water pump 10 is used to provide power for the circulating water in the third-stage circulating water tank 9 to realize the circulation of water.

[0034] The return water pipe 11 is used to recycle the circulating water in the third-stage circulating water tank 9 to the high-level water tank 1.

[0035] The water control sieve 12 is used for dehydrating the waste films in the third-stage rinsing pool 6.

[0036] The hot melt wire drawing machine 13 is used for plastic drawing and forming of the dehydrated waste films.

[0037] The first-stage conveyor belt 14 is used for conveying the plastic drawn and formed waste films.

[0038] The cutting and drawing machine 15 is used for cutting the conveyed waste films.

[0039] The second-stage conveyor belt 16 is used for conveying the cut waste films.

[0040] The plastic particle ton bag 17 is used for bagging the cut waste films.

[0041] In the embodiment of the present invention, the high-level water tank 1, the soaking pool 2, the cleaning pool 3, the first-stage rinsing pool 4, the second-stage rinsing pool 5, and the third-stage rinsing pool 6 are connected in sequence from top to bottom. The third-stage circulating water pool 9, the second-stage circulating water pool 8, and the first-stage circulating water pool 7 are connected in sequence. The circulating water pump 10 is placed in the third-stage circulating water pool 9. One end of the return water pipe 11 extends into the high-level water tank 1, and the other end extends into the third-stage circulating water pool 9 and is connected to the circulating water pump 10.

[0042] In the embodiment of the present invention, the water control sieve 12 is connected to the third-stage rinsing pool 6.

[0043] In the embodiment of the present invention, the hot melt wire drawing machine 13 is connected to the water control sieve 12.

[0044] In the embodiment of the present invention, the first-stage conveyor belt 14 is connected to the hot melt wire drawing machine 13.

[0045] In the embodiment of the present invention, the cutting and drawing machine 15 is connected to the first-stage conveyor belt 14.

[0046] In the embodiment of the present invention, the second-stage conveyor belt 16 is connected to the cutting and drawing machine 15.

[0047] In the embodiment of the present invention, the plastic particle ton bag 17 is connected to the second-stage conveyor belt 16.

[0048] The plastic particle preparation device of the embodiment of the present invention performs multi-stage treatment and recycling, and sequentially soaks, cleans, and performs multi-stage rinsing on the residual film, effectively removing impurities such as soil and cotton stalk fragments, and ensuring the purity of the plastic particles. In addition, it is equipped with a closed-loop water recycling system, and all the water used in the production process is recycled, significantly reducing water resource waste and environmental pollution.

[0049] The present invention also provides a plastic particle preparation method applied to the above plastic particle preparation device, which will be described in detail below in combination with Figure 2 This method will be described in detail.

[0050] Figure 2 A flowchart of the plastic particle preparation method according to the embodiment of the present invention is schematically shown.

[0051] As Figure 2 shown, according to the plastic particle preparation method of this embodiment, it can be applied to the above plastic particle preparation device, and this method may include steps S1 to S31 and steps S1 to S32.

[0052] Step S1, using the high-level water tank 1 to wash the recycled residual film, using the soaking pool 2 to soak and soften the washed residual film, using the cleaning pool 3 to clean the soaked residual film, and the soaking pool 2 can use clear water to soak the washed residual film

[0053] Step S2: Use the first-stage rinsing tank 4, the second-stage rinsing tank 5, and the third-stage rinsing tank 6 to perform multi-stage rinsing on the washed residual film to remove impurities on the surface of the residual film.

[0054] Gradually remove impurities and trace residues on the surface of the residual film through the first-stage rinsing tank 4, the second-stage rinsing tank 5, and the third-stage rinsing tank 6. The first-stage rinsing tank 4, the second-stage rinsing tank 5, and the third-stage rinsing tank 6 can use clean water to rinse the washed residual film.

[0055] Step S31: Introduce the circulating water in the third-stage rinsing tank 6 into the first-stage circulating water tank 7. Use the first-stage circulating water tank 7, the second-stage circulating water tank 8, and the third-stage circulating water tank 9 to perform multi-stage treatment on the circulating water in the third-stage rinsing tank 6. Use the circulating water pump 10 to introduce the treated circulating water from the return water pipeline 11 into the high-level water tank 1 for reuse by the system.

[0056] Step S32: Use the water control sieve 12 to dehydrate the rinsed residual film. Use the hot melt drawing machine 13 to draw and shape the dehydrated residual film, and then convey it to the cutting machine 15 through the first-stage conveyor belt 14 for cutting. Use the second-stage conveyor belt 16 to send the cut residual film into the plastic particle ton bag 17 for bagging.

[0057] For example, the water control sieve 12 can adopt a rotary water control sieve, and the hot melt drawing machine 13 can be a flat wire drawing machine (used for producing plastic woven bags such as grain bags, fertilizer bags, or ton bags, tarpaulins, etc.), a round wire drawing machine (producing fishing nets, fishing lines, brush filaments, industrial monofilaments, etc.), or a split film wire drawing machine (producing mesh fibers such as lawn filaments, carpet base cloth).

[0058] The following describes in detail the plastic particle preparation method provided by the present invention with a specific embodiment.

[0059] Embodiment

[0060] After the residual film enters the high-level water tank 1 for washing through the continuous feeding device, it enters the residual film soaking pool 2. After soaking and softening, it successively enters the cleaning pool 3, the first-stage rinsing tank 4, the second-stage rinsing tank 5, and the third-stage rinsing tank 6 to gradually remove surface impurities and trace residues.

[0061] The circulating water after soaking, cleaning, and multi-stage rinsing flows from the third-stage rinsing tank 6 into the first-stage circulating water tank 7. The treatment process successively passes through the first-stage circulating water tank 7, the second-stage circulating water tank 8, and the third-stage circulating water tank 9 to gradually treat the water quality of the circulating water. The treated circulating water is pumped by the circulating water pump 10 and returned to the high-level water tank 1 through the return water pipeline 11 for reuse by the system.

[0062] The residual film after three - stage rinsing enters the water - control sieve 12 for dehydration, and then is sent to the melt - drawing machine 13 for shaping. The shaped residual film enters the cutting and drawing machine 15 through the first - stage conveyor belt 14 for cutting, and then is packed into plastic particle ton - bags 17 through the second - stage conveyor belt 16, completing the production of plastic particles.

[0063] The method for preparing plastic particles according to the embodiment of the present invention has a simple technological process, can be mass - produced, the system runs stably. The whole process realizes the resource utilization of cotton - field residual film, reduces farmland pollution, improves resource utilization rate, reduces the production cost of plastic particles, and has significant environmental and economic benefits.

[0064] In summary, the plastic - particle preparation device and method provided by the present invention provide an efficient, environmentally friendly and resource - based solution for treating cotton - field residual film, and have significant advantages compared with the traditional intermittent operation mode. Through multi - stage rinsing, surface impurities and trace residues on the residual film surface are effectively removed, ensuring the purity of plastic particles. The design of recycling water reduces water resource waste, reduces production costs, and at the same time alleviates the drainage pressure on the environment. The technological process is simple, can be continuously and large - scale produced, has significant comprehensive benefits, and opens up a new path for promoting the circular utilization of agricultural waste and the green development of the plastic - processing industry.

[0065] The flowcharts and block diagrams in the accompanying drawings illustrate the possible architectures, functions, and operations of devices and methods according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagram may represent a module, a program segment, or a part of code, and the above - mentioned module, program segment, or part of code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than that marked in the accompanying drawings. For example, two consecutive blocks shown may actually be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each block in the block diagram or flowchart, and the combination of blocks in the block diagram or flowchart, can be implemented by a dedicated hardware - based system for performing the specified functions or operations, or can be implemented by a combination of dedicated hardware and computer instructions.

[0066] Those skilled in the art can understand that the features recorded in various embodiments of the present invention can be combined or combined in various ways, even if such combinations or combinations are not explicitly recorded in the present invention. In particular, without departing from the spirit and teachings of the present invention, the features recorded in various embodiments of the present invention can be combined or combined in various ways. All such combinations or combinations fall within the scope of the present invention.

[0067] The embodiments of the present invention have been described above. However, these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Although the embodiments have been described separately above, this does not mean that the measures in each embodiment cannot be used advantageously in combination. Without departing from the scope of the present invention, those skilled in the art can make various substitutions and modifications, and all such substitutions and modifications should fall within the scope of the present invention.

Claims

1. A plastic particle preparation device, characterized in that, Including: A high-level water tank (1), a soaking pool (2), a cleaning pool (3), a first-stage rinsing pool (4), a second-stage rinsing pool (5), and a third-stage rinsing pool (6) that are connected in sequence from top to bottom. Among them, the recycled residual film is sequentially rinsed by the circulating water in the high-level water tank (1), soaked in the soaking pool (2), and cleaned in the cleaning pool (3), and then passes through the first-stage rinsing pool (4), the second-stage rinsing pool (5), and the third-stage rinsing pool (6). A third-stage circulating water tank (9), a second-stage circulating water tank (8), and a first-stage circulating water tank (7) that are connected in sequence. The first-stage circulating water tank (7) is connected to the third-stage rinsing pool (6). A circulating water pump (10) placed in the third-stage circulating water tank (9) for providing power to the circulating water in the third-stage circulating water tank (9) to achieve water circulation. A return water pipe (11) with one end extending into the high-level water tank (1) and the other end extending into the third-stage circulating water tank (9) and connected to the circulating water pump (10) for recovering the circulating water in the third-stage circulating water tank (9) into the high-level water tank (1).

2. The device according to claim 1, wherein The first-stage circulating water tank (7), the second-stage circulating water tank (8), and the third-stage circulating water tank (9) are used for multi-stage treatment and reuse of the circulating water in the third-stage rinsing pool (6).

3. The device according to claim 1, characterized in that, The device further includes: A water control sieve (12) connected to the third-stage rinsing pool (6) for dehydrating the residual film in the third-stage rinsing pool (6).

4. The device according to claim 3, characterized in that, The device further includes: A hot melt wire drawing machine (13) connected to the water control sieve (12) for plastic drawing and forming of the residual film.

5. The device according to claim 4, characterized in that, The device further includes: A first-stage conveyor belt (14) connected to the hot melt wire drawing machine (13) for conveying the plastic-drawn and formed residual film.

6. The device according to claim 5, characterized in that, The device further includes: A cutting and drawing machine (15) connected to the first-stage conveyor belt (14) for cutting the conveyed residual film.

7. The device according to claim 6, characterized in that, The device further includes: A second-stage conveyor belt (16) connected to the cutting and drawing machine (15) for conveying the cut residual film.

8. The device according to claim 7, characterized in that Including: A plastic particle ton bag (17) connected to the second-stage conveyor belt (16) for bagging the cut residual film.

9. A method for preparing plastic particles by using the plastic particle preparation device according to any one of claims 1 to 8, characterized in that, Including: Washing the recycled residual film with the high-level water tank (1), soaking and softening the washed residual film with the soaking pool (2), and cleaning the soaked residual film with the cleaning pool (3). Multi-stage rinsing the cleaned residual film with the first-stage rinsing pool (4), the second-stage rinsing pool (5), and the third-stage rinsing pool (6) to remove impurities on the surface of the residual film. Introducing the water in the third-stage rinsing pool (6) into the first-stage circulating water tank (7), and using the first-stage circulating water tank (7), the second-stage circulating water tank (8), and the third-stage circulating water tank (9) to perform multi-stage treatment and reuse of the circulating water in the third-stage rinsing pool (6), and using the circulating water pump (10) to introduce the circulating water from the return water pipe (11) into the high-level water tank (1).

10. The method according to claim 9, wherein The method further includes: The water control sieve (12) is used to dehydrate the residual film after rinsing, and the hot melt wire drawing machine (13) is used to draw and shape the dehydrated residual film, which is then conveyed to the cutting and drawing machine (15) through the first-stage conveyor belt (14) for cutting. The second-stage conveyor belt (16) is used to send the cut residual film into the plastic particle ton bag (17) for bagging.

Images