Paper-plastic separation device

Abstract

The utility model discloses a paper-plastic separation device, and relates to the technical field of household garbage treatment machinery, the paper-plastic separation device comprises a rack, a separation cylinder, a first separation assembly and a second separation assembly, the separation cylinder is horizontally arranged on the rack, a cavity is formed in the separation cylinder, the second separation assembly comprises a rotating shaft and a first driving part, and the rotating shaft is arranged on the rack; the rotating shaft and the separating cylinder are coaxially arranged, and a plurality of blades are arranged on the rotating shaft; the first separation assembly is arranged at one end of the separation barrel, the first separation assembly comprises a barrel body, a water spraying assembly and a stirring assembly, the barrel body communicates with the separation barrel, and a feeding port is formed in the end, away from the separation barrel, of the barrel body; a first discharge port and a second discharge port which are communicated with the cavity are formed in the bottom of the separation cylinder; and the second discharge port is positioned at one end, far away from the first separation assembly, of the separation cylinder. The paper-plastic separation effect can be improved, and the resource recycling efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of municipal solid waste treatment machinery, and in particular to a paper-plastic separation device. Background Technology

[0002] Paper-plastic separation, as the name suggests, involves separating paper and plastic for recycling, and is a very important method in resource recycling. Paper-plastic separation devices mainly target paper-plastic products, such as common paper packaging boxes or bags, which usually have a plastic layer on the surface or inside to improve the packaging's waterproofness, flexibility, etc.

[0003] When separating paper from plastic in the above-mentioned paper-plastic products, the paper-plastic products are usually first cut and crushed to form a large number of paper pieces with plastic layers. Then, the paper pieces are wetted. Based on the characteristic that the mass of the wet paper is much greater than that of the plastic, the paper and plastic on the paper pieces are separated and collected separately.

[0004] However, because the plastic layer and paper on paper-plastic products are usually very firmly bonded, the paper may still stick to the plastic after being wet, which will affect the separation effect of paper and plastic and cause waste of resources. Utility Model Content

[0005] To improve the paper-plastic separation effect, this application provides a paper-plastic separation device.

[0006] This application provides a paper-plastic separation device, which adopts the following technical solution:

[0007] A paper-plastic separation device includes a frame, a separation cylinder, a first separation component, and a second separation component. The separation cylinder is horizontally mounted on the frame and has a cavity inside. The second separation component includes a rotating shaft and a first driving member for driving the rotating shaft to rotate. The rotating shaft is coaxially mounted with the separation cylinder, and the rotation axis of the rotating shaft coincides with its own axis. The rotating shaft is provided with a plurality of blades, and the blades are inclined to the axis of the rotating shaft.

[0008] The first separation component is disposed at one end of the separation cylinder. The first separation component includes a cylinder body, a water spraying component for wetting the paper, and a stirring component for separating the paper and plastic. The cylinder body is connected to the separation cylinder, and an inlet is provided at the end of the cylinder body away from the separation cylinder.

[0009] The bottom of the separator cylinder is provided with a first discharge port and a second discharge port that communicate with the cavity. The second discharge port is located at the end of the separator cylinder away from the first separator component.

[0010] By adopting the above technical solution, the paper sheet first comes into full contact with water in the first separation component, allowing the paper to absorb enough water to facilitate its separation from the plastic. During the contact between the paper sheet and the water, the stirring component initially separates the paper from the plastic. Then, the second separation component further separates the paper from the plastic, thereby improving the paper-plastic separation effect and reducing the probability of paper residue remaining on the plastic after the paper-plastic separation. At the same time, the second separation component will drive the mixture of paper sheet and water to move, so that the pulp and plastic leave from different outlets for collection.

[0011] Optionally, the stirring assembly includes a stirring element and a second driving element for driving the stirring element to rotate. The stirring element is located inside the cylinder and is rotatably connected to the cylinder, while the second driving element is located outside the cylinder and is fixedly connected to the cylinder.

[0012] By adopting the above technical solution, the initial paper-plastic separation effect inside the cylinder can be guaranteed.

[0013] Optionally, a valve is provided between the cylinder and the separation cylinder, and the water spraying assembly includes a water tank, a water inlet pipe and a water inlet pump. The water tank and the cylinder are connected by the water inlet pipe, and the water inlet pump is located at one end of the water inlet pipe near the cylinder.

[0014] By adopting the above technical solution, during the initial paper-plastic separation process after the paper comes into contact with water, the valve is closed, allowing the paper to fully contact the water in the cylinder. After the initial paper-plastic separation, the valve is opened, and the mixture of paper and water after the initial paper-plastic separation enters the cavity for further paper-plastic separation, ensuring the effectiveness of the initial paper-plastic separation.

[0015] Optionally, the separation cylinder is provided with a filter element, the filter element covers the first discharge port, and the filter element has a plurality of filter holes for pulp to pass through.

[0016] By adopting the above technical solution, the pulp formed after further paper-plastic separation of the mixture of paper and water can flow out and be collected from the first discharge port through the filter element, which can further ensure the effect of paper-plastic separation. At the same time, the paper flowing out in the form of pulp also helps the subsequent recycling of paper.

[0017] Optionally, a brush body is provided at the end of the blade away from the rotation axis, and the brush body contacts the cavity wall.

[0018] By adopting the above technical solution, during the rotation of the rotating shaft, the brush body can scrape off the paper and plastic adhering to the cavity wall, thereby reducing the probability of paper or plastic adhering to the cavity wall.

[0019] Optionally, the separating cylinder has a guide portion in the cavity, the guide portion being located between the first discharge port and the second discharge port, and the end of the guide portion near the first discharge port forming a stagnation groove for the paper-water mixture to remain.

[0020] By adopting the above technical solution, the paper-water mixture can be kept at the first discharge port, preventing it from moving to the second discharge port under the drive of the second separation component, thereby further improving the paper-plastic separation effect.

[0021] Optionally, the guide portion has a guide surface, the guide surface is inclined, the end of the guide surface near the first discharge port is the inclined lower end, and the guide portion is provided with a plurality of protrusions on the guide surface.

[0022] By adopting the above technical solution, when the second separation component moves the water-stopping mixture to the guide surface, the paper, water, pulp and paper-plastic mixture will slide down the guide surface into the retention tank under their own gravity and flow out from the first discharge port or continue to be separated from the paper and plastic. The plastic separated from the paper and plastic can stay on the guide surface by the friction between the two under the action of several protrusions.

[0023] Optionally, the separation cylinder is also provided with a drying element for drying the guide surface.

[0024] By adopting the above technical solution, the adhesion force between the plastic and the bump caused by water residue can be reduced, thereby making it easier for the plastic to be blown away from the guide surface by the airflow formed by the rotating blades and leave from the second discharge port.

[0025] Optionally, the end of the separating cylinder near the second discharge port is also provided with a pneumatic component for driving the plastic out of the second discharge port.

[0026] By adopting the above technical solution, the pneumatic component can further drive the gas in the cavity to flow towards the second discharge port, thereby driving the plastic on the guide surface to leave from the second discharge port, improving the reliability of plastic collection, and facilitating the effective utilization of the plastic obtained from paper-plastic separation.

[0027] In summary, this application includes at least one of the following beneficial effects:

[0028] 1. After the paper comes into contact with water, it needs to undergo two paper-plastic separation processes to reduce the probability of paper-plastic mixture remaining after the separation is completed, thereby improving the paper-plastic separation effect;

[0029] 2. The pulp and plastic formed after paper-plastic separation can leave from the corresponding discharge port, improving the collection efficiency after paper-plastic separation. Attached Figure Description

[0030] Figure 1This is a schematic diagram of the structure of a paper-plastic separation device according to an embodiment of this application;

[0031] Figure 2 This is a cross-sectional view of a paper-plastic separation device according to an embodiment of this application;

[0032] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0033] Explanation of reference numerals in the attached drawings: 1. Frame; 2. First separation assembly; 21. Cylinder; 211. Feed inlet; 22. Valve; 23. Water spray assembly; 231. Water tank; 232. Water pipe; 233. Water pump; 24. Stirring assembly; 241. Stirring component; 242. Second drive component; 3. Second separation assembly; 31. Blade; 311. Brush body; 32. Rotating shaft; 33. First drive component; 4. Separation cylinder; 41. Cavity; 42. First discharge port; 43. Second discharge port; 44. Guide part; 441. Guide surface; 442. Protrusion; 45. Retention groove; 5. Feed hopper; 6. Container; 7. Discharge hopper; 8. Filter element; 81. Filter hole; 9. Drying element; 10. Pneumatic component. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0035] This application discloses a paper-plastic separation device for separating paper-plastic products that have been broken into paper pieces.

[0036] Reference Figure 1 and Figure 2 The paper-plastic separation device includes a frame 1 for support, a first separation component 2 for initial paper-plastic separation of paper sheets, a second separation component 3 for further paper-plastic separation of paper sheets, and a separation cylinder 4 for providing space for further paper-plastic separation. The separation cylinder 4 is mounted on the frame 1, the first separation component 2 is mounted outside the separation cylinder 4, and the second separation component 3 is mounted inside the separation cylinder 4. After initial paper-plastic separation at the first separation component 2, the paper sheets form a paper-water mixture that enters the separation cylinder 4. In the separation cylinder 4, the second separation component 3 further separates the paper into pulp and plastic.

[0037] The separator 4 is a cylindrical structure. After being installed on the frame 1, the separator 4 is suspended in the air, and its axis is horizontal. The separator 4 has a cavity 41 inside, which is also a cylindrical structure, and its axis coincides with the axis of the separator 4.

[0038] Reference Figure 1 and Figure 2The first separation component 2 is located at the top of the separation cylinder 4, and at one end along the axis of the separation cylinder 4. The first separation component 2 includes a cylinder 21, which is a hollow cylindrical structure. The cylinder 21 is fixedly connected to and communicates with the separation cylinder 4, and the axis of the cylinder 21 is vertical. The end of the cylinder 21 away from the separation cylinder 4 has a feed inlet 211 for paper sheets to enter. A feed hopper 5, which is a funnel structure, is also fixedly connected above the cylinder 21 to facilitate the feeding of paper sheets.

[0039] The first separation assembly 2 also includes a valve 22 for controlling whether the cylinder 21 and the separation cylinder 4 are connected, and a water spray assembly 23 for wetting the paper. The valve 22 is installed at the junction of the cylinder 21 and the separation cylinder 4. The water spray assembly 23 includes a water tank 231 for water supply, a water pipe 232 for water transportation, and a water pump 233 for driving water into the cylinder 21. The water tank 231 is located on one side of the frame 1. The two ends of the water pipe 232 are respectively connected to the inside of the water tank 231 and the inside of the cylinder 21. The water pump 233 is fixedly installed on the cylinder 21 and is located between the water pipe 232 and the cylinder 21. When the water pump 233 is working, it can drive the water in the water tank 231 to flow into the inside of the cylinder 21 through the water pipe 232.

[0040] Reference Figure 1 and Figure 2 The first separation component 2 further includes a stirring component 24 for preliminary paper-plastic separation of the paper sheets after contact with water. The stirring component 24 includes a stirring element 241 with stirring function and a second driving element 242 for driving the stirring element 241. The stirring element 241 is located inside the cylinder 21 and is rotatably connected to the cylinder 21. The second driving element 242 is fixedly installed on the outside of the cylinder 21 and drives the stirring element 241 to rotate. In this embodiment, preferably, the rotation axis 32 of the stirring element 241 is parallel to the axis of the separation cylinder 4. In other embodiments, the rotation axis 32 of the stirring element 241 may be in other states. In this embodiment, it is also preferred that the second driving element 242 is a motor.

[0041] With valve 22 closed, after the paper enters the cylinder 21, the water spraying component 23 injects water into the cylinder 21 to fully contact the paper. At the same time, the stirring component 24 works to initially separate the paper from the plastic on the paper. After the initial paper-plastic separation is completed, valve 22 opens, and the paper-water mixture flows into the cavity 41.

[0042] Reference Figure 1 and Figure 2The second separation component 3 includes several blades 31 for moving the paper-water mixture and further separating the paper and plastic, a rotating shaft 32 for rotating the blades 31, and a first driving member 33 for rotating the rotating shaft 32. The rotating shaft 32 is coaxially mounted with the separation cylinder 4 and rotatably connected to it, with most of the rotating shaft 32 located in the cavity 41. The first driving member 33 is fixedly connected to the frame 1, and one end of the rotating shaft 32 extends through the separation cylinder 4 and connects with the first driving member 33. In this embodiment, the first driving member 33 is preferably a combination structure of a motor and a pulley.

[0043] Several blades 31 are evenly distributed on the side of the rotating shaft 32 along the axial direction of the rotating shaft 32, and the blades 31 are also arranged in a circular array on the side of the rotating shaft 32 with the axis of the rotating shaft 32 as the axis. The blades 31 have an arc-shaped structure, with the arc opening of the blades 31 facing away from the first separation component 2, and the blades 31 are inclined relative to the axis of the rotating shaft 32. When the rotating shaft 32 drives the blades 31 to rotate, the blades 31 will form an airflow that blows away from the first separation component 2.

[0044] Reference Figure 1 and Figure 2 The bottom of the separating cylinder 4 has a first discharge port 42 for pulp to flow out and a second discharge port 43 for plastic to leave. The second discharge port 43 is located on the side of the first discharge port 42 away from the first separating component 2. A container 6 for collecting pulp and a container 6 for collecting plastic are installed below the separating cylinder 4. Discharge hoppers 7 are installed at both the first discharge port 42 and the second discharge port 43 to facilitate discharge. A filter element 8 is installed at the first discharge port 42 of the separating cylinder 4. The filter element 8 has several filter holes 81, allowing only the pulp formed after paper-plastic separation to flow out through the filter holes 81.

[0045] A brush body 311 is installed at the end of the blade 31 away from the rotating shaft 32. The brush body 311 is composed of several bristles. The brush body 311 abuts against the cavity wall of the cavity 41. During the rotation of the blades 31 driven by the rotating shaft 32, the brush body 311 can scrape off the paper and plastic adhering to the cavity wall of the cavity 41. The end face of the filter element 8 near the cavity 41 is flush with the cavity wall of the cavity 41. During the rotation of the blades 31 driven by the rotating shaft 32, the filter element 8 can also be cleared of blockage, reducing the probability of the filter holes 81 being blocked.

[0046] Reference Figure 2 and Figure 3The separating cylinder 4 has a guide portion 44 at the bottom of the cavity 41, which is located between the first discharge port 42 and the second discharge port 43. The blades 31 on the rotating shaft 32 are positioned on the side of the guide portion 44 closer to the first separating component 2. The side of the guide portion 44 closer to the first separating component 2 forms a retention groove 45 in the cavity 41 for pulp to remain. The guide portion 44 has an inclined guide surface 441, with the end of the guide surface 441 near the first discharge port 42 being an inclined lower end, and the inclined lower end of the guide surface 441 is in contact with the cavity wall of the cavity 41.

[0047] When the second separation component 3 is working, it drives the paper-plastic mixture at the bottom of the cavity 41 to move towards the second discharge port 43. The guide part 44 enables the pulp in the paper-plastic mixture to stay in the retention tank 45, preventing the pulp from continuing to move towards the second discharge port 43. The guide part 44 has a plurality of protrusions 442 on the guide surface 441. When the paper-plastic mixture moves to the guide surface 441 under the guidance of the guide part 44, the pulp will flow down the guide surface 441, while the plastic will contact the plurality of protrusions 442 and stay on the guide surface 441 under the action of friction between the two.

[0048] A drying element 9 is installed inside the guide portion 44. The drying element 9 can dry the residual moisture on the guide surface 441, reducing the probability of plastic adhering to the guide surface 441. In this embodiment, the drying element 9 preferably uses self-generated heat and heat transfer to dry the guide surface 441 of the guide portion 44.

[0049] Reference Figure 1 and Figure 3 A pneumatic component 10 is fixedly installed on the discharge hopper 7 at the second discharge port 43. The pneumatic component 10 has a suction function, which can drive the gas in the cavity 41 to flow out towards the second discharge port 43 and accelerate the gas flow rate. During the gas flow, it can carry out the plastic on the guide surface 441 and collect it in the container 6. In this embodiment, the pneumatic component 10 is preferably a blower.

[0050] The implementation principle of a paper-plastic separation device according to an embodiment of this application is as follows:

[0051] After the paper-plastic product is crushed into paper sheets, the paper sheets are fed into the cylinder 21. The paper sheets come into full contact with water and are initially separated into paper and plastic under the stirring of the stirring component 24. Then, the paper-water mixture enters the cavity 41 of the separation cylinder 4, where the second separation component 3 further separates the paper and plastic into pulp and plastic. The pulp flows out into the container 6 and is collected under the filtration of the filter element 8. The plastic stays on the guide surface 441 of the guide part 44 under the action of the second separation component 3. The drying component 9 reduces the adhesion strength between the plastic and the guide part 44. The operation of the second separation component 3 and the operation of the blowing component together form an airflow that blows the plastic out of the second discharge port 43 and collects it in the container 6, thus completing the paper-plastic separation.

[0052] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A paper-plastic separation device, characterized in that, The assembly includes a frame (1), a separation cylinder (4), a first separation component (2), and a second separation component (3). The separation cylinder (4) is horizontally mounted on the frame (1). The separation cylinder (4) has a cavity (41) inside. The second separation component (3) includes a rotating shaft (32) and a first driving member (33) for driving the rotating shaft (32) to rotate. The rotating shaft (32) is coaxially mounted with the separation cylinder (4), and the rotation axis (32) line of the rotating shaft (32) coincides with its own axis. Several blades (31) are mounted on the rotating shaft (32), and the blades (31) are inclined to the axis of the rotating shaft (32). The first separation component (2) is disposed at one end of the separation cylinder (4). The first separation component (2) includes a cylinder body (21), a water spraying component (23) for wetting the paper, and a stirring component (24) for separating the paper and the plastic. The cylinder body (21) is connected to the separation cylinder (4), and an inlet is provided at the end of the cylinder body (21) away from the separation cylinder (4). The bottom of the separation cylinder (4) is provided with a first discharge port (42) and a second discharge port (43) communicating with the cavity (41). The second discharge port (43) is located at the end of the separation cylinder (4) away from the first separation component (2).

2. The paper-plastic separation device according to claim 1, characterized in that, The stirring assembly (24) includes a stirring element (241) and a second driving element (242) for driving the stirring element (241) to rotate. The stirring element (241) is located inside the cylinder (21) and is rotatably connected to the cylinder (21). The second driving element (242) is located outside the cylinder (21) and is fixedly connected to the cylinder (21).

3. The paper-plastic separation device according to claim 1, characterized in that, A valve (22) is provided between the cylinder (21) and the separation cylinder (4). The water spray assembly (23) includes a water tank (231), a water inlet pipe (232), and a water pump (233). The water tank (231) and the cylinder (21) are connected through the water inlet pipe (232). The water pump (233) is located at one end of the water inlet pipe (232) near the cylinder (21).

4. The paper-plastic separation device according to claim 1, characterized in that, The separation cylinder (4) is provided with a filter element (8), which covers the first discharge port (42). The filter element (8) has several filter holes (81) for pulp to pass through.

5. A paper-plastic separation device according to claim 4, characterized in that, The blade (31) is provided with a brush body (311) at the end away from the rotation axis (32), and the brush body (311) is in contact with the cavity wall of the cavity (41).

6. The paper-plastic separation device according to claim 1, characterized in that, The separating cylinder (4) has a guide section (44) in the cavity (41), the guide section (44) is located between the first discharge port (42) and the second discharge port (43), and the end of the guide section (44) near the first discharge port (42) forms a stagnation groove for the paper water mixture to stay.

7. A paper-plastic separation device according to claim 6, characterized in that, The guide part (44) has a guide surface (441), the guide surface (441) is inclined, and the end of the guide surface (441) near the first discharge port (42) is an inclined lower end. The guide part (44) has a plurality of protrusions (442) on the guide surface (441).

8. A paper-plastic separation device according to claim 7, characterized in that, The separation cylinder (4) is also provided with a drying component (9) for drying the guide surface (441).

9. A paper-plastic separation device according to claim 7, characterized in that, The separator (4) is also provided with a pneumatic component (10) at one end near the second discharge port (43) for driving the plastic out of the second discharge port (43).

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