Saline water flotation separation equipment for plastic recovery
By setting up a partition plate in the brine flotation equipment and using a blower feed pipe, the sorting of plastic sheets according to the density interval is realized, and the problems of cumbersome sorting steps and high cost in the prior art are solved, and the sorting efficiency is improved and the cost is reduced.
Patent Information
- Application Number
- CN202422122534.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-08-30
AI Technical Summary
The existing brine flotation technology can only use the current brine density as the sorting line, which makes the subsequent sorting steps cumbersome and costly, making it difficult to efficiently separate the sinking base material in plastic recycling.
A plastic recycling brine flotation separation equipment is designed, and the salt water recycling is divided into several partitions by setting up several partitions in the brine tank, and the raw materials are placed in different areas according to density using blowers and feed pipes. The gas flow energy is used to make sheet materials of different densities enter the partition area according to density intervals.
The sorting efficiency is significantly improved, the subsequent sorting steps are reduced, the sorting cost is reduced, and the accuracy and adaptability of sorting are improved.
Smart Images
Figure CN223266051U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of plastic recycling equipment, and in particular to a plastic recycling brine flotation separation device. Background Art
[0002] In the process of plastic recycling, the crushed raw materials need to be continuously sorted to separate the various components in the raw materials into different categories. Brine flotation is an important step in the plastic recycling process. The brine flotation step mainly relies on density for sorting. Materials with a lower density than the current brine will float on the surface of the brine, and materials with a higher density than the current brine will sink to the bottom to form brine bottom materials.
[0003] It can be seen that brine flotation can only use the current brine density as the sorting line to separate the raw materials into two parts. Subsequently, several groups of sorting processes are still needed to further sort the raw materials according to density or weight, which requires high time and cost. Utility Model Content
[0004] In response to the shortcomings of the existing technology, the present application provides a plastic recovery brine flotation separation equipment. The solution provided in the embodiment of the present application can separate the brine sediment according to its own density, reducing the subsequent steps of sorting the brine sediment, significantly improving the sorting efficiency of the entire recovery process, and reducing the sorting cost of the entire recovery process.
[0005] The above-mentioned application objectives of this application are achieved through the following technical solutions:
[0006] A plastic recovery brine flotation separation device includes a brine pool with an open top and a feeder. The internal space of the brine pool includes a top space at the upper layer and a bottom space at the lower layer. The bottom space is provided with a plurality of partition plates, which divide the bottom space of the brine pool into a plurality of separation zones with open tops. The separation zones are arranged linearly.
[0007] The feeder includes a blower, a feed hopper, and a feed pipe with openings at both ends. The feed pipe is installed on the blower, one end of the feed pipe is connected to the air outlet of the blower, and the other end of the feed pipe is opened toward the brine pool. The feed pipe is located above the brine pool, and the feed hopper is installed on the top of the feed pipe. The internal space of the feed hopper is connected to the internal space of the feed pipe.
[0008] A drainage device is provided at the water inlet of the brine pool, and the extension line of the drainage device's drainage outlet and the extension line of the feeding pipe's discharge outlet both pass through several sorting areas in sequence.
[0009] Optionally, the widths of the several sorting zones are different.
[0010] Optionally, the widths of the plurality of sorting zones gradually increase in a direction away from the drainage device.
[0011] Optionally, two adjacent sorting areas are not connected, and the top openings of several sorting areas are connected to the top space.
[0012] Optionally, a plurality of discharge ports are provided at the bottom of the brine pool, and the plurality of discharge ports are respectively located at the bottom of a plurality of separation zones, and a blocking mechanism is detachably connected to each of the plurality of discharge ports.
[0013] Optionally, the bottom of the inner cavity of the brine pool has an inclined surface, and the distance between the inclined surface of the bottom of the inner cavity of the brine pool and the plane of the bottom of the brine pool gradually increases in the direction away from the discharge port.
[0014] In summary, this application has the following beneficial technical effects:
[0015] The solution provided in the embodiment of the present application can separate the brine sediment according to its own density, reducing the subsequent steps of sorting the brine sediment, significantly improving the sorting efficiency of the entire recycling process, and reducing the sorting cost of the entire recycling process. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic cross-sectional view of an embodiment of the present application;
[0017] Figure 2 It is a schematic front view of an embodiment of the present application;
[0018] Figure 3 It is a front view schematic diagram of an embodiment of the present application.
[0019] Reference numerals: 10, brine pool; 11, top space; 12, bottom space; 13, partition plate; 14, sorting area; 15, discharge port; 16, inclined surface;
[0020] 20. Feeder; 21. Blower; 22. Feed hopper; 23. Feed pipe;
[0021] 30. Drainage device;
[0022] 40. Blocking mechanism. DETAILED DESCRIPTION
[0023] The following is combined with Figure 1 -Attached Figure 3 This application is described in further detail.
[0024] The present invention provides a plastic recovery brine flotation separation device, comprising a brine pool 10 with an open top and a feeder 20. A drainage device 30 is provided at the water inlet of the brine pool 10. The drainage device 30 is used to continuously discharge brine of a specified Baume degree into the brine pool 10. The feeder 20 is used to deliver crushed raw material flakes into the brine pool 10.
[0025] The interior space of the salt water pool 10 includes a top space 11 at the upper layer and a bottom space 12 at the lower layer. When in use, the drainage device 30 discharges salt water into the salt water pool 10 so that the water level in the salt water pool 10 is located within the top space 11. The bottom space 12 of the salt water pool 10 is provided with a plurality of partitions 13. The plurality of partitions 13 divide the bottom space 12 of the salt water pool 10 into a plurality of selection areas 14 with open tops. The plurality of selection areas 14 are arranged linearly.
[0026] The feeder 20 includes a blower 21, a hopper 22, and a feed pipe 23 with openings at both ends. The feed pipe 23 is mounted on the blower 21. One end of the feed pipe 23 is connected to the air outlet of the blower 21, and the other end of the feed pipe 23 is open toward the brine pool 10. The feed pipe 23 is located above the brine pool 10. The hopper 22 is mounted on top of the feed pipe 23. The internal space of the hopper 22 is connected to the internal space of the feed pipe 23.
[0027] A drainage device 30 is provided at the water inlet of the brine pool 10 , and an extension line of the drainage outlet of the drainage device 30 and an extension line of the discharge outlet of the feed pipe 23 both pass through the plurality of sorting areas 14 in sequence.
[0028] The following is a further introduction based on specific usage scenarios.
[0029] During use, the operator injects brine into the brine pool 10 through the drainage device 30 so that the water level of the brine exceeds the bottom space 12. The operator then puts the crushed raw material flakes into the hopper 22. The material in the hopper 22 enters the feeding pipe 23 under the action of gravity.
[0030] The blower 21 is started, so that an air duct is formed in the feeding pipe 23 with the air outlet of the blower 21 pointing to the discharge port of the feeding pipe 23. The sheet material entering the feeding pipe 23 will be discharged from the feeding pipe 23 at a certain speed along the air duct.
[0031] Before the raw material flakes enter the feed pipe 23, they have generally undergone a pre-crushing and screening process, so that the shapes and sizes of the raw material flakes entering the feed pipe 23 are roughly the same. This is common knowledge in the art. In the process of the flakes falling into the feed pipe 23, the airflow driven by the blower 21 gives each flake roughly the same kinetic energy. It is easy to understand that when the size of each flake is roughly the same, the flakes with higher density have a heavier weight when the size is roughly the same. When the kinetic energy obtained by the airflow to each flake is roughly the same, the weight of the raw material flakes is roughly the same. Under the same conditions, the greater the density of the flakes, the shorter the distance they fly away from the discharge port of the feed pipe 23 when the airflow does not work, and the lower the density of the flakes, the longer the distance they fly away from the discharge port of the feed pipe 23 when the airflow does not work. In this way, through the feeding of the blower 21 and the feed pipe 23, the flakes will enter the brine pool 10 in different areas according to their own density, that is, the landing points of the flakes entering the brine pool 10 will be divided according to their own density, and flakes in different density ranges will enter the corresponding sorting area 14 according to their own density.
[0032] Judging from the results, the flakes that originally had several components of different densities distributed chaotically were separated according to different density ranges after passing through the feed pipe 23. Taking the brine sediment as an example, the submerged flakes were distributed at the bottom of several sorting areas 14 according to their own density. Compared with the brine sediment in which several components were mixed together in the prior art, the solution provided by the embodiment of the present application can at least separate the brine sediment according to its own density, reducing the subsequent steps of sorting the brine sediment, significantly improving the sorting efficiency of the entire recovery process, and reducing the sorting cost of the entire recovery process.
[0033] Of course, in the embodiment of the present application, the water level line in the brine pool 10 can also be located at the junction of the top space 11 and the bottom space 12, so that the sheets entering each sorting area 14 cannot move across the area. In this way, the brine floating material can fall into different sorting areas 14 according to its own density range, thereby achieving further sorting of the brine floating material, further improving the sorting efficiency of the entire recycling process, and reducing the sorting cost of the entire recycling process.
[0034] In a feasible specific implementation method of the embodiment of the present application, the widths of several sorting areas 14 are different, that is, the distances between the two partition plates 13 at the boundaries of several sorting areas 14 are different. In this way, the operator can adjust the density range of the flake material required to be enriched in the sorting area 14 by controlling the width of the sorting area 14, thereby achieving precise enrichment of the flake material, improving the accuracy of sorting and the adaptability of the sorting process, further improving the sorting efficiency of the entire recycling process, and reducing the sorting cost of the entire recycling process.
[0035] Furthermore, the widths of several sorting zones 14 gradually increase as they extend away from the drainage device 30. In actual use, flakes with higher density will quickly enter the brine pool 10 after leaving the feed pipe 23, while flakes with relatively lower density will slide a certain distance above the brine pool 10. The lighter the density of the single-component flakes, the larger the distribution range of the landing points. The widths of several sorting zones 14 gradually increase as they extend away from the drainage device 30, which can adapt to the distribution of the flake landing points, improve the accuracy of sorting, further improve the sorting efficiency of the entire recycling process, and reduce the sorting cost of the entire recycling process.
[0036] As a feasible specific implementation method of the embodiment of the present application, two adjacent sorting areas 14 are not connected, and the top openings of several sorting areas 14 are connected to the top space 11. In this way, the sediment at the bottom of the sorting area 14 will not move across areas, avoiding the mixing of sediment between different areas.
[0037] As a feasible specific implementation method of the embodiment of the present application, a number of discharge ports 15 are opened at the bottom of the brine pool 10, and the number of discharge ports 15 are respectively located at the bottom of a number of sorting areas 14. The number of discharge ports 15 can be detachably connected with a sealing mechanism 40. After the sorting is completed, the operator can quickly pack and collect the brine bottom material by removing the sealing mechanism 40. Furthermore, the bottom of the inner cavity of the brine pool 10 has a slope 16, and the distance between the slope 16 of the bottom of the inner cavity of the brine pool 10 and the bottom plane of the brine pool 10 gradually increases in the direction away from the discharge port 15. In this way, the brine bottom material can be more easily discharged from the sorting area 14, thereby improving the work efficiency of the operator.
[0038] The embodiments of this specific implementation method are all preferred embodiments of the present application and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. A plastic recovery brine flotation separation device, comprising a brine pool (10) with an open top and a feeder (20), characterized in that: The internal space of the salt water pool (10) includes a top space (11) in the upper layer and a bottom space (12) in the lower layer. The bottom space (12) is provided with a plurality of partition plates (13). The plurality of partition plates (13) divide the bottom space (12) of the salt water pool (10) into a plurality of separation areas (14) with top openings. The plurality of separation areas (14) are arranged linearly. The feeder (20) includes a blower (21), a feed hopper (22), and a feed pipe (23) with openings at both ends. The feed pipe (23) is installed on the blower (21). One end of the feed pipe (23) is open and connected to the air outlet of the blower (21). The other end of the feed pipe (23) is open toward the brine pool (10). The feed pipe (23) is located above the brine pool (10). The feed hopper (22) is installed on the top of the feed pipe (23). The internal space of the feed hopper (22) is connected to the internal space of the feed pipe (23). A drainage device (30) is provided at the water inlet of the brine pool (10), and an extension line of the drainage outlet of the drainage device (30) and an extension line of the discharge outlet of the feed pipe (23) pass through the plurality of separation zones (14) in sequence.
2. The plastic recovery brine flotation separation equipment according to claim 1, characterized in that: The widths of the several sorting zones (14) are different.
3. The plastic recovery brine flotation separation equipment according to claim 2, characterized in that: The widths of the plurality of sorting areas (14) gradually increase in a direction away from the drainage device (30).
4. The plastic recovery brine flotation separation equipment according to claim 1, characterized in that: Two adjacent sorting areas (14) are not connected, and the top openings of several sorting areas (14) are connected to the top space (11).
5. The plastic recovery brine flotation separation equipment according to claim 1, characterized in that: A plurality of discharge ports (15) are provided at the bottom of the salt water pool (10), and the plurality of discharge ports (15) are respectively located at the bottom of the plurality of sorting areas (14). The plurality of discharge ports (15) are detachably connected to a blocking mechanism (40).
6. The plastic recovery brine flotation separation equipment according to claim 5, characterized in that: The bottom of the inner cavity of the salt water pool (10) has an inclined surface (16), and the distance between the inclined surface (16) of the bottom of the inner cavity of the salt water pool (10) and the bottom plane of the salt water pool (10) gradually increases in a direction away from the discharge port (15).