An inner channel polishing grinding liquid recycling device

Abstract

This utility model discloses an internal flow channel polishing slurry recycling device, including a graded circulation device, a slurry storage tank, a polishing slurry stirring device, and an internal flow channel polishing powder cleaning device. The graded circulation device includes a graded filtration device, and its polishing slurry outlet is connected to the slurry storage tank via a pipeline. The internal flow channel polishing powder cleaning device is connected to the polishing slurry inlet of the graded circulation device via a pipeline. The waste outlet of the graded circulation device is connected to a waste liquid collection pool via a pipeline and then to an external treatment system. The slurry storage tank is connected to the polishing slurry stirring device via a pipeline. One end of the polishing slurry booster pump is connected to the internal flow channel polishing powder cleaning device via a pipeline, and the other end is connected to the polishing slurry stirring device via a pipeline. This utility model, in the internal flow channel polishing powder cleaning process, can maintain the stability, effectiveness, and continuity of the polishing slurry, ensuring its normal polishing function and preventing product scratches during processing. Simultaneously, it effectively improves the slurry utilization rate, reduces resource waste, and meets environmental protection requirements.

Description

Technical Field

[0001] This utility model belongs to the field of additive manufacturing technology and relates to an internal flow channel polishing slurry recycling device. Background Technology

[0002] Currently, a novel 3D biomimetic heat exchanger is being developed in fields such as aerospace engines, marine engineering equipment, and chemical engineering. Its manufacturing process combines advanced technologies such as additive manufacturing and composite welding. However, this manufacturing method may lead to the accumulation of dust, burrs, and other contaminants in the complex internal flow channels of the parts, adversely affecting their quality and reliability. To ensure the effective use of the parts, these contaminants must be thoroughly removed.

[0003] To address the need for surface finishing of internal flow channels, the current market primarily employs polishing slurry cleaning for powder removal and deburring. During this process, the polishing slurry needs to be recycled under specific conditions. However, as the polishing process progresses, the slurry may become contaminated with excessively large particles, sediments or agglomerated substances, as well as excessively fine powder generated due to wear. These issues not only reduce the cleaning effectiveness but may also affect the performance of the heat exchanger.

[0004] Therefore, in the polishing and cleaning process, it is necessary to take measures to filter out these undesirable impurities, including oversized particles and excessively fine powder, to ensure the cleanliness and effectiveness of the polishing slurry. This not only improves the cleaning quality of the parts but also extends the service life of the polishing slurry, thereby effectively reducing costs and improving overall production efficiency. Summary of the Invention

[0005] To achieve the above objectives, this utility model provides an internal flow channel polishing slurry recycling device, which solves the problem of performance degradation caused by impurities entering the polishing slurry during recycling in the prior art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an internal flow channel polishing slurry recycling device, including a graded circulation device, a slurry storage tank, a polishing slurry stirring device, and an internal flow channel polishing powder cleaning device. The graded circulation device is equipped with a graded filtration device, and the polishing slurry outlet of the graded circulation device is connected to the slurry storage tank through a pipe. The internal flow channel polishing and cleaning powder device is connected to the polishing slurry inlet of the graded circulation device via pipe two. The waste outlet of the graded circulation device is connected to the waste liquid collection tank via pipe three. The polishing slurry storage tank is connected to the polishing slurry stirring device via pipe four; The internal flow channel polishing powder cleaning device is connected to the polishing slurry booster pump via pipe five; the other output end of the polishing slurry booster pump is connected to the polishing slurry stirring device via pipe six.

[0007] Furthermore, the waste liquid collection tank is connected to an external treatment system.

[0008] Furthermore, a pneumatic ball valve assembly – valve one – is installed on the pipeline.

[0009] Furthermore, a pneumatic ball valve assembly – valve two – and a polishing slurry recovery pump are installed on the second pipeline.

[0010] Furthermore, a pneumatic ball valve assembly – valve three – is installed on the pipeline three.

[0011] Furthermore, the graded circulation device is equipped with a top cover.

[0012] Furthermore, the graded filtration device includes filter element one and filter element two.

[0013] Furthermore, filter element one and filter element two are respectively provided with filter element pressure strip one and filter element pressure strip two.

[0014] The beneficial effects of this utility model are: in the internal flow channel polishing and powder cleaning process, this utility model can maintain the stability, effectiveness and working continuity of the polishing slurry, ensure its normal polishing function, and avoid the product being scratched during processing; at the same time, it effectively improves the utilization rate of the polishing slurry, reduces resource waste, and meets environmental protection requirements. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the polishing slurry recycling device and system of this utility model.

[0017] Figure 2 This is a schematic diagram of the internal flow channel polishing and powder cleaning process.

[0018] Figure 3 This is a schematic diagram of the grinding fluid flow path.

[0019] Figure 4 This is a schematic diagram of a graded filtration device.

[0020] In the diagram, 1. Graded circulation device, 1-1. Filter element pressing strip one, 1-2. Filter element pressing strip two, 1-3. Top cover, 2. Polishing slurry outlet, 3-1. Pneumatic ball valve group - valve one, 3-2. Pneumatic ball valve group - valve two, 3-3. Pneumatic ball valve group - valve three, 4. Polishing slurry storage tank, 5. Polishing slurry stirring device, 6. Polishing slurry booster pump, 7. Internal flow channel polishing powder cleaning device, 8. Polishing slurry inlet, 9. Polishing slurry recovery pump, 10. Waste liquid collection pool, 11. Waste outlet, 12. Graded filtration device, 12-1. Filter element one, 12-2. Filter element two, 13. Pipe one, 14. Pipe two, 15. Pipe three, 16. Pipe four, 17. Pipe five, 18. Pipe six. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This utility model provides an internal flow channel polishing slurry recycling device, hereinafter referred to as the recycling device, such as... Figure 1-4 As shown, it includes a graded circulation device 1, a grinding slurry storage tank 4, a polishing slurry stirring device 5, and an inner flow channel polishing powder cleaning device 7. The graded circulation device 1 is equipped with a graded filtration device 12, and the polishing slurry outlet 2 of the graded circulation device 1 is connected to the slurry storage tank 4 via pipe 13; a pneumatic ball valve assembly - valve 1 3-1 is installed on pipe 13; the inner channel polishing powder cleaning device 7 is connected to the polishing slurry inlet 8 of the graded circulation device 1 via pipe 2 14; a pneumatic ball valve assembly - valve 2 3-2 and a polishing slurry recovery pump 9 are installed on pipe 2 14; the waste outlet 11 of the graded circulation device 1 is connected to the waste liquid collection tank 10 via pipe 3 15; the waste liquid collection tank 10 is connected to an external treatment system to treat the waste liquid discharged from the graded circulation device 1; a pneumatic ball valve assembly - valve 3 3-3 is installed on pipe 3 15; the slurry storage tank 4 is connected to the polishing slurry stirring device 5 via pipe 4 16; the inner channel polishing powder cleaning device 7 is connected to the polishing slurry booster pump 6 via pipe 5 17, and the other output end of the polishing slurry booster pump 6 is connected to the polishing slurry stirring device 5 via pipe 6 18.

[0023] Among them, the polishing slurry stirring device 5 is a mature product of Shaanxi Jiete Intelligent Technology Co., Ltd., model JTB-10 / 11, with a stirring tank capacity of 200 liters and a stirring motor of 1.1KW. The internal flow channel polishing powder cleaning device 7 is a mature polishing powder cleaning product of Shaanxi Jiete Intelligent Technology Co., Ltd., model JET100 / 10S, with a rated flow rate of 100 liters / minute, a cleaning pressure of 5 MPa, and a power of 11 kW.

[0024] The graded circulation device 1 is equipped with a top cover 1-3 for maintenance / replacement of the internal graded filtration device 12. The graded filtration device 12 includes filter element 12-1 and filter element 22-2. Filter element 12-1 and filter element 22-2 are respectively equipped with filter element pressing strip 1-1 and filter element pressing strip 1-2. Polishing slurry outlet 2 and polishing slurry inlet 8 are respectively located on the upper and lower right sides of the graded circulation device 1. This design utilizes gravity to achieve natural separation of clean slurry and impurities, and is compatible with the structure of the graded filtration device 12, effectively avoiding secondary pollution, improving filtration efficiency, optimizing slurry circulation performance, and reducing energy consumption and maintenance costs.

[0025] The internal flow channel polishing and powder cleaning process and the polishing slurry flow path of this utility model are as follows: Figure 2 , Figure 3 As shown, the polishing process and slurry flow path are as follows: The prepared slurry is loaded into the slurry storage tank 4. The slurry is then transported to the polishing slurry stirring device 5 through pipe 16. After the polishing slurry is fully stirred by the stirring device 5, the polishing slurry booster pump 6 pressurizes the slurry in the stirring device 5. The pressurized slurry is then transported to the inner flow channel polishing and cleaning device 7 through pipe 17. The high-pressure slurry polishes and cleans the parts in the inner flow channel polishing and cleaning device 7. The polishing slurry used for polishing and cleaning is then introduced by the polishing slurry recovery pump 9 through pipe 14 into the graded filter device 12 of the graded circulation device 1. After multi-stage filtration, the graded filtration device 12 filters out excessively large impurity particles in the polishing slurry. The discharged waste liquid is transported to the waste liquid collection tank 10 for treatment through pipeline 3 15. The filtered polishing slurry is then transported to the slurry storage tank 4 through pipeline 13 for storage. During automated production, this process is continuously cyclical, producing filtered polishing slurry for reuse in the inner flow channel polishing and cleaning device 7. In this process, the polishing slurry is a white corundum suspension with an abrasive particle size of 80 mesh (particle size 0.25mm~0.3mm). The optimal flow rate for the polishing and cleaning process is 5m / s~8m / s. After multiple cycles, the slurry temperature is controlled below 50℃.

[0026] The structure of this utility model's graded filtration device and its maintenance / replacement operation are as follows: Figure 4As shown, pneumatic ball valve groups 1-13, 2-14, and 3-15 are respectively installed on pipe 1, pipe 2, and pipe 3. Pneumatic ball valve group 3-1 controls the polishing slurry outlet 2 of the graded circulation device 1, pneumatic ball valve group 3-2 controls the polishing slurry inlet 8 of the graded circulation device 1, and pneumatic ball valve group 3-3 controls the waste outlet 11 of the graded circulation device 1. The graded filtration device 12 of the graded circulation device 1 includes two-stage filter elements, with a first-stage filtration accuracy of 1mm and a second-stage filtration accuracy of 250um. When replacing the filter element of the graded filtration device 12, pneumatic ball valve group 3-2 is closed to cut off the flow of polishing slurry, and pneumatic ball valve group 3-3 is opened to discharge the polishing slurry in the graded circulation device 1. After the polishing slurry in the grading circulation device 1 is drained, open the top cover 1-3 of the grading circulation device 1, loosen the filter element clamping strip 1-1, remove the filter element 12-1, loosen the filter element clamping strip 2-2, and remove the filter element 22-2. Then, place the new filter element 22-2 into the grading circulation device 1, tighten the filter element clamping strip 2-2, then place the filter element 12-1 in, tighten the filter element clamping strip 1-1, and finally lock the top cover 1-3 of the grading circulation device 1. The filter element replacement operation is complete. Then, close the pneumatic ball valve group - valve 3-3, open the pneumatic ball valve group - valve 2-2, activate the polishing slurry recovery pump 9, and the system returns to normal operation. The polishing slurry is recovered to the grading circulation device 1, achieving the purpose of reusing the polishing slurry, thereby reducing the inconvenience and time caused by cleaning the polishing slurry during polishing powder cleaning operations. Moreover, the filtered polishing slurry can be fully utilized and meets the environmental protection requirements for reuse.

[0027] The working principle of this utility model is as follows: In the internal flow channel polishing and powder cleaning process of additive manufacturing parts, the polishing slurry is conveyed to the graded circulation device 1 through the slurry storage tank 4, the polishing slurry stirring device 5, the polishing slurry booster pump 6, and the internal flow channel polishing and powder cleaning device 7. The graded circulation device 1 filters out excessively large polishing slurry particles in the slurry. The graded circulation device 1 then conveys the filtered polishing slurry to the slurry storage tank 4. When polishing and powder cleaning is performed, the recycling device recovers the filtered polishing slurry to the polishing slurry circulation pipeline for use in the internal flow channel polishing and powder cleaning unit. This reduces the inconvenience and time caused by cleaning the polishing slurry during polishing and powder cleaning, while also extending the service life of the machine and increasing the production capacity of the process.

[0028] The various embodiments in this specification are described in a related manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0029] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of protection of this utility model.

Claims

1. A device for recycling polishing slurry in an internal flow channel, comprising a graded circulation device (1), a slurry storage tank (4), a polishing slurry stirring device (5), and an internal flow channel polishing powder cleaning device (7), characterized in that, The graded circulation device (1) is equipped with a graded filtration device (12), and the polishing slurry outlet (2) of the graded circulation device (1) is connected to the slurry storage tank (4) through a pipe (13). The internal flow channel polishing and cleaning powder device (7) is connected to the polishing slurry inlet (8) of the second pipe (14) and the graded circulation device (1); The waste outlet (11) of the graded circulation device (1) is connected to the waste liquid collection tank (10) through pipe three (15); The grinding slurry storage tank (4) is connected to the polishing slurry stirring device (5) via pipe four (16); The internal flow channel polishing powder cleaning device (7) is connected to the polishing slurry booster pump (6) via pipe five (17); the other output end of the polishing slurry booster pump (6) is connected to the polishing slurry stirring device (5) via pipe six (18).

2. The internal flow channel polishing slurry recycling device according to claim 1, characterized in that, The waste liquid collection tank (10) is connected to an external treatment system.

3. The internal flow channel polishing slurry recycling device according to claim 1, characterized in that, A pneumatic ball valve assembly - valve one (3-1) is installed on the pipeline one (13).

4. The internal flow channel polishing slurry recycling device according to claim 1, characterized in that, The second pipeline (14) is equipped with a pneumatic ball valve assembly - valve two (3-2) and a polishing slurry recovery pump (9).

5. The internal flow channel polishing slurry recycling device according to claim 1, characterized in that, A pneumatic ball valve assembly - valve three (3-3) is installed on the pipeline three (15).

6. The internal flow channel polishing slurry recycling device according to claim 1, characterized in that, The graded circulation device (1) is equipped with a top cover (1-3).

7. The internal flow channel polishing slurry recycling device according to claim 1, characterized in that, The graded filtration device (12) includes filter element one (12-1) and filter element two (12-2).

8. The internal flow channel polishing slurry recycling device according to claim 7, characterized in that, The filter element one (12-1) and filter element two (12-2) are respectively provided with filter element pressure strip one (1-1) and filter element pressure strip two (1-2).

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