Vacuum efficient filtering device for photovoltaic silver paste

Abstract

The utility model relates to the technical field of photovoltaic silver paste, and discloses a photovoltaic silver paste vacuum efficient filtering device which comprises an upper filter pressing assembly and a lower vacuum assembly, the bottom end of a special-shaped paste sample barrel is communicated with the interior of the lower vacuum assembly, and filter screen cloth is installed at the bottom end of the special-shaped paste sample barrel. And the upper filter pressing assembly is used for filter pressing of the abnormal slurry contained in the abnormal slurry sample barrel. According to the photovoltaic silver paste vacuum efficient filtering device provided by the utility model, the filter screen cloth can be quickly replaced according to different filtering requirements, and a negative pressure environment is provided for the interior of the abnormal paste sample barrel due to the arrangement of the lower vacuum assembly, so that the filtering efficiency is improved. And the device can be combined with a slurry multi-stage filtering device, so that efficient multi-stage filtering of the slurry is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic silver paste, in particular to a photovoltaic silver paste vacuum high-efficiency filtering device. Background Art

[0002] In the photovoltaic industry, especially for the battery printing industry, some dry pulp or exploded pulp is often produced during the screen printing process. It often takes a lot of manpower to filter the abnormal pulp produced by the production line, and the quality of the manually filtered pulp varies. There are often cases where the pulp is put on the line for the second time due to the poor quality of pulp filtration caused by the carelessness of employees. The current methods for filtering pulp mainly include:

[0003] (1) Manual filtration: This filtration method results in a large waste of human resources, low filtration efficiency, and long filtration time;

[0004] (2) Extrusion filtration: The slurry is squeezed through the filter screen by a pump to achieve filtration. This filtration method results in more slurry remaining in the machine, and the filtration product model is single.

[0005] Chinese patent CN216755638 U discloses a filtering device for photovoltaic silver paste processing, including a filter box, a drive motor a and a mounting ring, wherein the drive motor a is arranged above the filter box, a mounting ring is installed on one side of the inner wall of the filter box, a rotating rod is installed at the output end of the drive motor a, a stirring rod is installed at the bottom end of the rotating rod, a stirring blade is installed on one side of the surface of the stirring rod, a filter screen is connected to one side of the top of the mounting ring through a connecting shaft, and an extension plate is installed on one side of the surface of the filter screen. The filtration of this utility model utilizes the gravity of the silver paste to complete the filtration of the silver paste on the filter screen, and the filtration efficiency is still not high. Utility Model Content

[0006] In order to improve the above-mentioned problems, the utility model discloses a photovoltaic silver paste vacuum high-efficiency filtration device, which includes an upper filter press assembly and a lower vacuum assembly, the bottom end of the abnormal slurry sample barrel is connected to the lower vacuum assembly, and a filter cloth is installed at the bottom end of the abnormal slurry sample barrel, and the upper filter press assembly is used for filtering the abnormal slurry contained in the abnormal slurry sample barrel.

[0007] Preferably, it also includes a fixed base, the lower vacuum assembly is located on the base, and the upper filter press assembly is installed on the base through an integral bracket.

[0008] Preferably, the upper filter press assembly comprises:

[0009] The drive motor is installed on the horizontal section of the integral bracket; the integral bracket is vertically bent, the vertical section of the integral bracket is connected to the fixed base, and the drive motor is installed on the horizontal section of the integral bracket;

[0010] A spiral connecting rod, which is installed at the output end of the driving motor;

[0011] A threaded sleeve, the threaded sleeve is sleeved on the spiral connecting rod;

[0012] The press cake is connected to the bottom end of the threaded sleeve, and the press cake is slidably located in the sample barrel of the abnormal slurry.

[0013] Preferably, the upper filter press assembly further comprises:

[0014] A limit plate, which is installed on the surface of the driving motor;

[0015] Telescopic rods, two telescopic rods are symmetrically installed on the limit plate with the output end of the driving motor as the center;

[0016] Side guide plates, two side guide plates are installed opposite to each other on the side ends of the threaded sleeve, and two telescopic rods are connected to each side guide plate in a one-to-one correspondence.

[0017] Preferably, a filter press port is provided at the bottom end of the abnormal slurry sample barrel, a filter mesh cloth is laid on the bottom of the abnormal slurry sample barrel, an inner fixed sleeve is placed in the abnormal slurry sample barrel, the filter mesh cloth is clamped between the bottom end of the inner fixed sleeve and the bottom of the abnormal slurry sample barrel, and the pressed cake is slidably located in the inner fixed sleeve.

[0018] Preferably, an annular groove is provided on the outer edge of the press cake, a sealing ring is installed in the annular groove, and the sealing ring slides against the inner wall of the inner fixed sleeve.

[0019] Preferably, the lower vacuum assembly comprises:

[0020] An outer vacuum steel jacket is installed on the top of the fixed base, and the filter slurry holding barrel is placed in the outer vacuum steel jacket;

[0021] A reversible side support plate, wherein four reversible side support plates are installed in a circular array on the inner wall of the outer vacuum steel jacket near the top;

[0022] An upper sealing cover, which is threadedly connected to the top of the outer vacuum steel sleeve, has a central opening, and the bottom of the abnormal slurry sample barrel is penetrated by the central opening and is mounted on four flippable side support plates;

[0023] A vacuum pump, the vacuum inlet of the vacuum pump is connected to the outer vacuum steel sleeve through a rubber hose.

[0024] Preferably, a vacuum pump connection port is installed at the side end of the outer vacuum steel sleeve, the vacuum pump connection port is located below the flippable side support plate, and the rubber hose is connected to the vacuum pump connection port away from the vacuum pump end.

[0025] Preferably, sealing strips are installed on the top of the upper sealing cover and the inner wall of the central opening.

[0026] Preferably, a handle is installed at the side end of the abnormal slurry sample barrel near the top end.

[0027] Compared with the prior art, the utility model has the following advantages:

[0028] The utility model provides a photovoltaic silver paste vacuum high-efficiency filtration device, wherein an upper filter press component is used to provide pressure to a sample barrel for filtering abnormal slurry, thereby pressing the contained abnormal slurry out of the filter mesh cloth, and the filter mesh cloth can be easily replaced, so that when different pressures are provided, filter mesh cloths of different mesh sizes can be replaced to achieve different filtration speeds, and a filter mesh cloth with a low mesh size can speed up the filtration speed and quickly remove large particles of impurities such as battery cell fragments in the abnormal slurry, while a filter mesh cloth with a high mesh size can achieve a better filtration effect, and a lower vacuum component is used to provide negative pressure to the bottom end of the abnormal slurry sample barrel, thereby improving the filtration efficiency of the abnormal slurry in the abnormal slurry sample barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a schematic diagram of the structure of the utility model;

[0031] Figure 2 This is a schematic diagram of the structure of the upper filter press assembly and the lower vacuum assembly of the utility model;

[0032] Figure 3 for Figure 2 The enlarged view of the middle label A;

[0033] Figure 4 for Figure 2 The enlarged view of the label B;

[0034] Figure 5 for Figure 2 Enlarged view of the number C.

[0035] In the figure: 11. Upper filter press assembly; 12. Lower vacuum assembly; 13. Abnormal slurry sample barrel; 14. Filter cloth; 15. Fixed base; 16. Integral bracket; 17. Driving motor; 18. Screw connecting rod; 19. Threaded sleeve; 10. Press cake; 21. Limit plate; 22. Telescopic rod; 23. Side guide plate; 24. Inner fixed sleeve; 25. Outer vacuum steel sleeve; 26. Flippable side support plate; 27. Upper sealing cover; 28. Vacuum pump; 29. ​​Rubber hose; 20. Filter slurry holding barrel. DETAILED DESCRIPTION

[0036] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] Example

[0038] The utility model will be further described below in conjunction with the accompanying drawings.

[0039] like Figures 1 to 5 As shown, the present embodiment provides a photovoltaic silver paste vacuum high-efficiency filtration device, which includes an upper filter press assembly 11 and a lower vacuum assembly 12, the bottom end of the abnormal slurry sample barrel 13 is connected to the lower vacuum assembly 12, and a filter cloth 14 is installed at the bottom end of the abnormal slurry sample barrel 13, and the upper filter press assembly 11 is used to filter the abnormal slurry contained in the abnormal slurry sample barrel 13.

[0040] The working principle and beneficial effects of the above technical solution are:

[0041] The utility model discloses a photovoltaic silver paste vacuum high-efficiency filtering device, wherein the upper filter press assembly 11 is used to provide pressure to the sample barrel 13 for filtering abnormal slurry, thereby pressing the abnormal slurry contained therein out from the filter mesh cloth 14, and the filter mesh cloth 14 can be easily replaced, so that when different pressures are provided, the filter mesh cloths 14 of different meshes can be replaced to achieve different filtering speeds, and the low-mesh filter mesh cloth can speed up the filtering speed and quickly remove large particle impurities such as battery cell fragments in the abnormal slurry, while the high-mesh filter mesh cloth can achieve better filtering effects, and the lower vacuum assembly 12 is used to provide negative pressure to the bottom end of the abnormal slurry sample barrel 13, thereby improving the filtering efficiency of the abnormal slurry in the abnormal slurry sample barrel 13. The utility model provides a photovoltaic silver paste vacuum high-efficiency filtering device, wherein the filter mesh cloth 14 can be quickly replaced according to different filtering requirements, and the setting of the lower vacuum assembly 12 provides a negative pressure environment in the abnormal slurry sample barrel 13, thereby improving the filtering efficiency. The device can also be combined with a slurry multi-stage filtering device to achieve efficient multi-stage slurry filtration.

[0042] In one embodiment, a fixed base 15 is further included, the lower vacuum assembly 12 is located on the base 15 , and the upper filter press assembly 11 is installed on the base 15 through an integral bracket 16 .

[0043] The beneficial effects of the above technical solution are:

[0044] The provision of the fixed base 15 and the integral support 16 facilitates the integrated installation of the upper filter press assembly 11 and the lower vacuum assembly 12 together.

[0045] In one embodiment, the upper filter press assembly 11 comprises:

[0046] The drive motor 17, the integral bracket 16 is vertically bent, the vertical section of the integral bracket 16 is connected to the fixed base 15, and the drive motor 17 is installed on the horizontal section of the integral bracket 16;

[0047] A spiral connecting rod 18, which is mounted on the output end of the driving motor 17;

[0048] A threaded sleeve 19, wherein the threaded sleeve 19 is sleeved on the spiral connecting rod 18;

[0049] The press cake 10 and the bottom end of the threaded sleeve 19 are connected to the press cake 10 , and the press cake 10 is slidably located in the foreign slurry sample barrel 13 .

[0050] The working principle and beneficial effects of the above technical solution are:

[0051] The driving motor 17 works, thereby driving the spiral connecting rod 18 installed on its output end to rotate, and the spiral connecting rod 18 drives the threaded sleeve 19 sleeved thereon and the press cake 10 installed on the threaded sleeve 19 to move downward, and the press cake 10 is sent into the abnormal slurry sample barrel 13, thereby pressing the abnormal slurry contained in the abnormal slurry sample barrel 13 downward and filtering it, and the abnormal slurry is discharged from the bottom end of the abnormal slurry sample barrel 13 through the filter mesh cloth 14.

[0052] The specific length design of the spiral connecting rod 18 prevents the press cake 10 from damaging the filter cloth 14 .

[0053] In one embodiment, the upper filter press assembly 11 further includes:

[0054] A limit plate 21, the limit plate 21 is mounted on the surface of the driving motor 17;

[0055] Telescopic rods 22, two telescopic rods 22 are symmetrically installed on the limit plate 21 with the output end of the driving motor 17 as the center;

[0056] The side guide plates 23 are installed opposite to each other at the side ends of the threaded sleeve 19 , and the two telescopic rods 22 are connected to each side guide plate 23 in a one-to-one correspondence.

[0057] The working principle and beneficial effects of the above technical solution are:

[0058] The driving motor 17 works, thereby driving the spiral connecting rod 18 installed on its output end to rotate, and the spiral connecting rod 18 drives the threaded sleeve 19 sleeved thereon and the pressure cake 10 installed on the threaded sleeve 19 to move in the extension direction of the telescopic rod 22, and the pressure cake 10 is sent into the abnormal slurry sample barrel 13, thereby pressing down the abnormal slurry contained in the abnormal slurry sample barrel 13 to filter the abnormal slurry, and discharge the abnormal slurry from the bottom end of the abnormal slurry sample barrel 13 through the filter mesh cloth 14.

[0059] In one embodiment, a filter press port is provided at the bottom end of the abnormal slurry sample barrel 13, a filter mesh 14 is laid on the bottom of the abnormal slurry sample barrel 13, an inner fixed sleeve 24 is placed in the abnormal slurry sample barrel 13, and the filter mesh 14 is clamped between the bottom end of the inner fixed sleeve 24 and the bottom of the abnormal slurry sample barrel 13, and the press cake 10 is slidably located in the inner fixed sleeve 24.

[0060] The working principle and beneficial effects of the above technical solution are:

[0061] The abnormal slurry sample barrel 13 is made of stainless steel and is a sandwich design. The filter mesh cloth 14 at the bottom is fixed by the sandwich. Specifically, the filter mesh cloth 14 is laid on the bottom of the abnormal slurry sample barrel 13, and the inner fixing sleeve 24 is placed in the abnormal slurry sample barrel 13. The bottom end of the inner fixing sleeve 24 presses the filter mesh cloth 14, thereby completing the fixing of the filter mesh cloth 14 at the bottom of the abnormal slurry sample barrel 13. When the filter mesh cloth 14 needs to be replaced, the inner fixing sleeve 24 is taken out to complete the replacement of the filter mesh cloth 14. The filter mesh cloth 14 is easy to replace. According to the different filtration requirements of the abnormal slurry, a suitable filter mesh cloth 14 is selected for filtration.

[0062] By controlling the rotation speed of the driving motor 17, the pressing speed of the cake press 10 is controlled. Different pressing speeds of the cake press 10 are matched with filter cloths 14 of different mesh sizes to achieve different filtering speeds. Matching with a filter cloth of low mesh size can speed up the filtering speed and quickly remove large particles of impurities such as battery cell fragments in abnormal slurry, while matching with a filter cloth of high mesh size can achieve a better filtering effect.

[0063] In one embodiment, an annular groove is formed on the outer edge of the press cake 10 , a sealing ring is installed in the annular groove, and the sealing ring slides against the inner wall of the inner fixing sleeve 24 .

[0064] The beneficial effects of the above technical solution are:

[0065] The annular groove formed on the outer edge of the press cake 10 is used to install a sealing ring to ensure that abnormal slurry does not overflow upward during the filter pressing process.

[0066] In one embodiment, the lower vacuum assembly 12 includes:

[0067] An outer vacuum steel jacket 25 is installed on the top of the fixed base 15, and the filter slurry holding barrel 20 is placed in the outer vacuum steel jacket 25;

[0068] A reversible side support plate 26, wherein four reversible side support plates 26 are installed in a circular array on the inner wall of the outer vacuum steel jacket 25 near the top;

[0069] An upper sealing cover 27, the upper sealing cover 27 is threadedly connected to the top of the outer vacuum steel sleeve 25, a central opening is opened on the upper sealing cover 27, the bottom end of the abnormal slurry sample barrel 13 is penetrated by the central opening, and is mounted on four flippable side support plates 26;

[0070] A vacuum pump 28 , the vacuum inlet of the vacuum pump 28 is connected to the outer vacuum steel sleeve 25 through a rubber hose 29 .

[0071] The working principle and beneficial effects of the above technical solution are:

[0072] The bottom end of the abnormal slurry sample barrel 13 is supported by a flip-over side support plate 26 located on the inner wall of the outer vacuum steel jacket 25. The flip-over side support plate 26 is provided with four plates that can be flipped upward 90 degrees to a state parallel to the inner wall of the outer vacuum steel jacket 25 to facilitate the removal of the filtered slurry containing barrel 20 in the outer vacuum steel jacket 25.

[0073] The top end of the outer vacuum steel jacket 25 is threadedly connected to the upper sealing cover 27, so that the upper sealing cover 27 can be opened and closed. The upper sealing cover 27 is sleeved on the outside of the abnormal slurry sample barrel 13. When the upper sealing cover 27 is connected to the top end of the outer vacuum steel jacket 25, the position of the bottom end of the abnormal slurry sample barrel 13 in the outer vacuum steel jacket 25 is corrected.

[0074] A fixing buckle can also be provided on the outer side of the upper sealing cover 27, so that the upper sealing cover 27 and the outer vacuum steel sleeve 25 can be fixed without being connected by threads. The vacuum inlet of the vacuum pump 28 is connected to the outer vacuum steel sleeve 25 through a rubber hose 29 to provide a negative pressure environment to the outer vacuum steel sleeve 25.

[0075] Specifically, by driving the motor 17, the press cake 10 is raised to the highest position, and the upper sealing cover 27 is removed, and the abnormal slurry sample barrel 13 can be easily taken out. If the filter slurry holding barrel 20 is to be replaced simultaneously, the reversible side support plate 26 is turned up 90 degrees to make it parallel to the inner wall of the outer vacuum steel sleeve 25, and the filter slurry holding barrel 20 can be taken out to complete the replacement. Then, the abnormal slurry to be filtered is added to the abnormal slurry sample barrel 13, the reversible side support plate 26 is put back, and the abnormal slurry sample barrel 13 is placed on the reversible side support plate 26 again, and the upper sealing cover 27 is put back to start the driving motor 17 and the vacuum pump 28 to start filtering.

[0076] In one embodiment, a vacuum pump connection port is installed at the side end of the outer vacuum steel sleeve 25 , and the vacuum pump connection port is located below the flippable side support plate 26 , and the rubber hose 29 is connected to the vacuum pump connection port at the end away from the vacuum pump 28 .

[0077] In one embodiment, sealing strips are installed on the top of the upper sealing cover 27 and the inner wall of the central opening.

[0078] The beneficial effects of the above technical solution are:

[0079] Sealing strips are installed on the top of the upper sealing cover 27 and the inner wall of the central opening to meet the vacuum sealing requirement of the outer vacuum steel jacket 25.

[0080] In one embodiment, a handle is installed at the side end of the foreign slurry sample barrel 13 near the top end.

[0081] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A photovoltaic silver paste vacuum high-efficiency filtration device, characterized in that: The invention comprises an upper filter press component (11) and a lower vacuum component (12), wherein the bottom end of the abnormal slurry sample barrel (13) is connected to the lower vacuum component (12), a filter cloth (14) is installed at the bottom end of the abnormal slurry sample barrel (13), and the upper filter press component (11) is used for filtering the abnormal slurry contained in the abnormal slurry sample barrel (13).

2. A photovoltaic silver paste vacuum high-efficiency filtration device according to claim 1, characterized in that: It also includes a fixed base (15), the lower vacuum assembly (12) is located on the base (15), and the upper filter press assembly (11) is installed on the base (15) through an integral bracket (16).

3. A photovoltaic silver paste vacuum high-efficiency filtration device according to claim 2, characterized in that: The upper filter press assembly (11) comprises: The drive motor (17) is arranged in a vertically bent state, the vertical section of the integral support (16) is connected to the fixed base (15), and the drive motor (17) is installed on the horizontal section of the integral support (16); A spiral connecting rod (18), the spiral connecting rod (18) is installed at the output end of the driving motor (17); A threaded sleeve (19), wherein the threaded sleeve (19) is sleeved on the spiral connecting rod (18); The press cake (10) is connected to the bottom end of the threaded sleeve (19), and the press cake (10) is slidably located in the abnormal slurry sample barrel (13).

4. A photovoltaic silver paste vacuum high-efficiency filtration device according to claim 3, characterized in that: The upper filter press assembly (11) further comprises: A limit plate (21), the limit plate (21) is mounted on the surface of the drive motor (17); Telescopic rods (22), two telescopic rods (22) are symmetrically mounted on the limit plate (21) with the output end of the driving motor (17) as the center; Side guide plates (23), two side guide plates (23) are mounted opposite to each other at the side ends of the threaded sleeve (19), and two telescopic rods (22) are connected to each side guide plate (23) in a one-to-one correspondence.

5. A photovoltaic silver paste vacuum high-efficiency filtration device according to claim 3, characterized in that: A filter press port is provided at the bottom end of the abnormal slurry sample barrel (13), a filter cloth (14) is laid on the bottom of the abnormal slurry sample barrel (13), an inner fixed sleeve (24) is placed in the abnormal slurry sample barrel (13), the filter cloth (14) is clamped between the bottom end of the inner fixed sleeve (24) and the bottom of the abnormal slurry sample barrel (13), and the press cake (10) is slidably located in the inner fixed sleeve (24).

6. A photovoltaic silver paste vacuum high-efficiency filtration device according to claim 5, characterized in that: An annular groove is formed on the outer edge of the press cake (10), a sealing ring is installed in the annular groove, and the sealing ring slides against the inner wall of the inner fixing sleeve (24).

7. A photovoltaic silver paste vacuum high-efficiency filtration device according to claim 2, characterized in that: The lower vacuum assembly (12) comprises: an outer vacuum steel jacket (25) mounted on the top of a fixed base (15), a filter slurry holding barrel (20) placed in the outer vacuum steel jacket (25), four flippable side support plates (26) mounted in a circular array on the inner wall of the outer vacuum steel jacket (25) near the top, an upper sealing cover (27) threadedly connected to the top of the outer vacuum steel jacket (25), a central opening being provided on the upper sealing cover (27), a central opening being provided at the bottom end of the abnormal slurry sample barrel (13), and being mounted on the four flippable side support plates (26), and a vacuum inlet of a vacuum pump (28) being connected to the outer vacuum steel jacket (25) through a rubber hose (29).

8. A photovoltaic silver paste vacuum high-efficiency filtration device according to claim 7, characterized in that: A vacuum pump connection port is installed at the side end of the outer vacuum steel sleeve (25), and the vacuum pump connection port is located below the flippable side support plate (26). The end of the rubber hose (29) away from the vacuum pump (28) is connected to the vacuum pump connection port.

9. A photovoltaic silver paste vacuum high-efficiency filtration device according to claim 7, characterized in that: Sealing strips are installed on the top of the upper sealing cover (27) and the inner wall of the central opening.

10. The photovoltaic silver paste vacuum high-efficiency filtration device according to claim 1, characterized in that: A handle is installed at the side end of the abnormal slurry sample barrel (13) near the top end.

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