Negative pressure suction filtration device for silver paste

Abstract

The utility model relates to the technical field of slurry filtration, in particular to a negative pressure suction filtration device for silver slurry, which comprises a pre-filtration material barrel and a post-filtration material barrel, the pre-filtration material barrel is arranged above the post-filtration material barrel, the bottom of the pre-filtration material barrel is fixedly connected with a fixing ring, and the bottom of the post-filtration material barrel is fixedly connected with a suction nozzle. The top of the filtered material barrel is fixedly connected with a bearing ring, and a silica gel sealing ring is arranged between the fixing ring and the bearing ring. According to the utility model, through the cooperation of the connecting rod and the fixing sleeve, the two protruding sleeves can be rapidly installed on the two sides of the fixing ring and the bearing ring, and the pressing rod and the fixing sleeve are locked together, so that the pressing rod and the fixing sleeve can be tightly pressed, and the material cylinder can be conveniently and rapidly fixed. Therefore, the pre-filtering material barrel, the filter screen, the stainless steel mesh plate, the flow guide funnel and the post-filtering material barrel can be quickly assembled together in the vertical direction.

Description

Technical Field

[0001] The utility model relates to the technical field of slurry filtration, in particular to a negative pressure suction filtration device for silver paste slurry. Background Technique

[0002] Silver paste is a kind of slurry. It is a slurry for making silver electrodes, which is prepared from silver or its compounds, fluxes, binders and diluents. During the preparation of silver paste, it is necessary to filter the silver paste to obtain qualified silver paste.

[0003] In the prior art, such as a slurry automatic filtration device proposed in the patent application number "CN201220661879.0", it includes a pre-filter slurry storage tank and a post-filter slurry storage tank connected to it. Both the pre-filter slurry storage tank and the post-filter slurry storage tank are sealed; the pre-filter slurry storage tank and the post-filter slurry storage tank are separated by a perforated backing plate, and a filter screen is laid on the backing plate; a vacuum extraction port is opened on the post-filter slurry storage tank.

[0004] However, in the above patent application, the assembly of the pre-filter slurry storage tank and the post-filter slurry storage tank is complex, which is not convenient for quickly assembling and separating between the pre-filter slurry storage tank and the post-filter slurry storage tank connected to it, and is not convenient for cleaning the slurry filtered inside the post-filter slurry storage tank. Content of the Utility Model

[0005] The purpose of the utility model is to provide a negative pressure suction filtration device for silver paste slurry to solve the problems raised in the above background technique.

[0006] The purpose of the utility model can be realized by the following technical solutions:

[0007] A negative pressure suction filtration device for silver paste slurry includes a pre-filter material cylinder and a post-filter material cylinder. The pre-filter material cylinder is arranged above the post-filter material cylinder. A fixed ring is fixedly connected to the bottom of the pre-filter material cylinder, and a bearing ring is fixedly connected to the top of the post-filter material cylinder. A silica gel sealing ring is arranged between the fixed ring and the bearing ring.

[0008] A filter screen, a stainless steel mesh plate and a diversion funnel are sequentially arranged from top to bottom between the pre-filter material cylinder and the post-filter material cylinder, which are used to screen out the macromolecular components in the slurry. The stainless steel mesh plate is used to support the filter screen, and the diversion funnel is used to divert the filtered slurry into the interior of the post-filter material cylinder. A vacuum pump interface is arranged on one side of the post-filter material cylinder.

[0009] Preferably, a first annular bearing groove is opened at the top of the bearing ring, and a bearing ring matched with the first annular bearing groove is fixedly connected to the periphery of the top of the diversion funnel.

[0010] Preferably, a second annular bearing groove is formed at the top of the bearing ring, and both the stainless steel mesh plate and the diversion funnel are arranged inside the second annular bearing groove.

[0011] Preferably, arc-shaped mounting sleeves are arranged on both sides of the fixing ring and the bearing ring. The top and bottom of the inner wall of the arc-shaped mounting sleeve are inclined to position the fixing ring and the bearing ring together.

[0012] Preferably, convex sleeves are fixedly connected to both ends of the top of the two arc-shaped mounting sleeves. A pressing rod is arranged on one side of the convex sleeve. One end of the pressing rod is fixedly connected to a connecting rod. The connecting rod is threaded at the end away from the pressing rod. One end of the connecting rod sequentially penetrates through the two convex sleeves and is threadedly connected to a fixed sleeve.

[0013] Preferably, anti-slip grooves are arranged on the outer surfaces of the pressing rod and the fixed sleeve, and a hoisting auxiliary hole is formed in the connecting rod.

[0014] Advantages of the present utility model:

[0015] Through the cooperation of the connecting rod and the fixed sleeve, the present utility model can quickly install the two convex sleeves on both sides of the fixing ring and the bearing ring, lock the pressing rod and the fixed sleeve together, so that the pre-filter material cylinder, the filter screen, the stainless steel mesh plate, the diversion funnel and the post-filter material cylinder can be quickly assembled together in the vertical direction. By separating the connecting rod and the fixed sleeve, the convex sleeve can be removed. At this time, the pre-filter material cylinder and the post-filter material cylinder can be separated, which is convenient for cleaning the slurry inside the post-filter material cylinder. Description of the drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings;

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is the present utility model Figure 1 a schematic diagram of the structure of the connecting rod part;

[0019] Figure 3 is the present utility model Figure 1 a cross-sectional view of the post-filter material cylinder;

[0020] Figure 4 is the present utility model Figure 2 an enlarged view of part A;

[0021] Figure 5is the present utility model Figure 4 Disassembly schematic diagram of the pre-filter material cylinder and the post-filter material cylinder in it.

[0022] The reference numerals in the figure are as follows:

[0023] 1. Pre-filter material cylinder, 101. Fixed ring, 2. Post-filter material cylinder, 201. Bearing ring, 3. Silicone rubber sealing ring, 4. Filter net, 5. Stainless steel mesh plate, 6. Flow guiding funnel, 7. Vacuum pump interface, 8. First annular bearing groove, 9. Bearing ring, 901. Second annular bearing groove, 10. Convex sleeve, 11. Compression rod, 12. Connecting rod, 13. Fixed sleeve, 14. Hoisting auxiliary hole, 15. Arc-shaped mounting sleeve. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0025] A negative pressure suction filtration device for silver paste slurry, comprising a pre-filter material cylinder 1 and a post-filter material cylinder 2. The pre-filter material cylinder 1 is arranged above the post-filter material cylinder 2. A fixed ring 101 is fixedly connected to the bottom of the pre-filter material cylinder 1, and a bearing ring 201 is fixedly connected to the top of the post-filter material cylinder 2. A silicone rubber sealing ring 3 is arranged between the fixed ring 101 and the bearing ring 201.

[0026] A filter net 4, a stainless steel mesh plate 5 and a flow guiding funnel 6 are sequentially arranged from top to bottom between the pre-filter material cylinder 1 and the post-filter material cylinder 2 for screening out macromolecular components in the slurry. The stainless steel mesh plate 5 is used to provide support for the filter net 4, and the flow guiding funnel 6 is used to guide the filtered slurry into the interior of the post-filter material cylinder 2. A vacuum pump interface 7 is arranged on one side of the post-filter material cylinder 2.

[0027] As Figure 1 , the post-filter material cylinder 2 can be connected to an external negative pressure vacuum pump to evacuate the interior of the post-filter material cylinder 2 to form a negative pressure inside the post-filter material cylinder 2, thereby forming a negative pressure suction for the slurry. The stainless steel mesh plate 5 provides support for the filter net 4 to improve the compressive resistance of the filter net 4 and prevent the filter net 4 from deforming under pressure. The aperture of the stainless steel mesh plate 5 is 2CM, which will not hinder the slurry flowing through the filter net 4. The filter net 4 is a 200 - 400 mesh filter net.

[0028] A first annular bearing groove 8 is formed at the top of the bearing ring 201, and a bearing ring 9 that is used in cooperation with the first annular bearing groove 8 is fixedly connected to the periphery of the top of the diversion funnel 6.

[0029] As Figure 3 , Figure 4 and Figure 5 , when the entire filtering device is assembled together, the bearing ring 9 will be snapped into the first annular bearing groove 8 to provide support for the diversion funnel 6, so that the slurry falling from the upper filter screen 4 will ultimately pass through the diversion funnel 6.

[0030] A second annular bearing groove 901 is formed at the top of the bearing ring 9, and both the stainless steel mesh plate 5 and the diversion funnel 6 are arranged inside the second annular bearing groove 901.

[0031] As Figure 3 , Figure 4 and Figure 5 , the stainless steel mesh plate 5 and the diversion funnel 6 are aligned vertically and are both arranged inside the second annular bearing groove 901, so that the bearing ring 9 provides support for the stainless steel mesh plate 5, and the stainless steel mesh plate 5 provides support for the diversion funnel 6.

[0032] Arc-shaped mounting sleeves 15 are arranged on both sides of the fixing ring 101 and the bearing ring 201, and the top and bottom of the inner wall of the arc-shaped mounting sleeve 15 are both inclined, and are used to position the fixing ring 101 and the bearing ring 201 together.

[0033] As Figure 3 and Figure 4 , the top and bottom of the inner wall of the arc-shaped mounting sleeve 15 are inclined planes, so that the arc-shaped mounting sleeve 15 can be more easily snapped into both sides of the fixing ring 101 and the bearing ring 201, and the fixing ring 101 and the bearing ring 201 are pressed and positioned together from both sides and in the up-and-down directions.

[0034] Both ends of the top of the two arc-shaped mounting sleeves 15 are fixedly connected with protruding sleeves 10, a pressing rod 11 is arranged on one side of the protruding sleeve 10, one end of the pressing rod 11 is fixedly connected with a connecting rod 12, the connecting rod 12 is threaded at the end far from the pressing rod 11, and one end of the connecting rod 12 sequentially passes through the two protruding sleeves 10 and is threadedly connected with a fixing sleeve 13.

[0035] As Figure 1 and Figure 2 , the protruding sleeve 10 is fixed above the arc-shaped mounting sleeve 15, and the protruding sleeve 10 has an opening for the connecting rod 12 to pass through.

[0036] Anti-slip grooves are arranged on the outer surfaces of both the pressing rod 11 and the fixing sleeve 13, and a hoisting auxiliary hole 14 is formed in the connecting rod 12.

[0037] AsFigure 1 and Figure 2 Through the anti-slip grooves, it is convenient to manually rotate the pressing rod 11 and the fixed sleeve 13. The external mechanism passes through the hoisting auxiliary hole 14, which can assist in the hoisting of the connecting rod 12 and drive the entire device to move.

[0038] The working principle of a negative pressure filtration device for silver paste slurry provided by the present utility model is as follows:

[0039] When filtering the slurry, the slurry is transported to the inside of the pre-filter material cylinder 1. Under the negative pressure in the post-filter material cylinder 2, the slurry moves down to the inside of the post-filter material cylinder 2 after passing through the filter screen of the filter screen 4.

[0040] When the pre-filter material cylinder 1, the filter screen 4, the stainless steel mesh plate 5, the diversion funnel 6 and the post-filter material cylinder 2 can be connected together in the vertical direction in sequence, the two arc-shaped mounting sleeves 15 can be clamped to both sides of the fixed ring 101 and the bearing ring 201. Then, the connecting rod 12 is threaded through the convex sleeve 10 and the fixed sleeve 13 to position the two arc-shaped mounting sleeves 15. The fixed ring 101 and the bearing ring 201 cannot be separated, so that the pre-filter material cylinder 1 and the post-filter material cylinder 2 are fixed together in the vertical direction, and the filter screen 4, the stainless steel mesh plate 5 and the diversion funnel 6 are extruded to realize the assembly of the entire device.

[0041] Compared with the related technology, a negative pressure filtration device for silver paste slurry provided by the present utility model has the following beneficial effects:

[0042] Through the cooperation of the connecting rod 12 and the fixed sleeve 13, the present utility model can quickly install the two arc-shaped mounting sleeves 15 to both sides of the fixed ring 101 and the bearing ring 201, lock the pressing rod 11 and the fixed sleeve 13 together, so that the pre-filter material cylinder 1, the filter screen 4, the stainless steel mesh plate 5, the diversion funnel 6 and the post-filter material cylinder 2 can be quickly assembled together in the vertical direction. By separating the connecting rod 12 and the fixed sleeve 13, the convex sleeve 10 can be removed. At this time, the pre-filter material cylinder 1 and the post-filter material cylinder 2 can be separated, which is convenient for cleaning the slurry inside the post-filter material cylinder 2.

[0043] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. A negative pressure suction filtration device for silver paste slurry, comprising a pre-filtration material cylinder (1) and a post-filtration material cylinder (2). The pre-filtration material cylinder (1) is arranged above the post-filtration material cylinder (2), and is characterized in that, A fixed ring (101) is fixedly connected to the bottom of the pre-filter material cylinder (1), and a bearing ring (201) is fixedly connected to the top of the post-filter material cylinder (2). A silica gel sealing ring (3) is arranged between the fixed ring (101) and the bearing ring (201); A filter screen (4), a stainless steel mesh plate (5) and a diversion funnel (6) are sequentially arranged from top to bottom between the pre-filter material cylinder (1) and the post-filter material cylinder (2) for screening out macromolecular components in the slurry. The stainless steel mesh plate (5) is used to support the filter screen (4), and the diversion funnel (6) is used to divert the filtered slurry into the interior of the post-filter material cylinder (2). A vacuum pump interface (7) is arranged on one side of the post-filter material cylinder (2).

2. The negative pressure suction filtration device for a silver paste slurry according to claim 1, wherein, A first annular bearing groove (8) is formed in the top of the bearing ring (201), and a bearing ring (9) that is used in cooperation with the first annular bearing groove (8) is fixedly connected to the periphery of the top of the diversion funnel (6).

3. The negative pressure suction filtration device for a silver paste slurry according to claim 2, characterized in that, A second annular bearing groove (901) is formed in the top of the bearing ring (9), and both the stainless steel mesh plate (5) and the diversion funnel (6) are arranged inside the second annular bearing groove (901).

4. The negative pressure suction filtration device for a silver paste slurry according to claim 1, wherein, Arc-shaped mounting sleeves (15) are arranged on both sides of the fixed ring (101) and the bearing ring (201). The top and bottom of the inner wall of the arc-shaped mounting sleeve (15) are both inclined to position the fixed ring (101) and the bearing ring (201) together.

5. The negative pressure suction filtration device for a silver paste slurry according to claim 1, wherein, Both ends of the top of the two arc-shaped mounting sleeves (15) are fixedly connected with raised sleeves (10). A pressing rod (11) is arranged on one side of the raised sleeve (10). One end of the pressing rod (11) is fixedly connected with a connecting rod (12). The connecting rod (12) is threaded at the end away from the pressing rod (11). One end of the connecting rod (12) sequentially penetrates through the two raised sleeves (10) and is threadedly connected with a fixed sleeve (13).

6. The negative pressure suction filtration device for a silver paste slurry according to claim 5, characterized in that, Anti-slip grooves are arranged on the outer surfaces of the pressing rod (11) and the fixed sleeve (13), and a hoisting auxiliary hole (14) is formed in the connecting rod (12).

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