Battery-grade lithium carbonate filtering device capable of avoiding deposition

Abstract

The utility model relates to the technical field of lithium carbonate filtration, in particular to a battery grade lithium carbonate filtering device capable of avoiding deposition, which comprises a filtering tank and a filter element positioned in the filtering tank, a gas collecting pipe positioned above the filter element is arranged in the filtering tank, and a plurality of uniformly distributed blowing nozzles are mounted on the outer wall of the gas collecting pipe. The multiple blowing nozzles communicate with the interior of the gas collecting pipe through multiple short pipes, the upper end of the filtering tank abuts against an end cover, an air pump located on the left side of the gas collecting pipe is installed at the lower end of the end cover, and a first connecting opening is formed in the air outlet end of the lower end of the air pump; the outer wall of the gas collecting pipe is communicated with a second connecting port positioned above the plurality of blowing nozzles; the electric cylinder is started to drive the gas collecting pipe to move up and down in a reciprocating manner, and then the multiple blowing nozzles are driven to move up and down in a reciprocating manner, so that residues on an inner net of the filter element are cleaned in time, and filter cakes caused by deposition of the residues are further prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium carbonate filtering, in particular to a battery-grade lithium carbonate filtering device for avoiding deposition. Background Art

[0002] Lithium battery is one of the battery technologies with relatively stable chemical properties and characteristics and good service life decay on the market. During the production and preparation of lithium batteries, the carbon lithium raw materials need to be filtered to facilitate the preparation of carbon lithium carbonate. After long-term use, the lithium carbonate filter device will form a filter cake on the surface of the filter element. The filter cake is formed by the accumulation of filtered residues or impurities in the solution. When the thickness of the filter cake reaches a certain thickness, it will affect the filtering effect. In order to avoid deposition of the filter device, a battery-grade lithium carbonate filter device that avoids deposition is needed.

[0003] Existing battery-grade lithium carbonate filtering devices generally include a filter tank, a filter element mounting frame installed inside the filter tank, a filter element installed between the filter element mounting frames, a feed pipe and a discharge pipe. Its working principle is generally as follows: first, the solution is injected into the interior of the filter tank through the feed pipe, and then filtered through the filter element, and the filtered solution is then discharged through the discharge pipe.

[0004] The existing battery-grade lithium carbonate filtering device does not use a device to clean the residue in the inner net of the filter element in time, which easily leads to the formation of filter cake. When the thickness of the filter cake reaches a certain level, it will affect the filtering effect. Utility Model Content

[0005] The utility model aims to provide a battery-grade lithium carbonate filtering device which avoids deposition and has the characteristics of being convenient for timely cleaning of residues in the inner net of the filter element to prevent the generation of filter cakes.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a battery-grade lithium carbonate filtering device that avoids deposition, comprising a filter tank and a filter element located inside the filter tank, the interior of the filter tank is provided with an air collecting pipe located above the filter element, the outer wall of the air collecting pipe is installed with a plurality of evenly distributed blowing nozzles, and the plurality of blowing nozzles are connected to the interior of the air collecting pipe through a plurality of short tubes, the upper end of the filter tank is abutted with an end cover, the lower end of the end cover is installed with an air pump located on the left side of the air collecting pipe, the air outlet end of the lower end of the air pump is installed with a first connecting port, the outer wall of the air collecting pipe is connected with a second connecting port located above the plurality of blowing nozzles, and a ventilation hose is installed between the first connecting port and the second connecting port.

[0007] In order to facilitate the reciprocating up and down movement of the air pipe, as a preferred battery-grade lithium carbonate filter device for avoiding deposition in the present invention, an electric cylinder is installed on the upper end of the end cover, and the output end of the electric cylinder extends to the interior of the filter tank and is fixedly connected to the upper end of the air collecting pipe.

[0008] In order to facilitate the cleaning of the filter tank, as a preferred battery-grade lithium carbonate filter device for avoiding deposition of the utility model, the left and right sides of the end cover are fixedly connected with a first connecting plate, and the left and right sides of the outer wall of the filter tank are fixedly connected with a second connecting plate respectively abutting against the lower ends of the two first connecting plates, and the first connecting plate and the second connecting plate on the same side are detachably connected by bolts.

[0009] In order to facilitate the replacement of the filter element, as a preferred battery-grade lithium carbonate filter device that avoids deposition in the present invention, the upper ends of the left and right sides of the filter element are fixedly connected with filter element fixing blocks, and the outer wall of the filter tank is fixedly connected with limiting rings that are respectively abutted against the lower ends of the two filter element fixing blocks, and the two filter element fixing blocks are detachably connected to the left and right sides of the limiting rings by screws.

[0010] In order to improve the blowing effect, as a preferred battery-grade lithium carbonate filtering device for avoiding deposition of the utility model, the plurality of blowing nozzles are distributed in an outward and downward inclined manner.

[0011] In order to facilitate the filtering of impurities inside the air, as a preferred battery-grade lithium carbonate filter device that avoids deposition in the utility model, the air inlet end at the upper end of the air pump is fixedly connected with an air inlet pipe extending to the upper end of the end cover, and a filter cover is installed at the upper end of the air inlet pipe, and a filter plate is installed inside the filter cover.

[0012] In order to facilitate the discharge of impurities, as a preferred battery-grade lithium carbonate filtration device for avoiding deposition of the utility model, a slag discharge bucket is installed at the lower end of the filter tank, a slag discharge pipe is installed at the lower end of the slag discharge bucket, and a slag discharge valve is installed inside the slag discharge pipe.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] When the utility model is used, when the inner net of the filter element is to be cleaned, the air pump is first started to start working, and the gas will enter the interior of the air pump through the air inlet pipe and the filter cover, and then pass through the filter plate to filter the impurities in the air, the inhaled gas enters the ventilation hose through the first connection port, and then enters the interior of the air collecting pipe through the second connection port, and then is blown out from the multiple blowing nozzles tilted toward the lower outside along the multiple short tubes, and the electric cylinder is started at the same time, thereby driving the air collecting pipe to move back and forth up and down, and then driving the multiple blowing nozzles to move back and forth up and down, and the ventilation hose has sufficient length to allow the multiple blowing nozzles to enter the lower side of the filter element, so as to timely clean the residue in the inner net of the filter element, and further prevent the formation of filter cakes due to deposition. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front cross-sectional structural diagram of the utility model;

[0016] Figure 2 For the utility model Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 This is the external structure diagram of the gas collecting pipe and the blowing nozzle of the utility model;

[0018] Figure 4 This is a top view of the filter element of the utility model.

[0019] In the figure: 1. filter tank; 2. filter element; 3. air collecting pipe; 4. blowing nozzle; 5. short pipe; 6. end cover; 7. air pump; 8. first connection port; 9. second connection port; 10. ventilation hose; 11. electric cylinder; 12. first connection plate; 13. second connection plate; 14. bolt; 15. filter element fixing block; 16. limit ring; 17. air inlet pipe; 18. filter cover; 19. filter plate; 20. slag bucket; 21. slag discharge pipe; 22. slag discharge valve; 23. screw. DETAILED DESCRIPTION

[0020] See also Figures 1 to 4 A battery-grade lithium carbonate filtering device for avoiding deposition comprises a filter tank 1 and a filter element 2 located inside the filter tank 1, an air collecting pipe 3 located above the filter element 2 is arranged inside the filter tank 1, a plurality of evenly distributed blowing nozzles 4 are installed on the outer wall of the air collecting pipe 3, and the plurality of blowing nozzles 4 are connected with the interior of the air collecting pipe 3 through a plurality of short tubes 5, an end cover 6 is abutted on the upper end of the filter tank 1, an air pump 7 located on the left side of the air collecting pipe 3 is installed on the lower end of the end cover 6, a first connecting port 8 is installed on the air outlet end at the lower end of the air pump 7, a second connecting port 9 located above the plurality of blowing nozzles 4 is connected to the outer wall of the air collecting pipe 3, and a ventilation hose 10 is installed between the first connecting port 8 and the second connecting port 9.

[0021] In this embodiment: when the inner net of the filter element 2 is to be cleaned, the air pump 7 is first started to work, and the inhaled gas enters the ventilation hose 10 through the first connecting port 8, and then enters the interior of the gas collecting pipe 3 through the second connecting port 9, and is then blown out from the multiple blowing nozzles 4 through the multiple short tubes 5. At the same time, it can move back and forth up and down through the gas collecting pipe 3, thereby driving the multiple blowing nozzles 4 to move back and forth up and down. The ventilation hose 10 has a sufficient length to allow the multiple blowing nozzles 4 to enter the lower side of the filter element 2, so as to facilitate the timely cleaning of the residue in the inner net of the filter element 2, and further prevent the formation of filter cakes due to its deposition.

[0022] As a technical optimization solution of the utility model, an electric cylinder 11 is installed on the upper end of the end cover 6 , and the output end of the electric cylinder 11 extends to the interior of the filter tank 1 and is fixedly connected to the upper end of the gas collecting pipe 3 .

[0023] In this embodiment, an electric cylinder 11 is provided to drive the air collecting pipe 3 to move up and down reciprocatingly.

[0024] As a technical optimization solution of the utility model, the left and right sides of the end cover 6 are fixedly connected with a first connecting plate 12, and the left and right sides of the outer wall of the filter tank 1 are fixedly connected with a second connecting plate 13 which is respectively abutted against the lower ends of the two first connecting plates 12, and the first connecting plate 12 and the second connecting plate 13 on the same side are detachably connected by bolts 14.

[0025] In this embodiment, the first connecting plate 12 , the second connecting plate 13 and the bolts 14 are provided to facilitate the disassembly and assembly of the end cover 6 , and further facilitate the cleaning of the interior of the filter tank 1 .

[0026] As a technical optimization scheme of the utility model, the upper ends of the left and right sides of the filter element 2 are fixedly connected with filter element fixing blocks 15, and the outer wall of the filter tank 1 is fixedly connected with limiting rings 16 which are respectively abutted against the lower ends of the two filter element fixing blocks 15, and the two filter element fixing blocks 15 and the left and right sides of the limiting rings 16 are detachably connected by screws 23.

[0027] In this embodiment: a limiting ring 16 is provided to facilitate positioning of the filter element fixing block 15 and the filter element 2 , and a screw 23 is provided to facilitate replacement of the filter element 2 .

[0028] As a technical optimization solution of the present invention, a plurality of blowing nozzles 4 are distributed in an outward and downward inclined manner.

[0029] In this embodiment, the plurality of blowing nozzles 4 are distributed in an inclined manner toward the outer and lower sides, thereby making it easier to blow the residues in the inner net of the filter element 2 toward the outer and lower sides, thereby improving the effect of the blowing.

[0030] As a technical optimization solution of the utility model, the air inlet end of the upper end of the air pump 7 is fixedly connected with an air inlet pipe 17 extending to the upper end of the end cover 6, and a filter cover 18 is installed on the upper end of the air inlet pipe 17, and a filter plate 19 is installed inside the filter cover 18.

[0031] In this embodiment, an air intake pipe 17 and a filter cover 18 are provided so that gas can enter the interior of the air pump 7 along the air intake pipe 17 and the filter cover 18, and then a filter plate 19 is provided so as to filter impurities in the air.

[0032] As a technical optimization solution of the utility model, a slag discharge bucket 20 is installed at the lower end of the filter tank 1 , a slag discharge pipe 21 is installed at the lower end of the slag discharge bucket 20 , and a slag discharge valve 22 is installed inside the slag discharge pipe 21 .

[0033] In this embodiment, a slag discharge bucket 20 is provided to collect the blown impurities, and a slag discharge pipe 21 and a slag discharge valve 22 are provided to discharge the impurities inside the slag discharge bucket 20 .

[0034] Working principle: When the inner net of the filter element 2 is to be cleaned, first start the air pump 7 to start working. The gas will enter the interior of the air pump 7 along the air inlet pipe 17 and the filter cover 18, and then pass through the filter plate 19 to filter the impurities in the air. The inhaled gas enters the ventilation hose 10 along the first connecting port 8, and then enters the interior of the air collecting pipe 3 along the second connecting port 9, and then is blown out from the multiple blowing nozzles 4 obliquely to the outside and lower side along the multiple short tubes 5. At the same time, the electric cylinder 11 is started, which drives the air collecting pipe 3 to move back and forth up and down, and then drives the multiple blowing nozzles 4 to move back and forth up and down. The ventilation hose 10 has enough length to allow the multiple blowing nozzles 4 to enter the lower side of the filter element 2, so as to clean the residue in the inner net of the filter element 2 in time, and further prevent the formation of filter cakes due to deposition. Then the residue is blown to the inside of the slag discharge bucket 20, and then the slag discharge valve 22 is opened to discharge it.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery-grade lithium carbonate filtering device for avoiding deposition, comprising a filter tank (1) and a filter element (2) located inside the filter tank (1), characterized in that: The interior of the filter tank (1) is provided with an air collecting pipe (3) located above the filter element (2); the outer wall of the air collecting pipe (3) is installed with a plurality of evenly distributed blowing nozzles (4); the plurality of blowing nozzles (4) are connected to the interior of the air collecting pipe (3) through a plurality of short tubes (5); the upper end of the filter tank (1) is abutted with an end cover (6); the lower end of the end cover (6) is installed with an air pump (7) located on the left side of the air collecting pipe (3); the air outlet end of the lower end of the air pump (7) is installed with a first connecting port (8); the outer wall of the air collecting pipe (3) is connected with a second connecting port (9) located above the plurality of blowing nozzles (4); a ventilation hose (10) is installed between the first connecting port (8) and the second connecting port (9).

2. A battery-grade lithium carbonate filtration device for avoiding deposition according to claim 1, characterized in that: An electric cylinder (11) is mounted on the upper end of the end cover (6); an output end of the electric cylinder (11) extends to the interior of the filter tank (1) and is fixedly connected to the upper end of the gas collecting pipe (3).

3. A battery-grade lithium carbonate filtration device for avoiding deposition according to claim 1, characterized in that: The left and right sides of the end cover (6) are both fixedly connected with first connecting plates (12), and the left and right sides of the outer wall of the filter tank (1) are fixedly connected with second connecting plates (13) respectively abutting against the lower ends of the two first connecting plates (12), and the first connecting plates (12) and the second connecting plates (13) on the same side are detachably connected via bolts (14).

4. A battery-grade lithium carbonate filtration device for avoiding deposition according to claim 1, characterized in that: The upper ends of the left and right sides of the filter element (2) are fixedly connected to filter element fixing blocks (15), and the outer wall of the filter tank (1) is fixedly connected to limit rings (16) respectively abutting against the lower ends of the two filter element fixing blocks (15), and the left and right sides of the two filter element fixing blocks (15) are detachably connected to the limit rings (16) via screws (23).

5. A battery-grade lithium carbonate filtration device for avoiding deposition according to claim 1, characterized in that: The plurality of blowing nozzles (4) are distributed in an outwardly downwardly inclined manner.

6. A battery-grade lithium carbonate filtration device for avoiding deposition according to claim 1, characterized in that: An air inlet end at the upper end of the air pump (7) is fixedly connected to an air inlet pipe (17) extending to the upper end of the end cover (6); a filter cover (18) is installed at the upper end of the air inlet pipe (17); a filter plate (19) is installed inside the filter cover (18).

7. A battery-grade lithium carbonate filtration device for avoiding deposition according to claim 1, characterized in that: A slag discharge bucket (20) is installed at the lower end of the filter tank (1), a slag discharge pipe (21) is installed at the lower end of the slag discharge bucket (20), and a slag discharge valve (22) is installed inside the slag discharge pipe (21).

Images