Multilayer centrifugal filter cartridge structure for sand polishing fluid

Abstract

A kind of multilayer centrifugal filter cartridge structure of sand polishing liquid filter, with a seat body, and is equipped with the centrifugal filter cartridge being connected with a rotating shaft in seat body, centrifugal filter cartridge is sequentially nested by an inner layer filter cartridge, a middle layer filter cartridge and an outer layer filter cartridge from inside to outside, and the screen aperture of inner layer filter cartridge is greater than the screen aperture of middle layer filter cartridge, the screen aperture of middle layer filter cartridge is greater than the screen aperture of outer layer filter cartridge, when rotating shaft drives centrifugal filter cartridge to rotate, sand polishing liquid injected in inner layer filter cartridge can be sequentially filtered by centrifugal force through inner layer filter cartridge, middle layer filter cartridge and outer layer filter cartridge, then, it is discharged outward by a flow guide channel arranged in seat body.The utility model discloses a structure design of layer-by-layer grading filtration, which can effectively filter out impurities in sand polishing liquid, ensure filtration efficiency and improve recovery efficiency, and the centrifugal filter cartridge is detachable, so that subsequent cleaning work is simpler and faster.

Description

Technical Field

[0001] This utility model relates to the composition and structure of a polishing fluid filter, and in particular to a multi-layer centrifugal filter cartridge structure for a sand polishing fluid filter. Background Technology

[0002] With technological advancements and design trends, most objects currently being polished are high-strength metals (such as titanium), necessitating the use of chemical polishing slurries. However, because chemical polishing slurries are prone to solidification and crystallization, recycling them requires faster and more thorough filtration to effectively reduce impurities and achieve reuse. Traditional polishing slurry filters generally suffer from low filtration efficiency and difficulty in cleaning, thus exhibiting significant shortcomings that require improvement.

[0003] Therefore, how to improve the above-mentioned problems is the primary issue that this utility model aims to solve. Utility Model Content

[0004] The main purpose of this utility model is to provide a multi-layer centrifugal filter cartridge structure for a sand polishing liquid filter. By adopting a layer-by-layer graded filtration structure design, it can effectively filter out impurities in the sand polishing liquid, ensure its filtration efficiency and improve recovery efficiency. In addition, the centrifugal filter cartridge is detachable, which makes subsequent cleaning work simpler and faster.

[0005] To achieve the aforementioned objectives, this utility model provides a multi-layer centrifugal filter cartridge structure for a sand polishing liquid filter, comprising:

[0006] A body having an interior chamber and a drive device on the body, the drive device having a rotating shaft extending into the chamber;

[0007] A centrifugal filter cartridge is rotatably housed in a chamber. The centrifugal filter cartridge is composed of at least an inner filter cartridge, a middle filter cartridge, and an outer filter cartridge, which are sequentially nested from the inside out. The inner filter cartridge, the middle filter cartridge, and the outer filter cartridge are each provided with filtration sieves. The sieve aperture of the inner filter cartridge is larger than that of the middle filter cartridge, and the sieve aperture of the middle filter cartridge is larger than that of the outer filter cartridge. A turntable is connected to the bottom of the centrifugal filter cartridge and is mounted opposite to a rotating shaft, so that the rotating shaft can synchronously drive the turntable and the centrifugal filter cartridge to rotate. Through the centrifugal force generated during its rotation, the polishing liquid injected into the inner filter cartridge is relatively agitated and filtered layer by layer through the sieves of the inner filter cartridge, the middle filter cartridge, and the outer filter cartridge. Then, it is discharged outward through a guide channel located at the bottom of the chamber.

[0008] Preferably, the chamber has an upward-facing opening, and a funnel-shaped top cover is installed over the opening. The top cover has an inlet that tapers downwards from the center of the chamber, and the inlet is aligned with the center of the centrifugal filter cartridge. Furthermore, a sand polishing liquid recovery pipeline can be installed above the top cover, and a mesh plate can be installed above the inlet.

[0009] Preferably, an outlet pipe is connected to the flow channel outside the housing. The outlet pipe has an inlet end connected to the flow channel, and a first branch end and a second branch end connected to the inlet end. The inlet end is provided with a one-way valve that only allows liquid in the flow channel to flow into the outlet pipe in one direction. A switching valve is provided at the junction of the first branch end and the second branch end. By controlling the switching valve, the polishing liquid discharged into the outlet pipe can be discharged outward through the first branch end. Furthermore, a water injection pipe can be arranged above the opening. The water injection pipe is used to inject clean water into the chamber for cleaning. During the cleaning process, by controlling the switching valve, the wastewater after cleaning can be discharged outward through the second branch end.

[0010] Preferably, the inner filter cartridge, the middle filter cartridge, and the outer filter cartridge are all cylindrical with open ends, and the bottom ends of the inner filter cartridge, the middle filter cartridge, and the outer filter cartridge are respectively locked to the top surface of the turntable by several screws at concentric intervals, so that a gap can be formed between the outer periphery of the inner filter cartridge, the middle filter cartridge, and the outer filter cartridge.

[0011] Preferably, the bottom surface of the turntable is provided with a plurality of radially arranged blades.

[0012] The above-mentioned objectives and advantages of this utility model can be readily understood from the detailed description and accompanying drawings of the selected embodiments below. Attached Figure Description

[0013] Figure 1 This is an exploded view of the present invention.

[0014] Figure 2 This is a three-dimensional view of the centrifugal filter cartridge of this utility model.

[0015] Figure 3 This is a three-dimensional cross-sectional view of the present invention.

[0016] Figure 4 This is a schematic diagram of the assembled structure of this utility model.

[0017] Figure 5 This is a schematic diagram illustrating the usage state of this utility model during layer-by-layer grading filtration.

[0018] Figure 6This is a schematic diagram of the flow path for recovering polishing fluid during the layer-by-layer filtration process of this utility model.

[0019] Figure 7 This is a schematic diagram of the cleaning water flow path during the cleaning process of this utility model. Detailed Implementation

[0020] like Figures 1-6 As shown, this utility model provides a multi-layer centrifugal filter cartridge structure for a sand polishing liquid filter, which mainly consists of a base 11 and a centrifugal filter cartridge 21 disposed inside the base 11, wherein:

[0021] The base 11 has an internal chamber 12 with an upward-facing opening 121. A funnel-shaped top cover 13 is mounted at the opening 121 of the chamber 12. The top cover 13 has an inlet 131 that tapers downwards from the center of the chamber 12. A drive device 14 is provided on one side of the base 11. The drive device 14 has a rotating shaft 141 extending from the center of the chamber 12. A flow channel 15 communicating with the outside is recessed on the bottom surface of the chamber 12. An outlet pipe 16 is connected to the flow channel 15 outside the base 11. The outlet pipe 16 has an inlet end 1 that connects to the flow channel 15. 61. A first branch end 162 and a second branch end 163 are connected to the inlet end 161. The first branch end 162 forms a sand polishing liquid recovery channel, while the second branch end 163 forms a cleaning water discharge channel. The inlet end 161 is provided with a one-way valve 17 that only allows liquid in the guide channel 15 to be discharged into the outlet pipe 16 in one direction. A switching valve 18 is provided at the junction of the first branch end 162 and the second branch end 163. By controlling the switching valve 18, the liquid discharged into the outlet pipe 16 can be selectively discharged outward through either the first branch end 162 or the second branch end 163. In this embodiment, the drive device 14 is composed of a motor disposed on the outer periphery of the base 11, and a pulley assembly 143 is connected between the output shaft 142 of the drive device 14 and the end of the rotating shaft 141, so that the drive device 14 can drive its rotating shaft 141 to rotate relative to each other when it is running.

[0022] The centrifugal filter cartridge 21 is rotatably housed in the chamber 12. The centrifugal filter cartridge 21 is a multi-layered filter cartridge structure formed by concentrically nesting an inner filter cartridge 22, a middle filter cartridge 23, and an outer filter cartridge 24 from the inside out. The inner filter cartridge 22, the middle filter cartridge 23, and the outer filter cartridge 24 are each cylindrical with open ends, and their bottom ends are... Several screws 25 are concentrically spaced and locked onto the top surface 261 of a turntable 26, so that a gap D can be formed between the outer periphery of the inner filter cartridge 22, the middle filter cartridge 23 and the outer filter cartridge 24 respectively. In addition, multiple radially arranged blades 27 are attached to the bottom surface 262 of the turntable 26, and an assembly hole 263 is opened at the center of the turntable 26, penetrating its top surface 261 and bottom surface 262.

[0023] Furthermore, the outer periphery of the inner filter cartridge 22, the middle filter cartridge 23, and the outer filter cartridge 24 are respectively provided with a plurality of filtration sieve holes. The sieve hole diameter of the inner filter cartridge 22 is larger than that of the middle filter cartridge 23, and the sieve hole diameter of the middle filter cartridge 23 is larger than that of the outer filter cartridge 24. This allows the centrifugal filter cartridge 21 to sequentially form a filtration layer of coarse filtration, medium filtration, and fine filtration from the inside out. It is mounted on the rotating shaft 141 with the assembly holes 263 of the turntable 26 facing each other, so that the top cover 13... The inlet 131 can be aligned with the center of the centrifugal filter cartridge 21. When the rotating shaft 141 rotates to synchronously drive the turntable 26 and the centrifugal filter cartridge 21 to rotate, the centrifugal force generated during its rotation will cause the sand polishing liquid injected into the inner filter cartridge 22 to be thrown and filtered layer by layer through the sieve holes of the inner filter cartridge 22, the middle filter cartridge 23 and the outer filter cartridge 24. Then, it will be discharged outward through the guide channel 15 at the bottom of the chamber 12 via the first branch end 162.

[0024] In practical use, the present invention, composed of the above-described structure, is as follows: Figure 5 , 6As shown, by placing a sand polishing liquid recovery pipeline 31 above the top cover 13, the unfiltered sand polishing liquid after use can be injected downwards into the inner filter cartridge 22 through the injection port 131 of the top cover 13 for layer-by-layer grading filtration, and the filtered sand polishing liquid can be discharged outwards through the first branch end 162 by controlling the switching valve 18. In practical applications, a mesh plate 19 can be further installed above the inlet 131 to perform preliminary filtration of the sand polishing liquid. Under the centrifugal force of the rotating shaft 141 driving the turntable 26 and the centrifugal filter cartridge 21 to rotate synchronously, the sand polishing liquid in the inner filter cartridge 22 can be relatively thrown through the inner filter cartridge 22, the middle filter cartridge 23 and the outer filter cartridge 24 for layer-by-layer filtration. This not only effectively removes impurities from the sand polishing liquid, which is beneficial for recycling and reuse, but also helps to maintain the stable operation of the entire filtration system. It avoids a significant drop in the efficiency of the filtration system due to a large influx of impurities, ensuring its filtration performance. Therefore, it is suitable for the recovery of sand polishing liquid from high-strength metals.

[0025] Furthermore, during the rotation of the centrifugal filter cartridge 21, the filtered polishing liquid ejected from the outer periphery of the outer filter cartridge 24 will flow downwards along the inner wall of the chamber 12 into the guide channel 15. At this time, the blades 27 provided on the bottom surface 262 of the turntable 26 will also rotate with the turntable 26, thereby pressurizing the polishing liquid in the guide channel 15, so that the polishing liquid filtered by the centrifugal filter cartridge 21 can be discharged from the first branch end 162 at an accelerated speed, greatly improving its recovery efficiency.

[0026] When cleaning the centrifugal filter cartridge 21, the user only needs to remove the centrifugal filter cartridge 21 along with its rotating disc 26 from the rotating shaft 141. Then, clean water can be injected into the chamber 12 through a water inlet pipe 41 located above the opening 121 for cleaning. During the cleaning process, if... Figure 7 As shown, by controlling the switching valve 18, the wastewater after cleaning can be discharged outward through the second branch end 163, thereby achieving the purpose of separating the recovered sand polishing liquid from the wastewater after cleaning. In addition, after the centrifugal filter cartridge 21 is removed, it is only necessary to release the screws 25 that lock the filter cartridges of each layer to easily and quickly complete the disassembly of the inner filter cartridge 22, the middle filter cartridge 23 and the outer filter cartridge 24, making the subsequent cleaning work simpler and faster.

[0027] The above embodiments are disclosed only to illustrate the present utility model and are not intended to limit the present utility model. Therefore, any changes in values ​​or substitutions of equivalent components should still fall within the scope of the present utility model.

[0028] In conclusion, since this invention can clearly demonstrate to those skilled in the art that it can achieve the aforementioned objectives, it complies with the provisions of the Patent Law, and therefore an application is filed in accordance with the law.

Claims

1. A multi-layer centrifugal filter cartridge structure for a sand polishing liquid filter, characterized in that, It contains: A body having an interior chamber and a drive device on the body, the drive device having a rotating shaft extending into the chamber; A centrifugal filter cartridge is rotatably housed in a chamber. The centrifugal filter cartridge is composed of at least an inner filter cartridge, a middle filter cartridge, and an outer filter cartridge, which are sequentially nested from the inside out. The inner filter cartridge, the middle filter cartridge, and the outer filter cartridge are each provided with filtration sieves. The sieve aperture of the inner filter cartridge is larger than that of the middle filter cartridge, and the sieve aperture of the middle filter cartridge is larger than that of the outer filter cartridge. A turntable is connected to the bottom of the centrifugal filter cartridge and is mounted opposite to a rotating shaft, so that the rotating shaft can synchronously drive the turntable and the centrifugal filter cartridge to rotate. Through the centrifugal force generated during its rotation, the polishing liquid injected into the inner filter cartridge is relatively agitated and filtered layer by layer through the sieves of the inner filter cartridge, the middle filter cartridge, and the outer filter cartridge. Then, it is discharged outward through a guide channel located at the bottom of the chamber.

2. The multi-layer centrifugal filter cartridge structure of the sand polishing liquid filter as described in claim 1, characterized in that: The chamber has an upward opening, and a funnel-shaped top cover is installed at the opening of the chamber. The top cover has an inlet that tapers downwards from the center of the chamber, and the inlet is aligned with the center of the centrifugal filter cartridge.

3. The multi-layer centrifugal filter cartridge structure of the sand polishing liquid filter as described in claim 2, characterized in that: A sand polishing fluid recovery pipeline is located above the top cover, and a mesh plate is installed above the injection port, so that the sand polishing fluid can be filtered through the mesh plate before being injected into the inner filter cartridge through the injection port.

4. The multi-layer centrifugal filter cartridge structure of the sand polishing liquid filter as described in claim 3, characterized in that: The body is connected to the flow channel by an outlet pipe. The outlet pipe has an inlet end connected to the flow channel, and a first branch end and a second branch end connected to the inlet end. The inlet end is provided with a one-way valve that only allows liquid in the flow channel to flow into the outlet pipe in one direction. A switching valve is provided at the junction of the first branch end and the second branch end. By controlling the switching valve, the sand polishing liquid discharged into the outlet pipe can be discharged outward through the first branch end.

5. The multi-layer centrifugal filter cartridge structure of the sand polishing liquid filter as described in claim 4, characterized in that: A water injection pipe is located above the opening. The water injection pipe is used to inject clean water into the chamber for cleaning. During the cleaning process, the wastewater after cleaning can be discharged outward from the second branch end by controlling the switching valve.

6. The multi-layer centrifugal filter cartridge structure of the sand polishing liquid filter as described in claim 1, characterized in that: The inner filter cartridge, the middle filter cartridge, and the outer filter cartridge are all cylindrical with open ends. The bottom ends of the inner filter cartridge, the middle filter cartridge, and the outer filter cartridge are respectively locked to the top surface of the turntable by several screws in a concentric circle, so that a gap can be formed between the outer periphery of the inner filter cartridge, the middle filter cartridge, and the outer filter cartridge.

7. The multi-layer centrifugal filter cartridge structure of the sand polishing liquid filter as described in claim 1, characterized in that: The bottom surface of the turntable is fitted with multiple blades arranged radially.

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