Slurry de-ironer

Abstract

The application discloses a kind of slurry iron remover, including tank body, the top opening of the tank body is equipped with cover body, the bottom of the cover body is fixedly installed with several vertical extension electromagnetic rod, the inside of the tank body is horizontally provided with isolation plate, the tank body is equipped with isolation plate, the outer edge of the isolation plate is sealingly fixedly connected with tank body inner wall, the isolation plate is divided into upper chamber and lower chamber in tank body, the lower chamber is connected with feed pipe, the upper chamber is connected with discharge pipe, several openings are on the isolation plate, the electromagnetic rod is arranged in the opening, and annular overflow passage is formed between the electromagnetic rod and the opening.The application is divided into upper and lower independent feed chamber and discharge chamber by isolation plate, so that the slurry to be treated can only flow out through the annular overflow passage on the isolation plate, and all slurry sprouts pass through the magnetic field action area along the axial surface of the electromagnetic rod, to ensure that all slurry can be in full contact with effective magnetic field.

Description

Technical Field

[0001] This invention relates to the technical field of slurry iron removal, and in particular to slurry iron separators. Background Technology

[0002] In the wet coating process of thin films, ceramic slurries and polymer functional slurries inevitably become contaminated with impurities such as stainless steel microparticles and ferromagnetic iron oxide debris generated by pipeline wear during transportation and stirring. These micron-sized impurities can directly cause defects such as pinholes, bright spots, and localized breakdowns in the coating, seriously affecting the insulation performance, optical uniformity, and service life of the film. Therefore, online iron removal and purification of slurries is a key process to ensure the yield of high-end thin film coating and product performance.

[0003] The existing slurry iron separator structure, as shown in CN223788678U, generally adopts a box-type shell combined with a vertically inserted magnetic rod group structure. When the slurry flows horizontally through the gaps between the magnetic rods, it is easy to form a central short-circuit flow, and the slurry flows out before fully entering the effective magnetic field area, resulting in low capture efficiency. Patent CN219051654U discloses an automatically cleanable pipeline slurry iron separator. This patent uses a drive mechanism to drive the magnetic rods to pull out of the sleeve, and the impurities fall off automatically and are discharged without manual cleaning. However, this solution requires opening the equipment cavity to discharge impurities during slag removal, which compromises the airtightness of the slurry conveying system. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the prior art by proposing a slurry iron separator that can solve the above problems.

[0005] To achieve the above objectives, the present invention proposes a slurry iron separator, comprising a tank body, a cover installed at the top opening of the tank body, and several vertically extending electromagnetic rods fixedly installed at the bottom of the cover body. A horizontally arranged partition plate is provided inside the tank body, and the outer edge of the partition plate is sealed and fixedly connected to the inner wall of the tank body. The partition plate divides the interior of the tank body into an upper chamber and a lower chamber. The lower chamber is connected to a feed pipe, and the upper chamber is connected to a discharge pipe. Several openings are provided on the partition plate, each corresponding to an electromagnetic rod, with the corresponding electromagnetic rod passing through the opening, forming an annular flow channel between the electromagnetic rod and the opening.

[0006] Preferably, a filter screen is provided below the isolation plate, forming an auxiliary cavity between the filter screen and the bottom of the tank. The filter screen is fixedly installed on the inner wall of the tank and is located below the feed pipe. A movable base plate is provided below the filter screen, and the outer edge of the movable base plate is sealed and movably connected to the inner wall of the tank. The auxiliary cavity is connected to a discharge pipe, and the movable base plate is connected to a movable cylinder. Several sleeves are provided on the movable base plate, each corresponding to an electromagnetic rod. The sleeves are movably fitted onto the outside of the electromagnetic rods, and a movable top plate is connected to the top of each sleeve. A clearance hole is provided on the movable top plate for the electromagnetic rod to pass through, and the inner wall of the clearance hole slides and seals against the outer wall of the electromagnetic rod.

[0007] Preferably, the bottom of the movable top plate is provided with several annular seals, each annular seal corresponding to an annular flow channel. When the movable top plate abuts against the upper surface of the isolation plate, the annular seals block the upper opening of the flow channel.

[0008] Preferably, the filter plate is provided with a plurality of sliding sleeves, and the outer wall of the sleeve is slidably installed with the sliding sleeve.

[0009] Preferably, the feed pipe and the discharge pipe are located on opposite sides of the tank, and the feed pipe and the discharge pipe are located on opposite sides of the tank.

[0010] Preferably, both the movable base plate and the movable top plate are provided with annular grooves, and a sealing ring is provided in the annular grooves.

[0011] Preferably, when the equipment is running normally, the electromagnetic rod is energized, and the upper surface of the movable base plate is in close contact with the lower surface of the filter screen plate to form an end face seal, completely isolating the lower chamber from the auxiliary chamber below. The auxiliary chamber is in an empty and liquid-free state. When the equipment is being cleaned, the electromagnetic rod is de-energized, and the movable cylinder drives the movable base plate downward. The movable base plate moves downward and separates from the filter screen plate, moving to the bottom of the auxiliary chamber. The slurry enters the auxiliary chamber after being filtered by the filter screen plate.

[0012] The beneficial effects of this invention are: This invention uses a partition plate to divide the inside of the tank into an independent upper and lower feeding chamber and a discharging chamber, so that the slurry to be treated can only flow out through the annular flow channel on the partition plate. All the slurry sprouts pass through the magnetic field area along the axial surface of the electromagnetic rod, ensuring that all the slurry can fully contact the effective magnetic field, which significantly improves the adsorption and capture efficiency of ferromagnetic impurities and enhances the removal ability of micron-sized weak magnetic stainless steel particles and iron oxide debris, which can meet the high-precision iron removal requirements of high-end functional film coating slurries. This invention utilizes the cooperation of a movable base plate and a filter screen to filter residual slurry, which is then collected and channeled into an auxiliary chamber for centralized recovery. This significantly reduces the loss of high-value coating slurry and lowers production and operating costs. After slurry recovery, cleaning medium can be directly introduced from the auxiliary chamber side to flush the filter screen and sleeve surface from bottom to top, achieving online self-cleaning of the filter screen. This eliminates the need to disassemble components or open the cover for manual cleaning, simplifying maintenance procedures and shortening equipment downtime. The entire recovery and cleaning process is completed within a closed chamber, without the need to open the equipment or disconnect pipelines, thus preventing external dust and air from invading and contaminating the slurry, and inducing coating defects. During the cleaning operation, the movable top plate moves down synchronously with the sleeve and presses against the end face of the isolation plate, completely cutting off the communication channel between the upper and lower chambers and completely isolating the upper chamber connected to the discharge pipe. This effectively prevents cleaning waste liquid containing impurities from entering the discharge pipe and ensures the stable quality of the downstream coating slurry.

[0013] The features and advantages of the present invention will be described in detail through embodiments and in conjunction with the accompanying drawings. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the cleaning process of the present invention; Figure 3 This is a schematic diagram of the isolation plate of the present invention; Figure 4 This is a schematic diagram of the flow channel of the present invention.

[0015] In the diagram: 1. Tank body; 2. Cover; 3. Electromagnetic rod; 4. Isolation plate; 5. Feed pipe; 6. Discharge pipe; 7. Filter screen; 8. Movable bottom plate; 9. Sleeve; 10. Movable top plate; 11. Upper chamber; 12. Lower chamber; 13. Auxiliary chamber; 14. Discharge pipe; 20. Clearance hole; 21. Annular seal; 41. Opening; 42. Flow channel; 71. Sliding sleeve; 81. Movable cylinder. Detailed Implementation

[0016] See Figure 1 , Figure 2 , Figure 3 and Figure 4A slurry iron separator includes a tank body 1. A cover 2 is installed at the top opening of the tank body 1. Several vertically extending electromagnetic rods 3 are fixedly installed at the bottom of the cover 2. A partition plate 4 is horizontally arranged inside the tank body 1. The outer edge of the partition plate 4 is sealed and fixedly connected to the inner wall of the tank body 1. The partition plate 4 divides the interior of the tank body 1 into an upper chamber 11 and a lower chamber 12. The lower chamber 12 is connected to a feed pipe 5, and the upper chamber 11 is connected to a discharge pipe 6. Several openings 41 are on the partition plate 4. Each opening 41 corresponds to one electromagnetic rod 3. The corresponding electromagnetic rod 3 passes through the opening 41, and an annular flow channel 42 is formed between the electromagnetic rod 3 and the opening 41.

[0017] A filter screen 7 is provided below the isolation plate 4. An auxiliary cavity 13 is formed between the filter screen 7 and the bottom of the tank 1. The filter screen 7 is fixedly installed on the inner wall of the tank 1. The filter screen 7 is located below the feed pipe 5. A movable base plate 8 is provided below the filter screen 7. The outer edge of the movable base plate 8 is sealed and movably connected to the inner wall of the tank 1. The auxiliary cavity 13 is connected to a discharge pipe 14. A movable cylinder 81 is connected to the movable base plate 8. Several sleeves 9 are provided on the movable base plate 8. Each sleeve 9 corresponds to an electromagnetic rod 3. The sleeve 9 is movably fitted on the outside of the electromagnetic rod 3. A movable top plate 10 is connected to the top of the sleeve 9. A clearance hole 20 is opened on the movable top plate 10 for the electromagnetic rod 3 to pass through. The inner wall of the clearance hole 20 slides and seals against the outer wall of the electromagnetic rod 3.

[0018] The sleeve is made of non-magnetic, non-conductive material and does not possess the properties of magnetic conduction or adsorption of iron filings. The magnetic field generated by the electromagnetic rod can penetrate the outer wall of the sleeve and act on the slurry flowing through the outer periphery of the sleeve. Ferromagnetic impurities are only adsorbed on the outer surface of the sleeve; after cleaning and demagnetization, the impurities can be completely removed and will not be adsorbed and remain by the sleeve's own magnetic force.

[0019] The bottom of the movable top plate 10 is provided with a plurality of annular sealing elements 21, and the annular sealing elements 21 correspond one-to-one with the annular flow channels 42. When the movable top plate 10 abuts against the upper surface of the isolation plate 4, the annular sealing elements 21 block the upper opening of the flow channels 42.

[0020] The filter screen plate 7 is provided with a plurality of sliding sleeves 71, and the outer wall of the sleeve 9 is slidably installed with the sliding sleeves 71.

[0021] The feed pipe 5 and the discharge pipe 6 are respectively located on both sides of the tank body 1, and the feed pipe 5 and the discharge pipe 14 are respectively located on both sides of the tank body 1.

[0022] Both the movable base plate 8 and the movable top plate 10 are provided with annular grooves, and sealing rings are provided in the annular grooves.

[0023] When the equipment is running normally, the electromagnetic rod 3 is energized, and the upper surface of the movable base plate 8 is in close contact with the lower surface of the filter screen plate 7, forming an end face seal, completely isolating the lower chamber 12 from the auxiliary chamber 13 below. The auxiliary chamber 13 is in an empty and liquid-free state. When the equipment is being cleaned, the electromagnetic rod 3 is de-energized, and the movable cylinder 81 drives the movable base plate 8 to move downward. The movable base plate 8 moves downward and separates from the filter screen plate 7, moving to the bottom of the auxiliary chamber 13. The slurry enters the auxiliary chamber 13 after being filtered by the filter screen plate 7.

[0024] The working process of this invention: During normal operation, the upper surface of the movable base plate is in close contact with the lower surface of the filter screen, forming an end-face seal that completely isolates the lower chamber from the auxiliary chamber below, keeping the auxiliary chamber empty and without liquid. When the electromagnetic rod is energized, the magnetic field acts on the external slurry through the sleeve wall. The slurry to be treated enters the lower chamber through the feed pipe and flows from bottom to top under the conveying pressure. It passes through the annular flow channel between the outer wall of the sleeve and the opening of the isolation plate and passes through the isolation plate. When the slurry flows through the magnetic field area on the surface of the sleeve, the ferromagnetic impurities in it are attracted to the outer wall of the sleeve by the magnetic force, and the impurity adsorption is completed. The purified slurry is discharged through the discharge pipe and enters the downstream process. During regular cleaning, feeding is stopped, the electromagnetic rod is de-energized, and the movable cylinder drives the movable base plate downward. The sleeve and the movable top plate slide downward synchronously along the axis of the electromagnetic rod. During the downward movement of the movable top plate, the residual slurry and fallen impurities in the upper chamber are forced into the lower chamber through the flow channel. The movable base plate moves downward and separates from the filter screen. The slurry in the lower chamber passes through the filter screen from top to bottom. Ferromagnetic impurities and large particulate pollutants in the slurry are intercepted by the filter screen. The filtered clean slurry enters the auxiliary chamber at the bottom and is finally discharged and recycled through the discharge pipe.

[0025] After the clean slurry is recovered, the discharge pipe is connected to the backwash pipe, and the cleaning liquid is introduced into the auxiliary chamber through the discharge pipe. The cleaning liquid washes the filter screen from bottom to top, loosening and removing the impurities embedded and intercepted on the filter screen. At the same time, the feed pipe is switched to the sewage discharge pipe, and the sewage carrying impurities is discharged from the feed pipe, completing the cleaning and slag removal of the entire equipment.

[0026] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the scope of protection of the present invention.

Claims

1. A slurry iron separator, characterized in that: The container includes a tank (1), a cover (2) is installed at the top opening of the tank (1), and several vertically extending electromagnetic rods (3) are fixedly installed at the bottom of the cover (2). A partition plate (4) is horizontally arranged inside the tank (1). The outer edge of the partition plate (4) is sealed and fixedly connected to the inner wall of the tank (1). The partition plate (4) divides the inside of the tank (1) into an upper chamber (11) and a lower chamber (12). The lower chamber (12) is connected to a feed pipe (5), and the upper chamber (11) is connected to a discharge pipe (6). Several openings (41) are on the partition plate (4). The openings (41) correspond one-to-one with the electromagnetic rods (3). The electromagnetic rods (3) are inserted into the openings (41), and an annular flow channel (42) is formed between the electromagnetic rods (3) and the openings (41).

2. The slurry iron separator as described in claim 1, characterized in that: A filter screen (7) is provided below the isolation plate (4). An auxiliary cavity (13) is formed between the filter screen (7) and the bottom of the tank (1). The filter screen (7) is fixedly installed on the inner wall of the tank (1). The filter screen (7) is located below the feed pipe (5). A movable bottom plate (8) is provided below the filter screen (7). The outer edge of the movable bottom plate (8) is sealed and movably connected to the inner wall of the tank (1). A discharge pipe (14) is connected to the auxiliary cavity (13). The movable base plate (8) is connected to a movable cylinder (81). The movable base plate (8) is provided with several sleeves (9). Each sleeve (9) corresponds to an electromagnetic rod (3). The sleeve (9) is movably fitted on the outside of the electromagnetic rod (3). The top of the sleeve (9) is connected to a movable top plate (10). The movable top plate (10) is provided with a clearance hole (20) for the electromagnetic rod (3) to pass through. The inner wall of the clearance hole (20) slides and seals against the outer wall of the electromagnetic rod (3).

3. The slurry iron separator as described in claim 2, characterized in that: The bottom of the movable top plate (10) is provided with several annular seals (21), and the annular seals (21) correspond one-to-one with the annular flow channels (42). When the movable top plate (10) abuts against the upper surface of the isolation plate (4), the annular seals (21) block the upper opening of the flow channels (42).

4. The slurry iron separator as described in claim 2, characterized in that: The filter screen plate (7) is provided with several sliding sleeves (71), and the outer wall of the sleeve (9) is slidably installed with the sliding sleeves (71).

5. The slurry iron separator as described in claim 1, characterized in that: The feed pipe (5) and the discharge pipe (6) are respectively located on both sides of the tank body (1), and the feed pipe (5) and the discharge pipe (14) are respectively located on both sides of the tank body (1).

6. The slurry iron separator as described in claim 2, characterized in that: Both the movable base plate (8) and the movable top plate (10) are provided with annular grooves, and a sealing ring is provided in the annular grooves.

7. The slurry iron separator as described in claim 1, characterized in that: When the equipment is running normally, the electromagnetic rod (3) is energized, and the upper surface of the movable base plate (8) is in close contact with the lower surface of the filter screen plate (7) to form an end face seal, completely isolating the lower chamber (12) from the auxiliary chamber (13) below. The auxiliary chamber (13) is in an empty and liquid-free state. When the equipment is being cleaned, the electromagnetic rod (3) is de-energized, and the movable cylinder (81) drives the movable base plate (8) to move downward. The movable base plate (8) moves downward and separates from the filter screen plate (7) and moves to the bottom of the auxiliary chamber (13). The slurry enters the auxiliary chamber (13) after being filtered by the filter screen plate (7).

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