Wet mixing demagnetizing device for lithium iron phosphate production

Abstract

The utility model relates to a wet mixing demagnetizing device for lithium iron phosphate production, and belongs to the technical field of lithium iron phosphate production. The demagnetizing device mainly comprises a feeding pipe, a discharging pipe, a demagnetizing box, a guide block, a guide rod, a supporting plate, a rotating shaft, a rotating disc, a magnetic bar and a micro motor. Iron impurities in slurry are adsorbed through the magnetic bars, meanwhile, the micro motor drives the rotary disc to rotate, the magnetic bars are continuously stirred in the slurry, the contact area of the magnetic bars and the slurry is increased, the demagnetizing effect is improved, the magnetic bars can be taken out from the round holes in the top end of the demagnetizing box, the magnetic bars can be conveniently cleaned and replaced, and the demagnetizing efficiency is improved. The problem that the demagnetizing effect is reduced due to the fact that the magnetic bar adsorbs too many magnetic objects is solved, and the device is simple in structure, convenient to use, low in cost and suitable for large-scale production, and saves time and labor in installation and disassembly.

Description

TECHNICAL FIELD

[0001] The utility model belongs to lithium iron phosphate production technical field, concretely relates to a lithium iron phosphate production wet method mixing material magnetic removal device. BACKGROUND

[0002] Lithium iron phosphate electrode material is mainly used for various lithium ion batteries, and is usually in the form of powder, when the lithium iron phosphate is used to make the negative electrode of lithium battery, the magnetism of the lithium iron phosphate should be reduced as far as possible, if the magnetism is strong when the lithium battery is made, the lithium battery self-discharge condition is prone to occurring, and the service life of the lithium battery is affected.

[0003] The existing magnetic removal equipment usually installs magnetic rods in the tank for mixing slurry, and the magnetic rods are used to adsorb the iron impurities in the slurry, but because a large number of magnetic rods are needed in the tank, the use cost is high, and when the magnetic rods are attached with a large number of magnetic substances, if the magnetic rods are not cleaned in time, the adsorption effect of the magnetic rods on the magnetic substances will be reduced, so the magnetic rods in the tank need to be disassembled on a large scale, which is time-consuming and laborious. UTILITY MODEL CONTENTS

[0004] In order to overcome the problems of the existing magnetic removal equipment, a large number of magnetic rods are needed, the use cost is high, and when the magnetic rods are attached with a large number of magnetic substances, if the magnetic rods are not cleaned in time, the adsorption effect of the magnetic rods on the magnetic substances will be reduced, so the magnetic rods in the tank need to be disassembled on a large scale, which is time-consuming and laborious, the utility model provides a lithium iron phosphate production wet method mixing material magnetic removal device; the utility model uses the magnetic rods to adsorb the iron impurities in the slurry, and at the same time, the micro motor drives the rotating disc to rotate, so that the magnetic rods are continuously stirred in the slurry, the contact area between the magnetic rods and the slurry is increased, the magnetic removal effect is improved, the magnetic rods can be taken out from the round hole at the top end of the magnetic removal tank, the magnetic rods are convenient to clean and replace, and the problem that the magnetic removal effect is reduced due to the excessive adsorption of the magnetic rods on the magnetic substances is avoided.

[0005] In order to achieve the above object, the utility model is through the following technical scheme realizes: a lithium iron phosphate production wet method mixing magnetic device mainly includes feed pipe, discharge pipe, magnetic box, guide block, guide rod, support plate, pivot, carousel, magnetic bar, micro motor, the feed pipe, discharge pipe install at both ends of magnetic box, the inside of magnetic box is provided with cavity structure, the feed pipe, discharge pipe, magnetic box are intercommunicated, the guide block is installed on the side wall of magnetic box, the guide block has a chute on beginning, the guide rod is slidably installed in the inside of chute, the support plate is installed on the top end of guide rod, the pivot is rotatably installed on the support plate through the support plate, the carousel is installed at the bottom end of pivot, the magnetic bar is installed on the carousel, the micro motor is installed on the support plate, the pivot is drivenly connected with micro motor, the top end of magnetic box is provided with the round hole convenient for the magnetic bar to enter, take out the inside of magnetic box, the carousel is installed at the round hole, the support plate is provided with strip slot, the side wall of magnetic box is provided with screw rod, the support plate is fixedly installed on the top end of magnetic box through screw rod and nut.

[0006] The feed pipe and the discharge pipe are respectively welded with a feed flange plate and a discharge flange plate at the ends.

[0007] The bottom end of the carousel is provided with a threaded sleeve, and the magnetic bar is detachably installed on the threaded sleeve.

[0008] The magnetic bar is provided with eight roots and is installed on the threaded sleeve at equal intervals.

[0009] The distance between the magnetic bar and the inner wall of the round hole is 3mm-10mm.

[0010] The connection part of the carousel and the round hole is provided with a sealing ring.

[0011] The support plate is provided with a handle.

[0012] The utility model has the advantages of:

[0013] The utility model utilizes the magnetic bar to adsorb the iron impurities in the slurry, and drives the carousel to rotate through the micro motor, so that the magnetic bar continuously stirs in the slurry, increases the contact area of the magnetic bar and the slurry, improves the magnetic removal effect, the magnetic bar can be taken out from the round hole at the top end of the magnetic box, which facilitates the cleaning and replacement of the magnetic bar, avoids the problem that the magnetic removal effect is reduced due to too much adsorption of the magnetic bar, the device has the advantages of simple structure, time and labor saving in installation and dismounting, convenient use, low cost and suitability for large-scale production. DRAWINGS

[0014] Figure 1 It is the isometric schematic view of the utility model.

[0015] Figure 2 It is the three-dimensional schematic view of the utility model.

[0016] Figure 3Is another three-dimensional view of the utility model.

[0017] Figure 4 Is the front view of the utility model. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and beneficial effect of the utility model more clear, the preferred embodiment of the utility model will be described in detail below with reference to the drawings, so as to facilitate the understanding of the technical personnel.

[0019] The utility model discloses a lithium iron phosphate production wet mixing and magnetic removal device, one kind of lithium iron phosphate production wet mixing and magnetic removal device mainly includes feed pipe 1, discharge pipe 2, magnetic removal tank 3, guide block 4, guide rod 5, support plate 6, pivot 7, carousel 8, magnetic bar 9, micro motor 10, the feed pipe 1 of being installed in magnetic removal tank 3 both ends, magnetic removal tank 3 inside is provided with cavity structure, feed pipe 1, discharge pipe 2, magnetic removal tank 3 are interconnected, guide block 4 is installed on the side wall of magnetic removal tank 3, and there is a chute 41 on guide block 4, and guide rod 5 is slidably installed in the inside of chute 41, and support plate 6 is installed at the top end of guide rod 5, and pivot 7 is rotatably installed on support plate 6 by penetrating support plate 6, and carousel 8 is installed at the bottom end of pivot 7, and magnetic bar 9 is installed on carousel 8, and micro motor 10 is installed on support plate 6, and pivot 7 is drivenly connected with micro motor 10, and the top end of magnetic removal tank 3 is provided with round hole 31 for the magnetic bar 9 to enter and take out the inside of magnetic removal tank 3, and carousel 8 is installed at round hole 31, and strip slot 61 is formed in support plate 6, and screw 32 is arranged on the side wall of magnetic removal tank 3, and support plate 6 is fixedly installed on the top end of magnetic removal tank 3 through screw 32 and nut.

[0020] The mixed slurry of lithium iron phosphate flows into the demagnetizing box 3 through the feeding pipe 1. The micro motor 10 is started. Since the rotating shaft 7 is in driving connection with the micro motor 10, the micro motor 10 drives the rotating shaft 7 to rotate, the rotating shaft 7 drives the rotating disc 8 installed at the bottom end of the rotating shaft 7 to rotate, and further drives the magnetic rod 9 to rotate. At this time, the slurry flows in the demagnetizing box 3, and the magnetic rod 9 plays a role of demagnetization to adsorb the iron impurities in the slurry. When the magnetic rod 9 adsorbs more magnetic substances, it needs to be cleaned. First, the micro motor 10 is turned off to stop the rotation of the rotating disc 8. Then, the operator rotates the nut to remove the screw rod 32 from the strip-shaped through slot 61, holds the handle 62 to drive the supporting plate 6 to move upward, and drives the guide rod 5 to move upward along the sliding groove 41 in the guide block 4, so that the supporting plate 6 is moved. With the upward movement of the supporting plate 6, the rotating disc 8 drives the magnetic rod 9 to move out of the inside of the demagnetizing box 3 from the circular hole 31. The magnetic rod 9 is detachably installed in the threaded sleeve 12, so that the magnetic rod 9 can be conveniently removed from the threaded sleeve 12 for cleaning or replacement and other maintenance operations. After cleaning, the magnetic rod 9 is reinstalled in the threaded sleeve 12 on the rotating disc 8, and the supporting plate 6 is fixedly installed at the top end of the demagnetizing box 3 through the screw rod 32 and the nut. The slurry after demagnetization flows out of the demagnetizing box 3 through the discharge pipe 2. The discharge flange 21 at the end of the discharge pipe 2 can be connected with subsequent equipment or pipeline, so that the slurry after demagnetization enters the next production process.

[0021] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , the feeding pipe 1 and the discharge pipe 2 are respectively welded with the feeding flange 11 and the discharge flange 21 at the ends. The feeding flange 11 can be connected with other equipment to ensure the smooth entry of the slurry. The discharge flange 21 can be connected with other equipment to ensure the smooth discharge of the slurry.

[0022] As shown in Figure 4 , the rotating disc 8 is installed with the threaded sleeve 12 at the bottom end, and the magnetic rod 9 is detachably installed in the threaded sleeve 12. The magnetic rod 9 can be conveniently removed from the threaded sleeve 12 for cleaning or replacement and other maintenance operations.

[0023] As shown in Figure 2 , Figure 3 , Figure 4 , the magnetic rod 9 is provided with eight roots and is installed on the threaded sleeve 12 at equal intervals. The efficiency and uniformity of demagnetization are improved.

[0024] As shown in Figure 1 , Figure 2 , Figure 3 , the distance between the magnetic rod 9 and the inner wall of the circular hole 31 is 3mm-10mm. The magnetic rod 9 can rotate in a reasonable space and effectively adsorb magnetic substances.

[0025] As Figure 1 shown, the rotary disc 8 is provided with a sealing ring 13 at the joint with the circular hole 31; to prevent slurry leakage.

[0026] As Figure 1 , Figure 2 , Figure 3 , Figure 4 shown, the support plate 6 is provided with a handle 62; to facilitate the operation of the staff.

[0027] Working process:

[0028] The mixed slurry of lithium iron phosphate flows into the magnetic removal tank 3 through the feeding pipe 1, and the end of the feeding pipe 1 is welded with a feeding flange 11, which can be conveniently connected with other equipment to convey the slurry. Since the feeding pipe 1, the discharging pipe 2 and the magnetic removal tank 3 are in communication with each other, the slurry can smoothly flow from the feeding pipe 1 into the cavity inside the magnetic removal tank 3. The micro motor 10 is started, and since the rotating shaft 7 is in transmission connection with the micro motor 10, the micro motor 10 drives the rotating shaft 7 to rotate, which in turn drives the rotary disc 8 installed at the bottom end of the rotating shaft 7 to rotate, and further drives the magnetic rod 9 to rotate. At this time, the slurry flows in the magnetic removal tank 3, and the magnetic rod 9 plays a role of removing magnetism to adsorb the iron impurities in the slurry. The distance between the magnetic rod 9 and the inner wall of the circular hole 31 is kept at 3mm-10mm, which ensures that the magnetic rod 9 can rotate in a reasonable space and effectively adsorb magnetic substances. At the same time, the rotary disc 8 is provided with a sealing ring 13 at the joint with the circular hole 31 to prevent the slurry from leaking out of the circular hole 31 during the magnetic removal process. When the magnetic rod 9 adsorbs more magnetic substances, it needs to be cleaned. First, the micro motor 10 is turned off to stop the rotation of the rotary disc 8. Then, the operator unscrews the nut, removes the screw rod 32 from the strip-shaped through slot 61, holds the handle 62, and drives the support plate 6 to move upwards. The guide rod 5 moves upwards along the sliding groove 41 in the guide block 4, thereby realizing the movement of the support plate 6. With the upward movement of the support plate 6, the rotary disc 8 drives the magnetic rod 9 to move out of the inside of the magnetic removal tank 3 from the circular hole 31. The magnetic rod 9 is detachably installed in the threaded sleeve 12, which can be conveniently detached from the threaded sleeve 12 for cleaning or replacement and other maintenance operations. After cleaning, the magnetic rod 9 is reinstalled into the threaded sleeve 12 on the rotary disc 8, and the support plate 6 is fixedly installed at the top end of the magnetic removal tank 3 through the screw rod 32 and the nut. The slurry after magnetic removal flows out of the magnetic removal tank 3 through the discharging pipe 2. The discharging flange 21 at the end of the discharging pipe 2 can be connected with subsequent equipment or pipeline, so that the slurry after magnetic removal enters the next production process.

[0029] Finally, it is explained that the above preferred embodiments are only used to illustrate the technical solutions of the present application and are not limited, although the present application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present application.

Claims

1. A wet mixing and demagnetizing device for lithium iron phosphate production, characterized in that: The aforementioned wet mixing and demagnetizing device for lithium iron phosphate production includes a feed pipe (1), a discharge pipe (2), a demagnetizing box (3), a guide block (4), a guide rod (5), a support plate (6), a rotating shaft (7), a turntable (8), a magnetic rod (9), and a micro motor (10). The feed pipe (1) and the discharge pipe (2) are installed at both ends of the demagnetizing box (3). The interior of the demagnetizing box (3) is set as a cavity structure. The feed pipe (1), the discharge pipe (2), and the demagnetizing box (3) are interconnected. The guide block (4) is installed on the side wall of the demagnetizing box (3). The guide block (4) has a groove (41) at the beginning. The guide rod (5) is slidably installed inside the groove (41). The support plate (6) is installed on the guide block. At the top of the rod (5), the rotating shaft (7) passes through the support plate (6) and is rotatably mounted on the support plate (6). The turntable (8) is mounted at the bottom of the rotating shaft (7). The magnetic rod (9) is mounted on the turntable (8). The micro motor (10) is mounted on the support plate (6). The rotating shaft (7) is connected to the micro motor (10) for transmission. The top of the demagnetizing box (3) is provided with a round hole (31) to facilitate the entry and exit of the magnetic rod (9) into the demagnetizing box (3). The turntable (8) is mounted at the round hole (31). The support plate (6) is provided with a strip-shaped through groove (61). The side wall of the demagnetizing box (3) is provided with a screw (32). The support plate (6) is fixedly mounted on the top of the demagnetizing box (3) by the screw (32) and the nut.

2. The wet mixing and demagnetizing device for lithium iron phosphate production as described in claim 1, characterized in that: The feed pipe (1) and the discharge pipe (2) are respectively welded with a feed flange (11) and a discharge flange (21).

3. A wet mixing and demagnetizing device for lithium iron phosphate production as described in claim 1 or 2, characterized in that: The turntable (8) is fitted with a threaded sleeve (12) at its bottom end, and the magnetic rod (9) is detachably mounted on the threaded sleeve (12).

4. The wet mixing and demagnetizing device for lithium iron phosphate production as described in claim 3, characterized in that: The magnetic rods (9) are provided in eight pieces, which are installed at equal intervals on the threaded sleeve (12).

5. The wet mixing and demagnetizing device for lithium iron phosphate production as described in claim 1, characterized in that: The distance between the magnetic rod (9) and the inner wall of the circular hole (31) is 3mm to 10mm.

6. The wet mixing and demagnetizing device for lithium iron phosphate production as described in claim 1, characterized in that: A sealing ring (13) is installed at the connection between the turntable (8) and the round hole (31).

7. A wet mixing and demagnetizing device for lithium iron phosphate production as described in claim 1 or 2, characterized in that: The support plate (6) is provided with a handle (62).

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