Graphite cathode material demagnetizer

Abstract

The utility model discloses a graphite cathode material demagnetizer, which belongs to the technical field of demagnetizers and comprises a demagnetizer shell, a supporting mechanism is assembled on the lower portion of the outer side wall of the demagnetizer shell, and a programmable controller is fixedly connected to the upper portion of the outer side wall of the demagnetizer shell. A feeding pipe communicated with the interior of the demagnetizer shell is fixedly connected to the top end of the outer portion of the demagnetizer shell, an annular first mounting groove is formed in the inner wall of the demagnetizer shell, an electromagnet is fixedly connected to the interior of the first mounting groove, and a discharging pipe communicated with the interior of the demagnetizer shell is fixedly connected to the bottom end of the outer portion of the demagnetizer shell. A spiral feeding mechanism for vertically and upwards feeding is assembled between the demagnetizer shell and the interior of the discharging pipe, and a material guide plate is connected to the outside of the spiral feeding mechanism; according to the graphite demagnetizer, the spiral feeding mechanism and the material guide plate are arranged, so that graphite can be vertically and upwards fed and then is in full contact with the electromagnet after sliding down through the material guide plate, and the function of improving the removal efficiency and effect of the demagnetizer on magnetic substances in the graphite is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of demagnetizers, and specifically relates to a demagnetizer for graphite negative electrode materials. Background Technology

[0002] Graphite is an allotrope of carbon, a gray-black, opaque solid with stable chemical properties, corrosion resistance, and low reactivity with acids and alkalis. It is usually made into negative electrode materials for lithium batteries. Before graphite is made into negative electrode materials for lithium batteries, it needs to be pretreated. Removing magnetic substances from graphite is a process in the pretreatment.

[0003] Chinese Patent No. 202320803964.4 discloses a graphite negative electrode material demagnetizer, which is composed of a bracket, a processing frame rotatably connected to the bracket, a valve installed at the bottom of the processing frame, an electromagnet installed in the processing frame, a scraping mechanism installed in the processing frame that can scrape off the magnetic material on the electromagnet, a detachable upper cover installed at the top of the processing frame, and a separation frame installed at the bottom of the upper cover and extending into the processing frame. When the demagnetizer is used, the upper cover is opened, the graphite is placed in the processing frame, the upper cover is closed, the processing frame rotates, and the electromagnet is energized at the same time. The rotating processing frame drives the internal graphite to move and continuously contact the electromagnet, and the electromagnet absorbs the magnetic material in the graphite. The separation frame breaks up the moving graphite, so that the graphite is more fully in contact with the electromagnet, thereby improving the adsorption effect of the magnetic material. After the demagnetization is completed, the valve is opened to collect the graphite. After the collection is completed, the electromagnet is powered off, the magnetic material falls off, and the magnetic material is collected.

[0004] The inventor of this application found that: the graphite negative electrode material demagnetizer drives the graphite to rotate and contact the electromagnet by rotating the processing frame, and then breaks up the separation frame to improve the comprehensiveness of the contact to achieve the adsorption of magnetic substances in the graphite. This method cannot ensure that the graphite is fully in contact with the electromagnet, which reduces the removal effect of the magnetic substances in the graphite. Contents of utility model

[0005] To solve the problems raised in the above background technology. The utility model provides a graphite negative electrode material demagnetizer, which has the characteristics of improving the efficiency and effect of the demagnetizer in removing magnetic substances in graphite.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A demagnetizer for graphite negative electrode materials, comprising: a demagnetizer housing, a support mechanism is assembled on the lower part of the outer side wall of the demagnetizer housing, a programmable controller is fixedly connected to the upper part of the outer side wall of the demagnetizer housing, a feed pipe communicating with the inside of the demagnetizer housing is fixedly connected to the top end of the outside of the demagnetizer housing, a circular first installation groove is formed on the inner wall of the demagnetizer housing, an electromagnet is fixedly connected inside the first installation groove, a discharge pipe communicating with the inside of the demagnetizer housing is fixedly connected to the bottom end of the outside of the demagnetizer housing, a spiral feeding mechanism for vertically upward feeding is assembled between the demagnetizer housing and the inside of the discharge pipe, a guide plate is connected to the outside of the spiral feeding mechanism, an electric discharge valve is fixedly connected inside the discharge pipe below the spiral feeding mechanism, and the electromagnet, the spiral feeding mechanism and the electric discharge valve are electrically connected to the programmable controller.

[0007] Further, the support mechanism includes a bottom support plate arranged on the ground and a support ring fixedly connected to the outer side wall of the demagnetizer housing, and a plurality of support rods are fixedly connected at equal intervals in the circumferential direction between the top end of the bottom support plate and the bottom end of the support ring.

[0008] Further, the spiral feeding mechanism includes a first motor fixedly connected to the top end of the demagnetizer housing, a second installation groove formed at the top end of the discharge pipe, and a support plate fixedly connected inside the discharge pipe between the second installation groove and the electric discharge valve. The output shaft of the first motor penetrates the demagnetizer housing and extends into the demagnetizer housing and is connected to a spiral feeder through a coupling. The bottom end of the spiral feeder is connected to the support plate through a bearing. A feeding cylinder located outside the spiral feeder is connected between the top wall of the demagnetizer housing and the bottom wall of the second installation groove. The feeding cylinder is communicated with the discharge pipe. A plurality of feeding ports communicating the demagnetizer housing with the feeding cylinder are formed at the lower part of the feeding cylinder. A plurality of discharge ports communicating the demagnetizer housing with the feeding cylinder are formed above the guide plate at the upper part of the feeding cylinder. The first motor is electrically connected to the programmable controller.

[0009] Further, the bottom end of the demagnetizer housing is arranged in an inclined structure, and the inclined bottom end is flush with the bottom ends of a plurality of feeding ports.

[0010] Further, a rotation driving mechanism is assembled between the feeding cylinder and the demagnetizer housing. The outer wall of the feeding cylinder is arranged in a threaded structure. The guide plate is connected to the feeding cylinder through a transmission nut. The rotation driving mechanism is electrically connected to the programmable controller.

[0011] Further, the rotation driving mechanism includes a second motor fixedly connected to the top end of the demagnetizer housing and a tooth ring fixedly connected to the feeding cylinder above a plurality of discharge ports. The output shaft of the second motor penetrates the demagnetizer housing and extends into the demagnetizer housing and is fixedly sleeved with a gear meshed with the tooth ring. The second motor is electrically connected to the programmable controller.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] 1. The utility model is provided with a spiral feeding mechanism and a material guiding plate, which can vertically feed graphite upward, and then fully contact the electromagnet after sliding down through the material guiding plate, so as to improve the removal efficiency and effect of magnetic substances in graphite by the demagnetizer.

[0014] 2. The utility model sets the position between the feeding cylinder of the spiral feeding mechanism and the material guiding plate as an adjustable structure, which can adjust the position of the material guiding plate according to the actual adsorption situation of the electromagnet, so as to avoid the problem that the adsorption force decreases due to excessive adsorption of magnetic substances at a certain position of the electromagnet, affecting the adsorption effect of magnetic substances in graphite. Description of the Drawings

[0015] Figure 1 is a three-dimensional view of the utility model;

[0016] Figure 2 is a vertical sectional view of the utility model;

[0017] Figure 3 is the utility model Figure 2 enlarged view at A in;

[0018] Figure 4 is the utility model Figure 2 enlarged view at B in;

[0019] In the figure: 1, bottom support plate; 2, support rod; 3, support ring; 4, demagnetizer shell; 5, programmable controller; 6, feed pipe; 7, material guiding plate; 8, electromagnet; 9, feeding cylinder; 10, spiral feeder; 11, first installation groove; 12, first motor; 13, second motor; 14, gear; 15, toothed ring; 16, discharge port; 17, feed port; 18, second installation groove; 19, discharge pipe; 20, electric discharge valve; 21, support plate. Detailed Embodiments

[0020] 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 of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Embodiment 1

[0022] Please refer to Figures 1 - 4, the present utility model provides the following technical solutions: A demagnetizer for graphite negative electrode materials, comprising: a demagnetizer housing 4, a support mechanism is assembled on the lower part of the outer side wall of the demagnetizer housing 4, a programmable controller 5 of model VH-24MR is fixedly connected to the upper part of the outer side wall of the demagnetizer housing 4, a feed pipe 6 communicating with the inside of the demagnetizer housing 4 is fixedly connected to the top end of the outside of the demagnetizer housing 4, an annular first installation groove 11 is formed on the inner wall of the demagnetizer housing 4, an electromagnet 8 of model H1506030 is fixedly connected inside the first installation groove 11, a discharge pipe 19 communicating with the inside of the demagnetizer housing 4 is fixedly connected to the bottom end of the outside of the demagnetizer housing 4, a spiral feeding mechanism for vertically upward feeding is assembled between the demagnetizer housing 4 and the inside of the discharge pipe 19, a guide plate 7 is connected to the outside of the spiral feeding mechanism, an electric discharge valve 20 of model Z941H-16 / 25C is fixedly connected inside the discharge pipe 19 below the spiral feeding mechanism, and the electromagnet 8, the spiral feeding mechanism and the electric discharge valve 20 are electrically connected to the programmable controller 5.

[0023] Refer to the appendix Figure 1 , 2 Refer to FIGS. 3 and 4. When the demagnetizer for graphite negative electrode materials is in use, graphite is poured into the demagnetizer housing 4 through the feed pipe 6. The electromagnet 8 is controlled to be energized and the spiral feeding mechanism is started through the programmable controller 5. The spiral feeding mechanism feeds the graphite vertically upward. The graphite slides along the guide plate 7 and contacts the electromagnet 8. The electromagnet 8 adsorbs the magnetic substances in the graphite. The graphite with the adsorbed magnetic substances falls to the bottom end of the demagnetizer housing 4 and is then fed vertically upward by the spiral feeding mechanism to contact the electromagnet 8 again. This process is repeated until the magnetic substances in the graphite are removed. The electric discharge valve 20 is controlled to open through the programmable controller 5. The graphite is discharged through the spiral feeding mechanism and the discharge pipe 19 and collected. After the graphite is collected, the electromagnet 8 is controlled to be powered off through the programmable controller 5. The magnetic substances fall and are discharged through the spiral feeding mechanism and the discharge pipe 19 and collected. After the magnetic substances are collected, the demagnetization of the graphite is completed.

[0024] Specifically, the support mechanism includes a bottom support plate 1 arranged on the ground and a support ring 3 fixedly connected to the outer side wall of the demagnetizer housing 4. A plurality of support rods 2 are fixedly connected at equal intervals in the circumferential direction between the top end of the bottom support plate 1 and the bottom end of the support ring 3.

[0025] Refer to the appendix Figure 1 , the support mechanism supports the demagnetizer housing 4 by supporting the support ring 3 through four support rods 2.

[0026] Specifically, the spiral feeding mechanism includes a first motor 12 of model 5IK90RGU-CF fixedly connected to the top of the demagnetizer shell 4, a second mounting groove 18 opened at the top of the discharge pipe 19, and a support plate 21 fixedly connected to the inside of the discharge pipe 19 and located between the second mounting groove 18 and the electric discharge valve 20. The output shaft of the first motor 12 passes through the demagnetizer shell 4 and extends into the demagnetizer shell 4, and is connected to the spiral feeder 10 through a coupling. The bottom end of the spiral feeder 10 is connected to the support plate 21 through a bearing. A feeding barrel 9 located outside the spiral feeder 10 is connected between the top wall of the demagnetizer shell 4 and the bottom wall of the second mounting groove 18. The feeding barrel 9 is connected to the discharge pipe 19. A plurality of feed ports 17 connecting the demagnetizer shell 4 and the feeding barrel 9 are opened at the bottom of the feeding barrel 9. A plurality of discharge ports 16 connecting the demagnetizer shell 4 and the feeding barrel 9 are opened at the top of the feed guide plate 7. The first motor 12 is electrically connected to the programmable controller 5.

[0027] See attached Figures 2 - 4 , the spiral feeding mechanism is started by controlling the first motor 12 through the programmable controller 5, the first motor 12 drives the output shaft to rotate, driving the spiral feeder 10 to rotate, the graphite in the demagnetizer shell 4 enters the feeding barrel 9 through multiple feeding ports 17, the rotating spiral feeder 10 feeds vertically, and the graphite falls on the guide plate 7 through multiple discharge ports 16, and then the guide plate 7 slides down to contact the electromagnet 8, realizing vertical upward feeding.

[0028] Specifically, the bottom end of the demagnetizer shell 4 is arranged in an inclined structure, and the inclined bottom end is flush with the bottom ends of the multiple feed ports 17.

[0029] See attached Figure 4 , it is convenient for the graphite in the demagnetizer shell 4 to enter the feeding tube 9 through multiple feeding ports 17.

[0030] Example 2

[0031] The difference between this embodiment and the first embodiment is that:

[0032] Specifically, a rotation drive mechanism is installed between the feed barrel 9 and the demagnetizer shell 4, the outer wall of the feed barrel 9 is provided with a threaded structure, the guide plate 7 is connected to the feed barrel 9 through the threaded cooperation between the transmission nut and the outer wall of the feed barrel 9, and the rotation drive mechanism is electrically connected to the programmable controller 5.

[0033] See attached Figure 2 , the programmable controller 5 controls the rotation drive mechanism to start, and the rotation drive mechanism drives the feeding barrel 9 to rotate. During the rotation of the feeding barrel 9, the guide plate 7 moves up and down on the feeding barrel 9 to adjust its position, so as to avoid excessive adsorption of magnetic material at a certain position of the electromagnet 8, resulting in a decrease in adsorption force and affecting the adsorption effect of the magnetic material in the graphite.

[0034] Specifically, the rotation driving mechanism includes a second motor 13 of model 5IK90RGU-CF fixedly connected to the top end of the demagnetizer housing 4, and a toothed ring 15 fixedly connected to the feeding cylinder 9 above a plurality of discharge ports 16. The output shaft of the second motor 13 penetrates through the demagnetizer housing 4 and extends into the demagnetizer housing 4, and is fixedly sleeved with a gear 14 meshed with the toothed ring 15. The second motor 13 is electrically connected to the programmable controller 5.

[0035] Refer to the appendix Figure 3 , the rotation driving mechanism controls the second motor 13 to start through the programmable controller 5. The second motor 13 drives the output shaft to rotate forward or backward, drives the gear 14 to rotate forward or backward, drives the toothed ring 15 to rotate forward or backward, and drives the feeding cylinder 9 to rotate forward or backward, so as to realize the rotational drive of the feeding cylinder 9.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A graphite negative electrode material demagnetizer, characterized in that: include: A demagnetizer shell (4), wherein a support mechanism is mounted on the outer wall of the demagnetizer shell (4) at the bottom, a programmable controller (5) is fixedly connected to the outer wall of the demagnetizer shell (4) at the top, a feed pipe (6) connected to the inside of the demagnetizer shell (4) is fixedly connected to the top of the outer wall of the demagnetizer shell (4), an annular first mounting groove (11) is formed on the inner wall of the demagnetizer shell (4), an electromagnet (8) is fixedly connected to the inside of the first mounting groove (11), and the outer wall of the demagnetizer shell (4) is provided with a plurality of magnetic fields. A discharge pipe (19) connected to the inside of the demagnetizer shell (4) is fixedly connected to the bottom end thereof; a spiral feeding mechanism for feeding materials vertically upward is arranged between the demagnetizer shell (4) and the inside of the discharge pipe (19); a guide plate (7) is externally connected to the spiral feeding mechanism; an electric discharge valve (20) is fixedly connected to the inside of the discharge pipe (19) below the spiral feeding mechanism; and the electromagnet (8), the spiral feeding mechanism and the electric discharge valve (20) are electrically connected to the programmable controller (5).

2. A graphite negative electrode material demagnetizer according to claim 1, characterized in that: The support mechanism comprises a bottom support plate (1) arranged on the ground and a support ring (3) fixedly connected to the outer wall of a demagnetizer shell (4); a plurality of support rods (2) are fixedly connected at equal intervals along the circumferential direction between the top end of the bottom support plate (1) and the bottom end of the support ring (3).

3. A graphite negative electrode material demagnetizer according to claim 1, characterized in that: The spiral feeding mechanism comprises a first motor (12) fixedly connected to the top of the demagnetizer shell (4), a second mounting groove (18) provided at the top of the discharge pipe (19), and a support plate (21) fixedly connected to the inside of the discharge pipe (19) and located between the second mounting groove (18) and the electric discharge valve (20); the output shaft of the first motor (12) passes through the demagnetizer shell (4) and extends into the demagnetizer shell (4) and is connected to the spiral feeder (10) via a coupling; the bottom end of the spiral feeder (10) is connected to the support plate (21) via a bearing; A feeding drum (9) located outside the spiral feeder (10) is connected between the top wall of the demagnetizer shell (4) and the bottom wall of the second mounting groove (18), and the feeding drum (9) is connected to a discharge pipe (19). A plurality of feed ports (17) connecting the demagnetizer shell (4) and the feeding drum (9) are provided at the bottom of the feeding drum (9), and a plurality of discharge ports (16) connecting the demagnetizer shell (4) and the feeding drum (9) are provided at the top of the feeding drum (9) above the guide plate (7). The first motor (12) is electrically connected to the programmable controller (5).

4. A graphite negative electrode material demagnetizer according to claim 3, characterized in that: The bottom end of the demagnetizer shell (4) is arranged in an inclined structure, and the inclined bottom end is flush with the bottom ends of the multiple feed ports (17).

5. A graphite negative electrode material demagnetizer according to claim 3, characterized in that: A rotation drive mechanism is installed between the feed barrel (9) and the demagnetizer shell (4); the outer wall of the feed barrel (9) is provided with a threaded structure; the guide plate (7) is connected to the feed barrel (9) through a transmission nut; and the rotation drive mechanism is electrically connected to the programmable controller (5).

6. A graphite negative electrode material demagnetizer according to claim 5, characterized in that: The rotary drive mechanism comprises a second motor (13) fixedly connected to the top of the demagnetizer shell (4) and a gear ring (15) fixedly connected to the feed cylinder (9) and located above the plurality of discharge ports (16); an output shaft of the second motor (13) passes through the demagnetizer shell (4) and extends into the demagnetizer shell (4) and is fixedly sleeved with a gear (14) meshingly connected to the gear ring (15); and the second motor (13) is electrically connected to the programmable controller (5).

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