Electromagnetic separator

Abstract

The utility model discloses an electromagnetic separator relates to magnetic impurity removal technical field, including the shell for containing the electromagnetic coil, fills the insulating oil in the shell, is used for soaking electromagnetic coil, sets up oil pump and heat exchanger on the shell, and one end of oil pump communicates with the shell, and the other end communicates with the shell through heat exchanger, and cold water is led into heat exchanger, realizes the heat exchange cooling of insulating oil in the shell with the cold water of heat exchanger, has realized the high -efficient heat dissipation of electromagnetic coil, thereby makes the electromagnetic separator produce stable high -intensity magnetic field, and the screen that is magnetized has stable high -intensity magnetism, has improved the adsorption effect and efficiency to magnetic impurity.

Description

Technical Field

[0001] This utility model relates to the field of magnetic impurity removal technology, and in particular to an electromagnetic separator. Background Technology

[0002] In industries such as high-grade ceramics, high-voltage electrical porcelain, fine alumina, lithium battery raw materials, and kaolin, it is necessary to remove magnetic impurities such as iron powder and micro-iron powder from powders. This is especially crucial in the new energy industry, where ensuring powder purity is essential for production. However, existing technologies using permanent magnet separators for removing magnetic impurities are not ideal, primarily due to low magnetic field strength and poor adsorption efficiency for magnetic impurities. When using electromagnetic separation, higher magnetic field strength results in higher power and higher internal electromagnetic coil temperatures. These higher temperatures make the magnetic field unstable, further hindering adsorption efficiency for magnetic impurities. Therefore, achieving effective heat dissipation for the electromagnetic coils to ensure magnetic field stability and improve adsorption efficiency for magnetic impurities is of paramount importance. Utility Model Content

[0003] The purpose of this invention is to provide an electromagnetic separator to solve the problems existing in the prior art, achieve good heat dissipation of the electromagnetic coil, ensure the stability of the magnetic field strength, and improve the adsorption effect and efficiency of magnetic impurities.

[0004] To achieve the above objectives, this utility model provides the following solution:

[0005] This utility model provides an electromagnetic separator, comprising: a housing for accommodating an electromagnetic coil, the housing including an inner cylinder and an outer cylinder sleeved outside the inner cylinder, with an annular cavity formed between the two;

[0006] An electromagnetic coil is sleeved on the outside of the inner cylinder and located inside the annular cavity;

[0007] Multiple vertically stacked screens are arranged in the space that runs vertically through the inner side of the inner cylinder. The screens are magnetized to adsorb magnetic impurities.

[0008] Insulating oil is filled inside the housing and used to soak the electromagnetic coil;

[0009] An oil pump and a heat exchanger are provided. One end of the oil pump is connected to the housing, and the other end is connected to the housing through the heat exchanger. The oil pump is used to circulate the insulating oil and exchange heat with the heat exchanger.

[0010] Furthermore, it also includes a vent valve, which is located at the upper end of the housing and is used to balance the air pressure inside the housing.

[0011] Furthermore, it also includes:

[0012] The material cylinder is located inside the inner cylinder and is in clearance fit with the inner cylinder. Its upper end is the feeding end and its lower end is the discharging end. The screen is located inside the material cylinder.

[0013] A vibration spring connects the material cylinder and the housing;

[0014] A vibration motor, connected to the material cylinder, is used to drive the material cylinder to vibrate in order to prevent material blockage.

[0015] Furthermore, it also includes:

[0016] The three-way diverter valve consists of an inlet, an outlet, and a slag discharge port, wherein the inlet is connected to the discharge port.

[0017] The valve core is located inside the three-way diverter valve and is used to connect the feed inlet with the discharge outlet or slag discharge outlet.

[0018] Furthermore, the valve core is a flow divider plate;

[0019] The diversion valve plate includes a valve plate shaft and a sealing plate;

[0020] The sealing plate is fixed on the valve plate shaft and is used to seal the discharge port or slag discharge port;

[0021] The valve plate pivot is hinged at the connection between the inlet and the outlet, and is used to change the direction of the sealing plate;

[0022] The sealing plate includes two stainless steel plates and a silicone sheet, with the silicone sheet sandwiched between the two stainless steel plates and the edge of the silicone sheet protruding beyond the edge of the stainless steel plates.

[0023] Furthermore, the screen is composed of parallel strips spaced apart.

[0024] Furthermore, the top surface of the strip is a slope, and the slope is inclined towards the gap between the strips.

[0025] Furthermore, the screen includes screen one and screen two;

[0026] The inclined surfaces of the strips on the screen one slope downwards to the left and right sides respectively;

[0027] The inclined surfaces of the strips on the second screen are inclined upwards to the left and right sides, respectively.

[0028] Furthermore, it also includes:

[0029] The positioning rod and the fixing nut are provided, wherein one end of the positioning rod is provided with a limiting step and the other end is provided with a thread;

[0030] The middle of the screen one and screen two are provided with positioning holes, which are vertically alternately inserted into the positioning rod through the positioning holes and limited by the limiting step;

[0031] The fixing nut secures the first screen and the second screen to the positioning rod via the thread;

[0032] The two ends of the positioning rod are fixed inside the material cylinder.

[0033] Furthermore, the strips on screen one and screen two are stacked perpendicularly to each other.

[0034] The present invention achieves the following technical advantages over the prior art:

[0035] This utility model discloses an electromagnetic separator, in which an electromagnetic coil is immersed in insulating oil to dissipate the heat of the electromagnetic coil into the insulating oil. The insulating oil is then circulated through a heat exchanger by an oil pump to reduce the temperature of the insulating oil, thereby achieving efficient heat dissipation for the electromagnetic coil. This results in the electromagnetic separator generating a stable high-intensity magnetic field, and the magnetized screen has stable high-intensity magnetism, improving the adsorption effect and efficiency of magnetic impurities. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the main structure of the electromagnetic separator in an embodiment of this utility model;

[0038] Figure 2 This is a top view of the electromagnetic separator in an embodiment of the present invention.

[0039] Figure 3 This is a right-side structural schematic diagram of the electromagnetic separator in an embodiment of this utility model;

[0040] Figure 4 This is a schematic diagram of the main structure of the diversion valve plate in an embodiment of this utility model;

[0041] Figure 5 This is a rear view schematic diagram of the diversion valve plate in an embodiment of this utility model;

[0042] Figure 6 This is a schematic diagram of the left side of the diversion valve plate in an embodiment of the present invention;

[0043] Figure 7 for Figure 6 Enlarged view of point A in the middle;

[0044] Figure 8 This is a top view of the screen structure in an embodiment of the present invention;

[0045] Figure 9 This is a side view of the structure of screen one in an embodiment of the present utility model;

[0046] Figure 10 This is a side view of the second screen in an embodiment of the present invention.

[0047] The components are as follows: 1. Shell; 2. Screen; 21. Positioning hole; 22. Strip plate; 3. Oil pump; 4. Heat exchanger; 5. Material cylinder; 6. Vibration spring; 7. Vibration motor; 8. Three-way diverter valve; 9. Diverter valve plate; 91. Valve plate shaft; 92. Sealing plate; 921. Steel plate one; 922. Steel plate two; 923. Silicone sheet. Detailed Implementation

[0048] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0049] The purpose of this invention is to provide an electromagnetic separator to solve the problems existing in the prior art, achieve good heat dissipation of the electromagnetic coil, and improve the adsorption effect and efficiency of magnetic impurities.

[0050] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0051] like Figures 1-3 As shown, this utility model provides an electromagnetic separator, including a housing 1 for accommodating an electromagnetic coil. The housing 1 is made of carbon steel magnetic material. The housing 1 includes an inner cylinder and an outer cylinder sleeved outside the inner cylinder, forming an annular cavity between the inner and outer cylinders. The electromagnetic coil is sleeved outside the inner cylinder and located within the annular cavity. Multiple vertically stacked screens 2 are arranged in the vertically penetrating space inside the inner cylinder. The screens 2 are magnetized to adsorb magnetic impurities. The housing 1 is filled with insulating oil for soaking the electromagnetic coil. An oil pump 3 and a heat exchanger 4 are arranged on the housing 1. One end of the oil pump 3 is connected to the housing 1, and the other end is connected to the housing 1 through the heat exchanger 4. Cold water is introduced into the heat exchanger 4 to achieve heat exchange and cooling between the insulating oil in the housing 1 and the cold water in the heat exchanger 4.

[0052] The electromagnetic coil is immersed in insulating oil, which dissipates the heat of the electromagnetic coil into the insulating oil. The insulating oil is then circulated through the heat exchanger 4 by the oil pump 3, which reduces the temperature of the insulating oil. This achieves efficient heat dissipation for the electromagnetic coil, thereby generating a stable high-intensity magnetic field in the electromagnetic separator. The magnetized screen 2 has stable high-intensity magnetism, which improves the adsorption effect and efficiency of magnetic impurities.

[0053] As an example of implementation, a vent valve is provided at the upper end of the housing 1 to balance the air pressure inside the housing 1 and improve the service life of the housing 1.

[0054] As an example of an implementable approach, such as Figures 1-2 As shown, a material cylinder 5 is provided inside the inner cylinder and is fitted with a gap between the inner cylinder and the inner cylinder. The upper end of the material cylinder 5 is the feeding end and the lower end is the discharging end. The screen 2 is placed inside the material cylinder 5. The material cylinder 5 is connected to the shell 1 through a vibration spring 6. The material cylinder 5 is connected to the vibration spring 7 to drive the material cylinder 5 to vibrate and prevent material blockage.

[0055] As an example of an implementable approach, such as Figure 1 and Figures 3-7 As shown, a three-way diverter valve 8 is connected to the discharge end of the feed cylinder 5. The three-way diverter valve 8 consists of a feed inlet, a discharge outlet, and a slag discharge outlet. A valve core is installed inside the three-way diverter valve 8 to connect the feed inlet with the discharge outlet or slag discharge outlet. The valve core can be a ball valve or a valve plate, such as... Figures 4-7 As shown, in this embodiment, the valve core is a diversion valve plate 9; the diversion valve plate 9 consists of a valve plate shaft 91 and a sealing plate 92; the sealing plate 92 is welded or bonded to the valve plate shaft 91, and is used to seal the discharge port or slag discharge port; the valve plate shaft 91 is hinged at the connection between the inlet and outlet, and is used to change the direction of the sealing plate 92. The sealing plate 92 consists of two 304 stainless steel plates and a silicone sheet 923, which is bonded or riveted between the two stainless steel plates, and the edge of the silicone sheet 923 protrudes beyond the edge of the stainless steel plate, such as... Figures 5-7 As shown, in this embodiment, the silicone sheet 923 is fixed between steel plate 921 and steel plate 922 by rivets. The good sealing and deformation properties of silicone effectively improve the diversion effect of the three-way diverter valve 8.

[0056] As an example of an implementable approach, such as Figures 8-10 As shown, the screen 2 is composed of parallel strips 22 spaced apart. The top surface of the strips 22 is inclined, and the inclined surface is inclined towards the gap between the strips 22. When the powder or slurry passes through the screen 2, it slides down in the inclined direction under the action of the inclined surface, which increases its path in the material cylinder 5, increases the exposure time of magnetic impurities in the material cylinder 5, and improves the adsorption effect of magnetic impurities.

[0057] As an example of an implementable approach, such as Figures 9-10 As shown, the screen 2 can also be composed of screen one and screen two; the inclined surfaces of the strips 22 on screen one are inclined downwards to the left and right sides respectively, and the inclined surfaces of the strips 22 on screen two are inclined upwards to the left and right sides respectively. The strips 22 on screen one and screen two are stacked perpendicularly to each other, so that the powder or slurry is dispersed to the left and right sides when passing through screen one, and slides to the middle when passing through screen two. Under the alternating action of screen one and screen two, the magnetic impurities are fully dispersed and exposed, improving the adsorption effect of magnetic impurities.

[0058] As an example of implementation, it also includes a positioning rod and a fixing nut. One end of the positioning rod is provided with a limiting step, and the other end is provided with a thread. A positioning hole 21 is provided in the middle of screen one and screen two. Screen one and screen two are vertically alternately inserted through the positioning hole 21 and limited by the limiting step. The fixing nut fixes screen one and screen two to the positioning rod by the thread. The two ends of the positioning rod are fixed in the material cylinder 5 to improve the stability of the screen.

[0059] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. An electromagnetic separator, characterized in that, include: A housing for accommodating an electromagnetic coil, the housing comprising an inner cylinder and an outer cylinder sleeved outside the inner cylinder, with an annular cavity formed between the two; An electromagnetic coil is sleeved on the outside of the inner cylinder and located inside the annular cavity; Multiple vertically stacked screens are arranged in the space that runs vertically through the inner side of the inner cylinder. The screens are magnetized to adsorb magnetic impurities. Insulating oil is filled inside the housing and used to soak the electromagnetic coil; An oil pump and a heat exchanger are provided. One end of the oil pump is connected to the housing, and the other end is connected to the housing through the heat exchanger. The oil pump is used to circulate the insulating oil and exchange heat with the heat exchanger.

2. The electromagnetic separator according to claim 1, characterized in that, The upper end of the shell is equipped with a vent valve to balance the air pressure inside the shell.

3. The electromagnetic separator according to claim 1, characterized in that, Also includes: The material cylinder is located inside the inner cylinder and is in clearance fit with the inner cylinder. Its upper end is the feeding end and its lower end is the discharging end. The screen is located inside the material cylinder. A vibration spring connects the material cylinder and the housing; A vibration motor, connected to the material cylinder, is used to drive the material cylinder to vibrate in order to prevent material blockage.

4. The electromagnetic separator according to claim 3, characterized in that, Also includes: The three-way diverter valve consists of an inlet, an outlet, and a slag discharge port, wherein the inlet is connected to the discharge port. The valve core is located inside the three-way diverter valve and is used to connect the feed inlet with the discharge outlet or slag discharge outlet.

5. The electromagnetic separator according to claim 4, characterized in that, The valve core is a flow divider valve plate; The diversion valve plate includes a valve plate shaft and a sealing plate; The sealing plate is fixed on the valve plate shaft and is used to seal the discharge port or slag discharge port; The valve plate pivot is hinged at the connection between the inlet and the outlet, and is used to change the direction of the sealing plate; The sealing plate includes two stainless steel plates and a silicone sheet, with the silicone sheet sandwiched between the two stainless steel plates and the edge of the silicone sheet protruding beyond the edge of the stainless steel plates.

6. The electromagnetic separator according to claim 5, characterized in that, The screen is composed of parallel strips spaced at intervals.

7. The separator according to claim 6, characterized in that, The top surface of the strip is a slope, and the slope is inclined towards the gap between the strips.

8. The separator according to claim 7, characterized in that, The screen includes screen one and screen two; The inclined surfaces of the strips on the screen one slope downwards to the left and right sides respectively; The inclined surfaces of the strips on the second screen are inclined upwards to the left and right sides, respectively.

9. The electromagnetic separator according to claim 8, characterized in that, Also includes: The positioning rod and the fixing nut are provided, wherein one end of the positioning rod is provided with a limiting step and the other end is provided with a thread; The middle of the screen one and screen two are provided with positioning holes, which are vertically alternately passed through the positioning holes and are limited by the limiting steps; The fixing nut secures the first screen and the second screen to the positioning rod via the thread; The two ends of the positioning rod are fixed inside the material cylinder.

10. The electromagnetic separator according to claim 9, characterized in that, The strips on screen one and screen two are stacked perpendicularly to each other.

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