Horizontal magnetic separator with inner magnetic cylinder

Abstract

The utility model relates to a horizontal magnetic separator with an inner magnetic cylinder. The horizontal magnetic separator with the inner magnetic cylinder comprises a rack, the horizontal roller is mounted on the rack, and permanent magnets are distributed on the wall of the horizontal roller; in an operation state, the feeding end of the horizontal roller is higher than the discharging end; the cleaning device comprises a cleaning pipe and a cleaning nozzle; the spraying direction of the cleaning nozzles faces the roller wall of the horizontal roller; the unloading device is positioned in the inner cavity of the horizontal roller, is close to the top of the horizontal roller and is used for separating the magnetic materials from the inner wall of the horizontal roller; the high-magnetism material hopper is arranged below the discharging device and used for collecting the magnetic materials separated from the inner wall of the horizontal roller and guiding the magnetic materials to flow out; the low-magnetism material hopper is arranged at the discharging end of the horizontal roller and used for collecting the separated non-magnetic materials; and the distributing device is arranged in the position, opposite to the cleaning device, of the inner cavity of the horizontal roller and used for allowing the to-be-selected materials to enter the horizontal roller. By adopting the horizontal magnetic separator with the inner magnetic cylinder, the problems that non-magnetic materials are carried by magnetic materials and separation leakage is caused can be solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of solid waste treatment, in particular to a horizontal internal magnetic cylinder magnetic separator. BACKGROUND

[0002] The traditional magnetic separator is a device for separating magnetic materials and non-magnetic materials by utilizing the magnetic difference of the materials, and the magnetic separator is widely used in resource recycling, mineral processing industry and other fields.

[0003] In the existing magnetic separator, the magnet is fixed, after the material enters the magnetic separator, the magnetic material is adsorbed to the outer surface of the cylinder, and with the rotation of the outer surface of the cylinder and the washing of water, the magnetic material is separated from the magnetic area, and the magnetic separation of the material is completed. However, when the magnetic material is adsorbed to the outer surface of the cylinder, the non-magnetic material is often entrained, resulting in low purity of the separated magnetic material. In addition, due to the edge effect of the magnetic material, the proportion of the non-magnetic area is large, and the contact time of the material with the magnetic area is short in the traditional magnetic separator, so the proportion of the missed selection is high, which affects the separation result. CONTENT OF THE INVENTION

[0004] In order to solve the problems of easy entrainment of non-magnetic material and missed selection of magnetic material by using the existing magnetic separator, the present application provides a horizontal internal magnetic cylinder magnetic separator.

[0005] The technical scheme provided by the present application is as follows:

[0006] The horizontal internal magnetic cylinder magnetic separator provided by the present application comprises:

[0007] A rack;

[0008] A horizontal cylinder installed on the rack, the cylinder wall of which is distributed with permanent magnets; in the running state, the feeding end of the horizontal cylinder is higher than the discharging end, so as to guide the material not adsorbed by the inner wall of the cylinder to flow to the discharging end in the inner cavity of the horizontal cylinder;

[0009] A cleaning device located in the inner cavity of the horizontal cylinder, comprising a cleaning pipe and a cleaning nozzle; the cleaning pipe is used to provide cleaning medium for the cleaning nozzle; the spraying direction of the cleaning nozzle is towards the inner wall of the cylinder, which is used to flush the entrained non-magnetic material from the material adsorbed by the inner wall of the cylinder;

[0010] A discharging device located in the inner cavity of the horizontal cylinder and close to the top thereof, which is used to separate the magnetic material from the inner wall of the cylinder;

[0011] A high-magnetic material hopper located below the discharging device, which is used to collect the magnetic material separated from the inner wall of the cylinder and guide it to flow out;

[0012] A low-magnetic material hopper located below the discharging end, which is used to collect the non-magnetic material not adsorbed by the inner wall of the cylinder and guide it to flow out;

[0013] A distributor is arranged in the horizontal drum inner cavity opposite to the cleaning device, for allowing the material to be selected to enter the horizontal drum inner cavity and to be in uniform contact with the inner wall of the drum.

[0014] In some embodiments of the present application, the discharging device comprises a discharging pipe, a discharging nozzle and a baffle plate.

[0015] The discharging pipe is used to provide flushing medium for the discharging nozzle.

[0016] The spraying direction of the discharging nozzle is opposite to the rotating direction of the horizontal drum.

[0017] In some embodiments of the present application, the discharging device is a brush, a scraper or a perforated pipe.

[0018] In some embodiments of the present application, the cleaning medium is gas or liquid.

[0019] In some embodiments of the present application, the permanent magnet is coaxial with the horizontal drum.

[0020] In some embodiments of the present application, the outermost layer of the inner wall of the drum is a corrosion-resistant wear-resistant layer.

[0021] In some embodiments of the present application, the frame is provided with a height adjusting device, which is used to adjust the height difference between the feeding end and the discharging end of the horizontal drum.

[0022] In some embodiments of the present application, the horizontal inner magnetic drum magnetic separator further comprises a drum driving mechanism; the drum driving mechanism comprises a ring gear arranged on the outer wall of the horizontal drum in the circumferential direction, a transmission mechanism mounted on the frame and a motor.

[0023] In some embodiments of the present application, the motor is a general motor, a speed-regulating motor or an explosion-proof motor.

[0024] In some embodiments of the present application, at least one of the cleaning device and the discharging device can rotate along its own axis.

[0025] The technical scheme provided by the embodiments of the present application has the following beneficial effects:

[0026] The horizontal inner magnetic drum magnetic separator provided by the present application has the feeding end of the horizontal drum higher than the discharging end when in operation. Due to the effect of gravity, the material not adsorbed by the inner wall of the drum will flow naturally to the lower discharging end. In this process, the magnetic material mixed in the non-magnetic material contacts the magnetic area multiple times and is adsorbed by the inner wall of the drum, thereby effectively reducing the missed selection.

[0027] In addition, the horizontal drum in the application is also provided with a cleaning device, which can effectively clean the magnetic materials adsorbed on the inner wall of the drum, prevent the mixing of non-magnetic materials in the magnetic materials, and further improve the efficiency of the separated magnetic materials. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to make the technical solutions in the embodiments of the application clearer, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0029] Fig. 1 A schematic view of the horizontal internal magnetic drum magnetic separator provided by the application is shown in the figure.

[0030] Fig. 2 A side view of the horizontal internal magnetic drum magnetic separator provided by the application is shown in the figure.

[0031] Fig. 3 A sectional view of the horizontal internal magnetic drum magnetic separator provided by the application is shown in the figure.

[0032] Fig. 4 A schematic view of the cleaning device is shown in the figure.

[0033] Fig. 5 A schematic view of the unloading device is shown in the figure.

[0034] In the figure: 1, frame; 2, horizontal drum; 21, feeding end; 22, discharging end; 23, permanent magnet; 24, drum inner wall; 25, corrosion-resistant wear-resistant layer; 3, cleaning device; 31, cleaning pipe; 32, cleaning nozzle; 4, unloading device; 41, unloading pipe; 42, unloading nozzle; 43, baffle; 5, high-magnetic material hopper; 6, low-magnetic material hopper; 7, distributor; 8, drum driving mechanism; 81, gear ring; 82, transmission mechanism; 83, motor; 9, height adjusting device. DETAILED DESCRIPTION

[0035] In order to make the technical solutions in the embodiments of the application clearer, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0036] The horizontal internal magnetic drum magnetic separator provided by the embodiments of the application can solve the problems of easy mixing of non-magnetic materials and missing of magnetic materials in the existing magnetic separators.

[0037] As Figs. 1-5 shown, the horizontal internal magnetic drum magnetic separator provided by the application comprises: a rack 1; a horizontal drum 2 installed on the rack 1, the drum wall of which is distributed with permanent magnets 23; in the running state, the feeding end 21 of the horizontal drum 2 is higher than the discharging end 22, so as to guide the material not adsorbed by the inner wall 24 of the drum to flow to the discharging end 22 in the inner cavity of the horizontal drum 2; a cleaning device 3 located in the inner cavity of the horizontal drum 2, comprising a cleaning pipe 31 and a cleaning nozzle 32; the cleaning pipe 31 is used for providing cleaning medium for the cleaning nozzle 32; the spraying direction of the cleaning nozzle 32 is towards the drum inner wall 24, which is used for washing the non-magnetic material carried away from the material adsorbed by the drum inner wall 24; a discharging device 4 located in the inner cavity of the horizontal drum 2 and close to the top thereof, which is used for separating the magnetic material from the drum inner wall 24; a high-magnetic material hopper 5 located below the discharging device 4, which is used for collecting the magnetic material separated from the drum inner wall 24 and guiding it to flow out; a low-magnetic material hopper 6 located below the discharging end 22, which is used for collecting the non-magnetic material not adsorbed by the drum inner wall 24 and guiding it to flow out; a distributor 7 located in the inner cavity of the horizontal drum 2 at a position opposite to the cleaning device 3, which is used for the selected material to enter the inner cavity of the horizontal drum 2 and make the selected material uniformly contact with the drum inner wall 24.

[0038] The principle of the horizontal internal magnetic drum magnetic separator provided by the application is as follows: after the material enters the horizontal drum 2 from the feeding end 21 through the distributor 7, the magnetic material is adsorbed on the drum inner wall 24, and the non-magnetic material flows along the bottom of the drum inner wall 24 to the discharging end 22 due to the action of gravity. With the rotation of the horizontal drum 2, the magnetic material adsorbed by the drum inner wall 24 is carried to the upper part of the drum inner wall 24, the cleaning nozzle 32 sprays the cleaning medium towards the drum inner wall 24, which washes the non-magnetic material carried away from the material adsorbed by the drum inner wall 24 and falls to the bottom of the drum inner wall 24 to continue flowing to the discharging end 22. In the process of flowing to the discharging end 22 along the bottom of the drum inner wall 24, the magnetic material carried away is continuously adsorbed on the drum inner wall 24, thereby reducing the possibility of missed selection. After being washed by the cleaning nozzle 32, the magnetic material adsorbed on the drum inner wall 24 is separated by the discharging device 4 when reaching the top of the drum inner wall 24, falls into the high-magnetic material hopper 5, and flows out of the horizontal drum 2, thereby obtaining the magnetic material with higher purity. The non-magnetic material flows out of the discharging end 22 into the low-magnetic material hopper 6, and is discharged from the equipment through the low-magnetic material hopper 6.

[0039] The design of the horizontal internal magnetic drum magnetic separator effectively improves the magnetic separation efficiency and the purity of the magnetic material and the non-magnetic material, and is suitable for the separation process of various minerals.

[0040] The unloading device 4 of the present application is located in the inner cavity of the horizontal drum 2 and close to the top of the drum. The unloading device 4 is used to clean the inner wall 24 of the drum by strong flushing. The magnetic materials reaching the top of the inner wall 24 of the drum are removed by the impact force of the flushing medium. In some embodiments, the unloading device 4 includes an unloading pipe 41, an unloading nozzle 42 and a baffle 43. The unloading pipe 41 is used to provide flushing medium for the unloading nozzle 42. The spraying direction of the unloading nozzle 42 is opposite to the rotating direction of the horizontal drum 2.

[0041] In some embodiments, the unloading device 4 is a brush, a scraper or a perforated pipe. Both the brush and the scraper can effectively strip the magnetic materials attached to the inner wall 24 of the drum.

[0042] The cleaning device 3 of the present application includes a cleaning pipe 31 and a cleaning nozzle 32. Specifically, the device uses pressurized gas or liquid as cleaning medium to remove the magnetic materials adsorbed on the inner wall 24 of the drum. In this process, due to the lack of adsorption force between the inner wall 24 of the drum and the magnetic materials, the non-magnetic materials are flushed out from the gap between the magnetic materials by the cleaning medium. In more detail, the cleaning pipe 31 is a pipe extending into the inner cavity of the horizontal drum 2, which is responsible for delivering the cleaning medium; while the cleaning nozzle 32 is responsible for spraying pressurized cleaning medium to the inner wall 24 of the drum. The pressurizing device of the cleaning medium can be arranged in the inner cavity of the horizontal drum 2 or outside the drum; but it is more inclined to be arranged outside the drum, so as to reduce the space occupied by the cleaning device 3 in the drum. In the selection of cleaning medium, the cleaning device 3 of the present application prefers to use liquid to avoid generating a large amount of dust during the flushing process; and further, it prefers to use water as the cleaning medium to reduce the cost. Specifically, the cleaning nozzle 32 of the present application is arranged in the inner cavity of the horizontal drum 2 and close to the side of the drum. The number of the cleaning nozzle 32 can be one or more, and the spraying direction of the cleaning nozzle 32 is towards the inner wall of the drum. In addition, the angle between the spraying direction of the cleaning nozzle 32 and the inner wall 24 of the drum is adjustable. In order to achieve this function, the cleaning nozzle 32 is installed on a bracket that can rotate axially, and the spraying direction of the cleaning nozzle 32 is changed by the axial rotation of the bracket.

[0043] Compared with the prior art of installing magnetic devices outside the drum, the present application directly embeds permanent magnets 23 on the wall of the horizontal drum 2. This design significantly improves the magnetic field strength of the inner wall 24 of the drum, so that the magnetic materials can be more effectively adsorbed and rotated with the wall. Specifically, the permanent magnets 23 are coaxial with the horizontal drum 2. Such a layout not only enhances the magnetic field effect, but also simplifies the assembly process of the drum wall.

[0044] In order to prolong the service life of the permanent magnet 23 and prevent it from being damaged by material abrasion, in some embodiments of the present application, the outermost layer of the inner wall 24 of the drum is a corrosion-resistant wear-resistant layer 25. This design ensures that the material must first wear the corrosion-resistant wear-resistant layer before it can contact the permanent magnet 23, thereby effectively delaying the wear time of the permanent magnet 23. Specifically, the corrosion-resistant wear-resistant layer 25 described in the present application is made of ceramic material, and more preferably made of silicon carbide or zirconia material.

[0045] In order to ensure that the feeding end 21 of the horizontal drum 2 is higher than the discharging end 22 in the running state, in some embodiments of the present application, the feeding end 21 of the horizontal drum 2 is set higher than the discharging end 22 during installation. In other embodiments of the present application, the rack 1 is equipped with a height adjusting device 9 for adjusting the height difference between the feeding end 21 and the discharging end 22 of the horizontal drum 2. Specifically, before use, the height adjusting device 9 can set an appropriate height difference, thereby ensuring that the material in the horizontal drum 2 flows at an appropriate speed. In this way, when the horizontal internal magnetic drum magnetic separator is running, the magnetic material is just completely adsorbed by the horizontal drum 2. Specifically, the height adjusting device 9 described in the present application includes at least one jack, which is arranged below the feeding end 21 or the discharging end 22 of the horizontal drum 2. By adjusting the lifting height of the jack, the central axis of the horizontal drum 2 can form an angle of 0 to 90 degrees with the horizontal plane, thereby adjusting the flow rate of the material in the horizontal drum 2.

[0046] In order to realize the rolling drive of the horizontal drum 2, the present application is provided with a drum drive mechanism 8 for the horizontal drum 2. In some embodiments, the drum drive mechanism 8 includes a ring gear 81 arranged circumferentially on the outer wall of the horizontal drum 2, a transmission mechanism 82 and a motor 83 mounted on the rack 1. The transmission mechanism 82 is driven to rotate by the motor 83, thereby driving the ring gear 81 and finally driving the horizontal drum 2 to roll. Compared with installing the drive mechanism at the end of the horizontal drum 2, this design enables the transmission mechanism to be arranged on the rack below the ring gear 81, thereby making the structural layout of the horizontal internal magnetic drum magnetic separator more reasonable. Specifically, the motor 83 can use a general motor, a variable speed motor or an explosion-proof motor, and the preferred choice is a variable speed motor.

[0047] Since the grade of the material entering the horizontal inner magnetic drum magnetic separator can be different, it needs to be adjusted to different working states. In some embodiments of the present application, at least one of the cleaning device 3 and the discharge device 4 can rotate around its own axis. The purpose of rotation is to adjust the included angle of the cleaning device 3 and the discharge device 4 relative to the inner wall 24 of the drum. Specifically, when it is observed that the magnetic material is not completely washed clean and part of it is still attached to the inner wall 24 of the drum, the discharge device 4 can be adjusted to change the washing angle and promote the stripping of the material from the inner wall 24 of the drum. The cleaning device 3 is adjusted to change the grade of magnetic and non-magnetic materials. For example, if the grade of the magnetic material is low, the washing pressure of the cleaning device 3 can be adjusted to wash out more non-magnetic materials, thereby improving the grade of the magnetic material.

[0048] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise explicitly specified and limited, the terms "mount", "connect", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, and it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0049] It should be noted that in the present application, relational terms such as "first" and "second" and the like are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or device including the element.

[0050] The foregoing detailed description of the application has been presented for purposes of illustration and description. Various modifications and changes can be made to these embodiments without departing from the spirit and scope of the application. It is intended that the scope of the application should not be limited by the particular representative embodiments described above.

Claims

1. A horizontal magnetic drum magnetic separator, characterized in that, The invention relates to a horizontal inner magnetic drum magnetic separator, comprising: a frame (1); a horizontal drum (2) installed on the frame (1), the drum wall of which is provided with permanent magnets (23); in the running state, the feeding end (21) of the horizontal drum (2) is higher than the discharging end (22) to guide the material not adsorbed by the inner wall (24) of the drum to flow to the discharging end (22) in the inner cavity of the horizontal drum (2); a cleaning device (3) located in the inner cavity of the horizontal drum (2), comprising a cleaning pipe (31) and a cleaning nozzle (32); the cleaning pipe (31) is used to provide cleaning medium for the cleaning nozzle (32); the spraying direction of the cleaning nozzle (32) is towards the inner wall (24) of the drum, which is used to flush the non-magnetic material carried away from the material adsorbed by the inner wall (24) of the drum; a discharging device (4) located in the inner cavity of the horizontal drum (2) and close to the top, which is used to separate the magnetic material from the inner wall (24) of the drum; a high-magnetic material hopper (5) located below the discharging device (4), which is used to collect the magnetic material separated from the inner wall (24) of the drum and guide it to flow out; a low-magnetic material hopper (6) located below the discharging end (22), which is used to collect the non-magnetic material not adsorbed by the inner wall (24) of the drum and guide it to flow out; a distributor (7) located in the inner cavity of the horizontal drum (2) opposite to the cleaning device (3), which is used to make the selected material enter the inner cavity of the horizontal drum (2) and make the selected material uniformly contact with the inner wall (24) of the drum.

2. The horizontal inner magnetic drum magnetic separator according to claim 1, wherein: the discharging device (4) comprises a discharging pipe (41), a discharging nozzle (42) and a baffle (43); the discharging pipe (41) is used to provide flushing medium for the discharging nozzle (42); the spraying direction of the discharging nozzle (42) is opposite to the rotating direction of the horizontal drum (2).

3. The horizontal inner magnetic drum magnetic separator according to claim 1, wherein: the discharging device (4) is a brush, a scraper or a perforated pipe; 4. The horizontal inner-magnetic-drum magnetic separator according to claim 1, characterized in that: the cleaning medium is gas or liquid; 5. The horizontal inner-magnetic-drum magnetic separator according to claim 1, characterized in that: the permanent magnets (23) are coaxial with the horizontal drum (2).

6. The horizontal inner magnetic drum magnetic separator according to claim 5, wherein: the outermost layer of the inner wall (24) of the drum is a corrosion-resistant wear-resistant layer (25).

7. The horizontal inner magnetic drum magnetic separator according to claim 1, wherein: the frame (1) is provided with a height adjusting device (9) for adjusting the height difference between the feeding end (21) and the discharging end (22) of the horizontal drum (2); 8. The horizontal inner-magnetic-drum magnetic separator according to claim 1, characterized in that: the horizontal inner magnetic drum magnetic separator further comprises a drum driving mechanism (8); the drum driving mechanism (8) comprises a gear ring (81) circumferentially arranged on the outer wall of the horizontal drum (2), a transmission mechanism (82) and a motor (83) installed on the frame (1); 9. The horizontal inner-magnetic-drum magnetic separator according to claim 8, characterized in that: the motor (83) is a general motor, a speed-regulating motor or an explosion-proof motor.

10. The horizontal inner-magnetic-drum magnetic separator according to claim 1, characterized in that: At least one of the cleaning device (3) and the discharge device (4) is rotatable about its own axis.

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