Electromagnetic iron remover and iron removal method

Abstract

The electromagnetic iron remover comprises a supporting frame, an electromagnetic block is arranged at the top of the supporting frame, an impurity removal channel for materials to pass through is formed in the electromagnetic block, a quantitative feeding mechanism communicating with the impurity removal channel is arranged at the top of the electromagnetic block, and a detection bin communicating with the impurity removal channel is arranged at the bottom of the electromagnetic block; a baffle valve is arranged at the bottom of the detection bin, a metal detector is arranged in the detection bin and electrically connected with a controller, a discharging bin is connected to the bottom of the detection bin, a first material pipe, a second material pipe and a slag discharging pipe which are distributed in an annular array are connected to the bottom of the discharging bin at the same time, and the first material pipe is used for discharging materials with impurities reaching the standard; the first material pipe is used for discharging materials with impurities not reaching the standard, the second material pipe is used for discharging materials with impurities not reaching the standard, the slag discharging pipe is used for discharging metal impurities, a pipe opening switching mechanism is further arranged at the bottom of the discharging bin, and the pipe opening switching mechanism is used for only opening any pipe opening of the first material pipe, the second material pipe and the slag discharging pipe.

Description

Technical Field

[0001] The present application relates to the technical field of impurity removal equipment, and in particular to an electromagnetic iron remover and an iron removal method. Background Art

[0002] Electromagnetic iron remover is a device that can generate strong magnetic attraction. It can remove ferromagnetic impurities mixed in materials to ensure the safe and normal operation of mechanical equipment such as crushers and grinders in the conveying system. It can also be used to remove impurities from special materials, thereby significantly improving the quality of raw materials. Existing electromagnetic iron removers are too dependent on the adsorption capacity of electromagnets. After the material is cleaned of iron impurities once, it directly enters the next station. There may be a situation where the cleaning is not in place, and the impurity removal effect is difficult to guarantee. Summary of the invention

[0003] The main purpose of the present application is to provide an electromagnetic iron remover and an iron removal method, aiming to solve the technical problem that the existing electromagnetic iron remover is difficult to ensure the impurity removal effect.

[0004] To achieve the above-mentioned purpose, the present application provides an electromagnetic iron remover, including a support frame, an electromagnetic block is arranged on the top of the support frame, a de-impurity channel for passing materials is opened inside the electromagnetic block, a quantitative feeding mechanism connected to the de-impurity channel is arranged on the top of the electromagnetic block, a detection bin connected to the de-impurity channel is arranged at the bottom of the electromagnetic block, a baffle valve is arranged at the bottom of the detection bin, a metal detector is arranged in the detection bin, the metal detector is electrically connected to a controller, a discharge bin is connected to the bottom of the detection bin, and a first material pipe, a second material pipe and a slag discharge pipe distributed in a ring array are simultaneously connected to the bottom of the discharge bin, the first material pipe is used to discharge materials that meet the de-impurity standards, the second material pipe is used to discharge materials that do not meet the de-impurity standards, the slag discharge pipe is used to discharge metal impurities, and a pipe mouth switching mechanism is also arranged at the bottom of the discharge bin, the pipe mouth switching mechanism is used to open only any one pipe mouth of the first material pipe, the second material pipe and the slag discharge pipe.

[0005] Optionally, the pipe mouth switching mechanism includes a rotating drive device electrically connected to the controller, the rotating drive device is arranged at the bottom of the discharge bin, the rotating drive device is connected to a rotating disk located at the bottom of the discharge bin through a rotating shaft, the rotating disk is connected to a fan-shaped material guide plate, and the fan-shaped material guide plate is used to cover any two pipe mouths of the first material pipe, the second material pipe and the slag discharge pipe.

[0006] Optionally, the fan-shaped material guide plate is arranged at an angle.

[0007] Optionally, the quantitative feeding mechanism includes a feed hopper, a feed cylinder is connected to the bottom of the feed hopper, a rotating discharge assembly is arranged in the feed cylinder, a guide cylinder is connected to the bottom of the feed cylinder, the guide cylinder is connected to the top of the electromagnetic block and communicated with the impurity removal channel.

[0008] Optionally, the rotary discharging assembly includes a horizontally arranged rotating shaft, which is connected to a drive motor located on the outer wall of the feed barrel. The drive motor is electrically connected to the controller, and a plurality of stirring blades distributed in a circular array are connected to the rotating shaft along the axial direction of the rotating shaft. The other ends of the stirring blades can fit the inner wall of the feed barrel.

[0009] Optionally, the impurity removal channel is wavy.

[0010] Optionally, a support plate is provided on the top of the electromagnetic block, a fan electrically connected to the controller is provided on the support plate, the fan is connected to an air supply pipe, and the other end of the air supply pipe is connected to the side wall of the material guide barrel.

[0011] Optionally, at least one vibrator is disposed on the outer wall of the material guiding cylinder.

[0012] Optionally, a cooling device is also provided on the top of the support frame, and the cooling device includes a cooling cylinder sleeved on the outer wall of the electromagnetic block, a cavity is provided inside the cooling cylinder, a temperature sensor electrically connected to the controller is provided in the cavity, and a first pipe and a second pipe connected to the cavity are respectively connected on both sides of the cooling cylinder, the first pipe is used to pass the cooling medium, and the second pipe is used to discharge the cooling medium.

[0013] To achieve the above object, the present application also provides an iron removal method, based on the above-mentioned electromagnetic iron remover, comprising the following steps:

[0014] Add the batch of materials into the feed hopper;

[0015] The rotating discharging assembly is rotated for a preset time so that a certain amount of material passes through the material guide cylinder and enters the impurity removal channel of the electromagnetic block, and the electromagnetic block is energized at the same time;

[0016] The metal impurities in the material are adsorbed on the inner wall of the impurity removal channel through the energized electromagnetic block;

[0017] The cleaned materials enter the inspection chamber from the impurity removal channel, and the metal detector is used to detect whether there are still metal impurities in the materials;

[0018] If it does not exist, the rotating disk and the fan-shaped material guide plate are driven to rotate to a corresponding angle by the rotary drive device, so that the fan-shaped material guide plate covers the pipe openings of the second material pipe and the slag discharge pipe, and then the baffle valve is opened to allow the material to enter the discharge bin from the detection bin and finally be discharged from the first material pipe;

[0019] If it exists, the rotating disk and the fan-shaped material guide plate are driven to rotate to a corresponding angle by the rotary drive device, so that the fan-shaped material guide plate covers the pipe openings of the first material pipe and the slag discharge pipe, and then the baffle valve is opened to allow the material to enter the discharge bin from the detection bin and finally be discharged from the second material pipe;

[0020] After the material is discharged from the first material pipe or the second material pipe, the rotating disk and the fan-shaped material guide plate are driven by the rotary drive device to rotate to a corresponding angle, so that the fan-shaped material guide plate covers the pipe openings of the first material pipe and the second material pipe, and then the metal detector is closed and the electromagnetic block is powered off, and the fan is started to generate airflow at the same time, so that the metal impurities on the inner wall of the impurity removal channel are finally discharged through the detection bin, the discharge bin and the slag discharge pipe in sequence;

[0021] Return to the step of rotating the rotary discharging assembly for a preset time until all the materials in the feed hopper enter the material guide cylinder.

[0022] The beneficial effects that this application can achieve are as follows:

[0023] When the present application cleans the iron and other metal impurities in the material, the material is fed into the impurity removal channel of the electromagnetic block through the quantitative feeding mechanism. At this time, the electromagnetic block is energized to adsorb the metal impurities in the material passing through the impurity removal channel, so that the metal impurities are adsorbed on the inner wall of the impurity removal channel, and the material enters the detection bin from the impurity removal channel. At this time, the metal detector can be used to detect whether the material still contains metal impurities. If not, the pipe mouth switching mechanism only opens the pipe mouth of the first material pipe, and then opens the baffle valve to discharge the impurity-free material from the first material pipe, which is convenient for subsequent centralized collection or transportation to the next station. If metal impurities are detected, If the material does not meet the quality standards, only the nozzle of the second material pipe is opened through the nozzle switching mechanism, so that the material that does not meet the impurity removal standards is discharged from the second material pipe, so that the material that does not meet the standards can be added back to the quantitative feeding mechanism later. After the material is discharged from the first material pipe or the second material pipe, the metal detector is turned off and the electromagnetic block is powered off, so that the metal impurities on the inner wall of the impurity removal channel fall off and pass through the detection bin and the discharge bin in turn, and are finally discharged from the slag discharge pipe, so that the impurity removal channel is ready for the next impurity removal work. Therefore, the present application adds a detection process to the material after impurity removal, so that the material is treated differently according to the detection situation, so as to ensure that only the material that achieves the impurity removal effect can enter the next process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the prior art description. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0025] Figure 1 This is a schematic structural diagram of an electromagnetic iron remover in an embodiment of the present application;

[0026] Figure 2 for Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0027] Figure 3 This is a schematic diagram of the arrangement structure of the fan-shaped guide plate in the discharge bin in the embodiment of the present application (top view).

[0028] Reference numerals:

[0029] 110-support frame, 120-electromagnetic block, 121-impurity removal channel, 130-quantitative feeding mechanism, 131-feeding hopper, 132-feeding barrel, 133-rotating discharging assembly, 1331-rotating shaft, 1332-stirring blade, 134-material guide barrel, 140-detection bin, 150-baffle valve, 160-metal detector, 170-controller, 180-discharging bin, 190-first material pipe, 210-second material pipe, 220-slag discharge pipe, 230-pipe mouth switching mechanism, 231-rotating drive device, 232-rotating disk, 233-fan-shaped material guide plate, 240-fan, 250-air supply pipe, 260-vibrator, 270-cooling device, 271-cooling barrel, 272-temperature sensor, 273-first pipeline, 274-second pipeline, 280-support plate.

[0030] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0033] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0035] Example 1

[0036] Reference Figure 1-Figure 3 The present embodiment provides an electromagnetic iron remover, including a support frame 110, an electromagnetic block 120 is arranged on the top of the support frame 110, an impurity removal channel 121 for passing materials is opened inside the electromagnetic block 120, a quantitative feeding mechanism 130 connected to the impurity removal channel 121 is arranged on the top of the electromagnetic block 120, a detection chamber 140 connected to the impurity removal channel 121 is arranged at the bottom of the electromagnetic block 120, a baffle valve 150 is arranged at the bottom of the detection chamber 140, a metal detector 160 is arranged in the detection chamber 140, and the metal detector 160 is electrically connected to the controller 1 70. A discharge bin 180 is connected to the bottom of the inspection bin 140. A first material pipe 190, a second material pipe 210 and a slag discharge pipe 220 distributed in a circular array are simultaneously connected to the bottom of the discharge bin 180. The first material pipe 190 is used to discharge materials that meet the impurity removal standards, the second material pipe 210 is used to discharge materials that do not meet the impurity removal standards, and the slag discharge pipe 220 is used to discharge metal impurities. A pipe opening switching mechanism 230 is also provided at the bottom of the discharge bin 180. The pipe opening switching mechanism 230 is used to open only any one of the first material pipe 190, the second material pipe 210 and the slag discharge pipe 220.

[0037] In this embodiment, when cleaning metal impurities such as iron in the material, a quantitative amount of the material is fed into the impurity removal channel 121 of the electromagnetic block 120 through the quantitative feeding mechanism 130. At this time, the electromagnetic block 120 is energized to adsorb the metal impurities in the material passing through the impurity removal channel 121, so that the metal impurities are adsorbed on the inner wall of the impurity removal channel 121, and the material enters the detection chamber 140 from the impurity removal channel 121. At this time, the metal detector 160 can be used to detect whether the material still contains metal impurities. If not detected, the nozzle switching mechanism 230 only opens the nozzle of the first material pipe 190, and then opens the baffle valve 150 to discharge the impurity-removed material from the first material pipe 190, so as to facilitate subsequent centralized collection or transportation to the next workstation. If metal impurities are detected, the nozzle switching mechanism 230 only opens the nozzle of the second material pipe 210 to make the impurity removal not up to standard. The material that does not meet the standard is discharged from the second material pipe 210, so that the material that does not meet the standard can be added back to the quantitative feeding mechanism 130 later. After the material is discharged from the first material pipe 190 or the second material pipe 210, the metal detector 160 is turned off and the electromagnetic block 120 is powered off, so that the metal impurities on the inner wall of the impurity removal channel 121 fall off and pass through the detection bin 140 and the discharge bin 180 in turn, and are finally discharged from the slag discharge pipe 220, so that the impurity removal channel 121 is ready for the next impurity removal work. Therefore, this embodiment adds a detection process to the impurity-removed material, so that the material is processed differently according to the detection situation, so as to ensure that the material that achieves the impurity removal effect can enter the next process, and the controller 170 can control the electromagnetic block 120, the baffle valve 150 and the pipe mouth switching mechanism 230 to perform corresponding actions according to the detection signal of the metal detector 160, without the need for manual management, and has a high degree of automation.

[0038] It should be noted that the controller 170 may adopt a PLC controller of model S7-200 to meet the use requirements.

[0039] As an optional embodiment, the pipe mouth switching mechanism 230 includes a rotating drive device 231 electrically connected to the controller 170, and the rotating drive device 231 is arranged at the bottom of the discharge bin 180. The rotating drive device 231 is connected to a rotating disk 232 located at the bottom of the discharge bin 180 through a rotating shaft, and the rotating disk 232 is connected to a fan-shaped material guide plate 233. The fan-shaped material guide plate 233 is used to cover any two pipe mouths of the first material pipe 190, the second material pipe 210 and the slag discharge pipe 220.

[0040] In this embodiment, when it is necessary to switch and open different pipe openings, the rotating disk 232 is driven to rotate by the rotating drive device 231, thereby driving the fan-shaped material guide plate 233 to rotate at different angles along the inner wall of the discharge bin 180, so that the fan-shaped material guide plate 233 blocks any two pipe openings of the first material pipe 190, the second material pipe 210 and the slag discharge pipe 220, so that the other pipe opening is exposed, thereby achieving the effect of discharging materials or metal impurities from different pipes respectively.

[0041] It should be noted that the rotation drive device 231 can adopt a stepper motor or a servo motor, or a swing cylinder, which can realize the function of driving the rotating disk 232 to rotate automatically.

[0042] As an optional embodiment, the fan-shaped guide plate 233 is arranged at an angle, which can help promote the material or metal impurities to slide downward to the corresponding pipe opening through the fan-shaped guide plate 233 to avoid blockage.

[0043] As an optional embodiment, the quantitative feeding mechanism 130 includes a feed hopper 131, a feed cylinder 132 is connected to the bottom of the feed hopper 131, a rotating discharge assembly 133 is arranged in the feed cylinder 132, and a material guide cylinder 134 is connected to the bottom of the feed cylinder 132. The material guide cylinder 134 is connected to the top of the electromagnetic block 120 and is connected to the impurity removal channel 121.

[0044] In this embodiment, when quantitative feeding is required, the material in the feed hopper 131 can be allowed to enter the feed barrel 132 by rotating the rotary discharge component 133. At the same time, under the tumbling action of the rotary discharge component 133, the material can be promoted to enter the guide barrel 134 from the feed barrel 132 and finally enter the impurity removal channel 121. When the rotary discharge component 133 stops rotating, the material no longer flows, thereby realizing quantitative feeding of the material into the impurity removal channel 121.

[0045] As an optional embodiment, the rotating discharging assembly 133 includes a horizontally arranged rotating shaft 1331, which is connected to a driving motor located on the outer wall of the feed barrel 132, and the driving motor is electrically connected to the controller 170. A plurality of stirring blades 1332 distributed in a circular array are axially connected to the rotating shaft 1331 along the rotating shaft 1331, and the other ends of the stirring blades 1332 can be attached to the inner wall of the feed barrel 132.

[0046] In this embodiment, when feeding is required, the driving motor drives the rotating shaft 1331 to rotate, thereby driving the stirring blades 1332 to roll to promote the flow of materials. When the rotating shaft 1331 stops rotating, the stirring blades 1332 adhere to the inner wall of the feeding barrel 132, so that the material no longer flows, thereby stopping the feeding. Therefore, the material feed amount can be controlled by setting the running time of the driving motor.

[0047] As an optional embodiment, the impurity removal channel 121 is wavy, which can increase the travel of the material in the impurity removal channel 121 and increase the contact area between the impurity removal channel 121 and the material, thereby improving the adsorption efficiency of metal impurities in the material and reducing the disadvantage of using a straight channel to allow the material to pass quickly and directly but resulting in poor impurity removal effect.

[0048] As an optional embodiment, a support plate 280 is provided on the top of the electromagnetic block 120, and a fan 240 electrically connected to the controller 170 is provided on the support plate 280. The fan 240 is connected to an air supply pipe 250, and the other end of the air supply pipe 250 is connected to the side wall of the material guide cylinder 134.

[0049] In this embodiment, when metal impurities need to be discharged, since the impurity removal channel 121 is wavy, there is a certain risk of metal impurities accumulating at the bends of the wavy impurity removal channel 121. Therefore, the fan 240 can be turned on and air can be supplied to the material guide cylinder 134 through the air supply pipe 250. The air flow enters the impurity removal channel 121, which can promote the smooth discharge of metal impurities in the impurity removal channel 121, thereby ensuring the cleanliness of the impurity removal channel 121 to ensure the impurity removal effect next time.

[0050] As an optional embodiment, at least one vibrator 260 is disposed on the outer wall of the material guiding cylinder 134 , and the vibrator 260 can generate vibration, thereby facilitating the material to smoothly enter the impurity removal channel 121 .

[0051] As an optional embodiment, a cooling device 270 is also provided on the top of the support frame 110. The cooling device 270 includes a cooling cylinder 271 which is sleeved on the outer wall of the electromagnetic block 120. A cavity is provided inside the cooling cylinder 271. A temperature sensor 272 which is electrically connected to the controller 170 is provided in the cavity. A first pipe 273 and a second pipe 274 which are connected to the cavity are respectively connected on both sides of the cooling cylinder 271. The first pipe 273 is used to pass a cooling medium, and the second pipe 274 is used to discharge the cooling medium.

[0052] In this embodiment, when the electromagnetic block 120 is used for too long or fails, it will cause the temperature to be too high. Here, the temperature of the electromagnetic block 120 can be detected in real time by the temperature sensor 272. When the temperature is too high, the cooling medium (cooling water or cooling gas) is introduced through the first pipe 273, and the cooling medium enters the cavity of the cooling cylinder 271, thereby covering and cooling the electromagnetic block 120. At the same time, the cooling medium after heat exchange is discharged through the second pipe 274, so that the cooling medium can be continuously introduced and discharged to achieve the effect of rapid cooling.

[0053] Example 2

[0054] Reference Figure 1-Figure 3This embodiment provides an iron removal method, based on the above-mentioned electromagnetic iron remover, comprising the following steps:

[0055] Adding batches of materials into the feed hopper 131;

[0056] The rotating discharging assembly 133 is rotated for a preset time so that a certain amount of material passes through the material guide cylinder 134 and enters the impurity removal channel 121 of the electromagnetic block 120, and the electromagnetic block 120 is energized at the same time;

[0057] The metal impurities in the material are adsorbed on the inner wall of the impurity removal channel 121 by the energized electromagnetic block 120;

[0058] The cleaned material enters the detection chamber 140 from the cleaned channel 121, and is detected by the metal detector 160 to see if there are still metal impurities in the material;

[0059] If it does not exist, the rotating disk 232 and the fan-shaped material guide plate 233 are driven to rotate by a corresponding angle by the rotating driving device 231, so that the fan-shaped material guide plate 233 blocks the pipe openings of the second material pipe 210 and the slag discharge pipe 220, and then the baffle valve 150 is opened to allow the material to enter the discharge bin 180 from the detection bin 140 and finally be discharged from the first material pipe 190;

[0060] If it exists, the rotating disk 232 and the fan-shaped material guide plate 233 are driven to rotate by a corresponding angle through the rotary drive device 231, so that the fan-shaped material guide plate 233 covers the pipe openings of the first material pipe 190 and the slag discharge pipe 220, and then the baffle valve 150 is opened to allow the material to enter the discharge bin 180 from the detection bin 140 and finally be discharged from the second material pipe 210;

[0061] After the material is discharged from the first material pipe 190 or the second material pipe 210, the rotary drive device 231 drives the rotating disk 232 and the fan-shaped material guide plate 233 to rotate to a corresponding angle, so that the fan-shaped material guide plate 233 covers the pipe openings of the first material pipe 190 and the second material pipe 210, and then the metal detector 160 is closed and the electromagnetic block 120 is powered off, and the fan 240 is started to generate airflow, so that the metal impurities on the inner wall of the impurity removal channel 121 are finally discharged through the detection bin 140, the discharge bin 180 and the slag discharge pipe 220 in sequence;

[0062] The process returns to the step of rotating the discharging assembly 133 for a preset time until all the materials in the feed hopper 131 enter the material guide cylinder 134 .

[0063] In this embodiment, when removing impurities from the material, the preset time for the rotating discharging assembly 133 to rotate is set, so that a certain amount of material passes through the material guide cylinder 134 and enters the impurity removal channel 121 of the electromagnetic block 120, and at the same time, the electromagnetic block 120 is energized to adsorb metal impurities in the material on the inner wall of the impurity removal channel 121. Then, the impurity-removed material enters the detection chamber 140 from the impurity removal channel 121 under the action of its own weight. At this time, the metal detector 160 can be used to detect whether there are still metal impurities in the material. If not, the rotating drive device 231 drives the rotating disk 232 and the fan-shaped material guide plate 233 to rotate a corresponding angle, so that the fan-shaped material guide plate 233 blocks the pipe openings of the second material pipe 210 and the slag discharge pipe 220, and then opens the baffle valve 150 to allow the material to enter the discharge bin 180 from the detection bin 140 and finally be discharged from the first material pipe 190, so as to facilitate the subsequent transfer of the impurity-free materials to the next station; if there is, similarly, the rotating disk 232 and the fan-shaped material guide plate 233 are driven to rotate a corresponding angle by the rotating drive device 231, so that the fan-shaped material guide plate 233 blocks the first material The baffle valve 150 is opened to allow the material to enter the discharge bin 180 from the inspection bin 140 and finally be discharged from the second material pipe 210, so that the material that does not meet the impurity removal standard can be added back into the feed hopper 131; but after the material is discharged from the first material pipe 190 or the second material pipe 210, the rotating disk 232 and the fan-shaped material guide plate 233 are driven by the rotary drive device 231 to rotate a corresponding angle, so that the fan-shaped material guide plate 233 covers the pipe openings of the first material pipe 190 and the second material pipe 210, and then the baffle valve 150 is closed. The metal detector 160 cuts off the power to the electromagnetic block 120 and starts the fan 240 to generate airflow to promote the discharge of metal impurities from the impurity removal channel 121, so that the metal impurities are discharged in sequence through the detection bin 140, the discharge bin 180 and the slag discharge pipe 220, so as to be collected and processed in a centralized manner. By repeating this process, the materials in the feed hopper 131 can be processed in batches. By adding a detection process to the impurity-removed materials, the materials can be processed differently according to the detection results, thereby ensuring that only materials that have achieved the impurity removal effect can enter the next process.

[0064] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An electromagnetic iron remover, characterized in that: It includes a support frame, an electromagnetic block is arranged on the top of the support frame, a de-impurity channel for passing materials is opened inside the electromagnetic block, a quantitative feeding mechanism connected with the de-impurity channel is arranged on the top of the electromagnetic block, a detection bin connected with the de-impurity channel is arranged at the bottom of the electromagnetic block, a baffle valve is arranged at the bottom of the detection bin, a metal detector is arranged in the detection bin, the metal detector is electrically connected with a controller, a discharge bin is connected at the bottom of the detection bin, a first material pipe, a second material pipe and a slag discharge pipe distributed in a ring array are simultaneously connected to the bottom of the discharge bin, the first material pipe is used for discharging materials that meet the de-impurity standards, the second material pipe is used for discharging materials that do not meet the de-impurity standards, the slag discharge pipe is used for discharging metal impurities, and a pipe mouth switching mechanism is also arranged at the bottom of the discharge bin, the pipe mouth switching mechanism is used to open only any one pipe mouth of the first material pipe, the second material pipe and the slag discharge pipe.

2. An electromagnetic iron remover as claimed in claim 1, characterized in that: The pipe mouth switching mechanism includes a rotating drive device electrically connected to the controller, the rotating drive device is arranged at the bottom of the discharge bin, the rotating drive device is connected to a rotating disk located at the bottom of the discharge bin through a rotating shaft, the rotating disk is connected to a fan-shaped material guide plate, and the fan-shaped material guide plate is used to cover any two pipe mouths of the first material pipe, the second material pipe and the slag discharge pipe.

3. An electromagnetic iron remover as claimed in claim 2, characterized in that: The fan-shaped material guide plate is arranged obliquely.

4. An electromagnetic iron remover as described in claims 1-3, characterized in that: The quantitative feeding mechanism comprises a feeding hopper, the bottom of which is connected to a feeding cylinder, a rotating discharging assembly is arranged in the feeding cylinder, the bottom of which is connected to a material guide cylinder, the material guide cylinder is connected to the top of the electromagnetic block and communicates with the impurity removal channel.

5. An electromagnetic iron remover as claimed in claim 4, characterized in that: The rotary discharging assembly includes a horizontally arranged rotating shaft, the rotating shaft is connected to a driving motor located on the outer wall of the feed barrel, the driving motor is electrically connected to the controller, and a plurality of stirring blades distributed in a circular array are connected to the rotating shaft along the axial direction of the rotating shaft, and the other ends of the stirring blades can be in contact with the inner wall of the feed barrel.

6. An electromagnetic iron remover as claimed in claim 4, characterized in that: The impurity removal channel is wavy.

7. An electromagnetic iron remover as claimed in claim 4, characterized in that: A support plate is arranged on the top of the electromagnetic block, a fan electrically connected to the controller is arranged on the support plate, the fan is connected to an air supply pipe, and the other end of the air supply pipe is connected to the side wall of the material guide barrel.

8. An electromagnetic iron remover as claimed in claim 4, characterized in that: The outer wall of the material guiding cylinder is provided with at least one vibrator.

9. An electromagnetic iron remover as claimed in claim 1, characterized in that: A cooling device is also provided on the top of the support frame, and the cooling device includes a cooling cylinder sleeved on the outer wall of the electromagnetic block, a cavity is provided inside the cooling cylinder, a temperature sensor electrically connected to the controller is provided in the cavity, and a first pipe and a second pipe connected to the cavity are respectively connected on both sides of the cooling cylinder, the first pipe is used to pass a cooling medium, and the second pipe is used to discharge the cooling medium.

10. A method for removing iron, characterized in that: An electromagnetic iron remover according to claim 7, comprising the following steps: Adding batches of materials into the feed hopper; The rotating discharging assembly is rotated for a preset time so that a certain amount of material passes through the material guide cylinder and enters the impurity removal channel of the electromagnetic block, and the electromagnetic block is energized at the same time; The metal impurities in the material are adsorbed on the inner wall of the impurity removal channel by the energized electromagnetic block; The material after impurity removal enters the detection chamber from the impurity removal channel, and the metal detector is used to detect whether there are still metal impurities in the material; If it does not exist, the rotating disk and the fan-shaped material guide plate are driven by the rotating driving device to rotate a corresponding angle, so that the fan-shaped material guide plate covers the pipe openings of the second material pipe and the slag discharge pipe, and then the baffle valve is opened to allow the material to enter the discharge bin from the detection bin and finally be discharged from the first material pipe; If it exists, the rotary drive device drives the rotating disk and the fan-shaped material guide plate to rotate a corresponding angle, so that the fan-shaped material guide plate blocks the pipe openings of the first material pipe and the slag discharge pipe, and then opens the baffle valve to allow the material to enter the discharge bin from the detection bin and finally be discharged from the second material pipe; After the material is discharged from the first material pipe or the second material pipe, the rotary drive device drives the rotating disk and the fan-shaped material guide plate to rotate a corresponding angle, so that the fan-shaped material guide plate covers the pipe openings of the first material pipe and the second material pipe, and then the metal detector is closed and the electromagnetic block is powered off, and the fan is started to generate airflow, so that the metal impurities on the inner wall of the impurity removal channel are discharged through the detection bin, the discharge bin and the slag discharge pipe in sequence; Return to the step of rotating the rotating discharging assembly for a preset time until all the materials in the feed hopper enter the material guide cylinder.

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