Electromagnetic iron removal device for granular carbon black

Abstract

The invention relates to a granular carbon black electromagnetic deironing device which comprises an electromagnetic cylinder and a demagnetizing assembly, the demagnetizing assembly comprises an electrified coil, an electromagnet assembly and an electromagnet driving assembly, the electromagnet assembly is a pair of conical electromagnets which are oppositely arranged up and down, and a first driving magnet is arranged on the bottom surface of the electromagnet assembly; the electromagnet driving assembly comprises a pair of driving motors which are coaxially arranged with the two conical electromagnets correspondingly, guiding discs are arranged at the tail ends of rotating shafts of the driving motors, second driving magnets are arranged at the positions, corresponding to the first driving magnets, of the guiding discs, and the first driving magnets and the second driving magnets attract each other. The driving motors drive the conical electromagnets to rotate in a non-contact mode under the action of magnetic force, and the rotating directions of the driving motors in the same group are opposite. According to the device, a closed iron removal environment can be provided, the risks of environmental pollution, hand clamping of operators and occupational diseases can be reduced, ferromagnetic impurities attached to the electromagnet can be effectively removed, the magnetic cleaning efficiency of the electromagnet is maintained, and the service life of the device is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of carbon black iron removal, in particular to a granular carbon black electromagnetic iron removal device. BACKGROUND

[0002] In the production process of carbon black, in order to eliminate the ferromagnetic impurities such as iron oxide in the carbon black product, the ferromagnetic impurities need to be removed by automatic magnetic cleaning before the carbon black product enters the finished product tank, so as to ensure the quality of the carbon black. The existing automatic magnetic cleaning method usually uses a magnetic bar or an electromagnet to adsorb the magnetic impurities. The automatic magnetic bar magnetic cleaning utilizes a gas cylinder to control the extension and retraction of the magnetic bar. If the gas cylinder is aged or the gas source pressure is unstable, the magnetic bar is easy to break due to uneven force. Moreover, the magnetic bars are placed side by side, and the magnetic force is high. During cleaning and replacement, the magnetic bars are easy to be adsorbed together, thereby increasing the risk of hand clamping of the operator. In addition, during the magnetic cleaning process, due to the characteristics of the carbon black material, part of the carbon black material is easy to adhere to the magnetic bar. When the magnetic bar is extended and retracted, the material is easy to leak and is accompanied by the leakage of powdery carbon black powder, which causes environmental pollution during the removal of impurities. Long-term inhalation and contact will increase the risk of silicosis and pneumoconiosis of the operator. In addition, the magnetic field strength of the magnetic bar will gradually decrease over time, especially at a high temperature of 200-300 DEG C, the demagnetization speed is accelerated. Generally, the service life of the magnetic bar is 3-6 months, and the operation cost is high. The electromagnet magnetic cleaning utilizes the energized coil to control whether the electromagnet has magnetism. When the coil is energized, the electromagnet has magnetism and adsorbs the magnetic impurities. When the coil is de-energized, the electromagnet loses magnetism and discharges the ferromagnetic impurities. Moreover, the ferromagnetic impurities are easy to adhere to the electromagnet due to the characteristics of the carbon black material. After de-energization, the ferromagnetic impurities cannot completely separate from the electromagnet, and are easy to accumulate on the surface of the electromagnet over time, thereby reducing the adsorption effect of the electromagnet. SUMMARY

[0003] The purpose of the present application is to provide a granular carbon black electromagnetic iron removal device. By increasing the magnetic field strength to 20-30 thousand Gauss, the magnetic cleaning effect is improved, the purity of the carbon black product is improved, the closed iron removal environment is provided to reduce the risk of environmental pollution, hand clamping of the operator and occupational diseases, the ferromagnetic impurities attached to the electromagnet are effectively removed, the magnetic cleaning efficiency of the electromagnet is maintained, and the service life of the device is prolonged.

[0004] The technical scheme adopted by the present application is: a granular carbon black electromagnetic iron removal device, comprising an electromagnetic cylinder and a magnetic cleaning assembly, the top of the electromagnetic cylinder is provided with a feeding port and a feeding valve, the side of the feeding port is provided with a bypass valve, the bottom of the electromagnetic cylinder is provided with a slag discharge pipe and a slag discharge valve, the side wall of the slag discharge pipe is provided with a discharge valve at the front end of the slag discharge valve, and the discharge valve is connected to a discharge pipe; the magnetic cleaning assembly comprises an energized coil, an electromagnet assembly and an electromagnet driving assembly, the energized coil is sleeved outside the electromagnetic cylinder, the electromagnet assembly is a pair of oppositely arranged conical electromagnets, the shaft of the conical electromagnet is provided with a rotating shaft, the two ends of the rotating shaft are arranged on the inner wall of the electromagnetic cylinder, and the bottom surface of the conical electromagnet is provided with a first driving magnet; the number of the electromagnet driving assembly is consistent with the number of the electromagnet assembly, the electromagnet driving assembly comprises a pair of driving motors, the driving motors are arranged outside the electromagnetic cylinder and are coaxially arranged with the two conical electromagnets respectively, the end of the rotating shaft of the driving motor is provided with a guide disc, the position corresponding to the first driving magnet on the guide disc is provided with a second driving magnet, the first driving magnet and the second driving magnet attract each other, and under the action of the magnetic force, the driving motor drives the conical electromagnet to rotate without contact, and the rotating directions of the driving motors in the same group are opposite.

[0005] Further, when the number of the electromagnet assembly is more than two, the electromagnet assembly is arranged in an up-down parallel and staggered manner or in an up-down staggered manner.

[0006] Further, a timer is further included, the timer is electrically connected with the driving motor, the timer is used for controlling the forward and reverse rotation time length of the driving motor, and the driving motor is reversed when the timer ends.

[0007] Further, the discharge pipe is connected to a carbon black distribution pipe, the carbon black distribution pipe has at least two distribution branches, and a plug valve is arranged on each distribution branch.

[0008] The present application has the following advantages: (1) The present application removes ferromagnetic impurities such as iron oxide in carbon black products by using electromagnets, and the carbon black products are always in a sealed state during the magnetic cleaning process, which can effectively reduce environmental pollution and the risk of occupational diseases for operators; (2) The present application realizes the rotation of the driving motor without contact with the conical electromagnet through the magnetic force of the first driving magnet and the second driving magnet, which can not only maintain the sealing property of the electromagnetic cylinder, but also enable the ferromagnetic impurities attached to the conical electromagnet to rub against each other during the rotation process, so that the ferromagnetic impurities can quickly fall off from the conical electromagnet, avoiding the accumulation of ferromagnetic impurities on the surface of the conical electromagnet and reducing the adsorption effect of the conical electromagnet; (3) In the present application, the electromagnet assembly is arranged in an up-down parallel and staggered manner or in an up-down staggered manner, and the driving motor is controlled to reverse rotation by the timer, which can effectively reduce the magnetic cleaning dead angle, improve the magnetic cleaning efficiency, prolong the service life of the device and reduce the maintenance cost. (4) the magnetic field strength of the conical electromagnet in the application can reach 20-30 thousand Gauss, which is 2-3 times of the magnetic field strength of the magnetic bar in the prior art, and the magnetic field strength of the electromagnet will not decrease with time, effectively improving the cleaning amount of ferromagnetic impurities and improving the purity of carbon black products. BRIEF DESCRIPTION OF DRAWINGS

[0009] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed to be used in the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0010] Figure 1 is a structural schematic diagram of the embodiment of the application; Figure 2 is a structural schematic diagram of the electromagnet assembly and the electromagnet driving assembly in the embodiment of the application; Figure 3 is a side view of the electromagnet assembly arranged in an up-down parallel and staggered manner in the embodiment of the application; Figure 4 is a side view of the electromagnet assembly arranged in an up-down staggered manner in the embodiment of the application.

[0011] Explanation of reference signs: 1-electromagnetic cylinder, 2-feeding port, 3-feeding valve, 4-bypass valve, 5-discharge pipe, 6-discharge valve, 7-discharge valve, 8-power coil, 9-conical electromagnet, 10-rotating shaft, 11-first driving magnet, 12-driving motor, 13-guide disc, 14-second driving magnet, 15-timer, 16-carbon black distribution pipe, 17-plug valve, 18-discharge pipe. DETAILED DESCRIPTION

[0012] In order to more clearly illustrate the above-mentioned purposes, features and advantages of the application, the application will be further described in detail below in combination with the drawings and specific embodiments. In the following description, a lot of specific details are set forth in order to fully understand the application, but the application can also be implemented in other ways different from those described herein, therefore, the application is not limited to the specific embodiments disclosed below.

[0013] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art described herein. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an” or “a” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “connected” or “linked” and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms “upper,” “lower,” “left,” “right,” etc., are used only to indicate relative positional relationships, which change accordingly when the absolute position of the described object changes.

[0014] like Figures 1-2 As shown, an electromagnetic iron removal device for granular carbon black includes an electromagnetic cylinder 1 and a magnetic cleaning assembly. The electromagnetic cylinder 1 is a non-magnetic cylinder with a feed inlet 2 and a feed valve 3 at the top. A bypass valve 4 is located on the side of the feed inlet 2. When the electromagnetic cylinder 1 is working normally, the feed valve 3 is open and the bypass valve 4 is closed. When the electromagnetic cylinder 1 is discharging slag or undergoing maintenance, the feed valve 3 is closed and the bypass valve 4 is open. A slag discharge pipe 18 and a slag discharge valve 7 are located at the bottom of the electromagnetic cylinder 1. A discharge valve 6 is located on the side wall of the slag discharge pipe 18 at the front end of the discharge valve 7, and the discharge valve 6 is connected to the discharge pipe 5. When the electromagnetic cylinder 1 is working normally, the discharge valve 6 is open and the discharge valve 7 is closed. When the electromagnetic cylinder 1 is discharging slag or undergoing maintenance, the discharge valve 6 is closed and the discharge valve 7 is open.

[0015] The magnetic clearing assembly includes an energized coil 8, an electromagnet assembly, and an electromagnet drive assembly. The energized coil 8 is sleeved on the outside of the electromagnetic cylinder 1. The electromagnet assembly consists of a pair of vertically opposed conical electromagnets 9, with a gap between them to allow ferromagnetic impurities attached to the conical electromagnets 9 to come into contact with each other when the conical electromagnets 9 rotate. A rotating shaft 10 is provided at the center of the conical electromagnet 9, with both ends of the rotating shaft 10 located on the inner wall of the electromagnetic cylinder 1. A first drive magnet 11 is provided on the bottom surface of the conical electromagnet 9.

[0016] The number of electromagnet drive components is the same as the number of electromagnet components. Each electromagnet drive component includes a pair of drive motors 12. The drive motors 12 are located outside the electromagnetic cylinder 1 and are coaxially arranged with the two conical electromagnets 9 respectively. A guide disk 13 is provided at the end of the rotating shaft 10 of the drive motor 12. A second drive magnet 14 is provided on the guide disk 13 at the position corresponding to the first drive magnet 11. The first drive magnet 11 and the second drive magnet 14 attract each other. Under the action of magnetic force, the drive motor 12 drives the conical electromagnets 9 to rotate without contact. The rotation directions of the drive motors 12 in the same group are opposite.

[0017] In this embodiment of the invention, when the number of electromagnet assemblies is two or more, the electromagnet assemblies adopt the following... Figure 3 The method shown is parallel and staggered, or adopts, as shown in the example Figure 4 The layout is shown as an alternating vertical arrangement. (Through...) Figure 3 or Figure 4 This configuration allows the electromagnet assembly to fully contact the carbon black product during the cleaning process, effectively reducing cleaning dead zones and improving cleaning efficiency.

[0018] To prevent ferromagnetic impurities from accumulating on one side of the conical electromagnet 9 and causing the drive motor 12 to stall when it rotates in the same direction for an extended period, this embodiment of the invention also includes a timer 15. The timer 15 is electrically connected to the drive motor 12 and controls the duration of forward and reverse rotation of the drive motor 12, stopping the commutation at set times. By switching the motor's rotation direction, stalling and subsequent malfunctions are avoided, and ferromagnetic impurities on the conical electromagnet 9 can be cleaned more effectively, thereby extending the device's lifespan and reducing maintenance costs.

[0019] The discharge pipe 5 is connected to the carbon black distribution pipe 16. The carbon black distribution pipe 16 has at least two distribution branches, and each distribution branch is equipped with a gate valve 17. The carbon black distribution pipe 16 can realize the separate storage of different carbon black varieties.

[0020] The working principle of this invention is as follows: The drive motor 12 is mounted on a bracket outside the electromagnetic cylinder 1 (not shown in the attached diagram), and its position is adjusted so that it is coaxially aligned with the two conical electromagnets 9. The drive motor 12 is electrically connected to the timer 15, which can be mounted on the bracket or in the workshop control room.

[0021] During the cleaning process, the feed valve 3 and discharge valve 6 are opened, while the bypass valve 4 and slag discharge valve 7 are closed. The energizing coil 8 is energized, and the conical electromagnet 9 generates magnetism. The carbon black product enters the electromagnetic cylinder 1 through the feed port 2. Ferromagnetic impurities mixed in the carbon black product are adsorbed by the conical electromagnet 9, thus filtering out the ferromagnetic impurities in the carbon black product. The cleaned carbon black product enters the carbon black distribution pipe 16 through the discharge pipe 5. The activated distribution branch is adjusted by the slide valve 17, and the carbon black product is sent to the designated finished product tank.

[0022] When the slagging or maintenance operation is needed, the feed valve 3 and the discharge valve 6 are closed, the bypass valve 4 and the slagging valve 7 are opened. The energized coil 8 is de-energized, then the conical electromagnet 9 loses magnetism, part of the ferromagnetic impurities falls off from the surface of the conical electromagnet 9 and is discharged through the slagging valve 7, and part of the ferromagnetic impurities is adhered to the surface of the conical electromagnet 9. The carbon black product enters other electromagnetic cylinders 1 through the bypass valve 4, so that production can not be stopped at the same time of slagging or maintenance. When slagging, the driving motor 12 is started, the driving motor 12 drives the eccentrically arranged second driving magnet 14 on the guide disc 13 to rotate, under the magnetic force of the first driving magnet 11 and the second driving magnet 14, the conical electromagnet 9 rotates, so that the driving motor 12 drives the conical electromagnet 9 to rotate without contact. The driving motor 12 rotates in the opposite direction, and the ferromagnetic impurities adhered to the surface of the conical electromagnet 9 rub against each other and fall off from the conical electromagnet 9 during the rotation process, and are discharged from the slagging pipe 18. When the driving motor 12 is started, the timer 15 starts timing, and when the timing is over, the driving motor 12 changes the rotation direction and starts timing again. By constantly switching the rotation direction of the driving motor 12, the ferromagnetic impurities can be effectively prevented from accumulating on one side of the conical electromagnet 9 to cause the driving motor 12 to be blocked, so that the magnetic cleaning dead angle is reduced, the magnetic cleaning efficiency is improved, the service life of the device is prolonged, and the maintenance cost is reduced.

[0023] The embodiment of the present application drives the conical electromagnet 9 to rotate in a non-contact driving mode, which can not damage the sealing of the electromagnetic cylinder 1, and can make the ferromagnetic impurities adhered to the conical electromagnet 9 rub against each other during the rotation process, so that the ferromagnetic impurities can quickly fall off from the conical electromagnet 9, and the ferromagnetic impurities can be prevented from accumulating on the surface of the conical electromagnet 9, and the adsorption effect of the conical electromagnet 9 is reduced.

[0024] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A granular carbon black electromagnetic iron removal device, characterized by comprising: The application relates to a carbon black production device, which comprises an electromagnetic cylinder and a magnetic cleaning assembly, wherein a feeding port and a feeding valve are arranged at the top of the electromagnetic cylinder, a bypass valve is arranged on the side of the feeding port, a slag discharge pipe and a slag discharge valve are arranged at the bottom of the electromagnetic cylinder, a discharge valve is arranged on the side wall of the slag discharge pipe and in front of the slag discharge valve, and the discharge valve is connected with a discharge pipe; the magnetic cleaning assembly comprises an energized coil, an electromagnet assembly and an electromagnet driving assembly; the energized coil is sleeved outside the electromagnetic cylinder; the electromagnet assembly is a pair of oppositely arranged conical electromagnets; an axis of the conical electromagnet is provided with a rotating shaft, the two ends of the rotating shaft are arranged on the inner wall of the electromagnetic cylinder, and a first driving magnet is arranged on the bottom surface of the conical electromagnet; the number of the electromagnet driving assembly is consistent with the number of the electromagnet assembly; the electromagnet driving assembly comprises a pair of driving motors; the driving motors are arranged outside the electromagnetic cylinder and coaxially arranged with the two conical electromagnets respectively; the end of the rotating shaft of the driving motor is provided with a guide disc; a second driving magnet is arranged on the guide disc at a position corresponding to the first driving magnet; the first driving magnet and the second driving magnet attract each other; the driving motor drives the conical electromagnet to rotate without contact under the action of the magnetic force; and the rotating directions of the driving motors in the same group are opposite.

2. The granular carbon black electromagnetic iron removal device according to claim 1, characterized in that, When the number of the electromagnet assembly is more than two, the electromagnet assembly is arranged in an up-down parallel staggered mode or an up-down staggered mode.

3. The granular carbon black electromagnetic iron removal device according to claim 2, characterized in that, The device further comprises a timer which is electrically connected with the driving motor; the timer is used for controlling the forward and reverse rotation time length of the driving motor; and the driving motor is reversely rotated when the time is up.

4. The granular carbon black electromagnetic iron removal device according to claim 1, characterized in that, The discharge pipe is connected with a carbon black distribution pipe; the carbon black distribution pipe has at least two distribution branches; and a plug valve is arranged on each distribution branch.

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