Slurry demagnetizing device

Abstract

A slurry demagnetizing device belongs to the technical field of demagnetizing equipment and comprises a multi-stage demagnetizing mechanism, the multi-stage demagnetizing mechanism comprises a plurality of stages of U-shaped demagnetizing assemblies which are connected in series, each stage of U-shaped demagnetizing assembly is connected with a slurry conveying pipeline through a liquid inlet pipe, a first valve is arranged between each liquid inlet pipe and the slurry conveying pipeline, and a second valve is arranged between each liquid inlet pipe and the slurry conveying pipeline. A second valve is arranged between every two adjacent stages of U-shaped demagnetization assemblies, and the specified first stages of U-shaped demagnetization assemblies can be separated according to requirements so as to change the flowing path of slurry, so that the slurry does not pass through the first stages of U-shaped demagnetization assemblies meeting the adsorption capacity requirement of the multi-stage demagnetization mechanism any more, and the adsorption capacity of the slurry is improved. The U-shaped demagnetizing assemblies of the other stages of the demagnetizing device are further fully utilized, so that the demagnetizing efficiency of the demagnetizing device is obviously improved, the cleaning frequency of the device can be obviously reduced on the premise that the equipment cost is not obviously increased, the production efficiency is improved, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of demagnetization equipment, in particular to a slurry demagnetization device. Background Art

[0002] For certain specific application areas, it is necessary to control the content of magnetic substances in the slurry. Generally, a demagnetization process is added during the material preparation process or before packaging. The demagnetization process mainly uses two demagnetization methods: permanent magnet rod demagnetization or electric demagnetization. In order to reduce the cost of use, permanent magnet rod demagnetization is generally used.

[0003] In order to improve the ease of use and the adsorption and filtration effects, a multi-stage permanent magnet rod magnetic attraction device (publication number CN218423352U) has now appeared, which includes a cart assembly and an iron removal assembly. The iron removal assembly includes multiple groups of multi-stage U-shaped iron removal devices, and multiple multi-stage U-shaped iron removal devices are arranged in parallel. Each group of multi-stage U-shaped iron removal devices includes multiple U-shaped pipes in series, and multiple magnetic rods can be detachably connected to the corresponding multi-stage U-shaped iron removal devices, so that the iron filings and the magnetic rods are fully adsorbed, and the adsorption and filtration effects are better.

[0004] In the existing multi-stage permanent magnet rod magnetic attraction device, the multi-stage permanent magnet rods in the same group are arranged in series. After the multi-stage permanent magnet rods in the same group adsorb magnetic substances, their ability to adsorb magnetic substances will decrease. Although it is a multi-stage demagnetization device, the magnetic substances mainly rely on the adsorption of the first few stages. When the adsorption amount of magnetic substances in the first few stages is large, under the action of fluid flushing, the adsorbed magnetic substances will be desorbed and re-enter the slurry, affecting the demagnetization effect of the slurry. In order to ensure the demagnetization effect of the permanent magnet rods, the device needs to be cleaned after each batch of slurry demagnetization is completed, which increases the use cost and reduces production efficiency. Utility Model Content

[0005] In order to solve the technical problem that the existing multi-stage permanent magnet rod magnetic attraction device in the above-mentioned background technology mainly relies on the adsorption of the first few stages of the multi-stage permanent magnet rods connected in series, and when the adsorption amount of the magnetic material in the first few stages is large, the adsorbed magnetic material will be desorbed and re-enter the slurry, affecting the demagnetization effect of the slurry, the utility model provides a slurry demagnetization device.

[0006] The technical solution of this utility model is as follows:

[0007] The utility model provides a slurry demagnetization device, including a multi-stage demagnetization mechanism, which includes a plurality of U-shaped demagnetization components arranged in series, wherein the U-shaped demagnetization components of each stage are connected to the slurry conveying pipeline through a liquid inlet pipe, and a first valve is provided between all the liquid inlet pipes and the slurry conveying pipe, and a second valve is provided between two adjacent U-shaped demagnetization components, which can isolate the U-shaped demagnetization components of the first several stages as required to change the flow path of the slurry, so that the slurry no longer passes through the U-shaped demagnetization components of the first several stages of the multi-stage demagnetization mechanism that have reached the adsorption amount requirement, thereby making full use of the U-shaped demagnetization components of the other stages of the demagnetization device, so as to significantly improve the demagnetization efficiency of the demagnetization device, and significantly reduce the cleaning frequency of the device without significantly increasing the equipment cost, thereby improving production efficiency and reducing costs.

[0008] Preferably, the U-shaped demagnetization assembly of the first stage includes a first demagnetization pipe and a second demagnetization pipe arranged vertically, a magnetic rod is inserted in the first demagnetization pipe and the second demagnetization pipe respectively, the first demagnetization pipe is connected to the slurry conveying pipe through the first liquid inlet pipe, and the lower end of the first demagnetization pipe is connected to the lower end of the second demagnetization pipe of the same stage through a U-shaped connector to ensure sufficient flow path while reducing the occupation of horizontal space.

[0009] Preferably, the U-shaped connector includes two C-shaped connecting pipes, which are connected by a third valve to facilitate the control of the on-off of the two demagnetization pipes at the same level, and can further isolate the specific demagnetization pipe from the overall multi-stage demagnetization mechanism.

[0010] Preferably, a second liquid inlet pipe and a liquid delivery pipe are fixedly provided on the side wall of the second demagnetization pipe near its upper end. The second liquid inlet pipe is connected to the slurry delivery pipe, and the liquid delivery pipe is connected to the adjacent first-level U-shaped demagnetization component so that all U-shaped demagnetization components can be connected to the slurry delivery pipe while being connected in series.

[0011] Preferably, except for the U-shaped demagnetization assembly of the first stage, the U-shaped demagnetization assemblies of the remaining stages include two vertically arranged second demagnetization pipes, each second demagnetization pipe is inserted with a magnetic rod, the lower ends of the two second demagnetization pipes of the same stage are connected by a U-shaped connector, and the two second demagnetization pipes of two adjacent stages are connected by an infusion pipe, and a second valve is provided between the two infusion pipes to facilitate the on-off control of the U-shaped demagnetization assemblies of the two adjacent stages.

[0012] Preferably, one of the two second demagnetization pipes in the last-stage U-shaped demagnetization assembly is connected to a second demagnetization pipe adjacent to the previous stage, and the other is connected to the terminal container, so as to facilitate the storage of the demagnetized slurry.

[0013] Preferably, several stages of U-shaped demagnetization components arranged in series are arranged in a U shape, and the slurry conveying pipe is U-shaped to extend the flow path in a fixed space.

[0014] Preferably, several stages of U-shaped demagnetization components arranged in series are arranged in a continuous S-shape, and the slurry conveying pipe is in a continuous S-shape to extend the flow path in a fixed space.

[0015] Preferably, the multi-stage demagnetization mechanism is fixedly mounted on the trolley to facilitate the overall movement of the demagnetization device.

[0016] Preferably, a magnetic detection unit is installed on each level of the U-shaped demagnetization component, which can monitor the magnetic attraction capacity of the magnetic rods at each level to ensure the accuracy of valve closing.

[0017] It can be seen from the above technical solutions that the advantages of the present invention are:

[0018] 1. A first valve is provided between all liquid inlet pipes and slurry conveying pipes, and a second valve is provided between two adjacent U-shaped demagnetization components. The first several designated U-shaped demagnetization components can be isolated according to demand to change the flow path of the slurry so that the slurry no longer passes through the first several U-shaped demagnetization components that have reached the adsorption capacity requirement of the multi-stage demagnetization mechanism, thereby making full use of the other U-shaped demagnetization components of the demagnetization device to significantly improve the demagnetization efficiency of the demagnetization device. Without significantly increasing the equipment cost, the cleaning frequency of the device can be significantly reduced, the production efficiency can be improved, and the cost can be reduced.

[0019] 2. The lower ends of the two demagnetization pipes at the same level are connected by a U-shaped connector, and the U-shaped connector contains a third valve, which is convenient for controlling the on-off of the two demagnetization pipes at the same level, and can further isolate the specific demagnetization pipe from the overall multi-stage demagnetization mechanism.

[0020] 3. A magnetic detection unit is installed on each level of the U-shaped demagnetization component, which can monitor the magnetic attraction of the magnetic rods at each level to ensure the accuracy of valve closing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 Schematic diagram of the overall structure of a slurry demagnetization device according to one or more embodiments of the present invention (the bracket and magnetic detection unit are not shown);

[0023] Figure 2 This is a schematic structural diagram of a multi-stage demagnetization mechanism according to one or more embodiments of the present invention;

[0024] The components represented by the reference numerals in the figure are:

[0025] 1. Trolley; 2. First demagnetization pipeline; 3. Second demagnetization pipeline; 4. Magnetic rod; 5. First liquid inlet pipe; 6. Second liquid inlet pipe; 7. Liquid delivery pipe; 8. Connecting pipe; 9. Slurry delivery pipe; 10. First valve; 11. Second valve; 12. Third valve. DETAILED DESCRIPTION

[0026] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the specific embodiments. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this patent.

[0027] Example 1

[0028] In a typical embodiment of the present invention, Figure 1-Figure 2 As shown, a slurry demagnetization device is proposed, including: a trolley 1 and a multi-stage demagnetization mechanism. The trolley 1 is a flatbed cart structure. A bracket is fixed on the flatbed of the trolley 1. The multi-stage demagnetization mechanism is detachably mounted on the bracket through a pipe buckle.

[0029] The multi-stage demagnetization mechanism includes several stages of U-shaped demagnetization components arranged in series. The U-shaped demagnetization components of each stage are connected to the slurry conveying pipeline 9 through a liquid inlet pipe. A first valve 10 is provided between the U-shaped demagnetization components of each stage and the slurry conveying pipeline, and a second valve 11 is provided between the two adjacent U-shaped demagnetization components. The U-shaped demagnetization components of the previous stages can be isolated according to needs to change the flow path of the slurry and ensure the demagnetization effect.

[0030] Specifically, several levels of U-shaped demagnetization components arranged in series are arranged in a U shape, and each level of U-shaped demagnetization component includes two vertically arranged demagnetization pipes, and a magnetic rod 4 is vertically inserted in each demagnetization pipe. The magnetic rod 4 is coaxially arranged with the corresponding demagnetization pipe, and a cover plate is detachably installed on the upper end of the demagnetization pipe. The upper end of the magnetic rod 4 passes through the cover plate and extends outward.

[0031] The first-stage U-shaped demagnetization component includes a first demagnetization pipe 2 and a second demagnetization pipe 3. The first demagnetization pipe 2 and the second demagnetization pipe 3 are both open at the upper and lower ends. A magnetic rod 4 is respectively inserted in the first demagnetization pipe 2 and the second demagnetization pipe 3, and a cover plate is installed on the upper end. A first liquid inlet pipe 5 is fixedly provided on the side wall of the first demagnetization pipe 2 near its upper end. The lower end of the first demagnetization pipe 2 is connected to the lower end of the second demagnetization pipe 3 of the first-stage U-shaped demagnetization component through a U-shaped connector.

[0032] Among them, the U-shaped connecting piece includes two C-shaped connecting pipes 8 and a third valve 12. The lower ends of the first demagnetization pipe 2 and the second demagnetization pipe 3 at the same level are respectively detachably connected to a connecting pipe 8 through a flange. The two connecting pipes 8 are connected by the third valve 12, thereby realizing the connection between the lower end of the first demagnetization pipe 2 and the lower end of the second demagnetization pipe 3, and the third valve 12 is used to control the on-off between the two.

[0033] The first liquid inlet pipe 5 of the first demagnetization pipe 2 is connected to the slurry conveying pipe 9 through the first valve 10. The slurry in the slurry conveying pipe 9 can enter the first demagnetization pipe 2 through the first liquid inlet pipe 5, be demagnetized by the magnetic rod 4 in the first demagnetization pipe 2, and then enter the adjacent second demagnetization pipe 3 from the U-shaped connector at the lower end of the first demagnetization pipe 2 for further demagnetization.

[0034] A second liquid inlet pipe 6 and a liquid delivery pipe 7 are fixedly provided on the side wall of the second demagnetization pipe 3 near its upper end. The second liquid inlet pipe 6 and the liquid delivery pipe 7 are provided with an angle in the horizontal direction. The second liquid inlet pipe 6 is also connected to the slurry delivery pipe 9 through the first valve 10. The liquid delivery pipe 7 is used to connect to the demagnetization pipe of the adjacent first-level U-shaped demagnetization component.

[0035] Specifically, except for the U-shaped demagnetization component of the first stage, the two demagnetization pipes of the U-shaped demagnetization components of the remaining stages are second demagnetization pipes 3, that is, the U-shaped demagnetization components of the remaining stages include two vertically arranged second demagnetization pipes 3, each second demagnetization pipe 3 is inserted with a magnetic rod 4, the lower ends of the two second demagnetization pipes 3 of the same stage are connected by a U-shaped connector, and the two second demagnetization pipes 3 between two adjacent stages are connected by two adjacent infusion pipes 7. A second valve 11 is provided between the two infusion pipes 7 for controlling the on-off between the two second demagnetization pipes 3 between two adjacent stages.

[0036] There are two second demagnetization pipes 3 in the U-shaped demagnetization assembly of the last stage, one of which is used to connect with a second demagnetization pipe 3 adjacent to the previous stage, and the infusion pipe 7 on the other second demagnetization pipe 3 is used to connect with the terminal container to discharge the demagnetized slurry into the terminal container.

[0037] Since the first demagnetization pipeline 2 and all the second demagnetization pipelines 3 are connected to the slurry conveying pipe 9 and are provided with a first valve 10, and a third valve 12 is provided between the lower ends of the two demagnetization pipelines at the same level, and the infusion pipes 7 of the two second demagnetization pipelines 3 between two adjacent levels are connected through the second valve 11, when the magnetic material adsorption amount of the first few levels of magnetic rods 4 is large, resulting in a reduction in its adsorption capacity, the demagnetization pipelines of the first few levels can be isolated as needed to change the direction of the slurry, so that the slurry no longer passes through the first few levels of U-shaped demagnetization components that have reached the adsorption amount requirements of the multi-stage demagnetization mechanism, and then fully utilizes the other levels of magnetic rods 4 of the demagnetization device to significantly improve the demagnetization efficiency of the demagnetization device. Without significantly increasing the equipment cost, the cleaning frequency of the device can be significantly reduced, the production efficiency can be improved, and the cost can be reduced.

[0038] The slurry conveying pipe 9 is U-shaped, and the multi-stage demagnetization mechanism is entirely arranged in the space enclosed by the slurry conveying pipe 9. The slurry conveying pipe 9 is also installed on the bracket.

[0039] In order to monitor the magnetic attraction capacity of each level of magnetic rods 4, a magnetic detection unit is installed on the U-shaped demagnetization component of each level. Specifically, a magnetic detection unit is installed on the first demagnetization pipe 2 and each second demagnetization pipe 3, wherein the magnetic detection unit can be a magnetic sensor or a magnetometer, a gauss meter, etc. When it is a magnetic sensor, the magnetic sensor is arranged at intervals on the circumference of the corresponding magnetic rod 4 and fixed on the corresponding demagnetization pipe. Since magnetic detection is an existing technology, no further details will be given here.

[0040] In order to improve automation, a PLC control unit can be set up, and the first valve 10, the second valve 11 and the third valve 12 can all be set as solenoid valves, and the magnetic detection unit, the first valve 10, the second valve 11 and the third valve 12 can all be connected to the control unit, so that the control unit controls the opening / closing of the corresponding valves according to the monitored magnetic characteristics, so as to automatically isolate the demagnetization pipelines of the first few levels and change the direction of the slurry.

[0041] Example 2

[0042] In another typical embodiment of the present invention, a slurry demagnetization device is proposed, which is different from the slurry demagnetization device in Example 1 in that: several stages of U-shaped demagnetization components arranged in series are arranged in a continuous S shape, and at the same time, the slurry conveying pipe 9 is also adaptively arranged in a continuous S shape.

[0043] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A slurry demagnetization device, comprising: The multi-stage demagnetization mechanism is characterized in that the multi-stage demagnetization mechanism includes a plurality of U-shaped demagnetization components arranged in series, each U-shaped demagnetization component is connected to a slurry conveying pipe (9) through a liquid inlet pipe, and a first valve (10) is provided between all the liquid inlet pipes and the slurry conveying pipe (9), and a second valve (11) is provided between two adjacent U-shaped demagnetization components.

2. The slurry demagnetization device according to claim 1, characterized in that: The first-stage U-shaped demagnetization component comprises a first demagnetization pipe (2) and a second demagnetization pipe (3) arranged vertically, wherein a magnetic rod (4) is inserted into each of the first demagnetization pipe (2) and the second demagnetization pipe (3), the first demagnetization pipe (2) is connected to a slurry conveying pipe (9) via a first liquid inlet pipe (5), and the lower end of the first demagnetization pipe (2) is connected to the lower end of the second demagnetization pipe (3) of the same stage via a U-shaped connector.

3. The slurry demagnetization device according to claim 2, characterized in that: The U-shaped connecting piece comprises two C-shaped connecting pipes (8), and the two connecting pipes (8) are connected via a third valve (12).

4. The slurry demagnetization device according to claim 2, characterized in that: A second liquid inlet pipe (6) and a liquid delivery pipe (7) are fixedly provided on the side wall of the second demagnetization pipe (3) near its upper end. The second liquid inlet pipe (6) is connected to the slurry delivery pipe (9), and the liquid delivery pipe (7) is connected to the adjacent first-level U-shaped demagnetization component.

5. The slurry demagnetization device according to claim 4, characterized in that: Except for the first-stage U-shaped demagnetization assembly, the remaining stages' U-shaped demagnetization assemblies all include two vertically arranged second demagnetization pipes (3), each second demagnetization pipe (3) is inserted with a magnetic rod (4), the lower ends of the two second demagnetization pipes (3) of the same stage are connected by a U-shaped connector, and the two second demagnetization pipes (3) of two adjacent stages are connected by a liquid infusion pipe (7), and a second valve (11) is provided between the two liquid infusion pipes (7).

6. The slurry demagnetization device according to claim 5, characterized in that: One of the two second demagnetization pipes (3) in the last-stage U-shaped demagnetization assembly is connected to a second demagnetization pipe (3) adjacent to the previous stage, and the other is connected to the terminal container.

7. The slurry demagnetization device according to claim 1, characterized in that: Several stages of U-shaped demagnetization components are arranged in series in a U-shape, and the slurry conveying pipe (9) is U-shaped.

8. The slurry demagnetization device according to claim 1, characterized in that: Several stages of U-shaped demagnetization components are arranged in series in a continuous S-shape, and the slurry conveying pipe (9) is in a continuous S-shape.

9. The slurry demagnetization device according to claim 1, characterized in that: The multi-stage demagnetization mechanism is fixedly mounted on the trolley (1).

10. The slurry demagnetization device according to claim 1, characterized in that: A magnetic detection unit is installed on the U-shaped demagnetization component of each stage.

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