Magnetic substance separation device

Abstract

The utility model relates to a magnetic substance separating device, which comprises a box body, a material conveying pipeline and a material discharging pipeline, the material conveying pipeline and the material discharging pipeline are respectively communicated with the box body, the separating device further comprises a flow guide pipeline, a screen arranged in the flow guide pipeline and a magnetic force component, and the flow guide pipeline is arranged in an inner cavity of the box body and is respectively in butt joint with the material conveying pipeline and the material discharging pipeline from two end parts; the multiple screens are sequentially distributed in the extending direction of the flow guide pipeline, and the magnetic component is arranged in an inner cavity of the box body and can form a magnetic field covering the multiple screens. On one hand, the plurality of screens are arranged, so that the contact area between materials and the magnetic adsorption area is increased, the working period is effectively prolonged, and the separation efficiency is improved; and on the other hand, the multiple screens make contact with the materials one by one in the material conveying process, the probability that the screens successfully adsorb the magnetic foreign matter is greatly increased, and the separation effect is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of magnetic foreign matter separation and filtration, and in particular relates to a magnetic material separation device. Background Art

[0002] In the transmission of powder or slurry, it is usually necessary to use a separation device to screen out magnetic foreign matter in the powder or slurry.

[0003] At present, the existing separation devices generally adopt a box-type design, that is, they include a separation box and a magnetic bar arranged in the separation box, wherein the slurry or powder is introduced into the separation box through a pipeline, and the magnetic bar is energized to generate magnetism. When the slurry or powder passes through, the magnetic foreign matter in the slurry or powder is adsorbed to the surface of the magnetic bar to achieve separation, and finally the slurry or powder is discharged from the separation box.

[0004] However, in the actual production process, the existing separation device has the following defects:

[0005] 1. The surface area of ​​the magnetic bar is limited, and it is easy to be covered by magnetic foreign matter, slurry, and powder. The service life is short, which causes the staff to frequently stop the machine to clean the magnetic foreign matter on the surface of the magnetic bar. Otherwise, it will affect the adsorption effect of the magnetic bar on the magnetic foreign matter, the operation is cumbersome, and the separation efficiency is low;

[0006] 2. During a separation process, there is a probability that some magnetic foreign matter may not be successfully adsorbed by the magnetic rod, resulting in unsatisfactory separation effect. Summary of the invention

[0007] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an improved magnetic material separation device.

[0008] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0009] A magnetic material separation device comprises a box body, a feed pipe and a discharge pipe respectively connected to the box body, the separation device also comprises a guide pipe, a screen arranged inside the guide pipe, and a magnetic component, wherein the guide pipe is arranged in the inner cavity of the box body and is respectively connected to the feed pipe and the discharge pipe from both ends; there are multiple screens and they are distributed in sequence along the extension direction of the guide pipe, the magnetic component is arranged in the inner cavity of the box body and can form a magnetic field covering multiple screens, during separation, each screen is magnetized in the magnetic field, the material enters the guide pipe from the feed pipe and passes through multiple screens in sequence before being discharged from the discharge pipe, and the multiple screens gradually absorb magnetic foreign matter in the material.

[0010] Preferably, the material delivery pipeline and the material discharge pipeline are connected to the top and bottom of the box body respectively, and the diversion pipeline is vertically connected between the material delivery pipeline and the material discharge pipeline, and the material passes through the material delivery pipeline, the diversion pipeline, and the material discharge pipeline from top to bottom in sequence. Here, under the dead weight, it is more conducive to the transmission of materials and avoids accumulation and residue in the pipeline.

[0011] Preferably, the cross-sectional area of ​​the guide pipe is s 1, and the screening area formed by each screen is s 2, wherein 0.8s 1≤s 2≤0.9s 1. Here, the screening effect is optimal; at the same time, it is not only convenient to install the screen, but also during the working process, the gap between the screen and the inner wall of the guide pipe effectively reduces the stuck material.

[0012] Preferably, the magnetic component is a coil and is arranged around the guide pipe. When the coil is powered on, each screen is magnetized; when the coil is powered off, each screen loses its magnetism, and the magnetic foreign matter falls off and is discharged from the discharge pipe; and / or the center line of the magnetic component, the guide pipe and the center line of the screen coincide with each other. Here, after separation, the magnetic foreign matter can be automatically shed and collected through the discharge pipe by powering off, which is convenient to operate.

[0013] According to a specific implementation and preferred aspect of the utility model, the screen includes a main rod and a support rod arranged in an intersecting manner, wherein there are at least two main rods arranged side by side and spaced apart, and there are multiple support rods arranged side by side and spaced apart along the length direction of the main rod, and a strip flow channel is formed between each two adjacent support rods. Here, the contact surface between the material and the strip screen can be effectively expanded, especially for powder materials, and the probability of magnetic impurities being captured by the magnetic screen can be significantly increased; at the same time, the structure is simple, easy to install and use, easy to maintain and clean, and the use cost is low.

[0014] Preferably, the lengths of the supporting rods at both sides and the supporting rod at the middle are gradually increased; and / or, a slope is formed on the side of each supporting rod away from the main rod, and when separated, each supporting rod drives the material to flow through each flow channel from the slope, thereby facilitating the material to be evenly dispersed into each flow channel.

[0015] Specifically, in each screen, each support rod is arranged perpendicularly to the main rod; and / or, the main rods in each two adjacent screens are arranged perpendicularly to each other; and / or, in the orthographic projection in the length direction of the diversion pipe, the connecting line of each main rod and the end of the support rod in two adjacent screens forms a circle. Here, a circular screening area is formed, and the separation effect is best.

[0016] According to another specific implementation and preferred aspect of the utility model, the screen has multiple layers of annular flow channels distributed sequentially from the inside to the outside. Here, the number of layers of contact between the material and the screen is greater, and the contact area is larger, which is suitable for screening out magnetic foreign matter in slurry.

[0017] Preferably, the screen includes a screen body, and in the orthographic projection in the length direction of the diversion pipe, the screen body is a spiral line extending around the center line of the diversion pipe; and / or, the screen also includes a serrated mold strip extending along each layer of the flow channel, wherein the vertex and bottom point of the mold strip are respectively fixedly connected to the opposite side walls of the flow channel.

[0018] In addition, a connecting shaft extending along the length direction of the diversion pipe is inserted in the diversion pipe; a central hole matching the connecting shaft is formed in the middle of the screen, and a plurality of screens are sequentially sleeved on the connecting shaft from the central hole.

[0019] Due to the implementation of the above technical solution, the utility model has the following advantages compared with the prior art:

[0020] The prior art has the defect that due to the limited adsorption area of ​​the magnetic rod, the machine needs to be frequently shut down to clean the surface of the magnetic rod, otherwise the adsorption effect of the magnetic rod will be affected, and there is a high probability that some magnetic foreign matter will not be successfully adsorbed and separated during the separation, resulting in unsatisfactory separation effect. The present application designs the structure of the magnetic material separation device as a whole, and cleverly solves the shortcomings and defects of the prior art. After adopting the separation device, the magnetic component forms a magnetic field covering multiple screens in the diversion pipe, so that each screen is magnetized in the magnetic field, and then the material enters the diversion pipe through the feed pipe and passes through each screen in turn. Each screen gradually adsorbs and separates the magnetic foreign matter in the material, and finally the separated material is discharged through the discharge pipe. Therefore, compared with the prior art, the present invention increases the contact area between the material and the magnetic adsorption area by setting multiple screens, thereby effectively extending the working cycle and improving the separation efficiency; on the other hand, during material transmission, multiple screens are contacted with the material one by one, which greatly increases the probability of the screen successfully adsorbing magnetic foreign matter and effectively improves the separation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the magnetic material separation device of Example 1;

[0022] Figure 2 It is a half-section schematic diagram of the magnetic material separation device of Example 1;

[0023] Figure 3 It is an enlarged schematic diagram of the top view of the diversion pipe and the screen of Example 1;

[0024] Figure 4 for Figure 3 A magnified schematic diagram of the three-dimensional structure of the middle screen;

[0025] Figure 5 It is an enlarged schematic diagram of the top view of the diversion pipe and the screen of Example 2;

[0026] Figure 6 for Figure 5A magnified schematic diagram of the three-dimensional structure of the middle screen;

[0027] Among them: 1. Box body;

[0028] 2. Material delivery pipeline;

[0029] 3. Discharge pipe;

[0030] 4. diversion pipe; 40. connecting shaft; 400. diversion rod;

[0031] 5. Screen; k. Center hole; d. Flow channel; 50. Main rod; 51. Support rod; 52. Inner ring strip; 53. Outer ring strip; 54. Screen body; 55. Mold strip;

[0032] 6. Magnetic components. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0034] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0036] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it 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.

[0037] In the present application, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature may be that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. It should be noted that when an element is referred to as "fixed to" or "set on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0038] Example 1

[0039] like Figures 1 to 4 As shown, the magnetic material separation device of this embodiment includes a box body 1, a material delivery pipe 2 and a material discharge pipe 3 respectively connected to the box body 1, a guide pipe 4 arranged in the inner cavity of the box body 1, a screen 5 arranged inside the guide pipe 4, and a magnetic component 6.

[0040] Specifically, the feed pipe 2 and the discharge pipe 3 are connected to the top and bottom of the box 1 respectively, the guide pipe 4 extends vertically and is connected between the feed pipe 2 and the discharge pipe 3 from both ends, and the material passes through the feed pipe 2, the guide pipe 4, and the discharge pipe 3 from top to bottom. As for the specific structure of the feed pipe 2 and the discharge pipe 3, it is a conventional setting, selected according to the specific material characteristics, and will not be described here.

[0041] In this example, the diversion pipe 4 is a pipe with a circular cross section; there are multiple screens 5 and they are distributed in sequence along the extension direction of the diversion pipe 4. In some specific embodiments, the diversion pipe 4 is inserted with a connecting shaft 40 extending along its own length direction; each screen 5 forms a center hole k matching the connecting shaft 40 from the middle, and multiple screens 5 are sequentially sleeved on the connecting shaft 40 from the center hole k; the center line of each screen 5 is arranged to coincide with the center line of the diversion pipe 4. In some specific embodiments, the upper end of the connecting shaft 40 is provided with a diverter rod 400 extending horizontally in the radial direction, and there are multiple diverter rods 400 and they are spaced around the center line of the connecting shaft 40.

[0042] Specifically, the cross-sectional area of ​​the flow guide pipe 4 is s1, and the screening area formed by each screen 5 is s2, wherein 0.8s1≤s2≤0.9s1. Preferably, s2=0.85s1.

[0043] In this example, each screen 5 includes a main rod 50 and a support rod 51 that are arranged to intersect each other, wherein there are at least two main rods 50 that are arranged side by side and spaced apart, and there are multiple support rods 51 that are distributed side by side and spaced apart along the length direction of the main rod 50, and a strip flow channel d is formed between every two adjacent support rods 51.

[0044] Specifically, there are two main rods 50, and in each screen 5, each support rod 51 is arranged perpendicular to the main rod 50; the main rods 50 in each two adjacent screens 5 are arranged perpendicular to each other; in the orthographic projection of the diversion pipe 4 in the length direction, the connecting line of the ends of each main rod 50 and the support rod 51 in two adjacent screens 5 forms a circle.

[0045] For the convenience of implementation, in each screen 5, the lengths of the support rods 51 located at both sides to the support rod 51 located in the middle are gradually increased; at the same time, a slope is formed on the side of each support rod 51 away from the main rod 50 (i.e., the upper side of the support rod 51), and when separating, each support rod 51 drives the material to flow from the slope and pass through each flow channel d. In some specific embodiments, the multiple support rods 51 can be divided into two groups, and the multiple support rods 51 in the left and right groups are symmetrically arranged.

[0046] In this example, the magnetic component 6 is arranged in the inner cavity of the box body 1 and can form a magnetic field covering multiple screens 5. During separation, each screen 5 is magnetized in the magnetic field, and the material enters the diversion pipe 4 from the conveying pipe 1 and passes through multiple screens 5 in turn before being discharged from the discharge pipe 3, and the multiple screens 5 gradually absorb the magnetic foreign matter in the material.

[0047] Specifically, the magnetic component 6 is a coil and is arranged around the guide pipe 4. When the coil is energized, each screen 5 is magnetized; when the coil is de-energized, each screen 5 loses its magnetism, and the magnetic foreign matter falls off and is discharged from the discharge pipe 3; the center line of the magnetic component 6, the guide pipe 4 and the center line of the screen 5 are arranged to coincide with each other.

[0048] Example 2

[0049] Combination Figure 5 and Figure 6 As shown, the magnetic material separation device of this embodiment has a substantially same structure as that of Embodiment 1, except that:

[0050] The screen 5 of this embodiment has multiple layers of annular flow channels d distributed sequentially from the inside to the outside, and the multiple screens 5 are aligned vertically.

[0051] In some specific embodiments, the screen 5 includes an inner ring strip 52 formed with a center hole k, an outer ring strip 53, and a screen body 54 abutting between the inner ring strip 52 and the outer ring strip 53. In the orthographic projection in the length direction of the diversion pipe 4, the screen body 54 is a spiral line extending around the center line of the diversion pipe. During installation, the outer ring strip 53 fits the inner wall of the diversion pipe 4, and the inner ring strip 52 is sleeved on the connecting shaft 40.

[0052] Furthermore, the screen 5 further comprises a sawtooth-shaped moulding strip 55 extending along each layer of flow channel d, wherein the top point and the bottom point of the moulding strip 55 are respectively fixedly connected to the opposite side walls of the corresponding layer of flow channel d.

[0053] In summary, after adopting the separation device, the magnetic component forms a magnetic field covering multiple screens in the diversion pipe, so that each screen is magnetized in the magnetic field, and then the material enters the diversion pipe through the conveying pipe and passes through each screen in turn. Each screen gradually absorbs and separates the magnetic foreign matter in the material, and finally the separated material is discharged through the discharge pipe. Therefore, compared with the prior art, the utility model increases the contact area between the material and the magnetic adsorption area by setting multiple screens, thereby effectively extending the working cycle and improving the separation efficiency; on the other hand, during material transmission, multiple screens are contacted with the material one by one, which greatly increases the probability of the screen successfully adsorbing magnetic foreign matter and effectively improves the separation effect; thirdly, under its own weight, it is more conducive to the transmission of materials and avoids accumulation and residue in the pipe; fourthly, the layout of the diversion pipe and the screen area of ​​the present application is adopted, and the screen formed The removal effect is the best; at the same time, it is not only convenient for the installation of the screen, but also during the working process, the gap between the screen and the inner wall of the diversion pipe can effectively reduce the material jam; fifthly, after separation, the magnetic foreign matter can be automatically shed and collected through the discharge pipe by power failure, which is easy to operate; sixthly, it can effectively expand the contact surface between the material and the strip screen, especially the powder, and significantly increase the probability of magnetic impurities being captured by the magnetic screen; at the same time, it has a simple structure, easy installation and use, easy maintenance and cleaning, and low cost; seventhly, when using the strip screen, the inclined surface on each support rod is set to facilitate the uniform dispersion of the material into each flow channel, and at the same time form a circular screening area, and the separation effect is best; eighthly, when using a multi-layer annular screen, the number of layers of contact between the material and the screen is more, and the contact area is larger, which is suitable for screening out magnetic foreign matter in the slurry.

[0054] The above detailed description of the utility model is intended to enable people familiar with the technology in this field to understand the content of the utility model and implement it. It is not intended to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A magnetic material separation device, comprising a box, a material delivery pipeline and a material discharge pipeline respectively connected to the box, characterized in that: The separation device also includes a guide pipe, a screen arranged inside the guide pipe, and a magnetic component, wherein the guide pipe is arranged in the inner cavity of the box body and is connected to the conveying pipe and the discharge pipe at both ends respectively; there are multiple screens and they are distributed in sequence along the extension direction of the guide pipe, and the magnetic component is arranged in the inner cavity of the box body and can form a magnetic field covering multiple screens. During separation, each of the screens is magnetized in the magnetic field, and the material enters the guide pipe from the conveying pipe and passes through the multiple screens in sequence before being discharged from the discharge pipe, and the multiple screens gradually absorb magnetic foreign matter in the material.

2. The magnetic material separation device according to claim 1, characterized in that: The material conveying pipeline and the material discharging pipeline are respectively connected to the top and bottom of the box body, and the diversion pipeline is vertically connected between the material conveying pipeline and the material discharging pipeline. The material passes through the material conveying pipeline, the diversion pipeline and the material discharging pipeline in sequence from top to bottom.

3. The magnetic material separation device according to claim 1, characterized in that: The cross-sectional area of ​​the diversion pipe is s1, and the area of ​​the screening area formed by each of the screens is s2, wherein 0.8s1≤s2≤0.9s1.

4. The magnetic material separation device according to claim 1, characterized in that: The magnetic component adopts a coil and is arranged around the guide pipe. When the coil is energized, each of the screens is magnetized; when the coil is de-energized, each of the screens loses its magnetism, and the magnetic foreign matter falls off and is discharged from the discharge pipe; and / or the center line of the magnetic component, the guide pipe and the center line of the screen are arranged to coincide with each other.

5. The magnetic material separation device according to claim 1, characterized in that: The screen comprises main rods and support rods arranged in an intersecting manner, wherein there are at least two main rods arranged side by side and spaced apart, and there are multiple support rods arranged side by side and spaced apart along the length direction of the main rods, and a strip-shaped flow channel is formed between every two adjacent support rods.

6. The magnetic material separation device according to claim 5, characterized in that: The lengths of the support rods located at both sides and the support rod located in the middle are gradually increased; and / or, a slope is formed on the side of each support rod away from the main rod, and when separated, each support rod drives the material to flow from the slope and pass through each flow channel.

7. The magnetic material separation device according to claim 5, characterized in that: In each of the screens, each of the support rods is arranged perpendicularly to the main rod; and / or, the main rods in each two adjacent screens are arranged perpendicularly to each other; and / or, in the orthographic projection in the length direction of the diversion pipe, the connecting line of each of the main rods and the end of the support rods in two adjacent screens forms a circle.

8. The magnetic material separation device according to claim 1, characterized in that: The screen is provided with multiple layers of annular flow channels which are distributed sequentially from the inside to the outside.

9. The magnetic material separation device according to claim 8, characterized in that: The screen includes a screen body, and in the orthographic projection in the length direction of the diversion pipe, the screen body is a spiral line extending around the center line of the diversion pipe; and / or the screen also includes a serrated mold bar extending along each layer of the flow channel, wherein the vertex and the bottom point of the mold bar are respectively fixedly connected to the opposite side walls of the flow channel.

10. The magnetic substance separation device according to any one of claims 5 to 9, characterized in that: A connecting shaft extending along the length direction of the diversion pipe is inserted in the diversion pipe; a center hole matching the connecting shaft is formed in the middle of the screen, and a plurality of the screens are sequentially sleeved on the connecting shaft from the center hole.

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