A magnetic impurity removal device for heavy calcium powder production

Abstract

The application discloses a magnetic separation impurity removing equipment for heavy calcium powder production and belongs to the technical field of magnetic separators. The technical scheme is characterized by comprising a magnetic separator body, wherein the magnetic separator body comprises a magnetic separation cavity for magnetically separating iron powder, a magnetic roller installed in the magnetic separation cavity, the magnetic roller being driven by a motor, the magnetic roller comprising an outer roller body, an inner roller body and permanent magnets, the permanent magnets being movably installed on the inner roller body, the inner roller body being provided with a movable hole corresponding to the permanent magnets, a scraper installed on the magnetic separator body and matched with the magnetic roller, and a movable mechanism installed in the magnetic roller and used for controlling the movement of the permanent magnets, the movable mechanism comprising a pull rod, a cam seat and a mounting shaft body, the end of the pull rod being provided with a sliding part, the cam seat being provided with a sliding groove, the sliding groove comprising an annular part and an inner recess, and the inner recess corresponding to the position of the scraper. The application can improve the magnetic separation efficiency of the magnetic separation impurity removing equipment.

Description

Technical Field

[0001] This application belongs to the field of magnetic separator technology, and in particular relates to a magnetic separation and impurity removal device for the production of heavy calcium carbonate powder. Background Technology

[0002] Heavy calcium carbonate (HCC) powder is a common inorganic compound, appearing as a white powder, and is widely found in nature. Minerals rich in HCC powder include calcite, marble, and limestone. HCC powder has various uses, primarily in building materials, paper, and inks. The production steps for HCC powder are: raw material preparation, crushing and grading, and grinding. Magnetic separation is used to remove impurities, as ores often contain iron minerals. Crushing and grinding separate these iron minerals from other worthless minerals.

[0003] Existing methods separate iron minerals from heavy calcium carbonate powder using magnetic separation equipment. In this equipment, iron powder is adsorbed by a magnetic roller. The magnetic roller has a magnetic area with permanent magnets and a non-magnetic area without permanent magnets. The iron powder is magnetically attracted by the magnetic area, and then a scraper moves the iron powder to the non-magnetic area during the rotation of the magnetic roller, thus separating the iron powder from the magnetic roller. However, in this structure, the non-magnetic area cannot magnetically attract iron powder, which limits the magnetic attraction efficiency of the magnetic roller in one revolution. Therefore, this method needs to be improved. Utility Model Content

[0004] The purpose of this application is to address the aforementioned technical problems by providing a magnetic separation and impurity removal device for the production of heavy calcium carbonate powder, which can improve the magnetic separation efficiency of the magnetic separation and impurity removal device.

[0005] This application provides a magnetic separation and impurity removal device for the production of heavy calcium carbonate powder, including a magnetic separator body, the magnetic separator body comprising: Magnetic separation chamber, used for magnetic separation of iron powder; A magnetic roller is installed in a magnetic separation chamber. The magnetic roller is driven by a motor. The magnetic roller includes an outer roller body, an inner roller body, and a permanent magnet. The permanent magnet is movably installed on the inner roller body. The inner roller body is provided with a movable hole corresponding to the permanent magnet. Scraper, installed on the magnetic separator body and adapted to the magnetic roller; An active mechanism, installed in the magnetic roller, is used to control the movement of the permanent magnet. The active mechanism includes a pull rod, a cam seat, and a mounting shaft. The end of the pull rod is provided with a sliding part, and the cam seat is provided with a sliding groove. The sliding groove includes an annular part and a concave part, and the concave part corresponds to the position of the scraper.

[0006] The heavy calcium carbonate powder slurry is placed in a magnetic separation chamber. The rotation of the magnetic roller magnetically attracts iron powder impurities from the slurry, causing it to rotate along with the roller to a scraper. The scraper removes the iron powder from the magnetic roller. The iron powder is then magnetically attracted to the roller by the force of a permanent magnet. A movable mechanism allows the permanent magnet to move radially along the magnetic roller. The permanent magnet moves within a movable hole, improving stability during movement. The outer and inner roller bodies are connected by fasteners and are made of non-magnetic alloys such as stainless steel, zinc alloy, and copper alloy. The movable mechanism allows the permanent magnet to move radially along the axis within the area corresponding to the scraper, at a specific position. By keeping the permanent magnets away from the outer wall of the magnetic roller, the magnetic attraction force on the outer wall is reduced, making it easier for the iron powder to be scraped off by the scraper. The sliding part on the pull rod moves in the sliding groove. The axis of the annular part is the same as the axis of the cam seat. The concave part is composed of a smooth curve, which can improve the stability of the pull rod when it moves. The sliding groove is distributed on the outer circumference of the cam seat. The cross-section of the sliding groove is T-shaped. The sliding part and the sliding groove are matched accordingly. The cam seat and the mounting shaft are connected by fasteners or interference fit. By evenly distributing the permanent magnets around the axis in the magnetic roller, the area in contact with the slurry in the magnetic separation chamber can achieve magnetic attraction during the rotation of the magnetic roller, thereby improving the magnetic separation efficiency of the magnetic roller.

[0007] Furthermore, the magnetic roller includes: End cover seats are installed at both ends of the magnetic roller. The end cover seats are provided with sleeve shaft parts, and the mounting shaft passes through the sleeve shaft parts. The end cover seats are movably connected to the magnetic separator body.

[0008] Furthermore, the magnetic separator body also includes: The fixed base is placed on the magnetic separator body; A connecting seat, which connects the fixed seat and the mounting shaft.

[0009] Furthermore, the magnetic roller also includes: The distribution base connects several permanent magnets to the pull rod.

[0010] Furthermore, the magnetic roller also includes: The damper is connected between the distribution seat and the inner roller body; The elastic element is fitted onto the damper.

[0011] Furthermore, the mounting shaft includes: The limiting part is placed on the mounting shaft and abuts against the cam seat.

[0012] Furthermore, the magnetic separator body also includes: The liquid inlet chamber is used to input slurry and is connected to the magnetic separation chamber. The liquid outlet is used to output the slurry and is connected to the magnetic separation chamber.

[0013] Furthermore, the magnetic separator body also includes: Conveyor belt, corresponding to scraper.

[0014] The beneficial effects of this application are: 1. The movable mechanism is used to move the permanent magnet to a specific position, that is, the position corresponding to the scraper, so that the permanent magnet moves radially in the axial direction in the area corresponding to the scraper, so that the permanent magnet moves away from the outer wall of the magnetic roller, reducing the magnetic attraction force on the outer wall, making it easier for the iron powder to be scraped off by the scraper.

[0015] 2. The iron powder impurities in the heavy calcium carbonate powder slurry are magnetically attracted to the magnetic roller by the rotation of the magnetic roller and rotate together with the magnetic roller to the scraper, and the iron powder on the magnetic roller is scraped off by the scraper.

[0016] 3. The movable mechanism enables the permanent magnet to move radially along the magnetic roller. The permanent magnet moves within the movable hole, improving stability during movement. Attached Figure Description

[0017] Figure 1 This is a side view of the magnetic separator body of this application; Figure 2 This is a top view of the magnetic separator body of this application; Figure 3 This is a schematic diagram of the cam seat structure of this application; Figure 4 For the purposes of this application Figure 1 A magnified view of point A; In the attached diagram, the following labels are used: 100, magnetic separator body; 110, magnetic separation chamber; 120, fixed seat; 130, connecting seat; 140, liquid inlet chamber; 150, liquid outlet; 200, magnetic roller; 210, outer roller body; 220, inner roller body; 221, movable hole; 230, permanent magnet; 240, end cover seat; 241, sleeve shaft part; 300, movable mechanism; 310, pull rod; 311, sliding part; 320, cam seat; 321, sliding groove; 322, annular part; 323, concave part; 330, mounting shaft body; 331, limiting part; 340, distribution seat; 350, damper; 351, elastic element; 400, scraper; 500, conveyor belt. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0019] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0020] The embodiments of this application are described in detail below with reference to the accompanying drawings and specific examples and application scenarios.

[0021] Example 1: like Figures 1-4 As shown in the figure, this application provides a magnetic separation and impurity removal device for the production of heavy calcium carbonate powder, including a magnetic separator body 100, the magnetic separator body 100 comprising: Magnetic separation chamber 110 is used for magnetic separation of iron powder; A magnetic roller 200 is installed in a magnetic separation chamber 110. The magnetic roller 200 is driven by a motor. The magnetic roller 200 includes an outer roller body 210, an inner roller body 220, and a permanent magnet 230. The permanent magnet 230 is movably installed on the inner roller body 220. The inner roller body 220 is provided with a movable hole 221 corresponding to the permanent magnet 230. Scraper 400 is installed on magnetic separator body 100 and is compatible with magnetic roller 200; An active mechanism 300 is installed in the magnetic roller 200. The active mechanism 300 is used to control the movement of the permanent magnet 230. The active mechanism 300 includes a pull rod 310, a cam seat 320, and a mounting shaft 330. The end of the pull rod 310 is provided with a sliding part 311. The cam seat 320 is provided with a sliding groove 321. The sliding groove 321 includes an annular part 322 and a concave part 323. The concave part 323 corresponds to the position of the scraper 400.

[0022] Heavy calcium carbonate powder slurry is placed in magnetic separation chamber 110. The rotation of magnetic roller 200 magnetically attracts iron powder impurities in the slurry onto the roller, which then rotates together with the roller to scraper 400. Scraper 400 scrapes away the iron powder from the roller. The iron powder is then magnetically attracted to the roller by permanent magnet 230. Movable mechanism 300 allows permanent magnet 230 to move radially along the roller. Permanent magnet 230 is positioned within movable hole 221 for improved stability during movement. Outer roller 210 and inner roller 220 are connected by fasteners. Both rollers are made of non-magnetic alloys such as stainless steel, zinc alloy, and copper alloy. Movable mechanism 300 moves permanent magnet 230 at a specific position, corresponding to the scraper 400, causing it to move radially along the axis within the area corresponding to the scraper 400. The permanent magnet 230 is moved away from the outer wall of the magnetic roller 200, reducing the magnetic attraction force on the outer wall and making it easier for the iron powder to be scraped off by the scraper 400. The sliding part 311 on the pull rod 310 is placed in the sliding groove 321 and moves. The axis of the annular part 322 is the same as the axis of the cam seat 320. The concave part 323 is composed of a smooth curve, which can improve the stability of the pull rod 310 when moving. The sliding groove 321 is distributed on the outer circumferential surface of the cam seat 320. The cross section of the sliding groove 321 is T-shaped. The sliding part 311 and the sliding groove 321 are correspondingly matched. The cam seat 320 and the mounting shaft 330 are connected by fasteners or interference fit. By the permanent magnet 230 being evenly distributed around the axis in the magnetic roller 200, the area in contact with the slurry in the magnetic separation chamber 110 can achieve magnetic attraction during the rotation of the magnetic roller 200, thereby improving the magnetic separation efficiency of the magnetic roller 200.

[0023] Furthermore, the magnetic roller 200 includes: End cover seat 240 is installed at both ends of magnetic roller 200. The end cover seat 240 is provided with sleeve shaft portion 241. The mounting shaft 330 passes through the sleeve shaft portion 241. The end cover seat 240 is movably connected to magnetic separator body 100.

[0024] End cap seats 240 are installed at both ends of magnetic roller 200. Magnetic roller 200 is fixedly connected to outer roller body 210 or inner roller body 220 by bolts or other fasteners. Sleeve shaft 241 is mounted on magnetic separator body 100 via bearings. The structure for driving the rotation of magnetic roller 200 includes a motor, chain, sprocket structure, motor, pulley, belt structure, or motor, gear structure. The power is transmitted to end cap seats 240. Sprockets, pulleys, or gears are installed on end cap seats 240. The sleeve is integrally connected to end cap seats 240. End cap seats 240 and mounting shaft 330 are movably connected via bearings.

[0025] Example 2: like Figure 2As shown in the figure, this application embodiment provides a magnetic separation and impurity removal device for the production of heavy calcium carbonate powder. In addition to the above-mentioned technical features, the magnetic separator body 100 further includes: The fixed base 120 is placed on the magnetic separator body 100; The connecting seat 130 is connected between the fixed seat 120 and the mounting shaft 330.

[0026] The fixed seat 120 is welded to the magnetic separator body 100 corresponding to both ends of the magnetic roller 200. The mounting shaft 330 is mounted on the fixed seat 120 through the connecting seat 130. The mounting shaft 330 is mounted statically relative to the magnetic separator body 100, so that the inner concave part 323 of the sliding groove 321 always corresponds to the scraper 400.

[0027] Example 3: like Figure 1 , Figure 2 , Figure 4 As shown in the figure, this application embodiment provides a magnetic separation and impurity removal device for the production of heavy calcium carbonate powder. In addition to the above-mentioned technical features, the magnetic roller 200 further includes: The distribution seat 340 is connected between several permanent magnets 230 and the pull rod 310.

[0028] The axis of the distribution seat 340 is parallel to the axis of the magnetic roller 200. Several permanent magnets 230 are evenly distributed on the distribution seat 340. The pull rod 310 is connected to the corresponding distribution seat 340 by bolts or other fasteners. The distribution seat 340 has at least two pull rods 310. The two pull rods 310 corresponding to the same distribution seat 340 correspond to separate cam seats 320. The distribution seat 340 is pulled by the two pull rods 310. When the distribution seat 340 moves to the position corresponding to the scraper 400, the corresponding permanent magnets 230 can be moved at the same time.

[0029] Furthermore, the magnetic roller 200 also includes: The damper 350 is connected between the distribution seat 340 and the inner roller body 220; The elastic element 351 is sleeved on the damper 350.

[0030] The elastic element 351 is a spring. It is used in conjunction with the damper 350 and installed between the distribution seat 340 and the inner roller body 220. This can improve the buffering performance of the distribution seat 340 when it moves and further improve the stability of the distribution seat 340 when it moves.

[0031] Example 4: like Figure 3 As shown, this application embodiment provides a magnetic separation and impurity removal device for the production of heavy calcium carbonate powder. In addition to the above-mentioned technical features, the mounting shaft 330 further includes: The limiting part 331 is placed on the mounting shaft 330 and abuts against the cam seat 320.

[0032] The limiting part 331 is placed on the mounting shaft 330. When the cam seat 320 is installed, the cam seat 320 abuts against the limiting part 331. The limiting part 331 and the cam seat 320 are fixed by fasteners such as bolts, which facilitates the installation and fixing of the cam seat 320 and the mounting shaft 330.

[0033] Example 5: like Figure 1 As shown in the figure, this application embodiment provides a magnetic separation and impurity removal device for the production of heavy calcium carbonate powder. In addition to the above-mentioned technical features, the magnetic separator body 100 further includes: The liquid inlet chamber 140 is used to input slurry and is connected to the magnetic separation chamber 110; The liquid outlet 150 is used to output the slurry and is connected to the magnetic separation chamber 110.

[0034] The slurry is fed into the inlet chamber 140, and after magnetic separation, it flows out from the outlet 150. The opening height of the inlet chamber 140 is higher than the opening height of the outlet 150. When the slurry is continuously fed into the inlet chamber 140, the magnetically separated slurry can overflow and be discharged through the outlet 150.

[0035] Furthermore, the magnetic separator body 100 also includes: The conveyor belt 500 corresponds to the scraper 400.

[0036] The conveyor belt 500 corresponds to the scraper 400 and is placed at the lower end of the scraper 400 along the direction of gravity. The iron powder scraped by the tube plate flows from the scraper 400 onto the conveyor belt 500. The iron powder is collected by the movement of the conveyor belt 500. The height of the conveyor belt 500 is higher than the height of the liquid outlet 150. The conveyor belt 500 is made of PVC.

[0037] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0038] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A magnetic separation and impurity removal device for the production of heavy calcium carbonate powder, comprising a magnetic separator body (100), characterized in that, The magnetic separator body (100) includes: Magnetic separation chamber (110) is used for magnetic separation of iron powder; A magnetic roller (200) is installed in a magnetic separation chamber (110). The magnetic roller (200) is driven by a motor. The magnetic roller (200) includes an outer roller body (210), an inner roller body (220), and a permanent magnet (230). The permanent magnet (230) is movably installed on the inner roller body (220). The inner roller body (220) is provided with a movable hole (221) corresponding to the permanent magnet (230). A scraper (400) is mounted on the magnetic separator body (100) and adapted to the magnetic roller (200); An active mechanism (300) is installed in the magnetic roller (200). The active mechanism (300) is used to control the movement of the permanent magnet (230). The active mechanism (300) includes a pull rod (310), a cam seat (320), and a mounting shaft (330). The end of the pull rod (310) is provided with a sliding part (311). The cam seat (320) is provided with a sliding groove (321). The sliding groove (321) includes an annular part (322) and a concave part (323). The concave part (323) corresponds to the position of the scraper (400).

2. The magnetic separation and impurity removal equipment for the production of heavy calcium carbonate powder according to claim 1, characterized in that, The magnetic roller (200) includes: End cover seat (240) is installed at both ends of magnetic roller (200). The end cover seat (240) is provided with sleeve shaft part (241). The mounting shaft (330) passes through the sleeve shaft part (241). The end cover seat (240) is movably connected to magnetic separator body (100).

3. The magnetic separation and impurity removal equipment for the production of heavy calcium carbonate powder according to claim 1, characterized in that, The magnetic separator body (100) also includes: A fixed base (120) is placed on the magnetic separator body (100); The connecting seat (130) is connected between the fixed seat (120) and the mounting shaft (330).

4. The magnetic separation and impurity removal equipment for the production of heavy calcium carbonate powder according to claim 1, characterized in that, The magnetic roller (200) also includes: The distribution seat (340) is connected between several permanent magnets (230) and the pull rod (310).

5. The magnetic separation and impurity removal equipment for the production of heavy calcium carbonate powder according to claim 4, characterized in that, The magnetic roller (200) also includes: A damper (350) is connected between the distribution seat (340) and the inner roller body (220); The elastic element (351) is sleeved on the damper (350).

6. The magnetic separation and impurity removal equipment for the production of heavy calcium carbonate powder according to claim 1, characterized in that, The mounting shaft (330) includes: The limiting part (331) is placed on the mounting shaft (330) and abuts against the cam seat (320).

7. The magnetic separation and impurity removal equipment for the production of heavy calcium carbonate powder according to claim 1, characterized in that, The magnetic separator body (100) also includes: The liquid inlet chamber (140) is used to input slurry and is connected to the magnetic separation chamber (110); The liquid outlet (150) is used to output slurry and is connected to the magnetic separation chamber (110).

8. The magnetic separation and impurity removal equipment for the production of heavy calcium carbonate powder according to claim 1, characterized in that, The magnetic separator body (100) also includes: The conveyor belt (500) corresponds to the scraper (400).

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