Multi-stage iron scale raw material screening device and magnetic coarse powder production line

Abstract

The utility model discloses a multistage iron scale raw material screening device and a magnetic coarse powder production line, and belongs to the technical field of magnetic material production, the multistage iron scale raw material screening device comprises a box body, the top of the box body is provided with a screening feed inlet, and a first screen is obliquely arranged in the box body and located below the screening feed inlet; a material crushing assembly is arranged at the bottom end of the first screen mesh, a second screen mesh is obliquely arranged below the material crushing assembly, the tail end of the second screen mesh communicates with a coarse material discharging port preset in the side wall of the box body, a fine material collecting box is arranged below the second screen mesh, and the first screen mesh is used for conducting primary screening on iron scale raw materials fed from the screening feeding port; and the fine materials subjected to primary screening fall into the second screen, the coarse materials fall into the material crushing assembly, the material crushing assembly is used for crushing and screening the coarse materials subjected to primary screening, the coarse materials fall into the second screen, and the second screen is used for conducting secondary screening on the materials treated through the first screen and the material crushing assembly. The device can solve the problems that existing manual iron scale raw material screening is high in working intensity and low in efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic material production, in particular to a multi-stage iron scale raw material screening device. In addition, the utility model also relates to a magnetic coarse powder production line including the multi-stage iron scale raw material screening device. Background Art

[0002] The magnetic material industry is one of the two major material (magnetism and silicon) pillar industries in today's information society. As a functional material, magnetic materials play a very important role. Magnetic materials are one of the material foundations of the information society. They are not only widely used in industrial fields such as automobiles, computers, electronic devices, communications, and aerospace, but also penetrate into people's daily lives. A large amount of magnetic materials are needed in the production of household appliances, children's toys and other products. Modern magnetic materials have been widely used in our lives, such as permanent magnet materials used as motors, core materials used in transformers, magneto-optical disks used as storage, magnetic recording floppy disks for computers, etc.

[0003] The production of magnetic materials mainly uses raw materials such as iron scale. Iron scale is rolled steel scale, also known as iron oxide. It is an inevitable product produced during the forging and hot rolling of steel materials due to the reaction between high-temperature steel and oxygen in the air. Its main components are Fe2O3 and FeO. Due to its low price and sufficient supply, iron scale is widely used as one of the raw materials for the production of permanent magnetic materials, powder metallurgy and special rubber.

[0004] In the production process of magnetic materials, the iron scale raw materials need to be pre-treated, and the pre-treatment mainly involves the drying process. However, since the iron scale raw materials are prone to agglomeration, the drying effect is not good, and the agglomerated materials also affect the subsequent processing operations. At present, the conventional method is to manually screen the iron scale raw materials through a sieve to screen out the fine materials, and then manually crush the agglomerated materials, which has problems such as high work intensity and low efficiency. Utility Model Content

[0005] One purpose of the utility model is to provide a multi-stage iron scale raw material screening device to solve the problems of high work intensity and low efficiency in the existing manual screening of iron scale raw materials.

[0006] Another object of the utility model is to provide a magnetic coarse powder production line including the above-mentioned multi-stage iron scale raw material screening device.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A multi-stage iron scale raw material screening device, comprising:

[0009] A box body is provided with a screening feed port on the top of the box body, a first screen is obliquely arranged below the screening feed port in the box body, a crushing assembly is arranged at the bottom of the first screen, a second screen is obliquely arranged below the crushing assembly, the tail end of the second screen is connected with a coarse material discharge port preset on the side wall of the box body, a fine material collecting box is arranged below the second screen, the first screen is used for performing primary screening on the iron scale raw material fed from the screening feed port, and making the primary screened fine material fall onto the second screen and the coarse material fall into the crushing assembly, the crushing assembly is used for crushing the primary screened coarse material and screening it to fall onto the second screen, the second screen is used for performing secondary screening on the material processed by the first screen and the crushing assembly, and making the secondary screened fine material fall into the fine material collecting box and the coarse material is discharged from the coarse material discharge port.

[0010] In one or more embodiments of the multi-stage iron scale raw material screening device, the crushing assembly includes an arc screen, a roller assembly and a screening motor. The roller assembly is arranged in the arc screen, and the roller assembly is connected to the screening motor. The screening motor is used to drive the roller assembly to rotate to crush the coarse material of the first-stage screening.

[0011] In one or more embodiments of the multi-stage iron scale raw material screening device, the crushing component also includes a roller and a transmission component. The two ends of the roller are connected to the side walls of the box. There are multiple rollers, and the multiple rollers are used for rolling connection with the bottom of the arc screen. The roller assembly is connected to the arc screen through the transmission assembly. The roller assembly drives the arc screen to swing through the transmission assembly to screen the material in the arc screen.

[0012] In one or more embodiments of the multi-stage iron scale raw material screening device, the roller assembly includes a first roller and a second roller, the first roller is installed through a driving shaft, and the second roller is installed through a driven shaft, the driving shaft is connected to the output shaft of the screening motor, the driving shaft and the driven shaft are connected through a flexible transmission assembly, and the driving shaft is connected to the arc screen through the transmission assembly.

[0013] In one or more embodiments of the multi-stage iron scale raw material screening device, the transmission assembly includes a driving gear, a driven gear, a rotating member and a push rod. The driving gear is mounted on the driving shaft, the driven gear is mounted on the side wall of the box body through the mounting shaft and meshes with the driving gear, the rotating member is mounted on the side wall of the box body through the rotating shaft and meshes with the driven gear, a baffle rod is provided on the inner surface of the arc screen, the first end of the push rod is connected to the rotating member, the driving gear is used to drive the rotating member to rotate through the driven gear, and then the rotating member drives the push rod to rotate, and the baffle rod and the arc screen are reciprocated and pushed to swing through the second end of the push rod.

[0014] In one or more embodiments of the multi-stage iron scale raw material screening device, the push rod is connected to the rotating member through a support column, a limiting screw hole is opened on the side wall of the rotating member, the limiting screw hole is used for threaded connection with the first end of the support column, and the second end of the support column is connected to the first end of the push rod.

[0015] In one or more embodiments of the multi-stage iron scale raw material screening device, a plurality of limiting screw holes are provided, and the plurality of limiting screw holes are arranged at intervals and opened on the side wall of the rotating member.

[0016] In one or more embodiments of the multi-stage iron scale raw material screening device, the crushing assembly also includes a compression spring and a mounting plate, the first end of the compression spring is connected to the first end of the arc screen, the second end of the compression spring is connected to the first end of the mounting plate, the second end of the mounting plate is connected to the inner wall of the box, and the compression spring is used to provide an elastic force to push the first end of the arc screen away from the mounting plate.

[0017] In one or more embodiments of the multi-stage iron scale raw material screening device, the multi-stage iron scale raw material screening device also includes a filter water tank and a connecting pipe, the side wall of the box body is provided with an exhaust port, the first end of the connecting pipe is connected to the exhaust port, a filter net is arranged in the connecting pipe, and the second end of the connecting pipe is used to extend below the liquid level of the filter water tank.

[0018] According to another aspect of the utility model, a magnetic coarse powder production line is also provided, which includes the above-mentioned multi-stage iron scale raw material screening device.

[0019] The utility model has the following beneficial effects:

[0020] The box of the utility model multi-stage iron scale raw material screening device is provided with a first screen, a crushing assembly and a second screen from top to bottom in sequence. The first screen can perform primary screening, and the fine material after the primary screening falls into the second screen, and the coarse material after the primary screening falls into the crushing assembly for further crushing and screening. Only qualified fine material falls into the second screen, and the high-quality fine material after the second screen falls into the fine material collection box, while the unqualified material after the secondary screening is discharged from the coarse material outlet for other uses. In this way, efficient multi-stage screening is achieved, and the crushing assembly can effectively improve the screening efficiency of the raw materials, reduce the content of agglomerated materials, and increase the proportion of fine materials.

[0021] The magnetic coarse powder production line of the utility model also has the above beneficial effects.

[0022] Of course, any product implementing the present invention does not necessarily need to achieve all the advantages described above at the same time. In addition to the purposes, features and advantages described above, the present invention also has other purposes, features and advantages. The present invention will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0024] Figure 1 It is an overall schematic diagram of the screening device of the preferred embodiment of the utility model;

[0025] Figure 2 It is a schematic diagram of the internal system of the screening device of the preferred embodiment of the utility model.

[0026] Figure 3 It is a schematic structural diagram of a crushing component of a preferred embodiment of the utility model.

[0027] Figure 4 It is a schematic diagram of the installation of the rotating part of the preferred embodiment of the utility model.

[0028] Figure 5 It is a schematic diagram of the installation of the push rod of the preferred embodiment of the utility model.

[0029] Legend: 1. Box body; 2. Screening feed port; 3. First screen; 4. Crushing assembly; 5. Second screen; 6. Fine material collection box; 7. Coarse material discharge port; 8. Curved screen; 9. Side baffle; 10. First roller; 11. Second roller; 12. Driving shaft; 13. Driven shaft; 14. Rotating part; 15. Mounting plate; 16. Compression spring; 17. Roller; 18. Discharge plate; 19. Driving gear; 20. Driven gear; 21. Support column; 22. Screening motor; 23. Push rod; 24. Stop rod. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. However, the present invention can be implemented in a variety of different ways as defined and covered below.

[0031] Please refer to the attached drawing, which is a structural schematic diagram of a preferred embodiment of a multi-stage iron scale raw material screening device and a magnetic coarse powder production line provided by the utility model.

[0032] A multi-stage iron scale raw material screening device, comprising:

[0033] A box body 1 is provided with a screening feed port 2 on the top of the box body 1, a first screen 3 is obliquely arranged below the screening feed port 2 in the box body 1, a crushing assembly 4 is arranged at the bottom of the first screen 3, a second screen 5 is obliquely arranged below the crushing assembly 4, the tail end of the second screen 5 is connected with a coarse material discharge port 7 preset on the side wall of the box body 1, a fine material collecting box 6 is arranged below the second screen 5, the first screen 3 is used for performing a primary screening on the iron scale raw material fed from the screening feed port 2, and making the fine material of the primary screening fall onto the second screen 5 and the coarse material fall into the crushing assembly 4, the crushing assembly 4 is used for crushing the coarse material of the primary screening and screening it to fall onto the second screen 5, the second screen 5 is used for performing a secondary screening on the material processed by the first screen 3 and the crushing assembly 4, and making the fine material of the secondary screening fall into the fine material collecting box 6 and the coarse material is discharged from the coarse material discharge port 7.

[0034] The box 1 of the utility model is provided with a first screen 3, a crushing assembly 4 and a second screen 5 from top to bottom. The first screen 3 can perform primary screening. Fine materials after primary screening fall into the second screen 5, and coarse materials after primary screening fall into the crushing assembly 4 for further crushing and screening. Only qualified fine materials fall into the second screen 5. High-quality fine materials after screening by the second screen 5 fall into the fine material collection box 6, and unqualified materials after secondary screening are discharged from the coarse material outlet 7 for other uses. In this way, efficient multi-stage screening is achieved, and the crushing assembly 4 can effectively improve the screening efficiency of raw materials, reduce the content of agglomerated materials, and increase the proportion of fine materials.

[0035] Preferably, please refer to Figure 2 , 3 As shown, the crushing assembly 4 includes an arc screen 8, a roller assembly and a screening motor 22. The roller assembly is arranged in the arc screen 8, and the roller assembly is connected to the screening motor 22. The screening motor 22 is used to drive the roller assembly to rotate to crush the coarse material of the first-stage screening.

[0036] Preferably, the crushing assembly 4 also includes a roller 17 and a transmission assembly. The two ends of the roller 17 are connected to the side walls of the box body 1. There are multiple rollers 17, and the multiple rollers 17 are used to roll and connect with the bottom of the arc screen 8. The roller assembly is connected to the arc screen 8 through the transmission assembly. The roller assembly drives the arc screen 8 to swing through the transmission assembly to screen the material in the arc screen 8.

[0037] It is understandable that the curved screen 8 can swing on each roller 17, thereby realizing a swing-type screening operation, which can increase the screening speed and reduce the stuck phenomenon of materials in the screen holes of the curved screen 8. The roller assembly can not only further crush the coarse materials screened at the first level, avoiding the existence of a large number of agglomerated materials in the screened materials, and ensuring the quality of subsequent processing, but also drive the curved screen 8 to swing, providing a driving force for the curved screen 8 to swing, without the need for an additional driving mechanism to drive the curved screen 8 to move, which is conducive to streamlining the structure, saving energy consumption, and reducing overall costs.

[0038] Preferably, please refer to Figure 2 , 3 As shown, the roller assembly includes a first roller 10 and a second roller 11. The first roller 10 is installed through a driving shaft 12, and the second roller 11 is installed through a driven shaft 13. The driving shaft 12 is connected to the output shaft of the screening motor 22. The driving shaft 12 and the driven shaft 13 are connected through a flexible transmission assembly, and the driving shaft 12 is connected to the arc screen 8 through the transmission assembly.

[0039] It is understandable that the screening motor 22 drives the driving shaft 12 and the first roller 10 to rotate, and the driving shaft 12 drives the driven shaft 13 and the second roller 11 to rotate through the flexible transmission assembly, so that the roller assembly can crush the agglomerated materials. At the same time, the driving shaft 12 also drives the arc screen 8 to swing through the transmission assembly, so it has multiple functions, which is conducive to realizing a more streamlined structure, reducing the number of parts and components, and reducing the overall cost.

[0040] The flexible transmission member can be a pulley assembly or a sprocket assembly. Optionally, the driving shaft 12 can also drive the driven shaft 13 to rotate through a gear pair transmission assembly. Using a standard transmission assembly is not only conducive to cost saving, but also convenient for maintenance and replacement.

[0041] Preferably, please refer to Figure 4 , 5 As shown, the transmission assembly includes a driving gear 19, a driven gear 20, a rotating member 14 and a push rod 23. The driving gear 19 is mounted on the driving shaft 12. The driven gear 20 is mounted on the side wall of the box body 1 through the mounting shaft and meshes with the driving gear 19. The rotating member 14 is mounted on the side wall of the box body 1 through the rotating shaft and meshes with the driven gear 20. A baffle 24 is provided on the inner surface of the arc screen 8. The first end of the push rod 23 is connected to the rotating member 14. The driving gear 19 is used to drive the rotating member 14 to rotate through the driven gear 20, and then the rotating member 14 drives the push rod 23 to rotate, and the second end of the push rod 23 reciprocates to push the baffle 24 and the arc screen 8 to swing.

[0042] It is understandable that the screening motor 22 drives the driving shaft 12 and the driving gear 19 to rotate, the driving gear 19 drives the driven gear 20 to rotate, the driven gear 20 drives the rotating member 14 to rotate, and then the rotating member 14 drives the push rod 23 to rotate, and the push rod 23 will contact with the blocking rod 24 at intervals when rotating, and when the push rod 23 contacts the blocking rod 24, it will push the blocking rod 24 and the arc screen 8 to move, that is, push the arc screen 8 to swing, realize swing-type screening, and improve the efficiency of screening. Through the setting of the transmission component, the additional driving mechanism to drive the arc screen 8 to swing can be eliminated, which is conducive to saving energy consumption and reducing costs.

[0043] Preferably, please refer to Figure 2 , 3 As shown, the push rod 23 is connected to the rotating member 14 through the support column 21. A limiting screw hole is opened on the side wall of the rotating member 14. The limiting screw hole is used to be threadedly connected to the first end of the support column 21. The second end of the support column 21 is connected to the first end of the push rod 23.

[0044] It can be understood that the push rod 23 is installed through the support column 21, the angle of the push rod 23 can be adjusted, or the support column 21 can be conveniently rotated to move the second end of the push rod 23 toward the center position of the rotating member 14, thereby achieving the storage of the push rod 23 and breaking the contact between the push rod 23 and the blocking rod 24.

[0045] Optionally, a plurality of limiting screw holes are provided, and the plurality of limiting screw holes are arranged at intervals and opened on the side wall of the rotating member 14 .

[0046] It can be understood that the support column 21 can be positionally adjusted by cooperating with different limit screw holes, so that the position of the push rod 23 can be adjusted through the support column 21 to adjust the distance that the second end of the push rod 23 extends out of the outside of the rotating member 14, so as to better cooperate with the baffle rod 24, or when the arc screen 8 does not need to swing, the push rod 23 can also be separated from the contact with the baffle rod 24, which can adapt to more working conditions.

[0047] Preferably, please refer to Figure 1 As shown, the crushing assembly 4 also includes a compression spring 16 and a mounting plate 15, the first end of the compression spring 16 is connected to the first end of the arc screen 8, the second end of the compression spring 16 is connected to the first end of the mounting plate 15, the second end of the mounting plate 15 is connected to the inner wall of the box body 1, and the compression spring 16 is used to provide an elastic force to push the first end of the arc screen 8 away from the mounting plate 15.

[0048] It can be understood that the compression spring 16 not only limits the first end of the arc screen 8, but also limits the overall swing amplitude of the arc screen 8, preventing the arc screen 8 from swinging too much and detaching from the roller 17. At the same time, the compression spring 16 can also realize the resetting function of the arc screen 8. When the arc screen 8 swings toward the side close to the mounting plate 15, the compression spring 16 is compressed, and then the arc screen 8 can be pushed to swing toward the side away from the mounting plate 15. In this way, the blocking rod 24 can be more smoothly contacted with the push rod 23 again, so that the push rod 23 can repeatedly push the arc screen 8 to swing back and forth.

[0049] Preferably, the multi-stage iron scale raw material screening device also includes a filter water tank and a connecting pipe. The side wall of the box body 1 is provided with an exhaust port, the first end of the connecting pipe is connected to the exhaust port, a filter screen is arranged in the connecting pipe, and the second end of the connecting pipe is used to extend below the liquid level of the filter water tank.

[0050] It is understandable that the waste gas containing suspended matter such as dust and impurities generated in the box 1 can be filtered through the filter screen and filter water tank in the connecting pipe, reducing the pollution of the air environment of the workshop caused by the screening process, which is conducive to achieving green production.

[0051] According to another aspect of the utility model, a magnetic coarse powder production line is also provided, which includes the above-mentioned multi-stage iron scale raw material screening device.

[0052] The magnetic coarse powder production line of the utility model also has the above-mentioned beneficial effects, including effectively improving the quality of screening, accelerating the efficiency of screening, and greatly reducing the labor intensity of manual screening and manual crushing.

[0053] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0054] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the utility model, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection of the utility model.

Claims

1. A multi-stage iron scale raw material screening device, characterized in that: include: A box body (1) is provided with a screening feed opening (2) at the top of the box body (1), a first screen (3) is obliquely arranged below the screening feed opening (2) in the box body (1), a crushing assembly (4) is arranged at the bottom of the first screen (3), a second screen (5) is obliquely arranged below the crushing assembly (4), the tail end of the second screen (5) is connected to a coarse material discharge opening (7) preset on the side wall of the box body (1), a fine material collection box (6) is arranged below the second screen (5), and the first screen (3) is used to collect the coarse material from the screening feed opening (2) and the fine material from the screening feed opening (2). The iron scale raw material fed from the feed port (2) is subjected to primary screening, and the fine material of the primary screening falls onto the second screen (5) while the coarse material falls into the crushing assembly (4); the crushing assembly (4) is used to crush the coarse material of the primary screening and screen it to fall onto the second screen (5); the second screen (5) is used to perform secondary screening on the material processed by the first screen (3) and the crushing assembly (4), and the fine material of the secondary screening falls into the fine material collection box (6) while the coarse material is discharged from the coarse material discharge port (7).

2. A multi-stage scale raw material screening device according to claim 1, characterized in that: The crushing assembly (4) comprises an arc screen (8), a roller assembly and a screening motor (22). The roller assembly is arranged in the arc screen (8). The roller assembly is connected to the screening motor (22). The screening motor (22) is used to drive the roller assembly to rotate so as to crush the coarse material screened in the first stage.

3. A multi-stage scale raw material screening device according to claim 2, characterized in that: The crushing assembly (4) further comprises a roller (17) and a transmission assembly. Both ends of the roller (17) are connected to the side walls of the box body (1). A plurality of rollers (17) are provided. The plurality of rollers (17) are used for rolling connection with the bottom of the curved screen (8). The roller assembly is connected to the curved screen (8) via the transmission assembly. The roller assembly drives the curved screen (8) to swing via the transmission assembly to screen the material in the curved screen (8).

4. A multi-stage scale raw material screening device according to claim 3, characterized in that: The roller assembly comprises a first roller (10) and a second roller (11); the first roller (10) is installed via a driving shaft (12); the second roller (11) is installed via a driven shaft (13); the driving shaft (12) is connected to an output shaft of a screening motor (22); the driving shaft (12) and the driven shaft (13) are connected via a flexible transmission assembly; the driving shaft (12) is connected to the curved screen (8) via the transmission assembly.

5. A multi-stage scale raw material screening device according to claim 4, characterized in that: The transmission assembly comprises a driving gear (19), a driven gear (20), a rotating member (14) and a push rod (23). The driving gear (19) is mounted on a driving shaft (12). The driven gear (20) is mounted on a side wall of a housing (1) through a mounting shaft and meshes with the driving gear (19). The rotating member (14) is mounted on a side wall of the housing (1) through a rotating shaft and meshes with the driven gear (20). A blocking rod (24) is arranged on the inner surface of the arc screen (8). The first end of the push rod (23) is connected to the rotating member (14). The driving gear (19) is used to drive the rotating member (14) to rotate through the driven gear (20), and then the rotating member (14) drives the push rod (23) to rotate, and the second end of the push rod (23) reciprocates to push the blocking rod (24) and the arc screen (8) to swing.

6. A multi-stage scale raw material screening device according to claim 5, characterized in that: The push rod (23) is connected to the rotating member (14) through the support column (21); a limiting screw hole is provided on the side wall of the rotating member (14); the limiting screw hole is used for threaded connection with the first end of the support column (21); and the second end of the support column (21) is connected to the first end of the push rod (23).

7. A multi-stage scale raw material screening device according to claim 6, characterized in that: A plurality of limiting screw holes are provided, and the plurality of limiting screw holes are arranged at intervals and opened on the side wall of the rotating member (14).

8. The multi-stage scale raw material screening device according to claim 3, characterized in that: The crushing assembly (4) also includes a compression spring (16) and a mounting plate (15), wherein the first end of the compression spring (16) is connected to the first end of the arc screen (8), the second end of the compression spring (16) is connected to the first end of the mounting plate (15), and the second end of the mounting plate (15) is connected to the inner wall of the box body (1), and the compression spring (16) is used to provide an elastic force to push the first end of the arc screen (8) away from the mounting plate (15).

9. The multi-stage scale raw material screening device according to claim 1, characterized in that: The multi-stage iron scale raw material screening device also includes a filter water tank and a connecting pipe. The side wall of the box body (1) is provided with an exhaust port. The first end of the connecting pipe is connected to the exhaust port. A filter screen is arranged in the connecting pipe. The second end of the connecting pipe is used to extend below the liquid level of the filter water tank.

10. A magnetic coarse powder production line, characterized in that: It comprises a multi-stage iron scale raw material screening device as described in any one of claims 1 to 9.

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