Impurity removal device in dolomite conveying process
By employing a multi-stage screening and magnetic separation mechanism, the problem of impurity removal during the dolomite transportation process has been solved, achieving efficient impurity removal and improving product purity and equipment operational stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-04-14
AI Technical Summary
During the mining, processing and transportation of dolomite, it is difficult to effectively remove impurities such as plastics, soil and iron ore, which affects the quality of dolomite and the cost of equipment maintenance.
The system employs a multi-stage screening and magnetic separation mechanism, combined with a screening box, a vibrating motor, an industrial camera, and a magnetic separator, to achieve dynamic impurity removal from dolomite. This includes a first and second screening mechanism to screen for soil impurities, a detection mechanism to identify plastic impurities, and a magnetic separation mechanism to adsorb iron ore impurities.
It improves the efficiency of dolomite impurity removal, ensures product purity, reduces equipment wear, and lowers maintenance costs.
Smart Images
Figure CN224114184U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of dolomite production technology, and specifically relates to a device for removing impurities during the dolomite conveying process. Background Technology
[0002] In industrial production, dolomite is widely used in many fields such as building materials, glass manufacturing, and refractory materials. Different application scenarios have strict requirements on the purity of dolomite; only high-purity dolomite can ensure that the quality and performance of the products meet the standards.
[0003] However, various impurities inevitably get mixed in during the mining, processing, and transportation of dolomite. Plastic impurities usually come from packaging waste at the mining site or plastic products attached to the conveying equipment; soil impurities are mostly due to the influence of the mining environment and are mixed with dolomite during excavation and transportation; and metallic impurities such as iron ore enter the dolomite from the mixing of surrounding ores or from the wear and tear of mining equipment.
[0004] If these impurities are not removed in a timely and effective manner, not only will the quality of dolomite be reduced, but it may also cause wear and tear on subsequent processing equipment, increase equipment maintenance costs, and affect production efficiency. Therefore, developing an efficient and reliable impurity removal device for the dolomite conveying process is of great practical significance. Utility Model Content
[0005] The purpose of this utility model is to provide a device for removing impurities during the conveying process of dolomite, thereby overcoming the defects mentioned in the background art.
[0006] A dolomite conveying and impurity removal device includes a first screening mechanism and a second screening mechanism disposed below the first screening mechanism. The discharge end of the first screening mechanism is provided with a first conveying mechanism, a first detection mechanism is provided on the first conveying mechanism, and a first magnetic separation mechanism is provided at the discharge end of the first conveying mechanism. The discharge end of the second screening mechanism is provided with a second conveying mechanism, a second detection mechanism is provided on the second conveying mechanism, and a second magnetic separation mechanism is provided at the discharge end of the second conveying mechanism. A waste conveying mechanism is disposed below the second screening mechanism. Anti-clogging mechanisms are respectively connected to the first screening mechanism and the second screening mechanism.
[0007] Preferably, the first screening mechanism includes a first sieve plate with a first sieve hole having a diameter of 30 mm; the second screening mechanism includes a second sieve plate with a second sieve hole having a diameter of 10 mm.
[0008] Preferably, the first screen plate and the second screen plate are connected inclinedly from top to bottom inside the screening box. The top of the screening box is provided with a feed inlet. The screening box is provided with a first discharge outlet and a second discharge outlet at the lower ends of the first screen plate and the second screen plate, respectively. The bottom of the screening box is provided with a third discharge outlet.
[0009] Preferably, the screening box has a first opening on each of its two first sides, and a door panel is connected to the first opening.
[0010] Preferably, the screening box has two second openings on its two second sides; two connecting plates are connected between the first screen plate and the second screen plate, and a fixing plate is connected to each of the two connecting plates. The fixing plate passes through the second opening and is connected to the vibration motor through a U-shaped plate. The vibration motor and the screening box are connected and installed on the platform.
[0011] Preferably, both the first detection mechanism and the second detection mechanism include a positioning plate, an industrial camera is connected to the positioning plate, an alarm device is connected to the side of the positioning plate, and the alarm device and the industrial camera are both connected to a central control unit.
[0012] Preferably, the anti-clogging mechanism includes a retractable hose, with its two ends connected to a first pipe and a second pipe, respectively. A branch pipe is connected to the first pipe, and a high-pressure nozzle is connected to the branch pipe. The second pipe is connected to a high-pressure air source.
[0013] The first pipe is connected to a first support block, the first support block is connected to a connecting block, the connecting block is connected to a push rod, and the push rod is connected to a support component.
[0014] Preferably, the supporting component includes a horizontal support rod, an inclined support rod connected to the horizontal support rod, one end of the horizontal support rod and the inclined support rod connected to the first screening mechanism and the second screening mechanism, a mounting platform connected to the other end of the horizontal support rod, a driving component of the push rod connected to the mounting platform, a second support block connected to the push rod, and the second support block connected to the horizontal support rod.
[0015] Preferably, both the first magnetic separation mechanism and the second magnetic separation mechanism include a package box. The package box has a passage opening on its side and an installation opening on its top. A magnetic separator roller is installed in the installation opening, and a permanent magnet is connected to the magnetic separator roller. An installation cover is connected to the package box to cover the installation opening, and a negative pressure fan is connected to the installation cover. At the installation opening, part of the magnetic separator roller is located inside the package box, and part of the magnetic separator roller is located outside the package box.
[0016] Preferably, the package box is provided with a plurality of magnetic separators.
[0017] This utility model provides a dolomite conveying process impurity removal device. First, a first screening mechanism and a second screening mechanism screen the crushed dolomite to remove impurities such as mud. These impurities are then transported away by a waste transport mechanism. The screened dolomite then passes through a testing mechanism to detect the presence of impurities such as plastic. These impurities are then removed. Subsequently, a magnetic separation mechanism adsorbs and removes iron ore and other impurities from the dolomite. The entire impurity removal process is completed during the dynamic transport of the dolomite, improving the efficiency of impurity removal. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.
[0019] Figure 1 This is a schematic diagram of the structure of a dolomite conveying process impurity removal device provided by this utility model;
[0020] Figure 2 This is a side view of a dolomite conveying process impurity removal device provided by this utility model;
[0021] Figure 3 yes Figure 1 Enlarged schematic diagram of part B;
[0022] Figure 4 yes Figure 2 An enlarged schematic diagram of part A in the middle;
[0023] Figure 5 This is a schematic diagram of the connection structure between the first screening mechanism and the second screening mechanism provided by this utility model;
[0024] Figure 6 This is a schematic diagram of the connection structure between the first screening mechanism and the second screening mechanism provided by this utility model;
[0025] Figure 7 This is a schematic diagram of the connection structure between the first screening mechanism and the second screening mechanism provided by this utility model;
[0026] Figure 8 This is a schematic diagram of the structure of the screening box provided by this utility model;
[0027] Explanation of key figure labels:
[0028] 1-First screen plate, 2-First screen plate, 3-Screening box, 30-Inlet, 31-First outlet, 32-Second outlet, 33-Third outlet, 34-First opening, 35-Second opening, 4-Door panel, 5-Connecting plate, 6-Fixing plate, 7-U-shaped plate, 8-Vibration motor, 9-Platform, 10-Positioning plate, 11-Industrial camera, 12-Alarm device, 13-Extendable flexible hose, 14-First pipe, 15-Second pipe, 16- - Branch pipe, 17- High pressure nozzle, 18- First support block, 19- Connecting block, 20- Push rod, 201- Drive component, 21- Horizontal support rod, 22- Inclined support rod, 23- Mounting platform, 24- Second support block, 25- Package box, 250- Through port, 251- Mounting port, 26- Magnetic separator, 27- Mounting cover, 28- Conveyor belt, 41- First transport mechanism, 42- Second transport mechanism, 43- Waste transport mechanism. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] In the description of this utility model, it should be noted that the terms "center," "longitudinal," and "lateral" are used interchangeably.
[0031] The terms "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "top surface," "bottom surface," "inner," "outer," "inner side," and "outer side" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0032] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If the terms "first," "second," and "third" are used in the description, they are for descriptive purposes and to distinguish technical features, and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.
[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will now be described based on its overall structure.
[0034] See Figure 1 A dolomite conveying and impurity removal device includes a first screening mechanism and a second screening mechanism disposed below the first screening mechanism. The discharge end of the first screening mechanism is provided with a first transport mechanism 41, a first detection mechanism is provided on the first transport mechanism 41, and a first magnetic separation mechanism is provided at the discharge end of the first transport mechanism 41. The discharge end of the second screening mechanism is provided with a second transport mechanism 42, a second detection mechanism is provided on the second transport mechanism 42, and a second magnetic separation mechanism is provided at the discharge end of the second transport mechanism 42. A waste transport mechanism 43 is disposed below the second screening mechanism. Anti-blocking mechanisms are respectively connected to the first screening mechanism and the second screening mechanism.
[0035] The first transport mechanism 41, the second transport mechanism 42, and the waste transport mechanism are belt transport mechanisms.
[0036] The dolomite conveying process impurity removal device described above first uses a first screening mechanism and a second screening mechanism to screen the crushed dolomite, removing impurities such as mud. These impurities are then transported away by a waste transport mechanism. The screened dolomite then passes through a testing mechanism to detect the presence of impurities such as plastic, which are then removed. Subsequently, a magnetic separation mechanism adsorbs and removes iron ore and other impurities from the dolomite. The entire impurity removal process is completed during the dynamic transport of the dolomite, improving the efficiency of impurity removal.
[0037] See Figure 5 In a preferred embodiment, the first screening mechanism includes a first sieve plate 1, on which a first sieve hole is provided, the diameter of which is 30mm; the second screening mechanism includes a second sieve plate 2, on which a second sieve hole is provided, the diameter of which is 10mm.
[0038] The dolomite particles crushed by the jaw crusher have a particle size of 10mm to 50mm. After passing through the first screen plate 1, the dolomite particles smaller than 30mm fall onto the second screen plate 2. Since the screen holes of the second screen plate 2 are 10mm, some soil impurities in the dolomite can fall through the screen holes on the second screen plate 2 onto the waste transport mechanism and be transported away by the waste transport mechanism.
[0039] See Figure 5 and Figure 6 In a preferred embodiment, the first screen plate 1 and the second screen plate 2 are connected obliquely from top to bottom inside the screening box 3. The top of the screening box 3 is provided with a feed inlet 30. The screening box 3 is provided with a first discharge outlet 31 and a second discharge outlet 32 at the lower ends of the first screen plate 1 and the second screen plate 2, respectively. The bottom of the screening box 3 is provided with a third discharge outlet 33.
[0040] The crushed dolomite falls from the feed inlet 30 at the top of the screening box 3 onto the first screen plate 1 inside the screening box 3. Dolomite particles larger than 30mm fall from the first discharge outlet 31 on the screening box 3 onto the first conveying mechanism, dolomite particles smaller than 30mm fall onto the second screen plate 2, and dolomite particles larger than 10mm fall from the second discharge outlet 32 on the screening box 3 onto the second conveying mechanism. The mud and impurities in the dolomite fall from the third discharge outlet 33 onto the waste conveying mechanism.
[0041] See Figure 1 , Figure 5 , Figure 6 and Figure 8 In a preferred embodiment, the screening box 3 has a first opening 34 on each of its two first sides, and a door panel 4 is connected to the first opening 34. When the first sieve plate 1 and the second sieve plate 2 are in screening operation, the door panel 4 on the screening box 3 seals the first opening 34.
[0042] See Figure 1 , Figure 5 and Figure 7 In a preferred embodiment, the screening box 3 has two second openings 35 on its two second sides respectively; two connecting plates 5 are connected between the first screen plate 1 and the second screen plate 2, and a fixing plate 6 is connected to each of the two connecting plates 5. The fixing plate 6 passes through the second opening 35 and is connected to the vibration motor 8 through a U-shaped plate 7. The vibration motor 8 and the screening box 3 are connected and installed on the platform 9.
[0043] The screening box 3 is equipped with a vibration motor 8 on each of its two sides. The two vibration motors 8 operate simultaneously. Since the first screen plate 1 and the second screen plate 2 are connected by a connecting plate 5, the two vibration motors 8 cause the first screen plate 1 and the second screen plate 2 to vibrate simultaneously, thereby achieving the screening effect.
[0044] In some other embodiments, the two vibration motors 8 can also operate independently. When operating independently, only one vibration motor 8 is running while the other vibration motor 8 is not running. This method is used when the amount of dolomite on the first sieve plate 1 and the second sieve plate 2 is small.
[0045] See Figure 1 In a preferred embodiment, both the first detection mechanism and the second detection mechanism include a positioning plate 10, an industrial camera 11 is connected to the positioning plate 10, an alarm device 12 is connected to the side of the positioning plate 10, and the alarm device 12 and the industrial camera 11 are both connected to a central control unit.
[0046] In this system, the positioning plate 10 of the first detection mechanism is mounted above the first transport mechanism, enabling the industrial camera 11 to capture images of the dolomite on the first transport mechanism. Based on the image capture, the camera identifies plastic or wood impurities in the dolomite. When plastic or other impurities are detected, the alarm device 12 sounds an alarm, and the workers at the location of the first transport mechanism clean the impurities. The second detection mechanism above the second transport mechanism works similarly.
[0047] See Figure 2 and Figure 4 In a preferred embodiment, the anti-clogging mechanism includes a retractable hose 13, with its two ends connected to a first pipe 14 and a second pipe 15, respectively. A branch pipe 16 is connected to the first pipe 14, and a high-pressure nozzle 17 is connected to the branch pipe 16. The second pipe 15 is connected to a high-pressure air source. A first support block 18 is connected to the first pipe 14, and a connecting block 19 is connected to the first support block 18. The connecting block 19 is connected to a push rod 20, which is connected to a support component.
[0048] Since the first screen plate 1 and the second screen plate 2 are used for screening for a long time, when the screen holes become clogged, especially the second screen plate 2, which is clogged more frequently than the first screen plate 1, when clearing the first screen plate 1 and the second screen plate 2 in the screening box 3, since the first pipe 14 and the second pipe 15 are provided with a retractable hose 13, the push rod 20 can push the first pipe 14, so that the first pipe 14 and the branch pipe 16 on the first pipe 14 enter the screening box 3 from the first opening 34 on the screening box 3, so that the high-pressure nozzle 17 on the branch pipe 16 sprays high-pressure gas downward to sweep the screen holes on the first screen plate 1 or the second screen plate 2, thereby preventing the first screen plate 1 or the second screen plate 2 from becoming clogged.
[0049] See Figure 3 In a preferred embodiment, the supporting component includes a horizontal support rod 21, an inclined support rod 22 connected to the horizontal support rod 21, one end of the horizontal support rod 21 and the inclined support rod 22 connected to the first screening mechanism and the second screening mechanism, and a mounting platform 23 connected to the other end of the horizontal support rod 21. The driving component 201 of the push rod 20 is connected to the mounting platform 23, and a second support block 24 is connected to the push rod 20. The second support block 24 is connected to the horizontal support rod 21.
[0050] See Figure 1 and Figure 3 In a preferred embodiment, both the first magnetic separation mechanism and the second magnetic separation mechanism include a package box 25. The package box 25 has a passage opening 250 on its side and an installation opening 251 on its top. A magnetic separator roller 26 is installed in the installation opening 251, and a permanent magnet is connected to the magnetic separator roller 26. An installation cover 27 covering the installation opening 251 is connected to the package box 25, and a negative pressure fan is connected to the installation cover 27. At the location of the installation opening 251, part of the magnetic separator roller 26 is located inside the package box 25, and part of the magnetic separator roller 26 is located outside the package box 25. A plurality of magnetic separator rollers 26 are provided on the package box 25.
[0051] The first and second transport mechanisms are equipped with conveyor belts 28 at their discharge ends, allowing dolomite from these mechanisms to fall onto the conveyor belts 28. The conveyor belts 28 pass through a port 250 on the parcel box 25, allowing the dolomite on the conveyor belts 28 to enter the parcel box 25. A permanent magnet is installed on the magnetic separator 26, which can adsorb impurities such as iron ore from the dolomite on the conveyor belts 28 below it. Because the magnetic separator 26 is rotating, the negative pressure on the mounting cover 27 can remove the impurities such as iron ore from the magnetic separator 26.
[0052] In summary, the dolomite conveying process impurity removal device provided by this utility model can remove impurities such as mud, plastic, wood, and iron ore from dolomite, and can achieve automated control, thereby improving work efficiency.
[0053] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art, after reading this specification, can make modifications, substitutions, variations, and various choices and changes to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, variations, and choices and changes are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. A device for removing impurities during the conveying process of dolomite, characterized in that, The device includes a first screening mechanism and a second screening mechanism disposed below the first screening mechanism. The first screening mechanism has a first transport mechanism at its discharge end, a first detection mechanism on the first transport mechanism, and a first magnetic separation mechanism at its discharge end. The second screening mechanism has a second transport mechanism at its discharge end, a second detection mechanism on the second transport mechanism, and a second magnetic separation mechanism at its discharge end. A waste transport mechanism is disposed below the second screening mechanism. Anti-blocking mechanisms are connected to both the first and second screening mechanisms.
2. The dolomite conveying process impurity removal device according to claim 1, characterized in that, The first screening mechanism includes a first sieve plate with a first sieve hole having a diameter of 30 mm; the second screening mechanism includes a second sieve plate with a second sieve hole having a diameter of 10 mm.
3. The dolomite conveying process impurity removal device according to claim 2, characterized in that, The first screen plate and the second screen plate are connected at an incline from top to bottom inside the screening box. The top of the screening box is provided with a feed inlet. The screening box is provided with a first discharge outlet and a second discharge outlet at the lower ends of the first screen plate and the second screen plate, respectively. The bottom of the screening box is provided with a third discharge outlet.
4. The dolomite conveying process impurity removal device according to claim 3, characterized in that, The screening box has a first opening on each of its two first sides, and a door panel is connected to the first opening.
5. The dolomite conveying process impurity removal device according to claim 3, characterized in that, The screening box has two second openings on its two second sides; two connecting plates are connected between the first screen plate and the second screen plate, and a fixing plate is connected to each of the two connecting plates. The fixing plate passes through the second opening and is connected to the vibration motor through a U-shaped plate. The vibration motor and the screening box are connected and installed on the platform.
6. The dolomite conveying process impurity removal device according to claim 1, characterized in that, Both the first and second testing mechanisms include a positioning plate, an industrial camera is connected to the positioning plate, an alarm device is connected to the side of the positioning plate, and the alarm device and the industrial camera are both connected to a central control unit.
7. The dolomite conveying process impurity removal device according to claim 1, characterized in that, The anti-clogging mechanism includes a retractable hose, with a first pipe and a second pipe connected to its two ends respectively. A branch pipe is connected to the first pipe, and a high-pressure nozzle is connected to the branch pipe. The second pipe is connected to a high-pressure air source. The first pipe is connected to a first support block, the first support block is connected to a connecting block, the connecting block is connected to a push rod, and the push rod is connected to a support component.
8. The dolomite conveying process impurity removal device according to claim 7, characterized in that, The supporting component includes a horizontal support rod, on which an inclined support rod is connected. One end of the horizontal support rod and the inclined support rod are connected to the first screening mechanism and the second screening mechanism. The other end of the horizontal support rod is connected to a mounting platform. The driving component of the push rod is connected to the mounting platform. A second support block is connected to the push rod, and the second support block is connected to the horizontal support rod.
9. A dolomite conveying process impurity removal device according to claim 1, characterized in that, Both the first magnetic separation mechanism and the second magnetic separation mechanism include a package box. The package box has a passage opening on its side and an installation opening on its top. A magnetic separator roller is installed in the installation opening, and a permanent magnet is connected to the magnetic separator roller. An installation cover is connected to the package box to cover the installation opening, and a negative pressure fan is connected to the installation cover. At the installation opening, part of the magnetic separator roller is located inside the package box, and part of the magnetic separator roller is located outside the package box.
10. A dolomite conveying process impurity removal device according to claim 9, characterized in that, The package box is equipped with multiple magnetic separators.