Iron ore grinding and classifying cyclone

Abstract

The application provides an iron ore grinding and grading cyclone, relates to the technical field of grading cyclone, and comprises an upper shell, a middle shell and a lower shell, the top of the upper shell is provided with a top cover, the middle part of the side end of the upper shell is provided with a feeding pipe, the bottom of the lower shell is provided with a sand sink, and the middle part of the top cover is provided with an overflow guide pipe; the top cover, the upper shell, the middle shell and the lower shell are sequentially inserted from top to bottom and are positionally locked through a locking assembly; the locking assembly comprises three groups of locking columns which are arranged in a triangular shape at the bottom of the top cover. The locking assembly driven by the hydraulic cylinder realizes the quick synchronous locking and releasing of the top cover, the upper shell, the middle shell and the lower shell, when the middle shell and the lower shell which are easy to wear are replaced, a large number of bolts do not need to be disassembled one by one, but can be quickly disassembled and replaced, the operation is simple and fast, the labor intensity of workers is reduced, the maintenance time is reduced to the minimum, and the equipment operation rate is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of classifying hydrocyclones, specifically an iron ore grinding and classifying hydrocyclone. Background Technology

[0002] In iron ore beneficiation, grinding and classification are crucial steps, as their efficiency directly impacts subsequent beneficiation parameters and the overall economic benefits of the production line. Hydrocyclones, as the core classification equipment in the grinding loop, utilize centrifugal force to separate the slurry into an overflow rich in fine particles and an underflow rich in coarse particles (sand). The overflow enters subsequent beneficiation operations, while the underflow is returned to the mill for regrinding.

[0003] Currently, the upper, middle, and lower shells of traditional iron ore grinding and classifying hydrocyclones are mostly connected by flanges and numerous bolts. However, the inner walls of the hydrocyclone, especially the middle and lower shells, suffer severe wear when processing hard iron ore slurries, requiring frequent shutdowns for replacement. The traditional bolted connection method is cumbersome, time-consuming, and labor-intensive to disassemble and install, resulting in long equipment maintenance times and seriously affecting the continuity and efficiency of production.

[0004] To address the aforementioned problems, we propose an iron ore grinding and classifying hydrocyclone. Utility Model Content

[0005] To address the problems in the background art, this utility model provides an iron ore grinding and classifying hydrocyclone.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: An iron ore grinding and classifying hydrocyclone includes an upper shell, a middle shell, and a lower shell. The top of the upper shell is provided with a top cover, and a feed pipe is provided in the middle of the side end of the upper shell. The bottom of the lower shell is provided with a sand settling nozzle, and the middle of the top cover is provided with an overflow pipe. The top cover, upper shell, middle shell, and lower shell are inserted into each other from top to bottom and are locked by a locking assembly. The locking assembly includes three sets of locking pins, which are arranged in a triangular pattern at the bottom of the top cover and are all driven by hydraulic cylinders to move synchronously up and down. The hydraulic cylinders are fixedly installed on the top of the top cover. From top to bottom, an upper clamping plate, a middle clamping plate, and a lower clamping plate are arranged between the three sets of locking pins. An upper mounting plate is provided on the top of the upper housing, a middle mounting plate is provided on the top of the middle housing, and a lower mounting plate is provided on the top of the lower housing. The upper mounting plate is snapped onto the upper surface of the upper clamping plate, the middle mounting plate is snapped onto the upper surface of the middle clamping plate, and the lower mounting plate is snapped onto the upper surface of the lower clamping plate.

[0007] Preferably, the top cover has three sets of locking holes arranged circumferentially on its side end, and each of the three sets of locking pins has a threaded hole at its top. When the locking pin is inserted into the top cover, the threaded hole and the locking hole are in an overlapping state. By installing locking bolts in the threaded hole and the locking hole, the locking pin is limited and locked.

[0008] Preferably, the upper mounting plate is sealed and inserted into the middle of the bottom end of the top cover.

[0009] Preferably, the bottom of the upper housing is provided with an upper connecting plate, and the middle mounting plate is sealed and inserted into the middle of the bottom end of the upper connecting plate.

[0010] Preferably, a middle connecting plate is provided at the bottom of the middle housing, and the lower mounting plate is sealed and inserted into the middle of the bottom end of the middle connecting plate.

[0011] Preferably, the bottom of the upper mounting plate is provided with a plurality of upper plate positioning holes in a ring shape, and the upper end face of the upper clamping plate is provided with a plurality of upper plate positioning posts in a ring shape. The positions of the upper plate positioning holes and the upper plate positioning posts correspond to each other and are interlocked.

[0012] Preferably, the bottom of the mounting plate is provided with a plurality of central plate positioning holes in a ring shape, and the upper end surface of the clamping plate is provided with a plurality of central plate positioning posts in a ring shape. The central plate positioning holes and the central plate positioning posts are positioned corresponding to each other and are interlocked.

[0013] Preferably, the bottom of the lower mounting plate is provided with a plurality of lower plate positioning holes in a ring shape, and the upper end surface of the lower clamping plate is provided with a plurality of lower plate positioning posts in a ring shape. The positions of the lower plate positioning holes and the lower plate positioning posts correspond to each other and are interlocked.

[0014] Preferably, the upper clamping plate, the middle clamping plate, and the lower clamping plate are all movably connected to three sets of locking posts, and three sets of limiting blocks are provided at the bottom of the upper clamping plate, the middle clamping plate, and the lower clamping plate, and the limiting blocks are fixedly installed on the outer wall of the locking posts.

[0015] Compared with the prior art, the beneficial effects of this utility model are: In this solution, the locking assembly driven by the hydraulic cylinder enables the rapid and synchronous locking and releasing of the top cover, upper housing, middle housing and lower housing. When replacing the easily worn middle housing and lower housing, it is not necessary to remove a large number of bolts one by one, and the replacement can be done quickly. Its operation is simple and fast, reducing the labor intensity of workers, minimizing maintenance time, and effectively improving the equipment operating rate. In this design, the multi-section housing is clamped and fixed by plugging and clamping plates. At the same time, the positioning posts and positioning holes between the various components ensure high connection strength and good stability between the components, enhance the accuracy of splicing and installation, and ensure safety during use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded structural diagram of the upper shell, middle shell, and lower shell of this utility model; Figure 3 This is a schematic diagram of the locking component in this utility model; Figure 4 This utility model Figure 3 Enlarged view of point A in the middle; Figure 5 This is a top view of the top cover structure of this utility model.

[0017] In the diagram: 1. Upper shell; 11. Upper mounting plate; 12. Upper plate positioning hole; 13. Upper connecting plate; 2. Middle shell; 21. Middle mounting plate; 22. Middle plate positioning hole; 23. Middle connecting plate; 3. Lower shell; 31. Lower mounting plate; 32. Lower plate positioning hole; 4. Sand discharge nozzle; 5. Feed pipe; 6. Top cover; 61. Overflow guide pipe; 62. Locking hole; 63. Locking bolt; 7. Hydraulic cylinder; 8. Locking post; 81. Threaded hole; 82. Limiting block; 83. Upper clamping plate; 831. Upper plate positioning post; 84. Middle clamping plate; 841. Middle plate positioning post; 85. Lower clamping plate; 851. Lower plate positioning post. Detailed Implementation

[0018] The technical solution in this application embodiment is to solve the problems mentioned in the background art, and the overall idea is as follows: Example: Refer to Figure 1 - Figure 5 As shown, an iron ore grinding and classifying hydrocyclone of this embodiment includes an upper shell 1, a middle shell 2 and a lower shell 3. The top of the upper shell 1 is provided with a top cover 6, the middle of the side end of the upper shell 1 is provided with a feed pipe 5, the bottom of the lower shell 3 is provided with a sand settling nozzle 4, and the middle of the top cover 6 is provided with an overflow conduit 61. The top cover 6, upper shell 1, middle shell 2 and lower shell 3 are inserted into each other from top to bottom, and are locked by a locking assembly; The locking assembly includes three sets of locking pins 8, which are arranged in a triangular pattern at the bottom of the top cover 6. All three sets of locking pins 8 are driven by hydraulic cylinders 7 to move synchronously up and down. The hydraulic cylinders 7 are fixedly installed on the top of the top cover 6. From top to bottom, the three sets of locking pins 8 are arranged with an upper clamping plate 83, a middle clamping plate 84, and a lower clamping plate 85. The top of the upper housing 1 is provided with an upper mounting plate 11, the top of the middle housing 2 is provided with a middle mounting plate 21, and the top of the lower housing 3 is provided with a lower mounting plate 31. The upper mounting plate 11 is snapped onto the upper surface of the upper clamping plate 83, the middle mounting plate 21 is snapped onto the upper surface of the middle clamping plate 84, and the lower mounting plate 31 is snapped onto the upper surface of the lower clamping plate 85. The hydraulic cylinder 7 drives the three sets of locking pins 8 to move up and down. When it rises, it can squeeze and insert the top cover 6, upper shell 1, middle shell 2 and lower shell 3. When it falls, it releases the squeezing force, which facilitates the disassembly and replacement of the upper shell 1, middle shell 2 and lower shell 3.

[0019] The top cover 6 has three sets of locking holes 62 arranged circumferentially on its side end. The top of each of the three sets of locking pins 8 is provided with a threaded hole 81. When the locking pin 8 is inserted into the top cover 6, the threaded hole 81 and the locking hole 62 are in an overlapping state. By installing locking bolts 63 in the threaded hole 81 and the locking hole 62, the locking pin 8 is limited and locked. The setting of locking bolts 63 realizes the locking of the position of the locking pin 8, and prevents the hydraulic cylinder 7 from rebounding due to force.

[0020] In some examples, the upper mounting plate 11 is sealed and plugged into the bottom center of the top cover 6.

[0021] In some examples, the bottom of the upper housing 1 is provided with an upper connecting plate 13, and the middle mounting plate 21 is sealed and inserted into the middle of the bottom end of the upper connecting plate 13.

[0022] In some examples, the bottom of the middle housing 2 is provided with a middle connecting plate 23, and the lower mounting plate 31 is sealed and inserted into the middle of the bottom end of the middle connecting plate 23.

[0023] In some examples, the bottom of the upper mounting plate 11 is provided with a ring of multiple upper plate positioning holes 12, and the upper end face of the upper clamping plate 83 is provided with a ring of multiple upper plate positioning posts 831. The positions of the upper plate positioning holes 12 and the upper plate positioning posts 831 correspond to each other and are inserted into each other.

[0024] During the insertion and installation, the upper plate positioning pin 831 is inserted into the upper plate positioning hole 12 to limit and lock the connection between the upper mounting plate 11 and the upper clamping plate 83, thereby enhancing the stability and sealing of the insertion and installation.

[0025] In some examples, the bottom of the mounting plate 21 is provided with multiple sets of mounting plate positioning holes 22 in a ring shape, and the upper surface of the clamping plate 84 is provided with multiple sets of mounting plate positioning posts 841 in a ring shape. The mounting plate positioning holes 22 and the mounting plate positioning posts 841 are positioned corresponding to each other and are inserted into each other.

[0026] During the plug-in installation, the middle plate positioning post 841 is inserted into the middle plate positioning hole 22 to limit and lock the connection between the middle mounting plate 21 and the middle clamping plate 84, thereby enhancing the stability and sealing of the plug-in connection.

[0027] In some examples, the bottom of the lower mounting plate 31 is provided with a ring of multiple sets of lower plate positioning holes 32, and the upper end surface of the lower clamping plate 85 is provided with a ring of multiple sets of lower plate positioning posts 851. The positions of the lower plate positioning holes 32 and the lower plate positioning posts 851 correspond to each other and are inserted into each other.

[0028] During the insertion and installation, the lower plate positioning pin 851 is inserted into the lower plate positioning hole 32 to limit and lock the connection between the lower mounting plate 31 and the lower clamping plate 85, thereby enhancing the stability and sealing of the insertion and installation.

[0029] In some examples, the upper clamping plate 83, the middle clamping plate 84, and the lower clamping plate 85 are all movably connected to three sets of locking pins 8, allowing their positions to be adjusted up and down, thereby facilitating the fitting of the upper housing 1, the middle housing 2, and the lower housing 3.

[0030] Furthermore, three sets of limiting blocks 82 are provided at the bottom of the upper clamping plate 83, the middle clamping plate 84, and the lower clamping plate 85. The limiting blocks 82 are fixedly installed on the outer wall of the locking post 8. The limiting blocks 82 serve to limit the movement and provide stable support during sealing and insertion, thereby enhancing the stability of the insertion and installation between the various components.

[0031] In some examples, a sealing ring is provided between each connecting component of this invention to improve the sealing performance of the connection between the components.

[0032] The working principle of this utility model is as follows: When it is necessary to assemble the upper housing 1, the middle housing 2 and the lower housing 3, firstly, the three sets of hydraulic cylinders 7 are started simultaneously to push the three sets of locking pins 8 downward to increase the installation space. Then, by moving the positions of the upper clamping plate 83, the middle clamping plate 84 and the lower clamping plate 85 up and down, it is convenient for the staff to put the upper housing 1, the middle housing 2 and the lower housing 3 into them in turn and install them together. After the upper housing 1, middle housing 2 and lower housing 3 are all inserted and installed, the three sets of hydraulic cylinders 7 drive the three sets of locking pins 8 to rise synchronously, so that the top of the upper housing 1 is inserted into the bottom of the top cover 6 for insertion and installation, thereby completing the combined splicing installation. Furthermore, in order to improve stability during operation, locking bolts 63 can be installed in the locking hole 62 and the threaded hole 81 to limit and lock the position of the locking pin 8, thereby enhancing the stability of the three sets of locking pins 8 in clamping and installing the upper housing 1, the middle housing 2 and the lower housing 3. Conversely, when it is necessary to disassemble and maintain the upper housing 1, the middle housing 2, and the lower housing 3, simply loosen the three sets of locking bolts 63, and then push them downwards using the hydraulic cylinder 7 to release the clamps on the upper housing 1, the middle housing 2, and the lower housing 3. At this time, the staff can flexibly disassemble, maintain, or replace the upper housing 1, the middle housing 2, and the lower housing 3.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A hydrocyclone for iron ore grinding and classification, characterized in that, It includes an upper shell (1), a middle shell (2) and a lower shell (3). The top of the upper shell (1) is provided with a top cover (6), the middle of the side end of the upper shell (1) is provided with a feed pipe (5), the bottom of the lower shell (3) is provided with a sand sink (4), and the middle of the top cover (6) is provided with an overflow pipe (61). The top cover (6), upper shell (1), middle shell (2) and lower shell (3) are inserted into each other from top to bottom and are locked by a locking assembly; The locking assembly includes three sets of locking pins (8). The three sets of locking pins (8) are arranged in a triangular pattern at the bottom of the top cover (6), and all of them are driven by hydraulic cylinders (7) to move synchronously up and down. The hydraulic cylinders (7) are fixedly installed on the top of the top cover (6). The three sets of locking pins (8) are arranged from top to bottom as an upper clamping plate (83), a middle clamping plate (84) and a lower clamping plate (85). The top of the upper housing (1) is provided with an upper mounting plate (11), the top of the middle housing (2) is provided with a middle mounting plate (21), the top of the lower housing (3) is provided with a lower mounting plate (31), the upper mounting plate (11) is snapped onto the upper surface of the upper clamping plate (83), the middle mounting plate (21) is snapped onto the upper surface of the middle clamping plate (84), and the lower mounting plate (31) is snapped onto the upper surface of the lower clamping plate (85); The top cover (6) has three sets of locking holes (62) arranged circumferentially on its side end. The top of each of the three sets of locking pins (8) is provided with a threaded hole (81). When the locking pin (8) is inserted into the top cover (6), the threaded hole (81) and the locking hole (62) are in an overlapping state. The locking pin (8) is limited and locked by installing locking bolts (63) in the threaded hole (81) and the locking hole (62).

2. The iron ore grinding and classifying hydrocyclone according to claim 1, characterized in that, The upper mounting plate (11) is sealed and inserted into the middle of the bottom end of the top cover (6).

3. The iron ore grinding and classifying hydrocyclone according to claim 2, characterized in that, The bottom of the upper housing (1) is provided with an upper connecting plate (13), and the middle mounting plate (21) is sealed and inserted into the middle of the bottom end of the upper connecting plate (13).

4. The iron ore grinding and classifying hydrocyclone according to claim 3, characterized in that, The bottom of the middle housing (2) is provided with a middle connecting plate (23), and the lower mounting plate (31) is sealed and inserted into the middle of the bottom end of the middle connecting plate (23).

5. The iron ore grinding and classifying hydrocyclone according to claim 4, characterized in that, The bottom of the upper mounting plate (11) is provided with a ring of multiple upper plate positioning holes (12), and the upper end face of the upper clamping plate (83) is provided with a ring of multiple upper plate positioning posts (831). The positions of the upper plate positioning holes (12) and the upper plate positioning posts (831) correspond to each other and are inserted into each other.

6. The iron ore grinding and classifying hydrocyclone according to claim 5, characterized in that, The bottom of the mounting plate (21) is provided with a ring of multiple sets of mounting plate positioning holes (22), and the upper surface of the clamping plate (84) is provided with a ring of multiple sets of mounting plate positioning posts (841). The mounting plate positioning holes (22) and the mounting plate positioning posts (841) are positioned corresponding to each other and are inserted into each other.

7. The iron ore grinding and classifying hydrocyclone according to claim 6, characterized in that, The bottom of the lower mounting plate (31) is provided with a ring of multiple sets of lower plate positioning holes (32), and the upper end surface of the lower clamping plate (85) is provided with a ring of multiple sets of lower plate positioning posts (851). The positions of the lower plate positioning holes (32) and the lower plate positioning posts (851) correspond to each other and are inserted into each other.

8. The iron ore grinding and classifying hydrocyclone according to claim 7, characterized in that, The upper clamping plate (83), the middle clamping plate (84) and the lower clamping plate (85) are all movably connected to the three sets of locking posts (8). The bottom of the upper clamping plate (83), the middle clamping plate (84) and the lower clamping plate (85) are provided with three sets of limiting blocks (82), and the limiting blocks (82) are fixedly installed on the outer wall of the locking posts (8).

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