Phosphorite screening equipment and process for beneficiation engineering

Abstract

The invention relates to the technical field of beneficiation engineering, in particular to phosphorite screening equipment for beneficiation engineering and a screening technology.The phosphorite screening equipment comprises a screening box, the top of the screening box is rotationally sleeved with a rotating shaft, the two sides of the rotating shaft are fixedly sleeved with eccentric blocks, the two sides of the screening box are fixedly provided with buffer bases, and one sides of the buffer bases are provided with mounting and dismounting mechanisms; a limiting inserting plate is slidably mounted in the mounting shell, one end of the limiting inserting plate is rotationally connected with one end of a connecting rod, the other end of the connecting rod is rotationally connected with one end of a push rod, the other end of the push rod is fixedly sleeved with a driving sleeve, and the upper side of the driving sleeve is fixedly connected with a rack; a dustproof plate is fixedly connected to one side of the connecting plate, a screen plate is installed on the lower side of the dustproof plate, and limiting grooves are formed in the two sides of the screen plate. And through the arrangement of the mounting and dismounting mechanism, the dustproof plate and the screen plate can be conveniently and quickly dismounted, so that the mounting and dismounting efficiency is improved, and meanwhile, the mounting stability of the dustproof plate and the screen plate is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mineral processing engineering, and in particular to a phosphate ore screening device and a screening process used in mineral processing engineering. Background Art

[0002] Phosphate ore screening refers to the process of classifying phosphate ore according to particle size through specific mechanical equipment during phosphate ore processing. This process is of great significance for improving the utilization efficiency of phosphate ore resources and reducing subsequent processing costs.

[0003] In the prior art, during the coarse crushing of phosphate ore, the phosphate ore is often pre-screened by a circular vibrating screen, and the screen plate on the circular vibrating screen is generally fixed in the screen box with simple bolts. At the same time, in order to reduce the large amount of smoke and dust dissipated during the screening vibration process, a dustproof plate is also bolted to be arranged above the screen and fixed to the screen box through multiple sets of bolts.

[0004] However, during the screening process, the material constantly vibrates on the screen plate, and the material needs to constantly contact and rub against the screen plate, so the screen plate is easily damaged. If the damaged screen plate is not replaced in time, the screened material will be uneven in coarseness. For this reason, in the process of removing the screen plate, it is necessary to use tools to first remove the bolts or screws on the dustproof plate one by one, and then remove the bolts or screws on the screen plate. Not only is the operation more laborious and reduces the installation efficiency, but individual fasteners may not be completely tightened and fall off, thereby causing the entire screen plate or dustproof plate to become loose, causing a safety hazard. For this reason, the present invention proposes a phosphate ore screening equipment and screening process for mineral processing engineering to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a phosphate ore screening device and a screening process for ore dressing engineering to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a phosphate ore screening equipment for mineral processing engineering, comprising: a screen box, a rotating sleeve on the top of the screen box is provided with a rotating shaft, fixed sleeves on both sides of the rotating shaft are provided with eccentric blocks, and buffer seats are fixedly installed on both sides of the screen box.

[0007] A mounting and disassembly mechanism is arranged on one side of the buffer seat, and the mounting and disassembly mechanism comprises a mounting shell, in which a limit plug plate is slidably installed, one end of the limit plug plate is rotatably connected to one end of a connecting rod, the other end of the connecting rod is rotatably connected to one end of a push rod, and a driving sleeve is fixedly arranged on the other end of the push rod.

[0008] The upper side of the driving sleeve is fixedly connected to the rack, a threaded rod is connected to the inner thread of the rack, a gear is meshed on one side of the rack, a T-shaped piece is installed in the gear, a connecting plate is detachably connected to the upper side of the T-shaped piece, a dustproof plate is fixedly connected to one side of the connecting plate, a screen plate is installed on the lower side of the dustproof plate, and limiting grooves are provided on both sides of the screen plate.

[0009] Preferably, the mounting shell is welded and fixed to the side wall of the screen box, an L-shaped plate is fixedly connected to one side of the bottom of the mounting shell, the L-shaped plates are arranged in a linear array, one side of the L-shaped plate is fixedly connected to a limiting block, and the push rod sliding sleeve is arranged in the limiting block.

[0010] Preferably, a guide block is fixedly connected to the other side of the L-shaped plate, the guide block is slidably connected to the bottom of the limiting plug plate, one end of the limiting plug plate is slidably plugged into the limiting groove, and the other end of the limiting plug plate is rotatably connected to one end of the connecting rod through a large pin shaft.

[0011] Preferably, the other end of the connecting rod is rotatably connected to one end of the push rod through a small pin, the L-shaped plate and the upper surface of the limit block are fixedly connected to the limit bar, the bottom of the rack is slidably connected to the limit bar, the threaded rods are arranged in a linear array, and the ends of the threaded rods are fixedly connected to the connecting shaft.

[0012] Preferably, a fixed sleeve at one end of the connecting shaft at the top is provided with a worm wheel, a worm is meshed with one side of the worm wheel, a worm rotating sleeve is arranged in a support seat, one side of the support seat is fixedly connected to the mounting shell, an adjusting handwheel is provided on the fixed sleeve at one end of the worm, a limiting ring is provided on the fixed sleeve at one end of the connecting shaft at the bottom, and one side of the rack is meshed with the gear for transmission.

[0013] Preferably, a T-shaped piece is fixedly sleeved inside the gear, and the bottom of the T-shaped piece is rotatably sleeved in the mounting shell.

[0014] Preferably, the top of the T-shaped piece is slidably connected to the upper surface of the connecting plate, and arc-shaped holes begin to be provided on the upper surface of the connecting plate, and the arc-shaped holes are arranged in a linear array.

[0015] Preferably, a support column is fixedly connected to the lower surface of the connecting plate, the arc-shaped hole is adapted to the top of the T-shaped piece, and baffles are fixedly connected to both sides of the upper surface of the screen plate. A screening process of phosphate ore screening equipment for ore dressing engineering comprises the following steps: S1. First, place the screen plate between the inner sides of the screen box so that the limit grooves on its side walls are aligned with the limit plugs; S2. Next, the dustproof plate is placed on the upper side of the mounting shell by slidingly engaging the T-shaped piece through the arc-shaped hole on the connecting plate; S3. Then, the rack is driven to move by the rotation of the threaded rod, so that the rack moves through the driving sleeve, and the driving sleeve drives the push rod to move. Under the rotation connection of the connecting rod, the push rod makes the limit plug plate move horizontally until it is plugged into the limit groove provided in the screen plate, thereby fixing the screen plate. At the same time, the rack is meshed with the gear for transmission, and the gear drives the T-piece to rotate, thereby fixing the connecting plate and then the dustproof plate; S4. Finally, by starting the vibrator fixedly connected to one end of the rotating shaft through a coupling, the rotating shaft drives the eccentric block to rotate, thereby stimulating the screen box to produce a circular motion with a certain amplitude, and the material is screened.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The worm gear and the worm are meshed with each other, and the worm gear has a self-locking property, which indirectly ensures the stability of the connection between the limit plug plate and the limit slot, and avoids the problem that individual fasteners are not fully tightened and thus fall off, thereby causing the entire screen plate or dustproof plate to be loosely connected, thereby creating a safety hazard. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic top view of the overall structure of the present invention; Figure 3 It is a bottom view schematic diagram of the overall structure of the present invention; Figure 4 It is a schematic diagram of the internal structure of the present invention; Figure 5 It is a top view schematic diagram of the internal structure of the present invention; Figure 6 It is a bottom view schematic diagram of the internal structure of the present invention.

[0018] In the figure: 1. screen box; 2. rotating shaft; 3. eccentric block; 4. buffer seat; 5. installation and disassembly mechanism; 6. mounting shell; 7. limit plug plate; 8. connecting rod; 9. push rod; 10. driving sleeve; 11. rack; 12. threaded rod; 13. gear; 14. T-shaped piece; 15. connecting plate; 16. dustproof plate; 17. screen plate; 18. limit groove; 19. L-shaped plate; 20. limit block; 21. guide block; 22. limit strip; 23. connecting shaft; 24. worm gear; 25. worm; 26. support seat; 27. adjusting hand wheel; 28. limit ring; 29. ​​arc hole; 30. support column; 31. baffle. DETAILED DESCRIPTION

[0019] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Example 1: Please refer to Figures 1 to 6 The present invention provides a technical solution: a phosphate ore screening equipment and screening process for ore dressing engineering, comprising: a screen box 1, a rotating shaft 2 is provided on the top of the screen box 1, eccentric blocks 3 are provided on both sides of the rotating shaft 2, buffer seats 4 are fixedly installed on both sides of the screen box 1, and a mounting and disassembly mechanism 5 is provided on one side of the buffer seat 4. The mounting and disassembly mechanism 5 comprises a mounting shell 6, a limited plug plate 7 is slidably installed in the mounting shell 6, one end of the limited plug plate 7 is rotatably connected to one end of a connecting rod 8, and the other end of the connecting rod 8 is connected to a push rod 9 is rotatably connected at one end, and a driving sleeve 10 is fixedly sleeved at the other end of the push rod 9. The upper side of the driving sleeve 10 is fixedly connected to a rack 11. A threaded rod 12 is sleeved on the inner thread of the rack 11. A gear 13 is meshed on one side of the rack 11. A T-shaped piece 14 is installed in the gear 13. A connecting plate 15 is detachably connected to the upper side of the T-shaped piece 14. A dustproof plate 16 is fixedly connected to one side of the connecting plate 15. A screen plate 17 is installed on the lower side of the dustproof plate 16. Limiting grooves 18 are provided on both sides of the screen plate 17.

[0021] The rotating shaft 2 is rotatably sleeved on the top of the screen box 1 and supported by the screen box 1. Eccentric blocks 3 are fixedly sleeved on both sides of the rotating shaft 2. The output end of the exciter is fixedly connected to one end of the rotating shaft 2 through a coupling, so that the eccentric blocks 3 rotate at high speed, generate a large centrifugal inertia force, and stimulate the screen box 1 to produce a circular motion of a certain amplitude, thereby realizing the screening of the material. During the shaking process of the screen box 1, the buffer seats 4 fixedly installed on both sides thereof are used for buffering. Before screening, the screen plate 17 is placed between the inner sides of the screen box 1 so that the limit grooves 18 opened on both sides are aligned with the limit plug-in plate 7. Through the sliding connection between the T-piece 14 and the connecting plate 15, the dustproof plate 16 is placed above the mounting shell 6. At this time, the rack 11 is driven to move by the rotation of the threaded rod 12, and the rack 11 thereby drives the drive sleeve 10 fixedly connected thereto to move. The drive sleeve 10 thereby pulls the push rod 9 to push the connecting rod 8 to move. Under the rotation connection action of the connecting rod 8, the connecting rod 8 drives the limit plug-in plate 7 to move laterally until the limit The positioning plug plate 7 is inserted into the limiting groove 18, thereby fixing the screen plate 17, and the rack 11 is meshed with the gear 13 while moving, so that the gear 13 drives the T-shaped piece 14 to rotate, and then the T-shaped piece 14 clamps the connecting plate 15, and then fixes the dustproof plate 16, and finally completes the installation of the dustproof plate 16 and the screen plate 17. When the screen plate 17 is damaged and needs to be replaced, the limiting plug plate 7 can be indirectly withdrawn from the limiting groove 18 by reverse driving the threaded rod 12, and the T-shaped piece 14 releases the The limit position of the connecting plate 15 facilitates the quick disassembly of the screen plate 17 and the dustproof plate 16, avoiding the need to use tools to first remove the bolts or screws on the dustproof plate 16 one by one, and then remove the bolts or screws on the screen plate 17 during the removal of the screen plate 17. Not only is the operation more laborious and reduces the installation and disassembly efficiency, but it also avoids the problem that individual fasteners are not fully tightened and thus fall off, thereby causing the entire screen plate 17 or the dustproof plate 16 to become loose and cause a safety hazard.

[0022] Embodiment 2: On the basis of embodiment 1, the mounting shell 6 is welded and fixed to the side wall of the screen box 1, and an L-shaped plate 19 is fixedly connected to one side of the bottom of the mounting shell 6. The L-shaped plates 19 are arranged in a linear array, and one side of the L-shaped plate 19 is fixedly connected to a limiting block 20. The push rod 9 is slidably sleeved in the limiting block 20. The mounting shell 6 is welded and installed on the inner side wall of the screen box 1, and an L-shaped plate 19 is fixedly connected to the bottom of the mounting shell 6. One side of the L-shaped plate 19 fixedly supports the limiting block 20, and the limiting block 20 limits the push rod 9 when sliding. A guide block 21 is fixedly connected to the other side of the L-shaped plate 19, and the guide block 21 is slidably connected to the bottom of the limiting plug plate 7. One end of the limiting plug plate 7 is slidably plugged into the limiting groove 18, and the other end of the limiting plug plate 7 is rotatably connected to one end of the connecting rod 8 through a large pin shaft, and the guide block 21 limits the limiting plug plate 7, so that the limiting plug plate 7 can slide laterally, and the limiting plug plate 7 is adapted to the limiting groove 18.

[0023] The other end of the connecting rod 8 is rotatably connected to one end of the push rod 9 through a small pin shaft, and the upper surfaces of the L-shaped plate 19 and the limit block 20 are fixedly connected to the limit bar 22. The bottom of the rack 11 is slidably connected to the limit bar 22, and the threaded rod 12 is arranged in a linear array. The end of the threaded rod 12 is fixedly connected to the connecting shaft 23, and one end of the connecting rod 8 is rotatably connected to the limit plug plate 7 through a large pin shaft. The other end of the connecting rod 8 is rotatably connected to one end of the push rod 9 through a small pin shaft. The other end of the push rod 9 is fixedly sleeved with a driving sleeve 10, and the limit bar 22 is fixedly connected to the upper surface of the L-shaped plate 19 and the limit block 20, so that the limit bar 22 set limits the rack 11, and the rack 11 and the threaded rod 12 are arranged in a linear array, and the number of arrangements is the same. An internal thread is provided in the rack 11, which is connected to the threaded rod 12 by Lu Vaughan, and the connecting shaft 23 fixes and connects a plurality of threaded rods 12. One end of the connecting shaft 23 is fixedly sleeved with a worm gear 24, and one side of the worm gear 24 is meshed with a worm 25. The worm 25 is rotatably sleeved in a support seat 26, and one side of the support seat 26 is fixedly connected to the mounting shell 6. One end of the worm 25 is fixedly sleeved with an adjusting handwheel 27, and one end of the connecting shaft 23 at the bottom is fixedly sleeved with a limiting ring 28. One side of the rack 11 is meshed with the gear 13 for transmission. The connecting shaft 23 located at the top of the screen box 1 is rotatably sleeved on the mounting shell 6, and one end of it is fixedly connected to the threaded rod 12, and the other end of it is fixedly sleeved with a worm gear 24. The worm gear 24 meshes with the worm 25 for transmission. The worm 25 is limitedly supported by a support seat 26 fixedly installed on the mounting shell 6, and one end of the worm 25 is fixedly installed with an adjusting handwheel 27. One end of the connecting shaft 23 located at the bottom of the screen box 1 is fixedly connected to the threaded rod 12, and the other end is fixedly sleeved with a limiting ring 28 for limiting.

[0024] When the screen plate 17 needs to be installed, the screen plate 17 is first placed on the inner side of the screen box 1 so that the limit grooves 18 opened on both sides thereof are aligned with the position of the limit plug plate 7. Then, the adjusting hand wheel 27 is turned to drive the adjusting hand wheel 27 to rotate the worm 25, and the worm 25 is meshed with the worm wheel 24 for transmission, so that the worm wheel 24 drives the connecting shaft 23 fixedly sleeved therein to rotate, so that the connecting shaft 23 drives the threaded rod 12 fixedly connected thereto to rotate, thereby driving the remaining connecting shafts 23 and the threaded rod 12 to rotate, and the threaded rod 12 and the rack 11 are connected to each other. The rack 11 is threadedly connected, and the side of the rack 11 passes through the gear 13, and its bottom is limited by the limit bar 22, so that the rack 11 is driven to move under the rotation of the threaded rod 12, so that the rack 11 slides toward the bottom of the screen box 1, and the rack 11 is fixedly connected between the drive sleeve 10 and the push rod 9, thereby driving one end of the push rod 9 to move synchronously. The push rod 9 moves obliquely downward under the limit of the limit block 20, so that the other end of the push rod 9 drives one end of the connecting rod 8 to move through the rotation connection of the small pin shaft, and the other end of the connecting rod 8 is connected to the rotation of the large pin shaft. Pull the limit plug plate 7 to move, and the limit plug plate 7 slides laterally under the limit guiding action of the guide block 21, so that it moves in the direction close to the limit slot 18 until the plug-in end of the limit plug plate 7 is plugged into the limit slot 18. At the same time, the limit plug plates 7 are arranged in a linear array, so that the screen plate 17 is fixed by plugging several limit plug plates 7 into the limit slot 18 at the same time. In addition, the worm gear 24 and the worm 25 are self-locking after meshing, thereby indirectly ensuring the stability of the limit plug plate 7 and the limit slot 18 plug-in, avoiding the problem of individual Other fasteners are not completely tightened and thus fall off, causing the entire screen plate 17 or the dustproof plate 16 to become loose, creating a safety hazard; when the screen plate 17 is damaged and needs to be disassembled and replaced, the limiting plug plate 7 can be indirectly made to slide out of the limiting groove 18 by simply rotating the adjusting hand wheel 27 in the reverse direction, thereby releasing the lock on the screen plate 17; through the cooperation of the above-mentioned components, there is no need to remove the screws or screws and parts when disassembling and installing the screen plate 17; only the adjusting hand wheel 27 can be used to install and disassemble the screen plate 17, thereby facilitating its installation and maintenance.

[0025] Embodiment 3: A T-shaped piece 14 is fixedly sleeved in the gear 13, and the bottom of the T-shaped piece 14 is rotatably sleeved in the mounting shell 6. The bottom of the T-shaped piece 14 is rotatably sleeved in the mounting shell 6, and the middle part of the T-shaped piece 14 is fixedly sleeved in the gear 13. The top of the T-shaped piece 14 is a flat plate with an arc-shaped end. The top of the T-shaped piece 14 is slidably connected to the upper surface of the connecting plate 15. There are arc holes 29 on the upper surface of the connecting plate 15, and the arc holes 29 are arranged in a linear array. The connecting plate 15 is adapted to the arc flat plate at the top of the T-shaped piece 14 through the arc holes 29. A support column 30 is fixedly connected to the lower surface of the connecting plate 15, and the arc holes 29 are adapted to the top of the T-shaped piece 14. Baffles 31 are fixedly connected on both sides of the upper surface of the screen plate 17. The connecting plate 15 is fixedly supported by the support column 30, and the baffles 31 are fixedly connected on both sides of the upper surface of the screen plate 17, so that the baffles 31 are used to block the material to prevent the material from splashing too high and damaging the dustproof plate 16.

[0026] After the screen plate 17 is placed in position, when the dustproof plate 16 needs to be installed, the dustproof plate 16 is placed on the upper side of the mounting shell 6, and the arc hole 29 opened on the connecting plate 15 is slidably matched with the T-shaped piece 14, so that the support column 30 fixedly connected to the bottom of the connecting plate 15 is abutted against the upper surface of the mounting shell 6, and the rack 11 is driven to slide under the limit of the limit bar 22 during the rotation of the adjusting hand wheel 27, so that the rack 11 and the gear 13 are meshed and transmitted, and the gear 13 is rotated under the limit of the mounting shell 6, and the gear 13 drives the T-shaped piece 14 to rotate, and the T-shaped piece 14 rotates the flat plate at its top end The dustproof plate 16 is fixed at a certain angle so that it no longer matches the arc hole 29, thereby realizing the clamping of the connecting plate 15, thereby fixing the dustproof plate 16, and finally realizing the synchronous installation of the dustproof plate 16 and the screen plate 17. When the adjusting hand wheel 27 is rotated in the opposite direction, the top of the T-piece 14 can be rotated to coincide with the arc hole 29, and the screen plate 17 and the dustproof plate 16 can be disassembled synchronously, avoiding the trouble of disassembling the dustproof plate 16 first and then disassembling the screen plate 17 when the screen plate 17 needs to be disassembled, reducing the operation steps, improving the efficiency of disassembly and installation, reducing the labor intensity, and improving the practicality and convenience of the entire device.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A phosphate ore screening device for use in a mineral processing project, comprising a screen box (1), characterized in that: include: A rotating sleeve at the top of the screen box (1) is provided with a rotating shaft (2), fixed sleeves on both sides of the rotating shaft (2) are provided with eccentric blocks (3), and buffer seats (4) are fixedly installed on both sides of the screen box (1); A mounting and disassembly mechanism (5) is provided on one side of the buffer seat (4), the mounting and disassembly mechanism (5) comprising a mounting shell (6), a limit plate (7) being slidably mounted in the mounting shell (6), one end of the limit plate (7) being rotatably connected to one end of a connecting rod (8), the other end of the connecting rod (8) being rotatably connected to one end of a push rod (9), and the other end of the push rod (9) being fixedly sleeved with a drive sleeve (10); The upper side of the driving sleeve (10) is fixedly connected to the rack (11); the rack (11) is internally threaded with a threaded rod (12); one side of the rack (11) is meshed with a gear (13); a T-shaped piece (14) is installed in the gear (13); the upper side of the T-shaped piece (14) is detachably connected to a connecting plate (15); one side of the connecting plate (15) is fixedly connected to a dustproof plate (16); a screen plate (17) is installed on the lower side of the dustproof plate (16); and limiting grooves (18) are provided on both sides of the screen plate (17).

2. The phosphate ore screening equipment for mineral processing engineering according to claim 1, characterized in that: The mounting shell (6) is welded and fixed to the side wall of the screen box (1); an L-shaped plate (19) is fixedly connected to one side of the bottom of the mounting shell (6); the L-shaped plates (19) are arranged in a linear array; one side of the L-shaped plates (19) is fixedly connected to a limiting block (20); and the push rod (9) is slidably sleeved in the limiting block (20).

3. The phosphate ore screening equipment for mineral processing engineering according to claim 2, characterized in that: The other side of the L-shaped plate (19) is fixedly connected with a guide block (21), the guide block (21) is slidably connected to the bottom of the limiting plug plate (7), one end of the limiting plug plate (7) is slidably plugged into the limiting groove (18), and the other end of the limiting plug plate (7) is rotatably connected to one end of the connecting rod (8) via a large pin shaft.

4. The phosphate ore screening equipment for ore dressing engineering according to claim 3, characterized in that: The other end of the connecting rod (8) is rotatably connected to one end of the push rod (9) via a small pin shaft; the upper surfaces of the L-shaped plate (19) and the limit block (20) are fixedly connected to the limit bar (22); the bottom of the rack (11) is slidably connected to the limit bar (22); the threaded rods (12) are arranged in a linear array; and the ends of the threaded rods (12) are fixedly connected to the connecting shaft (23).

5. The phosphate ore screening equipment for ore dressing engineering according to claim 4, characterized in that: A worm wheel (24) is fixedly sleeved at one end of the connecting shaft (23) at the top, a worm (25) is meshed with one side of the worm wheel (24), the worm (25) is rotatably sleeved in a support seat (26), one side of the support seat (26) is fixedly connected to the mounting shell (6), an adjusting hand wheel (27) is fixedly sleeved at one end of the worm (25), a limiting ring (28) is fixedly sleeved at one end of the connecting shaft (23) at the bottom, and one side of the rack (11) is meshed with the gear (13) for transmission.

6. The phosphate ore screening equipment for ore dressing engineering according to claim 5, characterized in that: A T-shaped piece (14) is fixedly sleeved inside the gear (13), and the bottom of the T-shaped piece (14) is rotatably sleeved inside the mounting shell (6).

7. The phosphate ore screening equipment for ore dressing engineering according to claim 6, characterized in that: The top of the T-shaped piece (14) is slidably connected to the upper surface of the connecting plate (15), and arc-shaped holes (29) begin to be formed on the upper surface of the connecting plate (15), and the arc-shaped holes (29) are arranged in a linear array.

8. The phosphate ore screening equipment for ore dressing engineering according to claim 7, characterized in that: The lower surface of the connecting plate (15) is fixedly connected to a support column (30), the arc-shaped hole (29) is adapted to the top of the T-shaped piece (14), and baffles (31) are fixedly connected to both sides of the upper surface of the screen plate (17).

9. A screening process using the phosphate ore screening equipment for mineral processing engineering according to any one of claims 1 to 8, characterized in that: The steps are as follows: S1. First, place the screen plate (17) between the inner sides of the screen box (1) so that the limiting groove (18) provided on the side wall thereof is aligned with the limiting plug plate (7); S2. Next, the dustproof plate (16) is placed on the upper side of the mounting shell (6) by slidingly engaging the dustproof plate (16) with the T-shaped piece (14) through the arc-shaped hole (29) opened on the connecting plate (15); S3. Then, the rack (11) is driven to move by the rotation of the threaded rod (12), so that the rack (11) moves through the driving sleeve (10), so that the driving sleeve (10) drives the push rod (9) to move, and the push rod (9) moves the limit plug plate (7) laterally under the rotation connection of the connecting rod (8) until it is inserted into the limit groove (18) provided in the screen plate (17), thereby fixing the screen plate (17), and at the same time, the rack (11) is meshed with the gear (13) for transmission, and the gear (13) drives the T-shaped piece (14) to rotate, thereby fixing the connecting plate (15), and then fixing the dustproof plate (16); S4. Finally, by starting the vibrator fixedly connected to one end of the rotating shaft (2) through a coupling, the rotating shaft (2) drives the eccentric block (3) to rotate, thereby exciting the screen box (1) to produce a circular motion with a certain amplitude, and the material is screened.

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