Phosphate ore raw material grinding device

Abstract

The utility model is suitable for the technical field of ore grinding equipment, and provides a phosphate ore raw material grinding device which comprises an equipment body, the equipment body comprises a workbench, a material containing disc and a dustproof cover, and the dustproof cover is arranged on the upper end face of the material containing disc; the material containing disc is provided with a material containing cavity, a mounting cavity, a first discharging hole and a moving groove. The discharging structure comprises a rotating ring, a connecting plate, a worm and a worm gear, the rotating ring is provided with a connecting column, and the rotating ring is provided with a second discharging hole; according to the feeding device, a worker rotates the worm, the worm gear and the connecting plate rotate synchronously, and a gap is formed between the second discharging hole and the first discharging hole; the material containing disc rotates, and under the action of centrifugal force, the phosphate ore with the granularity meeting the gap size is thrown into the discharging cavity; and the steps are repeated until all the ground phosphate ores meeting the granularity are thrown into the discharging cavity through the gaps, so that the existence of a part of too large or too small particles is avoided, and stable and accurate granularity control is realized.

Description

Technical Field

[0001] This utility model belongs to the technical field of ore grinding equipment, and in particular relates to a phosphate rock raw material grinding device. Background Technology

[0002] Phosphate rock is an important non-metallic mineral resource, whose main component is phosphate minerals. It usually exists in the form of dense masses or earthy forms that are gray, brown, yellow or green, and is mainly formed by the geological processes of phosphorus-containing sediments or phosphate rocks. Phosphate rock is usually obtained through open-pit or underground mining. After mining, it needs to undergo pretreatment such as crushing and grinding, and then chemical processing according to different uses.

[0003] During the grinding process of mined phosphate rock, the raw material particle size may be uneven and the hardness may vary, which poses a challenge to achieving stable and accurate final particle size control. Although existing grinding devices can significantly reduce particle size, it is difficult to accurately grind all materials to a very small particle size range. There will always be some particles that are too large or too small. Therefore, a phosphate rock raw material grinding device is needed to solve the above problems. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide a phosphate rock raw material grinding device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A phosphate rock raw material grinding device, comprising:

[0007] The main body of the equipment includes a workbench, a material tray, and a dust cover. The material tray is rotatably mounted on the workbench, and the dust cover is detachably mounted on the upper surface of the material tray.

[0008] The material tray has a material holding cavity inside, an installation cavity on the side wall of the material tray, a plurality of spaced first discharge holes on the inner wall of the installation cavity, and a pair of oppositely arranged moving grooves on the bottom wall of the installation cavity.

[0009] A grinding structure, the grinding structure including a grinding roller, the grinding roller being rotatably disposed in the material holding cavity;

[0010] The discharge structure includes a rotating ring, a connecting plate, a worm gear, and a worm wheel. The lower end face of the rotating ring has a pair of opposing connecting posts. Both ends of the connecting plate are connected to the pair of connecting posts. The worm wheel is fixedly installed on the connecting plate. The pair of connecting posts are symmetrically distributed around the worm wheel. The worm gear meshes with the worm wheel. The rotating ring is installed in the mounting cavity and has multiple spaced second discharge holes with the same diameter as the first discharge hole. The connecting posts are movably disposed in the moving groove. The connecting plate and the worm gear are rotatably disposed on the lower end face of the material receiving tray.

[0011] In a further technical solution, the discharge structure also includes a gear ring, a gear, and a discharge motor. The worktable has multiple mounting holes. The gear ring meshes with the gear. The output shaft of the discharge motor is connected to the gear. The gear is rotatably mounted on the worktable. The gear ring is located on the lower end face of the material tray. The gear ring and the gear are positioned between the multiple mounting holes.

[0012] In a further technical solution, the dust cover has mounting holes, and the grinding structure also includes a drive rod, a moving rod, a rotating column, and a grinding motor. The moving rod is fixedly installed on the worktable, the upper end of the rotating column is fixedly installed on the moving rod, the grinding roller is fixedly installed on the lower end of the rotating column, the output shaft of the grinding motor is connected to the rotating column, and the rotating column is inserted into the insertion hole.

[0013] In a further technical solution, the material tray has a discharge chamber and an installation door on its outer side, and the installation door is detachably installed on the side wall of the material tray that forms the discharge chamber.

[0014] A further technical solution is that the upper end of the material tray has a limiting hole, and the lower end of the dust cover has a limiting post, the limiting post being adapted to the limiting hole.

[0015] In a further technical solution, the workbench has a rotating groove, and the lower end face of the material tray is provided with a moving column and a limiting plate. Multiple moving columns are provided, and the multiple moving columns are distributed in a circumferentially spaced manner. The limiting plate is connected to the multiple moving columns, and the lower end of the moving column is rotatably disposed in the rotating groove. The limiting plate is disposed at the upper end of the workbench that forms the rotating groove.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This invention features a discharge structure comprising a rotating ring, a connecting plate, a worm gear, and a worm wheel. The rotating ring has connecting columns, and the two ends of the connecting plate are connected to the connecting columns. The worm wheel is fixedly installed on the connecting plate, and the rotating ring is installed in the mounting cavity. The rotating ring has a second discharge hole. When the worker rotates the worm gear, the worm wheel and the connecting plate rotate synchronously until the second discharge hole and the first discharge hole form a gap that meets the required size. The feeding tray rotates, and under the action of centrifugal force, phosphate rock in the feeding cavity whose particle size meets the gap size between the second and first discharge holes is thrown into the discharge cavity. This process is repeated until all the ground phosphate rock that meets the required particle size is thrown into the discharge cavity through the gap between the second and first discharge holes, thus avoiding the presence of excessively large or small particles in the ground phosphate rock and achieving stable and precise particle size control.

[0018] This invention features multiple movable columns arranged in a circular pattern, with the limiting plate connected to each column. The lower ends of the movable columns are rotatably mounted in a rotating groove, and the limiting plate is positioned at the upper end of the worktable forming the rotating groove. As the material tray rotates, the movable columns rotate within the rotating groove, causing the limiting plate to rotate synchronously. By using the limiting plate, the material tray becomes more stable during rotation.

[0019] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0021] Figure 2 This is a partial exploded view of the main body of the device and the grinding structure of this utility model;

[0022] Figure 3 This is a partial exploded view of the main body of the device of this utility model;

[0023] Figure 4 This is a partial exploded view of the discharge structure of this utility model from one angle;

[0024] Figure 5 This is a partial exploded view of the discharge structure of this utility model from another angle.

[0025] In the diagram: 1. Main body of the equipment; 11. Workbench; 111. Mounting hole; 112. Rotary trough; 12. Material tray; 121. Material holding chamber; 122. Mounting chamber; 123. First discharge hole; 124. Moving trough; 125. Discharge chamber; 126. Mounting door; 127. Limiting hole; 128. Moving column; 129. Limiting plate; 13. Dust cover; 131. Insertion hole; 132. Limiting column; 2. Grinding structure; 21. Grinding roller; 22. Drive rod; 23. With moving rod; 24. Rotating column; 25. Grinding motor; 3. Discharge structure; 31. Rotating ring; 311. Connecting column; 312. Second discharge hole; 32. Connecting plate; 33. Worm; 34. Worm wheel; 35. Gear ring; 36. Gear; 37. Discharge motor. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0028] like Figures 1 to 5 As shown, this utility model embodiment provides a phosphate rock raw material grinding device, including:

[0029] The main body of the equipment 1 includes a workbench 11, a material tray 12 and a dust cover 13. The material tray 12 is rotatably mounted on the workbench 11 and the dust cover 13 is detachably mounted on the upper surface of the material tray 12.

[0030] The material tray 12 has a material holding cavity 121 inside, an installation cavity 122 on the side wall of the material tray 12, a plurality of spaced first discharge holes 123 on the inner wall of the installation cavity 122, and a pair of oppositely arranged moving grooves 124 on the bottom wall of the installation cavity 122.

[0031] Grinding structure 2 includes grinding roller 21, which is rotatably disposed in material holding cavity 121;

[0032] The discharge structure 3 includes a rotating ring 31, a connecting plate 32, a worm 33, and a worm wheel 34. The lower end face of the rotating ring 31 has a pair of oppositely arranged connecting posts 311. The two ends of the connecting plate 32 are respectively connected to the pair of connecting posts 311. The worm wheel 34 is fixedly installed on the connecting plate 32. The pair of connecting posts 311 are symmetrically distributed with the worm wheel 34 as the center. The worm 33 meshes with the worm wheel 34. The rotating ring 31 is installed in the mounting cavity 122. The rotating ring 31 has a plurality of second discharge holes 312 with the same diameter as the first discharge hole 123, which are arranged at intervals. The connecting posts 311 are movably arranged in the moving groove 124. The connecting plate 32 and the worm 33 are rotatably arranged on the lower end face of the material receiving tray 12.

[0033] In this embodiment, after the grinding roller 21 has been grinding for a period of time, the grinding roller 21 is suspended above the bottom wall of the material holding cavity 121. The worker rotates the worm gear 33, which in turn drives the worm wheel 34 and the connecting plate 32 connected to the worm wheel 34 to rotate synchronously. At this time, the connecting column 311 moves in the moving groove 124, which in turn drives the connecting plate 32 to rotate, so that the rotating ring 31 rotates in the mounting cavity 122 until the second discharge hole 312 and the first discharge hole 123 form a gap that meets the required size. After the rotating ring 31 has rotated, the material holding tray 12 also rotates synchronously. Under the action of centrifugal force, the phosphate rock in the material holding cavity 121 whose particle size meets the gap size between the second discharge hole 312 and the first discharge hole 123 is thrown from the gap into the discharge cavity 125. In the middle; however, phosphate rock with a particle size larger than the gap cannot pass through the gap and remains in the feeding chamber 125; then, the user rotates the worm 33, which in turn drives the worm wheel 34 and the connecting plate 32 connected to the worm wheel 34 to rotate synchronously until the second feeding hole 312 is misaligned with the first feeding hole 123; at this time, the feeding chamber 121 is closed again; the grinding roller 21 rotates to grind the larger phosphate rock particles in the feeding chamber 121 again; this process is repeated until all the phosphate rock that meets the particle size requirement after grinding is thrown into the feeding chamber 125 through the gap between the second feeding hole 312 and the first feeding hole 123, so as to avoid the presence of some oversized or undersized particles in the ground phosphate rock, so as to achieve stable and accurate particle size control;

[0034] Specifically, the discharge structure 3 also includes a gear ring 35, a gear 36 and a discharge motor 37. The worktable 11 has multiple mounting holes 111. The gear ring 35 meshes with the gear 36. The output shaft of the discharge motor 37 is connected to the gear 36. The gear 36 is rotatably mounted on the worktable 11. The gear ring 35 is mounted on the lower end face of the material tray 12. The gear ring 35 and the gear 36 are positioned between the multiple mounting holes 111.

[0035] In this embodiment, after the rotating ring 31 has rotated, the discharge motor 37 drives the gear 36 to rotate, and through the gear ring 35 meshing with the gear 36, it drives the material receiving tray 12 to rotate synchronously. At this time, under the action of centrifugal force, phosphate rock in the material receiving cavity 121 whose particle size meets the gap size between the second discharge hole 312 and the first discharge hole 123 is thrown from the gap into the discharge cavity 125; while phosphate rock with a particle size larger than the gap cannot pass through the gap and stays in the discharge cavity 125.

[0036] Specifically, the dust cover 13 has a plug hole 131, and the grinding structure 2 also includes a drive rod 22, a moving rod 23, a rotating column 24 and a grinding motor 25. The moving rod 23 is fixedly installed on the worktable 11, the upper end of the rotating column 24 is fixedly installed on the moving rod 23, the grinding roller 21 is fixedly installed on the lower end of the rotating column 24, the output shaft of the grinding motor 25 is connected to the rotating column 24, and the rotating column 24 is plugged into the plug hole 131.

[0037] In this embodiment, after the grinding motor 25 is started, it drives the rotating column 24 to rotate around its own axis, which in turn drives the grinding roller 21 to rotate around the rotating column 24 axis. The rotating grinding roller 21 grinds the phosphate rock in the material chamber 121.

[0038] Specifically, the material tray 12 has a discharge chamber 125 and an installation door 126 on the outer side, and the installation door 126 is detachably installed on the side wall of the material tray 12 forming the discharge chamber 125.

[0039] In this embodiment, after all the phosphate rock that meets the particle size requirement is placed in the feeding chamber 125, the worker moves the installation door 126 upwards, and then takes out the phosphate rock in the feeding chamber 125 through the opening formed by the installation door 126. The operation is simple.

[0040] Specifically, the upper end of the material tray 12 has a limiting hole 127, and the lower end of the dust cover 13 has a limiting post 132, which is adapted to the limiting hole 127.

[0041] In this embodiment, a gap is formed between the dust cover 13 and the material tray 12; at this time, the limiting post 132 on the dust cover 13 disengages from the limiting hole 127 on the material tray 12, and then the worker puts the phosphate rock to be ground into the material tray 121 from between the dust cover 13 and the material tray 12.

[0042] Specifically, the workbench 11 has a rotating groove 112, and the lower end face of the material tray 12 is provided with a moving column 128 and a limiting plate 129. Multiple moving columns 128 are provided and are distributed in a circumferentially spaced manner. The limiting plate 129 is connected to the multiple moving columns 128. The lower end of the moving column 128 is rotatably provided in the rotating groove 112, and the limiting plate 129 is provided at the upper end of the workbench 11 that forms the rotating groove 112.

[0043] In this embodiment, as the material tray 12 rotates, the moving column 128 rotates in the rotating groove 112. The rotating moving column 128 drives the limiting plate 129 to rotate synchronously. By setting the limiting plate 129, the material tray 12 is made more stable during rotation.

[0044] The working principle of this utility model is as follows:

[0045] In the initial state, the worker installs the dustproof device in multiple mounting holes 111 on the workbench 11 to prevent the gear ring 35 and gear 36 from being exposed to the air and contaminated;

[0046] First, the drive rod 22 drives the belt shifting rod 23 to move upward, which in turn drives the rotating column 24 and the dust cover 13 inserted in the insertion hole 131 to move upward, so that a gap is formed between the dust cover 13 and the material tray 12; at this time, the limiting post 132 on the dust cover 13 disengages from the limiting hole 127 on the material tray 12, and then the worker puts the phosphate rock to be ground from between the dust cover 13 and the material tray 12 into the material chamber 121;

[0047] In this embodiment, the drive rod 22 is implemented as an electric push rod; in other embodiments, the drive rod 22 may also be implemented as including a cylinder;

[0048] After the phosphate rock is fed in, the drive rod 22 drives the belt shift rod 23 to move downward so that the limiting post 132 is placed in the limiting hole 127. Then, the grinding motor 25, after starting, drives the rotating column 24 to rotate around its own axis, which in turn drives the grinding roller 21 to rotate around the rotating column 24. The rotating grinding roller 21 grinds the phosphate rock in the material holding chamber 121. At this time, the first discharge hole 123 and the second discharge hole 312 are staggered to keep the material holding chamber 121 in a closed state to prevent the phosphate rock from spilling.

[0049] After the grinding roller 21 has been grinding for a period of time, the moving rod 23 moves upward to drive the rotating column 24 and the grinding roller 21 to move upward synchronously until the grinding roller 21 is suspended above the bottom wall of the material holding cavity 121. Then, the worker rotates the worm gear 33, which in turn drives the worm wheel 34 and the connecting plate 32 connected to the worm wheel 34 to rotate synchronously. At this time, the connecting column 311 moves in the moving groove 124, which in turn drives the connecting plate 32 to rotate, so that the rotating ring 31 rotates in the mounting cavity 122 until the second discharge hole 312 and the first discharge hole 123 form a gap that meets the required size.

[0050] After the rotating ring 31 completes its rotation, the discharge motor 37 drives the gear 36 to rotate, which in turn drives the material receiving tray 12 to rotate synchronously through the gear ring 35 meshing with the gear 36. At this time, under the action of centrifugal force, phosphate rock in the material receiving cavity 121 whose particle size meets the gap size between the second discharge hole 312 and the first discharge hole 123 is thrown into the discharge cavity 125 through the gap; while phosphate rock with a particle size larger than the gap cannot pass through the gap and remains in the discharge cavity 125.

[0051] During the rotation of the material tray 12, the moving column 128 rotates in the rotating groove 112. The rotating moving column 128 drives the limiting plate 129 to rotate synchronously. By setting the limiting plate 129, the material tray 12 is made more stable during rotation.

[0052] Subsequently, the user rotates the worm gear 33, which in turn drives the worm wheel 34 and the connecting plate 32 connected to the worm wheel 34 to rotate synchronously until the second discharge hole 312 is misaligned with the first discharge hole 123; at this time, the material holding chamber 121 is closed again; after the grinding motor 25 starts, it drives the rotating column 24 to rotate around its own axis, which in turn drives the grinding roller 21 to rotate, so as to grind the larger phosphate rock particles in the material holding chamber 121 again.

[0053] This process is repeated until all the phosphate rock that meets the required particle size after grinding is thrown into the feeding chamber 125 through the gap between the second feeding hole 312 and the first feeding hole 123. In this way, by setting the rotating ring 31, it is possible to avoid the presence of some oversized or undersized particles in the ground phosphate rock, so as to achieve stable and precise particle size control.

[0054] After all the phosphate rock that meets the particle size requirement is placed in the feeding chamber 125, the worker moves the installation door 126 upwards, and then removes the phosphate rock in the feeding chamber 125 through the opening formed by the installation door 126. The operation is simple.

[0055] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A phosphate rock raw material grinding device, characterized in that, include: The main body of the equipment (1) includes a workbench (11), a material tray (12) and a dust cover (13). The material tray (12) is rotatably mounted on the workbench (11), and the dust cover (13) is detachably disposed on the upper surface of the material tray (12). The material tray (12) has a material holding cavity (121) inside, and a mounting cavity (122) on the side wall of the material tray (12). The material tray (12) has a plurality of spaced first discharge holes (123) on the inner wall forming the mounting cavity (122). The material tray (12) has a pair of oppositely arranged moving grooves (124) on the bottom wall forming the mounting cavity (122). The grinding structure (2) includes a grinding roller (21) which is rotatably disposed in the material holding cavity (121); The discharge structure (3) includes a rotating ring (31), a connecting plate (32), a worm (33), and a worm wheel (34). The lower end face of the rotating ring (31) has a pair of oppositely arranged connecting posts (311). The two ends of the connecting plate (32) are respectively connected to the pair of connecting posts (311). The worm wheel (34) is fixedly installed on the connecting plate (32). The pair of connecting posts (311) are symmetrical about the worm wheel (34). The worm (33) meshes with the worm wheel (34), the rotating ring (31) is installed in the mounting cavity (122), the rotating ring (31) has a plurality of second feeding holes (312) with the same diameter as the first feeding hole (123) arranged at intervals, the connecting column (311) is movably arranged in the moving groove (124), and the connecting plate (32) and the worm (33) are rotatably arranged on the lower end face of the material tray (12).

2. A device for grinding phosphate rock raw material according to claim 1, characterized in that: The discharge structure (3) further includes a gear ring (35), a gear (36) and a discharge motor (37). The worktable (11) has multiple mounting holes (111). The gear ring (35) meshes with the gear (36). The output shaft of the discharge motor (37) is connected to the gear (36). The gear (36) is rotatably mounted on the worktable (11). The gear ring (35) is located on the lower end face of the material tray (12). The gear ring (35) and the gear (36) are positioned between the multiple mounting holes (111).

3. A device for grinding phosphate rock feed material according to claim 2, characterised in that: The dust cover (13) has a plug hole (131). The grinding structure (2) also includes a drive rod (22), a moving rod (23), a rotating column (24), and a grinding motor (25). The moving rod (23) is fixedly installed on the worktable (11). The upper end of the rotating column (24) is fixedly installed on the moving rod (23). The grinding roller (21) is fixedly installed on the lower end of the rotating column (24). The output shaft of the grinding motor (25) is connected to the rotating column (24). The rotating column (24) is plugged into the plug hole (131).

4. A device for grinding phosphate rock feed material according to claim 3, characterised in that: The material tray (12) has a discharge cavity (125) and a mounting door (126) on its outer side. The mounting door (126) is detachably mounted on the side wall of the material tray (12) that forms the discharge cavity (125).

5. A device for grinding phosphate rock feed material as claimed in claim 4, characterised in that: The upper end of the material tray (12) has a limiting hole (127), and the lower end of the dust cover (13) has a limiting post (132), which is adapted to the limiting hole (127).

6. A device for grinding phosphate rock feed material according to claim 5, characterised in that: The workbench (11) has a rotating groove (112). The lower end face of the material tray (12) is provided with a movable column (128) and a limiting plate (129). There are multiple movable columns (128), which are distributed in a circular interval. The limiting plate (129) is connected to the multiple movable columns (128). The lower end of the movable column (128) is rotatably disposed in the rotating groove (112). The limiting plate (129) is disposed on the upper end of the workbench (11) forming the rotating groove (112).

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