Ore cleaning and grading device

Abstract

The invention discloses an ore cleaning and grading device, and relates to the field of ore cleaning, the ore cleaning and grading device comprises a mounting seat, a feeding assembly, a grading assembly and a cleaning assembly, and the grading assembly comprises an inner cylinder, an outer cylinder and a driving mechanism; the cleaning assembly comprises a soaking mechanism, a spraying plate and a stirring mechanism. The ore is pretreated through the soaking mechanism so that clay on the surface of the ore can be soaked before cleaning, meanwhile, water flow is sprayed again through the spraying plate when the ore is cleaned, and therefore the clay on the surface of the ore is fully cleaned in cooperation with the stirring mechanism; the ore in the inner barrel is reversely conveyed through the arranged stirring mechanism, so that the staying time of the ore in the inner barrel is prolonged, it is guaranteed that the cleaning and grading time of the ore is sufficient, it is guaranteed that clay on the surface of the ore can be fully cleaned, meanwhile, the ore can be strictly graded, and the ore is subjected to primary grading through the inner barrel and the outer barrel correspondingly; and the ores are strictly graded according to the size of the diameter through two-time grading, so that the subsequent treatment cost is saved.

Description

Technical Field

[0001] This invention relates to the field of ore cleaning technology, and more specifically to an ore cleaning and grading device. Background Technology

[0002] In the process of ore mining and processing, washing and grading are two crucial steps. After being mined, ore typically has impurities such as mud and dust adhering to its surface, which can affect the effectiveness of subsequent processes such as beneficiation and smelting. At the same time, ores of different particle sizes need to be graded to meet different processing requirements.

[0003] For example, patent application CN110090832A, published on August 6, 2019, entitled "A Washing and Screening Device for Calcium Carbonate Ore Raw Materials," includes a feed belt and a washing mechanism. The output end of the feed belt is equipped with a hopper, and the discharge end of the hopper extends into the washing mechanism. The washing mechanism includes an outer washing cylinder and an inner washing cage, both of which are cylindrical structures with openings at both ends. A first spiral feeding plate and a second spiral feeding plate are respectively provided on the inner walls of the outer washing cylinder and the inner washing cage. The inner wall of the outer washing cylinder and the outer wall of the inner washing cage are connected and fixed together by the first spiral feeding plate. This application can effectively wash and screen calcium carbonate ore raw materials, realizing simultaneous washing and screening of the ore, improving the efficiency of the washing and screening operation, and simultaneously classifying ores of different sizes, facilitating the application of ores of different sizes to different processing operations.

[0004] The shortcomings of existing ore washing and grading equipment are that the washing mechanism of existing ore washing and grading equipment rarely or never performs pretreatment on the ore, and the residence time of the ore in the washing mechanism is short, making it difficult to fully remove the clay on the surface of the ore; in addition, the ore washing and grading equipment rarely performs multiple grading of the ore, making it difficult to achieve strict grading of the ore. Summary of the Invention

[0005] The purpose of this invention is to provide an ore washing and grading device to overcome the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: An ore washing and grading device includes a mounting base, a feeding assembly disposed on one side of the upper end of the mounting base, and further includes: A grading assembly includes an inner cylinder with its two ends supported by support plates on the upper end of a mounting base. An outer cylinder is fitted around the outer side of the inner cylinder and is rotatably mounted between two support plates. A driving mechanism is provided at one end of the outer cylinder to drive the outer cylinder to rotate. Both the inner cylinder and the outer cylinder are provided with through holes for grading the ore. The cleaning assembly includes a wetting mechanism disposed on the feeding assembly. A spray plate is disposed on the upper inner side of the inner cylinder, which can convey and spray water along the axial direction of the inner cylinder. A stirring mechanism is disposed in the middle of the inner cylinder, which is used to stir and reverse convey the ore into the inner cylinder.

[0007] As described above, the feeding assembly includes a feeding pipe, which is mounted on the upper end of the mounting base via a mounting plate. One end of the feeding pipe is rotatably connected to one end of the inner cylinder, and the other end of the feeding pipe is provided with a hopper.

[0008] As described above, the inner cylinder is arranged at an angle via the support plate, with one end of the inner cylinder facing the feeding assembly being higher than the other end of the inner cylinder away from the feeding assembly, and the inner cylinder includes grading holes that are evenly arranged on the outer side of the inner cylinder, with a discharge port provided on the lower side of the end of the inner cylinder away from the feeding assembly.

[0009] As described above, the axis of the outer cylinder coincides with the central axis of the inner cylinder, the outer cylinder is uniformly provided with screen holes, and the end of the outer cylinder away from the feeding component is uniformly provided with multiple discharge ports along its circumference.

[0010] As described above, the driving mechanism includes a drive motor, which is mounted on the support plate near the feeding assembly. The output end of the drive motor is provided with a drive gear, and a gear ring is provided on the outer side of the outer cylinder, which meshes with the drive gear.

[0011] The aforementioned wetting mechanism includes an annular tube, which is disposed on the outside of the hopper via a locking block. Multiple nozzles are evenly arranged along the circumference of the annular tube, and the nozzles are connected to the annular tube. The nozzles are disposed inside the hopper, and a connecting pipe is provided on the annular tube.

[0012] As described above, a water inlet pipe is provided at the end of the spray plate away from the feeding assembly, and water outlet holes are uniformly provided at the lower end of the spray plate, with the diameter of the water outlet holes gradually increasing in the direction away from the water inlet pipe.

[0013] The aforementioned stirring mechanism includes a stirring motor, which is mounted on the upper end of the mounting base away from the feeding assembly via a mounting bracket. The output end of the stirring motor is connected to a rotating shaft via a coupling. The rotating shaft is rotatably disposed inside the inner cylinder. The rotating shaft is provided with multiple spiral blades, and multiple stirring units are arranged between the spiral blades. The stirring units are evenly arranged along the circumference of the rotating shaft, and the stirring units are spaced apart from the spiral blades.

[0014] As described above, the stirring unit includes a fixed rod, a lifting rod is slidably disposed on the outer side of the fixed rod, and a buffer spring is disposed between the lifting rod and the fixed rod, the buffer spring being located inside the lifting rod.

[0015] As described above, a receiving plate is provided below the grading component, and the receiving plate is provided with filter holes. The receiving plate is used to receive the ore after cleaning and grading.

[0016] In the above technical solution, the beneficial effects of the present invention are as follows: 1. The present invention pre-treats the ore by means of a wetting mechanism so as to wet the clay on the surface of the ore before cleaning. At the same time, water is sprayed again by a spray plate during the ore cleaning, thereby working with the stirring mechanism to thoroughly clean the clay on the surface of the ore. 2. The present invention uses a stirring mechanism to reverse-transport the ore in the inner cylinder, so as to extend the residence time of the ore in the inner cylinder, ensure sufficient time for cleaning and grading of the ore, ensure that the clay on the surface of the ore can be thoroughly cleaned, and ensure that the ore can be strictly graded. Furthermore, the ore is graded once by the inner cylinder and once by the outer cylinder. The two grading processes ensure that the ore is strictly graded according to its diameter, so as to save subsequent processing costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a three-dimensional structural diagram of the ore washing and grading device provided in an embodiment of the present invention; Figure 2 A top view of an ore washing and grading apparatus provided in another embodiment of the present invention; Figure 3 Provided for another embodiment of the present invention Figure 2 Sectional view at point AA; Figure 4A three-dimensional structural diagram of the inner cylinder, grading holes and discharge port provided in another embodiment of the present invention; Figure 5 A perspective sectional view of the outer cylinder, screen holes, discharge port, and spiral ribs provided in another embodiment of the present invention; Figure 6 Provided for another embodiment of the present invention Figure 3 A magnified view of N points; Figure 7 This is a three-dimensional structural diagram of the spray plate and the water outlet provided in another embodiment of the present invention; Figure 8 Provided for another embodiment of the present invention Figure 3 A magnified view of a portion of point M; Figure 9 This is a three-dimensional structural diagram of the shaft, spiral blades and stirring unit provided in another embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures: 1. Mounting base; 10. Receiving plate; 2. Feeding assembly; 20. Feeding pipe; 21. Hopper; 3. Grading assembly; 30. Inner cylinder; 300. Grading hole; 301. Discharge port; 31. Support plate; 32. Outer cylinder; 320. Screen hole; 321. Discharge port; 322. Spiral ribs; 33. Drive mechanism; 330. Drive motor; 331. Drive gear; 332. Gear ring; 4. Cleaning assembly; 40. Wetting mechanism; 400. Annular pipe; 401. Nozzle; 41. Spray plate; 410. Water outlet; 42. Stirring mechanism; 420. Stirring motor; 421. Rotating shaft; 422. Spiral blades; 423. Stirring unit; 4230. Fixing rod; 4231. Lifting rod; 4232. Buffer spring. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] In the description of this invention, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "side", "inner", "outer", "one end", "the other end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and 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. Therefore, they should not be construed as limitations on this invention.

[0022] like Figures 1-9 As shown in the figure, an ore washing and grading device provided in an embodiment of the present invention includes a mounting base 1, a feeding assembly 2 is provided on one side of the upper end of the mounting base 1, and further includes: The grading component 3 includes an inner cylinder 30, with both ends of the inner cylinder 30 mounted on the upper end of the mounting base 1 via support plates 31. An outer cylinder 32 is sleeved on the outer side of the inner cylinder 30 and is rotatably mounted between the two support plates 31. A driving mechanism 33 is provided at one end of the outer cylinder 32 for driving the outer cylinder 32 to rotate. Both the inner cylinder 30 and the outer cylinder 32 are provided with through holes for grading the ore. The cleaning component 4 includes a wetting mechanism 40, which is disposed on the feeding component 2. A spray plate 41 is disposed on the upper side of the inner cylinder 30. The spray plate 41 can convey and spray water along the axial direction of the inner cylinder 30. A stirring mechanism 42 is disposed in the middle of the inner cylinder 30. The stirring mechanism 42 is used to stir and reverse convey the ore entering the inner cylinder 30.

[0023] In another embodiment of the present invention, the feeding assembly 2 includes a feeding pipe 20, which is disposed at the upper end of the mounting base 1 via a mounting plate, and one end of the feeding pipe 20 is rotatably connected to one end of the inner cylinder 30, and the other end of the feeding pipe 20 is provided with a hopper 21. The specific implementation method is as follows: When using the ore washing and grading device, firstly, the ore washing and grading device is installed and fixed through the mounting base 1. After the ore washing and grading device is installed and fixed, the washing component is connected to the external water supply component. Then, the ore is conveyed to the hopper 21, so that the ore enters the inner cylinder 30 after being guided by the hopper 21 and the feed pipe 20. When the ore enters the hopper 21, water is sprayed onto the ore entering the hopper 21 through the wetting mechanism 40, so that the water sprayed by the wetting mechanism 40 wets the ore to facilitate subsequent ore washing. After the ore enters the inner cylinder 30, water is sprayed onto the ore again through the spray plate 41. At the same time, the ore in the inner cylinder 30 is stirred by the stirring mechanism 42, so that the ore moves and interacts with each other. Friction accelerates the removal of clay from the surface of the ore through mechanical impact, stirring, and abrasion between the ore particles. Simultaneously, the water sprayed from the spray plate 41 thoroughly removes the clay from the ore surface. This allows the through-holes on the inner cylinder 30 to perform the first classification of the ore during the washing process of the stirring mechanism 42. Furthermore, the outer cylinder 32 is driven to rotate by the driving mechanism 33, causing the rotated outer cylinder 32 to move the ore passing through the through-holes on the inner cylinder 30 and positioned between the two cylinders. This allows the outer cylinder 32 to wash the ore between the inner and outer cylinders, and the water sprayed from the spray plate 41 ensures that the clay on the ore surface is thoroughly washed away. Additionally, the rotation of the outer cylinder 32 allows for a second classification of the ore through the through-holes on its surface.

[0024] In another embodiment of the present invention, the inner cylinder 30 is inclinedly arranged through the support plate 31, the end of the inner cylinder 30 facing the feeding assembly 2 is higher than the end of the inner cylinder 30 away from the feeding assembly 2, and the inner cylinder 30 includes grading holes 300, the grading holes 300 are evenly arranged on the outside of the inner cylinder 30, and the lower side of the end of the inner cylinder 30 away from the feeding assembly 2 is provided with a discharge port 301.

[0025] In another embodiment of the present invention, the axis of the outer cylinder 32 coincides with the central axis of the inner cylinder 30, the outer cylinder 32 is uniformly provided with screen holes 320, and the outer cylinder 32 is uniformly provided with a plurality of discharge ports 321 along its circumference at the end away from the feeding component 2.

[0026] In another embodiment of the present invention, the driving mechanism 33 includes a driving motor 330, which is disposed on the support plate 31 near the feeding assembly 2. The output end of the driving motor 330 is provided with a driving gear 331, and a toothed ring 332 is provided on the outer side of the outer cylinder 32. The toothed ring 332 meshes with the driving gear 331. The specific implementation method is as follows: When the ore enters the inner cylinder 30 from the hopper 21 and the feed pipe 20, the stirring mechanism 42 drives the ore to move within the inner cylinder 30, causing collisions and friction between the ore particles to fully remove the clay from the surface of the ore. During the movement of the ore within the inner cylinder 30, it undergoes initial classification through the classification holes 300 on the inner cylinder 30. Larger diameter ore particles remain within the inner cylinder 30 for cleaning and are eventually discharged through the outlet 301. Smaller diameter ore particles can pass through the classification holes 300 on the inner cylinder 30 and fall into the inner side of the outer cylinder 32. That is, smaller diameter ore particles are positioned between the outer cylinder 32 and the inner cylinder 30 when the stirring mechanism 42 is operating. At this time, the drive motor 330 drives the drive gear 331 to rotate, which in turn drives the gear ring 332 to rotate. This causes the gear ring 332 to move the outer cylinder 32 against the support plate 3. The outer cylinder 32 rotates between the inner and outer cylinders 30, causing the ore between them to collide and rub against each other. This allows the water sprayed from the spray plate 41 to thoroughly clean the clay on the surface of the ore. When the drive motor 330 drives the outer cylinder 32 to rotate through the drive gear 331 and gear ring 332, the rotated outer cylinder 32 performs a second classification of the ore through the screen holes 320: the larger diameter ore remains inside the outer cylinder 32 for cleaning and is eventually discharged from the outer cylinder 32 through multiple discharge ports 321; the smaller diameter ore can pass through the screen holes 320 and be discharged directly from the outer cylinder 32. Different diameter grades of ore are collected at the discharge port 301, discharge port 321, and lower end of the screen holes 320, so that the ore can be classified during cleaning.

[0027] Furthermore, the outer cylinder 32 is uniformly provided with multiple spiral ribs 322 along its circumference. When the drive motor 330 drives the outer cylinder 32 to rotate through the drive gear 331 and gear ring 332, the rotated outer cylinder 32 drives the multiple spiral ribs 322 to rotate synchronously. This causes the spiral ribs 322 to move the ore in the outer cylinder 32 in the opposite direction of its downward movement, thereby prolonging the time the ore stays in the outer cylinder 32 and ensuring that the ore in the outer cylinder 32 is fully cleaned and graded. Moreover, when the spiral ribs 322 rotate with the outer cylinder 32, they can scrub the ore in the outer cylinder 32 to fully wash away the clay on the surface of the ore in the outer cylinder 32.

[0028] In another embodiment of the present invention, the wetting mechanism 40 includes an annular tube 400, which is disposed on the outside of the hopper 21 by means of a locking block. A plurality of nozzles 401 are uniformly disposed on the annular tube 400 along its circumference. The nozzles 401 are connected to the annular tube 400 and are disposed inside the hopper 21. A connecting pipe is provided on the annular tube 400.

[0029] In another embodiment of the present invention, a water inlet pipe is provided at the end of the spray plate 41 away from the feeding assembly 2, and water outlet holes 410 are uniformly provided at the lower end of the spray plate 41, and the diameter of the water outlet holes 410 gradually increases in the direction away from the water inlet pipe. The specific implementation method is as follows: When the ore washing and grading device is in use, the external water supply component is connected to the connecting pipe and the inlet pipe, so that the external water supply component delivers water to the annular pipe 400 through the connecting pipe, so that the annular pipe 400 sprays water through multiple nozzles 401, so that the water sprayed by the nozzles 401 can wet the ore entering the hopper 21, so that the clay on the surface of the ore is fully wetted, which is convenient for subsequent ore washing and ensures that the clay on the surface of the ore can be fully washed away; and the external water supply component delivers water to the spray pipe through the inlet pipe, so that the spray plate 41 sprays water onto the ore through the outlet hole 410, ensuring that the clay on the surface of the ore can be fully washed away, and the diameter of the outlet hole 410 gradually increases away from the inlet pipe, so that the spray plate 41 can deliver the water in it as evenly as possible along the length of the inner cylinder 30, so that the water is evenly sprayed inside the inner cylinder 30.

[0030] In another embodiment of the present invention, the stirring mechanism 42 includes a stirring motor 420. The stirring motor 420 is mounted on the upper end of the mounting base 1 away from the feeding assembly 2 via a mounting bracket. The output end of the stirring motor 420 is connected to a rotating shaft 421 via a coupling. The rotating shaft 421 is rotatably disposed inside the inner cylinder 30. Multiple spiral blades 422 are disposed on the rotating shaft 421. Multiple stirring units 423 are disposed between the spiral blades 422. The stirring units 423 are evenly arranged around the rotating shaft 421, and the stirring units 423 are spaced apart from the spiral blades 422.

[0031] In another embodiment of the present invention, the stirring unit 423 includes a fixed rod 4230, a lifting rod 4231 is slidably disposed on the outer side of the fixed rod 4230, and a buffer spring 4232 is disposed between the lifting rod 4231 and the fixed rod 4230, the buffer spring 4232 being located inside the lifting rod 4231; The specific implementation method is as follows: After the ore enters the inner cylinder 30, the stirring motor 420 drives the rotating shaft 421 to rotate, which in turn drives the spiral blades 422 to rotate synchronously. This causes the spiral blades 422 to move the ore inside the inner cylinder 30. The ore slides down the inclined inner cylinder 30 due to its own gravity, while the stirring motor 420, through the rotating shaft 421, drives the spiral blades 422 to transport the ore in the inner cylinder 30 in the opposite direction of the downward movement. This prolongs the time the ore remains in the inner cylinder 30, ensuring that the ore is thoroughly cleaned and graded. Furthermore, the spaced, multi-segment spiral blades 422 ensure that the ore slides down the inner cylinder 30 as a whole, allowing the ore cleaning and grading device to continuously clean and grade the ore entering the inner cylinder 30. Additionally, the stirring motor 420 drives the spiral blades 422 to rotate through the rotating shaft 421. While stirring the ore, the rotating shaft 421 drives the stirring unit 423 on it to rotate synchronously, so that the stirring unit 423 can fully stir the ore, so that the stirring mechanism 42 can intensify the collision and friction between the ore. Specifically, the stirring motor 420 drives the rotating shaft 421 to rotate, so that the rotating shaft 421 drives the fixed rod 4230 on it to rotate synchronously, so that the fixed rod 4230 drives the lifting rod 4231 to rotate synchronously to stir the ore in the inner cylinder 30. When the fixed rod 4230 and the lifting rod 4231 rotate to stir the ore, when the lifting rod 4231 is squeezed, it can squeeze the buffer spring 4232 to move along the fixed rod 4230 towards the rotating shaft 421, so as to shorten the total length between the fixed rod 4230 and the lifting rod 4231, and prevent the lifting rod 4231 from getting stuck between the inner cylinder 30 after the ore enters between it.

[0032] In another embodiment of the present invention, a receiving plate 10 is provided below the grading component 3, and the receiving plate 10 is provided with filter holes. The receiving plate 10 is used to receive the ore after cleaning and grading. The specific implementation method is as follows: After the ore is washed and graded, the ore of different diameter grades is separated from the inner cylinder 30 and the outer cylinder 32 through the discharge port 301, the discharge port 321 and the screen hole 320 respectively. At this time, the receiving plate 10 is set to receive the washed and graded ore, and the separation between the ore and the mud and water is achieved through the filter holes on the receiving plate 10.

[0033] Working Principle: When using the ore washing and grading device, firstly, install and fix the ore washing and grading device through the mounting base 1. After the ore washing and grading device is installed and fixed, connect the washing component to the external water supply component. Then, convey the ore into the hopper 21, so that the ore enters the inner cylinder 30 after being guided by the hopper 21 and the feed pipe 20. When the ore enters the hopper 21, water is sprayed onto the ore by the wetting mechanism 40, so that the water sprayed by the wetting mechanism 40 wets the ore for subsequent ore washing. Specifically, connect the external water supply component to the connecting pipe, so that the external water supply component delivers water to the annular pipe 400 through the connecting pipe, so that the annular pipe 400 sprays the water through multiple nozzles 401, so that... The water jet from nozzle 401 wets the ore entering hopper 21, ensuring that the clay on the surface of the ore is fully wetted, facilitating subsequent ore washing and ensuring that the clay on the surface of the ore is thoroughly washed away. After the ore enters the inner cylinder 30, water is sprayed onto the ore again through spray plate 41. The external water supply component is connected to the water inlet pipe, allowing the external water supply component to deliver water to the spray pipe through the water inlet pipe. The spray plate 41 then sprays the water onto the ore through the water outlet 410, ensuring that the clay on the surface of the ore is thoroughly washed away. The diameter of the water outlet 410 gradually increases away from the water inlet pipe, so that the spray plate 41 can deliver the water flow evenly along the length of the inner cylinder 30, ensuring that the water is evenly sprayed inside the inner cylinder 30. Simultaneously, the stirring mechanism 42 agitates the ore inside the inner cylinder 30, causing the ore to move and rub against each other. This mechanical impact, stirring, and grinding action accelerates the removal of clay from the surface of the ore, allowing the stirring mechanism 42 to wash the ore while the through holes in the inner cylinder 30 perform the first classification of the ore. Specifically, after the ore enters the inner cylinder 30, the stirring motor 420 drives the rotating shaft 421 to rotate, which in turn drives the spiral blades 422 to rotate synchronously. This causes the spiral blades 422 to move the ore inside the inner cylinder 30, and the ore slides down the inclined inner cylinder 30 due to its own gravity. The stirring motor 421, through the rotating shaft 421, drives the spiral blades 422 to move the ore inside the inner cylinder 30. The ore is conveyed in the opposite direction of downward movement to prolong its residence time within the inner cylinder 30, ensuring thorough cleaning and grading. The spaced, multi-segmented spiral blades 422 ensure the ore slides smoothly along the inner cylinder 30, allowing the ore cleaning and grading device to continuously clean and grade the ore entering the inner cylinder 30. Furthermore, while the stirring motor 420 drives the spiral blades 422 to rotate and stir the ore via the shaft 421, the shaft 421 also drives the stirring unit 423 to rotate synchronously, ensuring thorough stirring of the ore by the stirring unit 423. This intensifies the collision and friction between the ore particles. Specifically, the stirring motor 420 drives the shaft 421 to rotate, thus... The rotating shaft 421 drives the fixed rod 4230 to rotate synchronously, which in turn drives the lifting rod 4231 to rotate synchronously to stir the ore in the inner cylinder 30. When the fixed rod 4230 and the lifting rod 4231 rotate and stir the ore, the lifting rod 4231, when compressed, can compress the buffer spring 4232 to move along the fixed rod 4230 toward the rotating shaft 421, so as to shorten the total length between the fixed rod 4230 and the lifting rod 4231, and prevent the lifting rod 4231 from getting stuck between the lifting rod 4231 and the inner cylinder 30 after the ore enters between them. When the ore moves in the inner cylinder 30, it is first classified through the classification holes 300 on the inner cylinder 30. The ore with a larger diameter remains in the inner cylinder 30. The inner cylinder 30 is cleaned and finally discharged through the outlet 301. Smaller diameter ores can pass through the grading holes 300 on the inner cylinder 30 and fall into the inner side of the outer cylinder 32. That is, when the stirring mechanism 42 is working, the smaller diameter ores will be between the outer cylinder 32 and the inner cylinder 30. At this time, the drive motor 330 drives the drive gear 331 to rotate, which in turn drives the gear ring 332 to rotate. This causes the gear ring 332 to drive the outer cylinder 32 to rotate between the support plates 31. The rotated outer cylinder 32 then moves the ores between the outer cylinder 32 and the inner cylinder 30, causing the ores between the outer cylinder 32 and the inner cylinder 30 to collide and rub against each other, so as to fully clean the clay on the surface of the ores in conjunction with the water flow sprayed by the spray plate 41. Furthermore, the outer cylinder 32 is driven to rotate by the drive mechanism 33, causing the rotated outer cylinder 32 to move the ore passing through the through hole on the inner cylinder 30 and located between the outer cylinder 32 and the inner cylinder 30. This allows the outer cylinder 32 to scrub the ore between the outer cylinder 32 and the inner cylinder 30, and the water flow sprayed by the spray plate 41 ensures that the clay on the surface of the ore is thoroughly washed away. Additionally, as the outer cylinder 32 rotates, the ore undergoes a second classification through the through hole on the outer cylinder 32. Specifically, the drive motor 330 drives the gear 331 and the gear ring 332. When the outer cylinder 32 rotates, the rotated outer cylinder 32 performs a second classification of the ore through the screen holes 320 on it: the ore with a larger diameter is still inside the outer cylinder 32 for washing, and is finally discharged from the outer cylinder 32 through multiple discharge ports 321 on the outer cylinder 32; the ore with a smaller diameter can pass through the screen holes 320 on the outer cylinder 32 and be discharged directly from the outer cylinder 32. The ore of different diameter grades is collected separately at the discharge port 301, the discharge port 321 and the lower end of the screen holes 320, so that the ore can be classified at the same time as being washed. After the ore is washed and graded, ore of different diameter grades is separated from the inner cylinder 30 and outer cylinder 32 through the discharge port 301, the discharge port 321 and the screen hole 320 respectively. At this time, the receiving plate 10 is set to receive the washed and graded ore, and the separation between ore and mud and water is achieved through the filter holes on the receiving plate 10.

[0034] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An ore washing and grading device, comprising a mounting base (1), wherein a feeding assembly (2) is provided on one side of the upper end of the mounting base (1), characterized in that, Also includes: The grading component (3) includes an inner cylinder (30), the two ends of which are mounted on the upper end of the mounting base (1) via support plates (31). An outer cylinder (32) is sleeved on the outer side of the inner cylinder (30). The outer cylinder (32) is rotatably mounted between the two support plates (31). A driving mechanism (33) is provided at one end of the outer cylinder (32). The driving mechanism (33) is used to drive the outer cylinder (32) to rotate. Both the inner cylinder (30) and the outer cylinder (32) are provided with through holes for grading the ore. The cleaning component (4) includes a wetting mechanism (40) which is disposed on the feeding component (2). A spray plate (41) is disposed on the upper side of the inner cylinder (30). The spray plate (41) can transport and spray water along the axial direction of the inner cylinder (30). A stirring mechanism (42) is disposed in the middle of the inner cylinder (30). The stirring mechanism (42) is used to stir and reverse transport the ore into the inner cylinder (30).

2. The ore washing and grading device according to claim 1, characterized in that, The feeding assembly (2) includes a feeding pipe (20), which is mounted on the upper end of the mounting base (1) via a mounting plate. One end of the feeding pipe (20) is rotatably connected to one end of the inner cylinder (30), and the other end of the feeding pipe (20) is provided with a hopper (21).

3. The ore washing and grading device according to claim 1, characterized in that, The inner cylinder (30) is inclined through the support plate (31). The end of the inner cylinder (30) facing the feeding assembly (2) is higher than the end of the inner cylinder (30) away from the feeding assembly (2). The inner cylinder (30) includes a grading hole (300). The grading hole (300) is evenly arranged on the outside of the inner cylinder (30). The lower side of the end of the inner cylinder (30) away from the feeding assembly (2) is provided with a discharge port (301).

4. The ore washing and grading device according to claim 1, characterized in that, The axis of the outer cylinder (32) coincides with the central axis of the inner cylinder (30). The outer cylinder (32) is uniformly provided with sieve holes (320), and a plurality of discharge ports (321) are uniformly provided along its circumference at the end of the outer cylinder (32) away from the feeding assembly (2).

5. The ore washing and grading device according to claim 1, characterized in that, The drive mechanism (33) includes a drive motor (330), which is mounted on the support plate (31) near the feeding assembly (2). The output end of the drive motor (330) is provided with a drive gear (331), and a toothed ring (332) is provided on the outer side of the outer cylinder (32). The toothed ring (332) meshes with the drive gear (331).

6. The ore washing and grading device according to claim 2, characterized in that, The wetting mechanism (40) includes an annular tube (400), which is disposed on the outside of the hopper (21) by means of a locking block. A plurality of nozzles (401) are evenly disposed on the annular tube (400) along its circumference. The nozzles (401) are connected to the annular tube (400). The nozzles (401) are disposed inside the hopper (21), and a connecting pipe is disposed on the annular tube (400).

7. The ore washing and grading device according to claim 1, characterized in that, The spray plate (41) is provided with a water inlet pipe at one end away from the feeding assembly (2), and water outlet holes (410) are uniformly provided at the lower end of the spray plate (41), and the diameter of the water outlet holes (410) gradually increases in the direction away from the water inlet pipe.

8. The ore washing and grading device according to claim 1, characterized in that, The stirring mechanism (42) includes a stirring motor (420). The stirring motor (420) is mounted on the upper end of the mounting base (1) away from the feeding assembly (2) via a mounting bracket. The output end of the stirring motor (420) is connected to the rotating shaft (421) via a coupling. The rotating shaft (421) is rotatably arranged inside the inner cylinder (30). The rotating shaft (421) is provided with multiple spiral blades (422). Multiple stirring units (423) are arranged between the spiral blades (422). The stirring units (423) are evenly arranged around the rotating shaft (421), and the stirring units (423) are spaced apart from the spiral blades (422).

9. The ore washing and grading device according to claim 8, characterized in that, The stirring unit (423) includes a fixed rod (4230), a lifting rod (4231) is slidably arranged on the outside of the fixed rod (4230), and a buffer spring (4232) is arranged between the lifting rod (4231) and the fixed rod (4230), the buffer spring (4232) being located inside the lifting rod (4231).

10. The ore washing and grading device according to claim 1, characterized in that, A receiving plate (10) is provided below the grading component (3). The receiving plate (10) is provided with filter holes and is used to receive the cleaned and graded ore.

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