A laboratory small-scale automated grinding, classifying and screening device

Abstract

This utility model discloses a small-scale automated grinding, grading, and screening device for laboratory use, comprising a housing. A feed hopper, extending through and into the interior of the housing, is fixedly installed at the top of the housing. A support platform is fixedly installed at the right end of the housing, and a first motor is fixedly installed at the top of the support platform. A first rotating rod, extending through and into the interior of the housing, is fixedly installed at the output end of the first motor. A second rotating rod, extending through and into the right end of the housing, is rotatably connected to the left side wall of the inner cavity of the housing. Grinding rollers, located inside the housing, are installed on the outside of both the first and second rotating rods. The gap between the grinding rollers is adjustable (adjustment range: 0.3mm~1mm). This utility model offers high efficiency, solving the technical problem that in laboratory flotation, minerals must first be ground and then screened into collection frames of different particle sizes, which is not only cumbersome but also inefficient.

Description

Technical Field

[0001] This utility model relates to the field of mineral processing equipment technology, and in particular to a small-scale automated grinding, grading and screening device for laboratory use. Background Technology

[0002] The pure minerals used in flotation experiments can be divided into metallic and non-metallic minerals. Before flotation, the ore needs to be ground, and then sieved into different collection frames according to the size of the ground material. However, traditional grinding tools are prone to sample spillage and contamination during both grinding and sieving processes. In addition, a simple mortar and pestle lacks sieving function, and materials of varying degrees of grinding are often mixed together and not sieved in time, reducing grinding efficiency. Summary of the Invention

[0003] The purpose of this invention is to solve the technical problems of cumbersome operation and low work efficiency caused by grinding, classifying and screening pure minerals in the flotation process, and to provide a small-scale automated grinding, classifying and screening device for laboratories with high work efficiency.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a small-scale automated grinding, grading, and sieving device for laboratories, comprising a housing, a feeding hopper fixedly installed at the top of the housing, one end of the feeding hopper penetrating the housing and extending into the interior of the housing, a support platform fixedly installed at the right end of the housing, a first motor fixedly installed at the top of the support platform, a first rotating rod fixedly installed at the output end of the first motor with one end penetrating and extending into the interior of the housing, a second rotating rod rotatably connected to the left side wall of the inner cavity of the housing with one end penetrating and extending to the right end of the housing, the second rotating rod being located directly behind the first rotating rod, grinding rollers fixedly installed on the portions of the first and second rotating rods located inside the housing, gears fixedly installed on the portions of the first and second rotating rods located outside the housing, the two gears meshing with each other, and the inner wall of the housing... Three horizontal plates are fixedly installed on opposite sides of the box. Two T-shaped rods are fixedly installed on the top of the horizontal plates. The four T-shaped rods on the same horizontal plane are movably connected to the screening plate. A spring is fixedly installed on the bottom of the horizontal side of the T-shaped rod. The bottom of the spring is fixedly connected to the top of the screening plate. Three round rods are rotatably connected to the inner wall of the box. The three round rods extend from the left side to the right side of the inner wall of the box. The three round rods are located below the three horizontal plates. Two eccentric wheels are fixedly installed on each round rod. The two eccentric wheels on each round rod are located inside the box. A drive assembly for driving the three round rods is provided at the right end of the box. Three discharge frames are fixedly installed on the front surface of the box. One end of the three discharge frames passes through and extends into the interior of the box. The three discharge frames are located directly in front of the three screening plates. This automated grinding, grading, and screening device effectively crushes ore materials through a first rotating rod, a second rotating rod, a grinding roller, a first motor, and gears. Then, with the use of a T-shaped rod, a horizontal plate, a screening plate, a round rod, an eccentric wheel, a drive assembly, and a discharge frame, it can effectively grade and screen ore materials with high screening efficiency.

[0005] Furthermore, baffles are fixedly installed on opposite sides of the inner wall of the housing, and the baffles are located between the grinding roller and the T-shaped rod. By setting the baffles, the material can be blocked when it falls, preventing the material from falling outside the T-shaped rod and thus affecting the subsequent screening operation.

[0006] Furthermore, the screening plate includes a horizontal plate, and the four T-shaped rods on the same horizontal plane are all movably connected to the horizontal plate. The bottom end of the spring is fixedly connected to the top end of the horizontal plate. A mounting groove is formed on the front surface of the horizontal plate, and a screen is fixedly installed inside the mounting groove. Two partitions are fixedly installed at the top end of the horizontal plate, with the two partitions located on the left and right sides of the mounting groove, respectively. By limiting the screening plate, materials can fall from the screen during use, while the partitions prevent material deviation.

[0007] Furthermore, the aperture of the three screens gradually decreases from top to bottom, and the horizontal plate is inclined. By limiting the three screens, grading and screening can be performed, while limiting the horizontal plate facilitates the subsequent discharge of ore materials.

[0008] Furthermore, the drive assembly includes a second motor, which is fixedly installed at the right end of the housing. The second motor is located below a round rod near the bottom of the housing. A first sprocket is fixedly installed at the output end of the second motor. Sprockets located on the right side of the housing are fixedly installed on the outside of each of the three round rods. The three round rods are divided into a first round rod, a second round rod, and a third round rod. The first round rod is equipped with a second sprocket, the second round rod is equipped with a third sprocket and a fourth sprocket with equal gear diameters, and the third round rod is equipped with a fifth sprocket and a sixth sprocket with equal gear diameters.

[0009] The first and sixth sprockets are connected by chain drive with a gear ratio of 1:3; the fifth and fourth sprockets are connected by chain drive with a gear ratio of 3:2; the third and second sprockets are connected by chain drive with a gear ratio of 2:1. A protective cover is fixedly installed on the right end of the housing, located outside the three round rods and the second motor. A drive assembly is provided to rotate the three round rods, facilitating subsequent material unloading.

[0010] Furthermore, a triangular guide plate is fixedly installed at the bottom of the inner cavity of the box, and a rectangular frame is fixedly installed on the front surface of the box. One end of the rectangular frame penetrates and extends into the interior of the box, and the rectangular frame is located directly in front of the triangular guide plate. By providing the triangular guide plate, the material at the bottom of the inner cavity of the box can be guided, and the rectangular frame facilitates the discharge of the material at the bottom of the inner cavity of the box.

[0011] In summary, the beneficial effects of this utility model are as follows:

[0012] This utility model relates to a small-scale automated grinding, grading, and screening device for laboratories. It has the advantage of high working efficiency and solves the technical problem that in the laboratory flotation process, it is necessary to first grind the minerals and then screen them into collection frames of different particle sizes according to the size of the ore material. This process is not only cumbersome but also has low working efficiency. Attached Figure Description

[0013] Figure 1 This is a front view of the laboratory-scale automated grinding, grading, and sieving device of this utility model;

[0014] Figure 2 This is a cross-sectional view of the laboratory-scale automated grinding, grading, and sieving device of this utility model;

[0015] Figure 3 This is a schematic diagram showing the connection relationship between the support platform and the first electric motor of this utility model;

[0016] Figure 4 This is a top view of the connection of the screening plate of this utility model;

[0017] Figure 5 This is a schematic diagram showing the connection relationship between part of the box body and the lower horizontal plate of this utility model;

[0018] Figure 6 This is a schematic diagram showing the connection relationship between the round rod and the eccentric wheel of this utility model;

[0019] In the diagram: 1. Box body; 2. Feed hopper; 3. Support platform; 4. First motor; 5. First rotating rod; 6. Second rotating rod; 7. Grinding roller; 8. Gear; 9. Horizontal plate; 10. T-shaped rod; 11. Screening plate; 111. Horizontal plate; 112. Mounting groove; 113. Screen; 114. Partition plate; 12. Spring; 13. Round rod; 14. Eccentric wheel; 15. Drive assembly; 151. Second motor; 152. First sprocket; 153. Second sprocket; 154. Third sprocket; 155. Fourth sprocket; 156. Fifth sprocket; 157. Sixth sprocket; 158. Chain; 159. Protective cover; 16. Discharge frame. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-6This utility model provides a small-scale automated grinding, grading, and sieving device for laboratories, comprising a housing 1, a feeding hopper 2 fixedly installed at the top of the housing 1, one end of the feeding hopper penetrating the housing and extending into the interior of the housing, a support platform 3 fixedly installed at the right end of the housing 1, a first motor 4 fixedly installed at the top of the support platform 3, a first rotating rod 5 fixedly installed at the output end of the first motor 4, one end of which penetrates and extends into the interior of the housing 1, a second rotating rod 6 rotatably connected to the left side wall of the inner cavity of the housing 1, one end of which penetrates and extends to the right end of the housing 1, the second rotating rod 6 being located directly behind the first rotating rod 5, grinding rollers 7 fixedly installed on the portions of the first rotating rod 5 and the second rotating rod 6 located inside the housing, gears 8 fixedly installed on the portions of the first rotating rod 5 and the second rotating rod 6 located outside, the two gears 8 meshing with each other, three horizontal plates 9 fixedly installed on opposite sides of the inner cavity wall of the housing 1, the top of the horizontal plates 9 being fixed Two T-shaped rods 10 are installed. The exterior of the four T-shaped rods 10 on the same horizontal plane is movably connected to the screening plate 11. The screening plate is replaceable and can be replaced according to different particle size requirements. A spring 12 is fixedly installed on the bottom side of the T-shaped rod 10. The bottom end of the spring 12 is fixedly connected to the top end of the screening plate 11. Three round rods 13 are rotatably connected to the inner wall of the box body 1. The three round rods extend from the left side to the right side of the inner wall of the box body. The three round rods 13 are respectively located below the three horizontal plates 9. Two eccentric wheels 14 are fixedly installed on each round rod 13. The two eccentric wheels on each round rod 13 are located inside the box body 1. A drive assembly 15 for driving the three round rods 13 is provided at the right end of the box body 1. Three discharge frames 16 are fixedly installed on the front surface of the box body 1. One end of the three discharge frames penetrates and extends into the interior of the box body 1. The three discharge frames 16 are respectively located in front of the three screening plates 11. The automated grinding, grading, and screening device of this utility model can effectively crush ore materials through a first rotating rod, a second rotating rod, a grinding roller, a first motor, and gears. Then, with the use of a T-shaped rod, a horizontal plate, a screening plate, a round rod, an eccentric wheel, a drive assembly, and a discharge frame, it can effectively grade and screen ore materials with high screening efficiency.

[0022] In one embodiment, baffles are fixedly installed on opposite sides of the inner wall of the housing 1, and the baffles are located between the grinding roller and the T-shaped rod 10. By providing baffles, the material can be blocked when the ore falls, preventing the material from falling outside the T-shaped rod and thus affecting the subsequent screening operation.

[0023] In one embodiment, the screening plate 11 includes a horizontal plate 111. The four T-shaped rods 10 on the same horizontal plane are movably connected to the horizontal plate 111. The bottom end of the spring 12 is fixedly connected to the top end of the horizontal plate 111. A mounting groove 112 is formed on the front surface of the horizontal plate 111. A screen 113 is fixedly installed inside the mounting groove 112. Two partitions 114 are fixedly installed at the top end of the horizontal plate 111, located on the left and right sides of the mounting groove 112, respectively. By limiting the screening plate, materials can fall from the screen during use. Simultaneously, the partitions can block the materials and prevent them from shifting.

[0024] In one embodiment, the aperture of the three screens gradually decreases from top to bottom, and the horizontal plate 111 is inclined. By defining the three screens, grading and screening can be performed, while defining the horizontal plate facilitates subsequent ore discharge.

[0025] In one embodiment, the drive assembly 15 includes a second motor 151. The second motor 151 is fixedly installed at the right end of the housing 1. The second motor is located below the round rod 13 adjacent to the bottom of the housing. A first sprocket 152 is fixedly installed at the output end of the second motor 151. Sprockets located on the right side of the housing are fixedly installed on the outside of the three round rods. The three round rods 13 are divided into a first round rod, a second round rod, and a third round rod. The first round rod is equipped with a second sprocket. The second round rod is equipped with a third sprocket and a fourth sprocket with equal gear diameters. The third round rod is equipped with a fifth sprocket and a sixth sprocket with equal gear diameters. The first sprocket and the sixth sprocket are connected by chain drive with a gear diameter ratio of 1:3. The fifth sprocket and the fourth sprocket are connected by chain drive with a gear diameter ratio of 3:2. The third sprocket and the second sprocket are connected by chain drive with a gear diameter ratio of 2:1. A protective cover 159 located outside the three round rods and the second motor is fixedly installed at the right end of the housing. By incorporating a drive assembly, the three cylindrical rods can be rotated, facilitating subsequent material unloading.

[0026] Specifically, round rod 1 is equipped with a second sprocket, round rod 2 is equipped with a third and fourth sprocket with equal gear diameters, and round rod 3 is equipped with a fifth and sixth sprocket with equal gear diameters. The first sprocket of the second motor and the sixth sprocket of round rod 3 are connected by chain drive, with a gear diameter ratio of 1:3; the fifth sprocket of round rod 3 and the fourth sprocket of round rod 2 are connected by chain drive, with a gear diameter ratio of 3:2; and the third sprocket of round rod 2 and the second sprocket of round rod 1 are connected by chain drive, with a gear diameter ratio of 2:1.

[0027] In one embodiment, a triangular guide plate is fixedly installed at the bottom of the inner cavity of the box, and a rectangular frame is fixedly installed on the front surface of the box. One end of the rectangular frame penetrates and extends into the interior of the box 1, and the rectangular frame is located directly in front of the triangular guide plate. By providing the triangular guide plate, the material at the bottom of the inner cavity of the box can be guided, and the rectangular frame facilitates the discharge of the material at the bottom of the inner cavity of the box.

[0028] The working principle of this utility model's small-scale automated grinding, grading, and sieving device for laboratories is as follows:

[0029] When in use, the ore material is poured from the feed hopper 2 into the interior of the box 1, and then the first motor 4 and the second motor 151 are started at the same time. The corresponding collection frame is placed in front of the discharge frame 16 and the rectangular frame. The first motor 4 can drive the first rotating rod 5 to rotate, and the second rotating rod 6 can be driven to rotate under the meshing of the two gears 8, so that the ore material can be ground by the two grinding rollers 7.

[0030] After grinding, the material falls onto the top of the upper screen 113. The second motor 151 drives the first sprocket 152 to rotate. Under the transmission of the chain 158, the second sprocket 153, the third sprocket 154, the fourth sprocket 155, the fifth sprocket 156, the sixth sprocket 157, the round rod 13, and the eccentric wheel 14 can rotate. When the outer side of the eccentric wheel 14 contacts the horizontal plate 111, it can push the horizontal plate 111 upward. When the outer side of the eccentric wheel 14 does not contact the horizontal plate 111, the elastic force of the spring 12 can restore the horizontal plate 111 to its original state, thereby shaking the screening plate 11 and speeding up the screening efficiency. At the same time, different vibration frequencies can be achieved depending on the diameter of the sprocket.

[0031] When the material above the upper screen 113 is smaller than the aperture of the upper screen 113, the material can fall for primary screening. When the material above the middle screen 113 is smaller than the aperture of the middle screen 113, the material can fall for secondary screening. When the material above the lower screen 113 is smaller than the aperture of the lower screen 113, the material can fall for tertiary screening. Finally, the ore after screening can be discharged from the three discharge frames and the rectangular frame, which facilitates the grading and screening of ore materials and improves screening efficiency.

[0032] This utility model relates to a small-scale automated grinding, grading, and screening device for laboratories. It has the advantage of high working efficiency and solves the technical problem that in the laboratory flotation process, it is necessary to first grind the minerals and then screen them into collection frames of different particle sizes according to the size of the ore material. This process is not only cumbersome but also has low working efficiency.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A laboratory benchtop automated milling classifying sieving apparatus, characterized in that: The device includes a housing, with a feed hopper fixedly installed at the top of the housing. One end of the feed hopper penetrates the housing and extends into its interior. A support platform is fixedly installed at the right end of the housing, and a first motor is fixedly installed at the top of the support platform. A first rotating rod, with one end penetrating and extending into the housing, is fixedly installed at the output end of the first motor. A second rotating rod, with one end penetrating and extending to the right end of the housing, is rotatably connected to the left side wall of the housing's inner cavity. The second rotating rod is located directly behind the first rotating rod. Grinding rollers are fixedly installed on the portions of the first and second rotating rods inside the housing, and gears are fixedly installed on the portions of the first and second rotating rods outside the housing. The two gears mesh with each other. Three horizontal plates are fixedly installed on opposite sides of the inner cavity wall of the housing. Two T-shaped rods are fixedly installed at the top of the box. The four T-shaped rods on the same horizontal plane are movably connected to the screening plate. A spring is fixedly installed at the bottom of the horizontal side of the T-shaped rod. The bottom end of the spring is fixedly connected to the top of the screening plate. Three round rods are rotatably connected to the inner wall of the box. The three round rods extend from the left side to the right side of the inner wall of the box. The three round rods are respectively located below the three horizontal plates. Two eccentric wheels are fixedly installed on each round rod. The two eccentric wheels on each round rod are located inside the box. A drive assembly for driving the three round rods is provided at the right end of the box. Three discharge frames are fixedly installed on the front surface of the box. One end of the three discharge frames passes through and extends into the interior of the box. The three discharge frames are respectively located in front of the three screening plates.

2. A laboratory benchtop automated milling classifying and sieving apparatus as claimed in claim 1, wherein: Baffles are fixedly installed on opposite sides of the inner cavity wall of the box, and the baffles are located between the grinding roller and the T-shaped rod.

3. A laboratory benchtop automated milling classifying and sieving apparatus as claimed in claim 2, wherein: The screening plate includes a horizontal plate. The four T-shaped rods on the same horizontal plane are movably connected to the horizontal plate. The bottom end of the spring is fixedly connected to the top end of the horizontal plate. An installation groove is provided on the front surface of the horizontal plate. A screen is fixedly installed inside the installation groove. Two partitions are fixedly installed at the top end of the horizontal plate. The two partitions are located on the left and right sides of the installation groove, respectively.

4. The laboratory-scale automated grinding, grading, and sieving device according to claim 3, characterized in that: The aperture of the three screens gradually decreases from top to bottom, and the horizontal plate is inclined.

5. A small-scale automated grinding, grading, and sieving device for laboratories according to claim 4, characterized in that: The drive assembly includes a second motor, which is fixedly installed at the right end of the housing. The second motor is located below a round rod near the bottom of the housing. A first sprocket is fixedly installed at the output end of the second motor. Sprockets located on the right side of the housing are fixedly installed on the outside of the three round rods. The three round rods are divided into a first round rod, a second round rod, and a third round rod. The first round rod is equipped with a second sprocket, the second round rod is equipped with a third sprocket and a fourth sprocket with equal gear diameters, and the third round rod is equipped with a fifth sprocket and a sixth sprocket with equal gear diameters. The first sprocket and the sixth sprocket are connected by chain drive with a gear diameter ratio of 1:3; the fifth sprocket and the fourth sprocket are connected by chain drive with a gear diameter ratio of 3:2; the third sprocket and the second sprocket are connected by chain drive with a gear diameter ratio of 2:1; and a protective cover located outside the three round rods and the second motor is fixedly installed on the right end of the housing.

6. A laboratory benchtop automated milling classifying and sieving apparatus as claimed in claim 5, wherein: A triangular guide plate is fixedly installed at the bottom of the inner cavity of the box, and a rectangular frame is fixedly installed on the front surface of the box. One end of the rectangular frame passes through and extends into the interior of the box, and the rectangular frame is located directly in front of the triangular guide plate.

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