Ball mill for processing electric smelting chromic oxide powder

Abstract

The utility model relates to the related technical field of electrofused chromic oxide powder processing equipment, in particular to a ball mill for processing electrofused chromic oxide powder. A portal frame is fixedly connected to the top of the bottom plate, a buffer box is arranged in the portal frame, and a screen drum is arranged in the buffer box. Under the matching action of the bottom plate, the portal frame, the buffer box, the screen drum, the circular plate, the feeding opening, the first rotating shaft, the discharging opening and the grinding mechanism, a user can grind electric smelting chromic oxide powder into required meshes according to requirements, and the practicability is improved; the ball mill solves the problems that although an existing ball mill for processing the electric smelting chromic oxide powder can screen the electric smelting chromic oxide powder according to the size and grind the electric smelting chromic oxide powder step by step, due to the fact that the diameter of screen holes in the ball mill cannot be adjusted, a user cannot grind the electric smelting chromic oxide powder into the specified mesh number according to requirements, and the machining efficiency is high. And the practicability is poor.

Description

Technical Field

[0001] This utility model relates to the technical field of electrofused chromium oxide powder processing equipment, specifically a ball mill for electrofused chromium oxide powder processing. Background Technology

[0002] Fused chromium oxide is mainly used in the tapping of special steel, the sluice gate, and large incinerators. It can also be used for coloring ceramics and enamels, rubber, formulating high-temperature coatings, and as an art pigment. It is also used to formulate inks for printing banknotes and securities. The green color of chromium oxide is similar to chlorophyll in plants, making it suitable for camouflage paints that make it difficult to distinguish under infrared photography. It is also widely used in metallurgy, in the production of refractory materials and grinding powders. Furthermore, it can be used as an organic synthesis catalyst and is a high-grade green pigment.

[0003] Utility model patent CN218132285U discloses a ball mill for processing fused chromium oxide powder, belonging to the technical field of fused chromium oxide powder processing equipment. It aims to solve the problem in existing technologies of how to separate fused chromium oxide powder by size for progressive grinding. The mill includes a base plate with an outer cylinder mounted on it. The outer cylinder has a discharge port at its bottom center. A coarse grinding barrel is rotatably mounted inside the outer cylinder, with multiple coarse sieve holes symmetrically arranged through it. Multiple first steel balls are placed inside the coarse grinding barrel. A fine grinding barrel is rotatably mounted between the outer cylinder and the coarse grinding barrel, with multiple fine sieve holes symmetrically arranged through it. The fine grinding barrel is slidably connected to the coarse grinding barrel, forming a fine grinding chamber between them, where multiple second steel balls are placed. This invention separates the fused chromium oxide powder by size and grinds it step by step, so that the fused chromium oxide powder can be discharged in time when it reaches the specified size, thus ensuring the uniformity of grinding and improving the grinding quality.

[0004] However, the above patent still has shortcomings: although the patent can separate the size of the fused chromium oxide powder for grinding step by step, the diameter of the sieve holes inside the device cannot be adjusted, so users cannot grind the fused chromium oxide powder to a specified mesh size according to their needs, which makes it less practical. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a ball mill for processing fused chromium oxide powder, which solves the problem mentioned in the background art that although existing ball mills for processing fused chromium oxide powder can separate the fused chromium oxide powder by size and grind it step by step, the diameter of the sieve holes inside the device cannot be adjusted, which makes it impossible for users to grind the fused chromium oxide powder to a specified mesh size according to their needs, resulting in poor practicality.

[0006] The technical solution of this utility model is:

[0007] A ball mill for processing fused chromium oxide powder includes: a base plate; a gantry frame fixedly connected to the top of the base plate, a buffer box disposed inside the gantry frame, a sieve cylinder disposed inside the buffer box, circular plates fixedly connected to both ends of the sieve cylinder, an inlet opening at the center of one circular plate, and a first rotating shaft fixedly connected to the center of the other circular plate, both the inlet opening and the first rotating shaft being rotatably connected to the buffer box; an outlet opening at the bottom of the buffer box; a grinding mechanism for processing fused chromium oxide powder disposed inside the sieve cylinder; and buffer mechanisms for protecting the device disposed on both sides of the buffer box.

[0008] Preferably, the grinding mechanism includes: a plurality of steel balls disposed inside the sieve cylinder; a plurality of lifting plates uniformly disposed on the inner wall of the sieve cylinder, all of which are fixedly connected to the sieve cylinder; a plurality of filter holes uniformly opened near the lifting plates of the sieve cylinder, the filter holes being staggered with the lifting plates; a motor fixedly connected to the buffer box near the first rotating shaft, the first rotating shaft being fixedly connected to the output end of the motor; auger blades fixedly connected to the outer surfaces of both ends of the sieve cylinder, the two auger blades being arranged in opposite directions; and an auxiliary mechanism for adjusting the mesh size of the fused chromium oxide powder disposed between the two auger blades.

[0009] Preferably, the auxiliary mechanism includes: a fixing ring disposed between the two auger blades; a first bevel gear fixedly connected to the outer surface of the fixing ring; a second bevel gear meshing with the bottom of the first bevel gear; a second rotating shaft fixedly connected to the center of the second bevel gear; a grinding core fixedly connected to the bottom of the second rotating shaft; a grinding ring fixedly connected to the discharge port near the grinding core; the grinding ring cooperating with the grinding core; a cavity opened at the bottom center of the grinding core; a screw disposed inside the cavity; the top end of the screw fixedly connected to the grinding core; an adjusting plate disposed at the bottom of the grinding core; the adjusting plate sleeved on the outer surface of the screw; an adjusting nut disposed at the bottom of the adjusting plate; the adjusting nut threadedly connected to the screw; and a first spring sleeved on the outer surface of the screw located inside the cavity.

[0010] Preferably, a sealing ring is fixedly connected to the top of the adjusting plate, and the sealing ring is adapted to the grinding core.

[0011] Preferably, the buffer mechanism includes: buffer blocks fixedly connected to both sides of the buffer box; sliding rods slidably connected inside each buffer block; the two ends of each sliding rod being fixedly connected to the base plate and the gantry frame, respectively; a second spring provided at both ends of each buffer block; the second springs being sleeved on the outer surface of each sliding rod; a limit plate provided at the end of each second spring away from the buffer block; the limit plate being fixedly connected to each sliding rod; and a damping sleeve provided between the buffer block and the sliding rod, the damping sleeve being fixedly connected to each buffer block.

[0012] Preferably, a limiting ring is fixedly connected to the bottom plate near the discharge port, and a matching collecting cylinder is provided inside the limiting ring.

[0013] Preferably, a connecting ring is rotatably connected to the outer surface of the second rotating shaft, and the connecting ring is fixedly connected to the discharge port through four connecting rods.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] Firstly, through the coordinated action of the base plate, gantry frame, buffer box, sieve cylinder, circular plate, feed port, first rotating shaft, discharge port, and grinding mechanism, this utility model allows users to grind fused chromium oxide powder to the required mesh size according to their needs, thus improving practicality. It solves the problem that although existing ball mills for processing fused chromium oxide powder can separate the powder by size and grind it step by step, the non-adjustable diameter of the sieve holes inside the device prevents users from grinding the powder to the specified mesh size, resulting in poor practicality.

[0016] Secondly, through the coordinated action of the base plate, gantry frame, buffer box, screen cylinder, circular plate, feed port, first rotating shaft, discharge port, and buffer mechanism, this utility model can buffer and release force on the device during the operation of the ball mill, effectively protect the device, extend its service life and reduce the replacement cycle, and solve the problem that the existing ball mills used for electrofused chromium oxide powder processing have poor buffering effect, which leads to high-frequency vibration during the operation of the ball mill, easily damages the device, and reduces its service life and replacement cycle. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a ball mill for processing electrofused chromium oxide powder according to the present invention;

[0018] Figure 2 This is a side sectional view of a ball mill for processing electrofused chromium oxide powder according to the present invention.

[0019] Figure 3This is a schematic diagram of the connection structure between the screen cylinder and the auger blades of this utility model;

[0020] Figure 4 This is a schematic diagram of the auxiliary mechanism structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the buffer mechanism structure of this utility model;

[0022] Figure 6 For the present utility model Figure 5 Enlarged structural diagram at point A in the middle.

[0023] In the picture:

[0024] 1. Base plate; 2. Gantry frame; 3. Buffer box; 4. Screen cylinder; 5. Circular plate; 6. Feed inlet; 7. First rotating shaft; 8. Discharge outlet; 9. Grinding mechanism; 10. Buffer mechanism; 11. Steel ball; 12. Lifting plate; 13. Filter hole; 14. Motor; 15. Screw blade; 16. Auxiliary mechanism; 17. Fixing ring; 18. First bevel gear; 19. Second bevel gear; 20. Second rotating shaft; 21. Grinding core; 22. Grinding ring; 23. Cavity; 24. Screw; 25. Adjusting plate; 26. Adjusting nut; 27. First spring; 28. Sealing ring; 29. ​​Buffer block; 30. Sliding rod; 31. Second spring; 32. Limiting plate; 33. Damping sleeve; 34. Limiting ring; 35. Collecting cylinder; 36. Connecting ring; 37. Connecting rod. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1 to 6 The present invention will describe the above technical solution in detail through the following embodiments:

[0027] A ball mill for processing fused chromium oxide powder includes: a base plate 1; a gantry frame 2 is fixedly connected to the top of the base plate 1, a buffer box 3 is provided inside the gantry frame 2, a sieve cylinder 4 is provided inside the buffer box 3, and circular plates 5 are fixedly connected to both ends of the sieve cylinder 4. A feed inlet 6 is opened at the center of one circular plate 5, and a first rotating shaft 7 is fixedly connected to the center of the other circular plate 5. The feed inlet 6 and the first rotating shaft 7 are rotatably connected to the buffer box 3, and a discharge port 8 is opened at the bottom of the buffer box 3; a grinding mechanism 9 for processing fused chromium oxide powder is provided inside the sieve cylinder 4; buffer mechanisms 10 for protecting the device are provided on both sides of the buffer box 3. The user pours fused chromium oxide into the sieve cylinder 4 through the feed inlet 6, and then starts the grinding mechanism 9. The grinding mechanism 9 drives the sieve cylinder 4 through the first rotating shaft 7. The sieve cylinder 4 rotates inside the buffer box 3 through the cooperation of the feed inlet 6, thereby grinding the fused chromium oxide. While grinding the fused chromium oxide, the buffer mechanism 10 provides buffer protection for the device.

[0028] like Figure 2 and Figure 3 As shown, the grinding mechanism 9 includes: a plurality of steel balls 11 disposed inside the sieve cylinder 4; a plurality of lifting plates 12 evenly disposed on the inner wall of the sieve cylinder 4, all of which are fixedly connected to the sieve cylinder 4; a plurality of filter holes 13 evenly disposed near the lifting plates 12, the filter holes 13 and the lifting plates 12 being staggered; a motor 14 fixedly connected to the buffer box 3 near the first rotating shaft 7, the first rotating shaft 7 being fixedly connected to the output end of the motor 14; auger blades 15 fixedly connected to the outer surfaces of both ends of the sieve cylinder 4, the two auger blades 15 being arranged in opposite directions; and an electrofusion device disposed between the two auger blades 15. The auxiliary mechanism 16 for adjusting the mesh size of chromium oxide powder starts the motor 14. The motor 14 drives the screen cylinder 4 to rotate via the first rotating shaft 7. While the screen cylinder 4 rotates, it drives the lifting plate 12 to rotate. As the lifting plate 12 rotates, it lifts the steel balls inside the screen cylinder 4 to a certain height and then lets them fall freely. The impact force generated when the steel balls fall grinds the fused chromium oxide. The ground fused chromium oxide falls into the buffer box 3 through the filter hole 13. The screen cylinder 4 also drives the auger blades 15 to rotate. The auger blades 15 on both sides continuously push the fused chromium oxide into the discharge port 8.

[0029] like Figure 4As shown, the auxiliary mechanism 16 includes: a fixing ring 17 disposed between two auger blades 15; a first bevel gear 18 fixedly connected to the outer surface of the fixing ring 17; a second bevel gear 19 meshing with the bottom of the first bevel gear 18; a second rotating shaft 20 fixedly connected to the center of the second bevel gear 19; a grinding core 21 fixedly connected to the bottom of the second rotating shaft 20; a grinding ring 22 fixedly connected to the discharge port 8 near the grinding core 21; the grinding ring 22 cooperating with the grinding core 21; a cavity 23 opened at the bottom center of the grinding core 21; a screw 24 disposed inside the cavity 23; the top end of the screw 24 fixedly connected to the grinding core 21; an adjusting plate 25 disposed at the bottom of the grinding core 21; the adjusting plate 25 sleeved on the outer surface of the screw 24; an adjusting nut 26 disposed at the bottom of the adjusting plate 25; the adjusting nut 26 threadedly connected to the screw 24; and the screw 24 being positioned... A first spring 27 is fitted onto the outer surface inside the cavity 23. As the sieve cylinder 4 rotates, it drives the fixed ring 17, which in turn drives the first bevel gear 18. The first bevel gear 18 drives the second bevel gear 19, which in turn drives the second rotating shaft 20. The second rotating shaft 20 drives the grinding core 21 to rotate. As the grinding core 21 rotates, it continuously grinds the fused chromium oxide through the grinding ring 22. The ground powder is discharged through the outlet 8 through the gap between the adjusting plate 25 and the grinding ring 22. When the user needs to adjust the mesh size of the fused chromium oxide powder, he can rotate the adjusting nut 26. The adjusting nut 26 moves up and down on the surface of the screw 24, which in turn controls the adjusting plate 25 to move up and down through the first spring 27, thereby adjusting the size of the gap between the adjusting plate 25 and the grinding ring 22.

[0030] like Figure 5 As shown, a sealing ring 28 is fixedly connected to the top of the adjusting plate 25. The sealing ring 28 is compatible with the grinding core 21 and can prevent fused chromium oxide powder from entering the cavity 23.

[0031] like Figure 5 and Figure 6As shown, the buffer mechanism 10 includes: buffer blocks 29 fixedly connected to both sides of the buffer box 3; sliding rods 30 slidably connected inside each buffer block 29; the two ends of the sliding rods 30 being fixedly connected to the base plate 1 and the gantry frame 2, respectively; second springs 31 are provided at both ends of the buffer blocks 29, and the second springs 31 are respectively sleeved on the outer surface of the sliding rods 30; a limiting plate 32 is provided at the end of the second springs 31 away from the buffer blocks 29, and the limiting plate 32 is fixedly connected to the sliding rods 30; a spacer is provided between the buffer blocks 29 and the sliding rods 30. Damping sleeve 33 is fixedly connected to buffer block 29. When buffer box 3 generates high-frequency vibration, buffer box 3 drives buffer block 29 to slide up and down on the surface of slide rod 30. While buffer block 29 slides on the surface of slide rod 30, it compresses second spring 31 through the cooperation of limit plate 32. Second spring 31 uses its own elastic force to release the force of buffer block 29, thereby achieving the purpose of buffering buffer box 3. The setting of damping sleeve 33 can release the rebound force generated by second spring 31.

[0032] like Figure 2 and Figure 5 As shown, a limiting ring 34 is fixedly connected to the bottom plate 1 near the discharge port 8. The limiting ring 34 has a matching collecting cylinder 35 inside, which can collect the ground fused chromium oxide powder.

[0033] like Figure 4 As shown, a connecting ring 36 is rotatably connected to the outer surface of the second rotating shaft 20. The connecting ring 36 is fixedly connected to the discharge port 8 through four connecting rods 37, which can limit the second rotating shaft 20, allowing the second rotating shaft 20 to rotate flexibly inside the discharge port 8.

[0034] Working principle: The user pours fused chromium oxide into the screen cylinder 4 through the feed port 6, then starts the motor 14. The motor 14 drives the screen cylinder 4 to rotate via the first rotating shaft 7. Simultaneously, the screen cylinder 4 rotates, causing the lifting plate 12 to rotate. As the lifting plate 12 rotates, it lifts the steel balls inside the screen cylinder 4 to a certain height, after which they fall freely. The impact force generated by the falling steel balls grinds the fused chromium oxide. The ground fused chromium oxide falls through the filter holes 13 into the buffer box 3. The screen cylinder 4 also drives the auger blades 15 to rotate. The auger blades 15 on both sides continuously push the fused chromium oxide into the discharge port 8. Simultaneously, the rotation of the screen cylinder 4 drives the fixing ring 17, which in turn drives the first bevel gear 18. The first bevel gear 18 drives the second bevel gear 19, which in turn drives the second rotating shaft 20. The second rotating shaft 20 drives the grinding core 21 to rotate. Simultaneously, the grinding core 21 passes through the filter holes 13 and then passes through the filter holes 13 into the buffer box 3. The grinding ring 22 continuously grinds the fused chromium oxide. The ground powder is discharged from the outlet 8 through the gap between the adjusting plate 25 and the grinding ring 22. When the user needs to adjust the mesh size of the fused chromium oxide powder, the adjusting nut 26 can be rotated. The adjusting nut 26 moves up and down on the surface of the screw 24, which in turn controls the adjusting plate 25 to move up and down through the cooperation of the first spring 27, thereby adjusting the size of the gap between the adjusting plate 25 and the grinding ring 22. The user can grind the fused chromium oxide powder to the required mesh size according to the needs, which improves practicality. This solves the problem that although the existing ball mills used for processing fused chromium oxide powder can separate the fused chromium oxide powder by size and grind it step by step, the diameter of the sieve holes inside the device cannot be adjusted, which makes it impossible for the user to grind the fused chromium oxide powder to the specified mesh size according to the needs, resulting in poor practicality.

[0035] When the buffer box 3 generates high-frequency vibration, the buffer box 3 drives the buffer block 29 to slide up and down on the surface of the slide rod 30. While the buffer block 29 slides on the surface of the slide rod 30, it compresses the second spring 31 through the cooperation of the limiting plate 32. The second spring 31 uses its own elasticity to release the force of the buffer block 29, thereby achieving the purpose of buffering the buffer box 3. The setting of the damping sleeve 33 can release the rebound force generated by the second spring 31. It can buffer and release the force of the device during the operation of the ball mill, effectively protect the device, extend the service life of the device and reduce the replacement cycle. It solves the problem that the existing ball mills used for electrofused chromium oxide powder processing have poor buffering effect, which leads to high-frequency vibration during the operation of the ball mill, which easily damages the device and reduces the service life and replacement cycle of the device.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A ball mill for processing fused chromium oxide powder, comprising: Base plate (1); The features are as follows: a gantry frame (2) is fixedly connected to the top of the base plate (1), a buffer box (3) is provided inside the gantry frame (2), a screen cylinder (4) is provided inside the buffer box (3), and circular plates (5) are fixedly connected to both ends of the screen cylinder (4). An inlet (6) is opened at the center of one of the circular plates (5), and a first rotating shaft (7) is fixedly connected at the center of the other circular plate (5). The inlet (6) and the first rotating shaft (7) are rotatably connected to the buffer box (3), and an outlet (8) is opened at the bottom of the buffer box (3). The sieve cylinder (4) is equipped with a grinding mechanism (9) for processing fused chromium oxide powder; Both sides of the buffer box (3) are provided with buffer mechanisms (10) to protect the device.

2. The ball mill for processing fused chromium oxide powder as described in claim 1, characterized in that: The grinding mechanism (9) includes: The screen cylinder (4) is provided with a number of steel balls (11) inside. A number of lifting plates (12) are evenly arranged on the inner wall of the screen cylinder (4). The lifting plates (12) are all fixedly connected to the screen cylinder (4). A number of filter holes (13) are evenly opened on the screen cylinder (4) near the lifting plates (12). The filter holes (13) and the lifting plates (12) are staggered. The buffer box (3) is fixedly connected to a motor (14) near the first rotating shaft (7). The first rotating shaft (7) is fixedly connected to the output end of the motor (14). Both ends of the screen cylinder (4) are fixedly connected to auger blades (15), and the two auger blades (15) are arranged in opposite directions. An auxiliary mechanism (16) for adjusting the mesh size of fused chromium oxide powder is provided between the two auger blades (15).

3. A ball mill for processing fused chromium oxide powder as described in claim 2, characterized in that: The auxiliary mechanism (16) includes: A fixing ring (17) is provided between the two auger blades (15). A first bevel gear (18) is fixedly connected to the outer surface of the fixing ring (17). A second bevel gear (19) meshes with the bottom of the first bevel gear (18). A second rotating shaft (20) is fixedly connected to the center of the second bevel gear (19). A grinding core (21) is fixedly connected to the bottom of the second rotating shaft (20). A grinding ring (22) is fixedly connected to the discharge port (8) near the grinding core (21). The grinding ring (22) cooperates with the grinding core (21). A cavity (23) is provided at the bottom center of the grinding core (21). A screw (24) is provided inside the cavity (23). The top end of the screw (24) is fixedly connected to the grinding core (21). An adjusting plate (25) is provided at the bottom of the grinding core (21). The adjusting plate (25) is sleeved on the outer surface of the screw (24). An adjusting nut (26) is provided at the bottom of the adjusting plate (25). The adjusting nut (26) is threadedly connected to the screw (24). A first spring (27) is sleeved on the outer surface of the screw (24) located inside the cavity (23).

4. A ball mill for processing electrofused chromium oxide powder as described in claim 3, characterized in that: A sealing ring (28) is fixedly connected to the top of the adjusting plate (25), and the sealing ring (28) is adapted to the grinding core (21).

5. A ball mill for processing electrofused chromium oxide powder as described in claim 1, characterized in that: The buffer mechanism (10) includes: Both sides of the buffer box (3) are fixedly connected to buffer blocks (29), and the interior of each buffer block (29) is slidably connected to a slide rod (30). The two ends of the slide rod (30) are fixedly connected to the base plate (1) and the gantry frame (2) respectively. The buffer block (29) is provided with a second spring (31) at both ends. The second spring (31) is respectively sleeved on the outer surface of the slide rod (30). The end of the second spring (31) away from the buffer block (29) is provided with a limiting plate (32). The limiting plate (32) is fixedly connected to the slide rod (30). A damping sleeve (33) is provided between the buffer block (29) and the slide rod (30). The damping sleeve (33) is fixedly connected to the buffer block (29).

6. A ball mill for processing electrofused chromium oxide powder as described in claim 1, characterized in that: A limiting ring (34) is fixedly connected to the bottom plate (1) near the discharge port (8), and a matching collecting cylinder (35) is provided inside the limiting ring (34).

7. A ball mill for processing fused chromium oxide powder as described in claim 3, characterized in that: The outer surface of the second rotating shaft (20) is rotatably connected to a connecting ring (36), and the connecting ring (36) is fixedly connected to the discharge port (8) through four connecting rods (37).

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