Ball mill with noise reduction function

Abstract

The utility model relates to ball mill technical field, especially a ball mill with noise reduction function, including ball mill body, the ball mill body left -hand end intercommunication has the spiral feeder for feeding, spiral feeder upper end intercommunication has the feed pipe, is equipped with the upper cover above the feed pipe, be equipped with the noise reduction mechanism on the feed pipe, the noise reduction mechanism includes the casing, is equipped with the annular groove on the casing inner wall, the annular groove inner end opening is sealed up by the annular plate, and the annular groove of annular plate outside is the gas storage cavity, is equipped with the annular hole on the annular plate, the annular hole sets up the outside of the butt joint part of feed pipe and upper cover, is equipped with the elastic ring in the annular hole, and the elastic ring wraps the butt joint of feed pipe and cylinder outside, the casing is connected with the inflation member for the inflation in the gas storage cavity. The utility model can carry out sound insulation to the feed mechanism that sets up outside the ball mill, to reach the purpose that reduces the noise.

Description

Technical Field

[0001] This utility model relates to the field of ball mill technology, and in particular to a ball mill with noise reduction function. Background Technology

[0002] Ball mills are a type of crushing and mixing equipment widely used in industries such as mining, building materials, chemicals, and metallurgy. Their principle is based on a combination of impact crushing and grinding crushing. The grinding media inside the mill are driven by the return shell to forcefully process the material with mechanical force, so as to reduce the particle size (fineen) of the material and achieve highly uniform mixing of multi-component materials. The utility model patent CN221847382U discloses "A Ball Mill Cylinder Structure with Noise Reduction Function". It utilizes a drive motor, feed hopper, feeding shell, connecting pipe, and feeding auger to work together. When material needs to be fed into the cylinder, it is poured into the feeding shell through the feed hopper. The drive motor then rotates the feeding auger, conveying the material into the cylinder body. The material can then be fed into the cylinder body through the connecting pipe and feed pipe. Although the above structure reduces noise in the ball mill, the open feed inlet, as mentioned in the authorized publication CN220919434U "A Noise-Reducing Ball Mill", means that noise generated inside the ball mill will still be transmitted through the untreated feed inlet, resulting in noise pollution during operation. Utility Model Content

[0003] In view of the above situation and to overcome the defects of the existing technology, the purpose of this utility model is to provide a ball mill with noise reduction function, which can insulate the external feeding mechanism of the ball mill to achieve the purpose of noise reduction.

[0004] The technical solution of this utility model is as follows: it includes a ball mill body, the left end of which is connected to a spiral feeder for feeding materials, the upper end of which is connected to a feed pipe, and an upper cover is provided above the feed pipe. The upper cover is composed of a top plate and a cylinder, the lower end of which is coaxially in contact with the feed pipe, and a noise reduction mechanism is provided on the feed pipe. The noise reduction mechanism includes a housing, which is movably sleeved on the feed pipe and the cylinder. The housing is detachably connected to the top plate of the upper cover. An annular groove is provided on the inner wall of the housing. The opening at the inner end of the annular groove is sealed by an annular plate. The annular groove on the outer side of the annular plate is an air storage chamber. An annular hole is provided on the annular plate. The annular hole is located on the outer side of the joint between the feed pipe and the upper cover. An elastic ring is provided in the annular hole. The elastic ring wraps around the outer side of the joint between the feed pipe and the cylinder. An inflation component for inflating the air storage chamber is connected to the housing.

[0005] The beneficial effects of this utility model are: This invention is simple to operate. The top cover can rotate along the central axis of the rotating shaft, which can easily and quickly open or close the feed pipe. When the ball mill body is operating, the hydraulic rod drives the shell and the gas storage box to move upward, so that the elastic ring is aligned with the annular groove. Rotating the screw two causes the piston plate to press the gas in the gas storage box into the gas storage chamber, so that the elastic ring undergoes elastic deformation, expands and enters the annular groove, and seals the annular groove, thereby achieving sound insulation and noise reduction. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the present invention (screw 1 is not sectioned). Figure 3 This is a utility model Figure 2 A magnified view of a section at point A in the middle; Figure 4 This is a schematic diagram of the connection between the feed pipe, the noise reduction mechanism, and the hydraulic rod of this utility model; Figure 5 This is a schematic diagram of the structure of the top cover of this utility model.

[0007] The attached diagram is labeled as follows: 1. Ball mill body, 2. Screw feeder, 3. Feed pipe, 4. Shell, 5. Air storage box, 6. Annular plate, 7. Piston plate, 8. Hydraulic rod, 9. Annular hole, 10. Elastic ring, 11. Top cover, 11a. Top plate, 11b. Cylinder, 12. Screw one, 13. Rotating shaft, 14. Annular groove, 15. Screw two, 16. Nut, 17. Handwheel, 18. Air hole. Detailed Implementation

[0008] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: like Figures 1-5 As shown, a ball mill with noise reduction function includes a ball mill body 1. The left end of the ball mill body 1 is connected to a spiral feeder 2 for feeding materials. The upper end of the spiral feeder 2 is connected to a feed pipe 3. An upper cover 11 is provided above the feed pipe 3. The upper cover 11 is composed of a top plate 11a and a cylinder 11b. The outer diameter of the cylinder 11b is the same as the outer diameter of the feed pipe 3. The lower end of the cylinder 11b is coaxially in contact with the feed pipe 3. A noise reduction mechanism is provided on the feed pipe 3. The noise reduction mechanism includes a housing 4, which is a cylindrical body with openings at both ends. The housing 4 is movably sleeved on the feed pipe 3 and the cylinder 11b. The housing 4 is detachably connected to the top plate 11a of the upper cover 11. An annular groove is provided on the inner wall of the housing 4. The opening at the inner end of the annular groove is sealed by an annular plate 6. The annular groove on the outer side of the annular plate 6 is an air storage chamber. An annular hole 9 is provided on the annular plate 6. The annular hole 9 is located on the outer side of the joint between the feed pipe 3 and the upper cover 11. An elastic ring 10 is provided in the annular hole 9. The elastic ring 10 is an elastic ring made of rubber. The elastic ring 10 wraps around the outer side of the joint between the feed pipe 3 and the cylinder 11b. An inflation component for inflating the air storage chamber is connected to the housing 4.

[0009] Hydraulic rods 8 are respectively provided on the top surface of the screw feeders 2 located on both sides of the feed pipe 3. The hydraulic rods 8 drive the housing 4 to move upward or downward.

[0010] The top plate 11a is a circular plate made of sound insulation board.

[0011] The top surface of the housing 4 is fixedly provided with two screws 12 on the left and right sides. The two screws 12 move upward and penetrate the top plate 11a respectively. The end of each screw 12 that extends out of the top plate 11a is connected to a nut 16.

[0012] The inflation component includes an air storage box 5, which is a hollow rectangular box with an opening at one end. The opening end of the air storage box 5 is fixedly connected to the housing 4. A piston plate 7 is provided inside the air storage box 5. The front and rear ends and the upper and lower ends of the piston plate 7 are in sliding contact with the inner wall of the air storage box 5. An air hole 18 is provided on the periphery of the housing 4. The air hole 18 connects the air storage box 5 on the left side of the piston plate 7 with the air storage chamber. The piston plate 7 is driven to move to the left or right by the screw 15.

[0013] The left end of the second screw 15 is rotatably connected to the piston plate 7, and the right end of the second screw 15 moves to the right through the side plate of the gas storage box 5 and is threadedly connected to the gas storage box 5. A handwheel 17 is connected to one end of the second screw 15 that extends out of the gas storage box 5.

[0014] The lower end of the outer wall of the cylinder 11b is provided with an upper annular groove, and the upper end of the outer wall of the feed pipe 3 is provided with a lower annular groove. The upper annular groove and the lower annular groove are joined together to form an annular groove 14 with a protrusion facing the central axis of the cylinder 11b. This can enhance the sealing performance at the joint between the feed pipe 3 and the upper cover 11 when the elastic ring 10 is tightened.

[0015] The top surface of the feed pipe 3 is provided with a straight groove, and a rotating shaft 13 is provided in the straight groove. The upper end of the rotating shaft 13 is fixedly connected to the cylinder 11b of the upper cover 11.

[0016] In the initial state, the two hydraulic rods 8 drive the housing 4 to move downwards until the upper end of each screw 12 on the housing 4 is lower than the lower end of the circular tube 11b; During feeding, the upper cover 11 is rotated, and the upper cover 11 rotates along the central axis of the rotating shaft 13. After the cylinder of the upper cover is misaligned with the feeding pipe, the material is fed from the feeding pipe 3. After feeding is completed, the upper cover 11 is rotated so that the cylinder on the upper cover is aligned with the feeding pipe. The outer wall of the lower end of the cylinder 11b and the outer wall of the upper end of the feeding pipe 3 form an annular groove 14. Then, the hydraulic rod 8 is activated, which drives the housing 4 to move upward until the upper end of the housing 4 contacts the top plate 11a. The screw 12 passes through the top plate 11a and then through the nut 16. The screw 12 is positioned so that the elastic ring 10 corresponds to the annular groove 14. Then, the handwheel 17 is turned so that the screw 15 pushes the piston plate 7 toward the housing 4. When the piston plate 7 moves toward the housing 4, the gas in the gas storage box 5 is forced into the gas storage chamber through the gas hole 18. At this time, the gas squeezes the elastic ring 10, causing the elastic ring 10 to undergo elastic deformation and expand into the annular groove 14, sealing the annular groove 14. This seals the connection between the cylinder 11b and the feed pipe 3, thereby achieving sealing and sound insulation of the ball mill.

[0017] The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Any equivalent or equivalent modifications or substitutions to the technical solutions of the present utility model without departing from the spirit of the present utility model or the scope of disclosure shall fall within the protection scope of the present utility model.

Claims

1. A ball mill with noise reduction function, comprising a ball mill body (1), wherein the left end of the ball mill body (1) is connected to a screw feeder (2) for feeding material, and the upper end of the screw feeder (2) is connected to a feed pipe (3), characterized in that, The feed pipe (3) is provided with an upper cover (11), which is composed of a top plate (11a) and a cylinder (11b). The lower end of the cylinder (11b) is in coaxial contact with the feed pipe (3). The feed pipe (3) is provided with a noise reduction mechanism. The noise reduction mechanism includes a housing (4), which is movably sleeved outside the feed pipe (3) and the cylinder (11b). The housing (4) is detachably connected to the top plate (11a) of the upper cover (11). An annular groove is provided on the inner wall of the housing (4). The opening at the inner end of the annular groove is blocked by an annular plate (6). The annular groove on the outer side of the annular plate (6) is a gas storage chamber. An annular hole (9) is provided on the annular plate (6). The annular hole (9) is located on the outer side of the joint between the feed pipe (3) and the upper cover (11). An elastic ring (10) is provided inside the annular hole (9). The elastic ring (10) wraps around the outer side of the joint between the feed pipe (3) and the cylinder (11b). An inflation component for inflating the gas storage chamber is connected to the housing (4).

2. A ball mill with noise reduction function according to claim 1, characterized in that, Hydraulic rods (8) are respectively provided on the top surface of the screw feeders (2) located on both sides of the feed pipe (3), and the hydraulic rods (8) drive the housing (4) to move upward or downward.

3. A ball mill with noise reduction function according to claim 1, characterized in that, The top surface of the housing (4) is fixed with screws (12) on the left and right sides. The two screws (12) move upward and penetrate the top plate (11a) respectively. A nut (16) is connected to one end of each screw (12) that extends out of the top plate (11a).

4. A ball mill with noise reduction function according to claim 1, characterized in that, The inflation component includes an air storage box (5), the open end of which is fixedly connected to a housing (4). A piston plate (7) is provided inside the air storage box (5). An air hole (18) is provided on the periphery of the housing (4). The air hole (18) connects the air storage box (5) on the left side of the piston plate (7) with the air storage chamber. The piston plate (7) is driven to move to the left or right by the screw (15).

5. A ball mill with noise reduction function according to claim 4, characterized in that, The left end of the second screw (15) is rotatably connected to the piston plate (7), and the right end of the second screw (15) moves to the right through the side plate of the gas storage box (5) and is threadedly connected to the gas storage box (5). A handwheel (17) is connected to one end of the second screw (15) that extends out of the gas storage box (5).

6. A ball mill with noise reduction function according to claim 1, characterized in that, The lower end of the outer wall of the cylinder (11b) is provided with an upper annular groove, and the upper end of the outer wall of the feed pipe (3) is provided with a lower annular groove. The upper annular groove and the lower annular groove are joined together to form an annular groove (14) with a protrusion facing the central axis of the cylinder (11b).

7. A ball mill with noise reduction function according to claim 1, characterized in that, The feed pipe (3) has a straight groove on its top surface, and a rotating shaft (13) is provided in the straight groove. The upper end of the rotating shaft (13) is fixedly connected to the cylinder (11b) of the cover (11).

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