Low-noise cement pipe mill applied to white cement production

Abstract

The utility model discloses a low-noise cement pipe mill applied to white cement production, and relates to the technical field of cement production, the low-noise cement pipe mill comprises a base, supports are fixedly connected to the tops of the two ends of the base, a pipe body is rotationally connected between the two supports, and a driving structure used for driving the pipe body to rotate is installed on the base. Through cooperative arrangement of the pipe body, the containing cavity, the noise reduction cylinder, the springs, the metal particles and other structures, noise generated when the pipe body rotates can enter the noise reduction cylinder through the sound absorption holes, and meanwhile the noise reduction cylinder is in a movable state due to alternate stretching and retracting of the springs at the two ends; the metal particles contained in the noise reduction cylinder can be driven to mutually rub in the noise reduction cylinder to form a damping effect, system energy is consumed through movement and friction of the metal particles, the purpose of reducing noise generated by a system is achieved, and it is avoided as much as possible that an existing tube mill generates large noise in the process of smashing and grinding white cement, and the service life of the tube mill is prolonged. Noise pollution is formed, and the body health of workers is seriously affected.

Description

Technical Field

[0001] The present application relates to the technical field of cement production, and in particular to a low-noise cement tube mill used in white cement production. Background Art

[0002] Tube mills are a very important type of fine grinding equipment in modern industry and one of the most common and important equipment in powder grinding systems. Large tube mills have high production capacity. The only difference between a single-chamber tube mill and a short-barrel ball mill is that its length is greater than its diameter. The material spends a longer time in the tube mill, resulting in a more uniform product fineness and a greater degree of crushing.

[0003] The utility model patent of announcement number CN217288663U proposes a cement tube mill with

[0004] The device comprises a tube body; a compartment bracket mounted within the tube body, which divides the tube body into a first compartment and a second compartment; a grate plate mounted on the compartment bracket; a first corrugated liner plate disposed on the inner wall of the second compartment, the second corrugated liner plate having five corrugated peaks; a second corrugated liner plate disposed on the inner wall of the first compartment, the second corrugated liner plate having four corrugated peaks; the first and second corrugated liner plates being disposed on their respective inner walls, providing a wider range of adaptability; a discharge frame grate plate disposed on the discharge end of the tube body; and a discharge screen plate mounted on the discharge frame grate plate.

[0005] The above-mentioned tube mill generates a lot of noise during the process of crushing and grinding white cement, which causes noise pollution and seriously affects the health of workers. Utility Model Content

[0006] The purpose of the utility model is to solve or at least alleviate the problem that the existing tube mill generates relatively loud noise during the pulverizing and grinding process of white cement, causing noise pollution and seriously affecting the health of workers.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A low-noise cement tube mill used in white cement production includes a base, with brackets fixedly connected to the tops of both ends of the base, a tube body rotatably connected between the two brackets, a driving structure for driving the tube body to rotate is installed on the base, the tube body is a double-layer structure, and a accommodating cavity is formed between the two layers of the tube body. A plurality of noise reduction tubes are arranged in the accommodating cavity, and the two ends of the noise reduction tubes are fixedly connected to the side walls of the accommodating cavity by springs respectively. Metal particles are also contained in the inner cavity of the noise reduction tube, and sound-absorbing holes connected to the inner cavity of the noise reduction tube are opened on the side walls of the noise reduction tube, and the accommodating cavity between adjacent noise reduction tubes is filled with sponge particles.

[0009] By adopting the above technical solution, when in use, the user first introduces the white cement raw material into the tube body from the feed port of the tube body, and then starts the motor to drive the gear to rotate. Since the gear is engaged with the external gear ring fixed on the tube body, the tube body can be driven to rotate between the two brackets. During the rotation process, the steel ball can rise to a certain height along the inner wall of the tube body under the action of centrifugal force, and then the steel ball falls under the action of its own gravity and hits the white cement raw material in the crushing bin to achieve the crushing and grinding of the white cement raw material. The noise generated when the steel ball hits the tube body or the white cement raw material can enter the noise reduction cylinder through the sound absorption hole. At the same time, the noise reduction cylinder is in an active state due to the alternating expansion and contraction of the springs at both ends, which can drive the metal particles contained in the noise reduction cylinder to rub against each other in the noise reduction cylinder to form a damping effect. The movement and friction of the metal particles are used to consume system energy to achieve the purpose of reducing the noise generated by the system, and try to avoid the problem that the existing tube mill will generate large noise during the crushing and grinding of white cement, forming noise pollution and seriously affecting the health of the staff.

[0010] Optionally, a corrugated lining that fits the inner wall of the pipe body is embedded in the inner cavity of the pipe body, and the corrugated lining is fixedly connected to the inner wall of the pipe body.

[0011] By adopting the above technical solution, when the pipe body rotates, the material can be transferred from the pipe body feed port to the pipe body discharge port through the corrugated lining, making it convenient to discharge the crushed and ground white cement raw materials that meet the standards through the pipe body discharge port.

[0012] Optionally, an outer gear ring is sleeved on the outer surface of the tube body and fixedly connected to the outer wall of the tube body. The driving structure includes a motor fixedly connected to the base below the outer gear ring, and a gear is fixedly connected to the output end of the motor. The gear is meshed with the outer gear ring for transmission connection.

[0013] By adopting the above technical solution, when in use, the motor is started to drive the gear to rotate. Since the gear and the outer gear ring fixedly installed on the tube body are engaged with each other, the tube body can be driven to rotate between the two brackets.

[0014] Optionally, a plurality of grate plates are fixedly connected to the inner cavity of the tube body, a crushing bin is formed between two adjacent grate plates, and a plurality of steel balls with different diameters are contained in the crushing bin.

[0015] By adopting the above technical solution, when the tube body rotates, the steel balls can rise to a certain height along the inner wall of the tube body under the action of centrifugal force, and then fall under the action of their own gravity, hitting the white cement raw materials in the crushing bin, thereby achieving the crushing and grinding of the white cement raw materials.

[0016] Optionally, the gap between the grate plates installed near the feed end of the tube body and away from the feed end of the tube body gradually decreases.

[0017] By adopting the above technical solution, white cement raw materials crushed to different diameters can enter different crushing bins for step-by-step grinding under the screening effect of the grate plate, which greatly improves the efficiency of crushing and grinding the white cement raw materials.

[0018] Optionally, the noise reduction tube has a cylindrical structure, and the length of the noise reduction tube is less than the distance between the two layers of the tube body.

[0019] By adopting the above technical solution, the noise reduction tube can move between the two layers of the tube body during the rotation of the tube body, thereby driving the metal particles in the noise reduction tube to move and perform damping and noise reduction work.

[0020] Optionally, the amount of metal particles contained in the noise reduction tube is not less than half of the inner volume of the noise reduction tube, and the diameter of the metal particles is larger than the aperture of the sound absorbing holes opened on the side wall of the noise reduction tube.

[0021] By adopting the above technical solution, the number of metal particles is not less than half of the inner volume of the noise reduction tube, which can greatly improve the noise reduction effect. The diameter of the metal particles is larger than the aperture of the sound-absorbing holes opened on the side wall of the noise reduction tube, which minimizes the leakage of metal particles through the sound-absorbing holes during movement.

[0022] In summary, the beneficial effects of this application are as follows:

[0023] The present application coordinates the structures such as the tube body, the accommodating cavity, the noise reduction tube, the spring and the metal particles. The noise generated when the tube body rotates can enter the noise reduction tube through the sound-absorbing holes. At the same time, the noise reduction tube is in an active state due to the alternating expansion and contraction of the springs at both ends, which can drive the metal particles contained in the noise reduction tube to rub against each other in the noise reduction tube to form a damping effect. The movement and friction of the metal particles are used to consume the energy of the system, so as to achieve the purpose of reducing the noise generated by the system, and try to avoid the problem that the existing tube mill will generate loud noise during the crushing and grinding of white cement, forming noise pollution and seriously affecting the health of the workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall cross-sectional structure of the present utility model;

[0025] Figure 2 This is a schematic diagram of the installation structure of the noise reduction tube of the utility model;

[0026] Figure 3 This is a schematic diagram of the connection structure between the noise reduction tube and the spring of the utility model.

[0027] Explanation of the accompanying symbols: 1. Base; 2. Bracket; 3. Tube body; 4. Corrugated lining; 5. Outer ring gear; 6. Gear; 7. Motor; 8. Grate plate; 9. Steel ball; 10. Accommodating chamber; 11. Noise reduction cylinder; 12. Spring; 13. Metal particles; 14. Sound-absorbing holes; 15. Sponge particles; 16. Crushing bin. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-3 This application is described in further detail.

[0029] See also Figure 1-3 A low-noise cement tube mill used in white cement production includes a base 1 for support, with brackets 2 fixedly connected to the tops of both ends of the base 1, a tube body 3 rotatably connected between the two brackets 2, and a feed port and a discharge port formed at both ends of the tube body 3 respectively.

[0030] A driving structure for driving the tube body 3 to rotate is installed on the base 1. When in use, the raw materials can be introduced into the tube body 3 through the feed port, and then the tube body 3 installed between the two brackets 2 is driven by the driving structure to rotate to crush and grind the raw materials.

[0031] The tube body 3 has a double-layer structure, and a accommodating cavity 10 is formed between the two layers of the tube body 3. A plurality of noise reduction tubes 11 with sound-absorbing function are provided in the accommodating cavity 10. The two ends of the noise reduction tubes 11 are fixedly connected to the side walls of the accommodating cavity 10 through springs 12. Since the springs 12 are elastic, when the tube body 3 rotates, the springs 12 at both ends of the noise reduction tubes 11 alternately expand and contract under the action of the noise reduction tubes 11's own gravity, driving the noise reduction tubes 11 to move in the accommodating cavity 10.

[0032] The inner cavity of the noise reduction tube 11 also contains metal particles 13, and the side wall of the noise reduction tube 11 is provided with sound-absorbing holes 14 connected to the inner cavity of the noise reduction tube 11. When the white cement raw materials are crushed and ground inside the tube body 3 to generate noise, the noise can enter the noise reduction tube 11 through the sound-absorbing holes 14. At the same time, the noise reduction tube 11 is in an active state due to the alternating expansion and contraction of the springs 12 at both ends, which can drive the metal particles 13 contained in the noise reduction tube 11 to rub against each other in the noise reduction tube 11 to form a damping effect. The movement and friction of the metal particles 13 are used to consume system energy, so as to achieve the purpose of reducing the noise generated by the system.

[0033] The accommodating cavity 10 between adjacent noise reduction cylinders 11 is filled with sponge particles 15 . The sponge particles 15 have a porous structure and can further absorb noise through the gaps inside the sponge particles 15 themselves, thereby improving the noise reduction effect.

[0034] Reference Figure 1A corrugated liner 4 is embedded in the inner cavity of the tube body 3 and is fixedly connected to the inner wall of the tube body 3. When the tube body 3 rotates, the corrugated liner 4 can transfer material from the feed port of the tube body 3 to the discharge port of the tube body 3, facilitating the discharge of the crushed and ground white cement raw materials through the discharge port of the tube body 3.

[0035] Reference Figure 1 The outer surface of the tube body 3 is sheathed with an outer gear ring 5 fixedly connected to the outer wall of the tube body 3. The drive structure includes a motor 7 fixedly connected to the base 1 below the outer gear ring 5. The output end of the motor 7 is fixedly connected to a gear 6, which is meshed and connected to the outer gear ring 5. During use, the motor 7 is started to drive the gear 6 to rotate. Since the gear 6 and the outer gear ring 5 fixedly mounted on the tube body 3 are meshed with each other, the tube body 3 can be driven to rotate between the two brackets 2.

[0036] Reference Figure 1 Multiple grate plates 8 are fixedly connected to the inner cavity of the tube body 3. A crushing chamber 16 is formed between two adjacent grate plates 8. The crushing chamber 16 contains multiple steel balls 9 of different diameters. When the tube body 3 rotates, the steel balls 9 rise to a certain height along the inner wall of the tube body 3 under the action of centrifugal force. Then, the steel balls 9 fall under the action of their own gravity and hit the white cement raw material in the crushing chamber 16, thereby crushing and grinding the white cement raw material.

[0037] Reference Figure 1 The gap between the grate plates 8 installed near the feeding end of the pipe body 3 and far from the feeding end of the pipe body 3 gradually decreases. This allows white cement raw materials crushed to different diameters to enter different crushing bins 16 for step-by-step grinding under the screening effect of the grate plates 8, greatly improving the efficiency of the white cement raw material grinding.

[0038] Reference Figure 2 The noise reduction tube 11 is cylindrical in structure, and its length is less than the distance between the two layers of tube bodies 3. This allows the noise reduction tube 11 to move between the two layers of tube bodies 3 during the rotation of the tube bodies 3, thereby driving the metal particles 13 inside the noise reduction tube 11 to move and perform damping and noise reduction work.

[0039] Reference Figure 3 The number of metal particles 13 contained within the noise reduction tube 11 is no less than half the internal volume of the noise reduction tube 11, and the diameter of the metal particles 13 is larger than the diameter of the sound-absorbing holes 14 provided on the sidewall of the noise reduction tube 11. This ensures that the number of metal particles 13 is no less than half the internal volume of the noise reduction tube 11 significantly improves noise reduction. Furthermore, the diameter of the metal particles 13 is larger than the diameter of the sound-absorbing holes 14 provided on the sidewall of the noise reduction tube 11, minimizing the risk of metal particles 13 leaking through the sound-absorbing holes 14 during movement.

[0040] The implementation principle of the present application is as follows: when in use, the user first introduces the white cement raw material into the tube body 3 from the feed port of the tube body 3, and then starts the motor 7 to drive the gear 6 to rotate. Since the gear 6 and the outer gear ring 5 fixedly installed on the tube body 3 are meshed with each other, the tube body 3 can be driven to rotate between the two brackets 2. During the rotation process, the steel ball 9 can rise to a certain height along the inner wall of the tube body 3 under the action of centrifugal force, and then the steel ball 9 falls under the action of its own gravity and hits the white cement raw material in the crushing bin 16, thereby achieving the crushing and grinding of the white cement raw material. The steel ball 9 hits the tube body 3 The noise generated when grinding white cement raw materials can enter the noise reduction tube 11 through the sound-absorbing holes 14. At the same time, the noise reduction tube 11 is in an active state due to the alternating expansion and contraction of the springs 12 at both ends, which can drive the metal particles 13 contained in the noise reduction tube 11 to rub against each other in the noise reduction tube 11 to form a damping effect. The movement and friction of the metal particles 13 consume the energy of the system to achieve the purpose of reducing the noise generated by the system, and try to avoid the problem that the existing tube mill will generate large noise during the crushing and grinding of white cement, forming noise pollution and seriously affecting the health of the workers.

[0041] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A low-noise cement tube mill for white cement production, comprising a base (1), wherein the tops of both ends of the base (1) are fixedly connected to brackets (2), a tube body (3) is rotatably connected between the two brackets (2), and a driving structure for driving the tube body (3) to rotate is installed on the base (1), characterized in that: The tube body (3) is a double-layer structure, and a receiving cavity (10) is formed between the two layers of the tube body (3). A plurality of noise reduction tubes (11) are provided in the receiving cavity (10), and the two ends of the noise reduction tubes (11) are fixedly connected to the side walls of the receiving cavity (10) via springs (12). Metal particles (13) are also contained in the inner cavity of the noise reduction tube (11). Sound-absorbing holes (14) communicating with the inner cavity of the noise reduction tube (11) are provided on the side walls of the noise reduction tube (11), and sponge particles (15) are filled in the receiving cavity (10) between adjacent noise reduction tubes (11).

2. The low-noise cement tube mill for white cement production according to claim 1, characterized in that: A corrugated lining plate (4) that fits the inner wall of the tube body (3) is embedded in the inner cavity of the tube body (3), and the corrugated lining plate (4) is fixedly connected to the inner wall of the tube body (3).

3. The low-noise cement tube mill for white cement production according to claim 1, characterized in that: An outer gear ring (5) is sleeved on the outer surface of the tube body (3) and is fixedly connected to the outer wall of the tube body (3); the driving structure comprises a motor (7) fixedly connected to the base (1) below the outer gear ring (5); a gear (6) is fixedly connected to the output end of the motor (7); and the gear (6) is meshed and transmission-connected with the outer gear ring (5).

4. The low-noise cement tube mill for white cement production according to claim 1, characterized in that: A plurality of grate plates (8) are fixedly connected to the inner cavity of the tube body (3), a crushing bin (16) is formed between two adjacent grate plates (8), and a plurality of steel balls (9) with different diameters are contained in the crushing bin (16).

5. The low-noise cement tube mill for white cement production according to claim 4, characterized in that: The gap size of the grate plate (8) installed from the feed end close to the tube body (3) to the feed end far away from the tube body (3) gradually decreases.

6. The low-noise cement tube mill for white cement production according to claim 1, characterized in that: The noise reduction tube (11) is a cylindrical structure, and the length of the noise reduction tube (11) is smaller than the distance between the two layers of the tube body (3).

7. The low-noise cement tube mill for white cement production according to claim 6, characterized in that: The amount of the metal particles (13) contained in the noise reduction tube (11) is not less than half of the inner cavity volume of the noise reduction tube (11), and the diameter of the metal particles (13) is larger than the aperture of the sound absorbing hole (14) opened on the side wall of the noise reduction tube (11).

Images