Device for conveying carbon black into coal mill

Abstract

The utility model discloses a device for conveying carbon black into a coal mill, which relates to the technical field of carbon black conveying equipment and comprises a feeding bin, a discharging pipe is arranged at the bottom of the feeding bin, and a star-shaped discharging valve is arranged on the discharging pipe. The material conveying assembly comprises a material conveying barrel, an inner barrel, a material conveying screw and a first motor, the material conveying barrel and the inner barrel are horizontally arranged, the inner barrel is arranged in the material conveying barrel, the discharging pipe penetrates through the material conveying barrel and is communicated and connected with the inner barrel, and the material conveying screw is rotationally arranged in the inner barrel; according to the carbon black drying device, hot air is conveyed into the cavity between the inner cylinder and the conveying cylinder and the crushing bin to heat the inner cylinder wall and the inner cavity of the crushing bin, so that carbon black is dried; and the second motor drives the first crushing blade and the second crushing blade to rotate reversely, so that the first crushing blade and the second crushing blade are matched to crush the carbon black, and the quality of the carbon black entering the coal mill is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of carbon black conveying equipment, specifically a device for conveying carbon black into a coal mill. Background Technology

[0002] A coal mill is a device used to grind lumpy coal into pulverized coal, widely used in industries such as power and chemicals. It uses mechanical forces such as extrusion and grinding to reduce coal particles, allowing for more efficient reactions during combustion or other processes. Carbon black is amorphous carbon produced by the incomplete combustion or thermal cracking of hydrocarbons. It has small particle size, large specific surface area, and strong adsorption properties, making it an important additive in industries such as rubber and plastics. It can significantly improve product performance, such as enhancing the wear resistance of rubber and the UV resistance of plastic products.

[0003] In cement production, carbon black and coal need to be mixed. For example, adding an appropriate amount of carbon black during some fuel preparation processes can make coal burn more completely, improve energy efficiency, and reduce pollutant emissions. The mixture of coal and carbon black after coal milling provides a unique carbon source and structural characteristics, which helps in the synthesis of chemical products with special properties. Therefore, feeding carbon black into coal mills is of great significance for optimizing processes and improving product quality.

[0004] However, the current method of conveying carbon black to the coal mill has shortcomings. Existing equipment cannot effectively dry carbon black, which is prone to absorbing water. Excessive moisture content entering the coal mill reduces grinding efficiency, increases energy consumption, and causes the mixture to agglomerate in subsequent processes, affecting product quality. Moreover, the current conveying method is unable to break up carbon black agglomerates. These agglomerates entering the coal mill not only fail to utilize the advantages of carbon black but also cause wear and tear on the equipment, leading to fluctuations in product quality and making it difficult to meet stringent industrial standards. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a device for conveying carbon black into a coal mill. By supplying hot air into the cavity between the inner cylinder and the conveying cylinder, as well as into the crushing chamber, the inner cylinder wall and the inner cavity of the crushing chamber are heated to dry the carbon black. A second motor drives the first crushing blade and the second crushing blade to rotate in opposite directions, so that the first crushing blade and the second crushing blade cooperate to crush the carbon black, thereby improving the quality of the carbon black entering the coal mill.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a device for conveying carbon black into a coal mill, comprising:

[0007] A feeding hopper, the bottom of which is provided with a discharge pipe, and a star-shaped discharge valve is provided on the discharge pipe;

[0008] A material conveying assembly includes a material conveying cylinder, an inner cylinder, a material conveying screw, and a first motor. The material conveying cylinder and the inner cylinder are both horizontally arranged, with the inner cylinder located inside the material conveying cylinder. The discharge pipe passes through the material conveying cylinder and is connected to the inner cylinder. The material conveying screw is rotatably arranged in the inner cylinder. The first motor is located on the outer wall of the material conveying cylinder, and its output shaft is connected to the material conveying screw. An air inlet pipe is connected to the material conveying cylinder.

[0009] The crushing chamber is equipped with a crushing component for crushing carbon black discharged from the inner cylinder. The top of the crushing chamber is connected to an air outlet pipe, and the bottom is connected to a coal mill.

[0010] Preferably, the crushing assembly includes a second motor, a plurality of first crushing blades, and a plurality of second crushing blades. The second motor is disposed at the top of the crushing chamber, and the output shaft of the second motor passes through the top wall of the crushing chamber and is connected to a rotating shaft at its end. A first connecting cylinder is disposed on the inner top wall of the crushing chamber and outside the rotating shaft. A U-shaped plate is connected to the first connecting cylinder. A second bevel gear and a second connecting cylinder are rotatably disposed on the U-shaped plate. A third bevel gear is disposed on the second connecting cylinder and meshes with the second bevel gear. The rotating shaft passes through and is disposed with the third bevel gear and the second connecting cylinder. A first bevel gear is disposed on the rotating shaft and meshes with the second bevel gear. The plurality of first crushing blades are disposed at a circumferential position on the outer wall of the second connecting cylinder and at a circumferential position on the side wall of the rotating shaft of the plurality of second crushing blades. The first crushing blades and the second crushing blades rotate in opposite directions and are capable of crushing carbon black.

[0011] Preferably, a rotating rod is rotatably mounted on the concave plate, and the second bevel gear is mounted on the rotating rod.

[0012] Preferably, a protective cover is provided on the first connecting cylinder, and the protective cover is located on the outside of the U-shaped plate.

[0013] This utility model provides a device for conveying carbon black into a coal mill, which has the following beneficial effects:

[0014] This invention heats the inner cylinder wall and the inner cavity of the crushing chamber by supplying hot air into the cavity between the inner cylinder and the conveying cylinder and into the crushing chamber, thereby drying the carbon black. The second motor drives the first crushing blade and the second crushing blade to rotate in opposite directions, so that the first crushing blade and the second crushing blade cooperate to crush the carbon black, thereby improving the quality of the carbon black entering the coal mill. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a device for conveying carbon black into a coal mill according to the present invention;

[0016] Figure 2This utility model relates to a device for conveying carbon black into a coal mill. Figure 1 An enlarged schematic diagram of part A in the middle.

[0017] In the diagram: 1. Feeding hopper; 2. Rotary star valve; 3. Conveying cylinder; 4. Inner cylinder; 5. Conveying screw; 6. Air inlet pipe; 7. First motor; 8. Crushing chamber; 9. Second motor; 10. Air outlet pipe; 11. Rotating shaft; 12. First connecting cylinder; 13. U-shaped plate; 14. Second connecting cylinder; 15. First bevel gear; 16. Second bevel gear; 17. Third bevel gear; 18. Rotating rod; 19. First crushing blade; 20. Second crushing blade; 21. Protective cover; 22. Coal mill. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-2 This utility model provides a technical solution: a device for conveying carbon black into a coal mill, comprising:

[0020] Feeding hopper 1, with a discharge pipe at the bottom of feeding hopper 1, and a star-shaped discharge valve 2 installed on the discharge pipe;

[0021] The material conveying assembly includes a material conveying cylinder 3, an inner cylinder 4, a material conveying screw 5, and a first motor 7. The material conveying cylinder 3 and the inner cylinder 4 are both horizontally arranged, and the inner cylinder 4 is located inside the material conveying cylinder 3. The discharge pipe passes through the material conveying cylinder 3 and is connected to the inner cylinder 4. The material conveying screw 5 is rotatably arranged in the inner cylinder 4. The first motor 7 is located on the outer wall of the material conveying cylinder 3 and its output shaft is connected to the material conveying screw 5. An air inlet pipe 6 is connected to the material conveying cylinder 3.

[0022] The crushing chamber 8 is equipped with a crushing component for crushing the carbon black discharged from the inner cylinder 4. The top of the crushing chamber 8 is connected to an air outlet pipe 10, and the bottom is connected to a coal mill 22.

[0023] In this embodiment, the feeding hopper 1, the conveying cylinder 3, and the crushing chamber 8 are all supported by a steel structure frame. The inner cylinder 4 is located inside the conveying cylinder 3, and the axes of the two coincide. The discharge pipe at the bottom of the feeding hopper 1 is connected to the top of the inner cylinder 4 on the side away from the crushing chamber 8. The first motor 7 is located on the outer wall of the conveying cylinder 3 near the feeding hopper 1. The output shaft of the first motor 7 passes through the side wall of the conveying cylinder 3 and is connected to the conveying screw 5. The air inlet pipe 6 is connected to the bottom of the conveying cylinder 3 on the side away from the crushing chamber 8. The air inlet pipe 6 is connected to an external heating gas device. The heating gas device delivers hot air to the cavity between the inner cylinder 4 and the conveying cylinder 3 and into the crushing chamber 8 through the air inlet pipe 6 to dry the carbon black. After drying, the hot air is discharged from the air outlet pipe 10, which is located on the top of the crushing chamber 8 on the side away from the conveying cylinder 3.

[0024] As an embodiment of this utility model, the crushing assembly includes a second motor 9, a plurality of first crushing blades 19 and a plurality of second crushing blades 20. The second motor 9 is disposed at the top of the crushing chamber 8. The output shaft of the second motor 9 passes through the top wall of the crushing chamber 8 and is connected to a rotating shaft 11 at its end. A first connecting cylinder 12 is disposed on the inner wall of the top of the crushing chamber 8 and outside the rotating shaft 11. A U-shaped plate 13 is connected to the first connecting cylinder 12. A second bevel gear 16 and a second connecting cylinder 14 are rotatably disposed on the U-shaped plate 13. A third bevel gear 17 is disposed on the second connecting cylinder 14 and meshes with the second bevel gear 16. The rotating shaft 11 passes through and is disposed with the third bevel gear 17 and the second connecting cylinder 14. A first bevel gear 15 is disposed on the rotating shaft 11 and meshes with the second bevel gear 16. The plurality of first crushing blades 19 are disposed at a circumferential position on the outer wall of the second connecting cylinder 14. The plurality of second crushing blades 20 are disposed at a circumferential position on the side wall of the rotating shaft 11. The first crushing blades 19 and the second crushing blades 20 rotate in opposite directions and are capable of crushing carbon black.

[0025] In this embodiment, as Figure 2 As shown, the U-shaped plate 13 has an opening facing one side, and through holes are provided at its top and bottom. The first connecting cylinder 12 is disposed in the upper through hole, and the second connecting cylinder 14 is rotatably disposed in the lower through hole. A bearing is disposed in the lower through hole of the U-shaped plate 13. The outer ring of the bearing is connected to the U-shaped plate 13, and the inner ring is connected to the outer wall of the second connecting cylinder 14, so that the second connecting cylinder 14 can rotate on the U-shaped plate 13. The positions of the multiple first crushing blades 19 and the multiple second crushing blades are adjacent and rotate in opposite directions, so that the carbon black can be crushed when rotating.

[0026] As an embodiment of this utility model, a rotating rod 18 is rotatably disposed on the concave plate 13, and a second bevel gear 16 is disposed on the rotating rod 18.

[0027] In this embodiment, the rotating rod 18 is mounted on the side wall of the U-shaped plate 13 in the vertical direction via a bearing, so that the second bevel gear 16 and the rotating rod 18 can rotate on the U-shaped plate 13.

[0028] As an embodiment of the present invention, a protective cover 21 is provided on the first connecting cylinder 12, and the protective cover 21 is located on the outside of the U-shaped plate 13.

[0029] In this embodiment, the protective cover 21 is used to prevent carbon black discharged from the inner cylinder 4 into the crushing chamber 8 from falling onto other components inside it.

[0030] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical connections between the various electrical components are completed in sequence. The detailed connection methods are well-known technologies in the field. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0031] The working principle and usage process of this utility model are as follows: During use, hot air is supplied to the air inlet pipe 6 via an external heating device. The hot air enters the cavity between the inner cylinder 4 and the conveying cylinder 3, and the crushing chamber 8, to heat the wall of the inner cylinder 4 and the inner cavity of the crushing chamber 8. Carbon black is stored in the feeding hopper 1. The star-shaped discharge valve 2 is activated, which can quantitatively or at a constant speed convey the carbon black from the feeding hopper 1 to the inner cylinder 4. The first motor 7 is activated, and its output shaft drives the conveying screw 5 to rotate. The conveying screw 5 conveys the carbon black to the crushing chamber 8. When the carbon black enters the crushing chamber 8, the output shaft of the second motor 9 drives the connected rotating shaft 11 to rotate. The rotating shaft 11 drives the first bevel gear 1... When the shaft 11 rotates, the first bevel gear 15 drives the meshing second bevel gear 16 to rotate, the second bevel gear 16 drives the meshing third bevel gear 17 to rotate, the third bevel gear 17 drives the connected second connecting cylinder 14 to rotate, the second connecting cylinder 14 drives multiple first crushing blades 19 to rotate, and when the shaft 11 rotates, it drives multiple connected second crushing blades 20 to rotate. The first crushing blades 19 and the second crushing blades 20 rotate in opposite directions and are close to each other, which can crush the carbon black that falls into the crushing chamber 8. The crushed carbon black enters the coal mill 22 at the bottom of the crushing chamber 8. The carbon black is heated and dried during the conveying process, and the dried hot air is discharged from the air outlet pipe 10.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for conveying carbon black into a coal mill, characterized in that, include: Feeding bin (1), the bottom of the feeding bin (1) is provided with a discharge pipe, and the discharge pipe is provided with a star-shaped discharge valve (2); The material conveying assembly includes a material conveying cylinder (3), an inner cylinder (4), a material conveying screw (5), and a first motor (7). The material conveying cylinder (3) and the inner cylinder (4) are both horizontally arranged, and the inner cylinder (4) is located inside the material conveying cylinder (3). The discharge pipe passes through the material conveying cylinder (3) and is connected to the inner cylinder (4). The material conveying screw (5) is rotatably arranged in the inner cylinder (4). The first motor (7) is located on the outer wall of the material conveying cylinder (3) and its output shaft is connected to the material conveying screw (5). An air inlet pipe (6) is connected to the material conveying cylinder (3). The crushing chamber (8) is equipped with a crushing component for crushing carbon black discharged from the inner cylinder (4). The top of the crushing chamber (8) is connected to an air outlet pipe (10), and the bottom is connected to a coal mill (22).

2. The device for conveying carbon black into a coal mill according to claim 1, characterized in that, The crushing assembly includes a second motor (9), multiple first crushing blades (19), and multiple second crushing blades (20). The second motor (9) is located at the top of the crushing chamber (8). The output shaft of the second motor (9) passes through the top wall of the crushing chamber (8) and is connected to a rotating shaft (11) at its end. A first connecting cylinder (12) is provided on the inner top wall of the crushing chamber (8) and outside the rotating shaft (11). A U-shaped plate (13) is connected to the first connecting cylinder (12). A second bevel gear (16) and a second connecting cylinder (14) are rotatably mounted on the U-shaped plate (13). (14) is provided with a third bevel gear (17) that meshes with the second bevel gear (16). The rotating shaft (11) passes through and is provided with the third bevel gear (17) and the second connecting cylinder (14). The rotating shaft (11) is provided with a first bevel gear (15) that meshes with the second bevel gear (16). A plurality of first crushing blades (19) are provided at the circumferential position of the outer wall of the second connecting cylinder (14). A plurality of second crushing blades (20) are provided at the circumferential position of the side wall of the rotating shaft (11). The first crushing blades (19) and the second crushing blades (20) rotate in opposite directions and are capable of crushing carbon black.

3. The device for conveying carbon black into a coal mill according to claim 2, characterized in that, A rotating rod (18) is rotatably mounted on the concave plate (13), and the second bevel gear (16) is mounted on the rotating rod (18).

4. The device for conveying carbon black into a coal mill according to claim 2, characterized in that, The first connecting cylinder (12) is provided with a protective cover (21), which is located on the outside of the U-shaped plate (13).

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