A granulation device for carbon black production
By designing a carbon black granulation equipment with a conical hopper, stirring rod, scraper, atomizing nozzle, and ultrasonic vibrator, the problems of poor discharge, uneven mixing, and discharge blockage in existing equipment have been solved, achieving uniform mixing and continuous discharge of carbon black powder and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN CHAOYUAN RENEWABLE RESOURCES CO LTD
- Filing Date
- 2025-09-04
- Publication Date
- 2026-05-29
AI Technical Summary
Existing wet carbon black granulation equipment suffers from problems such as poor discharge, uneven mixing, and easy bridging of feed and blockage of discharge, which affect continuous production.
A granulation device comprising a conical hopper, a stirring rod, a scraper, an atomizing nozzle, an airflow nozzle, and an ultrasonic vibrator was designed. Through segmented stirring by the stirring rod, uniform spraying by the atomizing nozzle, anti-clogging airflow, and anti-adhesion by the ultrasonic vibrator, uniform mixing and continuous discharge of carbon black powder are achieved.
It achieves uniform mixing of carbon black powder, prevents bridging at the feed inlet and blockage at the discharge outlet, ensures the continuity and efficiency of the granulation process, and reduces the frequency of equipment maintenance.
Smart Images
Figure CN224293185U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of carbon black production technology, and in particular to a granulation device for carbon black production. Background Technology
[0002] Carbon black, as an important chemical raw material, is widely used in rubber, plastics, inks, coatings, and other fields. Due to its original form as an extremely fine powder, it has a large surface area, loose texture, poor flowability, and is prone to dust generation, causing numerous inconveniences during storage, transportation, and use, and adversely affecting the production environment and the health of operators. To improve the physical properties of carbon black, increase its flowability, reduce dust pollution, and facilitate measurement and processing, it is usually processed into granules; this process is called carbon black granulation. Wet granulation is one of the main processes in carbon black granulation. It involves adding a liquid binder to carbon black powder, causing the powder to agglomerate and roll to grow into granules under mechanical stirring, which are then dried to obtain the finished product.
[0003] Currently, existing carbon black wet granulation equipment still has several problems in practical applications. Some equipment uses a straight cylindrical hopper, which results in poor bottom discharge, causing material to accumulate at the bottom and form dead zones, leading to difficulties in discharge or even blockages, affecting continuous production. The mixing structure design is unreasonable, making it difficult to balance rapid and uniform mixing of powder and liquid with gentle tumbling and growth of particles, easily leading to uneven mixing or particle breakage. Furthermore, carbon black powder is prone to bridging or adhesion at the feed inlet, causing supply interruptions; wet material easily adheres and accumulates on the inner wall of the hopper and at the discharge outlet, causing blockages after long-term operation, resulting in frequent equipment maintenance.
[0004] Therefore, it is necessary to design a granulation equipment for carbon black production to solve the above-mentioned technical problems. Utility Model Content
[0005] In order to overcome the shortcomings of existing carbon black granulation equipment, such as poor discharge, uneven mixing, and easy occurrence of feed bridging and discharge blockage, this utility model provides a granulation equipment for carbon black production.
[0006] The technical solution is as follows: A granulation device for carbon black production includes a support frame, a material bucket, a feed inlet, a motor, a stirring rod, a first stirring blade, a second stirring blade, a first scraper, a discharge outlet, a valve, a controller, a storage tank, a pump body, a connecting pipe, a pipe ring, and an atomizing nozzle. The material bucket is fixedly connected to the upper front side of the support frame. The lower part of the material bucket has a conical structure. The top rear side of the material bucket is connected to and communicates with the feed inlet. The motor is installed on the top of the material bucket, with the output shaft facing downwards. The output shaft passes through the top of the material bucket and is fixedly connected to the stirring rod. The stirring rod is arranged axially, and the upper part of the stirring rod is fixedly connected to the first stirring blade. A second stirring blade is fixedly connected to the middle of the stirring rod, and a first scraper is fixedly connected to the lower part of the stirring rod. The bottom of the material tank is connected to and connected to the discharge port, which is equipped with a valve. A controller is located on the upper right side of the support frame, and a liquid storage tank is fixedly connected to the upper rear side of the support frame. A pump body is located on the top of the liquid storage tank, and the output port of the pump body is connected to and connected to a connecting pipe. A pipe ring is located on the upper part of the material tank, and the connecting pipe is connected to and connected to the pipe ring. Multiple atomizing nozzles are connected to and connected to the side of the pipe ring near the material tank. The atomizing nozzles are evenly distributed around the circumference of the pipe ring and extend through the side wall of the material tank into the upper part of the material tank. The motor is electrically connected to the controller.
[0007] Optionally, it also includes a second scraper, which has a U-shaped structure and its bottom is fixedly connected to the bottom of the stirring rod. Two side arms extend upward, and the outer ends of the side arms are in contact with the inner wall of the conical part of the material barrel.
[0008] Optionally, it also includes an air pipe and airflow nozzles. An air pipe is provided above the connection between the material barrel and the discharge port. One side of the air pipe is connected to an air source. The side of the air pipe near the material barrel is connected to and connected to multiple airflow nozzles. The airflow nozzles are evenly distributed around the air pipe and face the discharge port.
[0009] Optionally, it also includes an observation door, which is rotatably connected to the front side of the material hopper.
[0010] Optionally, it also includes a handle, with a handle fixedly connected to the right side of the observation door.
[0011] Optionally, it also includes an ultrasonic vibrator, which is located below the connection between the material bucket and the discharge port, and is electrically connected to the controller.
[0012] The beneficial effects are: 1. This utility model has a conical structure set at the bottom of the material barrel, and a second scraper fixedly connected to the bottom of the stirring rod. The outer end of the second scraper is in contact with the inner wall of the conical part of the material barrel. When rotating, it scrapes off the material on the inner wall of the conical part, promotes the material to flow towards the discharge port, and achieves the effects of improving the material discharge performance, reducing the accumulation of material at the bottom of the cone, and preventing the discharge port from being blocked.
[0013] 2. This utility model uses a stirring rod with a first stirring blade fixedly connected to the upper part and a second stirring blade fixedly connected to the middle part. The first stirring blade uses a large tilt angle to generate a strong axial flow to achieve rapid mixing and shearing, while the second stirring blade uses a small tilt angle to generate a strong radial flow to achieve material throwing and turning. In conjunction with the atomizing nozzle, the binder is atomized and sprayed into the upper part of the material barrel, so as to achieve the effect of uniformly wetting the carbon black powder, promoting nucleation, and realizing the rolling growth of particles.
[0014] 3. This utility model connects to an airflow nozzle via an air pipe and supplies air to it. The airflow nozzle sprays airflow towards the discharge port to form an air curtain. At the same time, an ultrasonic vibrator is located below the discharge port and generates high-frequency vibration. Combined with the first scraper scraping off the material on the inner wall of the cylindrical section of the material barrel, it achieves the effects of preventing powder from bridging at the inlet, avoiding adhesion and blockage at the discharge port, and reducing material hanging on the cylinder wall. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model.
[0016] Figure 2 This is a structural schematic diagram of the material bucket, discharge port, motor, and other components of this utility model.
[0017] Figure 3 This is a partial cross-sectional view of the components of this utility model, including the first stirring blade, the second stirring blade, and the discharge port.
[0018] Figure 4 This is a partial cross-sectional structural diagram of the atomizing nozzle, air pipe, and airflow nozzle of this utility model.
[0019] Figure 5 This is a partial cross-sectional structural diagram of the liquid storage tank, pump body, and connecting pipes of this utility model.
[0020] The meanings of the reference numerals in the attached diagram are as follows: 1_Support frame, 2_Material bucket, 3_Discharge port, 4_Motor, 5_Agitator rod, 6_First agitator blade, 7_Second agitator blade, 8_First scraper, 9_Second scraper, 10_Discharge port, 11_Valve, 12_Controller, 13_Storage tank, 14_Pump body, 15_Connecting pipe, 16_Pipe ring, 17_Atomizing nozzle, 18_Air pipe, 19_Airflow nozzle, 20_Observation door, 21_Handle, 22_Ultrasonic vibrator. Detailed Implementation
[0021] Example: A granulation device for carbon black production, such as... Figures 1-5As shown, the system includes a support frame 1, a material tank 2, a discharge port 3, a motor 4, a stirring rod 5, a first stirring blade 6, a second stirring blade 7, a first scraper 8, a discharge port 10, a valve 11, a controller 12, a storage tank 13, a pump body 14, a connecting pipe 15, a pipe ring 16, and an atomizing nozzle 17. The upper front of the support frame 1 is bolted to the material tank 2. The lower part of the material tank 2 has a conical structure. The rear top of the material tank 2 is connected to and communicates with the discharge port 3. The motor 4 is installed on the top of the material tank 2. The output shaft of the motor 4 faces downward and passes through the top of the material tank 2, where it is bolted to the stirring rod 5. The stirring rod 5 is axially oriented. The upper part of the stirring rod 5 is bolted to the first stirring blade 6, the middle part of the stirring rod 5 is bolted to the second stirring blade 7, and the lower part of the stirring rod 5 is bolted to the first scraper 8. The bottom of the material tank 2 is connected to and connected to the discharge port 10, which is equipped with a valve 11. The upper right side of the support frame 1 is equipped with a controller 12. The upper rear side of the support frame 1 is connected to the storage tank 13 by bolts. The side wall of the storage tank 13 is equipped with a level gauge, and the rear is equipped with a replenishment port to facilitate real-time monitoring of the liquid level and timely replenishment of adhesive. The top of the storage tank 13 is equipped with a pump body 14, and the output port of the pump body 14 is connected to and connected to the connecting pipe 15. The upper part of the material tank 2 is equipped with a pipe ring 16, and the connecting pipe 15 is connected to and connected to the pipe ring 16. The side of the pipe ring 16 near the material tank 2 is connected to and connected to multiple atomizing nozzles 17. The atomizing nozzles 17 are evenly distributed around the circumference of the pipe ring 16. The atomizing nozzles 17 pass through the side wall of the material tank 2 and extend into the upper part of the material tank 2, with the atomizing nozzles 17 facing the center of the inside of the material tank 2. The motor 4 is electrically connected to the controller 12.
[0022] like Figures 1-5 As shown, it also includes a second scraper 9, an air pipe 18, an air nozzle 19, an observation door 20, a handle 21, and an ultrasonic vibrator 22. The second scraper 9 has a U-shaped structure, and its bottom is connected to the bottom of the stirring rod 5 by bolts. Two side arms extend upwards, and the outer ends of the side arms are in contact with the inner wall of the conical part of the material barrel 2. An air pipe 18 is provided above the connection between the material barrel 2 and the discharge port 3. One side of the air pipe 18 is connected to an air source. The side of the air pipe 18 near the material barrel 2 is connected to and connected to multiple air nozzles 19. The air nozzles 19 are evenly distributed around the air pipe 18 and face the discharge port 3. An observation door 20 is rotatably connected to the front of the material barrel 2. A handle 21 is connected to the right side of the observation door 20 by bolts. An ultrasonic vibrator 22 is provided below the connection between the material barrel 2 and the discharge port 10. The ultrasonic vibrator 22 is electrically connected to the controller 12.
[0023] When this device is needed, first fix the equipment in the predetermined working position, and set the motor speed 4, pump body 14 working parameters and ultrasonic vibrator 22 start and stop program through controller 12 to prepare for carbon black granulation operation.
[0024] After the operation begins, the carbon black powder enters the upper space of the material barrel 2 through the feed port 3. At the same time, the pump body 14 is started, and the liquid binder in the storage tank 13 is transported to the pipe ring 16 through the connecting pipe 15. The pipe ring 16 evenly distributes the liquid to multiple atomizing nozzles 17 connected to its circumference. The atomizing nozzles 17 atomize the binder into fine droplets and spray them into the upper part of the material barrel 2, so that the powder can fully contact the atomized liquid in the initial falling stage, achieving wetting and initial agglomeration.
[0025] At this time, the motor 4 starts and drives the stirring rod 5 to rotate axially. The stirring rod 5 drives the first stirring blade 6, the second stirring blade 7, the first scraper 8 and the second scraper 9 fixed on it to rotate synchronously. The first stirring blade 6 is located on the upper part of the stirring rod 5 and adopts a large tilt angle design. When rotating, it generates a strong axial flow field, which quickly mixes and shears the powder and atomized droplets entering the material barrel 2, promotes the nucleation of initial particles and prevents the formation of large agglomerates.
[0026] Subsequently, the material moves downward to the middle of the stirring rod 5 under the action of stirring. The second stirring blade 7 plays a role in this area. It adopts a small tilt angle and generates a strong radial and tangential flow when rotating. It throws and turns the initially nucleated particles towards the side wall of the material bucket 2, so that the particles continuously adhere to the surrounding fine powder during the rolling process, achieve uniform growth, and form spherical or near-spherical particles with suitable particle size.
[0027] During the mixing process, the first scraper 8 rotates with the stirring rod 5 and moves along the cylindrical section of the material bucket 2, continuously stirring the wet material in the cylindrical section to prevent the material from accumulating on the side wall and forming dead zones or lumps. At the same time, the second scraper 9 has a U-shaped structure, with its bottom fixed to the bottom of the stirring rod 5 and two side arms extending upward. The outer ends of the side arms are in contact with the inner wall of the conical part of the material bucket 2. When rotating, the side arms slide along the inner wall of the conical part, simultaneously scraping off the attached material, ensuring the conical surface is clean, and promoting the smooth sliding of the matured particles along the conical surface towards the discharge port 10 under the action of gravity.
[0028] To prevent material blockage during the feeding process, the air source supplies air to multiple airflow nozzles 19 connected to the air pipe 18. The airflow nozzles 19 are evenly distributed around the air pipe 18 and spray high-speed airflow towards the discharge port 3, forming an air curtain at the connection between the discharge port 3 and the material barrel 2. This effectively prevents powder from bridging or sticking at the inlet, ensuring continuous and stable feeding.
[0029] Once the particles have grown to the target size, they slide down to the discharge port 10 area. The ultrasonic vibrator 22 is started under the command of the controller 12, applying high-frequency vibration to the area around the discharge port 10 to break the adhesion and static friction between the materials and prevent the wet particles from clogging at the discharge port 10. At this time, the valve 11 is opened, and the particles are smoothly discharged from the material bucket 2 under the assistance of gravity and vibration, realizing continuous discharge.
[0030] The entire granulation process is uniformly coordinated and managed by the controller 12. The speed of the motor 4 is adjusted according to the process requirements to control the stirring intensity, the flow rate of the pump body 14 is adjusted to control the liquid addition rate, and the ultrasonic vibrator 22 is started and stopped in a timely manner to ensure smooth material discharge. The operator can open the observation door 20 through the handle 21 to observe the material status inside the material tank 2 and the equipment operation in real time, which is convenient for monitoring and maintenance.
[0031] In summary, this device uses motor 4 to drive stirring rod 5 and its components to achieve segmented stirring and wall scraping. Combined with atomized spraying, airflow purging and ultrasonic anti-clogging, it synergistically completes the entire process of carbon black powder mixing, nucleation, growth, preventing material from sticking to the wall and discharging, thus achieving efficient, stable and continuous wet granulation operation.
Claims
1. A granulation device for carbon black production, characterized in that: The system includes a support frame (1), a material bucket (2), a discharge port (3), a motor (4), a stirring rod (5), a first stirring blade (6), a second stirring blade (7), a first scraper (8), a discharge port (10), a valve (11), a controller (12), a storage tank (13), a pump body (14), a connecting pipe (15), a pipe ring (16), and an atomizing nozzle (17). The material bucket (2) is fixedly connected to the front upper part of the support frame (1). The lower part of the material bucket (2) has a conical structure. The rear top of the material bucket (2) is connected to and connected to the discharge port (3). The motor (4) is installed on the top of the material bucket (2). The output shaft of the motor (4) faces downward. The output shaft passes through the top of the material bucket (2) and is fixedly connected to the stirring rod (5). The stirring rod (5) is arranged axially. The first stirring blade (6) is fixedly connected to the upper part of the stirring rod (5), and the second stirring blade (6) is fixedly connected to the middle part of the stirring rod (5). Leaf (7), stirring rod (5) is fixedly connected to the first scraper (8), the bottom of the material bucket (2) is connected to and connected to the discharge port (10), the discharge port (10) is equipped with a valve (11), the upper right side of the support frame (1) is equipped with a controller (12), the upper rear side of the support frame (1) is fixedly connected to the storage tank (13), the top of the storage tank (13) is equipped with a pump body (14), the output port of the pump body (14) is connected to and connected to the connecting pipe (15), the upper part of the material bucket (2) is equipped with a pipe ring (16), the connecting pipe (15) is connected to and connected to the pipe ring (16), the side of the pipe ring (16) near the material bucket (2) is connected to and connected to multiple atomizing nozzles (17), the atomizing nozzles (17) are evenly distributed around the pipe ring (16), the atomizing nozzles (17) pass through the side wall of the material bucket (2) and extend into the upper part of the material bucket (2), the motor (4) is electrically connected to the controller (12).
2. A granulation device for carbon black production according to claim 1, characterized in that: It also includes a second scraper (9), which is a U-shaped structure. Its bottom is fixedly connected to the bottom of the stirring rod (5), and its two side arms extend upward. The outer ends of the side arms are in contact with the inner wall of the conical part of the material bucket (2).
3. A granulation device for carbon black production according to claim 2, characterized in that: It also includes an air pipe (18) and an air nozzle (19). An air pipe (18) is provided above the connection between the material bucket (2) and the discharge port (3). One side of the air pipe (18) is connected to an air source. The side of the air pipe (18) near the material bucket (2) is connected to and connected to multiple air nozzles (19). The air nozzles (19) are evenly distributed around the air pipe (18) and face the discharge port (3).
4. A granulation device for carbon black production according to claim 3, characterized in that: It also includes an observation door (20), and the front side of the material bucket (2) is rotatably connected to the observation door (20).
5. A granulation device for carbon black production according to claim 4, characterized in that: It also includes a handle (21), and the right side of the observation door (20) is fixedly connected to the handle (21).
6. A granulation device for carbon black production according to claim 5, characterized in that: It also includes an ultrasonic vibrator (22), which is located below the connection between the material bucket (2) and the discharge port (10). The ultrasonic vibrator (22) is electrically connected to the controller (12).