Cooling device for carbon black production

Abstract

The utility model discloses a cooling device for carbon black production, which comprises a screw conveyer, a cyclone separator, a fan and a carbon black collecting tank, a jacket is arranged outside the screw conveyer and is divided into a first cooling area, a second cooling area and a third cooling area by a plurality of partition plates, a plurality of heat-conducting fins are arranged on the inner wall of the jacket, and the first cooling area, the second cooling area and the third cooling area are communicated with each other. A plurality of flow guide grooves are formed in the surfaces of the heat conduction fins, and a plurality of flow guide teeth are arranged on the edges of the flow guide fins. The device disclosed by the utility model adopts a plurality of cooling areas for combined cooling, prevents local overheating from influencing the cooling efficiency, can monitor the temperature of the cooling device in real time, and prevents too fast or too slow cooling rate from influencing the performance of carbon black.

Description

Technical Field

[0001] This utility model relates to the technical field of carbon black production equipment, specifically to a carbon black production cooling device. Background Technology

[0002] Carbon black is a granular carbon material produced by the incomplete combustion or pyrolysis of hydrocarbons such as bituminous coal and petroleum asphalt under high temperature conditions. It is widely used in industries such as rubber, plastics, inks, and coatings.

[0003] The production process of carbon black mainly includes the following steps: pyrolysis and combustion. First, the raw material undergoes a pyrolysis reaction in a high-temperature reactor, generating flue gas containing carbon particles. Then, by injecting quenching water or other cooling media into the reactor, the temperature of the flue gas is rapidly reduced, terminating further reaction of the carbon black particles and preventing excessive growth or structural damage. Finally, the cooled carbon black particles are collected through a bag filter or cyclone separator and granulated using wet or dry methods to form the finished product. During the above process, the temperature of the cooled carbon black particles is usually not very low. To avoid affecting subsequent collection efficiency, further cooling is required before collection in the bag filter or cyclone separator.

[0004] Existing cooling devices for carbon black suffer from the following main problems: 1. Traditional cooling devices use single-layer jacketed water cooling or a single stirring shaft, which is insufficient to cover the carbon black accumulation area, leading to localized overheating. 2. They lack real-time temperature monitoring and dynamic adjustment, relying on manual intervention. Therefore, it is necessary to provide a cooling device with high cooling efficiency. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a cooling device for carbon black production, which addresses the shortcomings of the existing technology by using multiple cooling zones for combined cooling to prevent local overheating and affect cooling efficiency. It can also monitor the temperature of the cooling device in real time to prevent the cooling rate from being too fast or too slow, which could affect the performance of the carbon black.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0007] A carbon black production cooling device includes a screw conveyor, a cyclone separator, a fan, and a carbon black collection tank. The discharge ports of the screw conveyor and the cyclone separator are connected to the carbon black collection tank. The screw conveyor is externally equipped with a jacket, which is divided into a first cooling zone, a second cooling zone, and a third cooling zone by multiple partitions. The first cooling zone is connected to a first cooling water inlet pipe and a first cooling water outlet pipe; the second cooling zone is connected to a second cooling water inlet pipe and a second cooling water outlet pipe; and the third cooling zone is connected to a third cooling water inlet pipe and a third cooling water outlet pipe. The water inlet pipe is equipped with a first flow regulating valve, a second flow regulating valve, and a third flow regulating valve. The inner wall of the screw conveyor is equipped with a first temperature sensor, a second temperature sensor, and a third temperature sensor at corresponding locations in the first cooling zone, the second cooling zone, and the third cooling zone, respectively. The first temperature sensor is interlocked with the first flow regulating valve, the second temperature sensor with the second flow regulating valve, and the third temperature sensor with the third flow regulating valve. The inner wall of the jacket is equipped with multiple heat-conducting fins, the surface of the heat-conducting fins is equipped with multiple flow-guiding grooves, and the edge of the flow-guiding fins is equipped with multiple flow-guiding teeth.

[0008] Preferably, the screw conveyor includes a housing, within which screw conveying blades are rotatably disposed, and the ends of the screw conveying blades are provided with crushing teeth.

[0009] Preferably, multiple heat-conducting fins are arranged in an alternating pattern.

[0010] Preferably, the screw conveyor is provided with an exhaust port, which is connected to the cyclone separator.

[0011] Preferably, the water inlets and outlets of the first cooling zone, the second cooling zone, and the third cooling zone are respectively located at the feed inlet end away from the screw conveyor and the feed inlet end close to the screw conveyor.

[0012] Due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0013] This utility model provides a cooling device for carbon black production, including a screw conveyor, a cyclone separator, a fan, and a carbon black collection tank. The screw conveyor is equipped with a jacket, which is divided into a first cooling zone, a second cooling zone, and a third cooling zone by multiple partitions. The setting of multiple cooling zones ensures the gradient cooling of carbon black, which can better adjust the cooling rate and avoid the effect of improper cooling rate on the performance of carbon black.

[0014] The device's first cooling zone is connected to the first cooling water inlet pipe and the first cooling water outlet pipe; the second cooling zone is connected to the second cooling water inlet pipe and the second cooling water outlet pipe; and the third cooling zone is connected to the third cooling water inlet pipe and the third cooling water outlet pipe. The first, second, and third cooling water inlet pipes are respectively equipped with a first flow regulating valve, a second flow regulating valve, and a third flow regulating valve. The inner wall of the screw conveyor is equipped with a first temperature sensor, a second temperature sensor, and a third temperature sensor at corresponding locations in the first, second, and third cooling zones. The first temperature sensor is interlocked with the first flow regulating valve, the second temperature sensor with the second flow regulating valve, and the third temperature sensor with the third flow regulating valve. This configuration effectively regulates the cooling rate of the screw conveyor, improving the quality of the carbon black while ensuring good cooling efficiency.

[0015] The inner wall of the jacket of this device is provided with multiple heat-conducting fins, which are arranged in an alternating pattern. The surface of the heat-conducting fins is provided with multiple flow-guiding grooves, and the edges of the flow-guiding fins are provided with multiple flow-guiding teeth. The combined arrangement of flow-guiding grooves, flow-guiding teeth, and heat-conducting fins can increase turbulence to enhance heat transfer and improve cooling efficiency.

[0016] The screw conveyor of this device includes a casing, within which rotating screw conveyor blades are mounted. The ends of the screw conveyor blades are equipped with crushing teeth. These crushing teeth can break up carbon black clumps, increasing the contact area between the material and the cooling medium, and accelerating heat dissipation.

[0017] The screw conveyor of this device is equipped with an exhaust port, which is connected to a cyclone separator. High-temperature, humid air generated during the conveying and cooling of materials enters the cyclone separator through the exhaust port, effectively separating carbon black dust from the humid air and discharging the hot air, preventing heat accumulation and reducing environmental pollution. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the heat-conducting fins;

[0021] In the diagram, 1. Screw conveyor; 101. Shell; 102. Jacket; 103. Baffle; 104. First cooling zone; 105. Second cooling zone; 106. Third cooling zone; 107. Screw conveyor blades; 108. Crushing teeth; 2. Cyclone separator; 3. Fan; 4. Carbon black collection tank; 5. First cooling water inlet pipe; 6. First cooling water outlet pipe; 7. Second cooling water inlet pipe; 8. Second cooling water outlet pipe; 9. Third cooling water inlet pipe; 10. Third cooling water outlet pipe; 11. First flow regulating valve; 12. Second flow regulating valve; 13. Third flow regulating valve; 14. First temperature sensor; 15. Second temperature sensor; 16. Third temperature sensor; 17. Heat-conducting fins; 18. Guide groove; 19. Guide teeth; 20. Exhaust port. Detailed Implementation

[0022] 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.

[0023] Example 1

[0024] As shown in the figure, a cooling device for carbon black production is characterized by comprising a screw conveyor 1, a cyclone separator 2, a fan 3, and a carbon black collection tank 4. The discharge ports of the screw conveyor 1 and the cyclone separator 2 are connected to the carbon black collection tank 4. The screw conveyor 1 is externally equipped with a jacket 102, which is divided into a first cooling zone 104, a second cooling zone 105, and a third cooling zone 106 by multiple partitions 103. The first cooling zone 104 is connected to a first cooling water inlet pipe 5 and a first cooling water outlet pipe 6, respectively. The second cooling zone 105 is connected to a second cooling water inlet pipe 7 and a second cooling water outlet pipe 8, respectively. The third cooling zone 106 is connected to a third cooling water inlet pipe 9 and a third cooling water outlet pipe 10, respectively. The first cooling water inlet pipe 5, the second cooling water inlet pipe 7, and the third cooling water inlet pipe 9 are respectively equipped with a first flow regulating valve 11, a second flow regulating valve 12, and a third flow regulating valve 13. 3. The inner wall of the screw conveyor 1 is provided with a first temperature sensor 14, a second temperature sensor 15, and a third temperature sensor 16 at corresponding locations in the first cooling zone 104, the second cooling zone 105, and the third cooling zone 106, respectively. The first temperature sensor 14 is interlocked with the first flow regulating valve 11, the second temperature sensor 15 with the second flow regulating valve 12, and the third temperature sensor 16 with the third flow regulating valve 13. The arrangement of the first cooling zone 104, the second cooling zone 105, and the third cooling zone 106, with each cooling zone forming an interlocked control with the temperature sensor inside the screw conveyor 1 through a separate flow regulating valve, thereby dynamically adjusting the cooling water flow rate according to the actual temperature of different sections, achieving precise temperature control of different sections inside the screw conveyor 1, avoiding agglomeration or structural damage of carbon black due to sudden cooling, and thus ensuring the uniformity of carbon black particles and the stability of physical properties.

[0025] The inner wall of the jacket 102 is provided with multiple heat-conducting fins 17, the surface of the heat-conducting fins 17 is provided with multiple flow-guiding grooves 18, and the edge of the flow-guiding fins is provided with multiple flow-guiding teeth 19. The combined arrangement of the heat-conducting fins 17, flow-guiding grooves 18, and flow-guiding teeth 19 can increase the turbulence enhancement structure. The flow-guiding grooves 18 and flow-guiding teeth 19 can break the laminar boundary layer of the cooling water, improve convective heat transfer, and thus improve heat transfer efficiency; moreover, the flow-guiding grooves 18 can guide the water flow to flush the surface of the heat-conducting fins 17 and the inner wall of the jacket 102, reduce scale deposition, and extend the equipment cleaning cycle.

[0026] In this embodiment, the screw conveyor 1 includes a housing 101, within which a screw conveying blade 107 is rotatably disposed. The ends of the screw conveying blade 107 are provided with crushing teeth 108. During the conveying of carbon black material, the crushing teeth simultaneously break up carbon black clumps, preventing carbon black agglomeration from affecting the material conveying speed and improving cooling uniformity.

[0027] In this embodiment, multiple heat-conducting fins 17 are arranged in an alternating manner. The alternating arrangement of the heat-conducting fins 17 forms a turbulent flow channel, causing the cooling water to form a complex flow pattern of spiral ascent and descent, thereby enhancing the convective heat transfer efficiency.

[0028] In this embodiment, the screw conveyor 1 is equipped with an exhaust port 20, which is connected to the cyclone separator 2. The negative pressure of the fan 3 is used to separate and recover the hot air and loose dust during the conveying and cooling process.

[0029] In this embodiment, the inlets and outlets of the first cooling zone 104, the second cooling zone 105, and the third cooling zone 106 are respectively located at the end furthest from the feed inlet of the screw conveyor 1 and the end closest to the feed inlet of the screw conveyor 1. This arrangement causes the water flow direction to be opposite to the material flow direction, forming a counter-current heat exchange mode and improving heat exchange efficiency.

[0030] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cooling device for carbon black production, characterized in that: The system includes a screw conveyor, a cyclone separator, a blower, and a carbon black collection tank. The discharge ports of the screw conveyor and the cyclone separator are connected to the carbon black collection tank. The screw conveyor is externally equipped with a jacket, which is divided into a first cooling zone, a second cooling zone, and a third cooling zone by multiple partitions. The first cooling zone is connected to a first cooling water inlet pipe and a first cooling water outlet pipe; the second cooling zone is connected to a second cooling water inlet pipe and a second cooling water outlet pipe; and the third cooling zone is connected to a third cooling water inlet pipe and a third cooling water outlet pipe. The first, second, and third cooling water inlets are respectively... The screw conveyor is equipped with a first flow regulating valve, a second flow regulating valve, and a third flow regulating valve. The inner wall of the screw conveyor is respectively equipped with a first temperature sensor, a second temperature sensor, and a third temperature sensor at corresponding locations in the first cooling zone, the second cooling zone, and the third cooling zone. The first temperature sensor is interlocked with the first flow regulating valve, the second temperature sensor is interlocked with the second flow regulating valve, and the third temperature sensor is interlocked with the third flow regulating valve. The inner wall of the jacket is provided with multiple heat-conducting fins, the surface of the heat-conducting fins is provided with multiple flow-guiding grooves, and the edge of the heat-conducting fins is provided with multiple flow-guiding teeth.

2. The carbon black production cooling device according to claim 1, characterized in that: The screw conveyor includes a housing, within which screw conveying blades are rotatably mounted, and the ends of the screw conveying blades are provided with crushing teeth.

3. The carbon black production cooling device according to claim 1, characterized in that: Multiple heat-conducting fins are arranged in an alternating pattern.

4. A cooling device for carbon black production according to claim 1, characterized in that: The screw conveyor is equipped with an exhaust port, which is connected to the cyclone separator.

5. A carbon black production cooling device according to claim 1, characterized in that: The inlets and outlets of the first, second, and third cooling zones are respectively located at the feed inlet end away from the screw conveyor and the feed inlet end close to the screw conveyor.

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