Carbon black granulating apparatus

Abstract

The application discloses a kind of carbon black granulating equipment, it is related to carbon black granulating technical field, including conveying cabin and granulating equipment, the granulating equipment is assembled in the middle area of conveying cabin, and the top end of granulating equipment is connected with steam pipeline, the top of conveying cabin is connected with raw material inlet, the inside of conveying cabin is movably equipped with auger blade.The carbon black granulating equipment, by the cooperation of cold air unit and second connecting pipe and air inlet pipe and through opening, so that the carbon black granulating equipment in the working process, cold air unit preparation wind beam, and wind beam is input into air inlet pipe by second connecting pipe, wind beam in air inlet pipe is sprayed through through opening, act on the carbon black particles that will be output in conveying cabin, cooperate with the output of output pipe auxiliary carbon black particles, avoid carbon black particles to adhere in the inner wall of conveying cabin or the outside of auger blade, to reduce the residue of carbon black particles in equipment, improve the output effect of product in equipment.

Description

Technical Field

[0001] This invention relates to the field of carbon black granulation technology, specifically to a carbon black granulation device. Background Technology

[0002] Carbon black is a chemical substance, a black powdery substance produced by the incomplete combustion or pyrolysis of hydrocarbons in the gas phase under strictly controlled process conditions. Its main component is elemental carbon, with small amounts of oxygen, hydrogen, and sulfur. Carbon black particles are nearly spherical, with a particle size ranging from 10 to 500 μm. Many particles often fuse or aggregate into three-dimensional dendritic or fibrous aggregates. In rubber processing, it is added to rubber through compounding as a reinforcing agent and filler. It is one of the oldest industrial products.

[0003] Carbon black granulation is the process of turning poorly flowing, easily airborne powdered carbon black into granules through continuous rotation within a granulator. Granulated carbon black is easier to transport and use, while also reducing pollution to the working environment. Carbon black granulation is divided into wet granulation and dry granulation, and can be further divided into virgin carbon black granulation and pyrolysis carbon black granulation. This is partly due to the environmental pollution caused by powdered carbon black, and partly due to customer requirements regarding carbon black morphology. Virgin carbon black granulation technology is already widespread, but research on pyrolysis carbon black granulation technology is still under further investigation.

[0004] Existing carbon black granulation equipment can feed carbon powder and steam into the granulation equipment during operation. After a series of processing steps, solid granules are formed and output by auger blades. However, there are still some shortcomings in actual operation. During the granulation process, due to the influence of steam, the moisture inside the equipment is relatively large. This causes the carbon black to stick to the outside of the conveying mechanism after the granulation process is completed and discharged. The residual moisture between the carbon black granules is also not conducive to the accumulation and storage of the product. At the same time, the surface of the carbon black granules still retains the residual heat generated during the granulation process, which makes it difficult to collect them in a timely manner. To address these issues, we have designed a carbon black granulation equipment. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a carbon black granulation device that solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a carbon black granulation device, comprising a conveying chamber and a granulation device, wherein the granulation device is assembled in the middle region of the conveying chamber, and a steam pipe is connected to the top of the granulation device; a raw material inlet is connected to the top of the conveying chamber; an auger blade is movably fitted inside the conveying chamber, and a drive motor associated with the auger blade is installed outside the conveying chamber; an output pipe and an air inlet pipe are fitted at the output end of the conveying chamber; a cooling air unit is fixedly installed at the top of the air inlet pipe, and the air inlet pipe is connected to the conveying chamber through uniformly distributed through openings; a second connecting pipe is connected between the cooling air unit and the air inlet pipe; the steam pipe passes through the inside of the air inlet pipe, and uniformly distributed heat-conducting fins are connected between the steam pipe and the air inlet pipe.

[0007] Furthermore, the conveying chamber is fitted with two sets of fixed pipes symmetrically distributed on both sides of the granulation equipment. A support base is welded to the bottom of the fixed pipes, and a fixed frame is fixedly connected between the drive motor and the conveying chamber.

[0008] Furthermore, the air inlet pipe is located above the conveying chamber, and the output pipe is located below the conveying chamber, with the positions of the output pipe and the air inlet pipe corresponding.

[0009] Furthermore, the exterior of the conveying chamber is provided with openings that match the air inlet pipe and the outlet pipe, and the conveying chamber is provided with water vapor outlets that are evenly distributed on both sides of the air inlet pipe.

[0010] Furthermore, symmetrically distributed cold air pipes are fixedly installed on both sides of the output pipe, and nozzles extending to the inside of the output pipe are connected to the cold air pipes. The cold air pipes are connected to the cold air unit through a first connecting pipe.

[0011] Furthermore, the cold air duct is located in the middle of the outer side of the output duct, and the end of the nozzle is tilted downwards.

[0012] Furthermore, a buffer plate located at the bottom inner side of the output tube is installed inside the output tube, and the buffer plate has evenly distributed discharge ports.

[0013] Furthermore, the granulation equipment is provided with a condensate outlet at the bottom, and an electronic valve is provided outside the condensate outlet.

[0014] Furthermore, the connection end of the second connecting pipe to the air inlet pipe is located above the heat-conducting fins, and the area outside the steam pipe located inside the air inlet pipe and the heat-conducting fins are both made of copper.

[0015] This invention provides a carbon black granulation device, which has the following beneficial effects:

[0016] 1. This carbon black granulation equipment, through the combined use of a cold air unit, a second connecting pipe, an air inlet pipe, and a through opening, enables the cold air unit to generate an air jet during operation. This air jet is then fed into the air inlet pipe through the second connecting pipe. The air jet in the air inlet pipe is ejected through the through opening, acting on the carbon black granules that are about to be output from the conveying chamber. This, in conjunction with the output pipe, assists in the output of the carbon black granules, preventing the carbon black granules from adhering to the inner wall of the conveying chamber or the outside of the auger blades. This reduces the amount of residual carbon black granules in the equipment and improves the output efficiency of the product.

[0017] 2. This carbon black granulation equipment, through the combined use of steam pipes, heat-conducting fins, air inlet pipes, and water vapor outlets, allows the granulated carbon black particles to be transported to the air inlet pipe. High-temperature steam flows through the steam pipe, and external heat is dissipated through the heat-conducting fins. Air jets generated by the cold air unit are input into the air inlet pipe through a second connecting pipe and heated by the external heat-conducting fins of the steam pipe. This raises the temperature of the air jets entering the conveying chamber. While blowing the carbon black particles out, the air jets also dry the particles and discharge any residual moisture through the water vapor outlet, effectively reducing the moisture content of the output carbon black particles and facilitating their storage after output.

[0018] 3. This carbon black granulation equipment, through the combined use of a cold air unit, a first connecting pipe, a cold air pipe, and a buffer plate, allows the carbon black granules output from the output pipe to fall onto the buffer plate. The cold air prepared by the cold air unit is input into the cold air pipe through the first connecting pipe and sprayed out through the nozzles on the cold air pipe to cool down the falling carbon black granules and the carbon black granules remaining on the buffer plate. At the same time, the carbon black granules accumulated on the buffer plate are blown to the discharge port for discharge, thereby effectively reducing the temperature of the carbon black granules at the time of output, which facilitates the subsequent collection of carbon black granules. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of the delivery chamber of the present invention;

[0021] Figure 3 This is a schematic diagram of the outer structure of the steam pipe and air inlet pipe of the present invention;

[0022] Figure 4 This is a schematic diagram of the internal structure of the air inlet pipe of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure between the air cooler unit and the output pipe of the present invention;

[0024] Figure 6 This is a schematic diagram of the internal structure of the output tube of the present invention.

[0025] In the diagram: 1. Conveying chamber; 2. Granulation equipment; 3. Fixed pipe; 4. Raw material inlet; 5. Drive motor; 6. Fixed frame; 7. Steam pipe; 8. Air inlet pipe; 9. First connecting pipe; 10. Second connecting pipe; 11. Air cooler unit; 12. Water vapor outlet; 13. Output pipe; 14. Cold air pipe; 15. Support base; 16. Screwdriver blade; 17. Condensate outlet; 18. Through opening; 19. Heat-conducting fins; 20. Nozzle; 21. Buffer plate; 22. Discharge port. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0027] Please see Figures 1 to 4 The present invention provides a technical solution: a carbon black granulation device, including a conveying chamber 1 and a granulation device 2. The granulation device 2 is assembled in the middle region of the conveying chamber 1, and a steam pipe 7 is connected to the top of the granulation device 2. A condensate outlet 17 is provided at the bottom of the granulation device 2. The steam in the process of preparing carbon black particles in the granulation device 2 will cool and form condensate. An electronic valve is provided outside the condensate outlet 17. The condensate accumulated in the granulation device 2 can be discharged through the condensate outlet 17. The electronic valve outside the condensate outlet 17 can control the discharge time of the condensate. A raw material inlet 4 is connected to the top of the conveying chamber 1. Raw material carbon powder is input into the conveying chamber 1 through the raw material inlet 4. Steam is input into the interior of the granulation device 2 through the steam pipe 7.

[0028] The conveying chamber 1 is fitted with two sets of fixed pipes 3 symmetrically distributed on both sides of the granulation equipment 2. When the carbon powder raw material is conveyed to the granulation equipment 2, the carbon powder comes into contact with the steam and is granulated under the action of the granulation equipment 2 to form carbon black particles. The principle and operation of this granulation equipment 2 are the same as the existing technology, and will not be described in detail here. A support base 15 is welded to the bottom of the fixed pipe 3. The fixed pipe 3 on the outside of the conveying chamber 1 can cooperate with the support base 15 to support and fix the entire conveying chamber 1, ensuring the height of the equipment.

[0029] A fixing frame 6 is fixedly connected between the drive motor 5 and the conveying chamber 1 to facilitate product output and provide a stable working environment for the entire equipment. The fixing frame 6 between the drive motor 5 and the conveying chamber 1 can enhance the stability of the drive motor 5 fixed outside the conveying chamber 1. The auger blades 16 are movably mounted inside the conveying chamber 1, and the drive motor 5 associated with the auger blades 16 is installed outside the conveying chamber 1. The drive motor 5 works and drives the auger blades 16 in the conveying chamber 1 to rotate through its drive shaft, so as to convey the carbon powder raw material and the prepared carbon black particles.

[0030] Please see Figures 2 to 5 The output end of the conveying chamber 1 is equipped with an output pipe 13 and an air inlet pipe 8. A cold air unit 11 is fixedly installed on the top of the air inlet pipe 8, and the air inlet pipe 8 is connected to the conveying chamber 1 through evenly distributed through openings 18. When the cold air unit 11 is working, it can generate cold air and output the cold air through the first connecting pipe 9 and the second connecting pipe 10. The air inlet pipe 8 is located above the conveying chamber 1, and the output pipe 13 is located below the conveying chamber 1. The air inlet pipe 8 is used to input the air stream that assists in the output of the carbon black granules into the conveying chamber 1. Therefore, the air inlet pipe 8 is set above the conveying chamber 1, and the position of the output pipe 13 corresponds to that of the air inlet pipe 8. The output pipe 13 is used to output the carbon black granules prepared in the conveying chamber 1. Its position needs to correspond to that of the air stream output from the air inlet pipe 8 to ensure the effect of the air stream output from the air inlet pipe 8 on the carbon black granules.

[0031] A second connecting pipe 10 connects the air cooler unit 11 to the air inlet pipe 8. The steam pipe 7 passes through the inside of the air inlet pipe 8, and uniformly distributed heat-conducting fins 19 connect the steam pipe 7 and the air inlet pipe 8. The connection end of the second connecting pipe 10 to the air inlet pipe 8 is located above the heat-conducting fins 19. The second connecting pipe 10 is used to input the cold air prepared by the air cooler unit 11 into the air inlet pipe 8. The air stream needs to pass through the outside of the heat-conducting fins 19 to ensure the heating effect of the air stream. Therefore, the connection between the second connecting pipe 10 and the air inlet pipe 8 is set above the heat-conducting fins 19. The area of ​​the steam pipe 7 located inside the air inlet pipe 8 and the heat-conducting fins 19 are both made of copper. The high-temperature steam passing through the steam pipe 7, and the fact that the steam pipe 7 and the heat-conducting fins 19 are made of copper, allows the external temperature of the steam pipe 7 to be dissipated through the heat-conducting fins 19, thereby heating the passing air stream.

[0032] The outside of the conveying chamber 1 is provided with an opening that matches the air inlet pipe 8 and the outlet pipe 13. The through opening on the outside of the conveying chamber 1 facilitates the entry of the air jet into the conveying chamber 1 and the output of the carbon black particles. The conveying chamber 1 is provided with water vapor outlets 12 that are evenly distributed on both sides of the air inlet pipe 8. The heated air jet blows the carbon black particles in the conveying chamber 1 and dries the carbon black particles at the same time, and discharges the residual moisture in the particles through the water vapor outlets 12, thereby reducing the moisture in the output carbon black particles.

[0033] Please see Figures 3 to 6Symmetrically distributed cold air pipes 14 are fixedly installed on both sides of the output pipe 13. A nozzle 20 extending to the inside of the output pipe 13 is connected to the cold air pipe 14. The cold air pipe 14 is connected to the cold air unit 11 through the first connecting pipe 9. The cold air prepared by the cold air unit 11 can be input into the cold air pipe 14 through the first connecting pipe 9 and sprayed out through the nozzle 20 on the cold air pipe 14 to cool down the carbon black particles falling in the output pipe 13. The cold air pipe 14 is located in the middle of the outer side of the output pipe 13. The cold air pipe 14 can spray the cold air output by the cold air unit 11 through the nozzle 20.

[0034] The nozzle 20 is tilted downwards so that the cold air can fully act on the outside of the carbon black particles passing through the output pipe 13, ensuring the cooling range of the cold air. A buffer plate 21 is installed in the output pipe 13 at the bottom of the inner side of the output pipe 13. The buffer plate 21 installed in the output pipe 13 can buffer the output carbon black particles, increase the time that the carbon black particles are subjected to the cold air in the output pipe 13, thereby ensuring the cooling effect on the carbon black particles. The buffer plate 21 has evenly distributed discharge ports 22. The air jets sprayed from the nozzle 20 can blow the carbon black particles accumulated on the buffer plate 21 to the discharge ports 22 for discharge.

[0035] In summary, during operation, the carbon black granulation equipment uses a system where raw carbon powder is fed into the conveying chamber 1 through the raw material inlet 4, and steam is introduced into the granulation equipment 2 through the steam pipe 7. The drive motor 5 operates, and its drive shaft rotates the auger blades 16 in the conveying chamber 1, conveying the carbon powder. When the carbon powder reaches the granulation equipment 2, it comes into contact with the steam and undergoes granulation under the action of the granulation equipment 2 to form carbon black granules. After the carbon black granules are prepared, they continue to be conveyed and moved to the output pipe 13 under the action of the auger blades 16. The cold air unit 11 generates an air jet, which is fed into the air inlet pipe 8 through the second connecting pipe 10. The air jet in the air inlet pipe 8 is ejected through the through opening 18, acting on the carbon black granules about to be output from the conveying chamber 1. This, combined with the output pipe 13, assists in the output of the carbon black granules, preventing the carbon black granules from adhering to the inner wall of the conveying chamber 1 or the outside of the auger blades 16. The steam passing through the steam pipe 7... High-temperature steam causes the external temperature of the steam pipe 7 to dissipate through the heat-conducting fins 19. When the air bundle prepared by the cold air unit 11 is input into the air inlet pipe 8 through the second connecting pipe 10, it is heated by the heat-conducting fins 19 on the outside of the steam pipe 7, thereby increasing the temperature of the air bundle entering the conveying chamber 1. While blowing the carbon black particles out, the air bundle dries the carbon black particles, expelling the residual moisture in the particles through the water vapor outlet 12, reducing the moisture in the output carbon black particles. The carbon black particles output through the output pipe 13 fall onto the buffer plate 21. The cold air prepared by the cold air unit 11 is input into the cold air pipe 14 through the first connecting pipe 9 and sprayed out through the nozzles 20 on the cold air pipe 14 to cool down the falling carbon black particles and the carbon black particles remaining on the buffer plate 21. At the same time, the carbon black particles accumulated on the buffer plate 21 are blown to the discharge port 22 for discharge, completing the entire working process of the carbon black granulation equipment.

[0036] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Moreover, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A carbon black granulation device, comprising a conveying chamber (1) and a granulation device (2), wherein the granulation device (2) is assembled in the middle region of the conveying chamber (1), and a steam pipe (7) is connected to the top of the granulation device (2), and a raw material inlet (4) is connected to the top of the conveying chamber (1), characterized in that: The inner side of the conveying chamber (1) is fitted with auger blades (16), and the outside of the conveying chamber (1) is equipped with a drive motor (5) associated with the auger blades (16). The output end of the conveying chamber (1) is fitted with an output pipe (13) and an air inlet pipe (8). The outside of the conveying chamber (1) is provided with openings that match the air inlet pipe (8) and the output pipe (13). The conveying chamber (1) is provided with water vapor outlets (12) evenly distributed on both sides of the air inlet pipe (8). A cold air unit (11) is fixedly installed on the top of the air inlet pipe (8), and the air inlet pipe (8) and the conveying chamber (1) are connected by evenly distributed through openings (18). The output pipe (13) is fixedly installed with symmetrically distributed cold air pipes (14). A nozzle (20) extending to the inside of the output pipe (13) is connected to the air duct (14), and the cold air duct (14) and the cold air unit (11) are connected by a first connecting pipe (9). The cold air duct (14) is located in the middle of the outside of the output pipe (13). The end of the nozzle (20) is tilted downward. A buffer plate (21) located at the bottom of the inside of the output pipe (13) is installed in the output pipe (13). The buffer plate (21) has evenly distributed discharge ports (22). A second connecting pipe (10) is connected between the cold air unit (11) and the air inlet pipe (8). The steam pipe (7) passes through the inside of the air inlet pipe (8), and evenly distributed heat-conducting fins (19) are connected between the steam pipe (7) and the air inlet pipe (8).

2. The carbon black granulation equipment according to claim 1, characterized in that: The conveying chamber (1) is fitted with two sets of fixed pipes (3) symmetrically distributed on both sides of the granulation equipment (2). A support base (15) is welded to the bottom of the fixed pipe (3). A fixed frame (6) is fixedly connected between the drive motor (5) and the conveying chamber (1).

3. The carbon black granulation equipment according to claim 1, characterized in that: The air inlet pipe (8) is located above the conveying chamber (1), and the output pipe (13) is located below the conveying chamber (1), with the output pipe (13) corresponding to the position of the air inlet pipe (8).

4. The carbon black granulation equipment according to claim 1, characterized in that: The granulation equipment (2) is provided with a condensate outlet (17) at the bottom end, and an electronic valve is provided on the outside of the condensate outlet (17).

5. The carbon black granulation equipment according to claim 1, characterized in that: The connection end of the second connecting pipe (10) and the air inlet pipe (8) is located above the heat-conducting fins (19). The area outside the steam pipe (7) located inside the air inlet pipe (8) and the heat-conducting fins (19) are both made of copper.

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