Carbon black reaction furnace

Abstract

The utility model relates to the technical field of carbon black production, in particular to a carbon black reacting furnace which comprises a reacting furnace body, the gas gun head is arranged in the reaction furnace body along the axial direction of the reaction furnace body and can be used for spraying gas; and the first air distribution disc is positioned in the reaction furnace body and sleeves the periphery of the gas gun head. According to the carbon black reaction furnace provided by the utility model, gas is sprayed into the reaction furnace body through the gas gun head and is combusted with air with a certain rotational flow angle, so that the gas is combusted more sufficiently, the temperature of a hearth of the reaction furnace is increased, secondary combustion of raw oil is reduced, the yield is increased, and the unit consumption of a carbon black product is reduced.

Description

Technical Field

[0001] This utility model relates to the field of carbon black production technology, and in particular to a carbon black reaction furnace. Background Technology

[0002] In existing technologies, carbon black reactors used in carbon black production, such as... Figure 1 As shown, a gas distributor is used to mix and burn gas injected radially and air injected axially. This combustion method results in combustion not reaching the center, low combustion efficiency, and some raw material oil participating in secondary combustion, providing heat to the reactor, leading to reduced output and increased oil consumption.

[0003] Therefore, how to ensure complete combustion of coal gas, increase combustion temperature, reduce secondary combustion of raw oil, increase output, and reduce carbon black consumption per unit area has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] This utility model provides a carbon black reactor to solve the problems of how to make the gas burn completely, increase the combustion temperature, reduce the secondary combustion of raw oil, increase the output, and reduce the unit consumption of carbon black.

[0005] This utility model provides a carbon black reaction furnace, comprising:

[0006] Reactor body;

[0007] A gas nozzle is disposed along the axial direction of the reactor body and is capable of injecting gas.

[0008] The first air distribution plate is located inside the reactor body and is fitted around the outer periphery of the gas nozzle.

[0009] In some embodiments, the first air distribution disc includes:

[0010] The swirl blades are at an angle of 30-50° to the axial direction perpendicular to the reactor body.

[0011] In some embodiments, the front end of the gas nozzle is circumferentially distributed with multiple injection ports, and the injection ports form an angle of 70-90° with the axial direction of the reactor body.

[0012] In some embodiments, the reactor body includes a wind jacket, a transition section, and a reaction section that are sequentially sealed and connected.

[0013] In some embodiments, the fan sleeve is provided with a first air inlet in the circumferential direction.

[0014] In some embodiments, the first air distribution plate is located between the air jacket and the transition section.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. The carbon black reactor provided by this utility model has its gas nozzle changed from radial injection to axial injection. The gas nozzle is injected into the reactor body and mixed with air with a certain swirling angle for combustion, which makes the gas combustion more complete, increases the furnace temperature of the reactor, reduces the secondary combustion of raw material oil, increases output, and reduces carbon black consumption per unit.

[0017] 2. The carbon black reactor provided by this utility model eliminates the gas distributor of the carbon black reactor and uses a transition section instead, which extends the service life of the reactor. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a carbon black reactor in the prior art;

[0019] Figure 2 This is a schematic diagram of the structure of some specific embodiments of a carbon black reactor according to this utility model;

[0020] Figure 3 yes Figure 2 The diagram shows the structure of the first air distribution plate.

[0021] Figure 4 yes Figure 2 Top view of some specific embodiments of the gas nozzle shown.

[0022] In the attached diagram, 1 is the reactor body; 13 is the air jacket; 14 is the transition section; 15 is the reaction section; 2 is the gas nozzle; 21 is the injection port; 3 is the first air distribution plate; 31 is the swirl vane; 8 is the main supply fan; 9 is the gas pressurizing fan; and 10 is the first air inlet. Detailed Implementation

[0023] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] As described in the background section, traditional carbon black reactors use a gas distributor to mix radially injected gas with axially injected air for combustion. This combustion method suffers from incomplete combustion at the center, low combustion efficiency, and the secondary combustion of some feedstock oil, which provides heat to the reactor, leading to reduced output and increased oil consumption. Therefore, how to ensure complete gas combustion, increase combustion temperature, reduce secondary combustion of feedstock oil, increase output, and reduce carbon black consumption per unit area has become a pressing technical problem for those skilled in the art.

[0025] To solve the above problems, refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 This utility model provides a carbon black reactor, including: a reactor body 1, a gas nozzle 2, and a first air distribution plate 3. The reactor body 1 includes a wind sleeve 13, a transition section 14, and a reaction section 15 that are sequentially sealed and connected. The top of the wind sleeve 13 is provided with a first air inlet 10. The gas nozzle 2 is arranged in the reactor body 1 along the axial direction and is capable of injecting gas. The first air distribution plate 3 is fixedly installed in the reactor body 1 and sleeved on the outer periphery of the gas nozzle 2. Preferably, the first air distribution plate 3 is located between the wind sleeve 13 and the transition section 14.

[0026] In practice, the main air supply fan 8 pressurizes and draws air to the first air inlet 10, and then distributes it evenly to the outer periphery of the gas nozzle 2 through the first air distribution plate 3. The gas pressurizing fan 9 pressurizes the gas and draws it to the gas nozzle 2. The gas nozzle 2 sprays gas and ignites it under the action of the igniter.

[0027] The carbon black reactor provided by this utility model has a gas nozzle that is changed from radial injection to axial injection. The gas is injected into the reactor body 1 through the gas nozzle 2 and mixed with air with a certain swirling angle for combustion, making the combustion of gas more concentrated and complete, increasing the furnace temperature, reducing secondary combustion of raw material oil, increasing output, and reducing carbon black consumption per unit.

[0028] In some embodiments, the first air distribution plate 3 includes multiple swirl blades 31, which are at an angle of 30-50° to the axial direction perpendicular to the reactor body 1. This design allows air to pass through the swirl blades 31, forming a spiral airflow with a certain swirl angle. On the one hand, this facilitates uniform mixing of air and gas, resulting in more concentrated and complete gas combustion and increasing the furnace temperature. On the other hand, while ensuring uniform mixing of air and gas, the spiral airflow drives the gas and combustion flame from the transition section 14 to the reaction section 15, promoting the formation of carbon black.

[0029] In some embodiments, the front end of the gas nozzle 2 has multiple circumferentially distributed injection ports 21, which are at an angle of 70-90° to the axis of the reactor body 1. This design ensures that the circumferentially injected gas mixes thoroughly with air at a certain swirling angle for combustion. Setting the angle to 70-90° creates turbulence between the injected gas and the air at a certain swirling angle, further promoting mixing and combustion, resulting in more complete combustion.

[0030] In some embodiments, the gas nozzles 2 are arranged parallel to the igniter, and there are four gas nozzles 2 evenly distributed around the outer periphery of the igniter. Along the direction near the reaction section 15, the length of the gas nozzles 2 is greater than the length of the igniter; that is, the end of the gas nozzle 2 is closer to the reaction section 15 than the end of the igniter. Along the direction near the reaction section 15, the injection port 21 is located at the front end of the igniter. This design allows the injection port 21 to inject gas outwards, where the gas mixes with swirling air. The igniter then ignites the gas concentrated around the injection port 21, concentrating combustion around it. This further concentrates and fully combusts the gas, increases the furnace temperature, reduces secondary combustion of the feed oil, increases output, and reduces carbon black consumption per unit area.

[0031] In some embodiments, the first air distribution plate 3 has one igniter mounting port and four gas nozzle mounting ports. The igniter mounting port is located at the center of the first air distribution plate 3, and the gas nozzle mounting ports are distributed around its outer periphery. The igniter mounting port is used to install the igniter, and the gas nozzle mounting ports are used to install the gas nozzles 2. One side of the air sleeve 13 is detachably connected to the furnace door cover, and one end of the gas nozzles 2 and the igniter is fixedly installed on the furnace door cover. With this design, the first air distribution plate 3, while adjusting the airflow direction, can also serve to install and fix the gas nozzles 2 and the igniter, thereby improving the stability of the gas nozzles 2 and the igniter.

[0032] In some embodiments, the gas nozzle 2 includes a nozzle body and a gas pipe connected by threads. The nozzle body has an injection port 21 on its outer periphery. The number of nozzles with different injection ports 21 can be changed according to the amount of gas required to produce different varieties.

[0033] Compared to traditional carbon black reactors, where radially injected gas and axially injected air do not mix and burn completely, resulting in some feedstock oil participating in combustion and thus high oil consumption per ton of carbon black, the carbon black reactor provided by this invention addresses these issues. Firstly, by injecting gas into the reactor body through a gas nozzle and allowing it to burn with air at a certain swirl angle, the combustion of the gas becomes more concentrated and complete, increasing the furnace temperature, reducing secondary combustion of feedstock oil, improving output, and lowering the unit consumption of carbon black. Secondly, by eliminating the gas distributor in the carbon black reactor and replacing it with a transition section, the service life of the reactor is extended.

[0034] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0038] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A carbon black reactor, characterized by, The application relates to a coal gasification reactor, which comprises a reactor body, a coal gas gun head arranged in the reactor body along the axial direction of the reactor body and capable of spraying coal gas, and a first air distribution disc located in the reactor body and sleeved on the outer periphery of the coal gas gun head. The first air distribution disc comprises swirl vanes with an included angle of 30-50 DEG with the axial direction of the reactor body. The front end of the coal gas gun head is circumferentially provided with a plurality of spray ports with an included angle of 70-90 DEG with the axial direction of the reactor body. The reactor body comprises a wind sleeve, a transition section and a reaction section which are sequentially and sealingly connected.

2. The carbon black reactor of claim 1, wherein The wind sleeve is circumferentially provided with a first air inlet. The first air distribution disc is located between the wind sleeve and the transition section.

3. The carbon black reactor of claim 1, wherein ​ 4. The carbon black reactor according to any one of claims 1 to 3, characterized in that ​ 5. The carbon black reactor of claim 4, wherein ​ 6. The carbon black reactor of claim 4, wherein ​

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