Quenching device for carbon black production

Abstract

The utility model relates to a quenching device for carbon black production. The quenching device comprises a first cooling assembly, a second cooling assembly, a first quenching water connecting pipe, a cooling air connecting pipe, a second quenching water connecting pipe and a third quenching water connecting pipe, the first cooling assembly and the second cooling assembly are the same in structure, and each cooling assembly comprises a first quenching water pipe, a cooling air pipe, a second quenching water pipe, an atomized water nozzle, a branch pipe and a cooling air nozzle; the first cooling assembly and the second cooling assembly are arranged at intervals and surround the carbon black reaction furnace. The carbon black reaction furnace disclosed by the utility model can overcome the defect that the section of the quenching section of the existing carbon black reaction furnace is lack of atomized quenching water locally, can fully and effectively terminate the carbon black reaction, reduces the side reaction of the carbon black, improves the quality and yield of the carbon black, does not need to frequently insert and pull out a quenching water gun, and can quickly spray enough atomized quenching water.

Description

Technical Field

[0001] The present application relates to the technical field of carbon black flue gas quenching, and in particular to a carbon black production quenching device. Background Art

[0002] In the carbon black production process, an important process step is to inject quenching water through a quenching water gun in the quenching section of the carbon black reactor to cool the carbon black flue gas, fully and effectively terminate the reaction, thereby reducing the surface roughness of the carbon black, improving the surface activity, quality and yield of the carbon black, and reducing the consumption of crude oil. The quenching section of a conventional carbon black reactor is usually provided with multiple rows of insertion ports for quenching water guns. When using a quenching water gun to inject quenching water, it is necessary to insert the quenching water gun row by row and switch the corresponding valves. The efficiency is low and the valves are easily detached due to frequent plugging and unplugging of the quenching water gun, thus affecting production. At the same time, due to the large cross-section of the reactor quenching section, the atomized quenching water sprayed by the quenching water gun has a dead angle for injection, and the cross-section of the reactor quenching section lacks atomized quenching water locally, resulting in uneven and incomplete termination of the carbon black reaction, and some carbon black is still undergoing side reactions, thus affecting the quality and yield of the carbon black. Summary of the invention

[0003] The purpose of the utility model is to provide a carbon black production quenching device, which can overcome the defect that the cross-section of the quenching section of the existing reactor is partially lacking in atomized quenching water, can fully and effectively terminate the carbon black reaction, reduce the occurrence of carbon black side reactions, and improve the quality and yield of carbon black. There is no need to frequently plug and unplug the quenching water gun, and a sufficient amount of atomized quenching water can be quickly sprayed in.

[0004] The technical solution adopted by the utility model is: a carbon black production quenching device, comprising a first cooling component, a second cooling component, a first quenching water connecting pipe, a cooling air connecting pipe, a second quenching water connecting pipe and a third quenching water connecting pipe; the first cooling component has the same structure as the second cooling component, including a first quenching water pipe, a cooling air pipe and a second quenching water pipe coaxially sleeved from the inside to the outside, the bottom end of the first quenching water pipe is provided with an atomizing water nozzle, the bottom end of the cooling air pipe is provided with a downwardly inclined branch pipe, the bottom end of the branch pipe is provided with a cooling air nozzle, and the branch pipe surrounds the atomizing water nozzle. Nozzle setting; the first cooling component is spaced from the second cooling component and is arranged around the carbon black reactor, the first cooling pipe of the first cooling component is connected through a first quenching water connecting pipe, the first cooling pipe of the first cooling component and the second cooling component are connected through a third quenching water connecting pipe, the cooling air pipes of the first cooling component and the second cooling component are connected through a cooling air connecting pipe, and the second quenching water pipes of the first cooling component and the second cooling component are connected through a second quenching water connecting pipe; a water inlet and a water outlet are provided on the first quenching water connecting pipe and the second quenching water connecting pipe, and an air inlet and an air outlet are provided on the cooling air connecting pipe.

[0005] Furthermore, a three-way ball valve is provided at the connection between the first cooling pipe of the second cooling assembly and the third quenching water connecting pipe.

[0006] Furthermore, the spray angle of the atomized water nozzle of the first cooling component is 45°~60°, and the spray angle of the atomized water nozzle of the second cooling component is 10°~15°.

[0007] The beneficial effects of the utility model are:

[0008] (1) The first cooling assembly and the second cooling assembly buried in the quenching section of the reactor replace the quenching water gun. When quenching water needs to be sprayed, a large amount of atomized quenching water can be quickly sprayed by opening the valve, thereby quickly terminating the carbon black production reaction. There is no need to frequently plug and unplug the quenching water gun, thereby reducing the failure rate of the device;

[0009] (2) Cooling air can be sprayed into the quenching section of the reactor through the cooling air nozzles on the first cooling assembly and the second cooling assembly. The cooling air can change the spraying angle and direction of the atomized quenching water, thereby reducing the spraying dead angle, overcoming the defect of the existing reactor quenching section having a partial lack of atomized quenching water, fully and effectively terminating the carbon black reaction, reducing the occurrence of carbon black side reactions, and improving the quality and yield of carbon black;

[0010] (3) The cooling air pipe and the second quenching water pipe of the first cooling assembly and the second cooling assembly can cool the first cooling assembly and the second cooling assembly, thereby extending the service life of the first cooling assembly and the second cooling assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0013] Figure 2 for Figure 1 A partial enlarged view of part A;

[0014] Figure 3 It is a cross-sectional view of the first cooling component and the second cooling component in an embodiment of the present utility model.

[0015] Explanation of the accompanying drawings: 1-first quenching water connecting pipe, 2-cooling air connecting pipe, 3-second quenching water connecting pipe, 4-third quenching water connecting pipe, 5-first quenching water pipe, 6-cooling air pipe, 7-second quenching water pipe, 8-atomizing water nozzle, 9-branch pipe, 10-cooling air nozzle, 11-water inlet, 12-water outlet, 13-air inlet, 14-air outlet, 15-three-way ball valve, 16-quenching section. DETAILED DESCRIPTION

[0016] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments. In the following description, many specific details are set forth to facilitate a full understanding of the utility model, but the utility model can also be implemented in other ways different from those described herein, and therefore, the utility model is not limited to the limitations of the specific embodiments disclosed below.

[0017] Unless otherwise defined, the technical or scientific terms used herein shall have the usual meanings understood by persons of ordinary skill in the field described in this application. The words "first", "second" and similar terms used in this patent application specification and claims do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "an" do not indicate a quantity limitation, but indicate the existence of at least one. Words such as "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship also changes accordingly.

[0018] like Figure 1~Figure 2 As shown, a carbon black production quenching device comprises a first cooling assembly, a second cooling assembly, a first quenching water connecting pipe 1, a cooling air connecting pipe 2, a second quenching water connecting pipe 3 and a third quenching water connecting pipe 4. The first cooling assembly and the second cooling assembly are used to spray atomized quenching water into the quenching section 16 of the carbon black reactor.

[0019] The first cooling assembly has the same structure as the second cooling assembly, including a first quenching water pipe 5, a cooling air pipe 6 and a second quenching water pipe 7 coaxially sleeved from the inside to the outside. An atomizing water nozzle 8 is provided at the bottom end of the first quenching water pipe 5. Quenching water is connected through the first quenching water pipe 5, and atomized quenching water is sprayed out by the atomizing water nozzle 8 to cool the carbon black flue gas to terminate the reaction. The bottom end of the cooling air pipe 6 is provided with a downwardly inclined branch pipe 9, and the bottom end of the branch pipe 9 is provided with a cooling air nozzle 10, and the branch pipe 9 is arranged around the atomizing water nozzle 8; the cooling air is connected through the cooling air pipe 6, on the one hand, the first quenching water pipe 5 and the atomizing water nozzle 8 are cooled, and the service life of the device is extended; on the other hand, the cooling air can promote the flow of atomized quenching water and the flow of carbon black smoke, reduce the injection dead angle of the atomizing water nozzle 8, and overcome the defect that the cross section of the existing reactor part of the quenching section 16 lacks atomized quenching water; at the same time, the contact area between the atomized quenching water and the carbon black smoke is increased, the carbon black reaction is fully and effectively terminated, the occurrence of carbon black side reactions is reduced, and the quality and yield of carbon black are improved. The quenching water is connected through the second quenching water pipe 7, and the first cooling component and the second cooling component can be further cooled.

[0020] The first cooling assembly is spaced apart from the second cooling assembly and is arranged around the carbon black reactor. The first cooling pipe of the first cooling assembly is connected through the first quenching water connecting pipe 1, the first cooling pipe of the first cooling assembly and the second cooling assembly are connected through the third quenching water connecting pipe 4, the cooling air pipe 6 of the first cooling assembly and the second cooling assembly is connected through the cooling air connecting pipe 2, and the second quenching water pipe 7 of the first cooling assembly and the second cooling assembly is connected through the second quenching water connecting pipe 3; the first quenching water connecting pipe 1 and the second quenching water connecting pipe 3 are provided with a water inlet 11 and a water outlet 12, and the cooling air connecting pipe 2 is provided with an air inlet 13 and an air outlet 14. The first cooling assembly is a common cooling assembly and is in a common state during the carbon black production process, that is, when the production executes the quenching step, the first cooling assembly must be turned on, and the second cooling assembly is turned on according to the production needs. In the embodiment of the utility model, a three-way ball valve 15 is provided at the connection between the first cooling pipe of the second cooling assembly and the third quenching water connecting pipe 4. If the quenching water sprayed by the first cooling component can meet the production demand, the three-way ball valve 15 is closed and the second cooling component is not connected; if the quenching water sprayed by the first cooling component still cannot meet the production demand, the three-way ball valve 15 is opened and the second cooling component is connected to supplement the atomized quenching water. The first cooling component is a common cooling component, and the spray angle of its atomized water nozzle 8 is relatively large, which is 45°~60°. The second cooling component acts as a supplementary cooling component, and the spray angle of its atomized water nozzle 8 is relatively small, which is 10°~15°.

[0021] The working principle of the embodiment of the utility model is:

[0022] The embodiment of the utility model is buried in the quenching section 16 of the carbon black reactor, and the corresponding number of rows of the embodiment of the utility model can be set according to the production requirements and the size of the quenching section 16 of the carbon black reactor, thereby replacing the original multiple rows of quenching water gun insertion ports and quenching water guns. The water inlet 11 on each row of the first quenching water connecting pipe 1 and the second quenching water connecting pipe 3 and the air inlet 13 on the cooling air connecting pipe 2 can be connected together respectively, and the quenching water and cooling air are uniformly introduced. When it is necessary to spray quenching water, quenching water is injected into the water inlet 11 on the first quenching water connecting pipe 1 and the second quenching water connecting pipe 3, and cooling air is introduced into the air inlet 13 on the cooling air connecting pipe 2, and the quenching water flows through the first quenching water pipe 5 and the second quenching water pipe 7. The quenching water flowing through the first quenching water pipe 5 is sprayed into the quenching section 16 of the carbon black reactor by the atomizing water nozzle 8 to cool the carbon black flue gas. The quenching water flowing through the second quenching water pipe 7 is discharged through the water outlet 12 on the second quenching water connecting pipe 3 to form an external circulation of quenching water to cool the first cooling component and the second cooling component. The cooling wind flows through the cooling air pipe 6 and is sprayed by the cooling air nozzle 10 to promote the flow of atomized quenching water and carbon black flue gas. During the quenching process, the water outlet 12 of the first quenching water connecting pipe 1 is closed, and the water outlet 12 of the second quenching water connecting pipe 3 and the air outlet 14 on the cooling air connecting pipe 2 are opened. The purpose of opening the air outlet 14 is to avoid excessive cooling wind pressure in the reactor. If the quenching water sprayed into the first cooling component is not enough to meet the production demand, the three-way ball valve 15 can be opened to connect to the second cooling component. The three-way ball valve 15 can be an electronic ball valve, and a control signal can be sent through the remote controller to control the operation of the electronic ball valve. The working principle of the second quenching water assembly is the same as that of the first quenching water assembly. After the quenching is completed, the injection of quenching water and cooling air is stopped, and the outlet 12 of the first quenching water connecting pipe 1 is opened to discharge the residual quenching water in the first quenching water pipe 5.

[0023] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A carbon black production quenching device, characterized in that: It comprises a first cooling assembly, a second cooling assembly, a first quenching water connecting pipe, a cooling air connecting pipe, a second quenching water connecting pipe and a third quenching water connecting pipe; the first cooling assembly has the same structure as the second cooling assembly, comprising a first quenching water pipe, a cooling air pipe and a second quenching water pipe which are coaxially sleeved from the inside to the outside, an atomizing water nozzle is arranged at the bottom end of the first quenching water pipe, a downwardly inclined branch pipe is arranged at the bottom end of the branch pipe, a cooling air nozzle is arranged at the bottom end of the branch pipe, and the branch pipe is arranged around the atomizing water nozzle; the first cooling assembly is spaced apart from the second cooling assembly and is arranged around the carbon black reactor, the first cooling pipe of the first cooling assembly is connected through the first quenching water connecting pipe, the first cooling pipe of the first cooling assembly and the second cooling assembly are connected through the third quenching water connecting pipe, the cooling air pipes of the first cooling assembly and the second cooling assembly are connected through the cooling air connecting pipe, and the second quenching water pipes of the first cooling assembly and the second cooling assembly are connected through the second quenching water connecting pipe; the first quenching water connecting pipe and the second quenching water connecting pipe are provided with a water inlet and a water outlet, and the cooling air connecting pipe is provided with an air inlet and an air outlet.

2. A carbon black production quenching device according to claim 1, characterized in that: A three-way ball valve is provided at the connection between the first cooling pipe of the second cooling assembly and the third quenching water connecting pipe.

3. A carbon black production quenching device according to claim 1, characterized in that: The spray angle of the atomized water nozzle of the first cooling component is 45°~60°, and the spray angle of the atomized water nozzle of the second cooling component is 10°~15°.

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