Combustion device of carbon black reacting furnace

Abstract

The utility model discloses a combustion device of a carbon black reaction furnace, and belongs to the technical field of carbon black production equipment. A through groove facilitating connection is formed in one side of the dust removal box, a discharging pipe is arranged at the bottom of the dust removal box, and the discharging pipe penetrates through the bottom of the dust removal box to communicate with the material gathering plate; one side of the neutralization box is fixedly communicated with a tap pipe used for conveying alkaline water, the top of the neutralization box is also provided with a penetrating type plug-in port, and the neutralization box is communicated with the dust removal box through the plug-in port; the edge side of the filter screen is welded to the inner wall of the filter box, the filter box communicates with the dust removal box, and a gas inlet pipe connected with a carbon black production tail gas conveying pipe is arranged on the side, away from the dust removal box, of the filter box; the side wall of the denitration box is welded with the side wall of the dust removal box, the denitration box and the filter box are symmetrical relative to the dust removal box, and the denitration box is communicated with the dust removal box through a connecting pipe provided with a one-way valve. The tail gas treatment device can be used for treating tail gas generated in carbon black production, so that the practicability of the device is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of carbon black production equipment, and in particular to a carbon black reaction furnace combustion device. Background Technology

[0002] Carbon black, also known as carbon black, is an amorphous carbon product obtained from the incomplete combustion or thermal decomposition of carbonaceous substances under insufficient air conditions. During its production, incomplete combustion produces gases containing nitrogen oxides. Existing combustion devices for carbon black production lack corresponding treatment equipment for these gases, causing environmental pollution. Therefore, a new type of carbon black reactor combustion device is urgently needed.

[0003] A search revealed, for example (Authorization Announcement No. CN221740177U), a carbon black reactor combustion device, comprising a furnace door cover and a combustion section, a throat, and a reaction section connected in sequence. A gas and fuel oil spray gun is axially inserted into the furnace door cover, with one end located at the front end of the throat and the other end located outside the furnace door cover. Several feed oil inlets are radially arranged at the throat, including multiple first feed oil inlets and multiple second feed oil inlets arranged front and rear, with the first and second feed oil inlets staggered. The reaction section contains a sloped section and a straight pipe section arranged in sequence, with the sloped section having an angle of 20°~25°. This device solves the problem of incomplete pyrolysis in existing carbon black production processes. However, this device cannot treat the tail gas generated during carbon black production, reducing its practicality. Utility Model Content

[0004] The purpose of this invention is to provide a carbon black reactor combustion device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a carbon black reactor combustion device, comprising;

[0006] The dust collector has a through groove on one side for easy connection and a discharge pipe at the bottom for easy connection. The discharge pipe passes through the bottom of the dust collector and connects to the arc-shaped material collection plate.

[0007] The neutralization box has a connecting pipe for transporting alkaline water fixed on one side, and a through-type insertion interface on the top of the neutralization box, through which the neutralization box is connected to the dust collection box.

[0008] The filter screen is welded to the inner wall of the filter box, the filter box is connected to the dust collector, and the side of the filter box away from the dust collector is provided with an air inlet pipe connected to the carbon black production tail gas conveying pipe.

[0009] The denitrification box has its side walls welded to the side walls of the dust collector box. The denitrification box and the filter box are symmetrical to the dust collector box. The denitrification box is connected to the dust collector box through a connecting pipe equipped with a one-way valve.

[0010] As a preferred embodiment, a linear motor is fixed to the inner wall of the filter box, and smooth round rods are provided on both sides of the linear motor. The two round rods are slidably connected to a slider, and two fixing plates are welded to the slider and the moving part of the linear motor.

[0011] In a preferred embodiment, the slider and the moving part of the linear motor are fixed to the same connecting plate, and a brush plate for cleaning dust is connected to the end of the connecting plate away from the slider. The brush plate is slidably connected to the filter screen.

[0012] As a preferred embodiment, a dust removal port is provided on the side of the filter screen near the air inlet pipe, and the dust removal port is located between the linear motor and the filter screen.

[0013] As a preferred embodiment, a water tank is welded to the top of the dust collector, and the top of the water tank has a through-type filling port with a cover.

[0014] As a preferred embodiment, a submersible water pump is installed inside the water tank. The output end of the water pump passes through the top of the dust collector and is connected to a hollow spray plate. The top of the spray plate is fixed to the inner top wall of the dust collector, and several equally spaced nozzles are connected to the bottom of the spray plate.

[0015] As a preferred embodiment, an exhaust fan is embedded in the side wall of the dust collection box, and the exhaust fan is connected to a connecting pipe, the other end of which extends into the interior of the denitrification box.

[0016] As a preferred embodiment, a connecting pipe for adding ammonia is connected to one side of the denitrification box. The connecting pipe extends into the interior of the denitrification box and is connected to a nozzle through a connecting branch pipe. The nozzle is fixed to the inner wall of the denitrification box through a connecting long plate. The bottom wall of the denitrification box is provided with a material gathering trough that is consistent with the structure of a funnel. The material gathering trough is connected to an air outlet with a valve that runs through the bottom of the denitrification box.

[0017] As a preferred embodiment, a filter plate is slidably connected inside the neutralization box. One end of the filter plate is screwed to a handle for easy pulling. Two T-shaped sliding plates are also welded to the side of the filter plate. A drain outlet is provided at the bottom of the neutralization box.

[0018] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0019] The combustion device of this carbon black reactor, with its filter box, can filter large dust particles in the air entering the device through the air inlet pipe. Under the action of the screen plate and dust removal port, the large dust particles are cleaned up. In conjunction with the atomizing spray nozzles on the top of the dust removal box, the pre-treated air is dusted down. The exhaust gas generated in carbon black production is treated in stages, with each part performing its own function, which improves the treatment effect and efficiency of the device for exhaust gas.

[0020] The carbon black reactor combustion device, under the action of the exhaust fan, transports the treated exhaust gas to the inside of the denitrification box through the connecting pipe. Ammonia gas is injected into the denitrification box through the connecting pipe. With the help of the nozzle, the nitrogen oxide exhaust gas can be fully mixed with ammonia gas. Under the acid-base neutralization chemical reaction, the denitrification treatment of the exhaust gas is completed.

[0021] The water used for dust suppression is filtered through a filter plate inside the filter box via a discharge pipe and a connector. Alkaline liquid is then introduced through a branch pipe on one side of the filter box to mix the acidic liquid with the alkaline water, further treating the dust suppression wastewater and preventing direct discharge that could pollute the environment, thus improving the practicality of the device.

[0022] This device solves the problem that existing equipment cannot treat the exhaust gas generated during carbon black production, avoids the environmental impact of exhaust gas containing nitrogen oxides, and improves the practicality of the device. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of a carbon black reactor combustion device according to the present invention;

[0025] Figure 2 For practical purposes Figure 1 A cross-sectional view of the entire AA-direction device;

[0026] Figure 3 This is a schematic diagram of the neutralization box of this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the filter plate of this utility model;

[0028] Figure 5 This is a schematic diagram of the connection between the linear motor and the brush plate of this utility model;

[0029] Figure 6This is a schematic diagram of the connection between the filter screen and the brush plate of this utility model;

[0030] Figure 7 For practical purposes Figure 1 Schematic diagram of the half-section structure of the central spray plate.

[0031] Explanation of reference numerals in the attached figures:

[0032] In the diagram: 1. Air inlet pipe; 2. Filter box; 3. Linear motor; 4. Dust collection box; 5. Water inlet; 6. Water tank; 7. Water pump; 8. Connecting pipe; 9. Denitrification box; 10. Connecting pipe; 11. Air outlet; 12. Neutralization box; 13. Branch pipe; 14. Drain outlet; 15. Handle; 16. Dust removal port; 17. Brush plate; 18. Nozzle; 19. Exhaust fan; 20. Nozzle; 21. Discharge pipe; 22. Filter plate; 23. Filter screen; 24. Insertion interface; 25. Slide plate; 26. Round rod; 27. Connecting plate; 28. Fixing plate; 29. ​​Slider; 30. Spray plate. Detailed Implementation

[0033] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0034] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0035] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0036] An embodiment of a carbon black reactor combustion device, such as Figures 1 to 7 As shown, this utility model mainly addresses the problem that the tail gas containing nitrogen oxides generated during the carbon black production process cannot be handled by existing carbon black production combustion devices. This device can be connected to the tail gas output structure of the combustion device via a bracket, or it can be installed side by side with the combustion device via a fixed frame. The tail gas is transported through a conveying pipe connected to the air inlet pipe 1. The specific installation method can be selected according to the actual situation, including:

[0037] The dust collector 4 has a water tank 6 welded to its top. The top of the water tank 6 has a through-type water inlet 5 with a cover. A submersible water pump 7 is fixed to the inner bottom wall of the water tank 6. The output end of the water pump 7 passes through the bottom of the water tank 6 and the top of the dust collector 4 and is connected to a hollow spray plate 30. The top of the spray plate 30 is welded to the inner top wall of the dust collector 4. Several equally spaced nozzles 18 are provided at the bottom of the spray plate 30. Under the action of the water pump 7, the nozzles 18 output the water inside the water tank 6, so that the exhaust gas generated by the pre-treated carbon black production can be dusted by the atomized spray of the nozzles 18. A through groove is provided on one side of the dust collector 4 for easy connection. A discharge pipe 21 is provided at the bottom of the dust collector 4 for easy connection. The discharge pipe 21 passes through the bottom of the dust collector 4 and is connected to an arc-shaped material gathering plate. The discharge pipe 21 can discharge the wastewater generated by the spray dust suppression.

[0038] The neutralization tank 12 has a branch pipe 13 fixed on one side for conveying alkaline water. The branch pipe 13 is connected to the conveying pipe for conveying alkaline liquid, thus conveying the alkaline liquid into the interior of the neutralization tank 12. The top of the neutralization tank 12 is also provided with a through-type insertion port 24, which is connected to the dust collector 4. The insertion port 24 is connected to the discharge pipe 21, thus conveying wastewater into the interior of the neutralization tank 12. Inside the neutralization tank 12, a filter plate 22 is slidably connected. The end of the filter plate 22 is screwed with a handle 15, which allows for convenient... The filter plate 22 can be pulled out, which facilitates the regular cleaning of the screen inside the filter plate 22 and the dust accumulated on the screen surface, maintaining the filtration and dust removal effect of the filter plate 22. Two T-shaped sliding plates 25 are welded to the side of the filter plate 22. The side wall of the sliding plate 25 is slidably connected to the inner wall of the neutralization tank 12. Since the wastewater comes into contact with the tail gas containing nitrogen oxides, the wastewater is acidic as a whole. Through acid-base neutralization, the water inside the neutralization tank 12 is made neutral, so that when it is discharged from the drain outlet 14 at the bottom of the neutralization tank 12, it avoids environmental pollution and improves the practicality of the device.

[0039] Filter screen 23 is welded to the inner wall of filter box 2. Filter box 2 is connected to dust collector box 4. One side of filter box 2 is provided with an air passage that communicates with a through groove. Through the communication between the air passage and the through groove, the exhaust gas containing nitrogen oxides filtered by filter screen 23 can be transported to the interior of dust collector box 4. The side of filter box 2 away from dust collector box 4 is provided with an air inlet pipe 1 connected to the carbon black production exhaust gas conveying pipe. A linear motor 3 is welded inside filter box 2. The linear motor 3 has two symmetrical smooth circular outer peripheral surfaces fixed to the inner wall of filter box 2 on both sides. Rod 26 is slidably connected to slider 29. A fixing plate 28 is welded between slider 29 and the moving part of linear motor 3. The fixing plate 28, slider 29 and the moving part of linear motor 3 are fixed to the same connecting plate 27. A brush plate 17 is connected to the connecting plate 27. The side wall of brush plate 17 abuts against filter screen 23. Driven by linear motor 3, the filter screen 23 is cleaned to avoid long-term clogging of the filter screen 23. Together with the dust removal port 16 set at the bottom of filter box 2, the cleaned dust is discharged.

[0040] The denitrification box 9 has its side wall welded to the side wall of the dust collector box 4. The denitrification box 9 and the filter box 2 are symmetrical to the dust collector box 4. The denitrification box 9 is connected to the dust collector box 4 through a connecting pipe 8 with a one-way valve. A connecting pipe 10 for ammonia injection is provided on one side of the denitrification box 9. The connecting pipe 10 passes through the side wall of the denitrification box 9 and connects to a hollow long plate. The side wall of the long plate is welded to the inner wall of the denitrification box 9. Several nozzles 20 are evenly arranged on the side of the long plate away from the inner wall of the denitrification box 9. The nozzles 20 fully diffuse the ammonia gas entering through the connecting pipe 10 into the interior of the denitrification box 9, so that the treated tail gas containing nitrogen oxides is mixed with ammonia gas. A material gathering trough with the same structure as the funnel is provided on the inner bottom wall of the denitrification box 9. The material gathering trough is connected to the air outlet 11 with a valve at the bottom of the denitrification box 9, so as to facilitate the discharge of the treated gas and water.

[0041] The linear motor 3, water pump 7, and exhaust fan 19 are all conventional instruments. Their working principles, dimensions, and models are irrelevant to the function of this application, so they will not be described in detail. Since they are in a high-temperature, humid, and alkaline environment for a long time, the equipment is treated with high-temperature resistance, corrosion prevention, and sealing. There are maintenance and sealing doors on the back of the device to facilitate the periodic disassembly, maintenance, and replacement of internal components. The control method of this utility model is through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0042] Working principle

[0043] When using this carbon black reactor combustion device, the air inlet pipe 1 is connected to the tail gas pipe that transports the carbon black produced. Under the action of the filter screen 23, the large particulate matter contained in the tail gas is filtered. The linear motor 3 is started to drive the brush plate 17 to move, and the filter screen 23 and the mesh are cleaned regularly.

[0044] Then, the pretreated exhaust gas enters the dust collector 4. Water is added into the water tank 6 through the water inlet 5. The water pump 7 is controlled to work and spray the water in the water tank 6 through the nozzle 18 to atomize and spray the exhaust gas entering the dust collector 4. Then, in conjunction with the exhaust fan 19, the treated exhaust gas is input into the denitrification box 9 through the connecting pipe 8 equipped with a one-way valve.

[0045] At this time, ammonia gas is delivered to nozzle 20 through connecting pipe 10. Nozzle 20 evenly diffuses ammonia gas into the interior of denitrification box 9, so that ammonia gas and nitrogen oxides are fully mixed. After the reaction is completed and after a period of time, it is discharged through the set gas outlet 11.

[0046] Finally, the wastewater generated by the spray dust removal is transported to the interior of the neutralization tank 12 through the connection of the discharge pipe 21 and the inlet 24. One side of the neutralization tank 12 is connected to the branch pipe 13, which transports the alkaline liquid into the interior of the neutralization tank 12. Because a filter plate 22 is provided in the middle of the neutralization tank 12, the filter plate 22 filters the wastewater. Since the wastewater is in contact with nitrogen oxide tail gas, it can be discharged through the drain outlet 14 after mixing and reacting with the alkaline liquid.

[0047] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0048] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A carbon black reactor combustion device, characterized in that, include; The dust collector (4) has a through groove on one side for easy connection and a discharge pipe (21) at the bottom for easy connection. The discharge pipe (21) passes through the bottom of the dust collector (4) and is connected to the arc-shaped material gathering plate. Neutralization box (12), one side of which is fixed with a branch pipe (13) for conveying alkaline water, and the top of the neutralization box (12) is also provided with a through-type insertion interface (24), and the neutralization box (12) is connected to the dust removal box (4) through the insertion interface (24); The filter screen (23) is welded to the inner wall of the filter box (2) on its side. The filter box (2) is connected to the dust collector (4), and the filter box (2) is provided with an air inlet pipe (1) connected to the carbon black production tail gas conveying pipe on the side away from the dust collector (4). The denitrification box (9) has its side wall welded to the side wall of the dust collector box (4). The denitrification box (9) and the filter box (2) are symmetrical to the dust collector box (4). The denitrification box (9) is connected to the dust collector box (4) through a connecting pipe (8) with a one-way valve.

2. The carbon black reactor combustion device according to claim 1, characterized in that: The filter box (2) is fixed with a linear motor (3) on its inner wall. The linear motor (3) is also provided with smooth outer circular rods (26) on both sides. The two circular rods (26) are slidably connected to a slider (29). The slider (29) and the moving part of the linear motor (3) are welded with two fixing plates (28).

3. The carbon black reactor combustion device according to claim 2, characterized in that: The slider (29) and the moving part of the linear motor (3) are fixed with the same connecting plate (27). The end of the connecting plate (27) away from the slider (29) is connected to a brush plate (17) that can clean dust. The brush plate (17) is slidably connected to the filter screen (23).

4. The carbon black reactor combustion device according to claim 3, characterized in that: The filter (23) has a dust removal port (16) on the side near the air inlet pipe (1), and the dust removal port (16) is located between the linear motor (3) and the filter (23).

5. The carbon black reactor combustion device according to claim 1, characterized in that: The top of the dust collector (4) is welded with a water tank (6), and the top of the water tank (6) is provided with a through-type water inlet (5) with a cover plate.

6. The carbon black reactor combustion device according to claim 5, characterized in that: The water tank (6) is equipped with a submersible water pump (7). The output end of the water pump (7) passes through the top of the dust collector (4) and is connected to the hollow spray plate (30). The top of the spray plate (30) is fixed to the inner top wall of the dust collector (4). The bottom of the spray plate (30) is connected to several equally spaced nozzles (18).

7. The carbon black reactor combustion device according to claim 6, characterized in that: The dust removal box (4) is equipped with an exhaust fan (19) embedded in its side wall. The exhaust fan (19) is connected to the connecting pipe (8), and the other end of the connecting pipe (8) extends into the interior of the denitrification box (9).

8. The carbon black reactor combustion device according to claim 7, characterized in that: The denitrification box (9) is connected to a connecting pipe (10) for adding ammonia gas on one side. The connecting pipe (10) extends into the interior of the denitrification box (9). The connecting pipe (10) is connected to a nozzle (20) through a connecting branch pipe. The nozzle (20) is fixed to the inner wall of the denitrification box (9) through a connecting long plate. The bottom wall of the denitrification box (9) is provided with a material gathering trough that is consistent with the structure of a funnel. The material gathering trough is connected to an air outlet (11) with a valve that penetrates the bottom of the denitrification box (9).

9. The carbon black reactor combustion device according to claim 1, characterized in that: The neutralization box (12) has a filter plate (22) slidably connected inside. One end of the filter plate (22) is screwed with a handle (15) for easy pulling. Two T-shaped sliding plates (25) are also welded to the side of the filter plate (22). The bottom of the neutralization box (12) is provided with a drain outlet (14).

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