Continuous automatic carbon black production device and system

Abstract

The invention discloses a continuous automatic carbon black production device and system, and particularly relates to the technical field of carbon black production, the continuous automatic carbon black production device comprises a support table, a first combustion body and a second combustion body are fixedly installed on the support table, and a conveying mechanism is fixedly installed at the bottom end of the first combustion body and the bottom end of the second combustion body; the first combustion body comprises a combustion furnace body, the combustion furnace body is fixedly installed on the support table, a sealing cover is fixedly installed at the top end of the combustion furnace body, a heat conduction cavity is formed in the combustion furnace body, and two partition longitudinal strips which are symmetrically distributed are fixedly installed in the heat conduction cavity; according to the automatic carbon black production device, the first combustion body and the second combustion body which are the same in structure are arranged, carbon black can be produced in the two combustion furnace bodies in a combustion mode, and the carbon black production efficiency is improved. Continuous carbon black production is formed, and the overall production efficiency of the carbon black is improved.

Description

Technical Field

[0001] This invention relates to the field of carbon black production technology, specifically to a continuous automated carbon black production device and system. Background Technology

[0002] Traditional acetylene carbon black production mostly adopts the calcium carbide process, which involves reacting calcium carbide with water to generate acetylene, which is then pyrolyzed at high temperatures to produce carbon black. However, this process has inherent drawbacks such as high calcium carbide consumption, low yield, high production costs, and significant environmental pressure, making it difficult to meet the demands of large-scale, low-cost production. To optimize the production process, the industry has gradually developed a technical solution for preparing carbon black by mixing acetylene with benzene. By introducing benzene as an auxiliary raw material, the consumption of calcium carbide is effectively reduced, the carbon black yield is increased, and the production cost structure is significantly optimized. However, existing carbon black production equipment still has some problems in practical use: In actual production, a single combustion furnace is mostly used for combustion reaction. During the production process, the low-temperature tail gas (mainly composed of hydrogen) returned from the rear needs to be cooled to terminate the carbon black reaction, which cannot effectively achieve continuous carbon black production. Secondly, the benzene raw material needs to be heated and gasified by a separate heating system before it is added, and its reaction requires separate energy consumption. Therefore, we propose a continuous automated carbon black production equipment and system to solve the above problems. Summary of the Invention

[0003] The purpose of this invention is to provide a continuous automated carbon black production apparatus and system to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a continuous automated carbon black production device, including a support platform, on which a first combustion body and a second combustion body are fixedly installed, and a conveying mechanism is fixedly installed at the bottom end of the first combustion body and the second combustion body; The first combustion body includes a combustion furnace body, which is fixedly mounted on a support platform. A cover is fixedly mounted on the top of the combustion furnace body. A heat-conducting cavity is formed in the combustion furnace body. Two symmetrically distributed longitudinal dividing strips are fixedly mounted in the heat-conducting cavity, dividing the heat-conducting cavity into a left cavity and a right cavity. A first horizontal pipe and a second horizontal pipe are fixedly mounted at the bottom and top of the left cavity, respectively. A third horizontal pipe and a fourth horizontal pipe are fixedly mounted at the bottom and top of the right cavity, respectively. A U-shaped scraper frame is provided on the inner side of the combustion furnace body. The U-shaped scraper frame contacts the inner wall of the combustion furnace body. A rotating bracket is rotatably mounted in the middle of the cover. The rotating bracket is fixedly mounted on the U-shaped scraper frame. A first longitudinal pipe and a second longitudinal pipe are fixedly clamped on the cover. The bottom ends of the first longitudinal pipe and the second longitudinal pipe extend into the combustion furnace body. Combustion nozzles are fixedly mounted at the bottom ends of the first longitudinal pipe and the second longitudinal pipe. The rotating bracket movably passes through the combustion nozzles.

[0005] As a preferred embodiment of the present invention, a reflux cavity is provided in the U-shaped scraper frame, and a plurality of evenly distributed grooves are provided on the inner side of the U-shaped scraper frame. The plurality of grooves and the reflux cavity are interconnected. An inner sealing longitudinal plate is slidably installed on the side of the reflux cavity near the groove. A through groove corresponding to the groove is provided on the inner sealing longitudinal plate. A lifting rod is fixedly installed on the side of the reflux cavity near the inner sealing longitudinal plate. The driving end of the lifting rod is fixedly installed with the corresponding inner sealing longitudinal plate.

[0006] As a preferred embodiment of the present invention, a sealing rotating component is fixedly installed at the bottom center of the U-shaped scraper frame, and a return inlet pipe is fixedly installed at the center of the sealing rotating component. The end of the return inlet pipe away from the sealing rotating component is fixedly snapped into the bottom of the combustion furnace body, and the end of the return inlet pipe away from the sealing rotating component extends out of the outer side of the combustion furnace body.

[0007] As a preferred embodiment of the present invention, a first motor is fixedly installed on the top of the cover, and the drive end of the first motor and the top shaft end of the rotating bracket are fixedly installed.

[0008] As a preferred embodiment of the present invention, the first and second burners are symmetrically distributed. The second burner is fixedly installed on the support platform through the combustion furnace body. A No. 1 tee pipe is provided between the first horizontal pipes of the first and second burners. A first valve is fixedly installed at both ends of the No. 1 tee pipe and between the first horizontal pipes of the first and second burners. An acetylene main inlet pipe is fixedly installed at the end of the No. 1 tee pipe.

[0009] As a preferred embodiment of the present invention, a first connecting pipe is fixedly installed at the end of the third horizontal pipe in both the first and second combustion bodies, and a second tee pipe is provided between the two first connecting pipes. A second valve is fixedly installed at both ends of the second tee pipe and between the first connecting pipes on both sides.

[0010] As a preferred embodiment of the present invention, a return main pipe is provided at the outer end of the return inlet pipe of the first and second burners, and two return branch pipes are fixedly installed on the return main pipe. A third valve is fixedly installed between the return branch pipe and the return inlet pipe of the first and second burners.

[0011] As a preferred technical solution of the present invention, a second connecting pipe is provided between the second horizontal pipe in the first combustion body and the corresponding first vertical pipe in the second combustion body and the first combustion body, respectively. A first pump is fixedly installed on the second connecting pipe, and a fourth valve is fixedly installed between the second connecting pipe and the corresponding first vertical pipe. A third connecting pipe is provided between the fourth horizontal pipe in the first and second combustion bodies and the corresponding second vertical pipe in the second and first combustion bodies, respectively. A terminal benzene heating system and a second pump are fixedly installed on the third connecting pipe, and a fifth valve is fixedly installed between the third connecting pipe and the corresponding second vertical pipe.

[0012] As a preferred embodiment of the present invention, the conveying mechanism includes a top spiral conveying component, and a bottom spiral conveying component is provided below the end of the top spiral conveying component. The top spiral conveying component includes a conveying outer cylinder, in which a spiral auger is rotatably installed. A second motor is fixedly installed at one end of the conveying outer cylinder, and the drive end of the second motor and the shaft end of the spiral auger are fixedly installed. A clamping cavity is opened in the conveying outer cylinder, and an inlet pipe is fixedly installed at the end of the clamping cavity, and an outlet pipe is fixedly installed at the beginning of the clamping cavity. The bottom spiral conveyor has the same structure as the top spiral conveyor. Two discharge pipes are fixedly installed at the top of the initial end of the outer cylinder of the top spiral conveyor. Discharge valves are fixedly installed between the top of the discharge pipes and the bottom of the combustion furnace body of the first and second combustion bodies, respectively. A connecting longitudinal pipe is fixedly installed between the end of the outer conveying cylinder in the top spiral conveyor and the beginning of the outer conveying cylinder in the bottom spiral conveyor, and a discharge end pipe is fixedly installed at the end of the outer conveying cylinder in the bottom spiral conveyor. A fourth connecting pipe is fixedly installed between the end of the outlet pipe in the bottom spiral conveyor and the end of the inlet pipe in the top spiral conveyor. A third pump is fixedly installed on the fourth connecting pipe. A benzene inlet is fixedly installed at the end of the inlet pipe in the bottom spiral conveyor. A fifth connecting pipe is fixedly installed between the end of the outlet pipe in the top spiral conveyor and the end of the No. 2 tee pipe. A fourth pump is fixedly installed on the fifth connecting pipe.

[0013] A continuous automated carbon black production system for preparing carbon black from acetylene and benzene includes a raw material input module, a reaction module, a carbon black separation and collection module, a tail gas treatment module, and an automated control system. The system is characterized in that the raw material input module, reaction module, carbon black separation and collection module, and tail gas treatment module are sequentially and sealedly connected via conveying pipelines; and the automated control system is electrically connected to each module. The raw material input module includes an acetylene input module and a benzene input module. The acetylene input module and the benzene input module are respectively connected to the reaction module through metering and conveying pipelines, and can continuously supply acetylene and benzene raw materials according to a preset ratio. The carbon black separation and collection module is used to continuously separate the carbon black and tail gas mixture discharged from the reaction module, collect pure carbon black and transport it to subsequent storage or processing stages. The exhaust gas treatment module is used to purify the separated exhaust gas, separate and recover hydrogen from the exhaust gas, and some of the recovered hydrogen can be transported to the reaction module for low-temperature exhaust gas cooling to terminate the carbon black reaction. The remaining exhaust gas is discharged after purification to meet the standards.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This automated carbon black production device, by setting up a first burner and a second burner with the same structure, can produce carbon black by burning in two combustion furnaces, forming a continuous carbon black production and improving the overall production efficiency of carbon black.

[0015] 2. This automated carbon black production device, by setting up a first and a second combustion body with identical structures, can cross-recover heat from the first and second combustion bodies during the acetylene input process, and pre-treat the acetylene by heating it up, thereby improving the pyrolysis initiation efficiency of acetylene molecules and the formation rate of carbon black nuclei, so that carbon black is fully generated, thereby improving the overall production quality of carbon black.

[0016] 3. This automated carbon black production device, by setting up a first and second burner with identical structures and using a conveying mechanism, cross-recovers heat from the first and second burners as well as heat from the conveying mechanism during the input of benzene, preheating the benzene liquid twice, which can reduce the energy consumption of the end benzene heating system and further improve the overall efficiency of the device.

[0017] 4. This automated carbon black production unit, through the setting of a conveying mechanism, simultaneously transports and cools the produced carbon black and hydrogen, while simultaneously heating the benzene liquid once, thus realizing the recovery and utilization of heat. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. 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 the present invention.

[0020] Figure 2 This is a schematic diagram showing the structural connection of the first and second combustion bodies in this invention.

[0021] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle.

[0022] Figure 4 For the present invention Figure 2Enlarged view of point B in the middle.

[0023] Figure 5 This is a schematic diagram of the structure of the first combustion body in this invention.

[0024] Figure 6 For the present invention Figure 5 Enlarged view of point C in the middle.

[0025] Figure 7 For the present invention Figure 5 Enlarged view of point D in the middle.

[0026] Figure 8 This is a schematic diagram of the structural connection between the U-shaped scraper frame and the rotating bracket in this invention.

[0027] Figure 9 For the present invention Figure 8 Enlarged view of point E in the middle.

[0028] Figure 10 For the present invention Figure 8 Enlarged view of point F in the middle.

[0029] Figure 11 This is a schematic diagram of the conveying mechanism in this invention.

[0030] Figure 12 This is a schematic diagram of the top spiral conveyor in this invention.

[0031] Figure 13 For the present invention Figure 12 A magnified view of point G in the middle.

[0032] Figure 14 This is a schematic diagram showing the structural connection between the top spiral conveyor and the bottom spiral conveyor in this invention.

[0033] Figure 15 This is a diagram of the continuous automated carbon black production system in this invention.

[0034] In the diagram: 1. Support platform; 2. First combustion body; 3. Second combustion body; 4. Conveying mechanism; 5. No. 1 tee pipe; 51. First valve; 52. Acetylene main inlet pipe; 6. First connecting pipe; 61. No. 2 tee pipe; 62. Second valve; 7. Return main pipe; 71. Third valve; 8. Second connecting pipe; 81. First pump; 82. Fourth valve; 83. Third connecting pipe; 831. Terminal benzene heating system; 832. Second pump; 833. Fifth valve; 9. Discharge valve; 21. Combustion furnace body; 211. Cover; 212. First longitudinal pipe; 213. Second longitudinal pipe; 214. Combustion nozzle; 215. First motor; 22. First horizontal pipe; 221. Second horizontal pipe; 222. Third horizontal pipe; 223. Fourth horizontal pipe; 23. U-shaped scraper frame; 231. Return chamber; 232. Drainage trough; 233. Inner sealing longitudinal plate; 234. Through groove; 235. Lifting rod; 24. Rotating bracket; 25. Sealing rotating component; 251. Return inlet pipe; 201. Heat-conducting cavity; 202. Separating longitudinal bar; 41. Top spiral conveyor component; 411. Conveying outer cylinder; 412. Spiral auger; 413. Second motor; 401. Clamping cavity; 402. Inlet pipe; 403. Outlet pipe; 42. Bottom spiral conveyor component; 43. Discharge pipe; 44. Connecting longitudinal pipe; 441. Discharge end pipe; 45. Fourth connecting pipe; 451. Third pump; 46. Benzene inlet; 47. Fifth connecting pipe; 471. Fourth pump. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Example: Figure 1-14 As shown, the present invention provides a continuous automated carbon black production device, including a support platform 1, on which a first combustion body 2 and a second combustion body 3 are fixedly installed, and a conveying mechanism 4 is fixedly installed at the bottom end of the first combustion body 2 and the second combustion body 3. The first combustion body 2 includes a combustion furnace body 21, which is fixedly installed on the support platform 1. A cover 211 is fixedly installed on the top of the combustion furnace body 21. A heat conduction cavity 201 is provided in the combustion furnace body 21. By setting the heat conduction cavity 201, the heat in the combustion furnace body 21 can be recovered and used, thereby improving the overall efficiency of the production device. Two symmetrically distributed dividing strips 202 are fixedly installed in the heat conduction cavity 201, which divides the heat conduction cavity 201 into a left cavity and a right cavity. A first horizontal pipe 22 and a second horizontal pipe 221 are fixedly installed at the bottom and top of the left cavity, respectively. A third horizontal pipe 222 and a fourth horizontal pipe 223 are fixedly installed at the bottom and top of the right cavity, respectively. A U-shaped scraper 23 is provided on the inner side of the combustion furnace body 21. The U-shaped scraper 23 contacts the inner wall of the combustion furnace body 21. By setting the U-shaped scraper 23, the carbon black attached to the inner wall of the combustion furnace body 21 is scraped and cleaned. A rotating bracket 24 is rotatably installed in the middle of the cover 211. The rotating bracket 24 is fixedly installed on the U-shaped scraper 23. A first motor 215 is fixedly installed at the top of the cover 211. The drive end of the first motor 215 is fixedly installed on the top shaft end of the rotating bracket 24. By turning on the first motor 215, the rotating bracket 24 is driven to rotate the U-shaped scraper 23. The cover 211 is fixedly fitted with a first longitudinal pipe 212 and a second longitudinal pipe 213. The bottom ends of the first longitudinal pipe 212 and the second longitudinal pipe 213 extend into the combustion furnace body 21. Combustion nozzles 214 are fixedly installed at the bottom ends of the first longitudinal pipe 212 and the second longitudinal pipe 213. The rotating bracket 24 movably passes through the combustion nozzles 214. The first longitudinal pipe 212 is used to input acetylene gas, and the second longitudinal pipe 213 is used to input benzene gas, which is then combusted through the combustion nozzles 214.

[0037] A reflux chamber 231 is provided in the U-shaped scraper frame 23, and multiple evenly distributed grooves 232 are provided on the inner side of the U-shaped scraper frame 23. The multiple grooves 232 and the reflux chamber 231 are interconnected. By setting the reflux chamber 231 on the U-shaped scraper frame 23 and opening multiple grooves 232, the low-temperature exhaust gas is uniformly discharged into the combustion furnace body 21 for subsequent reflux, so as to uniformly reduce the temperature and further improve the processing efficiency of carbon black.

[0038] An inner sealing plate 233 is slidably installed on the side of the reflux chamber 231 near the drain trough 232. The inner sealing plate 233 has a through groove 234 corresponding to the drain trough 232. In the initial state, the through groove 234 and the drain trough 232 are misaligned. The inner sealing plate 233 blocks the drain trough 232 to prevent gas from overflowing through multiple drain troughs 232 during the reaction. A lifting rod 235 is fixedly installed on the side of the reflux chamber 231 near the inner sealing plate 233. The driving end of the lifting rod 235 is fixedly installed with the corresponding inner sealing plate 233. By opening the lifting rod 235, the inner sealing plate 233 is moved upward, and the through groove 234 and the drain trough 232 are connected, so that the subsequent reflux low temperature tail gas can be evenly discharged into the combustion furnace body 21 through the through groove 234 and the drain trough 232. A sealing rotating component 25 is fixedly installed at the bottom center of the U-shaped scraper frame 23. A return inlet pipe 251 is fixedly installed at the center of the sealing rotating component 25. The end of the return inlet pipe 251 away from the sealing rotating component 25 is fixedly snapped to the bottom of the combustion furnace body 21. The end of the return inlet pipe 251 away from the sealing rotating component 25 extends out of the outer side of the combustion furnace body 21.

[0039] The first combustion body 2 and the second combustion body 3 are symmetrically distributed. The second combustion body 3 is fixedly installed on the support platform 1 through the combustion furnace body 21. A No. 1 three-way pipe 5 is provided between the first horizontal pipe 22 in the first combustion body 2 and the second combustion body 3. A first valve 51 is fixedly installed at both ends of the No. 1 three-way pipe 5 and between the first horizontal pipe 22 in the first combustion body 2 and the second combustion body 3. An acetylene main inlet pipe 52 is fixedly installed at the end of the No. 1 three-way pipe 5. The acetylene main inlet pipe 52 is connected to the gas supply end of the external acetylene gas holder. When the first valve 51 at the position of the first combustion body 2 is opened, acetylene is introduced into the heat conduction cavity 201 in the first combustion body 2 through the corresponding second connecting pipe 8. The combustion furnace body 21 pre-treats the acetylene by heating it up to improve the cracking start-up efficiency of acetylene molecules and the formation rate of carbon black nuclei, so that carbon black is fully generated, thereby improving the overall production quality of carbon black. Similarly, when the first valve 51 at the position of the second combustion body 3 is opened, acetylene is introduced into the heat conduction cavity 201 in the second combustion body 3 through the corresponding second connecting pipe 8. The combustion furnace body 21 pre-treats the acetylene by heating, thereby realizing the recovery of heat in the combustion furnace body 21. A second connecting pipe 8 is provided between the second horizontal pipe 221 in the first combustion body 2 and the corresponding first vertical pipe 212 in the first combustion body 3 and the second horizontal pipe 221 in the second combustion body 3. A first pump 81 is fixedly installed on the second connecting pipe 8. A fourth valve 82 is fixedly installed between the second connecting pipe 8 and the corresponding first vertical pipe 212. When the first pump 81 and the fourth valve 82 at the position of the second combustion body 3 are opened, the acetylene that has been pretreated by heating enters the second combustion body 3 through the corresponding third connecting pipe 83 for combustion to produce carbon black. Similarly, when the first pump 81 and the fourth valve 82 at the first combustion body 2 are opened, the acetylene that has undergone preheating treatment enters the first combustion body 2 through the corresponding third connecting pipe 83 for combustion to produce carbon black.

[0040] First connecting pipes 6 are fixedly installed at the ends of the third horizontal pipes 222 in the first combustion body 2 and the second combustion body 3. A second three-way pipe 61 is provided between the two first connecting pipes 6. Second valves 62 are fixedly installed at both ends of the second three-way pipe 61 and between the first connecting pipes 6 on both sides. When the second valve 62 at the position of the first combustion body 2 is opened, benzene is introduced into the heat-conducting cavity 201 in the first combustion body 2, and the combustion furnace body 21 reheats the benzene. Similarly, the second valve 62 at the position of the second combustion body 3 is opened, and benzene is introduced into the heat conduction cavity 201 of the second combustion body 3, and the combustion furnace body 21 heats the benzene a second time. A third connecting pipe 83 is provided between the fourth horizontal pipe 223 in the first combustion body 2 and the corresponding second vertical pipe 213 in the second combustion body 3 and the second horizontal pipe 213 in the first combustion body 2. A terminal benzene heating system 831 and a second pump 832 are fixedly installed on the third connecting pipe 83. A fifth valve 833 is fixedly installed between the third connecting pipe 83 and the corresponding second vertical pipe 213. When the second pump 832 and the fifth valve 833 at the position of the second combustion body 3 are opened, the benzene that has been heated twice is rapidly heated and vaporized through the corresponding terminal benzene heating system 831 and enters the second combustion body 3 for combustion to produce carbon black. Similarly, the second pump 832 and the fifth valve 833 at the first combustion body 2 are turned on, and the benzene that has been heated twice is rapidly heated and vaporized through the corresponding end benzene heating system 831 and enters the first combustion body 2 for combustion to produce carbon black.

[0041] A return main pipe 7 is provided at the outer end of the return inlet pipe 251 in the first burner 2 and the second burner 3. Two return branch pipes are fixedly installed on the return main pipe 7. A third valve 71 is fixedly installed between the return branch pipes and the return inlet pipes 251 in the first burner 2 and the second burner 3. When the third valve 71 at the position of the first burner 2 is opened, the returned hydrogen gas is introduced into the return chamber 231 in the first burner 2 through the return main pipe 7 and the return inlet pipe 251 in the first burner 2. Similarly, when the third valve 71 at the position of the second burner 3 is opened, the returned hydrogen gas is introduced into the return chamber 231 in the second burner 3 through the return main pipe 7 and the return inlet pipe 251 in the second burner 3.

[0042] The conveying mechanism 4 includes a top spiral conveyor 41, and a bottom spiral conveyor 42 is provided below the end of the top spiral conveyor 41. The top spiral conveyor 41 includes a conveying outer cylinder 411, in which a spiral auger 412 is rotatably installed. A second motor 413 is fixedly installed at one end of the conveying outer cylinder 411. The drive end of the second motor 413 is fixedly installed with the shaft end of the spiral auger 412. When the second motor 413 is turned on, the spiral auger 412 is rotated to convey the discharged material. A clamping cavity 401 is provided in the conveying outer cylinder 411. An inlet pipe 402 is fixedly installed at the end of the clamping cavity 401, and an outlet pipe 403 is fixedly installed at the beginning of the clamping cavity 401. By setting the clamping cavity 401, it is convenient to recover heat in the conveying outer cylinder 411. The structure of the bottom spiral conveyor 42 is the same as that of the top spiral conveyor 41. Two discharge pipes 43 are fixedly installed at the top of the initial end of the outer conveying cylinder 411 in the top spiral conveyor 41. The top ends of the discharge pipes 43 are respectively fixedly installed with discharge valves 9 between the bottom ends of the combustion furnace body 21 in the first combustion body 2 and the second combustion body 3. When the discharge valve 9 at the position of the first combustion body 2 is opened, the carbon black and hydrogen produced in the first combustion body 2 are introduced into the outer conveying cylinder 411 in the top spiral conveyor 41 through the bottom of the combustion furnace body 21 and the corresponding discharge pipe 43 for conveying. Similarly, when the discharge valve 9 at the position of the second combustion body 3 is opened, the carbon black and hydrogen produced in the second combustion body 3 are introduced into the outer conveying cylinder 411 in the top spiral conveyor 41 through the bottom of the combustion furnace body 21 and the corresponding discharge pipe 43 for conveying. A connecting longitudinal pipe 44 is fixedly installed between the end of the outer conveying cylinder 411 in the top spiral conveyor 41 and the beginning of the outer conveying cylinder 411 in the bottom spiral conveyor 42. A discharge end pipe 441 is fixedly installed at the end of the outer conveying cylinder 411 in the bottom spiral conveyor 42. The carbon black and hydrogen conveyed by the top spiral conveyor 41 are introduced into the bottom spiral conveyor 42 through the connecting longitudinal pipe 44 for conveying, and then discharged through the outer conveying cylinder 411. A fourth connecting pipe 45 is fixedly installed between the end of the outlet pipe 403 in the bottom spiral conveyor 42 and the end of the inlet pipe 402 in the top spiral conveyor 41. A third pump 451 is fixedly installed on the fourth connecting pipe 45. A benzene inlet 46 is fixedly installed at the end of the inlet pipe 402 in the bottom spiral conveyor 42. A fifth connecting pipe 47 is fixedly installed between the end of the outlet pipe 403 in the top spiral conveyor 41 and the end of the No. 2 three-way pipe 61. A fourth pump 471 is fixedly installed on the fifth connecting pipe 47. When benzene is fed, the third pump 451 and the fourth pump 471 are turned on. The benzene is gradually introduced into the clamp cavity 401 in the bottom spiral conveyor 42 and the top spiral conveyor 41 through the benzene inlet 46. On the one hand, the conveyed carbon black and hydrogen are cooled, and on the other hand, the benzene is heated once to realize the heat recovery and utilization.

[0043] like Figure 15As shown, a continuous automated carbon black production system for preparing carbon black from acetylene and benzene includes a raw material input module, a reaction module, a carbon black separation and collection module, a tail gas treatment module, and an automated control system. The system is characterized in that the raw material input module, reaction module, carbon black separation and collection module, and tail gas treatment module are sequentially and sealedly connected via conveying pipelines; the automated control system is electrically connected to each module. The raw material input module includes an acetylene input module and a benzene input module. The acetylene input module and the benzene input module are respectively connected to the reaction module through metering and conveying pipelines, and can continuously supply acetylene and benzene raw materials according to a preset ratio. The carbon black separation and collection module is used to continuously separate the carbon black and tail gas mixture discharged from the reaction module, collect pure carbon black and transport it to subsequent storage or processing stages. The exhaust gas treatment module is used to purify the separated exhaust gas, separate and recover hydrogen from the exhaust gas, and some of the recovered hydrogen can be transported to the reaction module for low-temperature exhaust gas cooling to terminate the carbon black reaction. The remaining exhaust gas is discharged after purification to meet the standards.

[0044] Working principle: During carbon black production and processing, the acetylene main inlet pipe 52 is connected to the gas delivery end of the external acetylene gas holder. First, the first combustion body 2 or the second combustion body 3 is used for production and processing. The first combustion body 2 is used to produce carbon black. The first valve 51 at the position of the second combustion body 3 and the first pump 81 and the fourth valve 82 at the position of the first combustion body 2 are opened. Acetylene is introduced into the combustion nozzle 214 of the first combustion body 2 through the heat conduction cavity 201 in the second combustion body 3, the corresponding second connecting pipe 8, and the first longitudinal pipe 212 for combustion to produce carbon black. After combustion for a period of time, benzene gas is introduced into the first combustion body 2. The second valve 62 at the position of the second combustion body 3, the second pump 832 and the fifth valve 833 at the position of the first combustion body 2, and the terminal benzene heating system 831 are opened. Benzene liquid is gradually introduced into the clamping cavity 401 in the bottom spiral conveyor 42 and the top spiral conveyor 41 through the benzene liquid inlet 46. Subsequently, it enters the combustion nozzle 214 in the first combustion body 2 through the heat conduction cavity 201 in the second combustion body 3 and the corresponding third connecting pipe 83 for combustion. In the later stage of the reaction, the third valve 71 at the position of the first combustion body 2 is opened, and the returned hydrogen gas is introduced into the return chamber 231 of the first combustion body 2 through the return main pipe 7 and the return inlet pipe 251 in the first combustion body 2. Multiple discharge slots 232 are opened to uniformly discharge the returned low temperature tail gas into the combustion furnace body 21, terminate the carbon black reaction in the first combustion body 2, and increase the carbon black production output. Subsequently, the discharge valve 9 at the position of the first combustion body 2 is opened. The carbon black and hydrogen produced in the first combustion body 2 are introduced into the outer cylinder 411 of the top screw conveyor 41 through the bottom of the combustion furnace body 21 and the corresponding discharge pipe 43. The carbon black and hydrogen conveyed by the top screw conveyor 41 are introduced into the bottom screw conveyor 42 through the connecting longitudinal pipe 44. Then, they are discharged through the outer cylinder 411 and enter the crushing device to crush coarse particles and remove coke lumps. The pulverized carbon black is sent by a centrifugal induced draft fan through a slag remover to a two-stage cyclone separator connected in series. The collected carbon black is discharged through its respective storage hopper and airtight valve. The hydrogen-rich tail gas discharged from the volute of the two-stage cyclone separator is further collected by a pulse bag filter. Part of it is returned to the combustion furnace through a hydrogen return pipe, and the rest is directly discharged. The carbon black discharged from the airtight valve of the two-stage cyclone separator and the air valve of the pulse bag filter is sent to a screw conveyor and then compressed by a screw compressor. It is then packaged into products. The gas extracted by the screw compressor is discharged into the atmosphere by a water ring vacuum pump. In this process, while terminating the carbon black reaction in the later stage of the first combustion body 2, the supply of acetylene and benzene to the first combustion body 2 is stopped, and the supply of acetylene and benzene to the second combustion body 3 is stopped, thus forming a continuous carbon black production and improving efficiency. At this time, the first valve 51 at the first combustion body 2 position and the first pump 81 and the fourth valve 82 at the second combustion body 3 position are opened simultaneously. Acetylene is introduced into the heat conduction cavity 201 in the first combustion body 2 through the corresponding second connecting pipe 8. The combustion furnace body 21 pre-treats the acetylene by raising the temperature to improve the cracking start efficiency of acetylene molecules and the formation rate of carbon black nuclei, so that carbon black is fully generated. The acetylene that has undergone preheating and treatment enters the second combustion body 3 through the corresponding third connecting pipe 83 for combustion to produce carbon black. Simultaneously, when benzene raw material needs to be added to the second combustion body 3, the second valve 62 at the position of the first combustion body 2 is opened, and the second pump 832 and the fifth valve 833 at the position of the second combustion body 3, as well as the terminal benzene heating system 831, are opened. Benzene liquid is gradually introduced into the cavity 401 of the bottom screw conveyor 42 and the top screw conveyor 41 through the benzene liquid inlet 46. On the one hand, the conveyed carbon black and hydrogen are cooled, and on the other hand, the benzene liquid is heated once. The benzene liquid after the first heating is introduced into the heat conduction cavity 201 of the first combustion body 2. The combustion furnace body 21 heats the benzene a second time. The benzene after the second heating is rapidly heated and vaporized through the corresponding end benzene heating system 831 and enters the second combustion body 3 for combustion to produce carbon black. Since the benzene liquid is preheated twice, the energy consumption of the end benzene heating system 831 can be reduced, and the overall effect of the device can be further improved. When the reaction is in the second combustion body 3, the third valve 71 at the position of the second combustion body 3 is opened, and the returned hydrogen gas is introduced into the return chamber 231 of the second combustion body 3 through the return main pipe 7 and the return inlet pipe 251 in the second combustion body 3. Multiple discharge slots 232 are opened to uniformly discharge the returned low temperature tail gas into the combustion furnace body 21, terminate the carbon black reaction in the second combustion body 3, and increase the carbon black production output. Subsequently, the discharge valve 9 at the position of the second combustion body 3 is opened. The carbon black and hydrogen produced in the second combustion body 3 are introduced into the outer cylinder 411 of the top screw conveyor 41 through the bottom of the combustion furnace body 21 and the corresponding discharge pipe 43. The carbon black and hydrogen conveyed by the top screw conveyor 41 are introduced into the bottom screw conveyor 42 through the connecting longitudinal pipe 44. Then, they are discharged through the outer cylinder 411 and enter the crushing device. In this process, while terminating the carbon black reaction in the second combustion body 3, the supply of acetylene and benzene to the second combustion body 3 is stopped, and acetylene and benzene are supplied to the first combustion body 2 after the material has been discharged to carry out continuous carbon black production.

[0045] 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 continuous automated carbon black production device, comprising a support platform (1), characterized in that: The first burner (2) and the second burner (3) are fixedly installed on the support platform (1), and the bottom ends of the first burner (2) and the second burner (3) are fixedly installed with a conveying mechanism (4). The first combustion body (2) includes a combustion furnace body (21), which is fixedly installed on a support platform (1). A cover (211) is fixedly installed on the top of the combustion furnace body (21). A heat-conducting cavity (201) is provided in the combustion furnace body (21). Two symmetrically distributed longitudinal dividing strips (202) are fixedly installed in the heat-conducting cavity (201). The two longitudinal dividing strips (202) divide the heat-conducting cavity (201) into a left cavity and a right cavity. A first horizontal tube (22) and a second horizontal tube (221) are fixedly installed at the bottom and top of the left cavity, respectively. A third horizontal tube (222) and a fourth horizontal tube (223) are fixedly installed at the bottom and top of the right cavity, respectively. The combustion furnace body (21) is provided with a U-shaped scraper frame (23) on the inner side. The U-shaped scraper frame (23) is in contact with the inner wall of the combustion furnace body (21). A rotating bracket (24) is rotatably installed in the middle of the cover (211). The rotating bracket (24) is fixedly installed on the U-shaped scraper frame (23). A first longitudinal tube (212) and a second longitudinal tube (213) are fixedly clamped on the cover (211). The bottom ends of the first longitudinal tube (212) and the second longitudinal tube (213) extend into the combustion furnace body (21). A combustion nozzle (214) is fixedly installed at the bottom ends of the first longitudinal tube (212) and the second longitudinal tube (213). The rotating bracket (24) movably passes through the combustion nozzle (214).

2. The continuous automated carbon black production device according to claim 1, characterized in that: The U-shaped scraper frame (23) has a reflux cavity (231) and a plurality of evenly distributed grooves (232) are provided on the inner side of the U-shaped scraper frame (23). The grooves (232) and the reflux cavity (231) are interconnected. An inner sealing plate (233) is slidably installed on the side of the reflux cavity (231) near the grooves (232). A through groove (234) corresponding to the grooves (232) is provided on the inner sealing plate (233). A lifting rod (235) is fixedly installed on the side of the reflux cavity (231) near the inner sealing plate (233). The driving end of the lifting rod (235) is fixedly installed on the corresponding inner sealing plate (233).

3. The continuous automated carbon black production device according to claim 2, characterized in that: A sealing rotating component (25) is fixedly installed at the bottom center of the U-shaped scraper frame (23). A return inlet pipe (251) is fixedly installed at the center of the sealing rotating component (25). One end of the return inlet pipe (251) away from the sealing rotating component (25) is fixedly snapped into the bottom of the combustion furnace body (21). The other end of the return inlet pipe (251) away from the sealing rotating component (25) extends out of the outside of the combustion furnace body (21).

4. The continuous automated carbon black production device according to claim 3, characterized in that: The top of the cover (211) is fixedly mounted with a first motor (215), and the drive end of the first motor (215) and the top shaft end of the rotating bracket (24) are fixedly mounted.

5. A continuous automated carbon black production device according to claim 4, characterized in that: The first burner (2) and the second burner (3) are symmetrically distributed. The second burner (3) is fixedly installed on the support platform (1) through the combustion furnace body (21). A No. 1 tee pipe (5) is provided between the first horizontal pipe (22) of the first burner (2) and the second burner (3). A first valve (51) is fixedly installed at both ends of the No. 1 tee pipe (5) and between the first horizontal pipe (22) of the first burner (2) and the second burner (3). An acetylene main inlet pipe (52) is fixedly installed at the end of the No. 1 tee pipe (5).

6. The continuous automated carbon black production apparatus according to claim 5, characterized in that: The first connecting pipe (6) is fixedly installed at the end of the third horizontal pipe (222) in the first combustion body (2) and the second combustion body (3). A second three-way pipe (61) is provided between the two first connecting pipes (6). A second valve (62) is fixedly installed between the two ends of the second three-way pipe (61) and between the two first connecting pipes (6) on both sides.

7. A continuous automated carbon black production device according to claim 5, characterized in that: The first burner (2) and the second burner (3) have a return main pipe (7) at the outer end of the return inlet pipe (251). Two return branch pipes are fixedly installed on the return main pipe (7). A third valve (71) is fixedly installed between the return branch pipe and the return inlet pipe (251) of the first burner (2) and the second burner (3).

8. A continuous automated carbon black production device according to claim 5, characterized in that: A second connecting pipe (8) is provided between the second horizontal pipe (221) in the first combustion body (2) and the first vertical pipe (212) in the corresponding second combustion body (3) and the first vertical pipe (212) in the first combustion body (2). A first pump (81) is fixedly installed on the second connecting pipe (8). A fourth valve (82) is fixedly installed between the second connecting pipe (8) and the corresponding first vertical pipe (212). A third connecting pipe (83) is provided between the fourth horizontal pipe (223) in the first combustion body (2) and the second vertical pipe (213) in the corresponding second combustion body (3) and the first combustion body (2). A terminal benzene heating system (831) and a second pump (832) are fixedly installed on the third connecting pipe (83). A fifth valve (833) is fixedly installed between the third connecting pipe (83) and the corresponding second vertical pipe (213).

9. A continuous automated carbon black production device according to claim 6, characterized in that: The conveying mechanism (4) includes a top spiral conveyor (41), and a bottom spiral conveyor (42) is provided below the end of the top spiral conveyor (41). The top spiral conveyor (41) includes a conveying outer cylinder (411), in which a spiral auger (412) is rotatably installed. A second motor (413) is fixedly installed at one end of the conveying outer cylinder (411). The drive end of the second motor (413) and the shaft end of the spiral auger (412) are fixedly installed. A clamping cavity (401) is opened in the conveying outer cylinder (411). An inlet pipe (402) is fixedly installed at the end of the clamping cavity (401), and an outlet pipe (403) is fixedly installed at the beginning of the clamping cavity (401). The structure of the bottom spiral conveyor (42) is the same as that of the top spiral conveyor (41). Two discharge pipes (43) are fixedly installed at the top of the initial end of the outer conveyor cylinder (411) in the top spiral conveyor (41). The top of the discharge pipes (43) are fixedly installed with discharge valves (9) between the top of the discharge pipes (43) and the bottom of the combustion furnace body (21) in the first combustion body (2) and the second combustion body (3). A connecting longitudinal pipe (44) is fixedly installed between the end of the outer conveying cylinder (411) in the top spiral conveyor (41) and the beginning of the outer conveying cylinder (411) in the bottom spiral conveyor (42), and a discharge end pipe (441) is fixedly installed at the end of the outer conveying cylinder (411) in the bottom spiral conveyor (42). A fourth connecting pipe (45) is fixedly installed between the end of the outlet pipe (403) in the bottom spiral conveyor (42) and the end of the inlet pipe (402) in the top spiral conveyor (41). A third pump (451) is fixedly installed on the fourth connecting pipe (45). A benzene inlet (46) is fixedly installed at the end of the inlet pipe (402) in the bottom spiral conveyor (42). A fifth connecting pipe (47) is fixedly installed between the end of the outlet pipe (403) in the top spiral conveyor (41) and the end of the second tee pipe (61). A fourth pump (471) is fixedly installed on the fifth connecting pipe (47).

10. A continuous automated carbon black production system for preparing carbon black from acetylene and benzene, comprising a raw material input module, a reaction module, a carbon black separation and collection module, a tail gas treatment module, and an automated control system, characterized in that: The raw material input module, reaction module, carbon black separation and collection module, and tail gas treatment module are sequentially and sealedly connected through conveying pipelines; the automated control system is electrically connected to each module. The raw material input module includes an acetylene input module and a benzene input module. The acetylene input module and the benzene input module are respectively connected to the reaction module through metering and conveying pipelines, and can continuously supply acetylene and benzene raw materials according to a preset ratio. The carbon black separation and collection module is used to continuously separate the carbon black and tail gas mixture discharged from the reaction module, collect pure carbon black and transport it to subsequent storage or processing stages. The exhaust gas treatment module is used to purify the separated exhaust gas, separate and recover hydrogen from the exhaust gas, and some of the recovered hydrogen can be transported to the reaction module for low-temperature exhaust gas cooling to terminate the carbon black reaction. The remaining exhaust gas is discharged after purification to meet the standards.

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