CN210215213U - Novel hard carbon black reaction furnace - Google Patents
Novel hard carbon black reaction furnace Download PDFInfo
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- CN210215213U CN210215213U CN201921104399.2U CN201921104399U CN210215213U CN 210215213 U CN210215213 U CN 210215213U CN 201921104399 U CN201921104399 U CN 201921104399U CN 210215213 U CN210215213 U CN 210215213U
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Abstract
The utility model discloses a novel hard carbon black reacting furnace, which comprises a raw oil storage tank and a furnace body, wherein the furnace body comprises a combustion section, a throat section, a reaction section and a quenching section which are concentrically arranged, an upper air pipe and a lower air pipe of an air inlet pipe are arranged in the combustion section, an air inlet main pipe communicated with the upper air pipe and the lower air pipe is arranged outside the combustion section, and the end part of the air inlet main pipe is connected with an air preheater; at least 2 raw oil spray guns are obliquely arranged on the throat section and are communicated with a raw oil storage tank through a raw oil preheater; the end connection of quench zone has the buffer segment, and the inside staggered arrangement of buffer segment has the polylith striker plate, and the end connection of buffer segment has waste heat recoverer, and waste heat recoverer passes through the pipeline and links to each other with raw oil preheater and air heater respectively. The device has reasonable structural design and flexible and convenient use, can effectively improve the heating efficiency of the reaction furnace, achieves the aim of improving the product quality and the yield, and can efficiently recycle the waste heat of the flue gas.
Description
Technical Field
The utility model belongs to the technical field of chemical production equipment, concretely relates to novel hard carbon black reacting furnace.
Background
Carbon black is an important chemical raw material produced by incomplete combustion of various organic substances, is used as a reinforcing agent of the rubber industry, a coloring agent or a toner of a sizing material, and is widely applied to various fields of printing ink, coating, tanning, chemical fiber, metallurgy, electronics, photosensitive materials, black agricultural films and packaging materials. A carbon black reaction furnace is a key device for producing carbon black, at present, the reaction furnace mainly comprises a combustion section, a throat end, a reaction section and a quenching section, the main function of the combustion section is to provide necessary heat energy for carbon black reaction, raw oil enters the reaction furnace and is injected from the throat of the reaction furnace by a raw material gun and a nozzle, the injected raw oil is contacted and mixed with high-temperature high-speed airflow from the combustion section, the raw oil is quickly gasified and cracked to generate carbon black, the injected raw oil is ensured to be fully gasified, the contact surface with hot airflow is fully large, which is a key technology in carbon black manufacturing The tail gas waste heat recycling and production capacity have great defects, especially during tail gas waste heat recycling operation, due to unreasonable structural design, when fuel oil and air are preheated by using flue gas waste heat, the preheated temperature is not constant, the combustion temperature and the combustion efficiency of a reaction section can be seriously influenced, and the utilization rate of heat energy is low; meanwhile, the yield of the carbon black produced by the reaction furnace is small, the utilization rate is low, the quality of the produced carbon black is poor, and the surface is rough. Therefore, it is objectively needed to develop a novel hard carbon black reaction furnace which has a simple structure, is flexible and convenient to use, is environment-friendly and energy-saving, and can greatly improve the production capacity and the heat energy utilization rate of a single furnace.
Disclosure of Invention
An object of the utility model is to provide a simple structure, use nimble convenient, environmental protection and energy saving, can be by a wide margin improve the productivity and the novel hard carbon black reacting furnace of heat utilization ratio of single stove.
The utility model aims at realizing the method, the furnace comprises a raw oil storage tank and a furnace body, the furnace body comprises a combustion section, a throat section, a reaction section and a quench section which are concentrically arranged, an intake pipe is horizontally arranged at the middle part in the combustion section, a pressurizing air pump is arranged on the intake pipe, an upper air pipe is horizontally arranged at the upper part in the combustion section, a plurality of air nozzles for downwards spraying air are arranged at the bottom of the upper air pipe, a lower air pipe is horizontally arranged at the lower part in the combustion section, a plurality of air nozzles for upwards spraying air are arranged at the top of the lower air pipe, an air inlet main pipe communicated with the upper air pipe and the lower air pipe is arranged outside the combustion section, an air feeder is arranged on the air main; at least 2 raw oil spray guns are obliquely arranged on the throat section, the raw oil spray guns are uniformly arranged along the circumferential direction of the throat section, the raw oil spray guns are communicated with a raw oil preheater through pipelines, and the raw oil preheater is communicated with a raw oil storage tank; a plurality of water inlet pipes are horizontally arranged on the outer wall of the quenching section, and a plurality of high-pressure spray pipes penetrating through the quenching section are arranged on each water inlet pipe; the end connection of quench zone has the buffer segment, and the inside staggered arrangement of buffer segment has the polylith striker plate, and the bottom intercommunication of buffer segment has the receiving hopper, and the tip of buffer segment is provided with the pipe of discharging fume, and the end connection of the pipe of discharging fume has waste heat recoverer, and waste heat recoverer passes through the pipeline and links to each other with raw oil preheater and air heater respectively.
Further, air heater includes casing, air intlet and air outlet, the cavity is provided with many rings of ring canals from the bottom up in the casing, through many straight tube intercommunications between the upper and lower adjacent two ring canals, air intlet and the ring canal intercommunication of the superiors, the one end of air outlet and the ring canal intercommunication of the lower floor, the other end is responsible for the intercommunication with the air inlet, the bottom of casing is provided with the flue gas import, flue gas import and waste heat recovery ware intercommunication, the upper portion of casing is provided with the exhanst gas outlet.
Preferably, the inner wall of the shell is provided with a heat insulation layer.
Furthermore, the air nozzles on the upper air pipe and the lower air pipe are arranged in a staggered way,
furthermore, the air inlet direction of the raw oil spray gun is opposite to the air flow direction of the combustion section.
Furthermore, each surface of the material baffle plate is provided with a plurality of triangular bulges.
The utility model discloses the beneficial effect who produces is: firstly, air is uniformly introduced into the combustion section through the upper air pipe and the lower air pipe, the introduced air can be well in full contact with coal gas entering through the inlet pipe, so that the coal gas can be uniformly and fully combusted, high-temperature hot air entering the reaction section can be stable and constant, sufficient heat is provided for the full combustion of fuel oil, and good basic conditions are provided for improving the combustion quality and combustion conditions of carbon black; secondly, the combustion section is fed from multiple angles through the arranged raw material spray guns which feed materials obliquely, so that the carbonaceous materials in the combustion section are distributed more uniformly and combusted more fully; thirdly, water cooling is carried out in a plurality of directions of the quenching section, on one hand, the contact area of water and high-temperature carbon black smoke is enlarged, the cooling effect is further enhanced, on the other hand, the cooling time is shortened, and the occurrence of carbon black side reaction is prevented, so that the combustion quality of the carbon black is ensured; fifthly, the arranged buffer section and the material baffle can be used for preprocessing and collecting the carbon black smoke, so that the collecting pressure of a downstream carbon black collecting device is reduced; fifthly, the waste heat recoverer can recover waste heat of carbon black flue gas, the waste heat can be used for preheating raw oil and air, the recovery efficiency of tail gas waste heat is greatly improved, and the cost is saved. To sum up, the structural design of this device is reasonable, it is nimble convenient to use, utilize on line air heater and raw oil preheater reasonable send into high temperature air and raw oil into the combustion section in and burn, not only can the heating efficiency of effectual improvement reacting furnace, reach the purpose that improves product quality and yield, but also can the efficient retrieve the flue gas waste heat and recycle, under the prerequisite that can reach the reduction heat energy loss, the operating efficiency of improvement reacting furnace that can also be further has better popularization and utilization value.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
in the figure: 1-air inlet main pipe, 2-air inlet pipe, 3-pressurized air pump, 4-air blower, 5-air inlet pipe, 6-air nozzle, 7-combustion section, 8-air preheater, 81-air outlet, 82-flue gas outlet, 83-air inlet, 84-ring pipe, 85-straight pipe, 86-flue gas inlet, 9-throat section, 10-raw oil spray gun, 11-reaction section, 12-quenching section, 13-water inlet pipe, 14-raw oil preheater, 15-high pressure spray pipe, 16-buffer section, 17-raw oil storage tank, 18-waste heat recoverer, 19-smoke exhaust pipe, 20-bulge, 21-striker plate, 22-receiving hopper, 23-air outlet pipe.
Detailed Description
The following further describes the present invention with reference to the attached drawings, but the present invention is not limited in any way, and any changes or improvements based on the teaching of the present invention all belong to the protection scope of the present invention.
As shown in figure 1, the utility model comprises a raw oil storage tank 17 and a furnace body, the raw oil storage tank 17 is used for storing the raw oil required by the combustion of carbon black, the furnace body comprises a combustion section 7, a throat section 9, a reaction section 11 and a quench section 12 which are concentrically arranged, an air inlet pipe 2 is horizontally arranged in the middle of the combustion section 7, a pressurizing air pump 3 is arranged on the air inlet pipe 2, the pressurizing air pump 3 is a pressurizing pump for conveying coke oven gas in the existing market and can be used for directly purchasing finished products in the market, an upper air pipe 5 is horizontally arranged in the combustion section 7, a plurality of air nozzles 6 for downwards spraying air are arranged at the bottom of the upper air pipe 5, a lower air pipe 23 is horizontally arranged in the combustion section 7, a plurality of air nozzles 6 for upwards spraying air are arranged at the top of the lower air pipe 23, an air inlet main pipe 1 communicated with the upper air pipe 5 and the lower air pipe, the air inlet main pipe 1 is provided with an air feeder 4, the air feeder 4 is a fan used in the existing market, the end part of the air inlet main pipe 1 is connected with an air preheater 8 through a pipeline, and the air preheater 8 is used for preheating air to 800 ℃; the primary oil preheating device is characterized in that at least 2 raw oil spray guns 10 are obliquely arranged on the throat section 9, the raw oil spray guns 10 are uniformly arranged along the circumferential direction of the throat section 9, the raw oil spray guns 10 are communicated with a raw oil preheater 14 through pipelines, the raw oil preheater 14 is communicated with a raw oil storage tank 17, and the raw oil preheater 14 is used for preheating raw oil to 200 ℃; a plurality of water inlet pipes 13 are horizontally arranged on the outer wall of the quenching section 12, and a plurality of high-pressure spray pipes 15 penetrating through the quenching section 12 are arranged on each water inlet pipe 13; the end part of the quenching section 12 is connected with a buffer section 16, a plurality of material baffle plates 21 are arranged inside the buffer section 16 in a staggered mode, the bottom of the buffer section 16 is communicated with a material receiving hopper 22, the end part of the buffer section 16 is provided with a smoke exhaust pipe 19, the end part of the smoke exhaust pipe 19 is connected with a waste heat recoverer 18, the waste heat recoverer 18 is respectively connected with the raw oil preheater 14 and the air preheater 8 through pipelines, one part of waste heat recovered by the waste heat recoverer 18 is used for the air preheater 8, and the other part of waste heat recovered by the waste heat recoverer 18 is.
The utility model discloses a working process is: when the device works, air is preheated to 800 ℃ by an air preheater 8 and then enters an air inlet main pipe 1, under the action of an air blower 4, high-temperature air is uniformly introduced into a combustion section 7 through air nozzles 6 on an upper air pipe 5 and a lower air pipe 23, then coke oven gas pressurized by a pressurizing air pump 3 is introduced into the combustion section 7 through an air inlet pipe 2, then raw oil preheated to 800 ℃ by a raw oil preheater 14 is sprayed into the combustion section 7 from a throat pipe section 9 by a raw oil spray gun 10, the raw oil, the coal gas and the air are mixed and combusted in the combustion section 7, as part of raw materials are not fully combusted in the combustion section 7, a reaction section 11 is arranged between the throat pipe section 9 and a quenching section 12, the raw materials which are not completely combusted enter the reaction section 11 again for secondary combustion reaction, after secondary combustion, flue gas enters a quenching section 12, under the spraying action of a high-pressure spray pipe 15, the flue gas can be cooled and finally brought into the buffer section 16, part of carbon black can be retained and fall to the bottom of the buffer section 16 and enter the receiving hopper 22 under the action of the material baffle 21, the flue gas discharged from the smoke discharge pipe 19 enters the waste heat recoverer 18, directly enters a subsequent flue gas treatment system after exchanging heat with clean air in the waste heat recoverer 18, one part of the clean hot air absorbing heat enters the shell side of the raw oil preheater 8, after exchanging heat with the raw oil preheater 8, the cooled clean hot air is directly emptied, the raw oil absorbing heat directly enters the combustion section 7 through the raw oil spray gun 10, the other part of the clean hot air absorbing heat enters the air preheater 8, the air entering the air preheater 8 is preheated, and the air absorbing heat is under the action of the air feeder 4, the air enters the upper air pipe 5 and the lower air pipe 23 through the main air inlet pipe 1 in sequence, the temperature of the air preheated by the air preheater 8 may not reach 800 ℃, and in order to ensure the combustion efficiency, an air heater is required to be arranged on a pipeline between the main air inlet pipe 1 and the air preheater 8, and the air heater can be an electric heater.
In order to further improve the heat exchange efficiency of the air preheater, the air preheater 8 comprises a shell, an air inlet 83 and an air outlet 81, wherein a plurality of circles of circular pipes 84 are arranged in the shell in a hollow manner from bottom to top, the two adjacent circular pipes 84 are communicated with each other through a plurality of straight pipes 85, the air inlet 83 is communicated with the circular pipe 84 at the uppermost layer, one end of the air outlet 81 is communicated with the circular pipe 84 at the lowermost layer, the other end of the air outlet is communicated with the air inlet main pipe 1, the bottom of the shell is provided with a flue gas inlet 86, the flue gas inlet 86 is communicated with the waste heat recoverer 18, the upper part of the shell is provided with the flue gas outlet 82, the flue gas inlet 86 entering the bottom of the air preheater 8 from the waste heat recoverer 18 enters the circular pipe 84 and then slowly rises to exchange heat with the air entering from, and moreover, the utilization rate of heat energy can be greatly improved, and in order to avoid the dissipation of the heat energy, preferably, a heat insulation layer is arranged on the inner wall of the shell.
Furthermore, the air nozzles 6 on the upper air pipe 5 and the lower air pipe 23 are arranged in a staggered mode, so that the flow speed of combustion airflow can be accelerated, and the combustion efficiency is improved.
In order to further ensure that the raw oil and the coke oven gas are fully combusted, the air inlet direction of the raw oil spray gun 10 is opposite to the air flow direction of the combustion section 7.
Furthermore, each face of the striker plate 21 is provided with a plurality of triangular protrusions 20, the flow speed of the flue gas can be further reduced through the protrusions 20, and carbon black in the flue gas is retained in the buffer section 16 as far as possible.
Claims (6)
1. The utility model provides a novel hard carbon black reacting furnace, includes raw oil storage tank (17) and furnace body, the furnace body is including burning section (7), choke section (9), reaction section (11) and quench zone (12) that set up with one heart, its characterized in that: the air inlet device is characterized in that an air inlet pipe (2) is horizontally arranged in the middle of the combustion section (7), a compression air pump (3) is arranged on the air inlet pipe (2), an upper air pipe (5) is horizontally arranged above the combustion section (7), a plurality of downward air injection air nozzles (6) are arranged at the bottom of the upper air pipe (5), a lower air pipe (23) is horizontally arranged below the combustion section (7), a plurality of upward air injection air nozzles (6) are arranged at the top of the lower air pipe (23), an air inlet main pipe (1) communicated with the upper air pipe (5) and the lower air pipe (23) is arranged outside the combustion section (7), an air feeder (4) is arranged on the air inlet main pipe (1), and the end part of the air inlet main pipe (1) is connected with an air preheater (8) through; at least 2 raw oil spray guns (10) are obliquely arranged on the throat pipe section (9), the raw oil spray guns (10) are uniformly arranged along the circumferential direction of the throat pipe section (9), the raw oil spray guns (10) are communicated with a raw oil preheater (14) through pipelines, and the raw oil preheater (14) is communicated with a raw oil storage tank (17); a plurality of water inlet pipes (13) are horizontally arranged on the outer wall of the quenching section (12), and a plurality of high-pressure spray pipes (15) penetrating through the quenching section (12) are arranged on each water inlet pipe (13); the end connection of quench zone (12) has buffer segment (16), the inside staggered arrangement of buffer segment (16) has polylith striker plate (21), the bottom intercommunication of buffer segment (16) has receiving hopper (22), the tip of buffer segment (16) is provided with smoke exhaust pipe (19), the end connection of smoke exhaust pipe (19) has waste heat recoverer (18), waste heat recoverer (18) link to each other with raw oil preheater (14) and air preheater (8) respectively through the pipeline.
2. The new hard carbon black reaction furnace according to claim 1, characterized in that: air heater (8) include casing, air intlet (83) and air outlet (81), the cavity is provided with many rings of ring pipes (84) from the bottom up in the casing, communicates through many straight tubes (85) between two adjacent ring pipes (84) from top to bottom, air intlet (83) and ring pipe (84) of the superiors communicate, the one end and the ring pipe (84) of the lower floor of air outlet (81) communicate, and the other end and air inlet are responsible for (1) intercommunication, the bottom of casing is provided with flue gas inlet (86), flue gas inlet (86) and waste heat recoverer (18) intercommunication, the upper portion of casing is provided with exhanst gas outlet (82).
3. The new hard carbon black reaction furnace according to claim 2, characterized in that: and a heat insulation layer is arranged on the inner wall of the shell.
4. The new hard carbon black reaction furnace according to claim 1, characterized in that: and the air nozzles (6) on the upper air pipe (5) and the lower air pipe (23) are arranged in a staggered manner.
5. The new hard carbon black reaction furnace according to claim 1, characterized in that: the air inlet direction of the raw oil spray gun (10) is opposite to the air flow direction of the combustion section (7).
6. The new hard carbon black reaction furnace according to claim 1, characterized in that: each surface of the material baffle plate (21) is provided with a plurality of triangular bulges (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921104399.2U CN210215213U (en) | 2019-07-15 | 2019-07-15 | Novel hard carbon black reaction furnace |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921104399.2U CN210215213U (en) | 2019-07-15 | 2019-07-15 | Novel hard carbon black reaction furnace |
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| CN210215213U true CN210215213U (en) | 2020-03-31 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115960477A (en) * | 2023-03-13 | 2023-04-14 | 烁元新材料(东营)股份有限公司 | Carbon black reaction furnace and use method thereof |
| CN117249682A (en) * | 2023-11-15 | 2023-12-19 | 山东耐斯特炭黑有限公司 | Carbon black reaction furnace |
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2019
- 2019-07-15 CN CN201921104399.2U patent/CN210215213U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115960477A (en) * | 2023-03-13 | 2023-04-14 | 烁元新材料(东营)股份有限公司 | Carbon black reaction furnace and use method thereof |
| CN117249682A (en) * | 2023-11-15 | 2023-12-19 | 山东耐斯特炭黑有限公司 | Carbon black reaction furnace |
| CN117249682B (en) * | 2023-11-15 | 2024-01-09 | 山东耐斯特炭黑有限公司 | Carbon black reaction furnace |
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