CN210711361U - Hard carbon black reaction furnace - Google Patents
Hard carbon black reaction furnace Download PDFInfo
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- CN210711361U CN210711361U CN201921461287.2U CN201921461287U CN210711361U CN 210711361 U CN210711361 U CN 210711361U CN 201921461287 U CN201921461287 U CN 201921461287U CN 210711361 U CN210711361 U CN 210711361U
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- 239000006229 carbon black Substances 0.000 title claims abstract description 81
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 74
- 229910021385 hard carbon Inorganic materials 0.000 title claims abstract description 19
- 238000002485 combustion reaction Methods 0.000 claims abstract description 31
- 239000002994 raw material Substances 0.000 claims abstract description 31
- 238000010791 quenching Methods 0.000 claims abstract description 22
- 230000000171 quenching effect Effects 0.000 claims abstract description 19
- 239000000446 fuel Substances 0.000 claims abstract description 18
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000003546 flue gas Substances 0.000 claims abstract description 11
- 230000014759 maintenance of location Effects 0.000 claims description 12
- 230000008602 contraction Effects 0.000 claims description 6
- 229910052593 corundum Inorganic materials 0.000 claims description 6
- 239000010431 corundum Substances 0.000 claims description 6
- 239000002737 fuel gas Substances 0.000 claims description 5
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 230000009970 fire resistant effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 20
- 239000000779 smoke Substances 0.000 abstract description 12
- 239000002245 particle Substances 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000010008 shearing Methods 0.000 abstract description 5
- 239000013078 crystal Substances 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract description 4
- 238000005336 cracking Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 239000003034 coal gas Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 2
- 239000011280 coal tar Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model discloses a hard carbon black reaction furnace, which comprises a burner, a combustion chamber, a throat section, a reaction termination quenching section and a carbon black smoke staying section which are connected in sequence; the length of the first straight pipe section of the combustion chamber is reasonably designed, so that the fuel is fully combusted, and the fuel is saved; the throat section is provided with double rows of raw material oil guns, so that the raw materials are sprayed into the reaction furnace to be atomized better; the reaction section adopts the inclined surface to reduce the diameter, so that the carbon black flue gas flow in the reaction is accelerated again, the shearing force and the cracking degree are increased, the reaction is uniform and violent, and the produced carbon black particles are more uniform; the reaction termination quenching section is combined with the reaction section for re-expansion, so that the structure degree of the carbon black before the reaction termination is higher, the collision of crystal nuclei is more violent, a sufficient water vapor and carbon black smoke mixing space is provided, and the reaction can be terminated quickly. The utility model has the advantages of many kinds of production and processing carbon black series, high productivity, stable quality, low consumption, simple operation, high efficiency and the like, and the production capacity of the carbon black can reach 6W ton/year.
Description
Technical Field
The utility model relates to a carbon black reacting furnace especially relates to a hard carbon black reacting furnace.
Background
With the continuous progress and development of modern industry, the domestic carbon black industry is continuously strong, and in order to meet the domestic increasing requirements of rubber and tires, the carbon black production capacity is greatly increased. While there are a variety of processes for obtaining carbon black, the most common is the furnace carbon black production process, where the design of the carbon black reactor is the core of the carbon black production. At present, a reaction furnace for producing 4 million tons of hard carbon black annually is widely used in China, and has the following defects: the non-ideal complete combustion condition of the combustion chamber results in high production consumption, non-uniform carbon black particles, low carbon black production capacity and single type of carbon black.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a hard carbon black reacting furnace that production consumption is low, productivity is high, product quality is good, aims at overcoming the carbon black particle inhomogeneous of production that exists in the current hard carbon black production, and the type of production carbon black is single, and productivity is low, manufacturing cost is high and production consumption height etc. defect.
In order to achieve the purpose of the utility model, the technical proposal is as follows:
a hard carbon black reaction furnace comprises a burner, a combustion chamber, a throat section, a reaction termination quenching section and a carbon black smoke retention section which are connected in sequence;
the burner is provided with an air inlet in the radial direction, a flow guide device is arranged in the burner and comprises a flow guide plate, the flow guide plate is provided with flow guide holes, and the flow guide plate can guide preheated air entering the reaction furnace in the radial direction and then axially enter the combustion chamber;
the combustor comprises a first straight pipe section and a first horn section which are connected in sequence, wherein the length ratio of the first straight pipe section to the first horn section is 0.7: 1, the first straight pipe section is designed to be longer, the combustion space is increased, the combustion is more sufficient, the taper of the first horn section is 6.0-7.0 degrees, and a fuel gas inlet is formed at the joint of the first straight pipe section of the combustion chamber and a burner;
the choke section is including the second loudspeaker section and the second straight tube section that connect gradually, the second loudspeaker section is connected with the first loudspeaker section in fuel room, and from the first straight tube section of combustion chamber to the second straight tube section of choke section, the fluid of burning is continuously accelerated along first loudspeaker section, second loudspeaker section, and according to the principle of laval nozzle, the contraction ratio of second straight tube section cross-sectional area and first straight tube section cross-sectional area is 1: 7-9, the second horn section is provided with front row raw material oil guns, the second straight pipe section is provided with rear row raw material oil guns, the number of the front row raw material oil guns is 6, and the number of the rear row raw material oil guns is 10;
the reaction section comprises an inclined plane reducing section and a third straight pipe section which are sequentially connected, the caliber of a contraction end of the inclined plane reducing section is consistent with the inner diameter of the second straight pipe section of the throat section, the reducing angle of the inclined plane reducing section is 15-20 degrees, and the expansion ratio of the cross section area of the third straight pipe section to the cross section area of the second straight pipe section is 3-5: 1, after entering a reaction section, the carbon black smoke is subjected to accelerated cracking again through an inclined plane reducing section, so that the shearing force and the reaction severity are increased;
the reaction termination quenching section is of a four-section type, the four sections are straight pipe types, the cross-sectional area of the reaction termination quenching section is enlarged again compared with that of a third straight pipe section, a large amount of carbon black smoke is generated, and the expansion ratio of the cross-sectional area of the reaction termination quenching section to that of the third straight pipe section is 1.5-1.6: 1, the structure degree of the carbon black before the reaction is terminated is higher, the crystal nucleus collision is more violent, and a sufficient mixing space of water vapor and carbon black smoke is provided, so that the reaction can be terminated quickly;
the carbon black flue gas retention section is of a five-section type, the five sections are straight pipe types, the sectional area of the carbon black flue gas retention section is expanded again compared with the sectional area of the reaction termination quenching section, and the expansion ratio of the sectional area of the carbon black flue gas retention section to the sectional area of the reaction termination quenching section is 2.0-2.3: 1, enough gasification retention space can be provided.
Preferably, the furnace shell of the hard carbon black reaction furnace is formed by rolling and welding carbon steel, and a fire-resistant layer made of high-chromium corundum, a heat-insulating layer made of white corundum and a heat-insulating layer made of high-aluminum material are sequentially arranged inside the furnace shell from inside to outside.
The utility model has the advantages that:
1) the utility model adopts coal gas as fuel, the fuel is sprayed in through multiple points and is rotated and combusted to form spiral hot air flow, so that the fuel is more sufficiently combusted, the fuel cost is lower, sufficient heat energy is provided for reaction, the ash value of carbon black is reduced, the introduction of impurities is reduced, and the coal gas treatment burden of coking enterprises is also reduced;
2) compared with a 4-ten-thousand-ton hard carbon black reaction furnace, the length of the combustion chamber designed by the utility model is increased by 20-30%, and in the proportion of the straight pipe section and the horn section of the combustion chamber, the straight pipe section is lengthened, so that the combustion space is increased, the combustion is better and sufficient, and the fuel is saved;
3) the throat pipe section of the utility model is provided with double rows of raw material oil guns, 6 front row raw material oil guns are arranged, and 10 rear row raw material oil guns are arranged, so that the raw materials are better atomized when being sprayed into the reaction furnace, and the raw materials are more uniformly distributed; meanwhile, the designed inner diameter of the throat pipe is 1.5 times of the expansion of a 4-ten-thousand-ton hard carbon black reaction furnace, the length is increased by 30 percent, the spraying amount of raw materials can be increased, the product yield is increased, and the product quality is improved;
4) the reaction section of the utility model adopts the inclined reducing, so that the reaction carbon black smoke gas flow is accelerated again, the shearing force and the cracking degree are increased, the reaction is uniform and violent, and the produced carbon black particles are more uniform;
5) the utility model discloses reaction termination quench cooling section adopts and combines to expand once more with the reaction section, and the design reaction termination quench cooling section expansion ratio is 1.5-1.6 for the structure degree of carbon black before the reaction terminates is higher, and the crystal nucleus collision is more violent. And sufficient mixing space of the water vapor and the carbon black smoke is provided, so that the reaction can be terminated quickly;
6) the utility model discloses a raw materials are coal tar series's such as coal tar, anthracene oil, carbon black oil raw materials, especially after using the carbon black oil, it is more obvious to product quality promotion.
The utility model has the advantages of production and processing carbon black series kind is many, the productivity is high, stable in quality, consume low, easy operation is high-efficient, can produce products such as carbon black, high resistance conductive carbon black for the rubber, the ability of production carbon black can reach 6W ton/year.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
FIG. 1 is a schematic view of the present invention;
fig. 2(a) is a schematic diagram of the operation of the deflector of the present invention, and fig. 2(b) is a sectional view of the deflector;
FIG. 3 is a schematic view of fuel gas entering the combustion chamber;
FIG. 4 is a schematic view of combustion gas flow;
FIG. 5 is a schematic view of the arrangement of oil guns in a throat section;
FIG. 6 is a schematic diagram of the structure of the reaction section.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
As shown in fig. 1, a hard carbon black reaction furnace comprises a burner 1, a combustion chamber 2, a throat section 3, a reaction section 4, a reaction termination quenching section 5 and a carbon black flue gas retention section 6 which are connected in sequence;
as shown in fig. 2-3, the burner 1 is provided with an air inlet 11 in a radial direction, a flow guide device 12 is provided in the burner 1, the flow guide device 12 includes a flow guide plate, the flow guide plate is provided with flow guide holes 121, and the flow guide plate can guide preheated air entering the reaction furnace in a radial direction and then axially enter the combustion chamber 2;
the combustion chamber 2 comprises a first straight pipe section 21 and a first horn section 22 which are connected in sequence, wherein the length ratio of the first straight pipe section 21 to the first horn section 22 is 0.7: 1, the first straight pipe section 21 is designed to be longer, so that the combustion space is increased, the combustion is more sufficient, the taper of the first horn section 22 is 6.0-7.0 degrees, and a fuel gas inlet is arranged at the joint of the first straight pipe section 21 of the combustion chamber 2 and the burner 1;
as shown in fig. 5, the throat section 3 includes a second trumpet section 31 and a second straight section 32 connected in sequence, the second trumpet section 31 is connected with the first trumpet section 22 of the fuel chamber, from the first straight section 21 of the combustion chamber 2 to the second straight section 32 of the throat section 3, the burning fluid is accelerated continuously along the first trumpet section 22 and the second trumpet section 31, and according to the laval nozzle principle, the contraction ratio of the cross-sectional area of the second straight section 32 to the cross-sectional area of the first straight section 21 is 1: 7-9, the second horn section 31 is provided with front row raw material oil guns 311, the second straight pipe section 32 is provided with rear row raw material oil guns 321, 6 front row raw material oil guns 311 are provided, and 10 rear row raw material oil guns 321 are provided;
as shown in fig. 6, the reaction section 4 includes an inclined plane reducer section 41 and a third straight pipe section 42 which are connected in sequence, the caliber of the contraction end of the inclined plane reducer section 41 is consistent with the inner diameter of the second straight pipe section 32 of the throat section 3, the reducing angle of the inclined plane reducer section 41 is 15 to 20 °, and the expansion ratio of the cross-sectional area of the third straight pipe section 42 to the cross-sectional area of the second straight pipe section 32 is 3 to 5: 1, after entering a reaction section 4, the carbon black smoke passes through an inclined plane reducing section 41, so that the carbon black smoke is accelerated to crack again, and the shearing force and the reaction severity are increased;
the reaction termination quenching section 5 is of a four-section type, the four sections are straight tube types, the cross-sectional area of the reaction termination quenching section 5 is enlarged again compared with the cross-sectional area of the third straight tube section 42, a large amount of carbon black smoke is generated, and the expansion ratio of the cross-sectional area of the reaction termination quenching section 5 to the cross-sectional area of the third straight tube section 42 is 1.5-1.6: 1, the structure degree of the carbon black before the reaction is terminated is higher, the crystal nucleus collision is more violent, and a sufficient mixing space of water vapor and carbon black smoke is provided, so that the reaction can be terminated quickly;
the carbon black flue gas retention section 6 is of a five-section type, the five sections are straight pipe types, the sectional area of the carbon black flue gas retention section 6 is expanded again compared with the sectional area of the reaction termination quenching section 5, and the expansion ratio of the sectional area of the carbon black flue gas retention section 6 to the sectional area of the reaction termination quenching section 5 is 2.0-2.3: 1, enough gasification retention space can be provided.
The furnace shell of the hard carbon black reaction furnace is formed by rolling and welding carbon steel, and a fire-resistant layer made of high-chromium corundum, a heat-insulating layer made of white corundum and a heat-insulating layer made of high-aluminum material are sequentially arranged inside the furnace shell from inside to outside.
The process parameters for producing hard carbon black in a 6 ten thousand ton/year hard reaction furnace are compared with the process parameters for producing hard carbon black in a 4 ten thousand ton/year hard reaction furnace, as shown in table 1:
TABLE 16 comparison of Process parameters for ten thousand ton and 4 thousand ton furnaces
| Production line | 6-thousand-ton reaction furnace | 4 million ton reaction furnace |
| Raw oil proportioning | 100% carbon black oil | 100% carbon black oil |
| FIC-103(Nm3/h) | 19000 | 16000 |
| FIC-101(Kg/h) | 10700 | 8582 |
| FIC-102(Nm3/h) | 2114 | 1634 |
| Gas conversion fuel (Kg/h) | 845.6 | 653.6 |
| Additive concentration (kg/785LL) | 40 | 40 |
| Additive flow (Nm)3/h) | 43 | 52 |
| Amount of granulation Water (Nm)3/h) | 9854 | 7100 |
| Raw material total amount/24 h | 257 | 205.86 |
| Total fuel/24 h | 50736 | 40184.1 |
| The yield is T/24h | 182 | 145 |
| Raw material consumption T/T | 1.412 | 1.420 |
| Comprehensive consumption T/T (including gas break) | 1.524 | 1.531 |
As can be seen from table 1, compare with 4 ten thousand reacting furnaces, the utility model discloses 6 ten thousand tons of reacting furnaces's productivity, daily output promotes 25%, and the production consumption reduces relatively. The utility model discloses an energy saving and consumption reduction, low carbon and emission reduction, economic benefits and social are showing.
The utility model discloses the testing result of the different types of carbon black that hard carbon black reacting furnace produced, as shown in table 2:
TABLE 2 detection results of carbon Black
As can be seen from table 2, the utility model discloses the high resistance carbon black of production, carbon black N330 for rubber performance are excellent, all can satisfy customer's index requirement.
As shown in fig. 2-4, the fuel is injected at multiple points and is combusted in a rotating manner to form a spiral fuel gas flow, so that the combustion is more thorough and sufficient, and sufficient heat energy is provided for the reaction. The utility model discloses in combustion chamber straight tube section and loudspeaker section proportion, with straight tube section extension to increase the space of fuel burning, make the distance of burning longer, the burning is more abundant, can effectual fuel economy. As shown in fig. 5, two rows of raw material oil guns are arranged in the throat section, 6 raw material oil guns are arranged in the front row, and 10 raw material oil guns are arranged in the rear row. As shown in fig. 2-3, the preheated air from the burner radially enters the reaction furnace, and after being guided by the guide plate, the high-temperature preheated air axially enters the combustion chamber. As shown in FIG. 6, the inclined reducing section is arranged in the reaction section, so that the reaction is more uniform and violent, and the produced carbon black particles are more uniform.
By each of the above key designs, the flow guiding device of the burner can stabilize the preheated air flow so that the fuel provides a stable oxygen flow. The fuel uses coal gas, and multi-point position jet combustion is adopted to form rotary combustion flow, so that the fuel is more fully combusted, sufficient heat intensity is provided, and the combustion theory can control the stable temperature to 1900-. The combustion chamber provides enough heat crack energy, and the raw materials is gasified rapidly and participates in pyrolysis after entering the throat section, and is sprayed into the raw materials through two rows of raw material oil guns, so that the raw materials are atomized more thoroughly, the atomization time is shorter, and the reaction is more timely and sufficient. Raw oil is tangentially sprayed into the inclined surface reducing section of the reaction section from the raw oil gun point of the throat section at an angle of 90 degrees, the raw oil is broken into fine oil drops under the action of high-temperature, high-speed and strong shearing force, then the oil drops are gasified, a small part of the raw oil is combusted, and most of the raw oil is cracked to generate carbon black. The raw oil reacts violently at the slope reducing section, so that the generated carbon black particles are more uniform, the tinting strength of the carbon black can be effectively improved, and the internal quality of the product is improved. After entering the quenching section, quenching water is injected to reduce the temperature so as to terminate the reaction, thereby ensuring that the generated carbon black has stable quality and uniform particles.
The utility model has the advantages of many kinds of production and processing carbon black series, high productivity, stable quality, low consumption, simple operation, high efficiency and the like, and the production capacity of the carbon black can reach 6W ton/year.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement, component separation or combination made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. The utility model provides a hard carbon black reacting furnace, includes the burner, combustion chamber, throat section, reaction termination quench cooling section, carbon black flue gas that meet in proper order and stops the section, its characterized in that:
the jet burner is provided with an air inlet in the radial direction, a flow guide device is arranged in the jet burner and comprises a flow guide plate, and the flow guide plate is provided with flow guide holes;
the combustor comprises a first straight pipe section and a first horn section which are connected in sequence, wherein the length ratio of the first straight pipe section to the first horn section is 0.7: 1, the taper of the first horn section is 6.0-7.0 degrees, and a fuel gas inlet is arranged at the joint of the first straight pipe section of the combustion chamber and the burner;
the choke section is including the second loudspeaker section and the second straight tube section that connect gradually, the second loudspeaker section is connected with the first loudspeaker section in fuel room, the contraction ratio of second straight tube section cross-sectional area and first straight tube section cross-sectional area is 1: 7-9, the second horn section is provided with front row raw material oil guns, the second straight pipe section is provided with rear row raw material oil guns, the number of the front row raw material oil guns is 6, and the number of the rear row raw material oil guns is 10;
the reaction section comprises an inclined plane reducing section and a third straight pipe section which are sequentially connected, the caliber of a contraction end of the inclined plane reducing section is consistent with the inner diameter of the second straight pipe section of the throat section, the reducing angle of the inclined plane reducing section is 15-20 degrees, and the expansion ratio of the cross section area of the third straight pipe section to the cross section area of the second straight pipe section is 3-5: 1;
the reaction termination quenching section is of a four-section type, the four sections are all of a straight tube type, and the expansion ratio of the cross-sectional area of the reaction termination quenching section to the cross-sectional area of the third straight tube section is 1.5-1.6: 1;
the carbon black flue gas retention section is of a five-section type, the five sections are straight pipe types, and the expansion ratio of the cross section area of the carbon black flue gas retention section to the cross section area of the reaction termination quenching section is 2.0-2.3: 1.
2. the hard carbon black reaction furnace according to claim 1, characterized in that: the furnace shell of the hard carbon black reaction furnace is formed by rolling and welding carbon steel, and a fire-resistant layer made of high-chromium corundum, a heat-insulating layer made of white corundum and a heat-insulating layer made of high-aluminum material are sequentially arranged inside the furnace shell from inside to outside.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110511599A (en) * | 2019-09-04 | 2019-11-29 | 山西三强新能源科技有限公司 | Hard (carbon) black reacting furnace |
| CN112375405A (en) * | 2020-11-20 | 2021-02-19 | 苏州宝化炭黑有限公司 | Carbon black for silane coupling agent mixture and preparation method thereof |
| CN113667326A (en) * | 2021-09-08 | 2021-11-19 | 茂名环星新材料股份有限公司 | Method for preparing conductive carbon black |
-
2019
- 2019-09-04 CN CN201921461287.2U patent/CN210711361U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110511599A (en) * | 2019-09-04 | 2019-11-29 | 山西三强新能源科技有限公司 | Hard (carbon) black reacting furnace |
| CN112375405A (en) * | 2020-11-20 | 2021-02-19 | 苏州宝化炭黑有限公司 | Carbon black for silane coupling agent mixture and preparation method thereof |
| CN113667326A (en) * | 2021-09-08 | 2021-11-19 | 茂名环星新材料股份有限公司 | Method for preparing conductive carbon black |
| CN113667326B (en) * | 2021-09-08 | 2022-08-02 | 茂名环星新材料股份有限公司 | Method for preparing conductive carbon black |
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