CN112391187A - Oxidation device for producing high-softening-point asphalt - Google Patents
Oxidation device for producing high-softening-point asphalt Download PDFInfo
- Publication number
- CN112391187A CN112391187A CN201910756848.XA CN201910756848A CN112391187A CN 112391187 A CN112391187 A CN 112391187A CN 201910756848 A CN201910756848 A CN 201910756848A CN 112391187 A CN112391187 A CN 112391187A
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- China
- Prior art keywords
- softening point
- high softening
- shaft
- cylinder
- asphalt
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
- C10C3/00—Working-up pitch, asphalt, bitumen
- C10C3/02—Working-up pitch, asphalt, bitumen by chemical means reaction
- C10C3/04—Working-up pitch, asphalt, bitumen by chemical means reaction by blowing or oxidising, e.g. air, ozone
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
- B01J19/0066—Stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
- B01J2219/00094—Jackets
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Working-Up Tar And Pitch (AREA)
Abstract
The invention discloses an oxidation device for producing high-softening-point asphalt, which comprises a reactor bracket, a transmission mechanism and a reactor main body, wherein the transmission mechanism and the reactor main body are arranged on the reactor bracket; the transmission mechanism comprises a motor and a speed reducer, wherein an output shaft of the motor is sequentially connected with a belt pulley transmission shaft and a belt pulley, an input shaft of the speed reducer is also connected with the belt pulley, and the two belt pulleys are connected through a transmission belt to form transmission connection; the reactor main body comprises a cylinder assembly, wherein a stirring shaft is arranged in the cylinder assembly, the input end of the stirring shaft is connected with the output shaft of the speed reducer, and a plurality of blades and a plurality of bearings are fixed on the stirring shaft. The invention can ensure that the molecular weight of the produced asphalt is distributed uniformly, and meets the requirements of the fields of refractory materials, lithium ion battery cathode coating materials, general asphalt-based carbon fibers and the like.
Description
Technical Field
The invention relates to an asphalt production technology, in particular to an oxidation device for producing asphalt with a high softening point.
Background
The high softening point oxidized asphalt can be applied to various aspects of carbon materials, such as carbon fiber, foam carbon, hard carbon and the like. The present invention relates to a device patent application in the aspect of high softening point asphalt in China, such as a high softening point asphalt preparation device (ZL201220556396.4) applied by Shandong Ji-Yi-Hai-Xing chemical company, and the content comprises: the heating device comprises a monomer container, a heating device and a heating device, wherein the monomer container is provided with a stirring mechanism, at least three sections of heating areas are arranged above and below the monomer container, and each section of heating area is provided with a heater which is independent; the bottom of the monomer container is provided with an inert gas inlet. The preparation device enables the modified asphalt to be heated more uniformly, even if the softening point required by the modified asphalt is higher, the modified asphalt can be heated uniformly in the monomer container, and all the modified asphalt can be ensured to participate in polymerization reaction, so that the softening point is controlled in a narrower range, and the product quality is more stable.
Stifled equipment is prevented to high softening point pitch delivery pump (ZL201320551563.0) as Weifang converge intelligent chemical industry limited company application relates to pitch production facility technical field, include: the top of the cylindrical body is provided with a large cover matched with the cylindrical body; the bottom of the large cover is provided with a baffle plate which extends into the inner cavity of the cylindrical body; the heat conduction jacket is arranged outside the cylindrical body, and a heat conduction oil inlet and a heat conduction oil outlet are respectively formed in the lower part and the upper part of the heat conduction jacket; the asphalt inlet is arranged at the lower part of the outer wall of the cylindrical body and penetrates through the heating jacket; and the deslagging port is arranged at the lower part of the outer wall of the cylindrical body and penetrates through the heat conduction jacket. The plugging device solves the problem that melted asphalt in the prior art contains more solid impurities.
Still like the separator (ZL201420132943.5) that is used for high softening point pitch of carbon science and technology Limited liability company application in Xinjiang, relate to a light and heavy component separator, including preheater, flash tank, knockout tower, cooling tower, hydrops jar, reboiler, circulating pump, extraction pump and vacuum system, the preheater links to each other with the flash tank, the flash tank links to each other with the knockout tower, the knockout tower links to each other with cooling tower, circulating pump, extraction pump respectively, the circulating pump still links to each other with the knockout tower through the reboiler, the cooling tower links to each other with hydrops jar and vacuum system. The separating device can separate light components to the maximum extent and obtain heavy components, and the production efficiency of enterprises is greatly improved.
However, none of the above patents can solve the problem of uniform molecular weight distribution of the produced asphalt, that is, the asphalt produced by these devices cannot improve the quality of refractory products, coated asphalt, and spinning asphalt.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an oxidation device for producing asphalt with a high softening point, which can ensure that the molecular weight of the produced asphalt is uniformly distributed and meet the requirements of the fields of refractory materials, lithium ion battery cathode coating materials, general asphalt-based carbon fibers and the like.
In order to achieve the purpose, the invention adopts the following technical scheme:
an oxidation device for producing high-softening-point asphalt comprises a reactor bracket, a transmission mechanism and a reactor main body, wherein the transmission mechanism and the reactor main body are arranged on the reactor bracket;
the transmission mechanism comprises a motor and a speed reducer, wherein an output shaft of the motor is sequentially connected with a belt pulley transmission shaft and a belt pulley, an input shaft of the speed reducer is also connected with the belt pulley, and the two belt pulleys are in transmission connection through a transmission belt;
the reactor main body comprises a cylinder assembly, wherein a stirring shaft is arranged in the cylinder assembly, the input end of the stirring shaft is connected with the output shaft of the speed reducer, and a plurality of blades and a plurality of bearings are fixed on the stirring shaft.
The cylinder assembly comprises an upper cylinder and a lower cylinder matched with the upper cylinder, wherein the upper cylinder and the lower cylinder are stainless steel integral casting parts and are respectively provided with a heat tracing jacket with hot oil, the inner sides of the upper cylinder and the lower cylinder are respectively of a semi-elliptical cavity structure, and the outer sides of the end parts of the upper cylinder and the lower cylinder are respectively of a semi-circle shape.
The upper cylinder body is provided with a material inlet, an air inlet, a tail gas outlet, a heat conduction oil inlet, a heat conduction oil outlet and a temperature measuring hole, and the lower cylinder body is provided with a material flow outlet, a heat conduction oil inlet, a heat conduction oil outlet and a temperature measuring hole.
The cylinder assembly further comprises end covers connected to two end portions of the upper cylinder body and the lower cylinder body, a plurality of bearing seats used for mounting bearings are arranged in the end covers, the bearings are positioned on the stirring shaft through bearing sleeves and bearing positioning rings, and the bearing seats are fixed through bearing seat supports.
The bearing seat is provided with a bearing seat end socket, a cooling water inlet and outlet and a drain port, and the bearing is provided with a bearing and a sealing structure.
And the end cover is provided with a nitrogen interface, a heat conduction oil inlet and outlet interface and a clean discharge port.
The stirring shaft is positioned on a hollow stainless steel shaft.
The distance between the blades is 1-10 mm, and the gap between the maximum edge of each blade and the inner wall of the cylinder combination is 1-10 mm.
The input end of the stirring shaft is connected with the output shaft of the speed reducer through a coupler.
The upper cover of the speed reducer is provided with a protective cover.
In the technical scheme, the oxidation device for producing the asphalt with the high softening point can be used for producing novel carbon materials such as carbon fiber, foam carbon, hard carbon and the like, the raw material industry driven by the carbon materials is developed on a large scale, and meanwhile, a direction can be found for the asphalt outlet problem which is urgently needed to be solved in the coking industry at present, so that the material balance problem of the coking industry is solved, and the economic benefit of enterprises is improved.
Drawings
FIG. 1 is a front view of an oxidation apparatus of the present invention;
FIG. 2 is a top view of the oxidation apparatus of FIG. 1;
FIG. 3 is a right side view of the oxidation unit of FIG. 1;
fig. 4 is a sectional view of a reactor body in the oxidation apparatus of the present invention.
Detailed Description
The technical scheme of the invention is further explained by combining the drawings and the embodiment.
Referring to fig. 1 to 4, the oxidation apparatus for producing pitch with high softening point provided by the present invention comprises a reactor support 1, a transmission mechanism and a reactor main body 2, wherein the transmission mechanism and the reactor main body 2 are mounted on the reactor support 1, the transmission mechanism is connected with the reactor main body 2, and the reactor main body 2 is used for oxidation modulation of pitch under high temperature and vacuum conditions.
Preferably, the transmission mechanism comprises an 8P variable frequency motor 3 and a speed reducer 4, an output shaft of the 8P variable frequency motor 3 is sequentially connected with a belt pulley transmission shaft 5 and a belt pulley 6, an input shaft of the speed reducer 4 is also connected with a belt pulley 7, and the two belt pulleys 6 and 7 are connected through a transmission belt to form transmission connection.
Preferably, the reactor main body 2 comprises a cylinder assembly 8, wherein a stirring shaft 9 is arranged in the cylinder assembly, the input end of the stirring shaft 9 is connected with the output shaft of the speed reducer 4 through a coupler 10, the stirring shaft 9 is a hollow stainless steel shaft, and a plurality of blades 11, a plurality of bearings 12 and bearing locating rings 13 are fixed on the shaft.
Preferably, the distance between the blades 11 is 1-10 mm, the gap between the maximum edge of the blade 11 and the inner wall of the cylinder assembly 8 is 1-10 mm, and the maximum deflection value of the blade 11 is not more than 0-3 mm after the blade is installed.
Preferably, the cylinder assembly 8 comprises an upper cylinder and a lower cylinder matched with the upper cylinder, the upper cylinder and the lower cylinder are stainless steel integral casting parts and are both provided with a heat tracing jacket with hot oil, the inner sides of the upper cylinder and the lower cylinder are both in a semi-elliptical cavity structure, and the outer sides of the end parts are both in a semi-circle shape.
Preferably, the upper cylinder body is provided with various interfaces such as a material inlet, an air inlet, a tail gas outlet, a heat conduction oil inlet and outlet, a temperature measuring hole and the like, and the lower cylinder body is provided with various interfaces such as a material flow outlet, a heat conduction oil inlet and outlet, a temperature measuring hole and the like.
Preferably, the cylinder assembly 8 further includes end caps 14 connected to two ends of the upper and lower cylinders, a plurality of bearing seats 15 for placing and mounting the bearings 12 are installed in the end caps 14, the bearings 12 are spaced and positioned on the stirring shaft 9 through bearing sleeves 16 and bearing positioning rings 13, and the bearing seats 15 are fixed through bearing seat brackets 17.
Preferably, the bearing seat 15 is provided with a bearing seat seal head 18, a cooling water inlet/outlet and a drain port, and the bearing 12 is provided with a bearing and a sealing structure.
Preferably, the end cover 14 is provided with a nitrogen interface, a heat conducting oil inlet and outlet interface and a purge outlet.
Preferably, a protective cover is covered on the speed reducer 4.
Preferably, the upper cylinder, the lower cylinder and the end cover 14 are made of cast stainless steel materials, the cast stainless steel materials are respectively integrally cast and partially welded, no air holes or cracks exist, enough cutting machining allowance is reserved for a cast blank, the machined appearance meets the design requirements, and the single body is subjected to cold state pressure resistance, air tightness test, hot state heat conduction oil leakage test check and hot solid solution treatment. The cylinder combination 8 has no leakage and no air leakage at high temperature, the reactor main body 2 can flexibly run at high temperature, and the like. The inner walls of the upper and lower barrels need to be polished.
Preferably, the reactor main body 2 is freely rotated by turning gear, and performs a cold vacuum test, wherein the cold vacuum test requires: when the vacuum degree reaches 2.6KPa (A), the leakage amount is detected, and the vacuum degree is not lower than 30KPa (A) after 15 minutes.
Preferably, the bearing seat 15 is a carbon steel welding part, and cold pressure resistance, air tightness test and integral heat treatment are required.
Preferably, the couplings 10 must be manufactured in pairs, so that the relative rotational deviation angle of the two shafts is less than 1 °.
The oxidation device is used for the oxidation modulation of asphalt under the high-temperature and vacuum states, and the following functional requirements must be met:
1) the device has the functions of a high-temperature and vacuum chemical reactor, has good sealing property, and ensures that the vacuum degree required by the process is achieved by the suction of vacuum equipment at an equipment waste gas outlet under the conditions of continuous feeding and discharging and air blowing at the temperature of 150-335 ℃;
2) the material stirring function, the material in the device is under the effect of biax agitator, guarantees the abundant contact of material and hot-air, and under technology operating temperature, equipment operates steadily freely.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (10)
1. An oxidation unit for producing pitch with high softening point is characterized in that: comprises a reactor bracket, a transmission mechanism and a reactor main body, wherein the transmission mechanism and the reactor main body are arranged on the reactor bracket;
the transmission mechanism comprises a motor and a speed reducer, wherein an output shaft of the motor is sequentially connected with a belt pulley transmission shaft and a belt pulley, an input shaft of the speed reducer is also connected with the belt pulley, and the two belt pulleys are connected through a transmission belt to form transmission connection;
the reactor main body comprises a cylinder assembly, wherein a stirring shaft is arranged in the cylinder assembly, the input end of the stirring shaft is connected with the output shaft of the speed reducer, and a plurality of blades and a plurality of bearings are fixed on the stirring shaft.
2. An oxidizer for producing high softening point asphalt as claimed in claim 1, wherein: the cylinder assembly comprises an upper cylinder and a lower cylinder matched with the upper cylinder, wherein the upper cylinder and the lower cylinder are stainless steel integral casting parts and are respectively provided with a heat tracing jacket with hot oil, the inner sides of the upper cylinder and the lower cylinder are respectively of a semi-elliptical cavity structure, and the outer sides of the end parts of the upper cylinder and the lower cylinder are respectively of a semi-circle shape.
3. An oxidation unit for producing pitch with a high softening point according to claim 2, wherein: the upper cylinder body is provided with a material inlet, an air inlet, a tail gas outlet, a heat conduction oil inlet, a heat conduction oil outlet and a temperature measuring hole, and the lower cylinder body is provided with a material flow outlet, a heat conduction oil inlet, a heat conduction oil outlet and a temperature measuring hole.
4. An oxidation unit for producing pitch with a high softening point according to claim 2, wherein: the cylinder assembly further comprises end covers connected to two end portions of the upper cylinder body and the lower cylinder body, a plurality of bearing seats used for mounting bearings are arranged in the end covers, the bearings are positioned on the stirring shaft through bearing sleeves and bearing positioning rings, and the bearing seats are fixed through bearing seat supports.
5. An oxidation unit for producing pitch with a high softening point according to claim 4, wherein: the bearing seat is provided with a bearing seat end socket, a cooling water inlet and outlet and a drain port, and the bearing is provided with a bearing and a sealing structure.
6. An oxidation unit for producing pitch with a high softening point according to claim 4, wherein: and the end cover is provided with a nitrogen interface, a heat conduction oil inlet and outlet interface and a clean discharge port.
7. An oxidizer for producing high softening point asphalt as claimed in claim 1, wherein: the stirring shaft is positioned on a hollow stainless steel shaft.
8. An oxidizer for producing high softening point asphalt as claimed in claim 7, wherein: the distance between the blades is 1-10 mm, and the gap between the maximum edge of each blade and the inner wall of the cylinder combination is 1-10 mm.
9. An oxidizer for producing high softening point asphalt as claimed in claim 1, wherein: the input end of the stirring shaft is connected with the output shaft of the speed reducer through a coupler.
10. An oxidizer for producing high softening point asphalt as claimed in claim 1, wherein: the upper cover of the speed reducer is provided with a protective cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910756848.XA CN112391187A (en) | 2019-08-16 | 2019-08-16 | Oxidation device for producing high-softening-point asphalt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910756848.XA CN112391187A (en) | 2019-08-16 | 2019-08-16 | Oxidation device for producing high-softening-point asphalt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112391187A true CN112391187A (en) | 2021-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910756848.XA Pending CN112391187A (en) | 2019-08-16 | 2019-08-16 | Oxidation device for producing high-softening-point asphalt |
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| CN (1) | CN112391187A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020085221A (en) * | 2001-05-07 | 2002-11-16 | 한국원자력연구소 | An apparatus for continuously manufacturing bitumen-thermoplastics waste form |
| CN102686706A (en) * | 2009-12-31 | 2012-09-19 | 国际壳牌研究有限公司 | Multi-purpose reactor and process for the preparation of modified bitumen |
| CN206295851U (en) * | 2016-12-24 | 2017-07-04 | 江西瑞博特生物科技有限公司 | A kind of composite heat transfer biaxial rneader |
| CN206762706U (en) * | 2017-04-21 | 2017-12-19 | 南京塔川化工设备有限公司 | A kind of twin shaft mixing reactor in the same direction |
| CN209222047U (en) * | 2018-11-30 | 2019-08-09 | 郑健龙 | Asphalt mixing plant vibrating mixing device |
-
2019
- 2019-08-16 CN CN201910756848.XA patent/CN112391187A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020085221A (en) * | 2001-05-07 | 2002-11-16 | 한국원자력연구소 | An apparatus for continuously manufacturing bitumen-thermoplastics waste form |
| CN102686706A (en) * | 2009-12-31 | 2012-09-19 | 国际壳牌研究有限公司 | Multi-purpose reactor and process for the preparation of modified bitumen |
| CN206295851U (en) * | 2016-12-24 | 2017-07-04 | 江西瑞博特生物科技有限公司 | A kind of composite heat transfer biaxial rneader |
| CN206762706U (en) * | 2017-04-21 | 2017-12-19 | 南京塔川化工设备有限公司 | A kind of twin shaft mixing reactor in the same direction |
| CN209222047U (en) * | 2018-11-30 | 2019-08-09 | 郑健龙 | Asphalt mixing plant vibrating mixing device |
Non-Patent Citations (1)
| Title |
|---|
| 黄振兴: "《活性炭技术基础》", 30 June 2006, 兵器工业出版社 * |
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Application publication date: 20210223 |
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