CN216573100U - Dynamic tubular reactor - Google Patents
Dynamic tubular reactor Download PDFInfo
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- CN216573100U CN216573100U CN202123382618.3U CN202123382618U CN216573100U CN 216573100 U CN216573100 U CN 216573100U CN 202123382618 U CN202123382618 U CN 202123382618U CN 216573100 U CN216573100 U CN 216573100U
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Abstract
The utility model discloses a dynamic tubular reactor, which comprises a reactor body; the interior of the reactor body comprises a mixing zone, a mass transfer zone and a time-delay reaction zone; the reactor body is connected with a heat exchange unit; the top of the reactor body is provided with a first material inlet and a second material inlet; a mixing area is arranged above the inner part of the reactor body; a mixing baffle is arranged at the bottom of the mixing area; a first blanking channel is arranged in the center of the material mixing baffle; use this application a developments tubular reactor, can make the material be heated at the reaction in-process evenly, the misce bene avoids the caking to block up, has improved reaction efficiency.
Description
Technical Field
The utility model relates to a chemical production equipment field, concretely relates to developments tubular reactor.
Background
1-nitroanthraquinone is one of the most important anthraquinone derivatives at present, and is widely used for drug synthesis, dyes and other fine chemicals; in addition, with the continuous development of the dye industry in China, the demand of 1-aminoanthraquinone is continuously increased, and the 1-aminoanthraquinone is an intermediate for synthesizing various dyes of anthraquinone series, is mainly used for producing anthraquinone dyes, is also used for inks, coatings, pigments, liquid crystal dyes, photosensitizers, catalysts for electrically and catalytically reducing H2O2 and the like, and has wide application. The domestic demand of anthraquinone dye reaches 8000t in 2014, and the increase rate of the anthraquinone dye is increased year by 15-20%. At present, the synthesis methods of 1-aminoanthraquinone mainly comprise the following methods: the method comprises the following steps of firstly, sulfonating and ammonolyzing anthraquinone to remove mercury poisoning and cause environmental pollution, secondly, carrying out nitration-reduction on anthraquinone, thirdly, carrying out naphthoquinone electrolysis, and having high requirements on equipment, wherein the most industrially used synthetic methods are anthraquinone nitration-reduction and nitration-substitution, and both 1-nitroanthraquinone are used as raw materials. In view of the huge market of anthraquinone dyes, how to synthesize 1-nitroanthraquinone with high conversion rate, high purity and less waste acid consumption is one of the key points needing to be researched at present.
The traditional synthetic method of the 1-nitroanthraquinone comprises the following steps: pure nitric acid nitration, mixed acid HNO3+ H2SO4 nitration and a solvent nitration method, wherein the digestion difficulty of the pure nitric acid nitration is high, the dosage of the nitric acid is large, and the content of anthraquinone: nitric acid is 20, by-products are large, post-treatment is difficult, yield is low by about 70%, and water produced during the reaction dilutes the nitric acid concentration, increasing the oxidation reaction. The mixed acid nitration system has strong nitration activity and the yield is about 75 percent higher than that of pure nitric acid nitration, but a large amount of mixed acid is needed to increase the fluidity of the reaction system, otherwise, the fluidity of the raw materials is poor, and the mixing effect is poor. The solvent nitration method is a method for preparing 1-nitroanthraquinone most commonly used at present by adding an inert organic solvent on the basis of mixed acid to increase the fluidity of raw materials and reduce the dosage of the mixed acid. The traditional production process of the 1-nitroanthraquinone is carried out in a reaction kettle, and has the problems of flammability and explosiveness, low product conversion rate and purity, large waste acid generation amount, long reaction period and the like.
The dynamic tubular reactor is a novel reactor in the 21 st century, can solve a series of problems existing in dangerous processes such as nitration, diazotization and alkylation reactions, has the excellent characteristics of accurate temperature control, small occupied area, high automation degree, high mass transfer efficiency, stable equipment property and the like, and provides a future development direction for high-temperature and high-pressure reaction processes of the microchannel reactor. However, the existing dynamic tubular reactor has the defects of uneven reaction, poor heat transfer effect and the like, and has the problems of easy blockage and incomplete reaction.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a developments tubular reactor to solve the problem that prior art exists.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a dynamic tubular reactor, comprising a reactor body 1; the reactor body 1 comprises a mixing zone 2, a mass transfer zone 3 and a time-delay reaction zone 4 inside; the reactor body 1 is connected with a heat exchange unit 5;
the top of the reactor body 1 is provided with a first material inlet 6 and a second material inlet 7; a mixing area 2 is arranged above the inner part of the reactor body 1; a mixing baffle 8 is arranged at the bottom of the mixing area 2; a first blanking channel 9 is arranged in the center of the mixing baffle 8;
the time-delay reaction zone 4 is arranged below the mixing zone 2;
said mass transfer zone 3 comprises a first mass transfer zone 3.1 and a second mass transfer zone 3.2; the first mass transfer zone 3.1 is arranged around the outer wall of the delayed reaction zone 4; the second mass transfer zone 3.2 is disposed in the center of the delayed reaction zone 4; the first mass transfer area 3.1 is provided with an external heat transfer medium inlet 10 and an external heat transfer medium outlet 11; the second mass transfer area 3.2 is provided with an inner heat transfer medium inlet 12 and an inner heat transfer medium outlet 13; the external heat transfer medium inlet 10 and the internal heat transfer medium inlet 12 are respectively connected with the liquid outlets of the heat exchanger unit 5; the outer heat transfer medium outlet 11 and the inner heat transfer medium outlet 13 are respectively connected with a liquid inlet of the heat exchanger unit 5;
a product outlet 14 is arranged on the side wall of the reactor body 1; the product outlet 14 is provided with a product outlet channel 15.
Further, the second mass transfer zone 3.2 is arranged in a cylindrical structure; the center of the second mass transfer area 3.2 is provided with a rotating shaft 16; the bottom of the rotating shaft 16 is connected with a rotating motor 17; the rotating motor 17 drives the second mass transfer area 3.2 to integrally rotate; the inner surface of the reactor body 1 is arranged into a cylindrical structure; the rotating shaft 16 is arranged on the straight line of the central shaft in the reactor body; a liquid reaction gap 18 is provided between the outer surface of the second mass transfer zone 3.2 and the inner surface of the reactor body 1.
Further, the device also comprises a PLC (programmable logic controller) 20 and a temperature sensor; the temperature sensor is arranged inside the reactor body 1; the PLC controller 20 is arranged outside the reactor body 1; the temperature sensor is in control connection with the PLC controller 20.
Further, the device also comprises a viscosity sensor; the viscosity sensor is in control connection with the PLC controller 20.
Furthermore, flow valves are arranged on the first material inlet 6, the second material inlet 7, the external heat transfer medium inlet 10, the internal heat transfer medium inlet 12, the external heat transfer medium outlet 11, the internal heat transfer medium outlet 13 and the product outlet 14; the flow valve is in control connection with the PLC 20; the rotating motor 17 is connected to a PLC controller 20.
Further, the width of the liquid reaction gap 18 is set to 1mm to 5 mm.
Further, the heat exchanger unit 5 is a cold and hot integrated machine.
Compared with the prior art, the utility model discloses an at least, have one of following beneficial effect:
in the prior art, the preparation of 1-nitroanthraquinone is generally carried out by utilizing a continuous flow plate reactor, but because the plate reactor can not have solids, a large amount of sulfuric acid and dichloroethane are required to be consumed to dissolve raw materials to form saturated solution. The reactor can feed solid slurry by about 30 percent, and does not need to dissolve the raw material anthraquinone by using a large amount of sulfuric acid and dichloroethane.
The application discloses a method for using a dynamic tubular reactor, which comprises the following steps: firstly, two materials are introduced into a mixing zone 2 in a reactor body 1 through a first material inlet 6 and a second material inlet 7 in proportion, the two materials are primarily mixed under the action of a mixing baffle 8, the primarily mixed materials enter the reactor body 1 and enter a liquid reaction gap 18 from top to bottom, a shearing action force is generated under high-speed rotation, the materials form a layer of liquid film in the gap, and the materials are subjected to local microcirculation mixing in the form, so that the heat and mass transfer effect is enhanced.
To sum up, use this application dynamic tubular reactor, can make the material be heated evenly in reaction process, the misce bene avoids the caking to block up, has improved reaction efficiency. The heat exchanger unit adopts a cold-hot all-in-one machine to accurately control the temperature, the reaction temperature is properly increased, and the reaction rate is increased; the reactor equipment of this application area is little, practices thrift the land used, and PLC control system simultaneously, convenient operation, degree of automation is high, uses manpower sparingly.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure:
a reactor body 1; a mixing zone 2; a mass transfer zone 3; a time-delay reaction zone 4; a heat exchanger unit 5; a first material inlet 6; a second material inlet 7; a mixing baffle 8; a first blanking channel 9; an external heat transfer medium inlet 10; an external heat transfer medium outlet 11; an inner heat transfer medium inlet 12; an inner heat transfer medium outlet 13; a product outlet 14; a product outlet channel 15; a rotating shaft 16; a rotating motor 17; a liquid reaction gap 18; a PLC controller 20; and a mechanical seal 22.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in the figure:
example 1:
a dynamic tubular reactor comprising a reactor body 1; the reactor body 1 comprises a mixing zone 2, a mass transfer zone 3 and a time-delay reaction zone 4 inside; the reactor body 1 is connected with a heat exchange unit 5;
the top of the reactor body 1 is provided with a first material inlet 6 and a second material inlet 7; a mixing area 2 is arranged above the inner part of the reactor body 1; a mixing baffle 8 is arranged at the bottom of the mixing area 2; a first blanking channel 9 is arranged in the center of the mixing baffle plate 8;
the time-delay reaction zone 4 is arranged below the mixing zone 2;
said mass transfer zone 3 comprises a first mass transfer zone 3.1 and a second mass transfer zone 3.2; the first mass transfer zone 3.1 is arranged around the outer wall of the delayed reaction zone 4; the second mass transfer zone 3.2 is disposed in the center of the delayed reaction zone 4; the first mass transfer area 3.1 is provided with an external heat transfer medium inlet 10 and an external heat transfer medium outlet 11; the second mass transfer area 3.2 is provided with an inner heat transfer medium inlet 12 and an inner heat transfer medium outlet 13; the external heat transfer medium inlet 10 and the internal heat transfer medium inlet 12 are respectively connected with the liquid outlets of the heat exchanger unit 5; the outer heat transfer medium outlet 11 and the inner heat transfer medium outlet 13 are respectively connected with a liquid inlet of the heat exchanger unit 5;
a product outlet 14 is arranged on the side wall of the reactor body 1; the product outlet 14 is provided with a product outlet channel 15. This application makes being heated of reaction material more completely and even through setting up inside and outside mass transfer district.
Example 2:
on the basis of example 1:
the second mass transfer zone 3.2 is arranged in a cylindrical structure; the center of the second mass transfer area 3.2 is provided with a rotating shaft 16; the bottom of the rotating shaft 16 is connected with a rotating motor 17; the rotating motor 17 drives the second mass transfer area 3.2 to integrally rotate; the inner surface of the reactor body 1 is arranged into a cylindrical structure; the rotating shaft 16 is arranged on the straight line of the central shaft in the reactor body; a liquid reaction gap 18 is provided between the outer surface of the second mass transfer zone 3.2 and the inner surface of the reactor body 1.
In this embodiment, the second mass transfer area 3.2 is a cylindrical structure, and a rotating shaft 16 is arranged inside the second mass transfer area, the rotating shaft 16 drives the whole second mass transfer area 3.2 to move under the action of a rotating motor 17, and a mechanical seal 22 is arranged between the rotating shaft 16 and the reactor body 1; the rotating shaft 16 is of a hollow structure and is communicated with the 3.2 cylindrical structure area of the second mass transfer area, and the inner heat transfer medium inlet is communicated with the 3.2 cylindrical structure area of the second mass transfer area to inject liquid; the inner heat transfer medium outlet is communicated with the rotating shaft 16 to flow out liquid to realize the mass transfer process, and sealing structures are arranged at the positions of the inner heat transfer medium outlet and the rotating shaft according to requirements.
Example 3:
on the basis of examples 1-2:
the device also comprises a PLC (programmable logic controller) 20 and a temperature sensor; the temperature sensor is arranged inside the reactor body 1; the PLC controller 20 is arranged outside the reactor body 1; the temperature sensor is in control connection with the PLC controller 20.
Example 4:
on the basis of examples 1 to 3:
also includes a viscosity sensor; the viscosity sensor is in control connection with the PLC controller 20.
Example 5:
on the basis of examples 1 to 4:
flow valves are arranged on the first material inlet 6, the second material inlet 7, the external heat transfer medium inlet 10, the internal heat transfer medium inlet 12, the external heat transfer medium outlet 11, the internal heat transfer medium outlet 13 and the product outlet 14; the flow valve is in control connection with the PLC 20; the rotating motor 17 is connected to a PLC controller 20.
Example 6:
on the basis of examples 1 to 5:
the width of the liquid reaction gap 18 is set to 1mm to 5 mm.
Example 7:
on the basis of examples 1 to 6: the heat exchanger unit 5 is a cold-hot integrated machine.
The application discloses a method for using a dynamic tubular reactor, which comprises the following steps: firstly, two materials are introduced into a mixing zone 2 in a reactor body 1 through a first material inlet 6 and a second material inlet 7 in proportion, the two materials are primarily mixed under the action of a mixing baffle 8, the primarily mixed materials enter the reactor body 1 and enter a liquid reaction gap 18 from top to bottom, a shearing action force is generated under high-speed rotation, the materials form a layer of liquid film in the gap, and the materials are subjected to local microcirculation mixing in the form, so that the heat and mass transfer effect is enhanced.
To sum up, use this application dynamic tubular reactor, can make the material be heated evenly in reaction process, the misce bene avoids the caking to block up, has improved reaction efficiency. The heat exchanger unit adopts a cold-hot all-in-one machine to accurately control the temperature, the reaction temperature is properly increased, and the reaction rate is increased; the reactor equipment of this application area is little, practices thrift the land used, and PLC control system simultaneously, convenient operation, degree of automation is high, uses manpower sparingly.
Reference throughout this specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally in this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.
Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.
Claims (7)
1. A dynamic tubular reactor, characterized by comprising a reactor body (1); the reactor body (1) comprises a mixing zone (2), a mass transfer zone (3) and a delayed reaction zone (4); the reactor body (1) is connected with a heat exchange unit (5);
a first material inlet (6) and a second material inlet (7) are formed in the top of the reactor body (1);
a mixing area (2) is arranged above the inner part of the reactor body (1); a mixing baffle (8) is arranged at the bottom of the mixing area (2); a first blanking channel (9) is arranged in the center of the mixing baffle (8);
the time-delay reaction zone (4) is arranged below the mixing zone (2);
the mass transfer zone (3) comprises a first mass transfer zone (3.1) and a second mass transfer zone (3.2); the first mass transfer zone (3.1) is arranged around the outer wall of the delayed reaction zone (4); the second mass transfer zone (3.2) is arranged in the center of the delayed reaction zone (4); the first mass transfer area (3.1) is provided with an external heat transfer medium inlet (10) and an external heat transfer medium outlet (11); the second mass transfer area (3.2) is provided with an inner heat transfer medium inlet (12) and an inner heat transfer medium outlet (13); the outer heat transfer medium inlet (10) and the inner heat transfer medium inlet (12) are respectively connected with the liquid outlet of the heat exchanger unit (5); the outer heat transfer medium outlet (11) and the inner heat transfer medium outlet (13) are respectively connected with a liquid inlet of the heat exchanger unit (5);
a product outlet (14) is arranged on the side wall of the reactor body (1); a product outlet channel (15) is arranged on the product outlet (14).
2. A dynamic tube reactor as set forth in claim 1 wherein: the second mass transfer zone (3.2) is arranged in a cylindrical structure; a rotating shaft (16) is arranged in the center of the second mass transfer area (3.2); the bottom of the rotating shaft (16) is connected with a rotating motor (17); the rotating motor (17) drives the second mass transfer area (3.2) to integrally rotate; the inner surface of the reactor body (1) is arranged to be a cylindrical structure; the rotating shaft (16) is arranged on the straight line of the central shaft in the reactor body; a liquid reaction gap (18) is arranged between the outer surface of the second mass transfer area (3.2) and the inner surface of the reactor body (1).
3. A dynamic tube reactor as set forth in claim 1 wherein: the device also comprises a PLC (programmable logic controller) controller (20) and a temperature sensor; the temperature sensor is arranged inside the reactor body (1); the PLC controller (20) is arranged outside the reactor body (1); the temperature sensor is connected with the PLC controller (20) in a control way.
4. A dynamic tube reactor as set forth in claim 3 wherein: also includes a viscosity sensor; the viscosity sensor is connected with a PLC (20) in a control way.
5. A dynamic tube reactor as set forth in claim 3 wherein: flow valves are arranged on the first material inlet (6), the second material inlet (7), the outer heat transfer medium inlet (10), the inner heat transfer medium inlet (12), the outer heat transfer medium outlet (11), the inner heat transfer medium outlet (13) and the product outlet (14); the flow valve is in control connection with a PLC (20); the rotating motor (17) is connected with a PLC (programmable logic controller) controller (20).
6. A dynamic tube reactor as set forth in claim 2 wherein: the width of the liquid reaction gap (18) is set to be 1mm-5 mm.
7. A dynamic tube reactor as set forth in claim 1 wherein: the heat exchanger unit (5) is a cold-hot integrated machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123382618.3U CN216573100U (en) | 2021-12-29 | 2021-12-29 | Dynamic tubular reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123382618.3U CN216573100U (en) | 2021-12-29 | 2021-12-29 | Dynamic tubular reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216573100U true CN216573100U (en) | 2022-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123382618.3U Active CN216573100U (en) | 2021-12-29 | 2021-12-29 | Dynamic tubular reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216573100U (en) |
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2021
- 2021-12-29 CN CN202123382618.3U patent/CN216573100U/en active Active
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