CN203389641U - Acetonitrile reactor structure - Google Patents
Acetonitrile reactor structure Download PDFInfo
- Publication number
- CN203389641U CN203389641U CN201320404694.6U CN201320404694U CN203389641U CN 203389641 U CN203389641 U CN 203389641U CN 201320404694 U CN201320404694 U CN 201320404694U CN 203389641 U CN203389641 U CN 203389641U
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- reactor
- acetonitrile
- reaction kettle
- baffle plates
- reaction device
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Abstract
The utility model relates to an acetonitrile reactor structure. The acetonitrile reactor structure comprises a reaction kettle, wherein the reaction kettle is internally provided with a stirrer. The acetonitrile reactor structure is characterized in that the inner side wall of the reaction kettle is provided with a plurality of first baffle plates longitudinally arranged; the bottom surface of the reaction kettle is provided with a plurality of second baffle plates; the outer peripheral wall of the reaction kettle is provided with a jacket through a heat transfer stop can pass. Compared with the prior art, according to an acetonitrile reactor provided by the utility model, a plurality of longitudinal flow stabilizing baffle plates and a plurality of bottom flow stabilizing baffle plates are uniformly distributed in an operating area so as to improve the mixing effect, and the jacket is externally arranged for heat exchange at the same time so as to keep temperature stabilization inside the reactor; and therefore, a flowing state and reaction conditions of materials inside the reactor can be effectively improved, so that the materials are sufficiently mixed in the reactor so as to improve the reaction efficiency, and thus the retention time is reduced, the size of the reactor is reduced, the occupied area is saved, and the investment is saved.
Description
Technical field
The utility model relates to chemical industry equipment, specifically refers to a kind of acetonitrile reaction device structure.
Background technology
Acetonitrile is the organic solvent of function admirable, is also the important source material of fine chemistry industry.The purposes of acetonitrile is very extensive, can be used as the extractant of butadiene fraction, isoprene fraction in petrochemical industry; In medicine, agricultural chemicals, dyestuff and synthetic perfume, be important raw material or intermediate, also can be used as analytical reagent for high pressure liquid chromatographic analysis.The method of synthesizing acetonitrile is a lot, has the direct synthesis techniques such as acetic acid and ammonia react, propane and ammonia react, ethanol and ammonia react, and the method for synthesis of acrylonitrile while by-product acetonitrile.Current synthesis of acrylonitrile simultaneously by-product acetonitrile is the main source of industrial production acetonitrile.In by-product crude acetonitrile, also contain the impurity such as water, acetone, propionitrile, cyanophenyl, and only reaching 99%, acetonitrile purity just can be widely used when above.
Acetonitrile purifying technique obtains smart acetonitrile through decyanation, dehydration and rectifying.Crude acetonitrile, formalin, sodium hydroxide solution carry out decyanization reaction in acetonitrile reaction device.The structure of acetonitrile reaction device, to having determined the time of staying of the mixture homogeneity of material, material, reaction temperature etc. in reactor, affects the carrying out of decyanization reaction, and the effect of decyanation is had to vital impact.
Summary of the invention
Technical problem to be solved in the utility model is that the present situation for prior art provides the acetonitrile reaction device structure that a kind of mixing effect is good, thereby improve flow regime and the reaction environment of material in reactor, make material abundant mixing in reactor improve reaction efficiency, to reach, reduce the time of staying, dwindle reactor size, save floor space and save the object of investing.
The utility model solves the problems of the technologies described above adopted technical scheme: this acetonitrile reaction device structure, comprise reactor, in described reactor, be provided with agitator, it is characterized in that the madial wall of described reactor is provided with the first baffle plate of polylith longitudinal arrangement, the bottom surface of described reactor is provided with polylith second baffle, and the periphery wall of described reactor is provided with for supplying heat exchange by the chuck passing through.
Described in each, the first baffle plate is uniformly distributed in the circumferential direction of the madial wall of described reactor; Described second baffle is radial and is uniformly distributed on the bottom surface of described reactor.
As preferably, the blade of described agitator is pusher blade or slurry formula blade.This structure mixing effect is better.
In order further to improve mixed effect, can also increase stirring action at the middle part of material in reactor, the shaft of described agitator be provided with 1～4 group described in blade.
The ratio of height to diameter of described reactor is preferably 1.3～2.5:1.
In above-mentioned each scheme, the first described baffle plate has 2～8, and described second baffle has 2～8.
Compared with prior art, the longitudinal current stabilization baffle plate of acetonitrile reaction device provided by the utility model uniform polylith in operating area and polylith bottom current stabilization baffle plate are to improve mixed effect, peripheral hardware jacket for heat exchange is to keep reactor temperature stable simultaneously, therefore can effectively improve flow regime and the reaction condition of material in reactor, make material fully mix to improve reaction efficiency in reactor, thereby reduce the time of staying, dwindle reactor size, save floor space, save investment.
Accompanying drawing explanation
Fig. 1 is the longitudinal sectional view of the utility model embodiment assembly structure;
Fig. 2 is the cutaway view along A-A line in Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
As depicted in figs. 1 and 2, this acetonitrile reaction device structure comprises reactor 1 and agitator 2 and is arranged on the chuck 3 on reactor periphery wall.
Wherein, reactor 1 is vertical response still, and its diameter is the high 3000mm of being of 2300mm, cylindrical shell, and the ratio of height to diameter of reactor is 1.3:1; The madial wall of reactor is provided with the first baffle plate 11 of polylith longitudinal arrangement, and in the present embodiment, the first baffle plate has four, along being circumferentially uniformly distributed of reactor.On the bottom surface of reactor, be radial four second baffles 12 that are evenly distributed with.
The drive motors 21 of agitator 2 is arranged on outside reactor, and shaft 22 is positioned at reactor through the shaft perforation of reactor.The blade 23 that is arranged on shaft lower end is pusher blade, can be also slurry formula blade or other structure.In the present embodiment, on shaft, being also interval with 24, two groups of blades of two groups of blades is two oar formulas.The structure of these two groups of blades 24 can select as required of the prior art any one.
The reactor inlet amount 1300kg/h of take is example, in reactor, reaction pressure is 0.014MPa (G), to logical steam in chuck, make the temperature of charge in reactor remain on 50 ℃ of left and right, reacting rear material is discharged from the bottom mouth of pipe of reactor, the material in reactor time of staying is about 10 hours, and decyanation rate is greater than 99%.
Claims (6)
1. an acetonitrile reaction device structure, comprise reactor, in described reactor, be provided with agitator, it is characterized in that the madial wall of described reactor is provided with the first baffle plate of polylith longitudinal arrangement, the bottom surface of described reactor is provided with polylith second baffle, and the periphery wall of described reactor is provided with for supplying heat exchange by the chuck passing through.
2. acetonitrile reaction device structure according to claim 1, is characterized in that described in each that the first baffle plate is uniformly distributed in the circumferential direction of the madial wall of described reactor; Described second baffle is radial and is uniformly distributed on the bottom surface of described reactor.
3. acetonitrile reaction device structure according to claim 1 and 2, the blade that it is characterized in that described agitator is pusher blade or slurry formula blade.
4. acetonitrile reaction device structure according to claim 3, the shaft that it is characterized in that described agitator be provided with 1～4 group described in blade.
5. the acetonitrile reaction device structure of stating according to claim 4, the ratio of height to diameter that it is characterized in that described reactor is 1.3～2.5:1.
6. acetonitrile reaction device structure according to claim 5, is characterized in that the first described baffle plate has 2～8, and described second baffle has 2～8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320404694.6U CN203389641U (en) | 2013-07-05 | 2013-07-05 | Acetonitrile reactor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320404694.6U CN203389641U (en) | 2013-07-05 | 2013-07-05 | Acetonitrile reactor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203389641U true CN203389641U (en) | 2014-01-15 |
Family
ID=49901203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320404694.6U Expired - Lifetime CN203389641U (en) | 2013-07-05 | 2013-07-05 | Acetonitrile reactor structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN203389641U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486780A (en) * | 2015-12-31 | 2016-04-13 | 华测检测认证集团股份有限公司 | Liquid chromatogram precolumn derivatization reactor |
| CN105617964A (en) * | 2014-11-07 | 2016-06-01 | 广东鼎燊科技有限公司 | Electromagnetic induction heating reaction kettle |
| CN106362671A (en) * | 2016-11-11 | 2017-02-01 | 江苏斯尔邦石化有限公司 | Acetonitrile production reactor and preparing method thereof |
-
2013
- 2013-07-05 CN CN201320404694.6U patent/CN203389641U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105617964A (en) * | 2014-11-07 | 2016-06-01 | 广东鼎燊科技有限公司 | Electromagnetic induction heating reaction kettle |
| CN105617964B (en) * | 2014-11-07 | 2018-02-23 | 广东鼎燊科技有限公司 | Electromagnetic induction heating reactor |
| CN105486780A (en) * | 2015-12-31 | 2016-04-13 | 华测检测认证集团股份有限公司 | Liquid chromatogram precolumn derivatization reactor |
| CN106362671A (en) * | 2016-11-11 | 2017-02-01 | 江苏斯尔邦石化有限公司 | Acetonitrile production reactor and preparing method thereof |
| CN106362671B (en) * | 2016-11-11 | 2019-06-21 | 江苏斯尔邦石化有限公司 | A kind of acetonitrile production reactor and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140115 |
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| CX01 | Expiry of patent term |