CN202044945U - Tower type reactor for nitric acid oxidation reaction - Google Patents
Tower type reactor for nitric acid oxidation reaction Download PDFInfo
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- CN202044945U CN202044945U CN2011201191031U CN201120119103U CN202044945U CN 202044945 U CN202044945 U CN 202044945U CN 2011201191031 U CN2011201191031 U CN 2011201191031U CN 201120119103 U CN201120119103 U CN 201120119103U CN 202044945 U CN202044945 U CN 202044945U
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- nitric acid
- tower body
- oxidation reaction
- acid oxidation
- distributor
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Abstract
The utility model relates to reaction equipment used in the field of chemical engineering, in particular to a tower type reactor for nitric acid oxidation reaction, which comprises a tower body (1), a raw material liquid inlet (4) and a nitric acid liquid inlet (5), wherein the raw material liquid inlet (4) and the nitric acid liquid inlet (5) are arranged on the tower body (1), a plurality of distributors (3) with through holes are fixedly arranged inside the tower body (1), the distributors (3) are arranged at intervals in the height direction of the tower body (1), and a nitric acid material inlet sub opening (8) is arranged on the side wall of the tower body (1). When the technical scheme is adopted, the nitric acid oxidation reaction efficiency can be improved, and the problems of local excessive concentration of nitric acid and severe material backflow mixing in a kettle type reaction system are avoided.
Description
Technical field
The utility model relates to the consersion unit that chemical field uses, and relates in particular to a kind of nitric acid oxidation reaction tower reactor.
Background technology
Oxidation reaction in the chemical industry production process can relate to the reactor of many different structure forms, as still formula, stove formula, tower, tubular type etc., these oxidation reactions have the reaction of single phase, more are gas-solid reaction, gas liquid reaction, liquid-solid reaction, and the phase reaction of gas-solid liquid is also arranged.
Nitric acid is widely used as oxidant, but the reaction of nitric acid oxidation mostly is radical reaction, reacts a large amount of heat releases, and generates gas such as nitrogen oxide in when reaction, is difficult to hold in control, and security incident takes place frequently.For safety, the oxidation reaction of nitric acid is most carries out the still formula intermittent reaction that nitric acid slowly drips for stirring down, and intermittently operated has seriously restricted the production capacity of equipment; The still formula is generally intermittent reaction in addition, and the material back-mixing is serious or the dead band is serious, and the part target product can continue reaction, influences the ultimate yield of product.Multistage tank reactor has been alleviated back-mixing to a certain extent, but the multi-stage reacting kettle floor space is big, and the control difficulty strengthens.
The utility model content
For solving the deficiencies in the prior art, the utility model provides the nitric acid oxidation reaction tower reactor that can improve nitric acid oxidation reaction efficient, has avoided the excessive and serious material back-mixing problem of nitric acid local concentration in the still reaction system.
For achieving the above object, nitric acid oxidation reaction tower reactor of the present utility model, comprise tower body, be arranged on material liquid import and nitric acid liquid import on the tower body, be provided with the distributor of a plurality of band through holes in the tower body internal fixation, described distributor is provided with at interval in the tower body short transverse, is provided with the nitric acid charging branch mouth that each distributor is carried out feed on the tower body sidewall.
As the qualification to aforesaid way, described nitric acid charging divides mouth corresponding with distributor quantity, and is arranged on the tower body of each distributor below.
Further, the through hole on the above-mentioned distributor is at least a in circle, rhombus, the rectangle.
Further, above-mentioned through hole is concentric circles, rectangle or equilateral triangle arrangement on distributor.
In addition, as further qualification, below tower body, be provided with material liquid and nitric acid liquid are carried out well-mixed mixing device aforesaid way.
Wherein, above-mentioned mixing device is made up of circulation fluid outlet, circulating pump and circulation fluid import, and described material liquid and nitric acid liquid are mixed the back under the circulating pump effect, enters in the tower body through circulation fluid outlet and circulation fluid import circulation.
Further, the circulation fluid outlet is arranged on first distributor top of material liquid import top.
In addition, as the another kind of form of aforesaid way, described mixing device is to be arranged on tower body below, to enter air inlet in the pump housing for inert gas.
As the further qualification to aforesaid way, described air inlet is arranged on the tower body of nitric acid liquid import below.
As the further qualification of aforesaid way, described air inlet is identical with the material liquid import.
Adopt technique scheme, its effect is as follows:
1, is provided with distributor a plurality of band through holes, that be provided with at interval in the tower body short transverse in the tower body internal fixation, make nitric acid divide multistage adding, avoided nitric acid local concentration problems of too in the reaction system, and the gas that in reaction, generates, can be up by the through hole on the distributor with mixed liquor, and then reach the purpose of abundant mixed liquor.
2, be provided with below tower body material liquid and nitric acid liquid are carried out well-mixed mixing device, it is more abundant that feed liquid is mixed, and its compact conformation has saved the mechanical agitation process, and operation is safer, and production efficiency is higher.
Description of drawings
Below in conjunction with the drawings and the specific embodiments the utility model is done further to describe in detail:
Fig. 1 is the overall structure schematic diagram of the utility model embodiment one.
Fig. 2 is the overall structure schematic diagram of the utility model embodiment two.
Among the figure: 1, tower body; 2, circulation fluid import; 3, distributor; 4, material liquid import; 5, nitric acid liquid import; 6, circulation fluid outlet; 7, circulating pump; 8, the nitric acid charging divides mouth; 9, air inlet.
The specific embodiment
Embodiment one
By as can be known shown in Figure 1, nitric acid oxidation reaction tower reactor of the present utility model comprises tower body 1, is arranged on material liquid import 4 and nitric acid liquid import 5 on the tower body 1, and the ratio of height to diameter of tower body is 5-30; Be provided with four distributors 3 of being with through holes in tower body 1 internal fixation, distributor 3 is provided with at interval in tower body 1 short transverse, and this is provided with tower body 1 is divided into five sections, and the ratio of height to diameter of each section is 1-10; On tower body 1 sidewall, be provided with the nitric acid charging branch mouth 8 that each distributor 3 is carried out feed, the nitric acid charging divides mouth 8 to be arranged on the tower body 1 of each distributor 3 below, wherein, be positioned at the distributor 3 of below and the nitric acid charging is not set divides mouthfuls 8, directly realize the charging of nitric acid liquid by nitric acid liquid import 5.Through hole on the distributor 3 is a rhombus, and the through hole of each rhombus is equilateral triangle and arranges, and it is pointed out that at this shape of through holes on each distributor 3 can be identical, also can be by difform through hole through multi-form arrangement mixing use.
Below tower body 1, be provided with material liquid and nitric acid liquid are carried out well-mixed mixing device, mixing device is made up of circulation fluid outlet 6, circulating pump 7 and circulation fluid import 2, material liquid and nitric acid liquid are mixed the back under circulating pump 7 effects, enter in the tower body 1 through circulation fluid outlet 6 and circulation fluid import 2 circulations.Circulation fluid outlet 6 is arranged on first distributor 3 tops of material liquid import 4 tops.Circulation fluid import 2 can be adopted same import with material liquid import 4.Each above-mentioned liquor inlet can adopt nozzle type to realize charging, also can adopt the ring pipe form.
In use, main material enters in the reaction tower by material liquid import 4, and nitric acid liquid import 5 simultaneously adds nitric acid, and main material and nitric acid reaction by distributor 3 control nitric acid and main material rational proportion at different levels, reach certain conversion ratio.When feed liquid was passed through each distributor, the gas that reaction generates mixes high speed to be passed through with feed liquid, makes it to mix, and guarantees that feed liquid is evenly distributed on tower section, makes safe and efficient the carrying out of reaction.
Embodiment two
Present embodiment and embodiment one difference are that mixing device is to be arranged on the tower body 1 below body, to enter air inlet 9 in the tower body 1 for inert gas.In use, in tower body 1, feed inert gas, to promote the abundant mixing of material liquid by air inlet 9.
Claims (10)
1. nitric acid oxidation reaction tower reactor, comprise tower body (1), be arranged on material liquid import (4) and nitric acid liquid import (5) on the tower body (1), it is characterized in that: the distributor (3) that is provided with a plurality of band through holes in tower body (1) internal fixation, described distributor (3) is provided with at interval in tower body (1) short transverse, is provided with the nitric acid charging and divides mouthful (8) on tower body (1) sidewall.
2. nitric acid oxidation reaction tower reactor according to claim 1 is characterized in that: described nitric acid charging divides mouthful (8) corresponding with distributor (3) quantity, and is arranged on the tower body (1) of each distributor (3) below.
3. nitric acid oxidation reaction tower reactor according to claim 1 and 2 is characterized in that: the through hole on the described distributor (3) is at least a in circle, rhombus, the rectangle.
4. nitric acid oxidation reaction tower reactor according to claim 3 is characterized in that: described through hole is concentric circles, rectangle or equilateral triangle and arranges on distributor (3).
5. nitric acid oxidation reaction tower reactor according to claim 1 and 2 is characterized in that: be provided with in tower body (1) below material liquid and nitric acid liquid are carried out well-mixed mixing device.
6. nitric acid oxidation reaction tower reactor according to claim 5, it is characterized in that: described mixing device is made up of circulation fluid outlet (6), circulating pump (7) and circulation fluid import (2), described material liquid and nitric acid liquid are mixed the back under circulating pump (7) effect, enter in the tower body (1) through circulation fluid outlet (6) and circulation fluid import (2) circulation.
7. nitric acid oxidation reaction tower reactor according to claim 6 is characterized in that: described circulation fluid outlet (6) is arranged on first distributor (3) top of material liquid import (4) top.
8. nitric acid oxidation reaction tower reactor according to claim 5 is characterized in that: described mixing device is for being arranged on the body of tower body (1) below, entering the interior air inlet (9) of tower body (1) for inert gas.
9. nitric acid oxidation reaction tower reactor according to claim 8 is characterized in that: described air inlet (9) is arranged on the tower body (1) of nitric acid liquid import (5) below.
10. nitric acid oxidation reaction tower reactor according to claim 8 is characterized in that: described air inlet (9) is identical with material liquid import (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201191031U CN202044945U (en) | 2011-04-21 | 2011-04-21 | Tower type reactor for nitric acid oxidation reaction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201191031U CN202044945U (en) | 2011-04-21 | 2011-04-21 | Tower type reactor for nitric acid oxidation reaction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202044945U true CN202044945U (en) | 2011-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201191031U Expired - Lifetime CN202044945U (en) | 2011-04-21 | 2011-04-21 | Tower type reactor for nitric acid oxidation reaction |
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| CN (1) | CN202044945U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105080432A (en) * | 2015-07-27 | 2015-11-25 | 河北科技大学 | Sodium chloroacetate continuous cyanation tower-type reactor and reaction method thereof |
| CN105080447A (en) * | 2015-07-27 | 2015-11-25 | 河北科技大学 | Tower type reactor for organic acid neutralization and reaction method thereof |
| CN107739325A (en) * | 2017-09-22 | 2018-02-27 | 山东尚舜化工有限公司 | A kind of equipment and technique of continuous production vulcanization of rubber accelerant disulfide tetra methylthiuram |
-
2011
- 2011-04-21 CN CN2011201191031U patent/CN202044945U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105080432A (en) * | 2015-07-27 | 2015-11-25 | 河北科技大学 | Sodium chloroacetate continuous cyanation tower-type reactor and reaction method thereof |
| CN105080447A (en) * | 2015-07-27 | 2015-11-25 | 河北科技大学 | Tower type reactor for organic acid neutralization and reaction method thereof |
| CN107739325A (en) * | 2017-09-22 | 2018-02-27 | 山东尚舜化工有限公司 | A kind of equipment and technique of continuous production vulcanization of rubber accelerant disulfide tetra methylthiuram |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191031 Address after: 325000 floor 4, building a, Xinyi building, Lucheng District, Wenzhou City, Zhejiang Province Co-patentee after: Hebei University of Science and Technology Patentee after: Yan Hengxi Address before: Luancheng County, Hebei province Fengze Street 051430 Shijiazhuang City No. 58 Co-patentee before: Hebei University of Science and Technology Patentee before: Shijiazhuang Xinyu Sanyang Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111123 |