CN208800019U - A kind of nitration mixture preparation kettle - Google Patents
A kind of nitration mixture preparation kettle Download PDFInfo
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- CN208800019U CN208800019U CN201821323206.8U CN201821323206U CN208800019U CN 208800019 U CN208800019 U CN 208800019U CN 201821323206 U CN201821323206 U CN 201821323206U CN 208800019 U CN208800019 U CN 208800019U
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- kettle
- nitration mixture
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Abstract
The utility model belongs to field of chemical equipment, discloses a kind of nitration mixture preparation kettle.Including preparing kettle, nitric acid import, pipeline distributor, flow-guiding bar, agitating shaft, collet, agitating paddle, material outlet, preparing kettle cover.It prepares kettle and is furnished with blender, prepare in kettle and be furnished with pipeline distributor with the height such as outside collet place, pipeline distributor input end is fixed to be prepared on kettle cover, and the production of pipeline distributor kettle wall direction has isodensity to be distributed micropore, and preparation kettle wall is directed toward equipped with flow-guiding bar in micropore lower end.The preparation kettle shortens nitration mixture preparation cycle, provides accurate nitration mixture proportion to produce, while avoiding decomposing and generating tail gas, and preparation kettle device structure is easy for this, operates conveniently, and maintenance is efficient and convenient, is a kind of green novel device for protecting environment.
Description
Technical field
The utility model belongs to field of chemical equipment, and the utility model relates to a kind of nitration mixture to prepare kettle.
Background technique
Nitrosyl sulfuric acid and other need to need to be mixed with nitric acid with Sulphuric acid in the production process that nitration mixture is raw material
Liquid, the process heat release is larger, if temperature is excessively high, will lead to nitric acid decomposition, and Conventional feed introduction mode is by nitric acid dropping to sulfuric acid
(or in reuse spent acid), is cooled down using collet, and preparation cycle is longer and inevitable hot-spot is decomposed situation and occurred, and decomposes tail
Gas is nitrogen oxides, even if being absorbed using water, still inevitably generate nitrogen-containing oxide tail gas, cause discharge it is not up to standard,
The problems such as environmental pollution.
Utility model content
The purpose of the utility model is to overcome above-mentioned deficiency in the prior art, solve that preparation cycle is too long and hot-spot
Cause nitric acid to decompose the appearance of situation, a kind of nitration mixture preparation kettle is provided；The preparation kettle shortens nitration mixture preparation cycle, provides for production
Accurate nitration mixture proportion, while avoiding decomposing and generating tail gas, preparation kettle device structure is easy for this, operates conveniently, and repairs quick side
It just, is a kind of green beam for protecting environment.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of nitration mixture preparation kettle, including preparation kettle,
Nitric acid import, flow-guiding bar, agitating shaft, collet, agitating paddle, material outlet, prepares kettle cover at pipeline distributor；
Upper end in kettle is prepared in nitration mixture, the nitric acid pipeline distributor with certain pore size, and pipeline are installed along kettle wall is prepared
It is connected between sparger outlets and preparation kettle wall using flow-guiding bar, nitric acid addition is flowed into along sulfuric acid along kettle wall, downflow processes nitre
Acid carries out heat exchange cooling with kettle collet is prepared, and exchanges at kettle wall with sulfuric acid contact heat release and directly progress heat, due to kettle
It is most fast part in kettle that wall, which is stirred speed, avoids hot-spot, decomposes；
Kettle is prepared for preparing nitration mixture, collet exchanges heat, and the effect of pipeline distributor is to be uniformly distributed nitric acid, keeps away
Exempting from part charging excessively causes thermal discharge is larger to decompose, and the effect of flow-guiding bar is: nitric acid being guided into and prepares kettle inner wall, makes nitre
Acid carries out heat exchange cooling in kettle inner wall and collet refrigerant, while nitration mixture preparation is carried out at kettle wall；Collet, which is placed in, to be prepared outside kettle
Wall, there are many selection, such as stainless steels for collet material；Also there are many selections for substance as refrigerant, such as: condensed water, ice water, cryosel
Water；
Further, it prepares kettle and is furnished with blender, blender includes agitating shaft and agitating paddle；It is pressed from both sides preparing in kettle with outside
It is equipped with cricoid pipeline distributor at the height such as set, nitric acid inlet end is connected to pipeline distributor, and the other end is fixed on preparation
On kettle cover, pipeline distributor is equipped with several micropores, and each micropore connects a flow-guiding bar, and flow-guiding bar is formed with pipeline distributor
Certain angle is simultaneously directed toward preparation kettle inner wall；
Further, pipeline distributor diameter be less than prepare kettle internal diameter, make flow-guiding bar trickle along prepare kettle inner wall to
Lower flowing；
Further, flow-guiding bar inside groove one end is connect with pipeline distributor, and the other end is contacted with kettle inner wall is prepared；
Further, the micropore isodensity in pipeline distributor kettle wall direction is distributed micropore；
Further, collet and pipeline distributor are contour.
The feed way of the prior art is that directly acid is added dropwise as do not carried out distribution charging, raw material is because under gravity in kettle
Drop, cannot reach kettle wall, be mixed in the intermediate region of kettle, cause local feeding quantity larger, can not closely connect with collet
Touching, cannot sufficiently cool down using collet；The utility model is used to feed along kettle wall, process for preparation realize material and collet into
Row heat exchange, cooling；It prepares preparation kettle wall in kettle and is stirred fastest and heat exchange efficiency highest.
The utility model has the beneficial effect that a kind of nitration mixture provided by the utility model is prepared compared with prior art
Kettle shortens nitration mixture preparation cycle, avoids process for preparation hot-spot that nitric acid is caused to decompose and occurs, so that nitric acid content be avoided to reduce
Occur etc. unstable situation, provides accurate nitration mixture proportion for production, while avoiding decomposing and generating tail gas, nitrogen oxides is caused to be arranged
Not up to standard and pollution problem is put, is a kind of green beam for protecting environment.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples:
Fig. 1 is the device schematic diagram that a kind of nitration mixture of the utility model prepares kettle.
1. prepare kettle, 2. nitric acid imports, 3. pipeline distributors, 4. flow-guiding bars, 5. agitating shafts, 6. collets, 7. stirrings in figure
Paddle, 8. material outlets, 9. prepare kettle cover.
Specific embodiment
The following examples illustrate the utility model, but is not used in limitation the scope of the utility model.
Embodiment 1
A kind of nitration mixture preparation kettle device, as shown in Figure 1, including preparing kettle 1, nitric acid import 2, pipeline distributor 3, flow-guiding bar
4, agitating shaft 5, collet 6, agitating paddle 7, material outlet 8, preparation kettle cover 9；It prepares kettle 1 and is furnished with blender, blender includes stirring
Axis 5 and agitating paddle 7 are prepared to wait in kettle 1 with outside collet 6 and are furnished with cricoid pipeline distributor 3 at height, cricoid pipeline distribution
3 nitric acid import of device, 2 end is fixed to prepare on kettle cover 9, and cricoid 3 kettle wall direction of pipeline distributor production has isodensity to be distributed micropore,
It is directed toward equipped with flow-guiding bar 4 and prepares 1 wall of kettle in micropore lower end；Pipeline distributor 3 is ring-type, and diameter is small in preparation 1 internal diameter of kettle, pipeline
3 inner wall of distributor is ring-type, and collet 6 and pipeline distributor 3 are contour, and 2 end of nitric acid import on pipeline distributor 3 is fixed on preparation
On kettle cover 9,4 inside groove one end of flow-guiding bar is connect with pipeline distributor 3, and one end is contacted with 1 wall of kettle is prepared, pipeline distribution, 3 kettle wall sides
There is isodensity to be distributed micropore to production, micropore lower end is directed toward equipped with flow-guiding bar 4 and prepares kettle wall.
The nitric acid pipeline distributor 3 with certain pore size is installed along kettle wall is prepared, and pipeline distributor 3 exports and prepares kettle
It is connect between wall using flow-guiding bar, nitric acid addition is flowed into sulfuric acid along kettle wall, and downflow processes nitric acid and preparation kettle collet 6 carry out heat
Exchange cooling.Flow-guiding bar 4 guides nitric acid into kettle wall, and nitric acid carries out heat exchange cooling in kettle wall and 6 refrigerant of collet, while in kettle wall
Place carries out nitration mixture preparation.
Although above having made detailed description to the utility model with generality explanation and specific embodiment,
On the basis of the utility model, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, these modifications or improvements on the basis of without departing from the spirit of the present invention, belong to the utility model and want
Seek the range of protection.
Claims (5)
1. a kind of nitration mixture prepares kettle, characterized in that including forming as follows: preparing kettle (1), nitric acid import (2), pipeline distributor
(3), flow-guiding bar (4), agitating shaft (5), collet (6), agitating paddle (7), material outlet (8) are prepared kettle cover (9)；It prepares in kettle (1)
Equipped with blender, blender includes agitating shaft (5) and agitating paddle (7), prepare in kettle (1) with the height such as outside collet (6) at
Equipped with cricoid pipeline distributor (3), nitric acid import (2) one end is connected to pipeline distributor (3), and the other end is fixed on preparation kettle
It covers on (9), pipeline distributor (3) is equipped with several micropores, and each micropore connects a flow-guiding bar (4), flow-guiding bar (4) and pipeline
Distributor (3), which forms certain angle and is directed toward, prepares kettle (1) inner wall.
2. a kind of nitration mixture according to claim 1 prepares kettle, characterized in that pipeline distributor (3) diameter, which is less than, prepares kettle
(1) internal diameter makes flow-guiding bar (4) trickle flow downward along kettle (1) inner wall is prepared.
3. a kind of nitration mixture according to claim 1 prepares kettle, characterized in that flow-guiding bar (4) inside groove one end and pipeline are distributed
Device (3) connection, the other end are contacted with kettle (1) inner wall is prepared.
4. a kind of nitration mixture according to claim 1 prepares kettle, characterized in that collet (6) and pipeline distributor (3) are contour.
5. a kind of nitration mixture according to claim 1 prepares kettle, characterized in that nitric acid is guided into and prepares kettle (1) by flow-guiding bar (4)
Inner wall, nitric acid carry out heat exchange cooling in kettle inner wall and collet (6) refrigerant, while nitration mixture preparation is carried out at kettle wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821323206.8U CN208800019U (en) | 2018-08-16 | 2018-08-16 | A kind of nitration mixture preparation kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821323206.8U CN208800019U (en) | 2018-08-16 | 2018-08-16 | A kind of nitration mixture preparation kettle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208800019U true CN208800019U (en) | 2019-04-30 |
Family
ID=66235131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821323206.8U Active CN208800019U (en) | 2018-08-16 | 2018-08-16 | A kind of nitration mixture preparation kettle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208800019U (en) |
-
2018
- 2018-08-16 CN CN201821323206.8U patent/CN208800019U/en active Active
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| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20230207 Granted publication date: 20190430 |