CN209501651U - A kind of methenamine synthesis reactor - Google Patents
A kind of methenamine synthesis reactor Download PDFInfo
- Publication number
- CN209501651U CN209501651U CN201920075407.9U CN201920075407U CN209501651U CN 209501651 U CN209501651 U CN 209501651U CN 201920075407 U CN201920075407 U CN 201920075407U CN 209501651 U CN209501651 U CN 209501651U
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- CN
- China
- Prior art keywords
- reactor
- pipe
- formaldehyde
- methenamine
- toroidal nozzle
- Prior art date
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- 235000010299 hexamethylene tetramine Nutrition 0.000 title claims abstract description 17
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 229960004011 methenamine Drugs 0.000 title claims abstract description 17
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 12
- 238000003786 synthesis reaction Methods 0.000 title claims abstract description 12
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 73
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims abstract description 71
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 37
- 239000007921 spray Substances 0.000 claims abstract description 21
- 239000011229 interlayer Substances 0.000 claims abstract description 11
- 239000012452 mother liquor Substances 0.000 claims abstract description 11
- 238000004064 recycling Methods 0.000 claims abstract description 10
- 239000010413 mother solution Substances 0.000 claims abstract description 9
- 239000010410 layer Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 20
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 210000004262 dental pulp cavity Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000834 fixative Substances 0.000 description 1
- 230000000855 fungicidal effect Effects 0.000 description 1
- 239000000417 fungicide Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model discloses a kind of methenamine synthesis reactor, including reactor, Recycling Mother Solution pipeline is connected on the reactor, top cover is arranged in the reactor top, reactor top sandwich establishment, gas passage is formed between the interlayer and reactor wall, the escape pipe being connected to the gas passage is set on the top cover, ammonia pipe is arranged in the reactor top, the ammonia pipe connects criss-cross spray ammonia pipe, formaldehyde pipe is arranged in the reactor lower part, the formaldehyde pipe is connected to two toroidal nozzles one and toroidal nozzle two being arranged concentrically, multiple spray heads are respectively provided on the toroidal nozzle one and toroidal nozzle two and spray ammonia pipe.The reactor not only can ensure that ammonia and formaldehyde supply are uniform, moreover it is possible to prevent mother liquor from entering gas passage, increase product yield.
Description
Technical field
The utility model relates to methenamine preparation technical fields, more particularly, to a kind of methenamine synthesis reactor.
Background technique
Methenamine also known as hexa are a kind of chemical products, are the fixatives of resin, plastics or precoated sand,
Or it is used as fungicide.The preparation method of methenamine is that formaldehyde and ammonia are passed through reactor the most commonly used is vapor phase method
It is synthesized, the methenamine solution of generation obtains product using the processes such as crystallization, dry, and the steam in reaction kettle is through gas phase
Channel is recycled.
Chinese patent literature (CN208275387U) discloses a kind of methenamine production flow reactor, the utility model
By the ammonia flusher of setting, ammonia is supplied from top to bottom, so that ammonia generates the formaldehyde gas supplied by lower section
There is local ammonia excess, guarantees sufficiently reaction, gas is moved up in mother liquor by buoyancy, through overmulling in package
It is sufficiently mixed in its narrow lumen when closing pipe, and it is smaller bubble that air pocket, which is squeezed broken, so that reaction gas is sufficiently mixed,
Overcome the problems, such as to be unable to fully mixing because of gaseous volatilization caused by acutely boiling, improves production efficiency.But the reactor is not
It is avoided that the problem of steam takes away partial mother liquid.
Utility model content
In view of this, the purpose of this utility model is in view of the deficiencies of the prior art, it is anti-to provide a kind of methenamine synthesis
Device is answered, not only can ensure that ammonia and formaldehyde supply are uniform, moreover it is possible to prevent mother liquor from entering gas passage, increase product yield.
In order to achieve the above objectives, the utility model uses following technical scheme:
A kind of methenamine synthesis reactor, including reactor are connected to Recycling Mother Solution pipeline on the reactor, described anti-
Answer device top that top cover is set, reactor top sandwich establishment forms gas passage between the interlayer and reactor wall,
The escape pipe being connected to the gas passage is set on the top cover, and ammonia pipe, the ammonia pipe is arranged in the reactor top
Criss-cross spray ammonia pipe is connected, formaldehyde pipe is arranged in the reactor lower part, and the formaldehyde pipe is connected to two annulars being arranged concentrically
Multiple spray heads are respectively provided on jet pipe one and toroidal nozzle two, the toroidal nozzle one and toroidal nozzle two and spray ammonia pipe.
Further, cooler is set on the Recycling Mother Solution pipeline.
Further, the formaldehyde pipe is connected to toroidal nozzle one, leads at two tangent line of the toroidal nozzle one and toroidal nozzle
Piping connection.
Further, the interlayer is fixed on reactor wall by ring support, and through-hole is arranged on the ring support.
The beneficial effects of the utility model are:
1, the utility model discloses a kind of methenamine synthesis reactor, wherein wherein reactor top sandwich establishment, folder
Layer is socketed in inside reactor, and the inner wall of reactor is fixed on by ring support, forms gas between interlayer and reactor wall
The escape pipe being connected to gas passage is arranged on top cover for body channel, as the gas vent of reactor, when gas recycles,
Under the inhibition of interlayer, it can be avoided mother liquor and enter gas passage, improve product yield.
2, spray ammonia pipe is two interconnected root canal roads, and wherein ammonia pipe is connected to the center of criss-cross spray ammonia pipe, is used
In spray ammonia, it can ensure that spray ammonia is uniform.Formaldehyde pipe is connected to toroidal nozzle one, passes through pipe at two tangent line of toroidal nozzle one and toroidal nozzle
Road connection, the connection type will not reduce the flow of formaldehyde because of the extension of pipeline, it can be ensured that formaldehyde is evenly supplied, it is ensured that anti-
Answer effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment 1；
Fig. 2 is the structural schematic diagram that ammonia pipe is sprayed in Fig. 1；
Fig. 3 is the structural schematic diagram of formaldehyde pipe in Fig. 1.
In figure: 1- reactor, 2- Recycling Mother Solution pipeline, 3- top cover, 4- interlayer, 5- gas passage, 6- escape pipe, 7- ammonia
Pipe, 8- spray ammonia pipe, 9- formaldehyde pipe, 10- toroidal nozzle one, 11- toroidal nozzle two, 12- spray head, 13- pipeline, 14- cooler,
15- through-hole, 16- ring support.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and examples.
Embodiment 1
As shown in Figure 1-3, a kind of methenamine synthesis reactor, including reactor 1, Recycling Mother Solution is connected on reactor 1
Pipeline 2, wherein the both ends of Recycling Mother Solution pipeline 2 are respectively communicated with the top and bottom of reactor 1, are arranged on Recycling Mother Solution pipeline 2
There is cooler 14, wherein cooler 14 is the device for being placed with cold water, cools down for the mother liquor in reactor 1, helps to give birth to
The continuous-stable of production.
Top cover 3 is arranged in 1 top of reactor, and wherein 1 top sandwich establishment 4 of reactor, interlayer 4 are socketed in inside reactor 1,
It is fixed on the inner wall of reactor 1 by ring support 16, is wherein provided with through-hole 15 on ring support 16, does not influence the stream of gas
It is logical；Gas passage 5 is formed between 1 inner wall of interlayer 4 and reactor, and the escape pipe 6 being connected to gas passage 5 is set on top cover 3, is made
For the gas vent of reactor.
Ammonia pipe 7 is arranged in 1 top of reactor, and wherein ammonia pipe 7 connects criss-cross spray ammonia pipe 8, specific structure such as Fig. 2 institute
Show, spray ammonia pipe 8 is two interconnected root canal roads, and wherein ammonia pipe 7 is connected to the center of criss-cross spray ammonia pipe 8, for spraying
Ammonia.
Formaldehyde pipe 9 is arranged in 1 lower part of reactor, and wherein formaldehyde pipe 9 is connected to two toroidal nozzles 1 and ring being arranged concentrically
Shape jet pipe 2 11, specifically: formaldehyde pipe 9 is connected to toroidal nozzle 1, leads at 2 11 tangent line of toroidal nozzle 1 and toroidal nozzle
Piping 13 is connected to, which will not reduce the flow of formaldehyde because of the extension of pipeline, it can be ensured that and formaldehyde is evenly supplied,
Ensure reaction effect.
Multiple spray heads 12 are respectively provided on toroidal nozzle 1 and toroidal nozzle 2 11 and spray ammonia pipe 8.
When using the utility model, the formaldehyde that the ammonia and formaldehyde pipe 9 that spray ammonia pipe 8 is evenly supplied are evenly supplied is in mother liquor
Middle generation aminating reaction cools down to mother liquor by the cooler 14 on Recycling Mother Solution pipeline 2, and wherein 4 lower end of interlayer is protruded into
Into mother liquor, when carrying out gas recycling, gas is carried some mother liquors secretly and successively via through holes 15, gas passage 5 and is taken out from escape pipe 6
Out during reactor 1, under the action of interlayer 4, mother liquor will not be entrained into gas, to be avoided that mother liquor stream is lost, be mentioned
High product yield.
Finally, it is stated that above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, this field
Other modifications or equivalent replacement that those of ordinary skill makes the technical solution of the utility model, it is practical without departing from this
The spirit and scope of new technique scheme should all cover in the scope of the claims of the utility model.
Claims (4)
1. a kind of methenamine synthesis reactor, it is characterised in that: including reactor (1), be connected to mother liquor on the reactor (1)
Top cover (3) are arranged in circulating line (2), reactor (1) top, reactor (1) the top sandwich establishment (4), the folder
Gas passage (5) are formed between layer (4) and reactor (1) inner wall, setting connects with the gas passage (5) on the top cover (3)
Ammonia pipe (7) are arranged in logical escape pipe (6), reactor (1) top, and the ammonia pipe (7) connects criss-cross spray ammonia pipe
(8), reactor (1) lower part setting formaldehyde pipe (9), the formaldehyde pipe (9) are connected to two toroidal nozzles one being arranged concentrically
(10) and in toroidal nozzle two (11), the toroidal nozzle one (10) and toroidal nozzle two (11) and spray ammonia pipe (8) it is respectively provided with more
A spray head (12).
2. a kind of methenamine synthesis reactor according to claim 1, it is characterised in that: the Recycling Mother Solution pipeline
(2) cooler (14) are set on.
3. a kind of methenamine synthesis reactor according to claim 1, it is characterised in that: formaldehyde pipe (9) connection
It is connected at toroidal nozzle one (10), the toroidal nozzle one (10) and toroidal nozzle two (11) tangent line by pipeline (13).
4. a kind of methenamine synthesis reactor according to claim 1, it is characterised in that: the interlayer (4) passes through ring
Shape bracket (16) is fixed on reactor (1) inner wall, and through-hole (15) are arranged on the ring support (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920075407.9U CN209501651U (en) | 2019-01-17 | 2019-01-17 | A kind of methenamine synthesis reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920075407.9U CN209501651U (en) | 2019-01-17 | 2019-01-17 | A kind of methenamine synthesis reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209501651U true CN209501651U (en) | 2019-10-18 |
Family
ID=68201078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920075407.9U Active CN209501651U (en) | 2019-01-17 | 2019-01-17 | A kind of methenamine synthesis reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209501651U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023123524A1 (en) * | 2021-12-28 | 2023-07-06 | 山东天成万丰投资有限公司 | Urotropine production device with automatic ph adjustment function |
-
2019
- 2019-01-17 CN CN201920075407.9U patent/CN209501651U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023123524A1 (en) * | 2021-12-28 | 2023-07-06 | 山东天成万丰投资有限公司 | Urotropine production device with automatic ph adjustment function |
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