CN209049359U - Chlorine gas distributor is used in the preparation of alpha-chloro acetic acid - Google Patents
Chlorine gas distributor is used in the preparation of alpha-chloro acetic acid Download PDFInfo
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- CN209049359U CN209049359U CN201821775002.8U CN201821775002U CN209049359U CN 209049359 U CN209049359 U CN 209049359U CN 201821775002 U CN201821775002 U CN 201821775002U CN 209049359 U CN209049359 U CN 209049359U
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Abstract
The utility model provides a kind of alpha-chloro acetic acid preparation chlorine gas distributor, it is related to chemical equipment technical field, including the shaft pipe that is vertically arranged and with hollow structure and multiple paddles for being connected with the shaft pipe, the paddle is arranged along shaft length of tube direction, and the quantity of the stomata on the paddle of the paddle equipped with equally distributed stomata and from bottom to top is successively reduced；Alpha-chloro acetic acid preparation provided by the utility model can be such that chlorine sufficiently reacts with reaction solution with chlorine gas distributor, improve the absorptivity of chlorine, while prevent reaction solution and chlorine overreaction, generate byproduct of reaction.
Description
Technical field
The utility model belongs to chemical equipment technical field, is to be related to a kind of alpha-chloro acetic acid preparation use more specifically
Chlorine gas distributor.
Background technique
It is prepared in alpha-chloro acetic acid technique by chlorine and glacial acetic acid at present, chlorine is passed directly into reaction raw materials, and anti-
It answers the contact process of liquid uncontrollable, leads to following two problem: first is that chlorine can not come into full contact with reaction solution, chlorine absorption amount
Few, consumption is high；Second is that some reaction solutions and chlorine excessive contact, generate by-product dichloroacetic acid.In order to solve first problem,
It needs to increase auxiliary reactor to absorb extra chlorine, increases equipment investment, final unabsorbed chlorine is discharged with tail gas, makes
At pollution.
Utility model content
The purpose of this utility model is to provide a kind of alpha-chloro acetic acid preparation chlorine gas distributors, it is intended to solve above-mentioned existing
There is the problems in technology, improve chlorine absorption rate, reduces byproduct of reaction.
In order to achieve the above purposes, the technical solution adopted by the utility model is: provides a kind of alpha-chloro acetic acid preparation chlorine
Gas distributor, including the shaft pipe that is vertically arranged and with hollow structure and multiple paddles for being connected with the shaft pipe,
The paddle is arranged along shaft length of tube direction, and the paddle is equipped with equally distributed stomata and from bottom to top
The quantity of the stomata on the paddle is successively reduced.
Further, the quantity of the paddle is four, and for height, successively raised level-one paddle, second level are stirred
Leaf, three-level paddle and level Four paddle.
Further, the level-one paddle is the vent disc for being connected to the hollow round pie of shaft pipe lower end, institute
The upper surface center for stating vent disc is connected with the shaft pipe, and the stomata is set to the lower surface of the vent disc.
Further, the stomata along the lower surface radially arrangement, in same radius described in
Stomata group is in a row, and the stomata has 10 to 15 rows.
Further, the second level paddle, three-level paddle and level Four paddle respectively include multiple hollow snorkels,
Other end closing that the snorkel on the same paddle is in the same plane and one end is connected with the shaft pipe,
The stomata is arranged along the snorkel length direction, and the second level paddle, three-level paddle and level Four paddle respectively include
Snorkel quantity be 6 to 10.
Further, the equal length of the radius of the vent disc and the snorkel, every gas vent on the vent disc
Center away from for 30mm to 50mm, the center of the venthole on the second level paddle away from greater than 50mm and to be not more than 100mm,
The center of venthole on the three-level paddle is logical on the level Four paddle away from greater than 100mm and to be not more than 150mm
The center of stomata is away from for greater than 150mm and no more than 200mm.
Further, the distance between inner wall of the closed end of the snorkel and reaction vessel is 10cm to 50cm, institute
Stating the distance between the lower surface of vent disc and the bottom surface of the reaction vessel is 20cm to 50cm, and the level Four paddle is located at
The lower section of reaction solution liquid level and be 60cm to 100cm, level-one stirring at a distance from the reaction solution liquid level in reaction vessel
Height difference between leaf, second level paddle, three-level paddle and level Four paddle is equal.
Further, the air vent openings direction on the snorkel is the axis and perpendicular of the stomata obliquely
Between angle be 0 degree to 45 degree.
Further, the aperture of the stomata is 5mm to 15mm.
The beneficial effect of alpha-chloro acetic acid preparation chlorine gas distributor provided by the utility model is: the utility model α-
Monochloroacetic acid preparation with chlorine gas distributor in the height direction along shaft pipe be equipped with multiple paddles, can guarantee chlorine with react
Liquid comes into full contact with, and improves the absorptivity of chlorine；The equal qi-emitting hole being arranged on paddle simultaneously with the increase of paddle height and
Quantity is reduced, and can prevent high-rise reaction solution and chlorine overreaction from generating byproduct of reaction.
Detailed description of the invention
Fig. 1 is that alpha-chloro acetic acid preparation provided by the embodiment of the utility model is set in reaction vessel with chlorine gas distributor
Schematic diagram；
When Fig. 2 is that alpha-chloro acetic acid preparation chlorine gas distributor provided by the embodiment of the utility model includes four paddles
Structural schematic diagram；
Fig. 3 is uniformly distributed leachy vent disc lower surface schematic diagram provided by the embodiment of the utility model；
Fig. 4 is second level paddle structural schematic diagram provided by the embodiment of the utility model；
Fig. 5 is three-level paddle structural schematic diagram provided by the embodiment of the utility model；
Fig. 6 is level Four paddle structural schematic diagram provided by the embodiment of the utility model；
Fig. 7 is the cross-sectional view on snorkel at stomata；
Fig. 8 is alpha-chloro acetic acid provided by the embodiment of the utility model preparation chlorine gas distributor relative dimensions schematic diagram.
In figure: 1, alpha-chloro acetic acid preparation chlorine gas distributor, 2, reaction vessel, 3, agitating device, 4, gas source pipe, 11,
Paddle, 12, shaft pipe, 13, snorkel, 14, stomata, 21, reaction solution liquid level, 111, level-one paddle, 112, second level stirring
Leaf, 113, three-level paddle, 114, level Four paddle.
Specific embodiment
In order to which technical problem to be solved in the utility model, technical solution and beneficial effect is more clearly understood, with
Lower combination accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific reality described herein
It applies example to be only used to explain the utility model, is not used to limit the utility model.
As shown in Figure 1, existing be illustrated alpha-chloro acetic acid preparation provided by the utility model with chlorine gas distributor.α-chlorine
For acetic acid preparation chlorine gas distributor 1, including the shaft pipe 12 being vertically arranged and there is hollow structure and be connected with shaft pipe 12
Logical multiple paddles 11, paddle 11 are arranged along 12 length direction of shaft pipe, and paddle 11 is equipped with equally distributed stomata
And the quantity of the stomata on paddle 11 from bottom to top is successively reduced.Reaction vessel 2, agitating device 3 and gas source pipe 4 are existing
Conventional arrangement in technology.Shaft pipe 12 and agitating device 3 are tightly connected, and can be rotated under the driving of agitating device 3；Even
The gas source pipe 4 for connecing chlorine gas source is arranged in shaft pipe 12 and the bottom end of shaft pipe 12 is protruded into its open end, stirs in level-one
In place of leaf 111 is connected with shaft pipe 12.Gas source pipe 4 connect place with the top of shaft pipe 12 and makees encapsulation process.Shaft pipe 12
It is all to be tightly connected that place is connect with agitating device 3 and gas source pipe 4, so the chlorine being passed through by gas source pipe 4 can only be stirred from being set to
Mix the stomata pass-out on leaf 11.There is certain pressure, to guarantee the sky that chlorine can be hollow full of paddle 11 in gas source pipe 4
Between, and chlorine is sprayed from stomata by this pressure, to be reacted with the reaction solution in reaction vessel 2.In gas source pipe 4
Pressure value is set as different numerical value with the size of reaction vessel and the difference of reaction solution liquid level, specifically, this pressure value
It can be 0.1 megapascal.When being reacted, paddle 11 rotates under the drive of shaft pipe 12, sprays from the stomata of paddle 11
Chlorine rise in the shape of a spiral and contact and react with reaction solution.
The beneficial effect of alpha-chloro acetic acid preparation chlorine gas distributor provided by the utility model is, including is evenly equipped with gas
Multiple paddles 11 in hole, can be such that chlorine uniformly sprays from multiple planes, to guarantee the reaction in reaction vessel everywhere
Liquid can come into full contact with chlorine, increase the absorptivity of chlorine；Meanwhile the stomata quantity on paddle 11 from bottom to top
The reaction solution and chlorine overreaction that can prevent upper layer are successively reduced, to prevent the generation of byproduct of reaction.Upper layer reaction
Liquid is with the reason of chlorine overreaction, sprays from lower layer's paddle 11 but the chlorine for having neither part nor lot in reaction can move to upper layer and react
In liquid, cause the chlorine in the reaction solution of upper layer excessive, so as to cause the generation of byproduct of reaction, reduces on upper layer paddle 11
Stomata quantity can prevent the generation of the problem.
Further, as shown in Fig. 2, as alpha-chloro acetic acid preparation chlorine gas distributor provided by the utility model one
Kind specific embodiment, the quantity of paddle 11 are four, are height successively raised level-one paddle 111, second level paddle
112, three-level paddle 113 and level Four paddle 114.In the case that pressure in gas source pipe 4 is certain, the quantity of paddle 11
It is excessive excessively to will lead to chlorine, overreaction is caused to generate byproduct of reaction, the quantity of paddle 11 is very few will lead to chlorine without
Method comes into full contact with reaction solution, leads to the reduction of chlorine absorption rate.11 quantity of paddle, which is four, can guarantee amount of chlorine appropriateness, both
Chlorine can be made sufficiently to react, and be unlikely to that overreact is made to generate byproduct of reaction.
Further, a kind of specific implementation as alpha-chloro acetic acid preparation chlorine gas distributor provided by the utility model
Mode, level-one paddle 111 are the vent disc for being connected to the hollow round pie of 12 lower end of shaft pipe, the upper surface center of vent disc
It is connected with shaft pipe 12, stomata is set to the lower surface of vent disc, is illustrated in figure 3 and sets showing for leachy vent disc lower surface
It is intended to, the small circle in figure indicates stomata.Gas source pipe 4 is connected at the center of vent disc upper surface, and gas source pipe 4 and vent disc
Hollow space be connected.The upper surface of vent disc and side-closed, only lower surface are equipped with stomata.Level-one paddle 111
In bottom, the stomata quantity for needing to be arranged is most.The lower surface area of vent disc is larger, and enough stomatas can be arranged.
Further, as shown in figure 3, as alpha-chloro acetic acid preparation chlorine gas distributor provided by the utility model one
Kind of specific embodiment, radially arrangement of the stomata along the lower surface, stomata group in same radius
In a row, the stomata has 10 to 15 rows.The angle of adjacent two gas vent is identical, guarantees that stomata is uniformly arranged.Stomata is evenly distributed with energy
Enough guarantee that chlorine can be interspersed among uniformly in reaction solution after stomata ejection, guarantees reaction solution coming into full contact in chlorine.
Further, as shown in Figs. 4-6, as alpha-chloro acetic acid preparation chlorine gas distributor provided by the utility model
A kind of specific embodiment, second level paddle 112, three-level paddle 113 and level Four paddle 114 respectively include it is multiple hollow
Snorkel 13, another end seal that the snorkel 13 on same paddle is in the same plane and one end is connected with shaft pipe 12
It closes, stomata is arranged along 13 length direction of snorkel, the second level paddle 112, three-level paddle 113 and level Four paddle 114
The quantity for the snorkel 13 for respectively including is 6 to 10, and the small circle in figure indicates stomata.The quantity and reaction vessel of snorkel 13
2 size matching, to guarantee chlorine ventilatory capacity appropriateness.The quantity of when being relatively large in diameter of reaction vessel 2, snorkel 13 is also more,
When the diameter of reaction vessel 2 is smaller, the quantity of snorkel 13 is also less.The quantity of snorkel 13 is generally less than stomata on vent disc
The quantity of row, to guarantee that the quantity of stomata from bottom to top gradually decreases.In general, the corresponding reaction of 6 to 10 snorkels 13
The diameter range of container 2 is 2 meters to 3.5 meters.
Further, as shown in Fig. 3 to 6, as alpha-chloro acetic acid preparation chlorine gas distributor provided by the utility model
A kind of specific embodiment, the equal length of the radius of vent disc and snorkel 13, the center of every gas vent is away from S on vent disc
For 30mm to 50mm, the center of the venthole on second level paddle 112 is greater than 50mm and to be not more than 100mm away from X, three-level stirring
The center of venthole on leaf 113 is greater than 100mm and to be not more than 150mm away from Y, in the venthole on level Four paddle 114
The heart is greater than 150mm and to be not more than 200mm away from Z.Vent disc radius and 13 equal length of snorkel, and stomata center is away from by second level
Paddle 112 to level Four paddle 114 is sequentially increased, and is acted on to guarantee that the quantity of stomata from bottom to top gradually decreases.In meanwhile
The volume positive correlation of size of the heart away from S, X, Y and Z and reaction vessel 2 matches, i.e. the volume of reaction vessel 2 is bigger, center away from S,
X, Y and Z are bigger, and the volume of reaction vessel 2 is smaller, and center is smaller away from S, X, Y and Z.
Further, as shown in figure 8, as alpha-chloro acetic acid preparation chlorine gas distributor provided by the utility model one
Kind specific embodiment, closed end and the distance between the inner wall of reaction vessel 2 C of snorkel 13 are 10cm to 50cm, ventilation
The distance between the lower surface of disk and the bottom surface of reaction vessel 2 B are 20cm to 50cm, and level Four paddle 114 is located at reaction vessel 2
The lower section of middle reaction solution liquid level 21 and with 21 distance A of reaction solution liquid level be 60cm to 100cm, level-one paddle 111, second level are stirred
The height difference mixed between leaf 112, three-level paddle 113 and level Four paddle 114 is equal.Above-mentioned setting can make stomata to greatest extent
Be distributed in reaction solution, it is ensured that reaction solution comes into full contact with chlorine.
Further, as shown in fig. 7, as alpha-chloro acetic acid preparation chlorine gas distributor provided by the utility model one
Specific embodiment is planted, 14 opening direction of stomata on snorkel 13 is obliquely, between the axis and perpendicular of stomata 14
Angle M is 0 degree to 45 degree.When the inclined direction of stomata 14 is identical as mixing direction, the opposite flow direction of reaction solution and chlorine from
The direction sprayed in stomata 14 on the contrary, so as to aggravate mixing effect of the chlorine in reaction solution, makes chlorine to a certain extent
Contact of the gas with reaction solution is more abundant；When the inclined direction of stomata 14 is opposite with mixing direction, the opposite flow direction of reaction solution
The direction sprayed from stomata 14 with chlorine is identical to a certain extent, so as to weaken stirring effect of the chlorine in reaction solution
Fruit can reduce the exposure level of chlorine and reaction solution to a certain extent.In practical applications, can change according to the actual situation
Mixing direction, so that the exposure level of chlorine and reaction solution be made to reinforce or weaken.
Further, as shown in fig. 7, as alpha-chloro acetic acid preparation chlorine gas distributor provided by the utility model one
Kind specific embodiment, the aperture N of stomata 14 are 5mm to 15mm.The size of stomata 14 and the volume of reaction vessel 2 match,
To guarantee chlorine ventilatory capacity appropriateness.In general, the volume of the corresponding reaction vessel 2 in the aperture of 5mm to 15mm rises to for 6300
25000 liters.
In a specific embodiment, the volume of reaction vessel 2 is 22000 liters, and the diameter of reaction vessel 2 is 2.6m high
Degree is 4.7m, and vent disc radius and ventilation length of tube are 90cm (the distance between the inner wall of snorkel closed end and reaction vessel 2
C is 40cm), the stomata number of rows amount on vent disc is 12, second level paddle 112, three-level paddle 113 and level Four paddle
Snorkel quantity on 114 is 8, and the center of stomata is 50mm away from S on vent disc, on the snorkel 13 of second level paddle 112
Stomata center away from X be 70mm, the stomata center on the snorkel 13 of three-level paddle 113 is 110mm, level Four paddle away from Y
Stomata center on 114 snorkel 13 is 160mm away from Z, and the distance between bottom surface of vent disc and reaction vessel 2 B is 30mm,
Distance A of the level Four paddle 114 away from liquid level 21 is 1 meter, and the diameter N of stomata 14 is 15mm, and angle M is 45 degree；In reaction vessel 2
Middle addition glacial acetic acid 640Kg and aceticanhydride 61Kg is uniformly mixed and is warming up to 110 DEG C, and prepared by the alpha-chloro acetic acid in the present embodiment uses
Chlorine gas distributor is passed through chlorine 840Kg, mixing speed 80r/min, reacts 18 hours, is prepared containing monoxone and dichloro
The reaction product mixture of acetic acid；Cooling is carried out to above-mentioned reaction product mixture and centrifugal treating finally obtains alpha-chloro acetic acid；It takes
The alpha-chloro acetic acid being prepared is detected, and the content of alpha-chloro acetic acid is 99%, and the content of dichloroacetic acid is 0.5%, chlorine
Aspiration yield 89.3%.
The alpha-chloro acetic acid preparation of the application is equipped with multiple paddles along shaft pipe in the height direction with chlorine gas distributor,
It can guarantee that chlorine comes into full contact with reaction solution, improve the absorptivity of chlorine；The equal qi-emitting hole being arranged on paddle simultaneously with
The increase of paddle height and quantity is reduced, can prevent high-rise reaction solution and chlorine overreaction from generating byproduct of reaction；It is logical
The quantity of tracheae, stomata center away from being matched with hole diameter with the volume of reaction vessel, guarantee the amount of chlorine being passed through appropriateness；Incline
Stomata and the mixing direction cooperation being tiltedly arranged can reinforce or weaken to a certain extent the stirring extent of chlorine and reaction solution, thus
Adjust the extent of reaction of chlorine and reaction solution.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (10)
1. alpha-chloro acetic acid preparation chlorine gas distributor, it is characterised in that: including the shaft pipe being vertically arranged and there is hollow knot
Structure and the multiple paddles being connected with the shaft pipe, the paddle is arranged along shaft length of tube direction, described to stir
The quantity for mixing the stomata on the paddle of leaf equipped with equally distributed stomata and from bottom to top is successively reduced.
2. alpha-chloro acetic acid preparation chlorine gas distributor as described in claim 1, it is characterised in that: the quantity of the paddle
It is four, is height successively raised level-one paddle, second level paddle, three-level paddle and level Four paddle.
3. alpha-chloro acetic acid as claimed in claim 2 preparation chlorine gas distributor, it is characterised in that: the level-one paddle is
It is connected to the vent disc of the hollow round pie of shaft pipe lower end, the upper surface center of the vent disc and the shaft pipe phase
Connection, the stomata are set to the lower surface of the vent disc.
4. alpha-chloro acetic acid as claimed in claim 3 preparation chlorine gas distributor, it is characterised in that: the stomata is under described
The radially arrangement on surface, the stomata group in same radius is in a row, and the stomata has 10 to 15 rows.
5. alpha-chloro acetic acid preparation chlorine gas distributor as claimed in claim 4, it is characterised in that: the second level paddle,
Three-level paddle and level Four paddle respectively include multiple hollow snorkels, and the snorkel on the same paddle is located at
In same plane and one end other end that is connected with the shaft pipe is closed, and the stomata is set along the snorkel length direction
It sets, the snorkel quantity that the second level paddle, three-level paddle and level Four paddle respectively include is 6 to 10.
6. alpha-chloro acetic acid preparation chlorine gas distributor as claimed in claim 5, it is characterised in that: the radius of the vent disc
With the equal length of the snorkel, the center of every gas vent is away from for 30mm to 50mm, the second level stirring on the vent disc
The center of venthole on leaf away from greater than 50mm and to be not more than 100mm, the center of the venthole on the three-level paddle away from
Greater than 100mm and to be not more than 150mm, the center of the venthole on the level Four paddle is away from greater than 150mm and to be not more than
200mm。
7. alpha-chloro acetic acid preparation chlorine gas distributor as claimed in claim 6, it is characterised in that: the closing of the snorkel
The distance between end and the inner wall of reaction vessel are 10cm to 50cm, the bottom of the lower surface of the vent disc and the reaction vessel
The distance between face is 20cm to 50cm, the level Four paddle be located in reaction vessel the lower section of reaction solution liquid level and with it is described
The distance of reaction solution liquid level is 60cm to 100cm, the level-one paddle, second level paddle, three-level paddle and level Four stirring
Height difference between leaf is equal.
8. such as the described in any item alpha-chloro acetic acid preparation chlorine gas distributors of claim 5 or 6, it is characterised in that: described logical
Air vent openings direction on tracheae is obliquely that the angle between the axis and perpendicular of the stomata is 0 degree to 45 degree.
9. alpha-chloro acetic acid preparation chlorine gas distributor as claimed in claim 7, it is characterised in that: the gas on the snorkel
Hole opening direction is obliquely that the angle between the axis and perpendicular of the stomata is 0 degree to 45 degree.
10. such as claim 1 to 7 or 9 described in any item alpha-chloro acetic acid preparation chlorine gas distributors, it is characterised in that: institute
The aperture for stating stomata is 5mm to 15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821775002.8U CN209049359U (en) | 2018-10-30 | 2018-10-30 | Chlorine gas distributor is used in the preparation of alpha-chloro acetic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821775002.8U CN209049359U (en) | 2018-10-30 | 2018-10-30 | Chlorine gas distributor is used in the preparation of alpha-chloro acetic acid |
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| Publication Number | Publication Date |
|---|---|
| CN209049359U true CN209049359U (en) | 2019-07-02 |
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ID=67051950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821775002.8U Active CN209049359U (en) | 2018-10-30 | 2018-10-30 | Chlorine gas distributor is used in the preparation of alpha-chloro acetic acid |
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| CN (1) | CN209049359U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110935410A (en) * | 2019-12-01 | 2020-03-31 | 江西艾迪尔新能源有限公司 | Energy-saving production equipment for chloro-methoxy fatty acid methyl ester |
| EP3868464A1 (en) * | 2020-02-21 | 2021-08-25 | Wingflow AG | Reactor for production of micronized silica gels |
-
2018
- 2018-10-30 CN CN201821775002.8U patent/CN209049359U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110935410A (en) * | 2019-12-01 | 2020-03-31 | 江西艾迪尔新能源有限公司 | Energy-saving production equipment for chloro-methoxy fatty acid methyl ester |
| EP3868464A1 (en) * | 2020-02-21 | 2021-08-25 | Wingflow AG | Reactor for production of micronized silica gels |
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