CN220328229U - Intermittent reactor tail gas collecting device for m-xylylenediamine production - Google Patents
Intermittent reactor tail gas collecting device for m-xylylenediamine production Download PDFInfo
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- CN220328229U CN220328229U CN202321199086.6U CN202321199086U CN220328229U CN 220328229 U CN220328229 U CN 220328229U CN 202321199086 U CN202321199086 U CN 202321199086U CN 220328229 U CN220328229 U CN 220328229U
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- reactor
- intermittent
- pipe
- gas
- rotating shaft
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- FDLQZKYLHJJBHD-UHFFFAOYSA-N [3-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=CC(CN)=C1 FDLQZKYLHJJBHD-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 238000005406 washing Methods 0.000 claims abstract description 31
- 238000005201 scrubbing Methods 0.000 claims abstract description 13
- 238000003756 stirring Methods 0.000 claims abstract description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 36
- 239000012535 impurity Substances 0.000 abstract description 4
- 239000002912 waste gas Substances 0.000 abstract description 4
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 24
- 239000007921 spray Substances 0.000 description 15
- 238000006243 chemical reaction Methods 0.000 description 13
- 238000001035 drying Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 239000003054 catalyst Substances 0.000 description 4
- 238000005984 hydrogenation reaction Methods 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- UQBNGMRDYGPUOO-UHFFFAOYSA-N 1-n,3-n-dimethylbenzene-1,3-diamine Chemical compound CNC1=CC=CC(NC)=C1 UQBNGMRDYGPUOO-UHFFFAOYSA-N 0.000 description 1
- JLTDJTHDQAWBAV-UHFFFAOYSA-N N,N-dimethylaniline Chemical compound CN(C)C1=CC=CC=C1 JLTDJTHDQAWBAV-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- DSVGQVZAZSZEEX-UHFFFAOYSA-N [C].[Pt] Chemical compound [C].[Pt] DSVGQVZAZSZEEX-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000013035 low temperature curing Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- UKVIEHSSVKSQBA-UHFFFAOYSA-N methane;palladium Chemical compound C.[Pd] UKVIEHSSVKSQBA-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model relates to the technical field of m-xylylenediamine production, and discloses an intermittent reactor tail gas collecting device for m-xylylenediamine production, which comprises an intermittent reactor, wherein an air inlet pipe is arranged on the left side of the intermittent reactor, a first control valve is arranged on the air inlet pipe, the tail end of the air inlet pipe stretches into the bottom of the intermittent reactor, a stirring device is arranged in the intermittent reactor, a charging port is arranged on the left side of the upper end of the intermittent reactor, an air outlet pipe is connected with an air outlet on the right side of the upper end of the intermittent reactor, the tail end of the air outlet pipe is connected with a washing tower, an air outlet on the upper end of the washing tower is connected with a collecting pipe, and the tail end of the collecting pipe is connected with a collecting bin. Through setting up the scrubbing tower, can wash the waste gas that intermittent type formula reactor inside produced and remove the impurity, then collect through collecting the storehouse, can reutilization, avoid the gas directly to discharge and cause environmental pollution and the extravagant phenomenon of resource.
Description
Technical Field
The utility model relates to the technical field of m-xylylenediamine production, in particular to an intermittent reactor tail gas collecting device for m-xylylenediamine production.
Background
M-xylylenediamine (MXDA), also known as 1, 3-xylylenediamine, m-dimethylaminobenzene, 1, 3-dimethylaminobenzene, has a molecular formula of C8H12N2, and is colorless liquid at room temperature. The epoxy resin curing agent has the advantages of excellent performance, low-temperature curing, heat resistance, water resistance, good chemical corrosion resistance, low viscosity, easy operation and the like, can be applied to the fields of polyurethane, polyamide, rubber additives, pesticides, fiber finishing agents, rust removers, chelating agents, lubricants, paper processing additives, electronic chemicals and the like, and is a fine chemical with wide application range and high added value.
The intermittent reactor is the most common hydrogenation reactor used for realizing the multiphase reaction processes of liquid-liquid, gas-liquid, liquid-solid, gas-liquid-solid and the like. It uses noble metals such as skeleton nickel, palladium carbon, platinum carbon, etc. as catalysts to carry out various hydrogenation reactions. The catalyst often plays a decisive role in the overall hydrogenation reaction during the reaction. In addition, the noble metal catalyst has very high value, so that in the industrial production, a kettle-type reactor is used for hydrogenation reaction, and the recycling and reuse of the catalyst are particularly important.
The tail gas generated in the reaction process of the existing intermittent reactor is usually directly discharged into the air, so that the environment is damaged, the physical and mental health of operators is affected, and the tail gas contains a large amount of useful gas, so that the environment is affected and the resource waste is caused by directly discharging the tail gas.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the utility model provides a batch reactor tail gas collecting device for producing m-xylylenediamine.
(II) technical scheme
In order to solve the problems, the utility model provides the following technical scheme: the utility model provides an intermittent type formula reactor tail gas collection device for m-xylylenediamine production, includes intermittent type formula reactor, intermittent type formula reactor's left side is provided with the intake pipe, be provided with first control valve in the intake pipe, the end of intake pipe is gone deep into to intermittent type formula reactor's bottom, intermittent type formula reactor's inside is provided with agitating unit, intermittent type formula reactor's bottom is provided with the relief valve, intermittent type formula reactor upper end's left side is provided with the charge door, intermittent type formula reactor upper end right side gas outlet is connected with the outlet duct, the end-to-end connection of outlet duct has the scrubbing tower, the gas outlet of scrubbing tower upper end is connected with the collecting pipe, the end-to-end connection of collecting pipe has the collection storehouse.
Preferably, a heating jacket is arranged on the outer side of the batch reactor.
Preferably, the stirring device comprises a motor, an output shaft of the motor is connected with a rotating shaft, the lower end of the rotating shaft is positioned in the intermittent reactor, the rotating shaft is in a hollow state, a gas self-suction blade is arranged at the lower end of the rotating shaft and is communicated with the rotating shaft, and the tail end of the air inlet pipe is positioned at the bottom of the rotating shaft and is not in contact with the rotating shaft.
Preferably, a spray pipe is arranged at the lower end of the inside of the washing tower, a plurality of groups of spray heads are arranged at the lower end of the spray pipe, the positions of the spray heads are higher than the air inlet of the washing tower, and an active carbon layer and a drying layer are sequentially arranged at the upper end of the washing tower.
Preferably, a drain valve is arranged at the bottom of the washing tower.
Preferably, the right side of shower is connected with the inlet tube, the inlet tube is located the right side of scrubbing tower, be provided with the second control valve on the inlet tube, the end-to-end connection of inlet tube has the suction pump, the inlet of suction pump is connected with the suction pipe, the end of suction pipe is located the inside of scrubbing pond.
(III) beneficial effects
Compared with the prior art, the utility model provides the intermittent reactor tail gas collecting device for producing the m-xylylenediamine, which has the following beneficial effects:
1. this intermittent type formula reactor tail gas collection device is used in m-xylylenediamine production through setting up the scrubbing tower, can wash the waste gas that produces in the intermittent type formula reactor and remove the impurity, then collect through collecting the storehouse, can reutilization, avoids gaseous direct discharge to cause environmental pollution and the phenomenon of wasting of resources.
2. According to the intermittent reactor tail gas collecting device for producing the m-xylylenediamine, the heating sleeve can be used for heating the internal reaction of the intermittent reactor, so that the internal reaction efficiency of the intermittent reactor is accelerated; and the motor is started, the rotating shaft is driven to rotate by the motor, and then the gas self-priming blade is driven to rotate to stir the inside of the intermittent reactor, so that the reaction is quickened.
Drawings
FIG. 1 is a schematic diagram showing the structure of a device for collecting tail gas from a batch reactor for producing m-xylylenediamine according to the present utility model.
In the figure: the device comprises a batch reactor 1, a heating jacket 2, a charging port 3, a motor 4, a rotating shaft 5, a gas self-priming blade 6, a first control valve 7, an air inlet pipe 8, a discharge valve 9, an air outlet pipe 10, a collecting pipe 11, a collecting bin 12, a washing tower 13, a blow-down valve 14, a spray pipe 15, a spray header 16, an activated carbon layer 17, a drying layer 18, a second control valve 19, a water inlet pipe 20, a water pump 21, a water pumping pipe 22 and a washing pool 23.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, the present utility model provides a new technical solution: the intermittent reactor tail gas collecting device for m-xylylenediamine production comprises an intermittent reactor 1, wherein an air inlet pipe 8 is arranged on the left side of the intermittent reactor 1, a first control valve 7 is arranged on the air inlet pipe 8, the tail end of the air inlet pipe 8 extends deep into the bottom of the intermittent reactor 1, a stirring device is arranged in the intermittent reactor 1, a discharge valve 9 is arranged at the bottom of the intermittent reactor 1, a feed inlet 3 is arranged on the left side of the upper end of the intermittent reactor 1, an air outlet pipe 10 is connected with an air outlet on the right side of the upper end of the intermittent reactor 1, a washing tower 13 is connected with the air outlet of the air outlet pipe 10, a collecting pipe 11 is connected with the air outlet on the upper end of the washing tower 13, and the tail end of the collecting pipe 11 is connected with a collecting bin 12; in a specific embodiment, firstly, raw materials are added into the intermittent reactor 1 through a feed inlet 3, then a first control valve 7 is opened, hydrogen is conveyed into the intermittent reactor 1 through an air inlet pipe 8, a stirring device is started to stir the interior of the intermittent reactor 1, the reaction efficiency of the hydrogen and the interior of the intermittent reactor 1 is accelerated, gas generated by the reaction is conveyed into a washing tower 13 through an air outlet pipe 10 for washing and filtering, and the filtered gas is conveyed into a collecting bin 12 through a collecting pipe 11 for collecting.
In this embodiment, a heating jacket 2 is disposed outside the batch reactor 1, and the internal reaction of the batch reactor 1 can be heated by the heating jacket 2, so as to accelerate the internal reaction efficiency of the batch reactor 1.
In this embodiment, the stirring device includes a motor 4, an output shaft of the motor 4 is connected with a rotating shaft 5, a lower end of the rotating shaft 5 is located inside the batch reactor 1, the inside of the rotating shaft 5 is in a hollow state, a gas self-priming blade 6 is disposed at a lower end of the rotating shaft 5, the gas self-priming blade 6 is communicated with the inside of the rotating shaft 5, and an end of the air inlet pipe 8 is located at the bottom of the rotating shaft 5 and is not in contact with the rotating shaft; in the specific implementation process, the motor 4 is started, the motor 4 drives the rotating shaft 5 to rotate, and then the gas self-priming blade 6 is driven to rotate to stir the inside of the intermittent reactor 1, so that the reaction is quickened.
In this embodiment, a spray pipe 15 is disposed at the lower end inside the washing tower 13, a plurality of groups of spray headers 16 are disposed at the lower end of the spray pipe 15, the spray headers 16 are higher than the air inlet of the washing tower 13, an activated carbon layer 17 and a drying layer 18 are sequentially disposed at the upper end of the washing tower 13, the drying layer 18 is made of a gas drying agent and is used for removing moisture in gas, and the activated carbon layer 17 is used for removing impurities in air.
In this embodiment, a drain valve 14 is disposed at the bottom of the washing tower 13, and the drain valve 14 is used to drain the residual washing liquid in the washing tower 13.
In this embodiment, a water inlet pipe 20 is connected to the right side of the spray pipe 15, the water inlet pipe 20 is located on the right side of the washing tower 13, a second control valve 19 is disposed on the water inlet pipe 20, a water pump 21 is connected to the end of the water inlet pipe 20, a water suction pipe 22 is connected to a liquid inlet of the water pump 21, and the end of the water suction pipe 22 is located inside a washing water tank 23; the water suction pump 21 is started, the washing water in the washing water tank 23 is pumped out through the water suction pipe 22, the second control valve 19 is opened, then the washing water is conveyed into the spray pipe 15 through the water inlet pipe 20, and finally the washing water is sprayed out through the spray header 16 to wash the gas in the washing tower 13.
Working principle: in the using process of the intermittent reactor tail gas collecting device for producing the m-xylylenediamine, firstly, raw materials are added into the intermittent reactor 1 through a feed inlet 3, then a first control valve 7 is opened, hydrogen is conveyed into the intermittent reactor 1 through an air inlet pipe 8, a motor 4 is started, a rotating shaft 5 is driven to rotate through the motor 4, then a gas self-priming blade 6 is driven to rotate to stir the interior of the intermittent reactor 1, the reaction is accelerated, gas generated by the reaction is conveyed into a washing tower 13 through an air outlet pipe 10, a water suction pump 21 is started, washing water in a washing water tank 23 is pumped out through a water suction pipe 22, a second control valve 19 is opened, then the gas is conveyed into a spray pipe 15 through an inlet pipe 20, finally the gas in the washing tower 13 is sprayed out through a spray header 16, the washed gas is firstly dried through a drying layer 18, the impurity is removed through an active carbon layer 17 after the drying, and finally the gas is conveyed into a collecting bin 12 through a collecting pipe 11 for collecting.
In this embodiment, the washing tower 13 is provided, so that the waste gas generated in the batch reactor 1 can be washed and decontaminated, and then collected by the collection bin 12, so that the waste gas can be reused, and the phenomena of environmental pollution and resource waste caused by direct gas discharge are avoided.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a batch type reactor tail gas collection device is used in m-xylylenediamine production, includes batch type reactor (1), its characterized in that: the left side of intermittent type formula reactor (1) is provided with intake pipe (8), be provided with first control valve (7) on intake pipe (8), the end of intake pipe (8) is gone deep into the bottom of intermittent type formula reactor (1), the inside of intermittent type formula reactor (1) is provided with agitating unit, the bottom of intermittent type formula reactor (1) is provided with discharge valve (9), the left side of intermittent type formula reactor (1) upper end is provided with charge door (3), intermittent type formula reactor (1) upper end right side gas outlet is connected with outlet duct (10), the end-to-end connection of outlet duct (10) has scrubbing tower (13), scrubbing tower (13) upper end gas outlet is connected with collecting pipe (11), the end-to-end connection of collecting pipe (11) has collection storehouse (12).
2. The batch reactor off-gas collecting device for producing m-xylylenediamine according to claim 1, wherein: the outer side of the batch reactor (1) is provided with a heating jacket (2).
3. The batch reactor off-gas collecting device for producing m-xylylenediamine according to claim 1, wherein: the stirring device comprises a motor (4), an output shaft of the motor (4) is connected with a rotating shaft (5), the lower end of the rotating shaft (5) is located inside the intermittent reactor (1), the rotating shaft (5) is in a hollow state, a gas self-priming blade (6) is arranged at the lower end of the rotating shaft (5), the gas self-priming blade (6) is communicated with the rotating shaft (5) in an internal mode, and the tail end of the air inlet pipe (8) is located at the bottom of the rotating shaft (5) and is not in contact with the rotating shaft.
4. The batch reactor off-gas collecting device for producing m-xylylenediamine according to claim 1, wherein: the lower extreme inside scrubbing tower (13) is provided with shower (15), the lower extreme of shower (15) is provided with a plurality of groups shower (16), shower (16) position is higher than the air inlet of scrubbing tower (13), the upper end of scrubbing tower (13) has set gradually active carbon layer (17) and dry layer (18).
5. The intermittent reactor off-gas collecting device for producing m-xylylenediamine according to claim 4, wherein: a blow-down valve (14) is arranged at the bottom of the washing tower (13).
6. The intermittent reactor off-gas collecting device for producing m-xylylenediamine according to claim 4, wherein: the right side of shower (15) is connected with inlet tube (20), inlet tube (20) are located the right side of scrubbing tower (13), be provided with second control valve (19) on inlet tube (20), the end-to-end connection of inlet tube (20) has suction pump (21), the inlet of suction pump (21) is connected with suction pipe (22), the end of suction pipe (22) is located the inside of scrubbing pond (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321199086.6U CN220328229U (en) | 2023-05-17 | 2023-05-17 | Intermittent reactor tail gas collecting device for m-xylylenediamine production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321199086.6U CN220328229U (en) | 2023-05-17 | 2023-05-17 | Intermittent reactor tail gas collecting device for m-xylylenediamine production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220328229U true CN220328229U (en) | 2024-01-12 |
Family
ID=89456024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321199086.6U Active CN220328229U (en) | 2023-05-17 | 2023-05-17 | Intermittent reactor tail gas collecting device for m-xylylenediamine production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220328229U (en) |
-
2023
- 2023-05-17 CN CN202321199086.6U patent/CN220328229U/en active Active
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