CN220176482U - NMP waste gas treatment tower adopting liquid heating device - Google Patents
NMP waste gas treatment tower adopting liquid heating device Download PDFInfo
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- CN220176482U CN220176482U CN202321573059.0U CN202321573059U CN220176482U CN 220176482 U CN220176482 U CN 220176482U CN 202321573059 U CN202321573059 U CN 202321573059U CN 220176482 U CN220176482 U CN 220176482U
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- Prior art keywords
- tower
- liquid heating
- nmp
- tower body
- gas treatment
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- 239000007788 liquid Substances 0.000 title claims abstract description 64
- 238000010438 heat treatment Methods 0.000 title claims abstract description 58
- 239000002912 waste gas Substances 0.000 title claims abstract description 17
- 238000005507 spraying Methods 0.000 claims abstract description 29
- 238000005485 electric heating Methods 0.000 claims description 13
- 239000007789 gas Substances 0.000 claims description 11
- 239000007921 spray Substances 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 3
- 239000002699 waste material Substances 0.000 abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 15
- 230000007613 environmental effect Effects 0.000 abstract description 4
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 41
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
The utility model discloses an NMP waste gas treatment tower adopting a liquid heating device, which comprises a tower body, an air inlet pipe, a heating component and a spraying device; the heating component is arranged at the bottom of the tower body; the air inlet pipe is arranged on the side surface of the tower body; the spraying device is arranged at the top of the tower body and is connected with the circulating pump. According to the utility model, the liquid heating device is added, so that the temperature of NMP waste liquid in the tower is increased, and the circulating spraying of NMP waste liquid is realized through the spraying device and the circulating pump, so that the environmental temperature difference between the inside and the outside of the tower is reduced, the condensed water on the outer wall of the tower is also reduced, and the problem of condensed water generation on the outer wall of the tower can be avoided.
Description
Technical Field
The utility model relates to the technical field of chemical equipment, in particular to an NMP waste gas treatment tower adopting a liquid heating device.
Background
At present, in the lithium battery industry, the treatment mode of waste gas containing NMP (N-methyl pyrrolidone) is mainly condensation freezing and high tower spray absorption. Industry specifications prescribe that the common return air content of NMP is controlled below 300PPM, the corresponding temperature should be below 20 ℃, NMP waste gas (the temperature is 12-18 ℃) after low-temperature treatment enters a high tower for spray absorption, and the NMP is absorbed by adopting a mode that water is sprayed inside the high tower by utilizing the property that NMP can be dissolved in water. In the process, because the temperature of NMP waste gas entering the high tower is lower, NMP is dissolved in spray water in the tower to form NMP waste liquid (the temperature is 15-20 ℃), and the temperature in the tower and the temperature outside the tower form a temperature difference, so that a large amount of condensed water is formed on the outer surface of the high tower, and the condensed water flows down along the outer wall of the tower, so that the phenomenon of effusion is easily caused at the bottom of the tower, and the site construction is seriously influenced. Thus, the prior art solutions have the technical disadvantage that the outer surface of the tall tower forms a large amount of condensed water and causes the bottom of the tower to form a liquid accumulation.
Disclosure of Invention
The utility model aims to provide an NMP waste gas treatment tower adopting a liquid heating device, and aims to solve the technical defects that the prior art scheme has the technical defects that a large amount of condensed water is formed on the outer surface of a high tower, and liquid accumulation is caused at the bottom of the tower.
To achieve the purpose, the utility model adopts the following technical scheme:
the utility model discloses an NMP waste gas treatment tower adopting a liquid heating device, which comprises a tower body, an air inlet pipe, a heating component and a spraying device; the heating component is arranged at the bottom of the tower body; the air inlet pipe is arranged on the side surface of the tower body; the spraying device is arranged at the top of the tower body and is connected with the circulating pump.
Preferably, the heating assembly comprises a liquid heating device and a temperature controller, and the temperature controller is arranged on the outer side wall of the tower body.
Preferably, the liquid heating device comprises an electric heater and an electric heating interface, wherein the electric heating interface is arranged on one side of the electric heater, and the electric heater comprises electric heating pipes which are arranged in a combined mode.
Preferably, the electric heating pipes are arranged in parallel or in a winding manner.
Preferably, the number of the liquid heating apparatuses is plural.
Preferably, the number of the spraying devices is a plurality.
Preferably, a filtering device is further arranged at the air inlet pipe.
Preferably, an air outlet is further formed in the top end of the tower body.
Preferably, a bracket is further arranged at the bottom of the tower body.
The technical scheme discloses an NMP waste gas treatment tower adopting a liquid heating device, which comprises a tower body, an air inlet pipe, a heating component and a spraying device; the heating component is arranged at the bottom of the tower body; the air inlet pipe is arranged on the side surface of the tower body; the spraying device is arranged at the top of the tower body and is connected with the circulating pump. According to the utility model, the liquid heating device is added, so that the temperature of NMP waste liquid in the tower is increased, and the circulating spraying of NMP waste liquid is realized through the spraying device and the circulating pump, so that the environmental temperature difference between the inside and the outside of the tower is reduced, the condensed water on the outer wall of the tower is also reduced, and the problem of condensed water generation on the outer wall of the tower can be avoided.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an exhaust gas treatment tower according to an embodiment of the present utility model;
fig. 2 is a schematic structural diagram of a liquid heating apparatus according to an embodiment of the present utility model.
Wherein: 1. a tower body; 2. a heating assembly; 21. a liquid heating device; 22. a temperature controller; 211. an electric heater; 212. an electrical heating interface; 3. an air inlet pipe; 4. a spraying device; 5. a bracket; 6. and an air outlet.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. 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.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
The utility model discloses an NMP waste gas treatment tower adopting a liquid heating device, which is shown in figures 1 and 2, and comprises a tower body 1, an air inlet pipe 3, a heating component 2 and a spraying device 4; the heating component 2 is arranged at the bottom of the tower body 1, and the heating component 2 is used for heating the NMP waste liquid and sensing the temperature of the NMP waste liquid; the air inlet pipe 3 is arranged on the side surface of the tower body 1, and exhaust gas rich in NMP enters the tower body 1 from the air inlet pipe 3; the spray device 4 is arranged at the top of the tower body 1, the spray device 4 is connected with a circulating pump, the spray device 4 is used for spraying NMP waste liquid in the tower, and the circulating pump can enable NMP waste liquid in the tower body 1 to realize circulating spraying.
Wherein, heating element 2 includes liquid heating device 21, temperature controller 22 sets up on the lateral wall of tower body 1, temperature controller 22 has the accuse temperature probe, accuse temperature probe and the inside NMP waste liquid phase contact of tower body 1, temperature controller 22 can monitor the temperature of NMP waste liquid and control liquid heating device 21 start-stop.
The liquid heating device 21 comprises an electric heater 211 and an electric heating interface 212, the electric heating interface 212 is arranged on one side of the electric heater 211, the electric heating interface 212 is communicated with a circuit to supply power to the electric heater 211, the electric heater 211 starts to work, and the electric heater 211 comprises electric heating pipes which are arranged in a combined mode.
Wherein, the arrangement mode of the electric heating pipes is parallel arrangement or winding arrangement.
Specifically, the number of the liquid heating apparatuses 21 is plural, and the plural liquid heating apparatuses 21 are uniformly distributed in the NMP waste liquid, so that the NMP waste liquid is sufficiently heated.
Specifically, the number of the spraying devices 4 is multiple, and the spraying areas of the spraying water can be effectively ensured to be larger by the multiple spraying devices 4, so that NMP waste gas is fully absorbed.
Wherein, the air inlet pipe 3 is also provided with a filter device 31, and NMP waste gas entering the tower body 1 is pretreated by using the filter device 31, so that the content of harmful substances in the waste gas can be effectively reduced.
Wherein, the top of tower body 1 still is provided with air outlet 6, reaches the NMP waste gas of emission standard after absorbing and is discharged by air outlet 6.
The bottom of the tower body 1 is further provided with a support 5, and the support 5 can effectively support the tower body 1 and prevent the tower body 1 from directly contacting with the ground to protect the tower body 1.
In specific embodiments, exhaust gas rich in NMP enters the tower body 1 from the air inlet pipe 3, the spraying device 4 at the top of the tower body 1 works with the circulating pump, so that NMP waste liquid in the tower body 1 realizes circulating spraying, the liquid heating device 21 and the temperature controller 22 are arranged in the NMP waste liquid, the liquid heating device 21 can continuously heat the NMP waste liquid, the temperature controller 22 can monitor the temperature of the NMP waste liquid and control the starting and stopping of the liquid heating device 21, when the temperature of the NMP waste liquid is lower than 20 ℃, the temperature controller 22 controls the liquid heating device 21 to start, the electric heater 211 heats the NMP waste liquid, when the temperature of the NMP waste liquid rises to 40 ℃, the temperature controller 22 detects that the liquid temperature is too high, the electric heater 211 is controlled to stop heating the waste liquid, the heated NMP waste liquid realizes circulating spraying through the spraying device 4 and the circulating pump, so that the environmental temperature difference between the inside and outside the tower is reduced, and condensed water on the outer wall of the tower is also reduced.
The NMP waste gas treatment tower adopting the liquid heating device comprises a tower body, an air inlet pipe, a heating component and a spraying device; the heating component is arranged at the bottom of the tower body; the air inlet pipe is arranged on the side surface of the tower body; the spraying device is arranged at the top of the tower body and is connected with the circulating pump. According to the utility model, the liquid heating device is added, so that the temperature of NMP waste liquid in the tower is increased, and the circulating spraying of NMP waste liquid is realized through the spraying device and the circulating pump, so that the environmental temperature difference between the inside and the outside of the tower is reduced, the condensed water on the outer wall of the tower is also reduced, and the problem of condensed water generation on the outer wall of the tower can be avoided.
The technical principle of the present utility model is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the utility model and should not be taken in any way as limiting the scope of the utility model. Other embodiments of the utility model will be apparent to those skilled in the art from consideration of this specification without undue burden.
Claims (9)
1. The NMP waste gas treatment tower adopting the liquid heating device is characterized by comprising a tower body, an air inlet pipe, a heating component and a spraying device;
the heating component is arranged at the bottom of the tower body;
the air inlet pipe is arranged on the side surface of the tower body;
the spraying device is arranged at the top of the tower body and is connected with the circulating pump.
2. The NMP exhaust gas treatment tower employing a liquid heating apparatus according to claim 1, wherein said heating assembly includes a liquid heating apparatus, a thermostat, said thermostat being disposed on an outer side wall of said tower body.
3. The NMP exhaust gas treatment tower employing a liquid heating apparatus according to claim 2, wherein said liquid heating apparatus comprises an electric heater, an electric heating interface, said electric heating interface being disposed on one side of said electric heater, said electric heater comprising electric heating pipes arranged in combination.
4. A NMP exhaust gas treatment tower employing a liquid heating apparatus according to claim 3, wherein said electric heating pipes are arranged in a parallel arrangement or a winding arrangement.
5. A NMP off-gas treatment tower employing liquid heating means according to claim 2, wherein the number of liquid heating means is plural.
6. The NMP exhaust gas treatment tower utilizing a liquid heating apparatus as defined in claim 1, wherein said number of spray devices is plural.
7. The NMP exhaust gas treating tower with liquid heating apparatus as claimed in claim 1, wherein a filter is further provided at the air inlet pipe.
8. The NMP exhaust gas treatment tower employing a liquid heating apparatus as claimed in claim 1, wherein an air outlet is further provided at a top end of the tower body.
9. The NMP exhaust gas treatment tower employing a liquid heating apparatus as claimed in claim 1, wherein a bracket is further provided at the bottom of the tower body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321573059.0U CN220176482U (en) | 2023-06-20 | 2023-06-20 | NMP waste gas treatment tower adopting liquid heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321573059.0U CN220176482U (en) | 2023-06-20 | 2023-06-20 | NMP waste gas treatment tower adopting liquid heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220176482U true CN220176482U (en) | 2023-12-15 |
Family
ID=89100328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321573059.0U Active CN220176482U (en) | 2023-06-20 | 2023-06-20 | NMP waste gas treatment tower adopting liquid heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220176482U (en) |
-
2023
- 2023-06-20 CN CN202321573059.0U patent/CN220176482U/en active Active
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