CN215311421U - Tail gas absorption device for trichloroisocyanuric acid production - Google Patents
Tail gas absorption device for trichloroisocyanuric acid production Download PDFInfo
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- CN215311421U CN215311421U CN202121840352.XU CN202121840352U CN215311421U CN 215311421 U CN215311421 U CN 215311421U CN 202121840352 U CN202121840352 U CN 202121840352U CN 215311421 U CN215311421 U CN 215311421U
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Abstract
The utility model relates to the technical field of trichloroisocyanuric acid production, in particular to a tail gas absorption device for trichloroisocyanuric acid production, which comprises a trisodium salt supply mechanism, a secondary tower module, a trisodium salt stirring and conveying mechanism, a primary tower module, a chlorination auxiliary kettle, a jet pump, a tail gas absorption tank and a chlorination main kettle; the three sodium salt supply mechanism, the secondary tower module, the three sodium salt stirring and conveying mechanism, the primary tower module and the chlorination auxiliary kettle are communicated in sequence, and the chlorination auxiliary kettle overflows the three sodium salts into the chlorination main kettle through the tail gas absorption tank and the jet pump in sequence; the tail gas at the top of the main chlorination kettle enters the bottom of the primary tower module after being absorbed by the jet pump and the tail gas absorption tank, the top of the primary tower module is communicated with the bottom of the secondary tower module, and a gas outlet is formed in the top of the secondary tower module. The utility model has simple structure and reasonable design, saves cost, relieves the pressure of the first-stage tower module and the second-stage tower module for absorbing tail gas, and is more favorable for ensuring that the tail gas reaches the standard and is discharged.
Description
Technical Field
The utility model relates to the technical field of production of trichloroisocyanuric acid, and particularly relates to a tail gas absorption device for trichloroisocyanuric acid production.
Background
Trichloroisocyanuric acid as a high-efficiency solid disinfectant has the characteristics of high killing efficiency, convenient transportation and the like, and can gradually enter the daily life of people. The production process of trichloroisocyanuric acid by sodium salt method mainly includes the processes of salification, chlorination, centrifugation and drying, and the chlorination process is the most important link and the main link for producing residual chlorine. In the chlorination process, if the unreacted residual chlorine cannot be effectively absorbed, the method is a resource waste for the internal production process, is not effectively utilized, and increases the production cost; for the external environment, the excessive chlorine gas is discharged into the atmosphere, which can cause serious environmental pollution, personnel poisoning and other adverse effects. Therefore, an effective chlorinated tail gas absorption device is sought to effectively reduce the production cost and protect the environment.
Disclosure of Invention
The tail gas absorption device for producing trichloroisocyanuric acid is simple in structure and reasonable in design, can absorb unreacted chlorine in a main chlorination kettle to the maximum extent through the tail gas absorption tank and the jet pump, saves cost, relieves the pressure of a first-stage tower module and a second-stage tower module for absorbing tail gas, and is more favorable for ensuring that the tail gas reaches the standard and is discharged; and the trisodium salt in the tail gas absorption tank overflows into the main kettle for chlorination reaction, so that the cycle period of the trisodium salt is shortened, the possibility of generating nitrogen trichloride by material decomposition is reduced, and the safety of the chlorination reaction is improved.
In order to achieve the purpose, the technical scheme of the utility model is as follows:
the tail gas absorption device for trichloroisocyanuric acid production comprises a trisodium salt supply mechanism, a secondary tower module, a trisodium salt stirring and conveying mechanism, a primary tower module, a chlorination auxiliary kettle, a jet pump, a tail gas absorption tank and a chlorination main kettle;
the three sodium salt supply mechanism, the secondary tower module, the three sodium salt stirring and conveying mechanism, the primary tower module and the chlorination auxiliary kettle are communicated in sequence, the three sodium salt overflows to the chlorination auxiliary kettle after passing through the primary tower module, and the chlorination auxiliary kettle overflows the three sodium salt to the chlorination main kettle through the tail gas absorption tank and the jet pump in sequence;
the tail gas at the top of the main chlorination kettle enters the bottom of the primary tower module after being absorbed by the jet pump and the tail gas absorption tank, the top of the primary tower module is communicated with the bottom of the secondary tower module, and a gas outlet is formed in the top of the secondary tower module.
In a further preferred embodiment, the secondary tower module comprises a secondary absorption tower, a secondary tower trisodium salt recycle tank and a secondary tower recycle pump; the trisodium salt supply mechanism is connected with the top of the trisodium salt circulating tank of the second-stage tower, the bottom of the trisodium salt circulating tank of the second-stage tower is communicated with the upper part of the second-stage absorption tower through a circulating pump of the second-stage tower, the bottom of the second-stage absorption tower is communicated with the middle part of the top end of the trisodium salt circulating tank of the second-stage tower, and the bottom of the second-stage absorption tower is communicated with the first-stage tower module through a gas pipeline; one side of the upper part of the second-stage tower trisodium salt circulating tank is communicated with a trisodium salt stirring and conveying mechanism.
In a further preferred embodiment, the first-stage tower module comprises a first-stage absorption tower, a first-stage tower circulating pump and a first-stage tower trisodium salt circulating tank; the bottom of the trisodium salt stirring and conveying mechanism is communicated with the upper part of an inlet of a first-stage tower circulating pump, the bottom of the first-stage tower trisodium salt circulating tank is communicated with the upper part of a first-stage absorption tower through the first-stage tower circulating pump, and the bottom of the first-stage absorption tower is communicated with the middle part of the top end of the first-stage tower trisodium salt circulating tank; one side of the upper part of the first-stage tower trisodium salt circulating tank is communicated with the middle part of the top end of the chlorination auxiliary kettle; the top of the main chlorination kettle is communicated with a gas pipe at the bottom of the primary absorption tower through an injection pump and a tail gas absorption tank, and the top of the primary absorption tower is communicated with the bottom of the secondary absorption tower through a gas pipe.
In a further preferred scheme, the trisodium salt stirring and conveying mechanism comprises a trisodium salt stirring tank and a trisodium salt stirring pump, one side of the upper part of the secondary tower trisodium salt circulating tank is communicated with the trisodium salt stirring tank, the bottom of the trisodium salt stirring tank is communicated with the trisodium salt stirring pump, and the trisodium salt stirring pump is communicated with the upper part of the inlet of the primary tower circulating pump.
In further preferred scheme, the tail gas absorption tank still includes tail gas absorption tank circulating pump, tail gas absorption tank bottom in proper order with tail gas absorption tank circulating pump, jet pump and tail gas absorption tank top intercommunication, one-level absorption tank bottom is through gas transmission pipeline and tail gas absorption tank top one side intercommunication, one side on the upper portion one side intercommunication chlorination auxiliary kettle upper portion of tail gas absorption tank, the opposite side and the main cauldron top side intercommunication of chlorination on tail gas absorption tank upper portion.
In a further preferable scheme, liquid flow meters are arranged in series on communication pipelines between the trisodium salt supply mechanism and the trisodium salt circulation tank of the second-stage tower, between the circulation pump of the second-stage tower and the upper part of the second-stage absorption tower, and between the circulation pump of the first-stage tower and the upper part of the first-stage absorption tower.
In a further preferable scheme, valves are arranged in series on communication pipelines between the trisodium salt supply mechanism and the second-stage tower trisodium salt circulation tank, between the second-stage tower trisodium salt circulation tank and the second-stage circulation pump, between the second-stage tower circulation pump and the upper part of the second-stage absorption tower, between the first-stage tower trisodium salt circulation tank and the first-stage tower circulation pump, between the first-stage tower circulation pump and the upper part of the first-stage absorption tower, and between the trisodium salt stirring and conveying mechanism and the inlet of the first-stage tower circulation pump.
In a further preferred scheme, valves are arranged between the upper part of the side surface of the tail gas absorption tank and the chlorination main kettle and between the upper part of the side surface of the tail gas absorption tank and the chlorination auxiliary kettle, and on the top of the chlorination main kettle and a pipeline of an inlet of the jet pump in series.
In a further preferred version, the trisodium salt supply mechanism comprises a trisodium salt storage tank and a trisodium salt storage tank pump, the trisodium salt storage tank pumping trisodium salt to the secondary tower module through the trisodium salt storage tank pump.
Through the technical scheme, the utility model has the beneficial effects that:
the trisodium salt supply mechanism pumps the trisodium salt to the secondary tower module and then returns to the trisodium salt stirring and conveying mechanism, the trisodium salt is pumped into the primary tower module to carry out secondary absorption on chlorine in the tail gas of the main chlorination kettle and is discharged after reaching the discharge standard, the trisodium salt overflows to the auxiliary chlorination kettle after passing through the primary tower module and then overflows to the main chlorination kettle after passing through the tail gas absorption tank and the jet pump, and residual chlorine in the main chlorination kettle further reacts with the trisodium salt in the tail gas absorption tank through the jet pump and then overflows to the main chlorination kettle. The tail gas absorption tank fully absorbs residual chlorine and simultaneously reduces partial pH value, and the tail gas enters the main chlorination kettle to perform chlorination reaction to obtain a final chlorination product.
Unreacted chlorine in the main chlorination kettle can be absorbed to the maximum extent through the tail gas absorption tank and the jet pump, the pressure of the primary tower module and the secondary tower module for absorbing tail gas is relieved while the cost is saved, and the tail gas emission standard is ensured; and the trisodium salt in the tail gas absorption tank overflows into the main chlorination kettle for chlorination reaction, so that the cycle period of the trisodium salt is shortened, the possibility of generating nitrogen trichloride by material decomposition is reduced, and the safety of the chlorination reaction is improved. The trisodium salt and the residual chlorine are further reacted in the tail gas absorption tank through the jet pump, so that partial pH value is reduced while the residual chlorine is fully absorbed, the reaction time in the main chlorination kettle 7 is favorably shortened, and the cost is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a tail gas absorption device for trichloroisocyanuric acid production according to the present invention.
The reference numbers in the drawings are as follows: the device comprises a main body 1, a main body 101, a main body 102, a main body 2, a main body 201, a main body 202, a main body 301, a main body 303, a main body 4, a main body 9, a main body circulation pump 11, a main body circulation pump 7, a main body circulation pump 8, a main body circulation pump 9, a main body circulation pump 10, a main body circulation pump 11, a main body circulation pump 201, a main body circulation pump 202, a main body circulation pump 203, a main body circulation pump 3, a main body circulation pump 301, a main body circulation pump 302, a main body circulation pump 303, a main body circulation pump 4, a main body circulation pump 401, a main body circulation pump 402, a main body circulation pump 5, a main body circulation pump 6, a main body circulation pump 601, a main body circulation pump 8, a main body circulation pump 9, a gas discharge port 10, a liquid flow meter 11 and a valve.
Detailed Description
The utility model is further described with reference to the following figures and detailed description:
in the description of the present invention, it is to be understood that the terms "left", "right", "upper", "lower", "lateral", "vertical", etc. indicate orientations or positional relationships based on those shown in fig. 1 only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
As shown in fig. 1, the present embodiment provides a tail gas absorption device for trichloroisocyanuric acid production, which includes a trisodium salt supply mechanism 1, a secondary tower module 2, a trisodium salt stirring and conveying mechanism 4, a primary tower module 3, a chlorination auxiliary kettle 5, a jet pump 8, a tail gas absorption tank 6, and a chlorination main kettle 7.
The three sodium salt feeding mechanism 1, the second-stage tower module 2, the three sodium salt stirring and conveying mechanism 4, the first-stage tower module 3 and the chlorination auxiliary kettle 5 are sequentially communicated through pipelines, the three sodium salt feeding mechanism 1 conveys the three sodium salt to the second-stage tower module 2, the three sodium salt in the second-stage tower module 2 overflows to the three sodium salt stirring and conveying mechanism 4, the three sodium salt is conveyed to the first-stage tower module 3 through the three sodium salt stirring and conveying mechanism 4, then the three sodium salt overflows to the chlorination auxiliary kettle 5 from the first-stage tower module 3, and the chlorination auxiliary kettle 5 overflows the three sodium salt to the chlorination main kettle 7 through the tail gas absorption tank 6 and the jet pump 8 in sequence;
tail gas at the top of the main chlorination kettle 7 enters the bottom of the primary tower module 3 after being absorbed by the jet pump 8 and the tail gas absorption tank 6, the top of the primary tower module 3 is communicated with the bottom of the secondary tower module 2, and a gas outlet 9 is formed in the top of the secondary tower module 2.
Unreacted chlorine in the main chlorination kettle 7 can be absorbed to the maximum extent through the tail gas absorption tank 6 and the jet pump 8, the pressure of the primary tower module and the secondary tower module for absorbing tail gas is relieved while the cost is saved, and the tail gas emission standard is ensured; and the trisodium salt in the tail gas absorption tank 6 overflows into the main chlorination kettle 7 for chlorination reaction, so that the cycle period of the trisodium salt is shortened, the possibility of generating nitrogen trichloride by decomposing materials is reduced, and the safety of the chlorination reaction is improved. The trisodium salt and the residual chlorine are further reacted in the tail gas absorption tank 6 through the jet pump 8, so that partial pH value is reduced while the residual chlorine is fully absorbed, the reaction time in the main chlorination kettle 7 is favorably shortened, and the cost is reduced.
As described above, the secondary tower module 2 includes the secondary absorption tower 201, the secondary tower trisodium salt circulation tank 203, and the secondary tower circulation pump 202. The trisodium salt supply mechanism 1 is connected with the top of a second-stage tower trisodium salt circulation tank 203 through a pipeline, the bottom of the second-stage tower trisodium salt circulation tank 203 is communicated with the upper part of a second-stage absorption tower 201 through a second-stage tower circulating pump 202 through a pipeline, the bottom of the second-stage absorption tower 201 is communicated with the middle part of the top end of the second-stage tower trisodium salt circulation tank 203 through a pipeline, and the bottom of the second-stage absorption tower 201 is communicated with a first-stage tower module 3 through a gas pipeline; one side of the upper part of the second-stage tower trisodium salt circulating tank 203 is communicated with the trisodium salt stirring and conveying mechanism 4 through a pipeline.
As described above, the primary tower module 3 includes the primary absorption tower 301, the primary tower circulation pump 302, and the primary tower trisodium salt circulation tank 303. The bottom of the trisodium salt stirring and conveying mechanism 4 is communicated with the upper part of an inlet of a first-stage tower circulating pump 302 through a pipeline, the bottom of a first-stage tower trisodium salt circulating tank 303 is communicated with the upper part of a first-stage absorption tower 301 through the first-stage tower circulating pump 302 through a pipeline, and the bottom of the first-stage absorption tower 301 is communicated with the middle part of the top end of the first-stage tower trisodium salt circulating tank 303 through a pipeline; one side of the upper part of the first-stage tower trisodium salt circulating tank 303 is communicated with the middle part of the top end of the chlorination auxiliary kettle 5 through a pipeline; the top of the main chlorination reactor 7 is communicated with a gas pipe at the bottom of the primary absorption tower 301 through the jet pump 8 and the tail gas absorption tank 6, and the top of the primary absorption tower 301 is communicated with the bottom of the secondary absorption tower 201 through the gas pipe.
In the above, the trisodium salt stirring and conveying mechanism 4 comprises a trisodium salt stirring tank 401 and a trisodium salt stirring pump 402, one side of the upper part of the secondary tower trisodium salt circulation tank 203 is communicated with the trisodium salt stirring tank 401 through a pipeline, the bottom of the trisodium salt stirring tank 401 is communicated with the trisodium salt stirring pump 402 through a pipeline, and the trisodium salt stirring pump 402 is communicated with the upper part of the inlet of the primary tower circulation pump 302 through a pipeline.
Foretell, tail gas absorption tank 6 still includes tail gas absorption tank circulating pump 601, and 6 bottoms of tail gas absorption tank communicate with tail gas absorption tank circulating pump 601, jet pump 8 and 6 tops of tail gas absorption tank in proper order through the pipeline, and one-level absorption tower 301 bottom is through gas transmission pipeline and 6 top one side intercommunications of tail gas absorption tank, and one side on 5 upper portions of the upper portion one side intercommunication chlorination auxiliary kettle of tail gas absorption tank 6, the opposite side and 7 top sides intercommunications of chlorination main kettle on 6 upper portions of tail gas absorption tank.
In the above, the liquid flow meters 10 are provided in series in the communication pipes between the trisodium salt supply means 1 and the second-stage tower trisodium salt circulation tank 203, between the second-stage tower circulation pump 202 and the upper part of the second-stage absorption tower 201, and between the first-stage tower circulation pump 302 and the upper part of the first-stage absorption tower 301.
And valves 11 are arranged between the upper part of the side surface of the tail gas absorption tank 6 and the chlorination main kettle 7 and the chlorination auxiliary kettle 5, and between the top of the chlorination main kettle 7 and the pipeline at the inlet of the jet pump 8 in series.
As described above, the trisodium salt supply mechanism 1 includes the trisodium salt storage tank 101 and the trisodium salt storage tank pump 102, the bottom of the trisodium salt storage tank 101 is connected to the trisodium salt storage tank pump 102 through a pipe, the outlet of the trisodium salt storage tank pump 102 is connected to one side of the top of the secondary tower trisodium salt circulation tank 203 through a pipe, and the trisodium salt storage tank pump 102 pumps the trisodium salt into the secondary tower trisodium salt circulation tank 203 of the secondary tower module 2.
Trisodium salt flow path: the trisodium salt in the trisodium salt storage tank 101 is sent to the second-stage tower trisodium salt circulation tank 203 through the trisodium salt storage tank pump 102, and when the trisodium salt in the second-stage tower trisodium salt circulation tank 203 is higher than the overflow height, namely the height of a pipeline connecting the second-stage tower trisodium salt circulation tank 203 and the trisodium salt stirring tank 401, the trisodium salt overflows into the trisodium salt stirring tank 401; the trisodium salt is sent to the inlet end of the first-stage tower circulating pump 302 through the trisodium salt stirring pump 402, is pumped into the first-stage absorption tower 301 through the first-stage tower circulating pump 302, is discharged into the first-stage tower trisodium salt circulating tank 303 from the first-stage absorption tower 301, and overflows into the chlorination auxiliary kettle 5 when the trisodium salt in the first-stage tower trisodium salt circulating tank 303 is higher than the overflow height, namely the height of a pipeline communicating the first-stage tower trisodium salt circulating tank 303 with the chlorination auxiliary kettle 5; the trisodium salt in the chlorination auxiliary kettle 5 overflows into the tail gas absorption tank 6, and the transportation path of the trisodium salt in the tail gas absorption tank 6 is as follows: and (3) a tail gas absorption tank 6, a tail gas absorption tank circulating pump 601, a jet pump 8 and a tail gas absorption tank 6, wherein part of trisodium salt in the tail gas absorption tank 6 overflows to a main chlorination kettle 7.
After the residual chlorine in the main chlorination kettle 7 is further reacted and absorbed in the tail gas absorption tank 6 through the jet pump 8, the trisodium salt overflows to the main chlorination kettle 7, the trisodium salt reduces partial pH value while fully absorbing the residual chlorine, and finally enters the main chlorination kettle 7 for chlorination reaction to obtain a final chlorination product; unreacted residual chlorine overflowing from the tail gas absorption tank 6 enters the primary absorption tower 301 for reaction, and unreacted chlorine is discharged into the secondary absorption tower 201 through a gas transmission pipeline at the top of the primary absorption tower 301 for reaction and is discharged after reaching the discharge standard.
The above-described embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the utility model, so that equivalent changes or modifications in the structure, features and principles described in the present invention should be included in the claims of the present invention.
Claims (9)
1. The tail gas absorption device for trichloroisocyanuric acid production is characterized by comprising a trisodium salt supply mechanism (1), a secondary tower module (2), a trisodium salt stirring and conveying mechanism (4), a primary tower module (3), a chlorination auxiliary kettle (5), a jet pump (8), a tail gas absorption tank (6) and a chlorination main kettle (7);
the three sodium salt feeding mechanism (1), the secondary tower module (2), the three sodium salt stirring and conveying mechanism (4), the primary tower module (3) and the auxiliary chlorination kettle (5) are sequentially communicated, the three sodium salt overflows to the auxiliary chlorination kettle (5) after passing through the primary tower module (3), and the auxiliary chlorination kettle (5) overflows the three sodium salt to the main chlorination kettle (7) sequentially through the tail gas absorption tank (6) and the jet pump (8);
the tail gas at the top of the main chlorination kettle (7) is absorbed by the jet pump (8) and the tail gas absorption tank (6) and then enters the bottom of the first-stage tower module (3), the top of the first-stage tower module (3) is communicated with the bottom of the second-stage tower module (2), and a gas outlet (9) is formed in the top of the second-stage tower module (2).
2. The absorption apparatus for tail gas from trichloroisocyanuric acid production according to claim 1, wherein the secondary tower module (2) comprises a secondary absorption tower (201), a secondary tower trisodium salt recycle tank (203), and a secondary tower recycle pump (202); the trisodium salt supply mechanism (1) is connected with the top of the second-stage tower trisodium salt circulation tank (203), the bottom of the second-stage tower trisodium salt circulation tank (203) is communicated with the upper part of the second-stage absorption tower (201) through a second-stage tower circulating pump (202), the bottom of the second-stage absorption tower (201) is communicated with the middle part of the top end of the second-stage tower trisodium salt circulation tank (203), and the bottom of the second-stage absorption tower (201) is communicated with the first-stage tower module (3) through a gas transmission pipeline; one side of the upper part of the second-stage tower trisodium salt circulating tank (203) is communicated with the trisodium salt stirring and conveying mechanism (4).
3. The absorption apparatus for tail gas from trichloroisocyanuric acid production according to claim 2, wherein the primary tower module (3) comprises a primary absorption tower (301), a primary tower circulating pump (302), and a primary tower trisodium salt circulating tank (303); the bottom of the trisodium salt stirring and conveying mechanism (4) is communicated with the upper part of an inlet of a first-stage tower circulating pump (302), the bottom of a first-stage tower trisodium salt circulating tank (303) is communicated with the upper part of a first-stage absorption tower (301) through the first-stage tower circulating pump (302), and the bottom of the first-stage absorption tower (301) is communicated with the middle part of the top end of the first-stage tower trisodium salt circulating tank (303); one side of the upper part of the first-stage tower trisodium salt circulating tank (303) is communicated with the middle part of the top end of the chlorination auxiliary kettle (5); the top of the main chlorination kettle (7) is communicated with a gas pipe at the bottom of the primary absorption tower (301) through an injection pump (8) and a tail gas absorption tank (6), and the top of the primary absorption tower (301) is communicated with the bottom of the secondary absorption tower (201) through a gas pipe.
4. The trichloroisocyanuric acid production tail gas absorption device of claim 3, wherein: the trisodium salt stirring and conveying mechanism (4) comprises a trisodium salt stirring tank (401) and a trisodium salt stirring pump (402), one side of the upper part of the secondary tower trisodium salt circulating tank (203) is communicated with the trisodium salt stirring tank (401), the bottom of the trisodium salt stirring tank (401) is communicated with the trisodium salt stirring pump (402), and the trisodium salt stirring pump (402) is communicated with the upper part of an inlet of the primary tower circulating pump (302).
5. The trichloroisocyanuric acid production tail gas absorption device of claim 3, wherein: tail gas absorption tank (6) still include tail gas absorption tank circulating pump (601), tail gas absorption tank (6) bottom in proper order with tail gas absorption tank circulating pump (601), jet pump (8) and tail gas absorption tank (6) top intercommunication, one-level absorption tower (301) bottom is through gas transmission pipeline and tail gas absorption tank (6) top one side intercommunication, one side on the upper portion one side intercommunication chlorination auxiliary kettle (5) upper portion of tail gas absorption tank (6), the opposite side and the main cauldron of chlorination (7) top side intercommunication on tail gas absorption tank (6) upper portion.
6. The trichloroisocyanuric acid production tail gas absorption device of claim 3, wherein: and liquid flow meters (10) are connected in series on communication pipelines between the trisodium salt supply mechanism (1) and the trisodium salt circulation tank (203) of the secondary tower, between the circulating pump (202) of the secondary tower and the upper part of the secondary absorption tower (201), and between the circulating pump (302) of the primary tower and the upper part of the primary absorption tower (301).
7. The trichloroisocyanuric acid production tail gas absorption device of claim 3, wherein: valves are arranged in series on communication pipelines between the trisodium salt supply mechanism (1) and the second-stage tower trisodium salt circulation tank (203), between the second-stage tower trisodium salt circulation tank (203) and the second-stage tower circulation pump (202), between the second-stage tower circulation pump (202) and the upper part of the second-stage absorption tower (201), between the first-stage tower trisodium salt circulation tank (303) and the first-stage tower circulation pump (302), between the first-stage tower circulation pump (302) and the upper part of the first-stage absorption tower (301), and between the trisodium salt stirring and conveying mechanism (4) and the inlet of the first-stage tower circulation pump (302).
8. The trichloroisocyanuric acid production tail gas absorption device of claim 3, wherein: and valves are arranged between the upper part of the side surface of the tail gas absorption tank (6) and the chlorination main kettle (7) and the chlorination auxiliary kettle (5) and on the pipeline between the top of the chlorination main kettle (7) and the inlet of the jet pump (8) in series.
9. The trichloroisocyanuric acid production tail gas absorption device of claim 1 or 2, wherein: the trisodium salt supply mechanism (1) comprises a trisodium salt storage tank (101) and a trisodium salt storage tank pump (102), the trisodium salt storage tank (101) pumping trisodium salt to the secondary tower module (2) through the trisodium salt storage tank pump (102).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121840352.XU CN215311421U (en) | 2021-08-09 | 2021-08-09 | Tail gas absorption device for trichloroisocyanuric acid production |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121840352.XU CN215311421U (en) | 2021-08-09 | 2021-08-09 | Tail gas absorption device for trichloroisocyanuric acid production |
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| CN215311421U true CN215311421U (en) | 2021-12-28 |
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| CN202121840352.XU Active CN215311421U (en) | 2021-08-09 | 2021-08-09 | Tail gas absorption device for trichloroisocyanuric acid production |
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