CN209423574U - A kind of sodium hypochlorite synthetic tower - Google Patents
A kind of sodium hypochlorite synthetic tower Download PDFInfo
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- CN209423574U CN209423574U CN201822101877.6U CN201822101877U CN209423574U CN 209423574 U CN209423574 U CN 209423574U CN 201822101877 U CN201822101877 U CN 201822101877U CN 209423574 U CN209423574 U CN 209423574U
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- sodium hypochlorite
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Abstract
The utility model provides a kind of sodium hypochlorite synthetic tower, lye import is provided at the top of synthetic tower, middle part is equipped with two layers of packing layer, the liquor natrii hypochloritis for synthesizing tower bottom is reentered into synthetic tower by being recycled at the top of tower body using circulating pump, and cooler is provided on sodium hypochlorite circulation line, heat will be released in sodium hypochlorite synthesis process in time to remove, product yield significantly improves.It is provided with two layers of packing layer from top to bottom inside tower body, by adjusting parameters such as the thickness of packing layer, spacing, specific surface areas, guarantees that chlorine and lye or liquor natrii hypochloritis can be sufficiently mixed, make the synthetic reaction of sodium hypochlorite more evenly.Synthetic tower offgas outlet is connected to device for recovering tail gas, and the recovered liquid main component obtained from recyclable device remains as sodium hypochlorite, can also flow back into synthetic tower again, so the synthetic tower no pollution to the environment.
Description
Technical field
The utility model belongs to equipment for producing sodium hypochlorite technical field more particularly to a kind of sodium hypochlorite synthetic tower.
Background technique
Sodium hypochlorite is the raw material for preparing hydrazine hydrate, and sodium hypochlorite is catalyzed as oxidant and urea, caustic soda in magnesium sulfate
Under effect, heating generates hydrazine hydrate.The concentration proportioning of effective chlorine and free alkali influences very the yield of hydrazine hydrate in sodium hypochlorite
Greatly, it is excessive or it is too small can generate side reaction, not only waste raw material, and influence hydrazine hydrate yield.Therefore in production process
In, strict control concentration proportioning can improve the yield of hydrazine hydrate and reduce the consumption of raw material alkali, improve the utilization of raw material
Rate.
In traditional hydrazine hydrate production technique, equipment for producing sodium hypochlorite is generally alkali slot, and alkali will be passed through between chlorine
In slot, liquor natrii hypochloritis is generated.The technique process units is more simple and crude, and lye cannot be sufficiently mixed with chlorine, and due to
A large amount of heat is released in sodium hypochlorite synthesis process, it is easy to cause sodium hypochlorite to decompose, serious side reaction is to sodium hypochlorite
Yield impact it is larger.
Utility model content
Technical solution provided by the utility model is:
A kind of sodium hypochlorite synthetic tower, tower body upper side are equipped with lye import, and lye import is followed with sodium hypochlorite respectively
Endless tube road is connected with lye pipeline.
Be provided with level-one packing layer and second level packing layer in the middle part of tower body, level-one packing layer with a thickness of second level packing layer thickness
40-50%.
Tower body side, second level packing layer subjacent are provided with chlorine inlet, and chlorine inlet is connected with chlorine conveying pipelines
It connects.
Tower body side lower be provided with sodium hypochlorite outlet and sodium hypochlorite circulation line interface, sodium hypochlorite outlet with time
Sodium chlorate storage tank is connected, and sodium hypochlorite circulation line interface is connected with sodium hypochlorite circulation line.
Cooler is provided on sodium hypochlorite circulation line, the cooler enters sodium hypochlorite circulation line for cooling
Liquor natrii hypochloritis.
Circulating pump is additionally provided on sodium hypochlorite circulation line, the circulating pump is used to synthesize the sodium hypochlorite of tower bottom
Solution is delivered to the lye import at the top of tower body through sodium hypochlorite circulation line, and liquor natrii hypochloritis is made to reenter synthetic tower.
Further, the distance between level-one packing layer and second level packing layer are the 25-35% of level-one packing layer thickness.
Further, level-one packing layer and second level packing layer are Pall ring, and Pall ring is polytetrafluoroethylene (PTFE) material, Pall ring
Specific surface area be 150-200m2/m3。
Further, it is provided with offgas outlet at the top of tower body, offgas outlet is connected with device for recovering tail gas.
Further, dispersion plate is installed, dispersion plate is for making lye in tower body between level-one packing layer and lye import
Even into packing layer.
Further, tower body lower part is provided with first liquid level gauge mouth and second liquid level gauge mouth, the height of first liquid level gauge mouth
Lower than chlorine inlet.
Further, alkali liquor pipe road is provided with lye pipe valve.
Further, tower body side is disposed with the first to the 5th manhole from top to bottom, for synthesis inner-tower filling material
It is overhauled.
Compared with prior art, the utility model has the advantage that (1) will synthesize the secondary chlorine of tower bottom using circulating pump
Acid sodium solution is delivered to lye import by sodium hypochlorite circulation line, and liquor natrii hypochloritis reenters synthetic tower from top,
It is additionally provided with cooler on sodium hypochlorite circulation line, heat will be released in sodium hypochlorite synthesis process in time and removed, protects
Reaction temperature is demonstrate,proved in control range, is effectively reduced side reaction, product yield significantly improves；(2) from upper inside tower body
It is provided with two layers of packing layer under, by adjusting the distance between the thickness of two layers of packing layer, two layers of packing layer, and reasonably selects
The specific surface area of filler guarantees that chlorine and lye or liquor natrii hypochloritis can be sufficiently mixed, makes the synthetic reaction of sodium hypochlorite more
Uniformly, and it is further ensured that product yield；(3) device for recovering tail gas being connect with offgas outlet be lye absorptive unit, from return
The recovered liquid main component that receiving apparatus obtains is sodium hypochlorite, can also be flowed back into synthetic tower again, so the synthetic tower does not have
Exhaust gas and discharging of waste liquid, no pollution to the environment；(4) dispersion plate is provided between level-one packing layer and lye import, it is ensured that
Lye or liquor natrii hypochloritis uniformly enter packing layer, to guarantee sufficiently reaction.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of sodium hypochlorite synthetic tower.
Wherein: 1, tower body, 2, chlorine inlet, 3, lye import, 41, level-one packing layer, 42, second level packing layer, 51-55,
First to the 5th manhole, 6, sodium hypochlorite outlet, 71, first liquid level gauge mouth, 72, second liquid level gauge mouth, 8, cooler, 9, circulation
Pump, 10, offgas outlet, 11, sodium hypochlorite circulation line, 121, lye pipeline, 122, lye pipe valve, 13, dispersion plate.
Specific embodiment
In the following, being illustrated in conjunction with attached drawing to the embodiments of the present invention.
The utility model provides a kind of sodium hypochlorite synthetic tower, and 1 upper side of tower body is equipped with lye import 3, lye into
Mouth 3 is connected with sodium hypochlorite circulation line 11 and lye pipeline 121 respectively, and lye pipeline valve is provided on lye pipeline 121
Door 122.It is provided with offgas outlet 10 at the top of tower body, offgas outlet 10 is connected with device for recovering tail gas.
It is provided with level-one packing layer 41 and second level packing layer 42 in the middle part of tower body, level-one packing layer 41 is filled out with a thickness of second level
The 40-50% of 42 thickness of the bed of material；The distance between level-one packing layer 41 and second level packing layer 42 are 41 thickness of level-one packing layer
25-35%；Level-one packing layer 41 and second level packing layer 42 are Pall ring, and Pall ring is polytetrafluoroethylene (PTFE) material, the ratio of Pall ring
Surface area is 150-200m2/m3.1 side of tower body, 42 subjacent of second level packing layer are provided with chlorine inlet 2, chlorine inlet 2 with
Chlorine conveying pipelines are connected.
1 side lower of tower body is provided with sodium hypochlorite outlet 6 and sodium hypochlorite circulation line interface, sodium hypochlorite outlet 6
It is connected with sodium hypochlorite storage tank, the liquor natrii hypochloritis for concentration to be reached requirement is delivered to next workshop section；Sodium hypochlorite
Circulation line interface is connected with sodium hypochlorite circulation line 11, conveys for concentration to be not up to desired liquor natrii hypochloritis
It to 1 top of tower body, reenters in tower body 1, continues to and chlorine reaction.
Cooler 8 is provided on sodium hypochlorite circulation line 11, the cooler 8 is recycled for the cooling sodium hypochlorite that enters
The liquor natrii hypochloritis of pipeline 11.
Circulating pump 9 is additionally provided on sodium hypochlorite circulation line, the circulating pump 9 is used for the hypochlorous acid of 1 lower part of tower body
Sodium solution is delivered to the lye import 3 at 1 top of tower body through sodium hypochlorite circulation line 11, and liquor natrii hypochloritis is made to reenter tower
Body 1.Dispersion plate 13 is installed between first packing layer 41 and lye import 3 in tower body 1, dispersion plate 13 for make lye uniformly into
Enter packing layer.
Tower body lower part is provided with first liquid level gauge mouth 71 and second liquid level gauge mouth 72, and the height of first liquid level gauge mouth 71 is lower than
Chlorine inlet 2, for measuring the liquid level of 1 inside liquor natrii hypochloritis of tower body.
Tower body side is disposed with the first to the 5th manhole 51-55 from top to bottom, for examining to filler in tower body 1
It repairs.
32% soda bath from caustic soda process is entered into tower body 1 from the lye import 3 on 1 top of tower body first, from the
One liquidometer mouth 71 and second liquid level gauge mouth 72 measure liquid level, after concentration reaches requirement, close lye pipe valve
122.Chlorine is passed through tower body 1 from chlorine inlet 2 simultaneously, lye is dispersed plate 13 and uniformly enters level-one packing layer 41, second level
Packing layer 42 uniformly mixes with chlorine, reacts, and lye is converted into liquor natrii hypochloritis.Wherein, the thickness of level-one packing layer 41
Degree is the 40% of 42 thickness of second level packing layer；The distance between level-one packing layer 41 and second level packing layer 42 are level-one packing layer 41
The 30% of thickness；Level-one packing layer 41 and second level packing layer 42 are Pall ring, and Pall ring is polytetrafluoroethylene (PTFE) material, Pall ring
Specific surface area is 200m2/m3。
Liquor natrii hypochloritis's concentration due to falling on 1 lower part of tower body temporarily not up to requires, it will be secondary using circulating pump 9
Sodium chlorate solution is transported to the lye import 3 on top, liquor natrii hypochloritis's weight through sodium hypochlorite circulation line 11 from 1 lower part of tower body
It newly enters in tower body 1, continuation and chlorine reaction.Further, since a large amount of heat can be released when synthesis sodium hypochlorite, so secondary
It is additionally provided with cooler 8 on sodium chlorate circulation line 11, even if reducing the temperature of liquor natrii hypochloritis, reduces secondary caused by high temperature
Sodium chlorate decompose, while be more favorable to liquor natrii hypochloritis in next workshop section with the smooth reaction of urea.
When the content of effective chlorine in 1 lower part liquor natrii hypochloritis of tower body reaches 110-125g/L, i.e. liquor natrii hypochloritis
After the requirement for meeting next workshop section, liquor natrii hypochloritis is from 6 output of the sodium hypochlorite of 1 lower part of tower body outlet to subsequent processing.So
Lye pipe valve is opened afterwards, so that lye is reentered tower body 1, repeats the above process, and can be continuously next workshop section and be provided completely
The liquor natrii hypochloritis that sufficient technique requires.
Finally it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, can still modify to technical solution documented by previous embodiment, or to part of technical characteristic into
Row equivalent replacement.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on, should all
It is included within the scope of protection of this utility model.
Claims (10)
1. a kind of sodium hypochlorite synthetic tower, which is characterized in that
Tower body (1) upper side be equipped with lye import (3), lye import (3) respectively with sodium hypochlorite circulation line (11) and alkali
Liquid pipeline (121) is connected；
Be provided with level-one packing layer (41) and second level packing layer (42) in the middle part of tower body (1), level-one packing layer (41) with a thickness of two
The 40-50% of grade packing layer (42) thickness；
Tower body (1) side, second level packing layer (42) subjacent are provided with chlorine inlet (2), chlorine inlet (2) and chlorine gas transfer
Pipeline is connected；
Tower body (1) side lower is provided with sodium hypochlorite outlet (6) and sodium hypochlorite circulation line interface, sodium hypochlorite outlet
(6) it is connected with sodium hypochlorite storage tank, sodium hypochlorite circulation line interface is connected with sodium hypochlorite circulation line (11)；
It is provided on sodium hypochlorite circulation line (11) cooler (8), the cooler (8) is followed for cooling into sodium hypochlorite
The liquor natrii hypochloritis on endless tube road (11)；
It is additionally provided on sodium hypochlorite circulation line (11) circulating pump (9), the circulating pump is used for the secondary chlorine of tower body (1) lower part
Acid sodium solution is delivered to the lye import (3) at the top of tower body (1) through sodium hypochlorite circulation line (11), makes liquor natrii hypochloritis's weight
Newly enter tower body (1).
2. sodium hypochlorite synthetic tower as described in claim 1, which is characterized in that the level-one packing layer (41) and second level packing layer
It the distance between (42) is the 25-35% of level-one packing layer (41) thickness.
3. sodium hypochlorite synthetic tower as claimed in claim 2, which is characterized in that the level-one packing layer (41) and second level packing layer
It (42) is Pall ring.
4. sodium hypochlorite synthetic tower as claimed in claim 3, which is characterized in that the Pall ring is polytetrafluoroethylene (PTFE) material.
5. sodium hypochlorite synthetic tower as claimed in claim 3, which is characterized in that the specific surface area of the Pall ring is 150-
200m2/m3。
6. sodium hypochlorite synthetic tower as described in claim 1, which is characterized in that be provided with offgas outlet at the top of the tower body (1)
(10), offgas outlet (10) is connected with device for recovering tail gas.
7. sodium hypochlorite synthetic tower as described in claim 1, which is characterized in that the interior level-one packing layer (41) of tower body (1) with
It is equipped between lye import (3) dispersion plate (13), dispersion plate (13) is for making lye even into packing layer.
8. sodium hypochlorite synthetic tower as described in claim 1, which is characterized in that tower body (1) lower part is provided with the first liquid level
Mouth (71) and second liquid level gauge mouth (72) are counted, the height of first liquid level gauge mouth (71) is lower than chlorine inlet.
9. sodium hypochlorite synthetic tower as described in claim 1, which is characterized in that be provided with lye on the lye pipeline (121)
Pipe valve (122).
10. sodium hypochlorite synthetic tower as described in claim 1, which is characterized in that the tower body side is set gradually from top to bottom
There is the first to the 5th manhole (51-55).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822101877.6U CN209423574U (en) | 2018-12-14 | 2018-12-14 | A kind of sodium hypochlorite synthetic tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822101877.6U CN209423574U (en) | 2018-12-14 | 2018-12-14 | A kind of sodium hypochlorite synthetic tower |
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| Publication Number | Publication Date |
|---|---|
| CN209423574U true CN209423574U (en) | 2019-09-24 |
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ID=67971846
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822101877.6U Active CN209423574U (en) | 2018-12-14 | 2018-12-14 | A kind of sodium hypochlorite synthetic tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115957713A (en) * | 2022-12-20 | 2023-04-14 | 江苏奥喜埃化工有限公司 | Sodium hypochlorite production system of protection production line |
-
2018
- 2018-12-14 CN CN201822101877.6U patent/CN209423574U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115957713A (en) * | 2022-12-20 | 2023-04-14 | 江苏奥喜埃化工有限公司 | Sodium hypochlorite production system of protection production line |
| CN115957713B (en) * | 2022-12-20 | 2023-12-01 | 江苏奥喜埃化工有限公司 | Sodium hypochlorite production system of protection production line |
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