CN212954710U - Bromine-containing wastewater treatment device - Google Patents
Bromine-containing wastewater treatment device Download PDFInfo
- Publication number
- CN212954710U CN212954710U CN202021729508.2U CN202021729508U CN212954710U CN 212954710 U CN212954710 U CN 212954710U CN 202021729508 U CN202021729508 U CN 202021729508U CN 212954710 U CN212954710 U CN 212954710U
- Authority
- CN
- China
- Prior art keywords
- bromine
- tower
- tail gas
- inlet
- outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model relates to a bromine-containing wastewater treatment device, which comprises a wastewater purification system, a wastewater distillation system, a crude bromine rectification system and a tail gas recovery system; the wastewater purification system comprises a dissolved air floatation tank, a filter and a buffer tank which are sequentially connected through a pipeline; the crude bromine rectification system comprises a rectification tower group and a refined bromine condenser; the waste water distillation device comprises a preheater, a distillation tower, a bromine steam condenser group and a bromine water separator; the tail gas recovery system comprises a tail gas condenser group, a first cooler and a tail gas recovery tower. The utility model discloses have that bromine rate of recovery is high, it is few to retrieve bromine impurity, bromine utilization ratio is high and beneficial effect such as tail gas treatment environmental protection.
Description
Technical Field
The utility model relates to a waste water treatment device especially relates to a bromine-containing waste water treatment device, belongs to waste water treatment technical field.
Background
The butyl rubber is a widely used rubber variety, has excellent performances of air tightness, heat resistance, aging resistance, solvent resistance, shock absorption, electrical insulation and the like, and becomes a common material for the tire inner liner. Halogenated butyl rubber is a product of the reaction of butyl rubber with chlorine or bromine and can be divided into chlorinated butyl rubber and brominated butyl rubber, and the appearance of modern tires with excellent airtightness benefits from the invention and use of halogenated butyl rubber airtight layers in many aspects. The application of the halogenated butyl rubber greatly improves the pressure maintaining performance of the tire inner liner rubber, the adhesion performance between the inner liner and the tire body and the durability of the tire, and compared with the first generation inner liner technology adopting the conventional butyl rubber, the use of the halogenated butyl rubber is a great improvement of the tire air-tight process. However, compared with foreign countries, the development and application development of halogenated butyl rubber materials are relatively late in China. In order to meet the requirement of China on high-performance rubber materials, it is necessary to further develop the research and development work of halogenated butyl rubber.
The basic principle of brominated butyl rubber is that liquid bromine reacts with butyl rubber to produce brominated butyl rubber. The reaction process of bromination of butyl rubber is a substitution reaction, i.e. Br2The theoretical maximum effective utilization rate of bromine atoms in the reaction is not more than 50 percent, the utilization rate of the bromine atoms in the production process of the common brominated rubber is only 45 to 50 percent, more than half of the bromine atoms do not enter the product rubber and are used as bromine ionsThe form exists in water. If the waste water is directly discharged, the environment is seriously polluted and resources are wasted. With the increasing strictness of environmental monitoring, the treatment of bromine-containing wastewater is urgent, but in the prior art, when bromine is recovered, because the treatment is unreasonable, the recovered bromine contains a large amount of impurities, the content is low, the bromine cannot be used, and tail gas is directly discharged, so that the environment is affected, and waste is caused. Therefore, the waste water is not only treated to meet the environmental requirement, but also bromine in the waste water is recovered to obtain better economic benefit.
SUMMERY OF THE UTILITY MODEL
The utility model discloses mainly be to bromine content is not high after the bromine-containing waste water treatment among the prior art, the more and unclean problem of tail gas treatment of impurity in the recovery bromine, a bromine-containing waste water treatment device is provided, the device adopts steam distillation's method to administer the bromine-containing waste water in the production of brominated butyl rubber, make more than 90% bromine in the bromine-containing waste water obtain retrieving, it is up to standard to discharge waste water, and bromine impurity after retrieving is less, can directly be used for the production of brominated butyl rubber, effectively improve the utilization ratio of bromine, also carry out the recovery of bromine to the tail gas that the distillation process produced in addition, the pollution to the environment has been reduced, the environmental protection requirement has been reached, enterprise cost has still been reduced, economic benefits has been improved.
The purpose of the utility model is mainly realized by the following scheme:
the bromine-containing wastewater treatment device comprises a wastewater purification system, a wastewater distillation system, a crude bromine rectification system and a tail gas recovery system; the wastewater purification system comprises a dissolved air floatation tank, a filter and a buffer tank which are sequentially connected through a pipeline; the wastewater distillation device comprises a preheater, a distillation tower, a bromine steam condenser group and a bromine water separator, wherein a water inlet of the preheater is connected with a water outlet of a buffer tank, a water inlet of the distillation tower is connected with a water outlet of the preheater, a bromine steam outlet of the distillation tower is connected with an inlet of the bromine steam condenser group, an outlet of the bromine steam condenser group is connected with an inlet of the bromine water separator, and an overflow pipeline is arranged between the bromine water separator and the distillation tower; the crude bromine rectifying system comprises a rectifying tower group and a refined bromine condenser, wherein a water inlet of the rectifying tower group is connected with an outlet at the bottom of the bromine-water separator, and an outlet of the rectifying tower group is connected with an inlet of the refined bromine condenser; the tail gas recovery system comprises a tail gas condenser group, a first cooler and a tail gas recovery tower, wherein the gas phase outlet of the bromine water separator and the gas phase outlet of the rectification tower group are connected with the inlet of the tail gas condenser group, the outlet of the tail gas condenser group is connected with the inlet of the bromine water separator, the outlet of the tail gas condenser group is connected with the bottom inlet of the tail gas recovery tower, the inlet of the first cooler is connected with the outlet of the buffer tank, the outlet of the first cooler is connected with the top inlet of the tail gas recovery tower, and the bottom outlet of the tail gas recovery tower is connected with the water inlet of the distillation tower.
Preferably, a first flow meter is arranged between the preheater and the buffer tank, and a second flow meter is arranged between the first cooler and the buffer tank.
Preferably, the bromine steam condenser group is provided with 2-4 condensers in parallel.
Preferably, a bottom outlet of the distillation tower is connected with a neutralization kettle.
Preferably, the rectifying tower group comprises a first-stage rectifying tower, a second-stage rectifying tower, a third-stage rectifying tower, a first-stage condenser group, a second-stage condenser group and a third-stage condenser group, wherein an inlet of the first-stage rectifying tower is connected with a bottom outlet of the bromine-water separator, a bottom outlet of the first-stage rectifying tower is connected with a middle inlet of the second-stage rectifying tower, an upper outlet of the second-stage rectifying tower is connected with a middle inlet of the third-stage rectifying tower, and an upper outlet of the third-stage rectifying tower is connected with an inlet of the bromine refining condenser; the import of one-level condenser group links to each other with the top export of one-level rectifying column, the import of second grade condenser group links to each other with the top export of second grade rectifying column, the import of tertiary condenser group links to each other with the top export of tertiary rectifying column, and the gaseous phase export of one-level condenser group, second grade condenser group and tertiary condenser group all links to each other with the import of tail gas condenser group.
Preferably, the tail gas condenser group is provided with 2-4 condensers in parallel.
Preferably, the tail gas recovery system further comprises a tail gas alkaline washing tower, an alkaline washing tank and a second cooler, wherein an inlet at the lower part of the tail gas alkaline washing tower is connected with an outlet at the top of the tail gas recovery tower, an outlet at the bottom of the tail gas alkaline washing tower is connected with an inlet of the alkaline washing tank, an outlet of the alkaline washing tank is connected with an inlet of the second cooler, and an outlet of the second cooler is connected with an inlet at the top of the tail gas alkaline washing tower.
Preferably, the preheating temperature of the preheater is 70-85 ℃.
Preferably, the distillation tower is a packed tower, the tower body is made of tetrafluoro-lined or glass tower, and the temperature of the tower top is 80-95 ℃.
Preferably, the first-stage rectifying tower, the second-stage rectifying tower and the third-stage rectifying tower are all packed towers, the tower body is made of lining tetrafluoro or glass towers, the tower top temperature of the first-stage rectifying tower is 43-58 ℃, and the tower top temperature of the second-stage rectifying tower and the third-stage rectifying tower is 45-60 ℃; and the packing of the distillation tower, the first-stage rectifying tower, the second-stage rectifying tower and the third-stage rectifying tower is regular ceramic packing or glass packing.
Therefore, the utility model discloses possess following advantage:
(1) the bromine-containing wastewater in the utility model is pretreated, distilled and rectified, so that more than 90 percent of bromine in the bromine-containing wastewater is recovered, and the discharged wastewater reaches the standard;
(2) the crude bromine obtained by the wastewater distillation system of the utility model is subjected to condensation separation and multistage rectification, so that the impurities in the recovered bromine are greatly reduced, the bromine is refined, and the finished bromine is used as the raw material for producing brominated butyl rubber of enterprises, thereby greatly reducing the cost of the enterprises and improving the economic benefit;
(3) the utility model discloses a bromine steam among the noncondensable gas that tail gas recovery system produced distillation and rectification turns into after the bromide ion and returns to waste water purification system and continue to retrieve bromine, has avoided the emission of bromine, has reduced the pollution to the environment, has reached the requirement of environmental protection.
Drawings
Fig. 1 is a schematic view of an apparatus of the present invention;
fig. 2 is a schematic flow chart of the present invention.
Illustration of the drawings: 1-dissolved air flotation tank, 2-filter, 3-buffer tank, 4-first flowmeter, 5-second flowmeter, 6-preheater, 7-first cooler, 8-distillation tower, 9-bromine steam condenser group, 10-neutralization kettle, 11-bromine water separator, 12-first-stage rectifying tower, 13-first-stage condenser group, 14-second-stage rectifying tower, 15-second-stage condenser group, 16-third-stage rectifying tower, 17-third-stage condenser group, 18-bromine refining condenser, 19-tail gas condenser group, 20-tail gas recovery tower, 21-tail gas alkali washing tower, 22-alkali washing tank, 23-second cooler, A-bromine-containing waste water, B-coagulant, C-steam, D-condensate water and E-chlorine, f-crude bromine, G-finished bromine, H-dilute alkali solution and I-high-concentration bromine water.
Detailed Description
The technical solution of the present invention is further specifically described below by way of specific embodiments and with reference to the accompanying drawings. It is to be understood that the practice of the present invention is not limited to the following examples, and that any modifications and/or changes in form made to the present invention are intended to fall within the scope of the present invention.
In the utility model, all parts and percentages are weight units, and the adopted equipment, raw materials and the like can be purchased from the market or commonly used in the field if not specified. The methods in the following examples are conventional in the art unless otherwise specified. The components or devices in the following examples are, unless otherwise specified, standard parts or parts known to those skilled in the art, the structure and principle of which are known to those skilled in the art through technical manuals or through routine experimentation.
As shown in figure 1, the utility model provides a technical scheme, a bromine-containing wastewater treatment device, which comprises a wastewater purification system, a wastewater distillation system, a crude bromine rectification system and a tail gas recovery system.
The wastewater purification system is composed of a dissolved air flotation tank 1, a filter 2 and a buffer tank 3 which are sequentially connected through a pipeline.
The wastewater distillation device comprises a preheater 6, a distillation tower 8, a bromine steam condenser group 9 and a bromine water separator 11, wherein a water inlet of the preheater 6 is connected with a water outlet of a buffer tank 3, a first flow meter 4 is arranged between the preheater 6 and the buffer tank 3, a water inlet of the distillation tower 8 is connected with a water outlet of the preheater 6, a bromine steam outlet of the distillation tower 8 is connected with an inlet of the bromine steam condenser group 9, a bottom outlet of the distillation tower 8 is connected with a neutralization kettle 10, an outlet of the bromine steam condenser group 9 is connected with an inlet of the bromine water separator 11, an overflow pipeline is further arranged between the bromine water separator 11 and the distillation tower 8, the bromine steam condenser group 9 is provided with 2-4 condensers in parallel, and the embodiment is provided with 4 condensers; the distillation tower 8 is a packed tower, the material of the tower body is a lining tetrafluoro or glass tower, and the packing is regular ceramic packing or glass packing.
The crude bromine rectification system consists of a rectification tower group and a refined bromine condenser 18, wherein the rectification tower group consists of a primary rectification tower 12, a secondary rectification tower 14, a tertiary rectification tower 16, a primary condenser group 13, a secondary condenser group 15 and a tertiary condenser group 17, an inlet of the primary rectification tower 12 is connected with a bottom outlet of the bromine-water separator 11, a bottom outlet of the primary rectification tower 12 is connected with a middle inlet of the secondary rectification tower 14, an upper outlet of the secondary rectification tower 14 is connected with a middle inlet of the tertiary rectification tower 16, and an upper outlet of the tertiary rectification tower 16 is connected with an inlet of the refined bromine condenser 18; the inlet of the first-stage condenser group 13 is connected with the top outlet of the first-stage rectifying tower 12, the inlet of the second-stage condenser group 15 is connected with the top outlet of the second-stage rectifying tower 14, the inlet of the third-stage condenser group 17 is connected with the top outlet of the third-stage rectifying tower 16, the gas phase outlets of the first-stage condenser group 13, the second-stage condenser group 15 and the third-stage condenser group 17 are connected with the inlet of the tail gas condenser group 19, the first-stage condenser group 13 is 2-4 condensers which are arranged in parallel, 2 condensers are arranged in the embodiment, the second-stage condenser group 15 and the third-stage condenser group 17 are 1-3 condensers which are connected in series, and 1 condenser is arranged in the embodiment; the first-stage rectifying tower 12, the second-stage rectifying tower 14 and the third-stage rectifying tower 16 are all packed towers, the tower body is made of tetrafluoro-lined or glass-lined towers, and the packing is regular ceramic packing or glass packing.
The tail gas recovery system comprises a tail gas condenser group 19, a first cooler 7, a tail gas recovery tower 20, a tail gas alkaline washing tower 21, an alkaline washing tank 22 and a second cooler 23, wherein the tail gas condenser group 19 is provided with 2-4 condensers in parallel, 4 condensers are arranged in the embodiment, gas phase outlets of a bromine water separator 11 and a rectifying tower group are connected with an inlet of the tail gas condenser group 19, an outlet of the tail gas condenser group 19 is connected with an inlet of the bromine water separator 11 on one hand and a bottom inlet of the tail gas recovery tower 20 on the other hand, an inlet of the first cooler 7 is connected with an outlet of a buffer tank 3, a second flowmeter 5 is arranged between the first cooler 7 and the buffer tank 3, an outlet of the first cooler 7 is connected with a top inlet of the tail gas recovery tower 20, a bottom outlet of the tail gas recovery tower 20 is connected with a water inlet of the distillation tower 8, a lower inlet of the tail gas alkaline washing tower 21 is connected with a top outlet of the tail gas recovery tower 20, the outlet at the bottom of the tail gas alkaline washing tower 21 is connected with the inlet of the alkaline washing tank 22, the outlet of the alkaline washing tank 22 is connected with the inlet of the second cooler 23, and the outlet of the second cooler 23 is connected with the inlet at the top of the tail gas alkaline washing tower 21.
The utility model discloses bromine-containing waste water treatment device's specific implementation process as follows:
s1: introducing bromine-containing wastewater A in the production of brominated butyl rubber into a dissolved air flotation tank 1, adding a coagulant B to remove large-particle colloidal particle substances and organic pollutants, introducing effluent of the dissolved air flotation tank 1 into a filter 2 for filtering to ensure that the turbidity of the effluent is less than a preset value, and introducing the purified water into a buffer tank C from the filter 2.
S2: the purified water is extracted from the buffer tank C by a pump, enters a preheater 6 and is preheated to 70-85 ℃, the preheating medium is steam C, then the preheated wastewater enters a distillation tower 8 from the top of the distillation tower 8, and simultaneously chlorine E and the steam C enter the distillation tower 8 from the bottom of the distillation tower 8, and the following chemical reactions occur: 2NaBr + Cl2＝2NaCl+ Br2Controlling the temperature at the top of the tower to be 80-95 ℃, the pressure of steam C to be 0.40Mpa, the chlorine-gas-to-chlorine ratio to be 1.2, discharging the low-bromine-content wastewater subjected to debromination treatment from the bottom of a distillation tower 2 into a neutralization kettle 10, neutralizing the wastewater by using a dilute alkali solution H and adjusting the pH value of the wastewater, discharging the wastewater into a sewage treatment system, discharging crude bromine steam consisting of bromine steam, partial water vapor and chlorine obtained after reaction from the top of the distillation tower 8 into a bromine steam condenser group 9, introducing the liquid condensed by condensed water D into a bromine-water separator 11, and obtaining bromine and bromine water in the bromine-water separator 11When the separation is finished, water containing bromine at the upper part of the bromine water separator 11 overflows back to the distillation tower 8 through an overflow pipeline, the separated crude bromine F enters a crude bromine rectification system from the bottom of the bromine water separator 11, and the non-condensable gas enters a tail gas condenser group 19 from the top of the bromine water separator 11.
S3: crude bromine F obtained after separation from a bromine-water separator 11 enters from the top of a primary rectifying tower 12, after primary rectification, bromine steam and chlorine mixed in bromine enter a primary condenser group 13 together, after condensation of the primary condenser group 13, liquid bromine enters a secondary rectifying tower 14 from the bottom of the primary rectifying tower 12, most of the chlorine enters a tail gas condenser group 19 through the primary condenser group 13 for recovery, and the temperature of the top of the primary rectifying tower 12 is controlled to be 43-58 ℃; the crude bromine entering the second-stage rectifying tower 14 is further rectified, bromine steam enters the second-stage condenser group 15 to be condensed and then enters the third-stage distilling tower 16, the crude bromine entering the third-stage distilling tower 16 is further rectified, the bromine steam enters the third-stage condenser group 17 to be condensed and then enters the refined bromine condenser 18, non-condensable gas condensed by the second-stage condenser group 15 and the third-stage condenser group 17 enters the tail gas condenser group 19 to be recovered, the tower top temperature of the second-stage rectifying tower 14 and the third-stage rectifying tower 16 is controlled to be 45-60 ℃, and non-volatile substances are deposited at the bottoms of the first-stage rectifying tower 12, the second-stage rectifying tower 14 and the third-stage rectifying tower 16 to be periodically discharged.
S4: bromine obtained after the three-stage rectification is further cooled by a refined bromine condenser 18 to obtain a finished bromine G, and the finished bromine G is used as a raw material for producing brominated butyl rubber and returns to the butyl rubber bromination reaction procedure for production and use.
S5: the non-condensable gas from the bromine water separator 11, the first-stage condenser group 13, the second-stage condenser group 15 and the third-stage condenser group 17 enters the tail gas condenser group 19 and is condensed by condensed water D, liquid returns to the bromine water separator 11, and the non-condensable gas enters the tail gas recovery tower 20 to be treated.
S6: the noncondensable gas which is not condensed and contains part of chlorine and bromine steam enters a tail gas recovery tower 20, bromine-containing wastewater A which is from a buffer tank 3 and is cooled to 40-50 ℃ by a first cooler 7 is introduced into the tail gas recovery tower 20, the bromine-containing wastewater A absorbs the chlorine in the noncondensable gas, liquid bromine-containing water phase generated by the reaction returns to a distillation tower 8, the bromine steam in the noncondensable gas enters a tail gas alkaline washing tower 21 for absorption, the absorbed alkali liquor flows back to the tail gas alkaline washing tower 21 through an alkaline washing tank 22 and a second cooler 23 until the content of bromine ions in the alkali liquor in the tail gas alkaline washing tower 21 reaches 10g/L, the alkali liquor is replaced, and high-concentration bromine water I discharged from the alkaline washing tank 22 returns to the dissolved gas floatation tank 1 for bromine extraction again.
The utility model discloses a bromine-containing waste water treatment device adopts steam distillation's method to administer the bromine-containing waste water in the production of brominated butyl rubber, make more than 90% bromine obtain retrieving in the bromine-containing waste water, it is up to standard to discharge waste water, and bromine impurity after retrieving is less, can directly be used for the production of brominated butyl rubber, effectively improve the utilization ratio of bromine, also carry out the recovery of bromine to the tail gas that the distillation process produced in addition, the pollution to the environment has been reduced, the environmental protection requirement has been reached, the enterprise cost has still been reduced, economic benefits has been improved, therefore, the clothes hanger is strong in practicability, and is suitable for being generalized to use.
It should be understood that this example is for illustrative purposes only and is not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
Claims (10)
1. The utility model provides a bromine-containing wastewater treatment device which characterized in that: the device comprises a wastewater purification system, a wastewater distillation system, a crude bromine rectification system and a tail gas recovery system; the wastewater purification system comprises a dissolved air flotation tank (1), a filter (2) and a buffer tank (3) which are connected in sequence through pipelines; the wastewater distillation system comprises a preheater (6), a distillation tower (8), a bromine steam condenser group (9) and a bromine water separator (11), wherein a water inlet of the preheater (6) is connected with a water outlet of the buffer tank (3), a water inlet of the distillation tower (8) is connected with a water outlet of the preheater (6), a bromine steam outlet of the distillation tower (8) is connected with an inlet of the bromine steam condenser group (9), an outlet of the bromine steam condenser group (9) is connected with an inlet of the bromine water separator (11), and an overflow pipeline is arranged between the bromine water separator (11) and the distillation tower (8); the crude bromine rectification system comprises a rectification tower set and a refined bromine condenser (18), wherein a water inlet of the rectification tower set is connected with an outlet at the bottom of the bromine-water separator (11), and an outlet of the rectification tower set is connected with an inlet of the refined bromine condenser (18); the tail gas recovery system comprises a tail gas condenser group (19), a first cooler (7) and a tail gas recovery tower (20), wherein gas phase outlets of the bromine-water separator (11) and the rectification tower group are connected with an inlet of the tail gas condenser group (19), an outlet of the tail gas condenser group (19) is connected with an inlet of the bromine-water separator (11) on one hand, and is also connected with a bottom inlet of the tail gas recovery tower (20) on the other hand, an inlet of the first cooler (7) is connected with an outlet of the buffer tank (3), an outlet of the first cooler (7) is connected with a top inlet of the tail gas recovery tower (20), and a bottom outlet of the tail gas recovery tower (20) is connected with a water inlet of the distillation tower (8).
2. The bromine-containing wastewater treatment apparatus according to claim 1, characterized in that: a first flowmeter (4) is arranged between the preheater (6) and the buffer tank (3), and a second flowmeter (5) is arranged between the first cooler (7) and the buffer tank (3).
3. The bromine-containing wastewater treatment apparatus according to claim 1, characterized in that: the bromine steam condenser group (9) is provided with 2-4 condensers in parallel.
4. The bromine-containing wastewater treatment apparatus according to claim 1, characterized in that: and a bottom outlet of the distillation tower (8) is connected with a neutralization kettle (10).
5. The bromine-containing wastewater treatment apparatus according to claim 1, characterized in that: the rectification tower group comprises a primary rectification tower (12), a secondary rectification tower (14), a tertiary rectification tower (16), a primary condenser group (13), a secondary condenser group (15) and a tertiary condenser group (17), wherein an inlet of the primary rectification tower (12) is connected with a bottom outlet of the bromine-water separator (11), a bottom outlet of the primary rectification tower (12) is connected with a middle inlet of the secondary rectification tower (14), an upper outlet of the secondary rectification tower (14) is connected with a middle inlet of the tertiary rectification tower (16), and an upper outlet of the tertiary rectification tower (16) is connected with an inlet of the bromine rectifying condenser (18); the import of one-level condenser group (13) links to each other with the top export of one-level rectifying column (12), the import of second grade condenser group (15) links to each other with the top export of second grade rectifying column (14), the import of third grade condenser group (17) links to each other with the top export of tertiary rectifying column (16), and the gaseous phase export of one-level condenser group (13), second grade condenser group (15) and third grade condenser group (17) all links to each other with the import of tail gas condenser group (19).
6. The bromine-containing wastewater treatment apparatus according to claim 5, characterized in that: the tail gas condenser group (19) is provided with 2-4 condensers in parallel.
7. The bromine-containing wastewater treatment apparatus according to claim 1, characterized in that: the tail gas recovery system further comprises a tail gas alkaline washing tower (21), an alkaline washing tank (22) and a second cooler (23), wherein an inlet at the lower part of the tail gas alkaline washing tower (21) is connected with an outlet at the top of the tail gas recovery tower (20), an outlet at the bottom of the tail gas alkaline washing tower (21) is connected with an inlet of the alkaline washing tank (22), an outlet of the alkaline washing tank (22) is connected with an inlet of the second cooler (23), and an outlet of the second cooler (23) is connected with an inlet at the top of the tail gas alkaline washing tower (21).
8. The bromine-containing wastewater treatment apparatus according to claim 5, characterized in that: the preheating temperature of the preheater (6) is 70-85 ℃.
9. The bromine-containing wastewater treatment apparatus according to claim 8, characterized in that: the distillation tower (8) is a packed tower, the material of the tower body is a lining tetrafluoro or glass tower, and the temperature of the top of the tower is 80-95 ℃.
10. The bromine-containing wastewater treatment apparatus according to claim 9, characterized in that: the first-stage rectifying tower (12), the second-stage rectifying tower (14) and the third-stage rectifying tower (16) are all packed towers, the tower body is made of a lining tetrafluoro or glass tower, the tower top temperature of the first-stage rectifying tower (12) is 43-58 ℃, and the tower top temperature of the second-stage rectifying tower (14) and the third-stage rectifying tower (16) is 45-60 ℃; and the packing of the distillation tower (8), the first-stage rectifying tower (12), the second-stage rectifying tower (14) and the third-stage rectifying tower (16) is regular ceramic packing or glass packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021729508.2U CN212954710U (en) | 2020-08-18 | 2020-08-18 | Bromine-containing wastewater treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021729508.2U CN212954710U (en) | 2020-08-18 | 2020-08-18 | Bromine-containing wastewater treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212954710U true CN212954710U (en) | 2021-04-13 |
Family
ID=75356605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021729508.2U Active CN212954710U (en) | 2020-08-18 | 2020-08-18 | Bromine-containing wastewater treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212954710U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115196598A (en) * | 2022-06-29 | 2022-10-18 | 天津长芦汉沽盐场有限责任公司 | Oxidation distillation tail gas treatment process and system in bromine production process |
-
2020
- 2020-08-18 CN CN202021729508.2U patent/CN212954710U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115196598A (en) * | 2022-06-29 | 2022-10-18 | 天津长芦汉沽盐场有限责任公司 | Oxidation distillation tail gas treatment process and system in bromine production process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102101651B (en) | Method and device for refining chlorine hydride byproduct and recovering trifluoromethane in production of monochlorodifluoromethane | |
| CN103145150B (en) | Technology and device for recycling sodium chloride from wastewater generated in process of producing silica sol by ion exchange method | |
| CN108774163B (en) | Method for recovering and purifying NMP (N-methyl pyrrolidone) in lithium battery production | |
| CN105036507A (en) | Pyrolysis oil-gas-water synchronous condensing and oil-water separation recovery system and method | |
| CN212954710U (en) | Bromine-containing wastewater treatment device | |
| CN106866368A (en) | Alcoholic gas field sewage methanol recovery device and technique based on air- extraction and vacuum membrane distillation method | |
| CN112390445B (en) | Method and system for treating phenol-ammonia wastewater | |
| CN112624477A (en) | Treatment device and treatment method for phenolic sodium salt decomposition wastewater | |
| CN109438172A (en) | The recovery method of methyl chloride gas in a kind of production of maltol | |
| CN104263421B (en) | Coke oven gas purification method | |
| CN103694079B (en) | Method for refining and purifying vinyl chloride monomer | |
| CN112661115A (en) | Separation and purification method for deep dehydration and impurity removal of FTrPSA refined by anhydrous HF produced by fluorite method | |
| CN105480981A (en) | Method and device for recovering dichlorosilane from tail gas in reduction production of polysilicon | |
| CN104923026B (en) | Polysilicon tail gas recovering method and device thereof | |
| CN102502701A (en) | Production process and preparation method of ultrapure ammonia | |
| CN114671405A (en) | Process for preparing high-purity hydrogen chloride from by-product hydrochloric acid in methane chloride process | |
| CN110668456A (en) | Purification method and device of high-purity boron tribromide | |
| CN208430057U (en) | A kind of system purifying chloromethanes | |
| CN105060249A (en) | Method for preparing refined hydrochloric acid by using tail gas hydrogen chloride produced in chloroacetic acid production | |
| CN206955650U (en) | A kind of purification system of fume colloidal silica production silicon tetrachloride | |
| CN212655471U (en) | Sulfuric acid recovery system | |
| CN210973903U (en) | Device for preparing high-purity boron tribromide | |
| CN218709342U (en) | Recovery processing system of DMF waste water | |
| CN216703401U (en) | High-efficient composite set that retrieves of solvent chlorobenzene in naphthol production | |
| CN220317419U (en) | Recycling recovery system of ammonia-containing wastewater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |