CN215440024U - Butadiene waste water processing system - Google Patents
Butadiene waste water processing system Download PDFInfo
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- CN215440024U CN215440024U CN202023314313.4U CN202023314313U CN215440024U CN 215440024 U CN215440024 U CN 215440024U CN 202023314313 U CN202023314313 U CN 202023314313U CN 215440024 U CN215440024 U CN 215440024U
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Abstract
The utility model relates to a butadiene production wastewater treatment system which comprises a stripping tower (1), a reaction tank (2), a filter (3) and a distillation tower (4), wherein the stripping tower (1) is connected with the reaction tank (2) through a pipeline, the bottom end of the reaction tank (2) is connected with the filter (3) through a pipeline, the filter (3) is connected with the distillation tower (4), a heat exchanger (5) is arranged between the filter (3) and the distillation tower (4), and an air outlet at the upper end of the distillation tower (4) is connected with the heat exchanger (5) through a pipeline. The waste water treatment system is provided with the two reaction towers and the filter which are connected in parallel, so that the continuity and the treatment efficiency of waste water treatment are ensured, the heat exchanger is arranged in the waste water treatment system, the heat energy of distilled gas is effectively utilized, and the energy utilization is reduced. The wastewater treatment system has the advantages of ingenious structural arrangement, high treatment efficiency, economy and the like.
Description
Technical Field
The utility model relates to the technical field of organic matter wastewater treatment, in particular to a butadiene production wastewater treatment system.
Background
Butadiene is an important petrochemical basic organic raw material and a synthetic rubber monomer, and has wide application in aspects of synthetic rubber, organic synthesis and the like. The butadiene is mainly obtained by extracting from a mixed C4 fraction which is a byproduct of an ethylene cracking device and performing oxidative dehydrogenation on butene which is a C4 fraction in an oil refinery. In the production process of butadiene through oxidative dehydrogenation of butylene, a large amount of water vapor is introduced into reaction raw materials for ensuring safe production, dehydrogenation reaction generates water and product washing water, 16 tons of wastewater is generated when 1 ton of butadiene is produced, the wastewater contains acetone, furan, acetaldehyde, acetic acid, acrolein, methylacrolein, butane, butadiene, butylene and other components, the concentration is high, the wastewater is highly toxic and difficult to treat, and the treatment of the butadiene wastewater becomes one of the biggest problems of industrialization of the production process of butadiene through oxidative dehydrogenation of butylene.
A lot of waste water is generated in the process of producing butadiene, the generated waste water needs to be subjected to a plurality of steps of steam stripping, pH value adjustment, oxidation, flocculation, standing, filtration, distillation and the like, a large amount of equipment is needed, and the existing sewage treatment systems are not suitable for treating the waste water generated in butadiene production. Therefore, the utility model designs the butadiene production wastewater treatment system which can save energy, save equipment and improve the wastewater treatment efficiency.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model discloses a butadiene production wastewater treatment system
The utility model provides a butadiene waste water processing system, includes strip tower (1), retort (2), filter (3), distillation column (4), passes through the pipe connection between strip tower (1) and retort (2), the bottom of retort (2) pass through the pipeline and be connected with filter (3), filter (3) be connected with distillation column (4), filter (3) and distillation column (4) between be provided with heat exchanger (5), the upper end gas outlet of distillation column (4) pass through the pipeline and be connected with heat exchanger (5), steam on the gas outlet heats for the waste water that is about to get into in distillation column (4) to the energy can be saved.
Further, the bottom of retort (2) is passed through the pipeline and is still connected with spare filter (6), spare filter (6) pass through the pipeline and be connected with heat exchanger (5), spare filter (6) are parallelly connected with filter (3), when filter (3) filter effect is not good, start spare filter (6) to guarantee the continuity of waste water treatment, thereby improve waste water treatment's efficiency.
Further, the stripping tower (1) is connected with a standby reaction tank (7) through a pipeline, and the standby reaction tank (7) is identical to the reaction tank (2) in structure and is arranged in parallel with the reaction tank (2). In the waste water treatment process, the processes that go on in the retort are more, accomplish a plurality of reaction steps of pH value regulation, oxidation, flocculation, stewing in the retort, and the time that needs is longer, consequently set up reserve retort to guarantee waste water treatment's continuity, improve waste water treatment efficiency.
Further, retort (2) in be provided with stirring rake (8), the top surface of retort (2) on install motor (9), stirring rake (8) be connected with motor (9) to stir the material in retort (2), the top surface of retort (2) on be provided with a plurality of reagents and add mouth (10).
Further, filter (3) including filter funnel (301) and filtrating storage tank (302), filtrating storage tank (302) internally mounted have stirring rake (8), filtrating storage tank (302) top be provided with filling opening (3021), filtrating storage tank (302) top be provided with motor (9), motor (9) are connected with the upper end of stirring rake (8), are convenient for adjust the pH value of filtrating.
The method comprises the steps of firstly carrying out steam stripping on butadiene wastewater in a stripping tower to remove low-boiling-point components in the butadiene wastewater, then carrying out pH value adjustment on the steam-stripped wastewater in a reaction tank, adding fenton reagent, stirring for oxidation reaction, adding a flocculating agent, stirring, standing, filtering in a filter, neutralizing the filtrate with alkali liquor to be neutral, and distilling the filtrate to obtain a colorless transparent water sample with COD (chemical oxygen demand) less than 100, wherein the colorless transparent water sample can enter a boiler and a circulating water system.
The utility model has the beneficial effects that: the waste water treatment system is provided with the two reaction towers and the filter which are connected in parallel, so that the continuity and the treatment efficiency of waste water treatment are ensured, the heat exchanger is arranged in the waste water treatment system, the heat energy of distilled gas is effectively utilized, the energy utilization is reduced, and the economic and economical effects are achieved. The wastewater treatment system has the advantages of ingenious structural arrangement, high treatment efficiency, economy and the like.
Drawings
FIG. 1 is a schematic structural diagram of a butadiene production wastewater treatment system in an embodiment of the utility model.
FIG. 2 is a schematic structural diagram of a filter of a butadiene production wastewater treatment system in an embodiment of the present invention.
List of reference numerals: 1-stripping tower, 2-reaction tank, 3-filter, 4-distillation tower, 5-heat exchanger, 6-spare filter, 7-spare reaction tank, 8-stirring paddle, 9-motor, 10-reagent feeding port, 301-filtering funnel, 302-filtrate storage tank and 3021-feeding port.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the utility model and not as limiting the scope of the utility model. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
With reference to figures 1 and 2 of the drawings,
the utility model provides a butadiene waste water processing system, including strip tower 1, retort 2, filter 3, distillation column 4, strip tower 1 and retort 2 between through the pipe connection, retort 2's bottom is passed through the pipeline and is connected with filter 3, filter 3 is connected with distillation column 4, be provided with heat exchanger 5 between filter 3 and the distillation column 4, the upper end gas outlet of distillation column 4 passes through the pipeline and is connected with heat exchanger 5, the waste water that will get into in distillation column 4 is heated for the steam in the gas outlet, thereby the energy can be saved.
Further, the bottom of retort 2 is passed through the pipeline and is still connected with spare filter 6, and spare filter 6 passes through the pipeline and is connected with heat exchanger 5, and spare filter 6 is parallelly connected with filter 3, and when filter 3 filter effect was not good, launches spare filter 6 to guarantee waste water treatment's continuity, thereby improve waste water treatment's efficiency.
Further, stripping tower 1 is connected with spare reaction tank 7 through the pipeline, and spare reaction tank 7 is the same with retort 2's structure, and sets up with retort 2 parallelly connected. In the waste water treatment process, the processes that go on in the retort are more, accomplish a plurality of reaction steps of pH value regulation, oxidation, flocculation, stewing in the retort, and the time that needs is longer, consequently set up reserve retort to guarantee waste water treatment's continuity, improve waste water treatment efficiency.
Further, be provided with stirring rake 8 in retort 2, install motor 9 on retort 2's the top surface, stirring rake 8 is connected with motor 9 to stir the material in retort 2, be provided with a plurality of reagent inlets 10 on retort 2's the top surface.
Further, filter 3 includes filter funnel 301 and filtrating storage tank 302, and filtrating storage tank 302 internally mounted has stirring rake 8, and filtrating storage tank 302 top is provided with filling opening 3021, and filtrating storage tank 302 top is provided with motor 9, and motor 9 is connected with stirring rake 8's upper end, is convenient for adjust the pH value of filtrating.
The method comprises the steps of firstly carrying out steam stripping on butadiene wastewater in a stripping tower to remove low-boiling-point components in the butadiene wastewater, then carrying out pH value adjustment on the steam-stripped wastewater in a reaction tank, adding fenton reagent, stirring for oxidation reaction, adding a flocculating agent, stirring, standing, filtering in a filter, neutralizing the filtrate with alkali liquor to be neutral, and distilling the filtrate to obtain a colorless transparent water sample with COD (chemical oxygen demand) less than 100, wherein the colorless transparent water sample can enter a boiler and a circulating water system.
The technical means disclosed in the utility model scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features.
Claims (5)
1. The utility model provides a butadiene waste water processing system, its characterized in that includes strip tower (1), retort (2), filter (3), distillation column (4), passes through the pipe connection between strip tower (1) and retort (2), the bottom of retort (2) pass through the pipeline and be connected with filter (3), filter (3) be connected with distillation column (4), filter (3) and distillation column (4) between be provided with heat exchanger (5), the upper end gas outlet of distillation column (4) pass through the pipeline and be connected with heat exchanger (5), the waste water that will get into in distillation column (4) is heated for the steam in the gas outlet to the energy can be saved.
2. The butadiene production wastewater treatment system according to claim 1, wherein the bottom end of the reaction tank (2) is further connected with a backup filter (6) through a pipeline, the backup filter (6) is connected with the heat exchanger (5) through a pipeline, the backup filter (6) is connected with the filter (3) in parallel, and when the filter (3) has poor filtering effect, the backup filter (6) is used, so that the continuity of wastewater treatment is ensured, and the efficiency of wastewater treatment is improved.
3. The butadiene production wastewater treatment system according to claim 1, wherein the stripping tower (1) is connected with a spare reaction tank (7) through a pipeline, and the spare reaction tank (7) and the reaction tank (2) have the same structure and are arranged in parallel with the reaction tank (2).
4. The butadiene production wastewater treatment system according to claim 1, wherein a stirring paddle (8) is arranged in the reaction tank (2), a motor (9) is installed on the top surface of the reaction tank (2), the stirring paddle (8) is connected with the motor (9) so as to stir materials in the reaction tank (2), and a plurality of reagent feeding ports (10) are arranged on the top surface of the reaction tank (2).
5. The butadiene production wastewater treatment system according to claim 1, wherein the filter (3) comprises a filter funnel (301) and a filtrate storage tank (302), a stirring paddle (8) is installed inside the filtrate storage tank (302), a liquid adding port (3021) is arranged at the top of the filtrate storage tank (302), a motor (9) is arranged at the top of the filtrate storage tank (302), and the motor (9) is connected with the upper end of the stirring paddle (8) so as to adjust the pH value of the filtrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023314313.4U CN215440024U (en) | 2020-12-31 | 2020-12-31 | Butadiene waste water processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023314313.4U CN215440024U (en) | 2020-12-31 | 2020-12-31 | Butadiene waste water processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215440024U true CN215440024U (en) | 2022-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023314313.4U Active CN215440024U (en) | 2020-12-31 | 2020-12-31 | Butadiene waste water processing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215440024U (en) |
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2020
- 2020-12-31 CN CN202023314313.4U patent/CN215440024U/en active Active
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