CN215365366U - Ammonia nitrogen removing device for polymerization centrifugal mother liquor - Google Patents
Ammonia nitrogen removing device for polymerization centrifugal mother liquor Download PDFInfo
- Publication number
- CN215365366U CN215365366U CN202121691473.2U CN202121691473U CN215365366U CN 215365366 U CN215365366 U CN 215365366U CN 202121691473 U CN202121691473 U CN 202121691473U CN 215365366 U CN215365366 U CN 215365366U
- Authority
- CN
- China
- Prior art keywords
- sodium hypochlorite
- polymerization
- mother liquor
- ammonia nitrogen
- centrifugal mother
- 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.)
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Links
- 239000012452 mother liquor Substances 0.000 title claims abstract description 46
- 238000006116 polymerization reaction Methods 0.000 title claims abstract description 42
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 239000005708 Sodium hypochlorite Substances 0.000 claims abstract description 59
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims abstract description 57
- 239000007788 liquid Substances 0.000 claims abstract description 39
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 15
- 230000003647 oxidation Effects 0.000 claims abstract description 7
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 7
- 239000000243 solution Substances 0.000 claims description 18
- 230000007062 hydrolysis Effects 0.000 claims description 8
- 238000006460 hydrolysis reaction Methods 0.000 claims description 8
- 230000020477 pH reduction Effects 0.000 claims description 4
- 238000005070 sampling Methods 0.000 claims description 4
- 238000004062 sedimentation Methods 0.000 claims description 4
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 3
- 239000010413 mother solution Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 239000002351 wastewater Substances 0.000 abstract description 12
- 238000005119 centrifugation Methods 0.000 abstract description 11
- 238000004065 wastewater treatment Methods 0.000 abstract description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 3
- 239000003513 alkali Substances 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 229910001873 dinitrogen Inorganic materials 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 2
- 238000003912 environmental pollution Methods 0.000 description 5
- 238000005273 aeration Methods 0.000 description 2
- 239000007853 buffer solution Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000379 polymerizing effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 1
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 description 1
- 235000012538 ammonium bicarbonate Nutrition 0.000 description 1
- 239000001099 ammonium carbonate Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The utility model provides an ammonia nitrogen removal device for polymerization centrifugal mother liquor, and relates to the technical field of chemical wastewater treatment in the chlor-alkali industry. The ammonia nitrogen removal device for the polymerization centrifugal mother liquor comprises a pipeline mixer, an electromagnetic flowmeter, a sodium hypochlorite storage tank and a sodium hypochlorite metering pump. The pipeline mixer is provided with a liquid inlet, a liquid inlet and a liquid outlet. The liquid inlet is used for conveying the polymerization centrifugal mother liquid, and the agent inlet is used for conveying the sodium hypochlorite solution. And the electromagnetic flow meter is arranged on the liquid inlet. A sodium hypochlorite storage tank having an inlet and an outlet. And the sodium hypochlorite metering pump is used for communicating the agent outlet with the agent inlet. The sodium hypochlorite metering pump is associated with an electromagnetic flow meter. Through letting in sodium hypochlorite solution and polymerization centrifugation mother liquor in the pipeline mixer, make sodium hypochlorite solution and polymerization centrifugation mother liquor intensive mixing reaction in pipeline mixer and follow-up pipeline to with the ammonia nitrogen oxidation of polymerization centrifugation mother liquor waste water for nitrogen gas gets rid of, and then reach the purpose of getting rid of the ammonia nitrogen.
Description
Technical Field
The utility model relates to the technical field of chemical wastewater treatment in the chlor-alkali industry, in particular to an ammonia nitrogen removal device for a polymerization centrifugal mother solution.
Background
Ammonium bicarbonate NH is generally adopted in the suspension method PVC production process4HCO3As a buffer solution, the buffer solution is a main source of ammonia nitrogen in the PVC centrifugal mother liquor wastewater, and the content of the ammonia nitrogen in the wastewater is about 25 mg/L. At present, most chlor-alkali enterprises adopt a biochemical treatment method, and the treatment focuses on reducing CODcrContent, but low ammonia nitrogen removal efficiency. The ammonia nitrogen discharge value after the existing centrifugal mother liquor wastewater treatment is about 10mg/L, the discharge standard of 3 (5) mg/L (the control value when the water temperature is lower than 12 ℃ in brackets) in a park can not be met, and the risk of environmental pollution exists.
SUMMERY OF THE UTILITY MODEL
Aiming at the situation, the utility model provides an ammonia nitrogen removal device for polymerization centrifugal mother liquor, which solves the technical problems that the ammonia nitrogen discharge value after the existing centrifugal mother liquor wastewater treatment cannot meet the discharge standard of a park and the risk of environmental pollution exists.
In order to achieve the purpose, the utility model provides the following technical scheme:
an ammonia nitrogen removal device for polymerization centrifugal mother liquor mainly comprises: pipeline mixer, electromagnetic flowmeter, sodium hypochlorite storage tank and sodium hypochlorite measuring pump.
The pipeline mixer is provided with a liquid inlet, a liquid inlet and a liquid outlet. The liquid inlet is used for conveying the polymerization centrifugal mother liquid, and the agent inlet is used for conveying the sodium hypochlorite solution.
And the electromagnetic flow meter is arranged on the liquid inlet.
A sodium hypochlorite storage tank having an inlet and an outlet.
And the sodium hypochlorite metering pump is used for communicating the agent outlet with the agent inlet. The sodium hypochlorite metering pump is associated with an electromagnetic flow meter.
In some embodiments of the present invention, the conduit mixer is made of a titanium alloy.
In some embodiments of the utility model, the sodium hypochlorite storage tank is equipped with a level gauge.
In some embodiments of the utility model, the sodium hypochlorite storage tank is equipped with a level transmitter.
In some embodiments of the utility model, the concentration of the sodium hypochlorite solution is 10%.
In some embodiments of the utility model, the upper portion of the sodium hypochlorite storage tank is provided with an overflow port.
In some embodiments of the utility model, the liquid outlet is provided with a sampling port.
In some embodiments of the utility model, the liquid inlet is communicated with a spare pipeline.
In some embodiments of the utility model, the ammonia nitrogen removal device for the polymerization centrifugal mother liquor further comprises a hydrolysis acidification tank, a hydrolysis oxidation tank, a sedimentation tank, a biological aerated filter and a precision filter which are connected in sequence, wherein the precision filter is communicated with the liquid inlet.
The embodiment of the utility model at least has the following advantages or beneficial effects:
through letting in sodium hypochlorite solution and polymerization centrifugation mother liquor in the pipe-line mixer, make sodium hypochlorite solution and polymerization centrifugation mother liquor intensive mixing reaction in pipe-line mixer and follow-up pipeline to ammonia nitrogen oxidation in the centrifugation mother liquor waste water of will polymerizing gets rid of for nitrogen gas, and then reaches the purpose of getting rid of the ammonia nitrogen, so that the ammonia nitrogen discharge value in the polymerization centrifugation mother liquor after making the processing can satisfy garden discharge standard, reduces the risk that causes environmental pollution. Electromagnetic flowmeter can detect waste water flow, and the sodium hypochlorite measuring pump is from taking electric actuator. The opening of the sodium hypochlorite metering pump is automatically adjusted according to the fixed ratio of the electric actuator to the flow of the wastewater so as to achieve the purpose of accurately controlling the sodium hypochlorite solution.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an ammonia nitrogen removal device for a polymerization centrifugal mother liquor.
Icon: 11-pipeline mixer, 111-liquid inlet, 112-agent inlet, 113-liquid outlet, 114-sampling port, 115-standby pipeline, 12-electromagnetic flowmeter, 13-sodium hypochlorite storage tank, 131-inlet, 132-agent outlet, 133-liquid level meter, 134-liquid level transmitter, 135-overflow port and 14-sodium hypochlorite metering pump.
Detailed Description
In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the embodiments of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.
In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1, the present embodiment provides an ammonia nitrogen removal device for polymerization centrifugal mother liquor, which mainly includes: a pipeline mixer 11, an electromagnetic flowmeter 12, a sodium hypochlorite storage tank 13 and a sodium hypochlorite metering pump 14.
The line mixer 11 has a liquid inlet 111, a liquid inlet 112 and a liquid outlet 113. The liquid inlet 111 is used for conveying the polymerization centrifugal mother liquor, and the agent inlet 112 is used for conveying a sodium hypochlorite solution so as to enable the sodium hypochlorite solution and the polymerization centrifugal mother liquor wastewater to be capable of being fully mixed and reacted.
And the electromagnetic flow meter 12 is arranged on the liquid inlet 111 and used for detecting the flow of the polymerization centrifugal mother liquor wastewater.
Sodium hypochlorite storage tank 13 having inlet 131 and outlet 132. The arrangement of inlet 131 is convenient for let in sodium hypochlorite solution to in the sodium hypochlorite storage tank 13, and the arrangement of agent outlet 132 is convenient for let in sodium hypochlorite solution in the sodium hypochlorite storage tank 13 in the pipe mixer 11.
And a sodium hypochlorite metering pump 14 for communicating the agent outlet 132 and the agent inlet 112. A sodium hypochlorite dosing pump 14 is associated with the electromagnetic flow meter 12. The sodium hypochlorite metering pump 14 is provided with an electric actuator. The opening of the sodium hypochlorite metering pump 14 is automatically adjusted according to the fixed ratio of the electric actuator to the flow of the wastewater so as to achieve the purpose of accurately controlling the sodium hypochlorite solution.
Through letting in sodium hypochlorite solution and polymerization centrifugation mother liquor in pipe-line mixer 11, make sodium hypochlorite solution and polymerization centrifugation mother liquor intensive mixing reaction in pipe-line mixer 11 and follow-up pipeline to ammonia nitrogen oxidation in the centrifugation mother liquor waste water of will polymerizing gets rid of for nitrogen gas, and then reaches the purpose of getting rid of ammonia nitrogen, so that the ammonia nitrogen discharge value in the polymerization centrifugation mother liquor after making the processing can satisfy garden discharge standard, reduces the risk that causes environmental pollution.
Verified by laboratory analysis: the sodium hypochlorite solution with a certain concentration is added into the polymerization centrifugal mother liquor after each treatment, so that the ammonia nitrogen value in the polymerization centrifugal mother liquor can be effectively reduced, and the discharge indexes such as PH, COD and the like of the wastewater cannot be influenced. Preferably, in this embodiment, 0.4L of 10% sodium hypochlorite is added to the polymeric centrifugal mother liquor after each treatment, so that the ammonia nitrogen value in the polymeric centrifugal mother liquor can be reduced to 3mg/L or even lower, and meanwhile, the discharge indexes such as PH and COD of wastewater cannot be affected.
The connection and function of the various components of the ammonia nitrogen removal device for the polymerization centrifuge mother liquor are generally described above, and the ammonia nitrogen removal device for the polymerization centrifuge mother liquor will be described in more detail below.
The ammonia nitrogen removal device for the polymerization centrifugal mother liquor can also comprise a hydrolysis acidification tank, a hydrolysis oxidation tank, a sedimentation tank, an aeration biological filter and a precision filter which are sequentially connected, wherein the precision filter is communicated with the liquid inlet 111. The polymerization centrifugal mother liquor is pretreated by a hydrolysis acidification tank, a hydrolysis oxidation tank, a sedimentation tank, an aeration biological filter and a precision filter and then is introduced into a pipeline mixer 11, so that the ammonia nitrogen discharge value in the treated polymerization centrifugal mother liquor can meet the discharge standard of a park, and the risk of causing environmental pollution is reduced.
The pipe mixer 11 may be made of, for example, titanium alloy, and has advantages of light weight, high specific strength, and good corrosion resistance.
The liquid level meter 133 can be installed to sodium hypochlorite storage tank 13, makes things convenient for the personnel of patrolling and examining to observe the liquid level in the sodium hypochlorite storage tank 13 to in time supply sodium hypochlorite solution.
Sodium hypochlorite storage tank 13 may be fitted with a level transmitter 134 to facilitate remote monitoring of the level of liquid in sodium hypochlorite storage tank 13.
The upper part of the sodium hypochlorite storage tank 13 can be provided with an overflow port 135 so as to discharge the solution in the sodium hypochlorite storage tank 13 to a designated place such as a drainage tank when the liquid level in the sodium hypochlorite storage tank 13 is too high.
The liquid outlet 113 may be provided with a sampling port 114 to perform detection and analysis on the sample, so as to take corresponding measures in time.
The liquid inlet 111 can be communicated with a standby pipeline 115 so as to ensure that the polymerization centrifugal mother liquor can normally enter the pipeline mixer 11 when the electromagnetic flowmeter 12 fails or needs to be overhauled, thereby ensuring the continuous operation of the ammonia nitrogen removal device of the polymerization centrifugal mother liquor.
The present invention is not limited to the above-described preferred embodiments, but various modifications and changes can be made by those skilled in the art, and the embodiments and features of the embodiments of the present invention can be combined with each other arbitrarily without conflict. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. An ammonia nitrogen removal device for polymerization centrifugal mother liquor is characterized by comprising:
the pipeline mixer is provided with a liquid inlet, a liquid inlet and a liquid outlet; the liquid inlet is used for conveying a polymerization centrifugal mother solution, and the agent inlet is used for conveying a sodium hypochlorite solution;
the electromagnetic flow meter is arranged on the liquid inlet;
a sodium hypochlorite storage tank having an inlet and an outlet; and
the sodium hypochlorite metering pump is used for communicating the agent outlet with the agent inlet; the sodium hypochlorite metering pump is associated with the electromagnetic flow meter.
2. The apparatus for removing ammonia nitrogen from polymerization centrifugal mother liquor as claimed in claim 1, wherein the material of said line mixer is titanium alloy.
3. The apparatus for removing ammonia nitrogen from polymerization centrifugal mother liquor as claimed in claim 1, wherein said sodium hypochlorite storage tank is equipped with a liquid level meter.
4. The apparatus for removing ammonia nitrogen from polymeric centrifugal mother liquor as claimed in claim 1, wherein said sodium hypochlorite storage tank is equipped with a level transmitter.
5. The apparatus for removing ammonia nitrogen from polymerization centrifugal mother liquor as claimed in claim 1, wherein the concentration of said sodium hypochlorite solution is 10%.
6. The apparatus for removing ammonia nitrogen from polymerization centrifugal mother liquor as claimed in claim 1, wherein an overflow port is provided at the upper part of said sodium hypochlorite storage tank.
7. The apparatus for removing ammonia nitrogen from polymerization centrifugal mother liquor as claimed in claim 1, wherein said outlet is provided with a sampling port.
8. The ammonia nitrogen removal device for polymerization centrifugal mother liquor as claimed in claim 1, wherein the liquid inlet is communicated with a spare pipeline.
9. The ammonia nitrogen removal device for the polymerization centrifugal mother liquor according to any one of claims 1 to 8, further comprising a hydrolysis acidification tank, a hydrolysis oxidation tank, a sedimentation tank, a biological aerated filter and a precision filter which are connected in sequence, wherein the precision filter is communicated with the liquid inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121691473.2U CN215365366U (en) | 2021-07-24 | 2021-07-24 | Ammonia nitrogen removing device for polymerization centrifugal mother liquor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121691473.2U CN215365366U (en) | 2021-07-24 | 2021-07-24 | Ammonia nitrogen removing device for polymerization centrifugal mother liquor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215365366U true CN215365366U (en) | 2021-12-31 |
Family
ID=79611381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121691473.2U Expired - Fee Related CN215365366U (en) | 2021-07-24 | 2021-07-24 | Ammonia nitrogen removing device for polymerization centrifugal mother liquor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215365366U (en) |
-
2021
- 2021-07-24 CN CN202121691473.2U patent/CN215365366U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211231 |
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| CF01 | Termination of patent right due to non-payment of annual fee |