CN211283984U - Nitrochlorobenzene high-nitrogen water extraction and separation system - Google Patents
Nitrochlorobenzene high-nitrogen water extraction and separation system Download PDFInfo
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- CN211283984U CN211283984U CN201922208888.9U CN201922208888U CN211283984U CN 211283984 U CN211283984 U CN 211283984U CN 201922208888 U CN201922208888 U CN 201922208888U CN 211283984 U CN211283984 U CN 211283984U
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Abstract
The utility model provides a nitrochlorobenzene high nitrogen water extraction piece-rate system, includes the extraction separation unit, the extraction separation unit includes alkali wash separator, first blender, high nitrogen water knockout drum, first machine pump, chlorobenzene storage tank, second machine pump, the waste water export on alkali wash separator upper portion is connected with the waste water entry of first blender, first blender still is equipped with chlorobenzene addition mouth, the export of first blender and the entry linkage of high nitrogen water knockout drum, the utility model discloses in, after the high nitrogen water that contains nitro-based thing that flows out on alkali wash separator upper portion entered first blender, the nitro-based thing of high nitrogen water can be dissolved in chlorobenzene, and chlorobenzene and the water that contains nitro-based thing are in getting into high nitrogen water knockout drum, and chlorobenzene that contains nitro-based thing subsides in the lower part of high nitrogen water knockout drum because of the effect of gravity, and the water on high nitrogen water knockout drum upper portion passes through the second machine pump and carries to sewage treatment device, because the content of the nitro-compound is greatly reduced, the expansion caused by pipeline caking is avoided.
Description
Technical Field
The utility model relates to a nitrochlorobenzene production facility technical field, in particular to nitrochlorobenzene high nitrogen water extraction piece-rate system.
Background
Contain high nitryl thing in the high nitrogen aquatic of nitrochlorobenzene production process production, when ambient temperature is low, the pipeline for carrying high nitrogen water can frequently appear binding material, makes the ability variation of delivering outward, often leads to the storehouse that expands and forced the parking, and behind the binding material of pump intracavity, the pump lacks the lubrication, and the machine that frequently appears the pump seals the damage, causes the production to break off, influences the normal clear of production.
Disclosure of Invention
In view of the above, there is a need for a nitrochlorobenzene high-nitrogen water extraction separation system for reducing the content of nitro-compounds in high-nitrogen water.
A nitrochlorobenzene high-nitrogen water extraction separation system comprises an extraction separation unit, wherein the extraction separation unit comprises an alkaline washing separator, a first mixer, a high-nitrogen water separation tank, a first pump, a chlorobenzene storage tank and a second pump, a wastewater outlet at the upper part of the alkaline washing separator is connected with a wastewater inlet of a first mixer, the first mixer is also provided with a chlorobenzene adding port, adding the benzene chloride as an extract of the nitro-compound into a first mixer, wherein the outlet of the first mixer is connected with the inlet of a high-nitrogen water separation tank, a chlorobenzene outlet at the lower part of the high nitrogen-water separation tank body is connected with an inlet of a first pump, an outlet of the first pump is connected with an inlet of a chlorobenzene storage tank, and a wastewater outlet at the upper part of the high-nitrogen water separation tank body is connected with an inlet of a second pump, and an outlet of the second pump is connected with an inlet of sewage treatment equipment.
Preferably, the nitrochlorobenzene high-nitrogen water extraction and separation system further comprises an alkaline washing unit, the alkaline washing unit comprises an acidic wastewater tank, a third pump, a second mixer, a high-order alkaline tank and an alkaline washing kettle, an outlet at the bottom of the acidic wastewater tank body is connected with an inlet of the third pump, a first wastewater outlet of the third pump is connected with a wastewater inlet of the second mixer, an outlet of the high-order alkaline tank is connected with an alkaline adding inlet of the second mixer, an outlet of the second mixer is connected with an inlet of the alkaline washing kettle, a wastewater outlet at the upper part of the alkaline washing kettle is connected with an inlet of the alkaline washing separator, and the alkaline washing kettle is further provided with an acidic material adding port.
Preferably, a second wastewater outlet of the third pump is connected with a wastewater inlet at the upper part of the acidic wastewater tank, and a first gate valve is arranged on a pipeline between the acidic wastewater tank and the third pump.
Preferably, a second gate valve is installed on a pipe between the third pump and the second mixer.
Preferably, the outlet of the high-level alkali tank is further connected with an alkali adding port of the acidic wastewater tank, a fourth gate valve is installed on a pipeline between the high-level alkali tank and the second mixer, and a third gate valve is installed on a pipeline between the high-level alkali tank and the acidic wastewater tank.
Preferably, the wastewater outlet at the upper part of the alkaline washing separator is also connected with the inlet of the third pump, a fifth gate valve is arranged on a pipeline between the alkaline washing separator and the third pump, and a sixth gate valve is arranged on a pipeline between the alkaline washing separator and the first mixer.
Preferably, the first mixer is a liquid-liquid extractor.
Preferably, a TDS meter is further arranged in the high nitrogen water separation tank and used for detecting the TDS content of the wastewater in the high nitrogen water separation tank.
Preferably, the extraction separation unit further comprises a metering pump, an inlet of the metering pump is used for introducing chlorobenzene, and an outlet of the metering pump is connected with a chlorobenzene adding port of the first mixer.
Preferably, the nitrochlorobenzene high-nitrogen water extraction and separation system further comprises a controller, wherein the controller is connected with the TDS meter, and the controller is connected with the metering pump.
The utility model discloses in, wash with alkaline after the high nitrogen water that contains nitro-group thing that separator upper portion flows gets into first blender, the high nitrogen water that contains nitro-group thing and the chlorobenzene intensive mixing who adds first blender, the nitro-group thing of high nitrogen water can be dissolved in the chlorobenzene, chlorobenzene and water that contain nitro-group thing are in getting into high nitrogen water knockout drum, the density of the chlorobenzene that contains nitro-group thing is greater than water, the chlorobenzene that contains nitro-group thing subsides in high nitrogen water knockout drum's lower part because of the effect of gravity, then carry to the chlorobenzene storage tank through first pump, the water on high nitrogen water knockout drum upper portion passes through the second pump and carries to sewage treatment device, further purification, because nitro-group thing content significantly reduces, the bloated storehouse that pipeline knot material arouses has been avoided, the production interrupt that the damage of machine pump caused has also been avoided.
Drawings
Fig. 1 is a schematic structural diagram of the nitrochlorobenzene high-nitrogen water extraction separation system.
In the figure: the system comprises an extraction separation unit 10, an alkaline washing separator 11, a fifth gate valve 111, a sixth gate valve 112, a first mixer 12, a high-nitrogen water separation tank 13, a first pump 14, a chlorobenzene storage tank 15, a second pump 16, a metering pump 17, an alkaline washing unit 20, an acidic wastewater tank 21, a third pump 22, a first gate valve 221, a second gate valve 222, a second mixer 23, a high-level alkaline tank 24, a third gate valve 241, a fourth gate valve 242 and an alkaline washing kettle 25.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Referring to fig. 1, an embodiment of the present invention provides a nitrochlorobenzene high-nitrogen water extraction separation system, including an extraction separation unit 10, the extraction separation unit 10 includes an alkaline washing separator 11, a first mixer 12, a high-nitrogen water separation tank 13, a first pump 14, a chlorobenzene storage tank 15, a second pump 16, a wastewater outlet at the upper portion of the alkaline washing separator 11 is connected to a wastewater inlet of the first mixer 12, the first mixer 12 is further provided with a chlorobenzene addition port to add chlorobenzene into the first mixer 12 as an extract of a nitro-group substance, an outlet of the first mixer 12 is connected to an inlet of the high-nitrogen water separation tank 13, a chlorobenzene outlet at the lower portion of the high-nitrogen water separation tank 13 is connected to an inlet of the first pump 14, an outlet of the first pump 14 is connected to an inlet of the chlorobenzene storage tank 15, a wastewater outlet at the upper portion of the high-nitrogen water separation tank 13 is connected to an inlet of the second pump 16, the outlet of the second pump 16 is connected to the inlet of the sewage treatment plant.
The utility model discloses in, wash with alkaline 11 upper portions flows out contain the high nitrogen water of nitryl thing and get into behind the first blender 12, the high nitrogen water that contains the nitryl thing and the chlorobenzene intensive mixing that adds first blender 12, the nitryl thing of high nitrogen water can be dissolved in the chlorobenzene, chlorobenzene and water that contain the nitryl thing are in getting into high nitrogen-water separation tank 13, the density of the chlorobenzene that contains the nitryl thing is greater than water, the chlorobenzene that contains the nitryl thing subsides in the lower part of high nitrogen-water separation tank 13 because of the effect of gravity, then carry to chlorobenzene storage tank 15 through first pump 14, the water on high nitrogen-water separation tank 13 upper portion passes through second pump 16 and carries to sewage treatment device, further purify, because nitryl content significantly reduces, avoided the bloated storehouse that pipeline knot material arouses, the production interrupt that the damage of machine pump caused has also been avoided.
Referring to fig. 1, further, the nitrochlorobenzene high-nitrogen water extraction and separation system further comprises an alkaline washing unit 20, the alkaline washing unit 20 comprises an acidic wastewater tank 21, a third pump 22, a second mixer 23, a high-level alkali tank 24 and an alkaline washing kettle 25, an outlet at the bottom of the tank body of the acidic wastewater tank 21 is connected with an inlet of the third pump 22, a first wastewater outlet of the third pump 22 is connected with a wastewater inlet of the second mixer 23, an outlet of the high-level alkali tank 24 is connected with an alkali adding inlet of the second mixer 23, an outlet of the second mixer 23 is connected with an inlet of the alkaline washing kettle 25, a wastewater outlet at the upper part of the alkaline washing kettle 25 is connected with an inlet of the alkaline washing separator 11, and the alkaline washing kettle 25 is further provided with an acidic material adding port.
Referring to fig. 1, a second waste water outlet of the third pump 22 is connected to a waste water inlet at an upper portion of the acidic waste water tank 21, and a first gate valve 221 is installed on a pipe between the acidic waste water tank 21 and the third pump 22.
In this embodiment, the third pump 22 is used to circulate the acidic wastewater in the acidic wastewater tank 21, so as to ensure that the acidic wastewater in the acidic wastewater tank 21 is mixed with the alkali in the acidic wastewater tank 21.
Referring to fig. 1, further, a second gate valve 222 is installed on a pipe between the third pump 22 and the second mixer 23.
Referring to fig. 1, the outlet of the high-level alkali tank 24 is further connected to the alkali addition port of the acid wastewater tank 21, a fourth gate valve 242 is installed on the pipe between the high-level alkali tank 24 and the second mixer 23, and a third gate valve 241 is installed on the pipe between the high-level alkali tank 24 and the acid wastewater tank 21.
In this embodiment, the high-caustic tank 24 is directly added to the acid wastewater tank 21 so that the acid wastewater in the acid wastewater tank 21 is premixed with a caustic before entering the first mixer 12 to neutralize the acid wastewater in the acid wastewater tank 21 in advance.
Referring to fig. 1, further, the wastewater outlet at the upper part of the caustic scrubber separator 11 is connected with the inlet of the third pump 22, a fifth gate valve 111 is installed on the pipeline between the caustic scrubber separator 11 and the third pump 22, and a sixth gate valve 112 is installed on the pipeline between the caustic scrubber separator 11 and the first mixer 12.
In this embodiment, a part of the wastewater flowing out of the upper part of the alkaline washing separator 11 is returned to the acidic wastewater tank 21, so that the wastewater discharge can be reduced, and the usage amount of the alkali in the alkaline washing kettle 25 can be reduced.
Referring to fig. 1, further, the first mixer 12 is a liquid-liquid extractor.
In this embodiment, the first mixer 12 may be a liquid-liquid extractor, and the high-nitrogen water separation tank 13 may be a secondary separation tank, so that the content of nitro-compounds in the high-nitrogen water is less.
Referring to fig. 1, further, a TDS meter is further disposed in the high nitrogen-water separation tank 13 for detecting TDS content of the wastewater in the high nitrogen-water separation tank 13.
Referring to fig. 1, further, the extraction separation unit 10 further includes a metering pump 17, an inlet of the metering pump 17 is used for introducing chlorobenzene, and an outlet of the metering pump 17 is connected to a chlorobenzene addition port of the first mixer 12.
Referring to fig. 1, further, the nitrochlorobenzene high nitrogen water extraction and separation system further comprises a controller, the controller is connected with the TDS meter, and the controller is connected with the metering pump 17.
In the above-mentioned embodiment, come the addition of strict control chlorobenzene through the TDS content of monitoring high nitrogen aquatic, avoid in the nitrogen-water separation tank because of chlorobenzene addition is improper for the proportion differs for cause the separation incomplete, be equipped with chlorobenzene in the waste water of discharge.
The embodiment of the utility model provides a module or unit in the device can merge, divide and delete according to actual need.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a nitrochlorobenzene high nitrogen water extraction piece-rate system which characterized in that: including the extraction and separation unit, the extraction and separation unit includes that alkali wash separator, first blender, high nitrogen water separation jar, first machine pump, chlorobenzene storage tank, second machine pump, the waste water outlet on alkali wash separator upper portion and the waste water entry linkage of first blender, first blender still is equipped with chlorobenzene addition mouth to add first blender with chlorobenzene as the extract of nitryl thing, the export of first blender and the entry linkage of high nitrogen water separation jar, the chlorobenzene export of high nitrogen water separation jar body lower part and the entry linkage of first machine pump, the export of first machine pump and the entry linkage of chlorobenzene storage tank, the waste water outlet on high nitrogen water separation jar body upper portion and the entry linkage of second machine pump, the export of second machine pump and the entry linkage of sewage treatment device.
2. The extraction separation system of nitrochlorobenzene high-nitrogen water as claimed in claim 1, characterized in that: the nitrochlorobenzene high-nitrogen water extraction and separation system further comprises an alkaline washing unit, wherein the alkaline washing unit comprises an acidic wastewater tank, a third pump, a second mixer, a high-level alkaline tank and an alkaline washing kettle, an outlet at the bottom of the acidic wastewater tank is connected with an inlet of the third pump, a first wastewater outlet of the third pump is connected with a wastewater inlet of the second mixer, an outlet of the high-level alkaline tank is connected with an alkali adding inlet of the second mixer, an outlet of the second mixer is connected with an inlet of the alkaline washing kettle, a wastewater outlet at the upper part of the alkaline washing kettle is connected with an inlet of the alkaline washing separator, and the alkaline washing kettle is further provided with an acidic material adding port.
3. The nitrochlorobenzene high-nitrogen water extraction separation system as claimed in claim 2, characterized in that: and a second wastewater outlet of the third pump is connected with a wastewater inlet at the upper part of the acidic wastewater tank body, and a first gate valve is arranged on a pipeline between the acidic wastewater tank and the third pump.
4. The extraction separation system of nitrochlorobenzene high-nitrogen water as claimed in claim 3, characterized in that: and a second gate valve is arranged on a pipeline between the third pump and the second mixer.
5. The nitrochlorobenzene high-nitrogen water extraction separation system as claimed in claim 2, characterized in that: the outlet of the high-order alkali tank is connected with an alkali adding port of the acid wastewater tank, a fourth gate valve is arranged on a pipeline between the high-order alkali tank and the second mixer, and a third gate valve is arranged on a pipeline between the high-order alkali tank and the acid wastewater tank.
6. The nitrochlorobenzene high-nitrogen water extraction separation system as claimed in claim 2, characterized in that: and a wastewater outlet at the upper part of the alkaline washing separator is also connected with an inlet of a third pump, a fifth gate valve is arranged on a pipeline between the alkaline washing separator and the third pump, and a sixth gate valve is arranged on a pipeline between the alkaline washing separator and the first mixer.
7. The extraction separation system of nitrochlorobenzene high-nitrogen water as claimed in claim 1, characterized in that: the first mixer is a liquid-liquid extractor.
8. The extraction separation system of nitrochlorobenzene high-nitrogen water as claimed in claim 1, characterized in that: still be provided with the TDS meter in high nitrogen water separation jar for detect the TDS content of waste water in the high nitrogen water separation jar.
9. The extraction separation system of nitrochlorobenzene high-nitrogen water as claimed in claim 1, characterized in that: the extraction separation unit further comprises a metering pump, an inlet of the metering pump is used for introducing chlorobenzene, and an outlet of the metering pump is connected with a chlorobenzene adding port of the first mixer.
10. The extraction separation system of nitrochlorobenzene high-nitrogen water as claimed in claim 1, characterized in that: the nitrochlorobenzene high-nitrogen water extraction and separation system further comprises a controller, wherein the controller is connected with the TDS meter, and the controller is connected with the metering pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922208888.9U CN211283984U (en) | 2019-12-11 | 2019-12-11 | Nitrochlorobenzene high-nitrogen water extraction and separation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922208888.9U CN211283984U (en) | 2019-12-11 | 2019-12-11 | Nitrochlorobenzene high-nitrogen water extraction and separation system |
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| Publication Number | Publication Date |
|---|---|
| CN211283984U true CN211283984U (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922208888.9U Active CN211283984U (en) | 2019-12-11 | 2019-12-11 | Nitrochlorobenzene high-nitrogen water extraction and separation system |
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| Country | Link |
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| CN (1) | CN211283984U (en) |
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