CN212595442U - Sodium naphthalenesulfonate filter pressing liquid recovery unit - Google Patents
Sodium naphthalenesulfonate filter pressing liquid recovery unit Download PDFInfo
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- CN212595442U CN212595442U CN202020924779.7U CN202020924779U CN212595442U CN 212595442 U CN212595442 U CN 212595442U CN 202020924779 U CN202020924779 U CN 202020924779U CN 212595442 U CN212595442 U CN 212595442U
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- filter pressing
- pipeline
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- sodium sulfite
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Abstract
The utility model relates to a sodium naphthalenesulfonate press filtrate recovery device, which belongs to the technical field of industrial wastewater treatment; the problems of large amount of industrial wastewater generated in the filter pressing process of the sodium naphthalenesulfonate and high treatment cost are solved; the technical scheme is as follows: the device comprises a filter pressing filtrate tank and a sodium sulfite preparation kettle, wherein a liquid outlet at the bottom of the filter pressing filtrate tank is connected with a filter pressing filtrate inlet of the sodium sulfite preparation kettle through a first pipeline, a liquid outlet at the bottom of the sodium sulfite preparation kettle is connected to a neutralization reaction system through a second pipeline, and filter pressing filtrate pumps are arranged on the first pipeline and the second pipeline; the utility model discloses lead to the filtration fluid reservoir with the pressure filtrate and store the back, utilize the pressure filtrate of retrieving to emit into the inferior sodium and prepare the cauldron and prepare 12% inferior solution of receiving, both solved the processing problem of waste water, guaranteed 12% inferior solution solvent supply problem of receiving again, realized the zero outer row of waste water that the system produced.
Description
Technical Field
The utility model belongs to the technical field of industrial wastewater treatment, specifically be a sodium naphthalenesulfonate press filtrate recovery unit.
Background
And (3) carrying out pressure filtration on sodium naphthalenesulfonate solution generated after neutralization of naphthalenesulfonic acid and sodium sulfite through a horizontal pressure filter to obtain sodium naphthalenesulfonate filter pressing liquid. The filter pressing liquid amount generated in the filter pressing process is large, 20 ten thousand tons of wastewater can be generated per year on average through preliminary measurement, the economic benefit is greatly reduced due to the increase of the treatment cost of the filter pressing liquid, in addition, the 12 percent of sub-nanometer water required by a neutralization system needs to be additionally supplemented, and the production cost is further increased.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes prior art's is not enough, provides a sodium naphthalenesulfonate filter pressing liquid recovery unit, and the industrial waste water volume of solving sodium naphthalenesulfonate filter pressing in-process and producing is big, problem that treatment cost is high.
In order to achieve the above purpose, the present invention is achieved by the following technical solutions.
A sodium naphthalenesulfonate filter pressing liquid recovery device comprises a filter pressing liquid tank and a sodium nitrite preparation kettle, wherein a first filter pressing liquid inlet and a tail gas discharge outlet are formed in the top of the filter pressing liquid tank, a second filter pressing liquid inlet and a solid sodium nitrite feed port are formed in the top of the sodium nitrite preparation kettle, a liquid discharge port in the bottom of the filter pressing liquid tank is connected with the second filter pressing liquid inlet of the sodium nitrite preparation kettle through a first pipeline, a liquid discharge port in the bottom of the sodium nitrite preparation kettle is connected to a neutralization reaction system through a second pipeline, and filter pressing liquid pumps are arranged on the first pipeline and the second pipeline; and stirring devices are respectively arranged in the filter pressing filtrate tank and the sodium sulfite preparation kettle.
Furthermore, a plurality of filter pressing filtrate tanks are connected in parallel on the first pipeline, and a plurality of sodium sulfite preparation kettles are connected in parallel on the second pipeline.
Furthermore, flow valves are arranged on the first pipeline and the second pipeline.
Further, the tail gas discharge port is connected to the washing system through a gas pipeline.
Further, the first pressure filtrate inlet is connected with a pressure filter through a pipeline.
The utility model discloses produced beneficial effect does for prior art.
The utility model discloses lead to the filtration fluid reservoir with the pressure filtrate and store the back, utilize the pressure filtrate of retrieving to emit into the inferior sodium and prepare the cauldron and prepare 12% inferior solution of receiving, both solved the processing problem of waste water, guaranteed 12% inferior solution solvent supply problem of receiving again, realized the zero outer row of waste water that the system produced. Not only greatly reduces the treatment cost of sewage, but also changes waste into valuable, and accords with the current national environmental protection policy.
Drawings
Fig. 1 is a schematic structural diagram of the sodium naphthalenesulfonate press filtrate recovery device of the present invention.
Wherein, 1 is the filter pressing filtrate jar, 2 is the sodium sulfite configuration cauldron, 3 is first filter pressing liquid import, 4 is tail gas discharge port, 5 is the import of second filter pressing liquid, 6 is solid sodium nitrite dog-house, 7 is first pipeline, 8 is the second pipeline, 9 is the filter pressing filtrate pump, 10 is agitating unit, 11 is the flow valve, 12 is the fluid-discharge tube.
Detailed Description
In order to make the technical problem, technical scheme and beneficial effect that the utility model will solve more clearly understand, combine embodiment and attached drawing, it is right to go on further detailed description the utility model discloses. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solution of the present invention is described in detail below with reference to the embodiments and the drawings, but the scope of protection is not limited thereto.
As shown in fig. 1, the sodium naphthalenesulfonate press filtrate recovery device comprises two press filtrate tanks 1 and two sodium sulfite preparation kettles 2, wherein the top of each press filtrate tank 1 is provided with a first press filtrate inlet 3 and a tail gas discharge port 4, and the first press filtrate inlet 3 is connected with a press filter through a pipeline; the tail gas discharge port 4 is connected to a washing system through a gas pipeline; a second press filtration liquid inlet 5 and a solid sodium nitrite feed port 6 are arranged at the top of the sodium sulfite preparation kettle 2, liquid discharge ports at the bottoms of the two press filtration liquid tanks 1 are connected to a first pipeline 7 through a liquid discharge pipe 12 and are connected with the second press filtration liquid inlets 5 of the two sodium sulfite preparation kettles 2 through the first pipeline 7, the liquid discharge ports at the bottoms of the two sodium sulfite preparation kettles 2 are connected to a second pipeline 8 through the liquid discharge pipe 12 and are connected to a neutralization reaction system through the second pipeline 8, and press filtration liquid pumps 9 are arranged on the first pipeline 7 and the second pipeline 8; stirring devices 10 are respectively arranged in the filter-pressing filtrate tank 1 and the sodium sulfite preparation kettle 2, each stirring device 10 comprises a stirring paddle and a driving motor, the stirring paddles are arranged in the filter-pressing filtrate tank 1 and the sodium sulfite preparation kettle 2, and the driving motors are arranged on the upper portions of the filter-pressing filtrate tank 1 and the sodium sulfite preparation kettle 2. Flow valves 11 are arranged on the first line 7, the second line 8 and the discharge line 12.
The specific working process is that a first pressure filtrate inlet 3 of sodium naphthalenesulfonate filtrate discharged from the filter press enters a pressure filtration filtrate tank 1, and enters a sodium sulfite preparation kettle 2 through a pressure filtration filtrate pump 9 on a first pipeline 7 under the state of continuous stirring for preparing 12% sodium sulfite solution for system neutralization and reaction, and the recovered pressure filtrate is discharged into the sodium sulfite preparation kettle to prepare 12% sodium sulfite solution, so that the problem of wastewater treatment is solved, the problem of solvent supply of the 12% sodium sulfite solution is also ensured, and zero discharge of wastewater generated by the system is realized. Not only greatly reduces the treatment cost of the sewage, but also changes waste into valuable.
The above description is for further details of the present invention with reference to specific preferred embodiments, and it should not be understood that the embodiments of the present invention are limited thereto, and it will be apparent to those skilled in the art that the present invention can be implemented in a plurality of simple deductions or substitutions without departing from the scope of the present invention, and all such alterations and substitutions should be considered as belonging to the present invention, which is defined by the appended claims.
Claims (5)
1. The sodium naphthalenesulfonate filter pressing liquid recovery device is characterized by comprising a filter pressing liquid tank (1) and a sodium sulfite preparation kettle (2), wherein a first filter pressing liquid inlet (3) and a tail gas discharge port (4) are formed in the top of the filter pressing liquid tank (1), a second filter pressing liquid inlet (5) and a solid sodium nitrite feed port (6) are formed in the top of the sodium sulfite preparation kettle (2), a liquid discharge port in the bottom of the filter pressing liquid tank (1) is connected with the second filter pressing liquid inlet (5) of the sodium sulfite preparation kettle (2) through a first pipeline (7), a liquid discharge port in the bottom of the sodium sulfite preparation kettle (2) is connected to a neutralization reaction system through a second pipeline (8), and filter pressing liquid pumps (9) are arranged on the first pipeline (7) and the second pipeline (8); and stirring devices (10) are respectively arranged in the filter pressing filtrate tank (1) and the sodium sulfite preparation kettle (2).
2. The sodium naphthalenesulfonate press filtrate recovery device according to claim 1, wherein a plurality of press filtration filtrate tanks (1) are connected in parallel to the first pipeline (7), and a plurality of sodium sulfite preparation kettles (2) are connected in parallel to the second pipeline (8).
3. The sodium naphthalenesulfonate pressfiltrate recovery device according to claim 1, characterized in that the first pipeline (7) and the second pipeline (8) are provided with flow valves (11).
4. The sodium naphthalenesulfonate pressfiltrate recovery device according to claim 1, characterized in that the tail gas discharge port (4) is connected to a scrubbing system through a gas line.
5. The sodium naphthalenesulfonate pressfiltrate recovery device according to claim 1, characterized in that the first pressfiltrate inlet (3) is connected to a filter press through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020924779.7U CN212595442U (en) | 2020-05-28 | 2020-05-28 | Sodium naphthalenesulfonate filter pressing liquid recovery unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020924779.7U CN212595442U (en) | 2020-05-28 | 2020-05-28 | Sodium naphthalenesulfonate filter pressing liquid recovery unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212595442U true CN212595442U (en) | 2021-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020924779.7U Active CN212595442U (en) | 2020-05-28 | 2020-05-28 | Sodium naphthalenesulfonate filter pressing liquid recovery unit |
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| Country | Link |
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| CN (1) | CN212595442U (en) |
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2020
- 2020-05-28 CN CN202020924779.7U patent/CN212595442U/en active Active
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