CN216838214U - Three-chamber electrolytic cell for waste salt purification - Google Patents
Three-chamber electrolytic cell for waste salt purification Download PDFInfo
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- CN216838214U CN216838214U CN202220265910.2U CN202220265910U CN216838214U CN 216838214 U CN216838214 U CN 216838214U CN 202220265910 U CN202220265910 U CN 202220265910U CN 216838214 U CN216838214 U CN 216838214U
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Abstract
The three-chamber electrolytic tank for waste salt purification comprises an anode chamber and a cathode chamber, wherein an intermediate chamber is arranged between the anode chamber and the cathode chamber, the intermediate chamber is separated from the anode chamber by an anionic organic matter filtering membrane, the intermediate chamber is separated from the cathode chamber by a cationic organic matter filtering membrane, an anode net is arranged in the anode chamber, a cathode net is arranged in the cathode chamber, an anode chamber liquid inlet is arranged at the middle lower part of the anode chamber, a cathode chamber liquid inlet is arranged at the middle lower part of the cathode chamber, an anode chamber liquid outlet is arranged at the upper part of the anode chamber, a cathode chamber liquid outlet is arranged at the upper part of the cathode chamber, and an intermediate chamber liquid outlet is arranged at the upper part of the intermediate chamber. The three-chamber electrolytic cell for purifying the waste salt can efficiently recycle the waste salt, effectively remove anion and cation impurities and organic matters in the solution to be treated, obtain the salt for chlor-alkali engineering, reduce energy consumption and prolong the service life of an ion exchange membrane.
Description
Technical Field
The utility model relates to a three room electrolysis trough for useless salt purification.
Background
With the rapid development of national economy in China and the comprehensive promotion of modern construction, the production amount of byproduct salt in industrial production is increasing, and a large amount of high-concentration salt-containing organic wastewater, waste sodium chloride salt, waste sodium sulfate salt and the like are produced annually in chemical industries, particularly in petrochemical, coal chemical, fine chemical, intermediate and other industries. Due to various generation conditions, complex components and lack of a comprehensive utilization technology which is feasible, economical and reasonable, the byproduct salt becomes a bottleneck restricting the sustainable development of the industry.
The source of the byproduct salt is wide in related industry, complex in characteristic pollutants and undefined in toxic property, and the treatment and utilization of the byproduct salt are difficult according to different components in the byproduct salt. Because contain various impurity in the byproduct salt, make it can't get into and require high moral production system to raw and other materials, current waste salt often adopts the mode of concentrated emission and burning to handle, and this kind of method produces the certain harm to the environment promptly and also increases the treatment cost simultaneously, in view of above problem, the utility model aims at developing a device that can purify the byproduct salt.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can accomplish the recovery of useless salt with high efficiency and recycle, effectively get rid of by negative and positive ion impurity and organic matter impurity in the processing solution, obtain the salt that can be used for the chlor-alkali engineering to can reduce the energy consumption, prolong ion exchange membrane's life's the three room electrolysis trough that is used for useless salt purification.
The utility model discloses a three room electrolysis trough for waste salt purification, including anode chamber and cathode chamber, be equipped with the intermediate chamber between anode chamber and the cathode chamber, utilize anion organic matter filtration membrane to separate between intermediate chamber and the anode chamber, utilize cation organic matter filtration membrane to separate between intermediate chamber and the cathode chamber, be equipped with the anode mesh in the anode chamber, be equipped with the cathode mesh in the cathode chamber;
the middle lower part of the anode chamber is provided with an anode chamber liquid inlet, the middle lower part of the cathode chamber is provided with a cathode chamber liquid inlet, the middle lower part of the middle chamber is provided with a middle chamber liquid inlet, the upper part of the anode chamber is provided with an anode chamber liquid outlet, the upper part of the cathode chamber is provided with a cathode chamber liquid outlet, and the upper part of the middle chamber is provided with a middle chamber liquid outlet.
Preferably, the anode chamber comprises an anode frame, the anode chamber liquid inlet is located at the lower part of the left side of the anode frame or the lower part of the right side of the anode frame, the anode chamber liquid outlet is located at the middle of the top end of the left side of the anode frame, the cathode chamber comprises a cathode frame, the cathode chamber liquid inlet is located at the lower part of the left side of the cathode frame or the lower part of the right side of the cathode frame, the cathode chamber liquid outlet is located at the middle of the top end of the left side of the cathode frame, the intermediate chamber comprises an intermediate frame, the intermediate chamber liquid inlet is located at the lower part of the left side of the intermediate frame or the lower part of the right side of the intermediate frame, and the intermediate chamber liquid outlet is located at the middle of the top end of the left side of the intermediate frame.
Preferably, two anode nets are arranged on the outer side of the anode chamber, two middle chambers are arranged on the outer side of the two anode nets, two anion organic matter filtering membranes are arranged between the anode chamber and the two middle chambers, the two anode nets are attached to the two anion organic matter filtering membranes, two cathode chambers are arranged on the outer side of the two middle chambers, two cation organic matter filtering membranes are arranged between the two middle chambers and the two cathode chambers, two cathode nets are arranged in the two cathode chambers, and the two cathode nets are attached to the two cation organic matter filtering membranes;
the outside of cathode chamber is equipped with two negative pole nets, and two negative pole nets's the outside is equipped with two negative intermediate chambers, is equipped with two negative positive ion organic matter filtration membranes between cathode chamber and the two negative intermediate chambers, and two negative positive pole nets are pasted with two negative positive ion organic matter filtration membranes mutually, and two negative cathode chambers's the outside is equipped with two negative cathode chambers, is equipped with two negative positive ion organic matter filtration membranes between two negative intermediate chambers and the two negative cathode chambers, is equipped with two negative pole nets in the two negative cathode chambers, and two negative pole nets are pasted with two negative positive ion organic matter filtration membranes mutually.
The utility model discloses a three room electrolysis trough for useless salt purification when using, can put into the by-product salt solution that treats purifying in the anode chamber and the cathode chamber, put into the pure water in middle room, under this condition, there is certain concentration difference in cathode chamber and middle room, there is certain concentration difference in anode chamber and middle room under the condition of certain concentration difference, switch on DC power supply, the chlorion in the anode chamber sees through middle room under the effect of electric field strength, concentration difference gradient and anion organic matter filtration membrane, and other anions are because the concentration difference is less than the concentration difference of chlorion far away, so adsorb around the anode mesh by electric field strength; sodium ions in the cathode chamber permeate the intermediate chamber under the combined action of electric field force, concentration difference gradient and a cation organic matter filtering membrane, other cations are adsorbed to the periphery by a cathode net due to the concentration difference being far smaller than that of the sodium ions, and organic matter impurities are blocked from passing through the cathode chamber under the action of the cation organic matter filtering membrane, so that a high-purity sodium chloride solution is obtained in the intermediate chamber, and the purified sodium chloride solution can be used in a chlor-alkali electric cell. Therefore, the utility model discloses a three room electrolysis trough for waste salt purification has the recovery of the high-efficient waste salt of accomplishing and recycles, effectively gets rid of by negative and positive ion impurity and organic matter impurity in the processing solution, obtains the salt that can be used for the chlor-alkali engineering to can reduce the energy consumption, prolong ion exchange membrane's life's characteristics.
The present invention will be described in detail with reference to the accompanying drawings and embodiments.
Drawings
Fig. 1 is a front view of a schematic structure of a three-chamber electrolytic cell for waste salt purification according to the present invention.
Detailed Description
In order to solve the problem that contains impurity in the byproduct salt, the utility model provides a three room structure electrolysis trough for byproduct salt purification technique for eliminate organic impurity and inorganic impurity in the byproduct salt, make the salt utilization after the purification in the chlor-alkali system, reduce the influence of impurity to the electrolysis, and reduce the energy consumption, prolong ionic membrane's life.
As shown in fig. 1, the three-chamber electrolyzer for waste salt purification of the present invention comprises an anode chamber 1 and a cathode chamber 2, wherein an intermediate chamber 3 is arranged between the anode chamber 1 and the cathode chamber 2, the intermediate chamber 3 is separated from the anode chamber 1 by an anionic organic substance filtering membrane 4, the intermediate chamber 3 is separated from the cathode chamber 2 by a cationic organic substance filtering membrane 5, an anode mesh 6 is arranged in the anode chamber 1, and a cathode mesh 7 is arranged in the cathode chamber 2;
the cation organic substance filtering membrane 5 has the characteristics of selectively permeating cations and blocking the permeation of organic substances;
the anion organic matter filtering membrane 4 has the characteristics of selectively transmitting anions and blocking the transmission of organic matters;
the middle lower part of the anode chamber 1 is provided with an anode chamber liquid inlet 8, the middle lower part of the cathode chamber 2 is provided with a cathode chamber liquid inlet 9, the middle lower part of the middle chamber 3 is provided with a middle chamber liquid inlet 10, the upper part of the anode chamber 1 is provided with an anode chamber liquid outlet 11, the upper part of the cathode chamber 2 is provided with a cathode chamber liquid outlet 12, and the upper part of the middle chamber 3 is provided with a middle chamber liquid outlet 13.
As a further improvement of the utility model, above-mentioned anode chamber 1 includes the anode frame, anode chamber inlet 8 is located the lower part on the left lower part of anode frame or anode frame right side, anode chamber liquid outlet 11 is located the middle part on the left top of anode frame, cathode chamber 2 includes the negative pole frame, cathode chamber inlet 9 is located the lower part on the left lower part of negative pole frame or negative pole frame right side, cathode chamber liquid outlet 12 is located the middle part on the left top of negative pole frame, middle room 3 includes the middle frame, middle room inlet 10 is located the left lower part of middle frame or the lower part on middle frame right side, middle room liquid outlet 13 is located the middle part on the left top of middle frame.
As a further improvement of the present invention, the outside of the anode chamber 1 is provided with two anode nets, the outside of the two anode nets is provided with two cathode chambers, two anion organic matter filtering membranes are arranged between the anode chamber 1 and the two cathode chambers, the two anode nets are attached to the two anion organic matter filtering membranes, the outside of the two cathode chambers is provided with two cathode chambers, two cation organic matter filtering membranes are arranged between the two cathode chambers and the two cathode chambers, two cathode nets are arranged in the two cathode chambers, and the two cathode nets are attached to the two cation organic matter filtering membranes;
when the device is used, purified water is added into the positive two intermediate chambers, a byproduct salt solution to be purified is added into the positive two cathode chambers, the positive two cathode nets and the cathode nets are made of the same material, the positive two anode nets and the anode nets are made of the same material, and the positive two anion organic matter filtering membranes and the anion organic matter filtering membranes are made of the same material; the sodium chloride solution with high purity obtained from the positive two intermediate chambers can be used in a chlor-alkali cell.
The outside of cathode chamber 2 is equipped with two negative pole nets, and two negative pole nets's the outside is equipped with two negative intermediate chambers, is equipped with two negative positive ion organic matter filtration membranes between 2 cathode chambers and two negative intermediate chambers, and two negative positive pole nets are pasted with two negative positive ion organic matter filtration membranes mutually, and two negative cathode chambers's the outside is equipped with two negative cathode chambers, is equipped with two negative positive ion organic matter filtration membranes between two negative intermediate chambers and two negative cathode chambers, is equipped with two negative pole nets in the two negative cathode chambers, and two negative pole nets are pasted with two negative positive ion organic matter filtration membranes mutually.
When the device is used, purified water is added into the negative two middle chambers, a byproduct salt solution to be purified is added into the negative two cathode chambers, the negative two cathode nets and the cathode nets are made of the same material, the negative two anode nets and the anode nets are made of the same material, and the negative two anion organic matter filtering membrane and the anion organic matter filtering membrane are made of the same material; the high-purity sodium chloride solution obtained from the negative two intermediate chambers can be used in a chlor-alkali cell.
The concentration of the byproduct salt solution in the anode chamber 1 and the cathode chamber 2 is 10-27%, and a certain concentration difference exists between the byproduct salt solution and the intermediate chamber 3, on the premise of controlling the current density, chloride ions pass through the anion organic matter filtering membrane in the anode chamber 1, and impurity ions are blocked by electric field force and cannot pass through the anion organic matter filtering membrane; in the cathode chamber 2, sodium ions permeate through the cationic organic substance filtration membrane, and impurity ions are blocked by electric field force and cannot permeate through the membrane. In the electrolysis process, under the combined action of the electric field force, the concentration gradient difference, the cation organic matter filtering membrane and the anion organic matter filtering membrane, the purified sodium chloride solution is obtained in the intermediate chamber 3 and can directly enter a chlor-alkali cell.
The utility model discloses a three room electrolysis trough for useless salt purification when using, can put into the byproduct salt solution of treating the purification in anode chamber 1 and cathode chamber 2, put into the pure water in middle room 3, then treat the byproduct salt solution of purifying and carry out the electrolysis. In the three-chamber electrolytic cell with the structure, the anode exchange membrane is replaced by a cation organic matter filtering membrane, in this case, a certain concentration difference exists between the cathode chamber 2 and the middle chamber 3, and under the condition that a certain concentration difference exists between the anode chamber 1 and the middle chamber 3, a direct current power supply is switched on, chloride ions in the anode chamber 1 penetrate into the middle chamber 3 under the action of electric field force, concentration difference gradient and the anion organic matter filtering membrane, and other anions are adsorbed around the anode mesh by the electric field force because the concentration difference is far smaller than that of the chloride ions; sodium ions in the cathode chamber 2 permeate the intermediate chamber 3 under the combined action of electric field force, concentration difference gradient and a cation organic matter filtering membrane, other cations are adsorbed to the periphery by a cathode net due to the concentration difference being far smaller than that of the sodium ions, and organic matter impurities are blocked from passing through the cathode chamber 2 under the action of the cation organic matter filtering membrane, so that a high-purity sodium chloride solution is obtained in the intermediate chamber 3, and the purified sodium chloride solution can be used in a chlor-alkali electric cell. Therefore, the utility model discloses a three room electrolysis trough for waste salt purification has the recovery of the high-efficient waste salt of accomplishing and recycles, effectively gets rid of by negative and positive ion impurity and organic matter impurity in the processing solution, obtains the salt that can be used for the chlor-alkali engineering to can reduce the energy consumption, prolong ion exchange membrane's life's characteristics.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by the technical solutions of the present invention by those skilled in the art are intended to fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.
Claims (3)
1. Three-chamber electrolytic cell for waste salt purification, characterized in that: the water-soluble cathode comprises an anode chamber (1) and a cathode chamber (2), wherein an intermediate chamber (3) is arranged between the anode chamber (1) and the cathode chamber (2), the intermediate chamber (3) is separated from the anode chamber (1) by an anionic organic matter filtering membrane (4), the intermediate chamber (3) is separated from the cathode chamber (2) by a cationic organic matter filtering membrane (5), an anode net (6) is arranged in the anode chamber (1), and a cathode net (7) is arranged in the cathode chamber (2);
the middle lower part of the anode chamber (1) is provided with an anode chamber liquid inlet (8), the middle lower part of the cathode chamber (2) is provided with a cathode chamber liquid inlet (9), the middle lower part of the middle chamber (3) is provided with a middle chamber liquid inlet (10), the upper part of the anode chamber (1) is provided with an anode chamber liquid outlet (11), the upper part of the cathode chamber (2) is provided with a cathode chamber liquid outlet (12), and the upper part of the middle chamber (3) is provided with a middle chamber liquid outlet (13).
2. The three-chamber electrolyzer of claim 1 for purification of waste salts characterized by: anode chamber (1) includes the anode frame, anode chamber inlet (8) are located the lower part on the left lower part of anode frame or anode frame right side, anode chamber liquid outlet (11) are located the middle part on the left top of anode frame, cathode chamber (2) are including the negative pole frame, cathode chamber inlet (9) are located the lower part on the left lower part of negative pole frame or negative pole frame right side, cathode chamber liquid outlet (12) are located the middle part on the left top of negative pole frame, middle room (3) are including the middle frame, middle room inlet (10) are located the left lower part of middle frame or the lower part on middle frame right side, middle room liquid outlet (13) are located the middle part on the left top of middle frame.
3. A three-chamber electrolyser for waste salt purification as claimed in claim 1 or 2, characterized in that: two positive anode nets are arranged on the outer side of the anode chamber (1), two positive intermediate chambers are arranged on the outer side of the two positive anode nets, two positive anion organic matter filtering membranes are arranged between the anode chamber (1) and the two positive intermediate chambers, the two positive anode nets are attached to the two positive anion organic matter filtering membranes, two positive cathode chambers are arranged on the outer side of the two positive intermediate chambers, two positive cation organic matter filtering membranes are arranged between the two positive intermediate chambers and the two positive cathode chambers, two positive cathode nets are arranged in the two positive cathode chambers, and the two positive cathode nets are attached to the two positive cation organic matter filtering membranes;
the outside of cathode chamber (2) is equipped with two negative pole nets, and the outside of two negative pole nets is equipped with two negative middle rooms, is equipped with two negative positive ion organic matter filtration membranes between two negative middle rooms in cathode chamber (2), and two negative positive pole nets are pasted mutually with two negative positive ion organic matter filtration membranes, and the outside of two negative middle rooms is equipped with two negative cathode chambers, is equipped with two negative positive ion organic matter filtration membranes between two negative middle rooms and two negative cathode chambers, is equipped with two negative pole nets in the two negative cathode chambers, and two negative pole nets are pasted mutually with two negative positive ion organic matter filtration membranes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220265910.2U CN216838214U (en) | 2022-02-07 | 2022-02-07 | Three-chamber electrolytic cell for waste salt purification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220265910.2U CN216838214U (en) | 2022-02-07 | 2022-02-07 | Three-chamber electrolytic cell for waste salt purification |
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| CN216838214U true CN216838214U (en) | 2022-06-28 |
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| CN202220265910.2U Active CN216838214U (en) | 2022-02-07 | 2022-02-07 | Three-chamber electrolytic cell for waste salt purification |
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