CN205241404U - Salt -containing wastewater treatment system - Google Patents
Salt -containing wastewater treatment system Download PDFInfo
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- CN205241404U CN205241404U CN201521035868.1U CN201521035868U CN205241404U CN 205241404 U CN205241404 U CN 205241404U CN 201521035868 U CN201521035868 U CN 201521035868U CN 205241404 U CN205241404 U CN 205241404U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
Abstract
The utility model provides a salt -containing wastewater treatment system, this salt -containing wastewater treatment system includes: the crystallization device for receive and handle including salt waste water, and output desalination crystal, melt the device, be connected with the crystallization device for receive and melt the desalination crystal, and output desalination organic waste water, supercritical reaction apparatus and melts the device and is connected for desalination organic waste water is received and handled. The utility model discloses a crystallization desalination is carried out to containing salt waste water to the principle of the freezing desalination of crystallization device utilization, and desalting effect is good to, input to supercritical reaction apparatus after the desalination crystal that produces the crystallization device melts, protected supercritical reaction apparatus effectively, avoided salt pair supercritical reaction apparatus's corruption and jam, ensured supercritical reaction apparatus's safe operation.
Description
Technical field
The utility model relates to technical field of waste water processing, in particular to a kind of brine waste treatment system.
Background technology
Along with the quick propelling of China's industrialization and urbanization, industrial wastewater rapidly increases, and has increased the weight of the pollution to earth's surface and body of groundwater, and then threatens ecological safety and residents ' health. At present, general method of wastewater treatment can only be processed a part in waste water and be easy to the material of biochemical degradation, but, for a large amount of saliferous that produce in the industry waste water such as printing and dyeing, papermaking, chemical industry, medicine and agricultural chemicals, the organic wastewater of high concentration bio-refractory, adopt general method of wastewater treatment cannot effectively process it.
Supercritical Water Oxidation Technology (SupercriticalWaterOxidation is called for short SCWO) is a kind of new technique to debirs and treatment of Organic Wastewater that is subject in recent years extensive concern. The principle of supercritical Water Oxidation Technology is taking supercritical water as reaction medium, through the oxidation reaction of homogeneous phase, is CO by organic matter rapid conversion2、H2O、N2With other harmless little molecules. Utilize supercritical Water Oxidation Technology to carry out degradation treatment to organic wastewater and carbon-contained organic matter, can fundamentally solve the pollution problem such as waste water, mud, thereby realize innoxious, minimizing and the recycling of the pollutant such as waste water, mud.
Supercritical water in supercritical Water Oxidation Technology can dissolve each other completely with apolar substance (as hydro carbons) and other organic matters, and dissolve each other completely with gases such as air, oxygen, nitrogen and carbon dioxide, but, cannot be well with inorganic matter particularly salt dissolve each other, with regard to causing the salt in waste water to remain in supercritical water oxidation apparatus, cause obstruction and the corrosion of supercritical water oxidation apparatus like this. Conventionally, while utilizing supercritical Water Oxidation Technology to process brine waste, first brine waste is carried out to desalting processing, the waste water of removing inorganic salts is inputed to supercritical water oxidation apparatus, utilize the oxidation of supercritical water and oxidant to remove the organic matter in waste water. But, the desalting processing method of brine waste in prior art, as flash distillation desalination method etc., just carry out simple desalination, desalting effect is poor, the content that enters the salt in the waste water of supercritical water oxidation apparatus is still very high, easily stops up and corrodes supercritical water oxidation apparatus, and then affecting the safe operation of supercritical water oxidation apparatus.
Utility model content
Given this, the utility model proposes a kind of brine waste treatment system, be intended to solve the poor problem of the desalting effect of brine waste in prior art.
The utility model proposes a kind of brine waste treatment system, this brine waste treatment system comprises: crystallization apparatus, and for receiving and process brine waste, and output desalination crystal; Thawing apparatus, is connected with crystallization apparatus, for receiving and melting desalination crystal, and output desalination organic wastewater; Supercritical reaction apparatus, is connected with thawing apparatus, for receiving and process desalination organic wastewater.
Further, above-mentioned brine waste treatment system also comprises: the first heat-exchanger rig, and before being arranged at crystallization apparatus, for carrying out heat exchange to oxidant and the brine waste of supercritical reaction apparatus input.
Further, in above-mentioned brine waste treatment system, the first heat-exchanger rig is First Heat Exchanger; Wherein, the entrance of the first passage of First Heat Exchanger is used for receiving brine waste, and the outlet of the first passage of First Heat Exchanger is connected with the entrance of crystallization apparatus; The entrance of the second channel of First Heat Exchanger is used for receiving oxidant, and the outlet of the second channel of First Heat Exchanger is connected with the entrance of supercritical reaction apparatus.
Further, above-mentioned brine waste treatment system also comprises: the second heat-exchanger rig; Wherein, thawing apparatus is connected with supercritical reaction apparatus by the second heat-exchanger rig, and the second heat-exchanger rig is for carrying out heat exchange by the gas-liquid mixture of the desalination organic wastewater of thawing apparatus output and supercritical reaction apparatus output.
Further, in above-mentioned brine waste treatment system, the second heat-exchanger rig is the second heat exchanger; Wherein, the entrance of the first passage of the second heat exchanger is connected with the outlet of thawing apparatus, for receiving the desalination organic wastewater of thawing apparatus output, the outlet of the first passage of the second heat exchanger is connected with the entrance of supercritical reaction apparatus, for exporting the desalination organic wastewater after heat exchange to supercritical reaction apparatus; The entrance of the second channel of the second heat exchanger is connected with the outlet of supercritical reaction apparatus, and for receiving the gas-liquid mixture of supercritical reaction apparatus output, the outlet of the second channel of the second heat exchanger is for exporting the gas-liquid mixture after heat exchange.
Further, above-mentioned brine waste treatment system also comprises: distillation device, be connected with the first heat-exchanger rig, and for receiving and process brine waste, and to the concentrated waste water of the first heat-exchanger rig output saliferous.
Further, above-mentioned brine waste treatment system also comprises: distillation device, and for receiving and process brine waste, and the concentrated waste water of output saliferous; Crystallization apparatus is also connected with distillation device, also for receiving and process the concentrated waste water of saliferous, and output desalination crystal.
Further, above-mentioned brine waste treatment system also comprises: the 3rd heat exchanger; Wherein, the entrance of the first passage of the 3rd heat exchanger is used for receiving brine waste, and the outlet of the first passage of the 3rd heat exchanger is connected with the entrance of distillation device, for exporting the brine waste after heat exchange to distillation device; The entrance of the second channel of the 3rd heat exchanger is connected with the outlet of supercritical reaction apparatus, and for receiving the gas-liquid mixture of supercritical reaction apparatus output, the outlet of the second channel of the 3rd heat exchanger is for exporting the gas-liquid mixture after heat exchange.
Further, above-mentioned brine waste treatment system also comprises: distillation device; Wherein, crystallization apparatus is also for exporting saliferous condensed water; Distillation device is connected with crystallization apparatus, for receiving and process saliferous condensed water, and exports the saliferous condensed water after concentrating.
Further, above-mentioned brine waste treatment system also comprises: the 4th heat exchanger; Wherein, the entrance of the first passage of the 4th heat exchanger is connected with the liquid outlet of crystallization apparatus, for receiving the saliferous condensed water of crystallization apparatus output, the outlet of the first passage of the 4th heat exchanger is connected with the entrance of distillation device, for exporting the saliferous condensed water after heat exchange to distillation device; The entrance of the second channel of the 4th heat exchanger is connected with the outlet of supercritical reaction apparatus, and for receiving the gas-liquid mixture of supercritical reaction apparatus output, the outlet of the second channel of the 4th heat exchanger is for exporting the gas-liquid mixture after heat exchange.
In the utility model; utilize the principle of freeze desalination to carry out crystal desalination processing to brine waste by crystallization apparatus; desalting effect is good; solve the poor problem of the desalting effect of brine waste in prior art; and, after melting, the desalination crystal that crystallization apparatus is produced inputs to supercritical reaction apparatus, effectively protect supercritical reaction apparatus; avoid the Corrosion blockage of salt pair supercritical reaction apparatus, guaranteed the safe operation of supercritical reaction apparatus.
Brief description of the drawings
By reading below detailed description of the preferred embodiment, various other advantage and benefits will become cheer and bright for those of ordinary skill in the art. Accompanying drawing is only for the object of preferred embodiment is shown, and do not think restriction of the present utility model. And in whole accompanying drawing, represent identical parts by identical reference symbol. In the accompanying drawings:
The structural representation of the brine waste treatment system that Fig. 1 provides for the utility model embodiment;
The another structural representation of the brine waste treatment system that Fig. 2 provides for the utility model embodiment;
The another structural representation of the brine waste treatment system that Fig. 3 provides for the utility model embodiment.
Detailed description of the invention
Exemplary embodiment of the present disclosure is described below with reference to accompanying drawings in more detail. Although shown exemplary embodiment of the present disclosure in accompanying drawing, but should be appreciated that and can realize the disclosure and the embodiment that should do not set forth limits here with various forms. On the contrary, it is in order more thoroughly to understand the disclosure that these embodiment are provided, and can be by the those skilled in the art that conveys to complete the scope of the present disclosure. It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the utility model can combine mutually. Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
Embodiment mono-:
Referring to Fig. 1, the structural representation of the brine waste treatment system that Fig. 1 provides for the utility model embodiment. As shown in the figure, this brine waste treatment system comprises: crystallization apparatus 1, thawing apparatus 2 and supercritical reaction apparatus 3. Wherein, crystallization apparatus 1 is for receiving and process brine waste, and output desalination crystal. Thawing apparatus 2 is connected with crystallization apparatus 1, for receiving and melting the desalination crystal that this crystallization apparatus 1 is exported, and output desalination organic wastewater. Supercritical reaction apparatus 3 is connected with thawing apparatus 2, the desalination organic wastewater of exporting for receiving and process this thawing apparatus 2.
Particularly, the waterwater entrance 11 of crystallization apparatus is for receiving brine waste, crystallization apparatus 1 is processed this brine waste and is produced desalination crystal and saliferous condensed water, and desalination crystal is by crystal outlet 13 outputs of crystallization apparatus, and saliferous condensed water is exported by the liquid outlet 14 of crystallization apparatus. The entrance 21 of thawing apparatus is connected with the crystal of crystallization apparatus outlet 13, for receiving desalination crystal, and melts this desalination crystal. The outlet 22 of thawing apparatus is connected with the waterwater entrance 31 of supercritical reaction apparatus, inputs to supercritical reaction apparatus 3 for the desalination organic wastewater after desalination crystal is melted. Supercritical reaction apparatus 3 is for receiving this desalination organic wastewater, supercritical reaction apparatus 3 is also for receiving oxidant and carbonaceous material, desalination organic wastewater in supercritical reaction apparatus 3 with oxidant and carbonaceous material generation oxidation reaction, produce gas-liquid mixture and the waste residue of HTHP. Gas-liquid mixture is by product outlet 33 outputs of supercritical reaction apparatus, and waste residue is by waste residue outlet 34 outputs of supercritical reaction apparatus.
It should be appreciated by those skilled in the art that when brine waste carries out supercritical water oxidation and need to pass into oxidant and carbonaceous material, the organic matter generation oxidation reaction in oxidant and carbonaceous material and waste water is that those skilled in the art are known, therefore do not repeat.
When work, brine waste is inputed in crystallization apparatus 1 by the waterwater entrance 11 of crystallization apparatus, and according to the principle of freeze desalination, brine waste is in crystallization apparatus 1, and a part forms desalination crystal, and remaining liquid is saliferous condensed water. Saliferous condensed water is exported by the liquid outlet 14 of crystallization apparatus, and desalination crystal inputs in thawing apparatus 2 and melts as desalination organic wastewater, and desalination organic wastewater exports supercritical reaction apparatus 3 to by the outlet 22 of thawing apparatus. In supercritical reaction apparatus 3, desalination organic wastewater and oxidant and carbonaceous material generation oxidation reaction, produce and export gas-liquid mixture and the waste residue of HTHP, gas-liquid mixture is by product outlet 33 outputs of supercritical reaction apparatus, and waste residue is by waste residue outlet 34 outputs of supercritical reaction apparatus.
Can find out; in the present embodiment; utilize the principle of freeze desalination to carry out crystal desalination processing to brine waste by crystallization apparatus 1; desalting effect is good, has solved the poor problem of the desalting effect of brine waste in prior art, and; after melting, the desalination crystal that crystallization apparatus 1 is produced inputs to supercritical reaction apparatus 3; effectively protect supercritical reaction apparatus 3, avoided the Corrosion blockage of salt pair supercritical reaction apparatus, guaranteed the safe operation of supercritical reaction apparatus.
Continue referring to Fig. 1, as shown in the figure, in above-described embodiment, brine waste treatment system can also comprise: the first heat-exchanger rig. Wherein, before the first heat-exchanger rig is arranged at crystallization apparatus 1, for the oxidant of inputting to supercritical reaction apparatus 3 and brine waste are carried out to heat exchange.
The first heat-exchanger rig can be First Heat Exchanger 4, wherein, the entrance 41 of the first passage of First Heat Exchanger is for receiving brine waste, and the outlet 42 of the first passage of First Heat Exchanger is connected with the entrance of crystallization apparatus, for exporting the brine waste after heat exchange to crystallization apparatus 1. The entrance 43 of the second channel of First Heat Exchanger is for receiving oxidant, and the outlet 44 of the second channel of First Heat Exchanger is connected with the entrance of supercritical reaction apparatus, for exporting the oxidant after heat exchange to supercritical reaction apparatus 3. Particularly, the outlet 42 of the first passage of First Heat Exchanger is connected with the waterwater entrance 11 of crystallization apparatus, and the outlet 44 of the second channel of First Heat Exchanger is connected with the oxidant inlet 32 of supercritical reaction apparatus. Oxidant can be liquid oxygen.
When work, brine waste inputs in the first passage of First Heat Exchanger 4, waits for heat exchange cooling; Oxidant inputs in the second channel of First Heat Exchanger 4, waits for that heat exchange heats up. In First Heat Exchanger 4, brine waste and oxidant carry out heat exchange, and after brine waste heat exchange, temperature reduction exports crystallization apparatus 1 to, and after oxidant heat exchange, temperature raises and exports supercritical reaction apparatus 3 to.
Can find out, in the present embodiment, by brine waste and the oxidant of inputting to supercritical reaction apparatus 3 are carried out to heat exchange, not only take full advantage of the low temperature of oxidant, reduce the temperature of brine waste, and then make crystallization apparatus 1 carry out better freeze desalination processing, improve the operating efficiency of crystallization apparatus 1, and oxidant and brine waste heat exchange, improve the temperature of oxidant, be convenient to oxidant and in supercritical reaction apparatus 3, carry out oxidation reaction, meanwhile, avoided the waste of the energy.
Continue referring to Fig. 1, in the various embodiments described above, brine waste treatment system can also comprise: the second heat-exchanger rig. Wherein, thawing apparatus 2 is connected with supercritical reaction apparatus 3 by the second heat-exchanger rig, and the gas-liquid mixture that the second heat-exchanger rig is exported for desalination organic wastewater that thawing apparatus 2 is exported and supercritical reaction apparatus 3 carries out heat exchange.
The second heat-exchanger rig can be the second heat exchanger 5. Wherein, the entrance 51 of the first passage of the second heat exchanger is connected with the outlet 22 of thawing apparatus, for receiving the desalination organic wastewater that thawing apparatus 2 is exported, the outlet 52 of the first passage of the second heat exchanger is connected with the entrance of supercritical reaction apparatus, for exporting the desalination organic wastewater after heat exchange to supercritical reaction apparatus 3. The entrance 53 of the second channel of the second heat exchanger is connected with the outlet of supercritical reaction apparatus, the gas-liquid mixture of exporting for receiving supercritical reaction apparatus 3, and the outlet 54 of the second channel of the second heat exchanger is for exporting the gas-liquid mixture after heat exchange. Particularly, the outlet 52 of the first passage of the second heat exchanger is connected with the waterwater entrance 31 of supercritical reaction apparatus, and the entrance 53 of the second channel of the second heat exchanger is connected with the product of supercritical reaction apparatus outlet 33.
When work, thawing apparatus 2 melts desalination crystal for desalination organic wastewater, and desalination organic wastewater is exported in the first passage of the second heat exchanger 5, waits for that heat exchange heats up; The gas-liquid mixture of the HTHP that supercritical reaction apparatus 3 produces exports in the second channel of the second heat exchanger 5, waits for heat exchange cooling. In the second heat exchanger 5, desalination organic wastewater and gas-liquid mixture carry out heat exchange, and after the heat exchange of desalination organic wastewater, temperature raises and exports supercritical reaction apparatus 3 to, and after gas-liquid mixture heat exchange, temperature reduction is exported by the outlet 54 of the second channel of the second heat exchanger.
Can find out, in the present embodiment, the gas-liquid mixture of exporting by desalination organic wastewater that thawing apparatus 2 is exported and supercritical reaction apparatus 3 carries out heat exchange, not only take full advantage of the high temperature of gas-liquid mixture, improve the temperature of desalination organic wastewater, and then improved the operating efficiency of supercritical reaction apparatus, and avoid the waste of the energy.
Embodiment bis-:
Referring to Fig. 2, the present embodiment is on the basis of embodiment mono-, also has additional distillation device 6. Wherein, distillation device 6 is connected with the first heat-exchanger rig, for receiving and process brine waste, produces the concentrated waste water of saliferous, and to the concentrated waste water of the first heat-exchanger rig output saliferous. Particularly, the entrance 61 of distillation device is for receiving brine waste, and the first outlet 62 of distillation device is connected with the entrance 41 of the first passage of First Heat Exchanger, carries out heat exchange cooling for the brine waste after concentrating is exported in First Heat Exchanger 4.
Those skilled in the art should understand that, distillation device 6 generally comprises hydrothermal solution side, film and product water side, the brine waste of the accommodating reception of hydrothermal solution side, a part of water evaporation in brine waste produces steam, vapour transmission film enters and produces water side, steam can be condensed into water in product water side, and by second outlet 63 outputs of producing water side, steam also can directly be exported by second outlet 63 of producing water side with the form of steam.
When work, brine waste inputs in the hydrothermal solution side in distillation device 6, and a part of water evaporation in brine waste produces steam, and vapour transmission film is exported by the second outlet 63. Brine waste in hydrothermal solution side, because a part of water evaporates, so brine waste is concentrated, forms the concentrated waste water of saliferous. The concentrated waste water of saliferous is exported to by the first outlet 62 of distillation device in the first passage of First Heat Exchanger 4 and waits for heat exchange cooling.
Can find out, in the present embodiment, by distillation device 6, brine waste be concentrated, remove a part of water, alleviate the workload of crystallization apparatus 1, improve the operating efficiency of crystallization apparatus 1.
Continue referring to Fig. 2, in above-described embodiment, brine waste treatment system can also comprise: the 3rd heat exchanger 7. Wherein, the entrance 71 of the first passage of the 3rd heat exchanger is for receiving brine waste, and the outlet 72 of the first passage of the 3rd heat exchanger is connected with the entrance 61 of distillation device, for exporting the brine waste after heat exchange to distillation device 6. The entrance 73 of the second channel of the 3rd heat exchanger is connected with the outlet of supercritical reaction apparatus, the gas-liquid mixture of exporting for receiving supercritical reaction apparatus 3, and the outlet 74 of the second channel of the 3rd heat exchanger is for exporting the gas-liquid mixture after heat exchange. , the gas-liquid mixture that the brine waste in the first passage of the 3rd heat exchanger 7 and the supercritical reaction apparatus 3 in second channel are exported carries out heat exchange. Particularly, the entrance 73 of the second channel of the 3rd heat exchanger and the outlet 54 of the second channel of the second heat exchanger are connected.
When work, brine waste inputs in the first passage of the 3rd heat exchanger 7, waits for that heat exchange heats up; The gas-liquid mixture that supercritical reaction apparatus 3 is exported first carries out heat exchange cooling through the second heat exchanger 5, then inputs in the second channel of the 3rd heat exchanger 7, waits for heat exchange cooling again. In the 3rd heat exchanger 7, brine waste and gas-liquid mixture carry out heat exchange, and after brine waste heat exchange, temperature raises and exports distillation device 6 to, and after gas-liquid mixture heat exchange, temperature again reduces by the outlet 74 of the second channel of the 3rd heat exchanger and exports.
Can find out, in the present embodiment, gas-liquid mixture and the brine waste supercritical reaction apparatus 3 exported by the 3rd heat exchanger 7 carry out heat exchange, improve the temperature of brine waste, accelerate the speed of brine waste at the interior generation steam of distillation device 6, and then improved the operating efficiency of distillation device 6.
Embodiment tri-:
Referring to Fig. 3, the present embodiment is on the basis of embodiment mono-, also has additional distillation device 6. Wherein, distillation device 6, for receiving and process brine waste, produces the concentrated waste water of saliferous, and the concentrated waste water of output saliferous. Crystallization apparatus 1 is also connected with distillation device 6, also for receiving and process the concentrated waste water of this saliferous, and output desalination crystal. That is to say, crystallization apparatus 1 is not only for receiving and process brine waste, the concentrated waste water of saliferous of also exporting for receiving and process distillation device 6, and output desalination crystal. Particularly, the entrance 61 of distillation device is for receiving brine waste, and the first outlet 62 of distillation device is connected with the condensed water entrance 12 of crystallization apparatus, for exporting the brine waste after concentrated to crystallization apparatus 1. The pipeline at distillation device 6 places and the pipeline at the first heat-exchanger rig place are parallel pipeline, that is to say, brine waste can input to crystallization apparatus 1 after distillation device 6 is concentrated, and brine waste also can input to crystallization apparatus 1 after the first heat-exchanger rig heat exchange.
When concrete enforcement, input to crystallization apparatus 1 because brine waste is divided into two-way, so in crystallization apparatus 1, two-way brine waste may be mixed together, jointly carry out crystal desalination, the desalination crystal of generation inputs to thawing apparatus 2 and melts; Two-way brine waste also can carry out crystal desalination separately, and the desalination crystal of generation all inputs to thawing apparatus 2 and melts.
Those skilled in the art should understand that, distillation device 6 generally comprises hydrothermal solution side, film and product water side, the brine waste of the accommodating reception of hydrothermal solution side, a part of water evaporation in brine waste produces steam, vapour transmission film enters and produces water side, steam can be condensed into water in product water side, and by second outlet 63 outputs of producing water side, steam also can directly be exported by second outlet 63 of producing water side with the form of steam.
When work, brine waste Zhong mono-tunnel inputs in the first heat-exchanger rig carries out heat exchange cooling, and the brine waste after cooling inputs in crystallization apparatus 1. Another road of brine waste inputs in the hydrothermal solution side in distillation device 6, and a part of water evaporation in brine waste produces steam, and vapour transmission film is exported by the second outlet 63. Brine waste in hydrothermal solution side, because a part of water evaporates, so brine waste is concentrated, forms the concentrated waste water of saliferous. The concentrated waste water of saliferous exports crystallization apparatus 1 to by the first outlet 62 of distillation device. Crystallization apparatus 1 not only receives the brine waste after the cooling of the first heat-exchanger rig output, also receives the concentrated waste water of saliferous that distillation device 6 is exported, and the brine waste after cooling and the concentrated waste water of saliferous is all processed to output desalination crystal.
Can find out, in the present embodiment, by distillation device 6, brine waste be concentrated, remove a part of water, alleviate the workload of crystallization apparatus 1, improve the operating efficiency of crystallization apparatus 1; In addition, in the present embodiment, brine waste is divided into two-way, processes respectively, crystallization apparatus 1 is worked better.
Continue referring to Fig. 3, in above-described embodiment, brine waste treatment system can also comprise: the 3rd heat exchanger 7. Wherein, the entrance 71 of the first passage of the 3rd heat exchanger is for receiving brine waste, and the outlet 72 of the first passage of the 3rd heat exchanger is connected with the entrance 61 of distillation device, for exporting the brine waste after heat exchange to distillation device 6. The entrance 73 of the second channel of the 3rd heat exchanger is connected with the outlet of supercritical reaction apparatus, the gas-liquid mixture of exporting for receiving supercritical reaction apparatus 3, and the outlet 74 of the second channel of the 3rd heat exchanger is for exporting the gas-liquid mixture after heat exchange. , the gas-liquid mixture that the brine waste in the first passage of the 3rd heat exchanger 7 and the supercritical reaction apparatus 3 in second channel are exported carries out heat exchange. Particularly, the entrance 73 of the second channel of the 3rd heat exchanger and the outlet 54 of the second channel of the second heat exchanger are connected. The 3rd heat exchanger 7 is parallel pipeline with the pipeline at distillation device 6 places and the pipeline at the first heat-exchanger rig place, that is to say, brine waste can input to crystallization apparatus 1 through the 3rd heat exchanger 7 heat exchange, distillation device 6 after concentrating successively, and brine waste also can input to crystallization apparatus 1 after the first heat-exchanger rig heat exchange.
When work, a wherein road of brine waste inputs in the first passage of the 3rd heat exchanger 7, waits for that heat exchange heats up; The gas-liquid mixture that supercritical reaction apparatus 3 is exported first carries out heat exchange cooling through the second heat exchanger 5, then inputs in the second channel of the 3rd heat exchanger 7, waits for heat exchange cooling again. In the 3rd heat exchanger 7, brine waste and gas-liquid mixture carry out heat exchange, and after brine waste heat exchange, temperature raises and exports distillation device 6 to, and after gas-liquid mixture heat exchange, temperature again reduces by the outlet 74 of the second channel of the 3rd heat exchanger and exports.
Can find out, in the present embodiment, gas-liquid mixture and the brine waste supercritical reaction apparatus 3 exported by the 3rd heat exchanger 7 carry out heat exchange, improve the temperature of brine waste, accelerate the speed of brine waste at the interior generation steam of distillation device 6, and then improved the operating efficiency of distillation device 6.
Embodiment tetra-:
Referring to Fig. 1, the present embodiment is on the basis of embodiment mono-, also has additional distillation device 6. Wherein, crystallization apparatus 1 is also for exporting saliferous condensed water, and distillation device 6 is connected with crystallization apparatus 1, for receiving and process saliferous condensed water, produces the saliferous condensed water after concentrating, and by the saliferous condensed water output after concentrated. Particularly, the entrance 61 of distillation device is connected with the liquid outlet 14 of crystallization apparatus, and distillation device 6 is for receiving and concentrated saliferous condensed water, and the saliferous condensed water after generation concentrated is by the first outlet 62 outputs of distillation device.
Those skilled in the art should understand that, distillation device 6 generally comprises hydrothermal solution side, film and product water side, the saliferous condensed water that the accommodating crystallization apparatus 1 of hydrothermal solution side is exported, a part of water evaporation in saliferous condensed water produces steam, vapour transmission film enters and produces water side, steam can be condensed into water in product water side, and by second outlet 63 outputs of producing water side, steam also can directly be exported by second outlet 63 of producing water side with the form of steam.
When work, the saliferous condensed water that crystallization apparatus 1 produces inputs in the hydrothermal solution side in distillation device 6, and a part of water evaporation in saliferous condensed water produces steam, and vapour transmission film is exported by the second outlet 63. Saliferous condensed water in hydrothermal solution side, because a part of water evaporates, so saliferous condensed water is concentrated again, forms the saliferous condensed water after concentrating, by the first outlet 62 outputs of distillation device.
Can find out, in the present embodiment, the saliferous condensed water of crystallization apparatus 1 being exported by distillation device 6 concentrates, and removes a part of water, is convenient to the follow-up processing to saliferous condensed water.
Continue referring to Fig. 1, in above-described embodiment, brine waste treatment system can also comprise: the 4th heat exchanger 8. Wherein, the entrance 81 of the first passage of the 4th heat exchanger is connected with the liquid outlet 14 of crystallization apparatus, for receiving the saliferous condensed water that crystallization apparatus 1 is exported, the outlet 82 of the first passage of the 4th heat exchanger is connected with the entrance 61 of distillation device, for exporting the saliferous condensed water after heat exchange to distillation device 6. The entrance 83 of the second channel of the 4th heat exchanger is connected with the outlet of supercritical reaction apparatus, the gas-liquid mixture of exporting for receiving supercritical reaction apparatus 3, and the outlet 84 of the second channel of the 4th heat exchanger is for exporting the gas-liquid mixture after heat exchange. , the gas-liquid mixture that the supercritical reaction apparatus 3 in the crystallization apparatus 1 in the first passage of the 4th heat exchanger 8 is exported saliferous condensed water and second channel is exported carries out heat exchange. Particularly, the entrance 83 of the second channel of the 4th heat exchanger and the outlet 54 of the second channel of the second heat exchanger are connected.
When work, the saliferous condensed water that crystallization apparatus 1 is exported inputs in the first passage of the 4th heat exchanger 8, waits for that heat exchange heats up; The gas-liquid mixture that supercritical reaction apparatus 3 is exported first carries out heat exchange cooling through the second heat exchanger 5, then inputs in the second channel of the 4th heat exchanger 8, waits for heat exchange cooling again. In the 4th heat exchanger 8, saliferous condensed water and gas-liquid mixture carry out heat exchange, and after the heat exchange of saliferous condensed water, temperature raises and exports distillation device 6 to, and after gas-liquid mixture heat exchange, temperature again reduces by the outlet 84 of the second channel of the 4th heat exchanger and exports.
Can find out, in the present embodiment, gas-liquid mixture and the saliferous condensed water supercritical reaction apparatus 3 exported by the 4th heat exchanger 8 are carried out heat exchange, improve the temperature of saliferous condensed water, accelerate the speed of saliferous condensed water at the interior generation steam of distillation device 6, and then improved the operating efficiency of distillation device 6.
In sum; in the present embodiment; utilize the principle of freeze desalination to carry out crystal desalination processing to brine waste by crystallization apparatus 1; desalting effect is good; after melting, the desalination crystal that brine waste treatment system in the present embodiment produces crystallization apparatus 1 inputs to supercritical reaction apparatus 3; effectively protect supercritical reaction apparatus 3, avoided the Corrosion blockage of salt pair supercritical reaction apparatus, guaranteed the safe operation of supercritical reaction apparatus.
Obviously, those skilled in the art can carry out various changes and modification and not depart from spirit and scope of the present utility model the utility model. Like this, if these amendments of the present utility model and within modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model is also intended to comprise these changes and modification interior.
Claims (10)
1. a brine waste treatment system, is characterized in that, comprising:
Crystallization apparatus (1), for receiving and process brine waste, and output desalination crystal;
Thawing apparatus (2), is connected with described crystallization apparatus (1), for receiving and melting described desalination crystal, and output desalination organic wastewater;
Supercritical reaction apparatus (3), is connected with described thawing apparatus (2), for receiving and process described desalination organic wastewater.
2. brine waste treatment system according to claim 1, is characterized in that, also comprises:
The first heat-exchanger rig, is arranged at described crystallization apparatus (1) before, for carrying out heat exchange to oxidant and the described brine waste of described supercritical reaction apparatus (3) input.
3. brine waste treatment system according to claim 2, is characterized in that, described the first heat-exchanger rig is First Heat Exchanger (4); Wherein,
The entrance (41) of the first passage of described First Heat Exchanger is for receiving brine waste, and the outlet (42) of the first passage of described First Heat Exchanger is connected with the entrance of described crystallization apparatus (1);
The entrance (43) of the second channel of described First Heat Exchanger is for receiving oxidant, and the outlet (44) of the second channel of described First Heat Exchanger is connected with the entrance of described supercritical reaction apparatus (3).
4. brine waste treatment system according to claim 1, is characterized in that, also comprises: the second heat-exchanger rig; Wherein,
Described thawing apparatus (2) is connected with described supercritical reaction apparatus (3) by described the second heat-exchanger rig, and described the second heat-exchanger rig is for carrying out heat exchange by the gas-liquid mixture of the desalination organic wastewater of described thawing apparatus (2) output and described supercritical reaction apparatus (3) output.
5. brine waste treatment system according to claim 4, is characterized in that, described the second heat-exchanger rig is the second heat exchanger (5); Wherein,
The entrance (51) of the first passage of described the second heat exchanger is connected with the outlet of described thawing apparatus (2), be used for receiving the desalination organic wastewater of described thawing apparatus (2) output, the outlet (52) of the first passage of described the second heat exchanger is connected with the entrance of described supercritical reaction apparatus (3), for exporting the described desalination organic wastewater after heat exchange to described supercritical reaction apparatus (3);
The entrance (53) of the second channel of described the second heat exchanger is connected with the outlet of described supercritical reaction apparatus (3), be used for receiving the gas-liquid mixture of described supercritical reaction apparatus (3) output, the outlet (54) of the second channel of described the second heat exchanger is for exporting the described gas-liquid mixture after heat exchange.
6. brine waste treatment system according to claim 2, is characterized in that, also comprises:
Distillation device (6), is connected with described the first heat-exchanger rig, for receiving and process brine waste, and to the concentrated waste water of described the first heat-exchanger rig output saliferous.
7. brine waste treatment system according to claim 1, is characterized in that, also comprises:
Distillation device (6), for receiving and process brine waste, and the concentrated waste water of output saliferous;
Described crystallization apparatus (1) is also connected with described distillation device (6), also for receiving and process the concentrated waste water of described saliferous, and output desalination crystal.
8. according to the brine waste treatment system described in claim 6 or 7, it is characterized in that, also comprise: the 3rd heat exchanger (7); Wherein,
The entrance (71) of the first passage of described the 3rd heat exchanger is for receiving brine waste, the outlet (72) of the first passage of described the 3rd heat exchanger is connected with the entrance of described distillation device (6), for exporting the described brine waste after heat exchange to described distillation device (6);
The entrance (73) of the second channel of described the 3rd heat exchanger is connected with the outlet of described supercritical reaction apparatus (3), be used for receiving the gas-liquid mixture of described supercritical reaction apparatus (3) output, the outlet (74) of the second channel of described the 3rd heat exchanger is for exporting the described gas-liquid mixture after heat exchange.
9. according to the brine waste treatment system described in any one in claim 1 to 5, it is characterized in that, also comprise: distillation device (6); Wherein,
Described crystallization apparatus (1) is also for exporting saliferous condensed water;
Described distillation device (6) is connected with described crystallization apparatus (1), for receiving and process described saliferous condensed water, and exports the saliferous condensed water after concentrating.
10. brine waste treatment system according to claim 9, is characterized in that, also comprises: the 4th heat exchanger (8); Wherein,
The entrance (81) of the first passage of described the 4th heat exchanger is connected with the liquid outlet of described crystallization apparatus (1), be used for receiving the described saliferous condensed water of described crystallization apparatus (1) output, the outlet (82) of the first passage of described the 4th heat exchanger is connected with the entrance of described distillation device (6), for exporting the described saliferous condensed water after heat exchange to described distillation device (6);
The entrance (83) of the second channel of described the 4th heat exchanger is connected with the outlet of described supercritical reaction apparatus (3), be used for receiving the gas-liquid mixture of described supercritical reaction apparatus (3) output, the outlet (84) of the second channel of described the 4th heat exchanger is for exporting the described gas-liquid mixture after heat exchange.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109293119A (en) * | 2018-11-28 | 2019-02-01 | 中国船舶重工集团公司第七〇九研究所 | A kind of device to desalinize seawater |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109293119A (en) * | 2018-11-28 | 2019-02-01 | 中国船舶重工集团公司第七〇九研究所 | A kind of device to desalinize seawater |
| CN109293119B (en) * | 2018-11-28 | 2021-06-15 | 中国船舶重工集团公司第七一九研究所 | Device for desalinating seawater |
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