CN220245834U - Treatment system for high-salt high-concentration poisonous degradation-resistant sewage - Google Patents
Treatment system for high-salt high-concentration poisonous degradation-resistant sewage Download PDFInfo
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- CN220245834U CN220245834U CN202321766541.6U CN202321766541U CN220245834U CN 220245834 U CN220245834 U CN 220245834U CN 202321766541 U CN202321766541 U CN 202321766541U CN 220245834 U CN220245834 U CN 220245834U
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- 239000010865 sewage Substances 0.000 title claims abstract description 118
- 231100000614 poison Toxicity 0.000 title claims abstract description 8
- 230000007096 poisonous effect Effects 0.000 title claims abstract description 8
- 230000015556 catabolic process Effects 0.000 title claims description 12
- 238000006731 degradation reaction Methods 0.000 title claims description 12
- 238000010438 heat treatment Methods 0.000 claims abstract description 27
- 239000003456 ion exchange resin Substances 0.000 claims abstract description 25
- 229920003303 ion-exchange polymer Polymers 0.000 claims abstract description 25
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 238000003860 storage Methods 0.000 claims description 18
- 239000007789 gas Substances 0.000 claims description 12
- 231100000331 toxic Toxicity 0.000 claims description 8
- 230000002588 toxic effect Effects 0.000 claims description 8
- 230000007797 corrosion Effects 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 229910001200 Ferrotitanium Inorganic materials 0.000 claims description 3
- 238000005485 electric heating Methods 0.000 claims description 3
- 239000003345 natural gas Substances 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims 1
- 238000012545 processing Methods 0.000 abstract description 7
- 238000013461 design Methods 0.000 abstract description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 11
- 229910052760 oxygen Inorganic materials 0.000 description 11
- 239000001301 oxygen Substances 0.000 description 11
- 150000003839 salts Chemical class 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 9
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 8
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 8
- 239000011575 calcium Substances 0.000 description 8
- 229910052791 calcium Inorganic materials 0.000 description 8
- 239000001569 carbon dioxide Substances 0.000 description 8
- 229910002092 carbon dioxide Inorganic materials 0.000 description 8
- 239000011777 magnesium Substances 0.000 description 8
- 229910052749 magnesium Inorganic materials 0.000 description 8
- 238000011033 desalting Methods 0.000 description 7
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000012528 membrane Substances 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 229920006395 saturated elastomer Polymers 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- 230000001988 toxicity Effects 0.000 description 3
- 231100000419 toxicity Toxicity 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 239000000701 coagulant Substances 0.000 description 2
- 230000001112 coagulating effect Effects 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000003303 reheating Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000002207 thermal evaporation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The utility model provides a treatment system for high-salt high-concentration poisonous refractory sewage, wherein an outlet of a precision filter is connected with an inlet of an ion exchange resin tank, an outlet of the ion exchange resin tank is connected with a shell side inlet of a heat exchanger, a shell side outlet of the heat exchanger is connected with an inlet of a low-heat heating device, an outlet of the low-heat heating device is connected with an inlet of a high-heat heater, an outlet of the high-heat heater is connected with an inlet of a high-pressure reactor, an outlet of the high-pressure reactor is connected with a tube side inlet of a heat exchanger, and a tube side outlet of the heat exchanger is connected with an inlet of a gas-liquid separator; the number of the high-pressure reactors is n, and n is more than or equal to 2; the high-pressure reactors are arranged in parallel; the high-pressure reactor is connected with an air supply device. The processing system has the advantages of reasonable design and strong practicability; by using the treatment system, the difficult-to-degrade sewage can be treated with low cost, and the difficult-to-degrade sewage can be recycled.
Description
Technical Field
The utility model relates to the technical field of degradation-resistant sewage treatment equipment, in particular to a treatment system for high-salt high-concentration poisonous degradation-resistant sewage.
Background
The refractory sewage is high concentration sewage with high organic matter content (cod not less than 500 g/L), high salt content and toxicity or toxicity to microbe in biochemical treatment, and is the main source of sewage in lubricating oil regeneration industry, chemical production industry and garbage treatment industry, and the generation of sewage has great treatment pressure.
At present, the treatment equipment for the nondegradable sewage mainly adopts thermal evaporation desalting equipment to carry out desalting treatment by assisting with membrane method desalting equipment, and the desalted sewage is subjected to biochemical treatment by adopting anaerobic equipment and aerobic equipment, so that the obtained treated water barely meets the treatment standard. However, the processing system has the disadvantage of high processing cost, such as large equipment investment, which causes the problem of complex processing flow; the thermal evaporation desalting equipment has the advantages that the cost is too high due to the large amount of heat input in the use process, the treatment membrane can be frequently replaced due to the blockage of the membrane during the auxiliary desalting of the membrane equipment, the treatment cost is also increased, in the desalting process, some characteristic pollutants with bactericidal property or toxicity cannot be thoroughly removed or converted, the subsequent biochemical treatment is also a difficult problem, and the existence of the problems brings huge environmental protection pressure and cost pressure to the treatment of the difficult-to-degrade sewage of enterprises, and influences the sustainable development of the enterprises.
Therefore, the treatment system with low cost and simple flow is of great significance for the treatment of the degradation-resistant sewage.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides a treatment system for high-salt high-concentration poisonous and degradation-resistant sewage, which comprises a precision filter, an ion exchange resin tank, a heat exchanger, a low-heat heating device, a high-heat heater, a high-pressure reactor and a gas-liquid separator; the processing system has the advantages of reasonable design and strong practicability; by using the treatment system, the difficult-to-degrade sewage can be treated with low cost, and the difficult-to-degrade sewage can be recycled.
On the basis of the prior art, the utility model provides a treatment system for high-salt high-concentration poisonous and degradation-resistant sewage, which comprises a precision filter, an ion exchange resin tank, a heat exchanger, a low-heat heating device, a high-heat heater, a high-pressure reactor and a gas-liquid separator;
the outlet of the precise filter is connected with the inlet of the ion exchange resin tank, the outlet of the ion exchange resin tank is connected with the shell side inlet of the heat exchanger, the shell side outlet of the heat exchanger is connected with the inlet of the low heat heating device, the outlet of the low heat heating device is connected with the inlet of the high heat heater, the outlet of the high heat heater is connected with the inlet of the high pressure reactor, the outlet of the high pressure reactor is connected with the tube side inlet of the heat exchanger, and the tube side outlet of the heat exchanger is connected with the inlet of the gas-liquid separator;
the number of the high-pressure reactors is n, and n is more than or equal to 2; the high-pressure reactors are arranged in parallel;
the high-pressure reactor is connected with an air supply device;
when the device is used, sewage enters the precise filter, the precise filter intercepts particulate matters in the sewage, the subsequent softening treatment is facilitated, the sewage filtered by the precise filter enters the ion exchange resin tank for example exchange, and calcium, magnesium and other ions in the sewage are adsorbed on the resin in an exchange manner, so that the sewage is softened, and the subsequent high-temperature reaction process is ensured to be free of permanent hardness salts such as calcium, magnesium and the like, thereby influencing the safe operation of subsequent equipment; the sewage treated by the ion exchange resin tank enters a heat exchanger for preheating, the sewage after heat exchange enters a low-heat heating device, the sewage is heated to saturated steam pressure of about 1MPa, then the sewage is introduced into a high-heat heater for reheating, and the saturated steam is heated to superheated steam with the temperature of 380 ℃; feeding the sewage superheated steam at 380 ℃ into one of the high-pressure reactors, and continuously feeding the superheated steam into the other high-pressure reactor when the pressure in the high-pressure reactor reaches 1MPa, so as to realize continuous alternate operation of a plurality of high-pressure reactors; pure oxygen or air is fed into the high-pressure reactor through the air feeding device, the pressure in the high-pressure reactor is increased to 22MPa, the organic matters and the oxygen are mixed to rapidly undergo severe oxidation reaction and release a large amount of heat, the organic matters are completely decomposed into carbon dioxide and water to be discharged to the heat exchanger, after heat exchange, the carbon dioxide and the water are separated by the gas-liquid separator, and then the gas is discharged, and the liquid is discharged or recycled, so that the full utilization of heat energy is realized, and the treatment cost is reduced.
Preferably, a filter element is arranged in the precision filter, the aperture of the filter element is smaller than 5 mu m, and particles below 5 mu m in the sewage can be completely intercepted, so that the subsequent softening treatment is ensured; the ion exchange resin layer is arranged in the ion exchange resin tank, and under the exchange function of the resin layer, calcium, magnesium and other ions in the sewage are adsorbed on the resin in an exchange way, so that the sewage is softened at the moment, and the situation that permanent hardness salts such as calcium, magnesium and the like do not appear in the subsequent high-temperature reaction process is ensured, so that the safe operation of subsequent equipment is influenced.
Preferably, the treatment system further comprises a pretreatment unit and a sewage water collecting tank, wherein an outlet of the pretreatment unit is connected with an inlet of the sewage water collecting tank, and an outlet of the sewage water collecting tank is connected with an inlet of the precision filter; a water pump is arranged on a connecting pipeline of the sewage water collecting tank and the precision filter;
according to the condition of the sewage difficult to degrade, coagulant and flocculant can be added into the pretreatment unit to carry out coagulating sedimentation treatment, so that suspended matters and large-particle matters in the sewage are removed; or adding acid and alkali according to different pH values of the nondegradable sewage to adjust the pH value to be between 6 and 9; or if the nondegradable sewage contains oil, the coagulation air floatation oil removal treatment can be carried out; removing or adjusting suspended matters, pH, grease and the like in the sewage to meet the indexes required by subsequent treatment through treatment of pretreatment equipment; the inlet of the sewage water collecting tank is connected with the outlet of the pretreatment unit, and the outlet of the sewage water collecting tank is connected with the precise filter; the pretreated sewage flows into a sewage collecting tank through a pipeline for centralized treatment; after the pretreated sewage reaches a certain amount, a water inlet pump is started to pump the sewage into a precise filter, and the precise filter completely intercepts particles below 5 microns in the sewage so as to ensure the subsequent softening treatment.
Preferably, the air supply device comprises an air storage tank and a high-pressure air compressor, and an inlet of the air storage tank is connected with an outlet of the high-pressure air compressor; the high-pressure air compressor is used for introducing air into the air storage tank, and the pressure in the air storage tank reaches 22MPa.
Preferably, two high-pressure reactors are provided, namely a high-pressure reactor A and a high-pressure reactor B; the outlet of the high-heat heater is divided into two paths, one path is connected with the inlet of the high-pressure reactor A, and the other path is connected with the inlet of the high-pressure reactor B, so that the high-pressure reactor A and the high-pressure reactor B are arranged in parallel; the outlet of the high-pressure reactor A and the outlet of the high-pressure reactor B are both connected with the tube side inlet of the heat exchanger, the outlet of the air storage tank is divided into two paths, one path is connected with the gas inlet of the high-pressure reactor A, and the other path is connected with the gas inlet of the high-pressure reactor B; through the arrangement, sewage to be treated and oxygen can be respectively fed into the high-pressure reactor A and the high-pressure reactor B, so that the high-pressure reactor A and the high-pressure reactor B can independently operate, continuous and alternate sewage treatment difficult to degrade is facilitated, and the treatment efficiency is improved.
Preferably, a pressure sensor A and a program controller A are arranged on the high-pressure reactor A, an electromagnetic valve A is arranged on a connecting pipeline of the high-pressure reactor A and the high-heat heater, an electromagnetic valve B is arranged on a connecting pipeline of the high-pressure reactor A and the heat exchanger, and an electromagnetic valve C is arranged on a connecting pipeline of the high-pressure reactor A and the air storage tank; the program controller A is electrically connected with the electromagnetic valve A, the electromagnetic valve B and the electromagnetic valve C respectively;
when the temperature of sewage in the high-heat heater reaches 380 ℃, under the control of a program controller A, opening an electromagnetic valve A, sending the sewage at 380 ℃ into a high-pressure reactor A, when the pressure sensor A detects that the pressure in the high-pressure reactor A reaches 1MPa, closing the electromagnetic valve A and opening an electromagnetic valve C, introducing high-pressure oxygen or air (22 MPa) in a gas storage tank into the high-pressure reactor A, mixing organic matters in the sewage and the oxygen, rapidly carrying out severe oxidation reaction, releasing a large amount of heat, controlling the reaction time of the high-pressure reactor A, opening the electromagnetic valve B after the reaction is finished, discharging carbon dioxide and water which are completely decomposed and produced by the organic matters into a heat exchanger, preheating the sewage to be treated, fully utilizing heat energy and reducing the treatment cost;
the high-pressure reactor B is provided with a pressure sensor B and a program controller B; a solenoid valve D is arranged on a connecting pipeline of the high-pressure reactor B and the high-heat heater, a solenoid valve E is arranged on a connecting pipeline of the high-pressure reactor B and the heat exchanger, and a solenoid valve F is arranged on a connecting pipeline of the high-pressure reactor B and the air supply device;
when the high-pressure reactor A is used for treatment, 380 ℃ sewage is introduced into the high-pressure reactor B for treatment according to the treatment mode of the high-pressure reactor A, so that the high-pressure reactor A and the high-pressure reactor B are alternately or simultaneously treated, and the treatment efficiency is improved.
Preferably, the heating mode of the low-heat heating device is one of electric heating, heat conducting oil heating and natural gas heating, and the heating mode is determined according to on-site processing conditions.
Preferably, in order to ensure the service life of the high-heat heater, a corrosion-resistant titanium steel plate is arranged on the inner wall of the high-heat heater so as to prevent corrosion of salts.
Compared with the prior art, the utility model has the beneficial effects that the sewage is softened by arranging the ion exchange resin tank, so that the sewage is prevented from being precipitated into solid salt in the high-temperature high-pressure reaction process, and no special desalting is needed; by arranging the high-pressure reactor and feeding pure oxygen or air into the high-pressure reactor through the air feeding device, organic matters are subjected to high-temperature high-pressure oxidation treatment in the high-pressure reactor without biochemical treatment, membrane treatment and the like, sewage can be heated to a higher temperature and pressurized to a higher pressure, the organic matters in the sewage are completely reacted by directly carrying out severe oxidation reaction by oxygen (oxygen in the air or pure oxygen), and finally, reaction products are discharged in the form of carbon dioxide and water, so that the subsequent treatment process is completely omitted, toxic or bactericidal characteristic pollutants can be effectively decomposed, and the water discharged through the gas-liquid separator can be recycled in the original production process or used as circulating cooling water in public engineering, so that the low-cost standard reaching operation of the whole treatment system can be ensured, and the low-cost equipment investment can be ensured. The arrangement ensures that the processing system has the advantages of reasonable design and strong practicability; by using the treatment system, the difficult-to-degrade sewage can be treated with low cost, and the difficult-to-degrade sewage can be recycled.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a schematic diagram of the structure of the present utility model.
In the figure, a 1-pretreatment unit, a 2-sewage collecting tank, a 3-precision filter, a 4-ion exchange resin tank, a 5-heat exchanger, a 6-low heat heating device, a 7-high heat heater, an 8-high pressure reactor A, a 9-high pressure reactor B, a 10-gas-liquid separator, a 11-filter element, a 12-ion exchange resin layer, a 1301-air storage tank, a 1302-high pressure air compressor, a 14-pressure sensor A, a 15-program controller A, a 16-electromagnetic valve A, a 17-electromagnetic valve B, a 18-electromagnetic valve C, a 19-pressure sensor B, a 20-program controller B, a 21-electromagnetic valve D, a 22-electromagnetic valve E, a 23-electromagnetic valve F and a 24-water pump.
Detailed Description
In order to make the technical solution of the present utility model better understood by those skilled in the art, the technical solution of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
Referring to fig. 1, the utility model provides a treatment system for high-salt high-concentration poisonous refractory sewage, which comprises a pretreatment unit 1, a sewage collecting tank 2, a precision filter 3, an ion exchange resin tank 4, a heat exchanger 5, a low-heat heating device 6, a high-heat heater 7, a high-pressure reactor A8, a high-pressure reactor B9 and a gas-liquid separator 10;
the outlet of the pretreatment unit 1 is connected with the inlet of the sewage water collecting tank 2, and the outlet of the sewage water collecting tank 2 is connected with the inlet of the precise filter 3;
the outlet of the precision filter 3 is connected with the inlet of the ion exchange resin tank 4, the outlet of the ion exchange resin tank 4 is connected with the shell side inlet of the heat exchanger, the shell side outlet of the heat exchanger is connected with the inlet of the low heat heating device 6, and the outlet of the low heat heating device 6 is connected with the inlet of the high heat heater 7;
the filter element 11 is arranged in the precision filter 3, the aperture of the filter element 11 is smaller than 5 mu m, and the filter element can intercept all particles below 5 mu m in the sewage so as to ensure the subsequent softening treatment; an ion exchange resin layer 12 is arranged in the ion exchange resin tank 4, and under the exchange function of the resin layer, calcium, magnesium and other ions in the sewage are adsorbed on the resin in an ion exchange manner, so that the sewage is softened at the moment, and the situation that permanent hardness salts such as calcium, magnesium and the like do not appear in the subsequent high-temperature reaction process is ensured, so that the safe operation of subsequent equipment is influenced;
in this embodiment, the heating mode of the low-heat heating device 6 is electric heating;
the outlet of the high-heat heater 7 is divided into two paths, one path is connected with the inlet of the high-pressure reactor A8, and the other path is connected with the inlet of the high-pressure reactor B9, so that the high-pressure reactor A8 and the high-pressure reactor B9 are arranged in parallel;
the outlet of the high-pressure reactor A8 and the outlet of the high-pressure reactor B9 are both connected with the tube side inlet of the heat exchanger 5, and the tube side outlet of the heat exchanger 5 is connected with the inlet of the gas-liquid separator 10;
the air supply device comprises an air storage tank 1301 and a high-pressure air compressor 1302, wherein an inlet of the air storage tank 1301 is connected with an outlet of the high-pressure air compressor 1302; the high-pressure air compressor 1302 is used for introducing air into the air storage tank 1301, and the pressure in the air storage tank 1301 reaches 22MPa;
the outlet of the air storage tank 1301 is divided into two paths, one path is connected with the gas inlet of the high-pressure reactor A8, and the other path is connected with the gas inlet of the high-pressure reactor B9; through the arrangement, the sewage to be treated and oxygen can be respectively fed into the high-pressure reactor A8 and the high-pressure reactor B9, so that the high-pressure reactor A8 and the high-pressure reactor B9 can independently operate, continuous and alternate treatment of the sewage difficult to degrade is facilitated, and the treatment efficiency is improved;
the high-pressure reactor A8 is provided with a pressure sensor A14 and a program controller A15, a solenoid valve A16 is arranged on a connecting pipeline of the high-pressure reactor A8 and the high-heat heater 7, a solenoid valve B17 is arranged on a connecting pipeline of the high-pressure reactor A8 and the heat exchanger 5, and a solenoid valve C18 is arranged on a connecting pipeline of the high-pressure reactor A8 and the air storage tank 1301; the program controller A15 is electrically connected with the solenoid valve A16, the solenoid valve B17 and the solenoid valve C18 respectively;
a pressure sensor B19 and a program controller B20 are arranged on the high-pressure reactor B9; a solenoid valve D21 is arranged on the connecting pipeline of the high-pressure reactor B9 and the high-heat heater 7, a solenoid valve E22 is arranged on the connecting pipeline of the high-pressure reactor B9 and the heat exchanger 5, and a solenoid valve F23 is arranged on the connecting pipeline of the high-pressure reactor B9 and the air supply device; the program controller B20 is electrically connected with the solenoid valve D21, the solenoid valve E22 and the solenoid valve F23 respectively;
when in use, sewage enters the pretreatment unit 1, coagulant and flocculant can be added according to specific conditions of the sewage to carry out coagulating sedimentation treatment, and suspended matters and large-particle matters in the sewage are removed; or adding acid and alkali according to different pH values of the nondegradable sewage to adjust the pH value to be between 6 and 9; or if the nondegradable sewage contains oil, the coagulation air floatation oil removal treatment can be carried out; removing or adjusting suspended matters, pH, grease and the like in the sewage to meet the indexes required by subsequent treatment through treatment of pretreatment equipment;
the pretreated sewage flows into a sewage collecting tank 2 for centralized treatment; after the pretreated sewage reaches a certain amount, the sewage in the sewage collecting tank 2 is sent into the precise filter 3, in order to improve the conveying efficiency of the sewage in the sewage collecting tank 2 into the precise filter 3, a water pump 24 is arranged on a pipeline between the sewage collecting tank 2 and the precise filter 3, the sewage is driven into the precise filter 3 by starting the water inlet pump 24, and the filter element 11 arranged in the precise filter 3 can completely intercept particles below 5 microns in the sewage so as to ensure the subsequent softening treatment;
the sewage filtered by the precise filter 3 enters an ion exchange resin tank 4, and under the exchange function of an ion exchange resin layer 12, calcium, magnesium and other ions in the sewage are adsorbed on the resin in an ion exchange way, and the sewage is softened at the moment, so that the permanent hardness salts such as calcium, magnesium and the like are not generated in the subsequent high-temperature reaction process, and the safe operation of subsequent equipment is influenced;
the softened sewage enters a heat exchanger, the heat exchanger heats the sewage to a certain temperature by utilizing waste heat and then enters a low-heat heating device 6, and the sewage is heated to saturated steam pressure of about 1 MPa; the sewage which is heated into saturated steam enters a high-heat heater 7 for reheating, the saturated steam is heated into superheated steam, and the temperature reaches 380 ℃; in the low-heat heating device 6, part of organic matters which are easy to degrade in the sewage are decomposed, and the organic matters in the sewage are obviously reduced; when in the high-heat heater 7, organic matters in the sewage are partially degraded at high temperature; salts such as sodium chloride, sodium carbonate and the like contained in the sewage are separated out and scattered on the inner wall of the high-heat heater 7, and the salts need to be cleaned regularly;
in order to ensure the service life of the high-heat heater 7, the high-heat heater 7 is lined with a corrosion-resistant titanium steel plate to prevent corrosion of salts;
when the temperature of the sewage in the high-heat heater 7 reaches 380 ℃, under the control of a program controller A15, opening an electromagnetic valve A16, sending the sewage at 380 ℃ into a high-pressure reactor A8, when a pressure sensor A14 detects that the pressure in the high-pressure reactor A8 reaches 1MPa, closing the electromagnetic valve A16 and opening an electromagnetic valve C18, introducing high-pressure oxygen or air (22 MPa) in a gas storage tank 1301 into the high-pressure reactor A8, rapidly carrying out severe oxidation reaction on the mixture of organic matters and oxygen in the sewage and releasing a large amount of heat, controlling the reaction time of the high-pressure reactor A8 to be 12min, opening an electromagnetic valve B17 after the reaction is finished, discharging carbon dioxide and water which are completely decomposed and produced by the organic matters into a heat exchanger 5, preheating the softened sewage, thereby fully utilizing heat energy and reducing the treatment cost; the carbon dioxide and water after heat exchange enter the gas-liquid separator 10, the gas is discharged from the upper port of the gas-liquid separator 10, and the liquid is discharged from the lower port of the gas-liquid separator 10 to a water point for recycling;
in the reaction process of the high-pressure reactor A8, the electromagnetic valve A16 is closed, the electromagnetic valve B17 is opened,
under the control of a program controller B20, opening an electromagnetic valve D21, sending 380 ℃ sewage into a high-pressure reactor B9, when the pressure sensor B19 detects that the pressure in the high-pressure reactor B9 reaches 1MPa, closing the electromagnetic valve D21 and opening an electromagnetic valve F23, introducing high-pressure oxygen or air (22 MPa) in a gas storage tank 1301 into the high-pressure reactor B9, rapidly carrying out violent oxidation reaction on organic matters in the sewage and oxygen to release a large amount of heat, controlling the reaction time of the high-pressure reactor B9 to be 12min, opening an electromagnetic valve E22 after the reaction is finished, discharging carbon dioxide and water which are completely decomposed and produced by the organic matters into a heat exchanger 5, preheating the softened sewage, fully utilizing heat energy and reducing the treatment cost; the carbon dioxide and water after heat exchange enter the gas-liquid separator 10, the gas is discharged from the upper port of the gas-liquid separator 10, and the liquid is discharged from the lower port of the gas-liquid separator 10 to a water point for recycling;
the high-pressure reactor A8 and the high-pressure reactor B9 continuously and alternately run, so that continuous treatment of sewage is realized.
The present utility model has been described in detail above. The "upper", "lower", "left" and "right" in this embodiment are described with respect to the positions in the drawings of the specification. Although the present utility model has been described in detail by way of preferred embodiments with reference to the accompanying drawings, the present utility model is not limited thereto. Various equivalent modifications and substitutions may be made in the embodiments of the present utility model by those skilled in the art without departing from the spirit and scope of the present utility model, and it is intended that all such modifications and substitutions be within the scope of the present utility model/be within the scope of the present utility model as defined by the appended claims. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (8)
1. A treatment system for high-salt high-concentration poisonous refractory sewage is characterized by comprising a precise filter, an ion exchange resin tank, a heat exchanger, a low-heat heating device, a high-heat heater, a high-pressure reactor and a gas-liquid separator;
the outlet of the precise filter is connected with the inlet of the ion exchange resin tank, the outlet of the ion exchange resin tank is connected with the shell side inlet of the heat exchanger, the shell side outlet of the heat exchanger is connected with the inlet of the low heat heating device, the outlet of the low heat heating device is connected with the inlet of the high heat heater, the outlet of the high heat heater is connected with the inlet of the high pressure reactor, the outlet of the high pressure reactor is connected with the tube side inlet of the heat exchanger, and the tube side outlet of the heat exchanger is connected with the inlet of the gas-liquid separator;
the number of the high-pressure reactors is n, and n is more than or equal to 2; the high-pressure reactors are arranged in parallel;
the high-pressure reactor is connected with an air supply device.
2. The treatment system for high-salt high-concentration toxic degradation-resistant sewage as set forth in claim 1, wherein a filter element is installed in the precision filter, and the pore diameter of the filter element is less than 5 μm; an ion exchange resin layer is arranged in the ion exchange resin tank.
3. The treatment system for high-salt high-concentration toxic refractory sewage according to claim 1, further comprising a pretreatment unit and a sewage collecting tank, wherein an outlet of the pretreatment unit is connected with an inlet of the sewage collecting tank, and an outlet of the sewage collecting tank is connected with an inlet of the precision filter; a water pump is arranged on a connecting pipeline of the sewage collecting tank and the precision filter.
4. The treatment system for high-salt high-concentration toxic degradation-resistant sewage as set forth in claim 1, wherein the air supply means comprises an air tank and a high-pressure air compressor, and an inlet of the air tank is connected with an outlet of the high-pressure air compressor.
5. The treatment system for high-salt high-concentration toxic degradation-resistant sewage according to claim 4, wherein two high-pressure reactors are provided, namely a high-pressure reactor A and a high-pressure reactor B; the outlet of the high-heat heater is divided into two paths, one path is connected with the inlet of the high-pressure reactor A, and the other path is connected with the inlet of the high-pressure reactor B; the outlet of the high-pressure reactor A and the outlet of the high-pressure reactor B are connected with the tube side inlet of the heat exchanger, the outlet of the air storage tank is divided into two paths, one path is connected with the gas inlet of the high-pressure reactor A, and the other path is connected with the gas inlet of the high-pressure reactor B.
6. The treatment system for high-salt high-concentration toxic degradation-resistant sewage according to claim 5, wherein a pressure sensor A and a program controller A are arranged on the high-pressure reactor A, an electromagnetic valve A is arranged on a connecting pipeline of the high-pressure reactor A and the high-heat heater, an electromagnetic valve B is arranged on a connecting pipeline of the high-pressure reactor A and the heat exchanger, and an electromagnetic valve C is arranged on a connecting pipeline of the high-pressure reactor A and the air storage tank; the program controller A is electrically connected with the electromagnetic valve A, the electromagnetic valve B and the electromagnetic valve C respectively;
the high-pressure reactor B is provided with a pressure sensor B and a program controller B; an electromagnetic valve D is arranged on the connecting pipeline of the high-pressure reactor B and the high-heat heater, an electromagnetic valve E is arranged on the connecting pipeline of the high-pressure reactor B and the heat exchanger, and an electromagnetic valve F is arranged on the connecting pipeline of the high-pressure reactor B and the air supply device.
7. The treatment system for high-salt high-concentration toxic degradation-resistant sewage according to claim 1, wherein the heating mode of the low-heat heating device is one of electric heating, conduction oil heating and natural gas heating.
8. The treatment system for high-salt high-concentration toxic refractory sewage according to claim 1, wherein a corrosion-resistant titanium steel plate is provided on the inner wall of the high-heat heater.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321766541.6U CN220245834U (en) | 2023-07-06 | 2023-07-06 | Treatment system for high-salt high-concentration poisonous degradation-resistant sewage |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202321766541.6U CN220245834U (en) | 2023-07-06 | 2023-07-06 | Treatment system for high-salt high-concentration poisonous degradation-resistant sewage |
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| CN220245834U true CN220245834U (en) | 2023-12-26 |
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| CN202321766541.6U Active CN220245834U (en) | 2023-07-06 | 2023-07-06 | Treatment system for high-salt high-concentration poisonous degradation-resistant sewage |
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| Country | Link |
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| CN (1) | CN220245834U (en) |
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2023
- 2023-07-06 CN CN202321766541.6U patent/CN220245834U/en active Active
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