CN105776711A - Industrial wastewater resource zero-discharge system - Google Patents
Industrial wastewater resource zero-discharge system Download PDFInfo
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- CN105776711A CN105776711A CN201610304882.XA CN201610304882A CN105776711A CN 105776711 A CN105776711 A CN 105776711A CN 201610304882 A CN201610304882 A CN 201610304882A CN 105776711 A CN105776711 A CN 105776711A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/26—Treatment of water, waste water, or sewage by extraction
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
- C02F2101/345—Phenols
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/007—Modular design
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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Abstract
The invention relates to an industrial wastewater resource zero-discharge system. The industrial wastewater resource zero-discharge system comprises a pretreatment unit, a resource treatment unit, a membrane concentration unit, a MVR (melt volume flow rate) evaporation and concentration unit, an incineration and purification unit, an MVR quality crystallizing unit, and a self control and Internet of Things remote monitoring diagnosis management unit, wherein the pretreatment unit comprises an oil removal device, a filtering device, a blowoff device and an extraction device; the resource treatment unit comprises an acid adsorbing device, an organic matter adsorbing device and an ion adsorbing device; the membrane concentration unit comprises a high-grade oxidizing device, an ultrafiltering device and a reverse osmosis device; the MVR evaporation and concentration unit comprises a low-salinity wastewater MVR evaporation device and a high-salinity wastewater MVR evaporation device. The industrial wastewater resource zero-discharge system has the advantages that the defect of difficult biochemical treatment of industrial wastewater which has high slat content and high COD (chemical oxygen demand) content and contains oil, acid and heavy metals is overcome; the valent components are recycled according to quality, the resources are utilized, and the zero discharge is reliably realized; by adopting the Internet of Things remote monitoring diagnosis, the operation, management and maintenance of a project are favorably realized.
Description
Technical field
The present invention relates to a kind of industrial wastewater recycling and zero discharge system, especially a kind of industrial wastewater materializing strategy recycling and zero discharge system managed by Internet of Things remote monitoring diagnostic, belong to resource and environment filed.
Background technology
Current industrial wastewater pretreatment process is long, complex process, and investment and operating cost are high, and treatment effect is not ideal enough；Current industrial wastewater No Assetsization processes technique or recycling treatment is insufficient, wastes resource, and processing cost is high；Membrance concentration investment and operating cost after current industrial wastewater biochemistry are high, seriously polluted, it is difficult to permanent stable operation；The group technology that after mainly adopting materialized pretreatment, biochemical plus depth processes such as current industrial wastewater such as coal chemical industrial waste water, long flow path, energy consumption and processing cost are high, effect is unstable, waste water evaporation concentration equipment after membrance concentration mainly adopts titanium alloy material heat exchanger, separator and single-stage high-speed to be centrifuged vapour compression machine, heat exchange area is little, and compressor temperature rise and energy consumption are high, and investment and operating cost are high；It is high that crystallizer mainly adopts titanium alloy material heat exchanger, crystallizer and single-stage high-speed to be centrifuged vapour compression machine, cost and energy consumption, and the COD of concentration is difficult to biochemistry and oxidation, affects the crystallization of salt and the purity of crystal salt；Current industrial wastewater system empty network remote monitoring and diagnosis and fault pre-alarming measure, the early warning of fault is safeguarded and judges that maintenance is difficult to accurately and timely.
Summary of the invention
Long in order to solve existing industrial wastewater pretreatment process, complex process, investment and operating cost are high, the dissatisfactory problem for the treatment of effect, the invention provides a kind of industrial wastewater recycling and zero discharge system, including pretreatment unit；Pretreatment unit includes degreasing unit, elevator pump, defecator, stripping device and extraction equipment；The outlet of degreasing unit is connected to the water inlet of defecator by elevator pump pipeline, and the outlet of defecator is connected to the water inlet of stripping device by pipeline, and stripping device outlet is connected to the water inlet of extraction equipment.Adopt above-mentioned pretreating process flow process simple, treatment effect can be improved, reduce investment and operating cost, create favorable conditions for subsequent treatment process.
Processing technique for current industrial wastewater No Assetsization or recycling treatment is insufficient, waste resource, the problem that processing cost is high, as the scheme that limits further of the present invention, native system also includes recycling treatment unit；Recycling treatment unit includes acid adsorbent equipment, Adsorption of Organic device and ionic adsorption device；The outlet of extraction equipment is connected to the water inlet of acid adsorbent equipment by pipeline, the outlet of acid adsorbent equipment is connected to the water inlet of Adsorption of Organic device by pipeline, and the outlet of Adsorption of Organic device is connected to the water inlet of ionic adsorption device by pipeline.Adopt above-mentioned process technique, the valuable resource in recoverable waste water, reduce processing cost, create favorable conditions for subsequent treatment process.
Invest for the membrance concentration after current industrial wastewater biochemistry and operating cost is high, seriously polluted, it is difficult to the problem of permanent stable operation, as the scheme that limits further of the present invention, native system also includes membrance concentration unit；Membrance concentration unit includes advanced oxidation device, ultrafiltration apparatus and reverse osmosis unit；The outlet of ionic adsorption device is connected to the water inlet of advanced oxidation device by pipeline, and the outlet of advanced oxidation device is connected to the water inlet of ultrafiltration apparatus by pipeline, and the outlet of ultrafiltration apparatus is connected to the water inlet of reverse osmosis unit by pipeline.Adopting above-mentioned Low-salinity membrance concentration technique, it is not necessary to biochemical treatment, investment and operating cost are low, and contamination resistance is strong, stable, can reduce the subsequent treatment process water yield and investment.
For the group technology that biochemical plus depth after the main employing materialized pretreatment such as current industrial wastewater such as coal chemical industrial waste water processes, long flow path, energy consumption and processing cost are high, effect is unstable, waste water evaporation concentration equipment after membrance concentration mainly adopts titanium alloy material heat exchanger, separator and single-stage high-speed to be centrifuged vapour compression machine, heat exchange area is little, compressor temperature rise and energy consumption are high, the problems such as investment is high with operating cost, as the scheme that limits further of the present invention, native system also includes MVR evaporation and concentration unit；MVR evaporation and concentration unit include Low-salinity waste water MVR vaporising device, high salinity waste water MVR vaporising device, Low-salinity waste water MVR concentrated solution circulating pump and and high salinity waste water MVR secondary crystallization heat exchanger, Low-salinity waste water MVR vaporising device includes Low-salinity waste water MVR vapor seperator, Low-salinity waste water MVR single-stage radial compressor and Low-salinity waste water MVR evaporating heat exchanger, and high salinity waste water MVR vaporising device includes high salinity waste water MVR vapor seperator, high salinity waste water MVR two stage centrifugal compressor and high salinity waste water MVR evaporating heat exchanger；Low-salinity waste water MVR evaporating heat exchanger and high salinity waste water MVR evaporating heat exchanger are doughnut heat exchanger, and Low-salinity waste water MVR vapor seperator and high salinity waste water MVR vapor seperator are fiberglass separator；nullThe dense water out of reverse osmosis unit is connected to the water inlet of high salinity waste water MVR secondary crystallization heat exchanger by reverse osmosis concentrated water circulating pump pipeline，The outlet of high salinity waste water MVR secondary crystallization heat exchanger is connected to the water inlet of Low-salinity waste water MVR evaporating heat exchanger by pipeline，The outlet of Low-salinity waste water MVR evaporating heat exchanger is connected to the water inlet of Low-salinity waste water MVR vapor seperator by pipeline，The liquid outlet of Low-salinity waste water MVR vapor seperator is connected to the inlet of high salinity waste water MVR evaporating heat exchanger by Low-salinity waste water MVR concentrated solution circulating pump pipeline，The indirect steam outlet of Low-salinity waste water MVR vapor seperator is connected to the air intake of Low-salinity waste water MVR single-stage radial compressor by pipeline，The venthole of Low-salinity waste water MVR single-stage radial compressor is connected to the air intake of Low-salinity waste water MVR evaporating heat exchanger by pipeline，The liquid outlet of high salinity waste water MVR evaporating heat exchanger is connected to the inlet of high salinity waste water MVR vapor seperator by pipeline，The indirect steam outlet of high salinity waste water MVR vapor seperator is connected to the air intake of high salinity waste water MVR two stage centrifugal compressor by pipeline，The venthole of high salinity waste water MVR two stage centrifugal compressor is connected to the air intake of high salinity waste water MVR evaporating heat exchanger by pipeline.Adopt above-mentioned MVR evaporating and concentrating process, eliminate biochemical processing process, treatment effect is reliable and stable, evaporation concentration equipment adopts non-metallic material, and corrosion-resistant fouling performance is good, manufactures material and technological requirement is low, safety in operation is good, investment and operation energy consumption are low, can create favorable conditions for subsequent treatment process, reduce the subsequent treatment process water yield and investment.
Unstable for biochemical effects after the main employing materialized pretreatment such as current industrial wastewater such as coal chemical industrial waste water, before crystallization, the COD of concentration is difficult to biochemistry and oxidation, affect the crystallization of salt and the problem of the purity of crystal salt, as the scheme that limits further of the present invention, native system also includes burning clean unit；Burn clean unit for burning purification furnace；The liquid outlet of high salinity waste water MVR vapor seperator is connected to burn the inlet of purification furnace by high salinity waste water MVR concentrated solution circulating pump pipeline.Adopting the high-concentration waste water after the concentration of this PROCESS FOR TREATMENT, can decompose COD by exhaustive oxidation, effect stability is reliable, is conducive to the later crystallization of salinity to purify and recycling.
Mainly adopting titanium alloy material heat exchanger, crystallizer and single-stage high-speed to be centrifuged the problem that vapour compression machine, cost of investment and energy consumption are high for current crystallizer, as the scheme that limits further of the present invention, native system also includes MVR sub-prime crystalline element；MVR sub-prime crystalline element includes high salinity waste water MVR crystallizer, high salinity waste water MVR crystallization heat exchanger, high salinity waste water MVR multistage centrifugal compressor, high salinity waste water MVR secondary crystallization device, high salinity waste water MVR condenser, high salinity waste water MVR secondary crystallization vacuum pump, secondary crystallization salt segregation apparatus, secondary crystallization thickener, secondary crystallization salt slurry circulating pump, crystal salt segregation apparatus, crystallization thickener, crystal salt slurry circulating pump and burns purification dissolving salt water-circulating pump；High salinity waste water MVR crystallization heat exchanger and high salinity waste water MVR secondary crystallization heat exchanger are graphite heat exchanger, high salinity waste water MVR crystallizer and high salinity waste water MVR secondary crystallization device and are fiberglass crystallizer；nullThe liquid outlet burning purification furnace is connected to the inlet of high salinity waste water MVR crystallization heat exchanger by burning purification dissolving salt water-circulating pump pipeline，The liquid outlet of high salinity waste water MVR crystallization heat exchanger is connected to the inlet of high salinity waste water MVR crystallizer by pipeline，The indirect steam outlet of high salinity waste water MVR crystallizer is connected to the air intake of high salinity waste water MVR multistage centrifugal compressor by pipeline，The venthole of high salinity waste water MVR multistage centrifugal compressor is connected to the air intake of high salinity waste water MVR crystallization heat exchanger by pipeline，The liquid outlet of high salinity waste water MVR crystallizer is starched circulating pump pipeline by crystal salt and is connected to the inlet of crystallization thickener，The discharging opening of crystallization thickener is connected to crystal salt segregation apparatus by pipeline，The liquid outlet of crystallization thickener is connected to the inlet of high salinity waste water MVR secondary crystallization device by pipeline，The liquid outlet of high salinity waste water MVR secondary crystallization device is starched circulating pump pipeline by secondary crystallization salt and is connected to the inlet of secondary crystallization thickener，The discharging opening of secondary crystallization thickener is connected to secondary crystallization salt segregation apparatus by pipeline，The liquid outlet of secondary crystallization thickener is connected to the inlet of high salinity waste water MVR crystallization heat exchanger by pipeline，The indirect steam outlet of high salinity waste water MVR secondary crystallization device is connected to the air intake of high salinity waste water MVR secondary crystallization heat exchanger by pipeline，The venthole of MVR secondary crystallization heat exchanger is connected to the air intake of high salinity waste water MVR condenser by pipeline，The venthole of high salinity waste water MVR condenser is connected to high salinity waste water MVR secondary crystallization vacuum pump by pipeline.Adopting above-mentioned sub-prime crystallization processes, evaporation crystallization equipment adopts non-metallic material, and corrosion-resistant fouling performance is good, manufacture material, technological requirement and invest low, safety in operation is good, carnallite sub-prime crystallization recycling, can reduce the harm to environment and harmless treatment expense.
For current industrial wastewater system empty network remote monitoring and diagnosis and fault pre-alarming measure, the early warning of fault is safeguarded and judges that maintenance is difficult to problem accurately and timely, as the scheme that limits further of the present invention, native system also includes automatic control and Internet of Things remote monitoring diagnostic administrative unit；Automatic control and Internet of Things remote monitoring diagnostic administrative unit include automatic control cabinet, teletransmission thermometer, distance-transmission pressure gauge, chromacoder and remote monitoring terminal；Teletransmission thermometer is arranged on the inlet pipeline of Low-salinity waste water MVR vapor seperator, and distance-transmission pressure gauge is arranged on high salinity waste water MVR vapor seperator；Remote monitoring terminal is remote management center computer or mobile monitoring terminal；Ultrafiltration apparatus, reverse osmosis unit, Low-salinity waste water MVR single-stage radial compressor, high salinity waste water MVR two stage centrifugal compressor, high salinity waste water MVR multistage centrifugal compressor, elevator pump, reverse osmosis concentrated water-circulating pump, high salinity waste water MVR secondary crystallization vacuum pump, secondary crystallization salt slurry circulating pump, crystal salt slurry circulating pump, burn and purify dissolving salt water-circulating pump, high salinity waste water MVR concentrated solution circulating pump, Low-salinity waste water MVR concentrated solution circulating pump, teletransmission thermometer and distance-transmission pressure gauge all electrically connect with automatic control cabinet, chromacoder is transmitted through the network to remote monitoring terminal after the parameter of teletransmission thermometer and distance-transmission pressure gauge is carried out signal conversion so that remote monitoring diagnostic manages.Adopting Internet of Things remote monitoring diagnostic management technique, be conducive to the long-range operation monitoring of system, the early warning of fault is safeguarded and judges maintenance.
The beneficial effects of the present invention is: (1) native system adopts single materialization group technology to realize resource and the zero-emission of industrial wastewater, it is to avoid after materialized pretreatment, biochemical plus depth processes that the long flow path of group technology, energy consumption and processing cost are high, effect is unstable, is difficult to the defect that reaches abundant resource and real zero-emission；(2) adopting the materialized pretreatment technique of native system, can improve treatment effect, reduction investment and operating cost provides condition for subsequent treatment process；(3) adopt the recycling treatment process of native system, the valuable resource in recoverable waste water, reduce processing cost, provide condition for subsequent treatment process；(4) adopt the membrance concentration technique of native system when Low-salinity, investment and operating cost are low, and contamination resistance is strong, stable, can reduce the subsequent treatment process water yield and investment；(5) adopting the MVR evaporating and concentrating process of native system, the corrosion-resistant fouling performance of equipment is good, manufactures material and technological requirement is low, safety in operation is good, investment and operation energy consumption are low, can create favorable conditions for subsequent treatment process, reduce the subsequent treatment process water yield and investment；(6) adopting the sub-prime crystallization processes of native system, the corrosion-resistant fouling performance of equipment is good, manufactures material, technological requirement and invests low, safety in operation is good, and COD decomposes by burning exhaustive oxidation, without influence on the purity of the crystallization of salt and crystal salt, be conducive to the recycling of salt, reduce handling and use；(7) adopting the Internet of Things remote monitoring diagnostic management technique of native system, the early warning of fault is safeguarded and judges that maintenance is prone to accomplish accurately and timely.
Accompanying drawing explanation
Fig. 1 is the system structure schematic diagram of the present invention.
nullIn figure: 1、Degreasing unit，2、Defecator，3、Stripping device，4、Extraction equipment，5、Acid adsorbent equipment，6、Adsorption of Organic device，7、Ionic adsorption device，8、Advanced oxidation device，9、Ultrafiltration apparatus，10、Reverse osmosis unit，11、Low-salinity waste water MVR vapor seperator，12、Teletransmission thermometer，13、Low-salinity waste water MVR single-stage radial compressor，14、Distance-transmission pressure gauge，15、High salinity waste water MVR vapor seperator，16、High salinity waste water MVR two stage centrifugal compressor，17、Burn purification furnace，18、High salinity waste water MVR crystallizer，19、High salinity waste water MVR heat exchanger，20、High salinity waste water MVR multistage centrifugal compressor，21、High salinity waste water MVR secondary crystallization device，22、High salinity waste water MVR secondary heat exchanger，23、High salinity waste water MVR condenser，24、Elevator pump，25、Automatic control cabinet，26、Remote monitoring terminal，27、Chromacoder，28、Reverse osmosis concentrated water-circulating pump，29、High salinity waste water MVR secondary crystallization vacuum pump，30、Secondary crystallization salt segregation apparatus，31、Secondary crystallization thickener，32、Secondary crystallization salt slurry circulating pump，33、Crystal salt segregation apparatus，34、Crystallization thickener，35、Crystal salt slurry circulating pump，36、Burn and purify dissolving salt water-circulating pump，37、High salinity waste water MVR concentrated solution circulating pump，38、High salinity waste water MVR evaporating heat exchanger，39、Low-salinity waste water MVR concentrated solution circulating pump，40、Low-salinity waste water MVR evaporating heat exchanger.
Detailed description of the invention
nullAs shown in Figure 1，A kind of industrial wastewater recycling and zero discharge system of the present invention，Including degreasing unit 1、Defecator 2、Stripping device 3、Extraction equipment 4、Acid adsorbent equipment 5、Adsorption of Organic device 6、Ionic adsorption device 7、Advanced oxidation device 8、Ultrafiltration apparatus 9、Reverse osmosis unit 10、Low-salinity waste water MVR vapor seperator 11、Teletransmission thermometer 12、Low-salinity waste water MVR single-stage radial compressor 13、Distance-transmission pressure gauge 14、High salinity waste water MVR vapor seperator 15、High salinity waste water MVR two stage centrifugal compressor 16、Burn purification furnace 17、High salinity waste water MVR crystallizer 18、High salinity waste water MVR crystallization heat exchanger 19、High salinity waste water MVR multistage centrifugal compressor 20、High salinity waste water MVR secondary crystallization device 21、High salinity waste water MVR secondary crystallization heat exchanger 22、High salinity waste water MVR condenser 23、Elevator pump 24、Automatic control cabinet 25、Remote monitoring terminal 26、Chromacoder 27、Reverse osmosis concentrated water-circulating pump 28、High salinity waste water MVR secondary crystallization vacuum pump 29、Secondary crystallization salt segregation apparatus 30、Secondary crystallization thickener 31、Secondary crystallization salt slurry circulating pump 32、Crystal salt segregation apparatus 33、Crystallization thickener 34、Crystal salt slurry circulating pump 35、Burn and purify dissolving salt water-circulating pump 36、High salinity waste water MVR concentrated solution circulating pump 37、High salinity waste water MVR evaporating heat exchanger 38、Low-salinity waste water MVR concentrated solution circulating pump 39 and Low-salinity waste water MVR evaporating heat exchanger 40.
nullThe outlet of degreasing unit 1 is connected to the water inlet of defecator 2 by elevator pump 24 pipeline，The outlet of defecator 2 is connected to the water inlet of stripping device 3 by pipeline，Stripping device 3 outlet is connected to the water inlet of extraction equipment 4，The outlet of extraction equipment 4 is connected to sour adsorbent equipment 5 water inlet of recycling treatment unit by pipeline，The outlet of acid adsorbent equipment 5 is connected to the water inlet of Adsorption of Organic device 6 by pipeline，The outlet of Adsorption of Organic device 6 is connected to the water inlet of ionic adsorption device 7 by pipeline，The outlet of ionic adsorption device 7 is connected to the water inlet of advanced oxidation device 8 by pipeline，The outlet of advanced oxidation device 8 is connected to the water inlet of ultrafiltration apparatus 9 by pipeline，The outlet of ultrafiltration apparatus 9 is connected to the water inlet of reverse osmosis unit 10 by pipeline，The dense water out of reverse osmosis unit 10 is connected to the water inlet of high salinity waste water MVR secondary crystallization heat exchanger 22 by reverse osmosis concentrated water-circulating pump 28 pipeline，The outlet of high salinity waste water MVR secondary crystallization heat exchanger 22 is connected to the water inlet of Low-salinity waste water MVR evaporating heat exchanger 40 by pipeline，The outlet of Low-salinity waste water MVR evaporating heat exchanger 40 is connected to the water inlet of Low-salinity waste water MVR vapor seperator 11 by pipeline，Teletransmission thermometer 12 is arranged on the inlet pipeline of Low-salinity waste water MVR vapor seperator 11，The liquid outlet of Low-salinity waste water MVR vapor seperator 11 is connected to the inlet of high salinity waste water MVR evaporating heat exchanger 38 by Low-salinity waste water MVR concentrated solution circulating pump 39 pipeline，The indirect steam outlet of Low-salinity waste water MVR vapor seperator 11 is connected to the air intake of Low-salinity waste water MVR single-stage radial compressor 13 by pipeline，The venthole of Low-salinity waste water MVR single-stage radial compressor 13 is connected to the air intake of Low-salinity waste water MVR evaporating heat exchanger 40 by pipeline，The liquid outlet of high salinity waste water MVR evaporating heat exchanger 38 is connected to the inlet of high salinity waste water MVR vapor seperator 15 by pipeline，The indirect steam outlet of high salinity waste water MVR vapor seperator 15 is connected to the air intake of high salinity waste water MVR two stage centrifugal compressor 16 by pipeline，The venthole of high salinity waste water MVR two stage centrifugal compressor 16 is connected to the air intake of high salinity waste water MVR evaporating heat exchanger 38 by pipeline，The liquid outlet of high salinity waste water MVR vapor seperator 15 is connected to burn the inlet of clean unit 17 by high salinity waste water MVR concentrated solution circulating pump 37 pipeline，Distance-transmission pressure gauge 14 is arranged on high salinity waste water MVR vapor seperator 15，The liquid outlet burning clean unit 17 is connected to the inlet of high salinity waste water MVR crystallization heat exchanger 19 by burning purification dissolving salt water-circulating pump 36 pipeline，The liquid outlet of high salinity waste water MVR crystallization heat exchanger 19 is connected to the inlet of high salinity waste water MVR crystallizer 18 by pipeline，The indirect steam outlet of high salinity waste water MVR crystallizer 18 is connected to the air intake of high salinity waste water MVR multistage centrifugal compressor 20 by pipeline，The venthole of high salinity waste water MVR multistage centrifugal compressor 20 is connected to the air intake of high salinity waste water MVR crystallization heat exchanger 19 by pipeline，The liquid outlet of high salinity waste water MVR crystallizer 18 is starched circulating pump 35 pipeline by crystal salt and is connected to the inlet of crystallization thickener 34，The discharging opening of crystallization thickener 34 is connected to crystal salt segregation apparatus 33 by pipeline，The liquid outlet of crystallization thickener 34 is connected to the inlet of high salinity waste water MVR secondary crystallization device 21 by pipeline，The liquid outlet of high salinity waste water MVR secondary crystallization device 21 is starched circulating pump 32 pipeline by secondary crystallization salt and is connected to the inlet of secondary crystallization thickener 31，The discharging opening of secondary crystallization thickener 31 is connected to secondary crystallization salt segregation apparatus 30 by pipeline，The liquid outlet of secondary crystallization thickener 31 is connected to the inlet of high salinity waste water MVR crystallization heat exchanger 19 by pipeline，The indirect steam outlet of high salinity waste water MVR secondary crystallization device 21 is connected to the air intake of high salinity waste water MVR secondary crystallization heat exchanger 22 by pipeline，The venthole of MVR secondary crystallization heat exchanger 22 is connected to the air intake of high salinity waste water MVR condenser 23 by pipeline，The venthole of high salinity waste water MVR condenser 23 is connected to high salinity waste water MVR secondary crystallization vacuum pump 29 by pipeline；Ultrafiltration apparatus 9, reverse osmosis unit 10, Low-salinity waste water MVR single-stage radial compressor 13, high salinity waste water MVR two stage centrifugal compressor 16, high salinity waste water MVR multistage centrifugal compressor 20, elevator pump 24, reverse osmosis concentrated water-circulating pump 28, high salinity waste water MVR secondary crystallization vacuum pump 29, secondary crystallization salt slurry circulating pump 32, crystal salt slurry circulating pump 35, burn and purify dissolving salt water-circulating pump 36, high salinity waste water MVR concentrated solution circulating pump 37, Low-salinity waste water MVR concentrated solution circulating pump 39, teletransmission thermometer 12 and distance-transmission pressure gauge 14 all electrically connect with automatic control cabinet 25.Chromacoder 27 is transmitted through the network to remote monitoring terminal 26 after the parameter of teletransmission thermometer 12 and distance-transmission pressure gauge 14 is carried out signal conversion so that remote monitoring diagnostic manages.
Wherein, Low-salinity waste water MVR evaporating heat exchanger 40 and high salinity waste water MVR evaporating heat exchanger 38 are doughnut heat exchanger, and Low-salinity waste water MVR vapor seperator 11 and high salinity waste water MVR vapor seperator 15 are fiberglass separator；High salinity waste water MVR crystallization heat exchanger 19 and high salinity waste water MVR secondary crystallization heat exchanger 22 are graphite heat exchanger, high salinity waste water MVR crystallizer 18 and high salinity waste water MVR secondary crystallization device 21 and are fiberglass crystallizer.
Industrial wastewater recycling and zero discharge system of the present invention is operationally, waste water enters degreasing unit 1 after water quality and quantity regulates and removes and can enter defecator 2 through elevator pump 24 after oil slick, dispersed oil and part oil emulsion, remove float and oil emulsion enters stripping device 3 and removes ammonia nitrogen, subsequently into extraction equipment 4 separating phenols material, waste water after above-mentioned process enters entrance Adsorption of Organic device 6 after acid adsorbent equipment 5 removes acidity and removes resourcebility Organic substance, removes valuable metal ions subsequently into ionic adsorption device 7.For the waste water that COD concentration is relatively low, it is introduced into advanced oxidation device 8 and removes COD, reverse osmosis unit 10 initial concentration is entered after ultrafiltration apparatus 9, the water outlet of reverse osmosis unit 10 can reuse, dense water enters Low-salinity waste water MVR vaporising device and concentrates further, effluent reuse is to production line, dense water enters high salinity waste water MVR vaporising device reconcentration, effluent reuse is to production line, dense water containing carnallite enters high salinity waste water MVR crystallizer 18 evaporative crystallization, secondary crystallization device 21 Crystallization Separation another kind salinity is entered after higher temperature isolates one of which salinity, to reach the purpose of carnallite purification recycling.For the waste water that COD concentration is higher, Low-salinity waste water MVR vaporising device and high salinity waste water MVR vaporising device concentration can be directly entered, dense water enters and burns clean unit 17 burning removal COD, remaining carnallite enters high salinity waste water MVR crystallizer 18 evaporative crystallization after dissolving, secondary crystallization device 21 Crystallization Separation another kind salinity is entered after higher temperature isolates one of which salinity, to reach the purpose of carnallite purification recycling, substitute the biochemical plus depth being difficult to stable operation and process technique.
nullAutomatic control cabinet 25 receives teletransmission thermometer 12 and the parameter signal of distance-transmission pressure gauge 14，And to ultrafiltration apparatus 9、Reverse osmosis unit 10、Low-salinity waste water MVR single-stage radial compressor 13、High salinity waste water MVR two stage centrifugal compressor 16、High salinity waste water MVR multistage centrifugal compressor 20、Elevator pump 24、Reverse osmosis concentrated water-circulating pump 28、High salinity waste water MVR secondary crystallization vacuum pump 29、Secondary crystallization salt slurry circulating pump 32、High salinity waste water MVR crystallization vacuum pump 33、Crystal salt slurry circulating pump 36、Burn and purify dissolving salt water-circulating pump 37、The operation of high salinity waste water MVR concentrated solution circulating pump 38 and Low-salinity waste water MVR concentrated solution circulating pump 39 automatically controls，Coordinate each equipment work well，Chromacoder 26 is to teletransmission thermometer 12、The parameter of distance-transmission pressure gauge 14 is transmitted through the network to remote monitoring terminal 27 after carrying out signal conversion so that remote monitoring diagnostic manages.
Claims (7)
1. an industrial wastewater recycling and zero discharge system, it is characterised in that: include pretreatment unit；Pretreatment unit includes degreasing unit (1), elevator pump (24), defecator (2), stripping device (3) and extraction equipment (4)；The outlet of degreasing unit (1) is connected to the water inlet of defecator (2) by elevator pump (24) pipeline, the outlet of defecator (2) is connected to the water inlet of stripping device (3) by pipeline, and stripping device (3) outlet is connected to the water inlet of extraction equipment (4).
2. a kind of industrial wastewater recycling and zero discharge system according to claim 1, it is characterised in that: also include recycling treatment unit；Recycling treatment unit includes acid adsorbent equipment (5), Adsorption of Organic device (6) and ionic adsorption device (7)；The outlet of extraction equipment (4) is connected to the water inlet of acid adsorbent equipment (5) by pipeline, the outlet of acid adsorbent equipment (5) is connected to the water inlet of Adsorption of Organic device (6) by pipeline, and the outlet of Adsorption of Organic device (6) is connected to the water inlet of ionic adsorption device (7) by pipeline.
3. a kind of industrial wastewater recycling and zero discharge system according to claim 2, it is characterised in that: also include membrance concentration unit；Membrance concentration unit includes advanced oxidation device (8), ultrafiltration apparatus (9) and reverse osmosis unit (10)；The outlet of ionic adsorption device (7) is connected to the water inlet of advanced oxidation device (8) by pipeline, the outlet of advanced oxidation device (8) is connected to the water inlet of ultrafiltration apparatus (9) by pipeline, and the outlet of ultrafiltration apparatus (9) is connected to the water inlet of reverse osmosis unit (10) by pipeline.
4. a kind of industrial wastewater recycling and zero discharge system according to claim 3, it is characterised in that: also include MVR evaporation and concentration unit；MVR evaporation and concentration unit includes Low-salinity waste water MVR vaporising device, high salinity waste water MVR vaporising device, Low-salinity waste water MVR concentrated solution circulating pump (39) and high salinity waste water MVR secondary crystallization heat exchanger (22)；Low-salinity waste water MVR vaporising device includes Low-salinity waste water MVR vapor seperator (11), Low-salinity waste water MVR single-stage radial compressor (13) and Low-salinity waste water MVR evaporating heat exchanger (40)；High salinity waste water MVR vaporising device includes high salinity waste water MVR vapor seperator (15), high salinity waste water MVR two stage centrifugal compressor (16) and high salinity waste water MVR evaporating heat exchanger (38)；Low-salinity waste water MVR evaporating heat exchanger (40) and high salinity waste water MVR evaporating heat exchanger (38) are doughnut heat exchanger, Low-salinity waste water MVR vapor seperator (11) and high salinity waste water MVR vapor seperator (15) and are fiberglass separator；nullThe dense water out of reverse osmosis unit (10) is connected to the water inlet of high salinity waste water MVR secondary crystallization heat exchanger (22) by reverse osmosis concentrated water-circulating pump (28) pipeline，The outlet of high salinity waste water MVR secondary crystallization heat exchanger (22) is connected to the water inlet of Low-salinity waste water MVR evaporating heat exchanger (40) by pipeline，The outlet of Low-salinity waste water MVR evaporating heat exchanger (40) is connected to the water inlet of Low-salinity waste water MVR vapor seperator (11) by pipeline，The liquid outlet of Low-salinity waste water MVR vapor seperator (11) is connected to the inlet of high salinity waste water MVR evaporating heat exchanger (38) by Low-salinity waste water MVR concentrated solution circulating pump (39) pipeline，The indirect steam outlet of Low-salinity waste water MVR vapor seperator (11) is connected to the air intake of Low-salinity waste water MVR single-stage radial compressor (13) by pipeline，The venthole of Low-salinity waste water MVR single-stage radial compressor (13) is connected to the air intake of Low-salinity waste water MVR evaporating heat exchanger (40) by pipeline，The liquid outlet of high salinity waste water MVR evaporating heat exchanger (38) is connected to the inlet of high salinity waste water MVR vapor seperator (15) by pipeline，The indirect steam outlet of high salinity waste water MVR vapor seperator (15) is connected to the air intake of high salinity waste water MVR two stage centrifugal compressor (16) by pipeline，The venthole of high salinity waste water MVR two stage centrifugal compressor (16) is connected to the air intake of high salinity waste water MVR evaporating heat exchanger (38) by pipeline.
5. a kind of industrial wastewater recycling and zero discharge system according to claim 4, it is characterised in that: also include burning clean unit；Burn clean unit for burning purification furnace (17)；The liquid outlet of high salinity waste water MVR vapor seperator (15) is connected to burn the inlet of purification furnace (17) by high salinity waste water MVR concentrated solution circulating pump (37) pipeline.
6. a kind of industrial wastewater recycling and zero discharge system according to claim 5, it is characterised in that: also include MVR sub-prime crystalline element；MVR sub-prime crystalline element includes high salinity waste water MVR crystallizer (18), high salinity waste water MVR crystallization heat exchanger (19), high salinity waste water MVR multistage centrifugal compressor (20), high salinity waste water MVR secondary crystallization device (21), high salinity waste water MVR condenser (23), high salinity waste water MVR secondary crystallization vacuum pump (29), secondary crystallization salt segregation apparatus (30), secondary crystallization thickener (31), secondary crystallization salt slurry circulating pump (32), crystal salt segregation apparatus (33), crystallization thickener (34), crystal salt slurry circulating pump (35) and burning purify dissolving salt water-circulating pump (36)；High salinity waste water MVR crystallization heat exchanger (19) and high salinity waste water MVR secondary crystallization heat exchanger (22) are graphite heat exchanger, high salinity waste water MVR crystallizer (18) and high salinity waste water MVR secondary crystallization device (21) and are fiberglass crystallizer；nullThe liquid outlet burning purification furnace (17) is connected to the inlet of high salinity waste water MVR crystallization heat exchanger (19) by burning purification dissolving salt water-circulating pump (36) pipeline，The liquid outlet of high salinity waste water MVR crystallization heat exchanger (19) is connected to the inlet of high salinity waste water MVR crystallizer (18) by pipeline，The indirect steam outlet of high salinity waste water MVR crystallizer (18) is connected to the air intake of high salinity waste water MVR multistage centrifugal compressor (20) by pipeline，The venthole of high salinity waste water MVR multistage centrifugal compressor (20) is connected to the air intake of high salinity waste water MVR crystallization heat exchanger (19) by pipeline，The liquid outlet of high salinity waste water MVR crystallizer (18) is starched circulating pump (35) pipeline by crystal salt and is connected to the inlet of crystallization thickener (34)，The discharging opening of crystallization thickener (34) is connected to crystal salt segregation apparatus (33) by pipeline，The liquid outlet of crystallization thickener (34) is connected to the inlet of high salinity waste water MVR secondary crystallization device (21) by pipeline，The liquid outlet of high salinity waste water MVR secondary crystallization device (21) is starched circulating pump (32) pipeline by secondary crystallization salt and is connected to the inlet of secondary crystallization thickener (31)，The discharging opening of secondary crystallization thickener (31) is connected to secondary crystallization salt segregation apparatus (30) by pipeline，The liquid outlet of secondary crystallization thickener (31) is connected to the inlet of high salinity waste water MVR crystallization heat exchanger (19) by pipeline，The indirect steam outlet of high salinity waste water MVR secondary crystallization device (21) is connected to the air intake of high salinity waste water MVR secondary crystallization heat exchanger (22) by pipeline，The venthole of MVR secondary crystallization heat exchanger (22) is connected to the air intake of high salinity waste water MVR condenser (23) by pipeline，The venthole of high salinity waste water MVR condenser (23) is connected to high salinity waste water MVR secondary crystallization vacuum pump (29) by pipeline.
7. a kind of industrial wastewater recycling and zero discharge system according to claim 6, it is characterised in that: also include automatic control and Internet of Things remote monitoring diagnostic administrative unit；Automatic control and Internet of Things remote monitoring diagnostic administrative unit include automatic control cabinet (25), teletransmission thermometer (12), distance-transmission pressure gauge (14), chromacoder (27) and remote monitoring terminal (26)；Teletransmission thermometer (12) is arranged on the inlet pipeline of Low-salinity waste water MVR vapor seperator (11), and distance-transmission pressure gauge (14) is arranged on high salinity waste water MVR vapor seperator (15)；Remote monitoring terminal (26) is remote management center computer or mobile monitoring terminal；nullUltrafiltration apparatus (9)、Reverse osmosis unit (10)、Low-salinity waste water MVR single-stage radial compressor (13)、High salinity waste water MVR two stage centrifugal compressor (16)、High salinity waste water MVR multistage centrifugal compressor (20)、Elevator pump (24)、Reverse osmosis concentrated water-circulating pump (28)、High salinity waste water MVR secondary crystallization vacuum pump (29)、Secondary crystallization salt slurry circulating pump (32)、Crystal salt slurry circulating pump (35)、Burn and purify dissolving salt water-circulating pump (36)、High salinity waste water MVR concentrated solution circulating pump (37)、Low-salinity waste water MVR concentrated solution circulating pump (39)、Teletransmission thermometer (12) and distance-transmission pressure gauge (14) all electrically connect with automatic control cabinet (25)，Chromacoder (27) is transmitted through the network to remote monitoring terminal (26) after the parameter of teletransmission thermometer (12) and distance-transmission pressure gauge (14) is carried out signal conversion.
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