CN109179832A - A kind of public environmentally friendly factory of full resource utilization of industrial high-salt wastewater based on thermal method - Google Patents
A kind of public environmentally friendly factory of full resource utilization of industrial high-salt wastewater based on thermal method Download PDFInfo
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- CN109179832A CN109179832A CN201811039560.2A CN201811039560A CN109179832A CN 109179832 A CN109179832 A CN 109179832A CN 201811039560 A CN201811039560 A CN 201811039560A CN 109179832 A CN109179832 A CN 109179832A
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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
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D3/00—Halides of sodium, potassium or alkali metals in general
- C01D3/04—Chlorides
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/46—Sulfates
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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
- C02F1/043—Details
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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
- C02F1/048—Purification of waste water by evaporation
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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
- C02F1/16—Treatment of water, waste water, or sewage by heating by distillation or evaporation using waste heat from other processes
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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
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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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
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
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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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- 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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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/10—Energy recovery
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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
- Y02A20/131—Reverse-osmosis
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
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Abstract
A kind of public environmentally friendly factory of full resource utilization of industrial high-salt wastewater based on thermal method, belongs to industrial energy saving and environmental protection technical field.Total system of the present invention includes four big processing FMEAs, that is thermal method waste water control and recycling plate, demineralized water plate, boiler and recuperation of heat plate, steam turbine power generation and waste heat recycle plate, driving heat source using a variety of residual heat resources as sewage evaporation and crystallization apparatus, steam power plant and external public sewage are realized and be concentrated by evaporation decrement, thermal method evaporation and high-purity divide salt, wherein for heating oxygen-eliminating device, the relatively high-grade steam or high-temperature water or fume high-temperature section sensible heat etc. of process water and heat supply network return water etc. are used for waste heat evaporative crystallization, purification and mother liquor desiccation, sewage side secondary steam residual heat recovery is preheated in heating target；Turbine condenser waste heat and fume afterheat are then used for negative pressure waste heat evaporation and concentration, and the clear water of recycling can be used for the moisturizing of demineralized water water source, and sodium chloride is used as the raw material of chlor-alkali plant etc., and calcium sulfate etc. can make construction material.
Description
Technical field
The public environmentally friendly factory of the full resource utilization of industrial high-salt wastewater that the present invention relates to a kind of based on thermal method, belongs to industry
Energy conservation and environmental protection technical field.
Background technique
Most of industries including steam power plant or heating plant are required to discharge large amount of sewage at present, particularly industry is high
Salt waste water seriously pollutes environment, especially gets worse to the pollution of underground, groundwater resources etc. and extremely difficult recovery.Though
Social cry, policy expectancy and the enterprise that so generally implementation sewage zero-discharge existing at present and water resource recycle attempt, but mesh
Preceding conventional processing method, the technology path including pretreatment+film process+MVR evaporation or multiple-effect evaporation, existing greatest problem
Be: initial cost is huge (about 30~1,000,000 yuan of the ton sewage investment demand of usually equivalent 1t/h at present), operation energy consumption and O&M
Expense is excessively high (usually equivalent 30~90 yuan of ton sewage treatment expense at present, be rarely lower than 20 yuan/t person)；Meanwhile realizing sewage
The solids such as a large amount of abraum salts being discharged during zero-emission are normally used as dangerous waste and treat, and provided by law is needed to carry out at dangerous waste
It sets, including disposing joint disposal cost accounting about 4000~8000 yuan/t take, including the environmental protection expenses of taxation etc..Therefore, whether
Sewage zero-discharge or abraum salt disposition etc., the comprehensive method of investment and O&M cost expense belong to high, come into effect such as the whole society and
Strict implement, then common viewpoint is in industry: the more industry and enterprise of most of sewage discharges will be forced to stop production, go bankrupt.
Therefore, many similar industry and enterprises, face an awkwardization proposition in Policy Choice --- be to want " Kingsoft silver
" blue montains and green waters " is still wanted on mountain "；How to accomplish that fish and bear's paw get both, enterprise and society are benefited.A kind of technology of possible establishment
Approach is: using the waste heat of the industrial enterprises such as steam power plant, instead of necessarily consuming in sewage zero-discharge and abraum salt process for reclaiming process
As driving heat source its artificial energy source consuming and its energy operating cost can be then greatly reduced, together in a large amount of high-grade energies taken
When can shorten the process of Comprehensive Treatment For Waste Water and its recycling, and by the effectively optimizing design of exchange thermal process, improve heat exchange
Intensity reduces heat exchange material consumption and significantly reduces overall initial cost.According to above-mentioned technology solve thought, by taking steam power plant as an example into
Row technology path is analyzed as follows.
The boiler exhaust gas of steam power plant or heating plant is divided into higher temperatures section (the 1%~2% of equivalent steam power plant's integrated heat efficiency)
With low-temperature range (the 9%~12% of equivalent steam power plant's integrated heat efficiency), it can provide a large amount of low grade residual heats and be used to carry out sewage
Evaporation and concentration and minimizing；The mountable low vacuum circulating water heating mode of exhaust steam in steam turbine condenser provides a large amount of low-grade remaining
Heat (the 20%~60% of equivalent steam power plant's integrated heat efficiency) is used to carry out sewage evaporation concentration and minimizing；The water inlet of oxygen-eliminating device adds
Hot steam can by energy cascade utilization mode, provide largely compared with high-grade waste heat (the 5% of equivalent steam power plant's integrated heat efficiency~
9%) it is used to carry out sewage evaporation concentration and minimizing；The heat supply network return water heating steam of winter central heating can pass through energy step
Land use systems provide and largely are used to carry out sewage evaporation compared with high-grade waste heat (the 10%~60% of equivalent steam power plant's integrated heat efficiency)
Concentration and minimizing；If there is other process waters to need to heat, water inlet heating steam can be mentioned by energy cascade utilization mode
For largely being used to carry out sewage evaporation concentration and decrement compared with high-grade waste heat (the 10%~60% of equivalent steam power plant's integrated heat efficiency)
Change.By utilizing above-mentioned waste-heat and step energy resource Land use systems, the heat of sewage evaporation and crystallization usually can be utilized for
Up to the 20%~80% of calorific efficiency of heat power station, i.e. the comprehensive efficiency of heating- utilization of full factory of steam power plant is even up to 110%~170%.And it adopts
When carrying out sewage zero-discharge with above-mentioned UTILIZATION OF VESIDUAL HEAT IN mode, for increment energy consumption in addition to the power consumption that cuts out the pump, increment thermal energy consumption is several
It can ignore, so that the energy expenditure of its sewage zero-discharge is mainly the water pump operation electricity charge etc. in process.
Such as be averaged 3~4kWh calculating by ton water process power consumption, as being averaged based on 0.4 yuan/kWh by steam power plant's rate for incorporation into the power network
Calculate, ton sewage treatment energy cost only have about 1.2~1.6 yuan/t, such as by industrial enterprise big customer electricity price estimation about 2.0~
3.0 yuan/t；Then the integrated operation cost estimation comprising other O&M expenses is about 3~6 yuan/t；Then and at present using conventional method
The ton integrated wastewater cost for carrying out sewage zero-discharge is compared, in the decline of an order of magnitude.This is solves steam power plant and more voluminous
Large amount of sewage comprehensive treatment problem caused by industry and great social environmental issue provide a kind of technical, economically equal
Feasible technical foundation.
Summary of the invention
The purpose of the present invention and task be, for the sewage largely generated in above-mentioned steam power plant and every profession and trade enterprise, especially
It is that industrial high-salt wastewater carries out sewage zero-discharge, recycling water resource and content resource, using the sewage zero-emission based on thermal method
It puts and resource reclaim technology is evaporated concentration decrement to trade effluent, thermal method evaporation, is divided by a variety of waste heat driving methods
Salt crystallization and purification, and chloride ion therein, suspended matter, high valence ion and heavy metal etc. are constantly separated from circulation, it realizes
Water resource and the recycling for including material resource, wherein the water resource recycled can be diverted to the demineralized water water conservancy project of the factories such as steam power plant
The water source moisturizing of skill, hot net water moisturizing etc.；The sodium chloride of the high-purity of recycling is used for the raw material as downstream plants such as chlor-alkali plants,
Calcium sulfate of recycling etc. can make construction material.
Specific descriptions of the invention are: a kind of public environmentally friendly work of full resource utilization of industrial high-salt wastewater based on thermal method
Factory, total system include four big processing FMEAs, i.e. thermal method waste water control and recycling plate A1, demineralized water plate A2, boiler and heat
Auxiliary line facility between recycling plate A3, steam turbine power generation and waste heat recycling plate A4 and plate interiors and plate, it is special
Sign is that the condenser 42 of steam turbine power generation and waste heat recycling plate A4 use low vacuum heat exchange structure, boiler and recuperation of heat plate
Block A3 further includes flue gas contaminated water evaporator 34 outside including boiler body 33 and its conventional auxiliary system and is based on inlet air of boiler water
The residual heat from boiler fume of steam heat-carrying circulation recycles the more medium filter of component 30, thermal method waste water control and recycling plate A1
The outlet of the demineralized water concentrated water P1 of the import and demineralized water plate A2 of 1 demineralized water concentrated water P1 is connected, more medium filter 1 it is cold
But the import of tower sewerage P2 and steam turbine power generation and waste heat recycle going out for the cooling tower sewerage P2 of the cooling tower 44 of plate A4
Mouth is connected, and the outlet of the high concentrated water G9 of suspension of more medium filter 1 is connected with the original water inlet of flocculation sedimentation tank 21, multimedium mistake
The filters pressing water inlet of filter 1 is connected with the filters pressing water out of the first filter press 20, the processing water out of more medium filter 1 and one
The original water inlet of grade reverse osmosis membrane 2 is connected, the outlet of the level-one clear water D5 of first-stage reverse osmosis film 2 and the desalination of demineralized water plate A2
The import of the regeneration raw water D of water reverse osmosis membrane 23 is connected, processing water out and the two-pass reverse osmosis film 3 of first-stage reverse osmosis film 2
Original water inlet be connected, the regeneration raw water D of the outlet and demineralized water reverse osmosis membrane 23 of the second level clear water D4 of two-pass reverse osmosis film 3 into
Mouth is connected, and the import of the highly concentrated raw water G of the processing water out and mixed water pretreatment pond 4 of two-pass reverse osmosis film 3 is connected, highly concentrated raw water
The import of G is also respectively at including coming from first-stage reverse osmosis film 2, two-pass reverse osmosis film 3, hyperfiltration/microfiltration film processing unit 6, second
Filter press 15, demineralized water reverse osmosis membrane 23, comes from boiler and recuperation of heat at the source water pretreatment pool 22 from demineralized water plate A2
Highly concentrated drain outlet including the desulfurizing tower 34 of plate A3 communicates, and mixes the outlet and the of the high concentrated water G1 of blowdown in water pretreatment pond 4
The original water inlet of two filter presses 15 is connected, and mixes the processing water out in water pretreatment pond 4 and the original water inlet phase for aoxidizing calcification pond 5
Even, oxidation calcification pond 5 be provided with the import of oxidant O, the feeding port of milk of lime and composite drug F, calcium sulfate K3 discharge port,
Discharge port, the processing water out of other solid salt K5, aoxidizes the processing water out and hyperfiltration/microfiltration film processing unit 6 in calcification pond 5
Original water inlet be connected, hyperfiltration/microfiltration film processing unit 6 is provided with the feed inlet of lye CH, the outlet of regenerated sewage G3 and place
Water out is managed, the processing water out of hyperfiltration/microfiltration film processing unit 6 divides the original water inlet of salt device 7 to be connected with nanofiltration membrane, nanofiltration
Film divides the outlet of the high concentrated water H of salt device 7 and the import of the high concentrated water H in oxidation calcification pond 5 to be connected, and nanofiltration membrane divides salt device 7
Treated water outlet is connected with the original water inlet of waste heat crystallizing evaporator 8, waste heat crystallizing evaporator 8 be arranged have surplus heat heat source J1 into
Mouthful, the outlet of waste heat heat source water outlet J2, industrial grade sodium chloride K1 salt outlet, sewage secondary steam L outlet and mother liquor G4
Outlet, wherein the high temperature side of the outlet of the sewage secondary steam L of waste heat crystallizing evaporator 8 and waste-heat recoverer component 10+11 into
Mouthful be connected, the regeneration raw water D of the high temperature side of waste-heat recoverer component 10+11 condensation water out and demineralized water reverse osmosis membrane 23 into
Mouth communicates, and the processing water out of hyperfiltration/microfiltration film processing unit 6 is also connected with the original water inlet of negative pressure residual evaporator 14, bears
Discard hot vaporizer 14 is provided with the import of the first low temperature exhaust heat heat source R1, the outlet of the first low temperature exhaust heat heat source water outlet R2, the
The import of two low temperature exhaust heat heat source R3, the outlet of the second low temperature exhaust heat heat source water outlet R4, the outlet of low pressure sewage secondary steam Ld
Outlet with the outlet of low pressure mother liquor G5, mesolow mother liquor G5 is connected with the original water inlet of mother liquor desiccation residual evaporator 13,
The import for the heat source J1 that has surplus heat, the outlet of waste heat heat source water outlet J2, mother liquor desiccation solid waste is arranged in mother liquor desiccation residual evaporator 13
The discharge port of K6, the outlet of the low pressure sewage secondary steam Ld of negative pressure residual evaporator 14 and the steaming of circulating cooling water- to-water heat exchanger 12
Vapor inlet is connected, and the import of the cooling water inlet N1 of circulating cooling water- to-water heat exchanger 12 is connected with the cooling water outlet of cooling tower 44, follows
The outlet of the cooling water outlet N2 of ring cooling water heat exchanger 12 is connected with the cooling water inlet of cooling tower 44, circulating cooling water- to-water heat exchanger
The import of the regeneration raw water D of the outlet and demineralized water reverse osmosis membrane 23 of 12 low pressure clear water D3 communicates.
The feed inlet phase of the salt outlet of the industrial grade sodium chloride K1 of waste heat crystallizing evaporator 8 and crystal salt purification device 9 again
Logical, the have surplus heat import of heat source J1, the outlet of coagulation hydroenergy backwater J2, high-purity technical grade chlorine is arranged in purification device 9 to crystal salt again
Change the discharge port of sodium K4.
The import of the high-temperature smoke discharging Y of the flue gas contaminated water evaporator 37 of boiler and recuperation of heat plate A3 with come from boiler or dedusting
The flue of the high-temperature smoke discharging Y of device is connected, the outlet of the medium temperature flue gas Y0 of flue gas contaminated water evaporator 37 and the desulfurization of desulfurizing tower 34 into
The import of cigarette Y1 is connected, the spray import of mother liquor G4 and the mother liquor G4 of waste heat crystallizing evaporator 8 of flue gas contaminated water evaporator 37
The outlet of the outlet low pressure mother liquor G5 that communicates perhaps negative pressure residual evaporator 14 communicate or other high concentration stain diseases come
The outlet in source communicates, and flue gas contaminated water evaporator 37 is additionally provided with the discharge port of flue gas desiccation solid waste K7.
It includes residual heat from boiler fume compound spray tower 31, the compound spray of residual heat from boiler fume that residual heat from boiler fume, which recycles component 30,
The gas inlet of leaching tower 31 is communicated with the outlet of the desulfurization fume Y1 of desulfurizing tower 34, the cigarette of residual heat from boiler fume compound spray tower 31
The outlet of gas residual heat high-temperature water Rg1 is communicated with the import of the first low temperature exhaust heat heat source R1 of negative pressure residual evaporator 14, boiler smoke
The outlet phase of the import of the fume afterheat water at low temperature Rh2 of gas waste heat compound spray tower 31 and the first low temperature exhaust heat heat source water outlet R2
It is logical.
Steam turbine power generation and waste heat recycling plate A4 condenser 42 recirculated water water outlet Rg3 outlet in addition to cooling tower
44 cooling water inlet is also communicated with the import of the second low temperature exhaust heat heat source R3 of negative pressure residual evaporator 14, condensing outside being connected
The import of the recirculated water water inlet Rh4 of device 42 is also hot with the second low temperature exhaust heat other than being connected with the cooling water outlet of cooling tower 44
The outlet of source water outlet R4 communicates.
Steam turbine power generation and waste heat recycling plate A4 steam turbine 43 steam extraction outlet in addition to feed-water heater component 40
Air intake, oxygen-eliminating device 41 air intake be connected with heating or the high temperature side-entrance of the hot-water heater 46 of technique heat user it is outer,
It is also communicated with the import of the waste heat heat source J1 of waste heat crystallizing evaporator 8, or the waste heat heat source J1 with crystal salt purification device 9 again
Import communicate, or communicated with the import of the waste heat heat source J1 of mother liquor desiccation residual evaporator 13, the condensed water of oxygen-eliminating device 41
Import other than being communicated with the outlet of the coagulation hydroenergy backwater J2 of the condensation water out of condenser 42, hot-water heater 46, also with come
From the coagulation hydroenergy backwater J2 of waste heat crystallizing evaporator 8 or crystal salt purification device 9, mother liquor desiccation residual evaporator 13 again
Outlet communicates, also in waste-heat recoverer component 10+11 oxygen-eliminating device and process water heater heated by waste heat 11 be heated water outlet M2
Outlet communicate, oxygen-eliminating device and process water heater heated by waste heat 11 are heated into the import of water M1 and the condensed water of condenser 42
Mouth communicates.
Waste-heat recoverer component 10+11 includes heat supply network return water heater heated by waste heat 10, the heat of heat supply network return water heater heated by waste heat 10
The import of net return water water inlet water M3 is communicated with the water pipe that comes of the low-temperature return water Rh of hot-water heater 46, heat supply network return water waste-heat
The heat supply network return water water inlet of device 10 goes to the outlet of water M4 and the import of the low-temperature return water Rh of hot-water heater 46 to communicate, more than heat supply network return water
The high temperature side-entrance of hot heater 10 is connected with the outlet of the sewage secondary steam L of waste heat crystallizing evaporator 8, heat supply network return water waste heat
The high temperature side second of heater 10 drains the outlet of D2 and the draining of high temperature side first of oxygen-eliminating device and process water heater heated by waste heat 11
After the outlet of D1 is connected, communicated with the import of the regeneration raw water D of demineralized water reverse osmosis membrane 23.
The more medium filter 1 of thermal method waste water control and recycling plate A1 are additionally provided with the import of external concentrated water Pw,
It is communicated with the inlet pipeline of the low concentration sewage source in the public wastewater influent except steam power plant, thermal method waste water control and money
The mixed water pretreatment pond 4 of source plate A1 is additionally provided with the import of external highly concentrated raw water Gw, with the public dirt except steam power plant
The inlet pipeline of higher concentration sewage source in water water inlet communicates, and the crystal salt of thermal method waste water control and recycling plate A1 are again
Purification device 9 is additionally provided with the feed inlet of the public external primary industry salt Kw except steam power plant.
The present invention solve many industry and enterprises such as steam power plant being widely present at present generated in production procedure it is a large amount of
The inexpensive integrated treatment of sewage, particularly high-salt wastewater and its problem of recycling, had both saved moisturizing by clear water reuse
Demand, and recycled the resources such as high-purity technical grade sodium chloride, calcium sulfate, at the same substantially save artificial energy source consuming and its
Operating cost.Wherein compared with conventional sewage zero-emission and dangerous waste salt purification recovery technology, 90% or so artificial energy source can be reduced
Operating cost can be reduced an order of magnitude while energy consumption is greatly reduced by demand, become most of steam power plants and related industry
The brand new technical mode of user afford to build, affords to use comprehensive waste water control and resource utilization.The present invention can with steam power plant and
Centered on its dynamical system technique and thermal process, realize from high pollution maximum discharge mode to process spent water zero-emission, water resource
Significantly reduced clean manufacturing type greenization power factory mode transformation is consumed, especially can be used as industrial park or even the whole society
The basic technology process of integrated big environmentally friendly system undertakes public environmentally friendly factory and the comprehensive treatment of public Comprehensive Treatment For Waste Water
Center has both technology, economic value and environmental protection, social effect.
This method significantly reduces sewage zero-discharge and realizes the operation energy consumption and expense of high efficient resourcing, is particularly suitable for
The occasion of steam power plant or heating plant and chloralkali process combined operating more can further improve the supporting industries completeness of comprehensive treatment
And techno-economic effect.Meanwhile technical method and its device and engineering construction scheme designed by the present invention, it can also further push away
In the industry and enterprise Comprehensive Treatment For Waste Water extensively discharged to the similar high energy consumption of other industries, high waste heat, or even it is generalized to other
In correlation danger waste treatment processes, there are more common industry application value and economic results in society.
Detailed description of the invention
Fig. 1 is system schematic of the invention.
Each unit number and title are as follows in Fig. 1.More medium filter 1, first-stage reverse osmosis film 2, two-pass reverse osmosis film 3,
Mixed water pretreatment pond 4, oxidation calcification pond 5, hyperfiltration/microfiltration film processing unit 6, nanofiltration membrane divide salt device 7, waste heat crystallizing evaporator
8, crystal salt purification device 9, heat supply network return water heater heated by waste heat 10, oxygen-eliminating device and process water heater heated by waste heat 11, circulating cooling again
Water- to-water heat exchanger 12, mother liquor desiccation residual evaporator 13, negative pressure residual evaporator 14, the second filter press 15, the first filter press 20, wadding
Solidifying sedimentation basin 21, source water pretreatment pool 22, demineralized water reverse osmosis membrane 23, demineralized water advanced treatment apparatus 24, more than boiler smoke
Recuperation of heat component 30, residual heat from boiler fume compound spray tower 31, pressure fan 32, boiler body 33, desulfurizing tower 34, smoke duster
35, air-introduced machine 36, flue gas contaminated water evaporator 37, feed-water heater component 40, oxygen-eliminating device 41, condenser 42, cooling tower 44, power generation
Machine 45, hot-water heater 46, thermal method waste water control and recycling plate A1, demineralized water plate A2, boiler and recuperation of heat plate A3,
Steam turbine power generation and waste heat recycling plate A4, desulfurated circulating water B, lye CH, regeneration raw water D, high temperature side first drain D1, height
Warm side second drain D2, low pressure clear water D3, second level clear water D4, level-one clear water D5, milk of lime and composite drug F, highly concentrated raw water G,
The high concentrated water G1 of blowdown, desulfurization sewerage G2, regenerated sewage G3, mother liquor G4, low pressure mother liquor G5, level-one film regenerated sewage G6, second level
Film regenerated sewage G7, demineralized water regenerated sewage G8, the high concentrated water G9 of suspending, external highly concentrated raw water Gw, high concentrated water H, waste heat heat source J1,
Waste heat heat source be discharged J2, industrial grade sodium chloride K1, filter press outlet sludge K2, calcium sulfate K3, high-purity technical grade sodium chloride K4,
Other solid salt K5, mother liquor desiccation solid waste K6, flue gas desiccation solid waste K7, public external primary industry salt Kw, sewage secondary steam
L, low pressure sewage secondary steam Ld, be heated into water M1, be heated water outlet M2, heat supply network return water water inlet water M3, heat supply network return water into
Water removes water M4, cooling water inlet N1, cooling water outlet N2, oxidant O, demineralized water concentrated water P1, cooling tower sewerage P2, external concentrated water
Pw, the first low temperature exhaust heat heat source R1, the first low temperature exhaust heat heat source are discharged R2, the second low temperature exhaust heat heat source R3, the second low temperature exhaust heat
Heat source is discharged R4, heat supply network high temperature water supply Rh, low-temperature return water Rh, fume afterheat high-temperature water Rg1, fume afterheat water at low temperature Rh2, circulation
Water is discharged Rg3, recirculated water water inlet Rh4, source water S, high-temperature smoke discharging Y, medium temperature flue gas Y0, desulfurization into cigarette Y1, desulfurization fume exhaust Y2, low
Temperature smoke evacuation Y3.
Specific embodiment
Fig. 1 is system schematic of the invention.
Specific embodiments of the present invention are as follows: a kind of public environmental protection of the full resource utilization of industrial high-salt wastewater based on thermal method
Factory, total system include four big processing FMEAs, i.e., thermal method waste water control and recycling plate A1, demineralized water plate A2, boiler and
Auxiliary line facility between recuperation of heat plate A3, steam turbine power generation and waste heat recycling plate A4 and plate interiors and plate,
It is characterized in that, the condenser 42 of steam turbine power generation and waste heat recycling plate A4 use low vacuum heat exchange structure, boiler and recuperation of heat
Plate A3 further includes flue gas contaminated water evaporator 34 outside including boiler body 33 and its conventional auxiliary system and is based on inlet air of boiler
The residual heat from boiler fume of vapor heat-carrying circulation recycles the multi-medium filtering of component 30, thermal method waste water control and recycling plate A1
The outlet of the demineralized water concentrated water P1 of the import and demineralized water plate A2 of the demineralized water concentrated water P1 of device 1 is connected, more medium filter 1
The cooling tower sewerage P2's of the cooling tower 44 of the import of cooling tower sewerage P2 and steam turbine power generation and waste heat recycling plate A4
Outlet is connected, and the outlet of the high concentrated water G9 of suspension of more medium filter 1 is connected with the original water inlet of flocculation sedimentation tank 21, multimedium
The filters pressing water inlet of filter 1 is connected with the filters pressing water out of the first filter press 20, the processing water out of more medium filter 1 with
The original water inlet of first-stage reverse osmosis film 2 is connected, the outlet of level-one clear water D5 and the removing for demineralized water plate A2 of first-stage reverse osmosis film 2
The import of the regeneration raw water D of salt water reverse osmosis membrane 23 is connected, the processing water out and two-pass reverse osmosis film 3 of first-stage reverse osmosis film 2
Original water inlet be connected, the regeneration raw water D's of the outlet and demineralized water reverse osmosis membrane 23 of the second level clear water D4 of two-pass reverse osmosis film 3
Import is connected, and the import of the highly concentrated raw water G of the processing water out and mixed water pretreatment pond 4 of two-pass reverse osmosis film 3 is connected, highly concentrated original
The import of water G is also respectively at including from first-stage reverse osmosis film 2, two-pass reverse osmosis film 3, hyperfiltration/microfiltration film processing unit 6, the
Two filter presses 15, demineralized water reverse osmosis membrane 23, come from boiler and heat time at the source water pretreatment pool 22 from demineralized water plate A2
Receive plate A3 desulfurizing tower 34 including highly concentrated drain outlet communicate, mix water pretreatment pond 4 the high concentrated water G1 of blowdown outlet with
The original water inlet of second filter press 15 is connected, and mixes the processing water out in water pretreatment pond 4 and the original water inlet phase for aoxidizing calcification pond 5
Even, oxidation calcification pond 5 be provided with the import of oxidant O, the feeding port of milk of lime and composite drug F, calcium sulfate K3 discharge port,
Discharge port, the processing water out of other solid salt K5, aoxidizes the processing water out and hyperfiltration/microfiltration film processing unit 6 in calcification pond 5
Original water inlet be connected, hyperfiltration/microfiltration film processing unit 6 is provided with the feed inlet of lye CH, the outlet of regenerated sewage G3 and place
Water out is managed, the processing water out of hyperfiltration/microfiltration film processing unit 6 divides the original water inlet of salt device 7 to be connected with nanofiltration membrane, nanofiltration
Film divides the outlet of the high concentrated water H of salt device 7 and the import of the high concentrated water H in oxidation calcification pond 5 to be connected, and nanofiltration membrane divides salt device 7
Treated water outlet is connected with the original water inlet of waste heat crystallizing evaporator 8, waste heat crystallizing evaporator 8 be arranged have surplus heat heat source J1 into
Mouthful, the outlet of waste heat heat source water outlet J2, industrial grade sodium chloride K1 salt outlet, sewage secondary steam L outlet and mother liquor G4
Outlet, wherein the high temperature side of the outlet of the sewage secondary steam L of waste heat crystallizing evaporator 8 and waste-heat recoverer component 10+11 into
Mouthful be connected, the regeneration raw water D of the high temperature side of waste-heat recoverer component 10+11 condensation water out and demineralized water reverse osmosis membrane 23 into
Mouth communicates, and the processing water out of hyperfiltration/microfiltration film processing unit 6 is also connected with the original water inlet of negative pressure residual evaporator 14, bears
Discard hot vaporizer 14 is provided with the import of the first low temperature exhaust heat heat source R1, the outlet of the first low temperature exhaust heat heat source water outlet R2, the
The import of two low temperature exhaust heat heat source R3, the outlet of the second low temperature exhaust heat heat source water outlet R4, the outlet of low pressure sewage secondary steam Ld
Outlet with the outlet of low pressure mother liquor G5, mesolow mother liquor G5 is connected with the original water inlet of mother liquor desiccation residual evaporator 13,
The import for the heat source J1 that has surplus heat, the outlet of waste heat heat source water outlet J2, mother liquor desiccation solid waste is arranged in mother liquor desiccation residual evaporator 13
The discharge port of K6, the outlet of the low pressure sewage secondary steam Ld of negative pressure residual evaporator 14 and the steaming of circulating cooling water- to-water heat exchanger 12
Vapor inlet is connected, and the import of the cooling water inlet N1 of circulating cooling water- to-water heat exchanger 12 is connected with the cooling water outlet of cooling tower 44, follows
The outlet of the cooling water outlet N2 of ring cooling water heat exchanger 12 is connected with the cooling water inlet of cooling tower 44, circulating cooling water- to-water heat exchanger
The import of the regeneration raw water D of the outlet and demineralized water reverse osmosis membrane 23 of 12 low pressure clear water D3 communicates.
The feed inlet phase of the salt outlet of the industrial grade sodium chloride K1 of waste heat crystallizing evaporator 8 and crystal salt purification device 9 again
Logical, the have surplus heat import of heat source J1, the outlet of coagulation hydroenergy backwater J2, high-purity technical grade chlorine is arranged in purification device 9 to crystal salt again
Change the discharge port of sodium K4.
The import of the high-temperature smoke discharging Y of the flue gas contaminated water evaporator 37 of boiler and recuperation of heat plate A3 with come from boiler or dedusting
The flue of the high-temperature smoke discharging Y of device is connected, the outlet of the medium temperature flue gas Y0 of flue gas contaminated water evaporator 37 and the desulfurization of desulfurizing tower 34 into
The import of cigarette Y1 is connected, the spray import of mother liquor G4 and the mother liquor G4 of waste heat crystallizing evaporator 8 of flue gas contaminated water evaporator 37
The outlet of the outlet low pressure mother liquor G5 that communicates perhaps negative pressure residual evaporator 14 communicate or other high concentration stain diseases come
The outlet in source communicates, and flue gas contaminated water evaporator 37 is additionally provided with the discharge port of flue gas desiccation solid waste K7.
It includes residual heat from boiler fume compound spray tower 31, the compound spray of residual heat from boiler fume that residual heat from boiler fume, which recycles component 30,
The gas inlet of leaching tower 31 is communicated with the outlet of the desulfurization fume Y1 of desulfurizing tower 34, the cigarette of residual heat from boiler fume compound spray tower 31
The outlet of gas residual heat high-temperature water Rg1 is communicated with the import of the first low temperature exhaust heat heat source R1 of negative pressure residual evaporator 14, boiler smoke
The outlet phase of the import of the fume afterheat water at low temperature Rh2 of gas waste heat compound spray tower 31 and the first low temperature exhaust heat heat source water outlet R2
It is logical.
Steam turbine power generation and waste heat recycling plate A4 condenser 42 recirculated water water outlet Rg3 outlet in addition to cooling tower
44 cooling water inlet is also communicated with the import of the second low temperature exhaust heat heat source R3 of negative pressure residual evaporator 14, condensing outside being connected
The import of the recirculated water water inlet Rh4 of device 42 is also hot with the second low temperature exhaust heat other than being connected with the cooling water outlet of cooling tower 44
The outlet of source water outlet R4 communicates.
Steam turbine power generation and waste heat recycling plate A4 steam turbine 43 steam extraction outlet in addition to feed-water heater component 40
Air intake, oxygen-eliminating device 41 air intake be connected with heating or the high temperature side-entrance of the hot-water heater 46 of technique heat user it is outer,
It is also communicated with the import of the waste heat heat source J1 of waste heat crystallizing evaporator 8, or the waste heat heat source J1 with crystal salt purification device 9 again
Import communicate, or communicated with the import of the waste heat heat source J1 of mother liquor desiccation residual evaporator 13, the condensed water of oxygen-eliminating device 41
Import other than being communicated with the outlet of the coagulation hydroenergy backwater J2 of the condensation water out of condenser 42, hot-water heater 46, also with come
From the coagulation hydroenergy backwater J2 of waste heat crystallizing evaporator 8 or crystal salt purification device 9, mother liquor desiccation residual evaporator 13 again
Outlet communicates, also in waste-heat recoverer component 10+11 oxygen-eliminating device and process water heater heated by waste heat 11 be heated water outlet M2
Outlet communicate, oxygen-eliminating device and process water heater heated by waste heat 11 are heated into the import of water M1 and the condensed water of condenser 42
Mouth communicates.
Waste-heat recoverer component 10+11 includes heat supply network return water heater heated by waste heat 10, the heat of heat supply network return water heater heated by waste heat 10
The import of net return water water inlet water M3 is communicated with the water pipe that comes of the low-temperature return water Rh of hot-water heater 46, heat supply network return water waste-heat
The heat supply network return water water inlet of device 10 goes to the outlet of water M4 and the import of the low-temperature return water Rh of hot-water heater 46 to communicate, more than heat supply network return water
The high temperature side-entrance of hot heater 10 is connected with the outlet of the sewage secondary steam L of waste heat crystallizing evaporator 8, heat supply network return water waste heat
The high temperature side second of heater 10 drains the outlet of D2 and the draining of high temperature side first of oxygen-eliminating device and process water heater heated by waste heat 11
After the outlet of D1 is connected, communicated with the import of the regeneration raw water D of demineralized water reverse osmosis membrane 23.
The more medium filter 1 of thermal method waste water control and recycling plate A1 are additionally provided with the import of external concentrated water Pw,
It is communicated with the inlet pipeline of the low concentration sewage source in the public wastewater influent except steam power plant, thermal method waste water control and money
The mixed water pretreatment pond 4 of source plate A1 is additionally provided with the import of external highly concentrated raw water Gw, with the public dirt except steam power plant
The inlet pipeline of higher concentration sewage source in water water inlet communicates, and the crystal salt of thermal method waste water control and recycling plate A1 are again
Purification device 9 is additionally provided with the feed inlet of the public external primary industry salt Kw except steam power plant.
It should be noted that the invention proposes how using heat-exchange method, waste heat evaporation and energy stepped utilization method
Etc. the sewage such as comprehensively solves steam power plant water resource and material resource reuse problem method, and according to this overall solution party
Case can have specific implementation device of different specific implementation measure and different structure, and above-mentioned specific embodiment is only therein
It is a kind of, the embodiment of any other like simple deformation, such as it is related to the choosing of the heat recovery heat exchanger pattern
Type and number of units variation；Waste heat heat source pattern be using lower than 100 DEG C low-pressure steam, higher than atmospheric pressure positive pressure steam or
The waste heats pattern such as afterheat hot water, flue gas；Only implement a part in claim rather than the steaming of the waste heat driving of whole
Originating party formula or sewage disinfection treatment process or post-processing process etc.；Or by sewage pretreatment tank and desulfurization blowdown pretreatment pool
Merge and other simply to processing equipment or process merging or separately design；Or using simple replacement variety classes, property
The sewage treatment of corresponding link can be carried out with the film of quality or other sewage-treatment plants；Or carry out average expert personage
Other modes of texturing expected etc.；Or by the technical approach with the same or similar method, system and structure be applied to it is other
The similar desulfurization water process of industry and application, each fall within protection scope of the present invention.
Claims (8)
1. a kind of public environmentally friendly factory of full resource utilization of industrial high-salt wastewater based on thermal method, total system includes four big boards
Block, i.e. thermal method waste water control and recycling plate (A1), demineralized water plate (A2), boiler and recuperation of heat plate (A3), steam turbine
Auxiliary line facility between power generation and waste heat recycling plate (A4) and plate interiors and plate, which is characterized in that steam turbine hair
Electricity and the condenser (42) of waste heat recycling plate (A4) use low vacuum heat exchange structure, and boiler and recuperation of heat plate (A3), which remove, includes
Further include flue gas contaminated water evaporator (34) outside boiler body (33) and its conventional auxiliary system and is carried based on inlet air of boiler vapor
The residual heat from boiler fume of thermal cycle recycles component (30), the more medium filter of thermal method waste water control and recycling plate (A1)
(1) outlet of the demineralized water concentrated water (P1) of the import and demineralized water plate (A2) of demineralized water concentrated water (P1) is connected, multimedium mistake
The import of the cooling tower sewerage (P2) of filter (1) and steam turbine power generation and the cooling tower (44) of waste heat recycling plate (A4) it is cold
But the outlet of tower sewerage (P2) is connected, the outlet of the high concentrated water of suspension (G9) of more medium filter (1) and flocculation sedimentation tank
(21) original water inlet is connected, the filters pressing water out phase of the filters pressing water inlet and the first filter press (20) of more medium filter (1)
Even, the processing water out of more medium filter (1) is connected with the original water inlet of first-stage reverse osmosis film (2), first-stage reverse osmosis film (2)
Level-one clear water (D5) outlet and the import phase of the regeneration raw water (D) of the demineralized water reverse osmosis membrane (23) of demineralized water plate (A2)
Even, the processing water out of first-stage reverse osmosis film (2) is connected with the original water inlet of two-pass reverse osmosis film (3), two-pass reverse osmosis film (3)
The outlet of second level clear water (D4) be connected with the import of the regeneration raw water (D) of demineralized water reverse osmosis membrane (23), two-pass reverse osmosis film
(3) processing water out is connected with the import of the highly concentrated raw water (G) of mixed water pretreatment pond (4), and the import of highly concentrated raw water (G) also divides
Not in including coming from first-stage reverse osmosis film (2), two-pass reverse osmosis film (3), hyperfiltration/microfiltration film processing unit (6), the second filter press
(15), it comes from the source water pretreatment pool (22) of demineralized water plate (A2), demineralized water reverse osmosis membrane (23), come from boiler and heat time
Highly concentrated drain outlet including the desulfurizing tower (34) of receipts plate (A3) communicates, and mixes the high concentrated water of blowdown (G1) of water pretreatment pond (4)
Outlet be connected with the original water inlet of the second filter press (15), mix water pretreatment pond (4) processing water out and oxidation calcification pond
(5) original water inlet is connected, and oxidation calcification pond (5) is provided with the throwing of the import of oxidant (O), milk of lime and composite drug (F)
Material mouth, the discharge port of calcium sulfate (K3), the discharge port of other solid salts (K5), processing water out, aoxidize the processing of calcification pond (5)
Water out is connected with the original water inlet of hyperfiltration/microfiltration film processing unit (6), and hyperfiltration/microfiltration film processing unit (6) is provided with lye
(CH) outlet of feed inlet, regenerated sewage (G3) and processing water out, the processing water of hyperfiltration/microfiltration film processing unit (6) go out
Mouth divides the original water inlet of salt device (7) to be connected with nanofiltration membrane, and nanofiltration membrane divides the outlet and oxidation of the high concentrated water (H) of salt device (7)
The import of the high concentrated water (H) in calcification pond (5) is connected, and nanofiltration membrane divides the treated water outlet and waste heat crystallizing evaporator of salt device (7)
(8) original water inlet is connected, and the import for heat source (J1) that have surplus heat, waste heat heat source water outlet (J2) is arranged in waste heat crystallizing evaporator (8)
Outlet, industrial grade sodium chloride (K1) salt outlet, sewage secondary steam (L) outlet and mother liquor (G4) outlet, wherein remaining
The high temperature side-entrance phase of the outlet of the sewage secondary steam (L) of thermal evaporation crystallizer (8) and waste-heat recoverer component (10+11)
Even, the high temperature side condensation water out and the regeneration raw water (D) of demineralized water reverse osmosis membrane (23) of waste-heat recoverer component (10+11)
Import communicates, original water inlet phase of the processing water out of hyperfiltration/microfiltration film processing unit (6) also with negative pressure residual evaporator (14)
Even, negative pressure residual evaporator (14) is provided with the import of the first low temperature exhaust heat heat source (R1), the water outlet of the first low temperature exhaust heat heat source
(R2) import of outlet, the second low temperature exhaust heat heat source (R3), the outlet of the second low temperature exhaust heat heat source water outlet (R4), low pressure sewage
The outlet of secondary steam (Ld) and the outlet of low pressure mother liquor (G5), the outlet of mesolow mother liquor (G5) and mother liquor desiccation waste heat steam
The original water inlet for sending out device (13) is connected, and the import for heat source (J1) that have surplus heat, waste heat heat is arranged in mother liquor desiccation residual evaporator (13)
Source is discharged the discharge port of the outlet of (J2), mother liquor desiccation solid waste (K6), and the low pressure sewage secondary of negative pressure residual evaporator (14) steams
The outlet of vapour (Ld) is connected with the steam inlet of circulating cooling water- to-water heat exchanger (12), the cooling of circulating cooling water- to-water heat exchanger (12) into
The import of water (N1) is connected with the cooling water outlet of cooling tower (44), the cooling water outlet (N2) of circulating cooling water- to-water heat exchanger (12)
Outlet be connected with the cooling water inlet of cooling tower (44), the outlet of the low pressure clear water (D3) of circulating cooling water- to-water heat exchanger (12) with remove
The import of the regeneration raw water (D) of salt water reverse osmosis membrane (23) communicates.
2. the public environmentally friendly factory of the full resource utilization of industrial high-salt wastewater as described in claim 1 based on thermal method, feature
It is the salt outlet and crystal salt purification device (9) again of the industrial grade sodium chloride (K1) of the waste heat crystallizing evaporator (8)
Feed inlet communicates, crystal salt again purification device (9) setting have surplus heat the import of heat source (J1), the outlet of coagulation hydroenergy backwater (J2),
The discharge port of high-purity technical grade sodium chloride (K4).
3. the public environmentally friendly factory of the full resource utilization of industrial high-salt wastewater as described in claim 1 based on thermal method, feature
It is the import of the high-temperature smoke discharging (Y) of the flue gas contaminated water evaporator (37) of the boiler and recuperation of heat plate (A3) and from pot
The flue of the high-temperature smoke discharging (Y) of furnace or deduster is connected, the outlet of the medium temperature flue gas (Y0) of flue gas contaminated water evaporator (37) and de-
The desulfurization of sulphur tower (34) into cigarette (Y1) import be connected, the import of the spray mother liquor (G4) of flue gas contaminated water evaporator (37) with it is remaining
The outlet of the mother liquor (G4) of thermal evaporation crystallizer (8) communicate or the low pressure mother liquor (G5) of negative pressure residual evaporator (14) go out
Mouth communicates or the outlet in other high concentration stain diseases source communicates, and flue gas contaminated water evaporator (37) is additionally provided with flue gas desiccation
The discharge port of solid waste (K7).
4. the public environmentally friendly factory of the full resource utilization of industrial high-salt wastewater as described in claim 1 based on thermal method, feature
It is that residual heat from boiler fume recycling component (30) includes residual heat from boiler fume compound spray tower (31), residual heat from boiler fume
The gas inlet of compound spray tower (31) is communicated with the outlet of the desulfurization fume (Y1) of desulfurizing tower (34), and residual heat from boiler fume is compound
The outlet of the fume afterheat high-temperature water (Rg1) of spray column (31) and the first low temperature exhaust heat heat source of negative pressure residual evaporator (14)
(R1) import communicates, and the import of the fume afterheat water at low temperature (Rh2) of residual heat from boiler fume compound spray tower (31) is low with first
The outlet of warm waste heat heat source water outlet (R2) communicates.
5. the public environmentally friendly factory of the full resource utilization of industrial high-salt wastewater as described in claim 1 based on thermal method, feature
Be the outlet of the recirculated water water outlet (Rg3) of the condenser (42) of the steam turbine power generation and waste heat recycling plate (A4) in addition to
Be connected with the cooling water inlet of cooling tower (44) outer, also with the second low temperature exhaust heat heat source (R3) of negative pressure residual evaporator (14)
Import communicates, the import of the recirculated water of condenser (42) water inlet (Rh4) other than being connected with the cooling water outlet of cooling tower (44),
Also communicated with the outlet of the second low temperature exhaust heat heat source water outlet (R4).
6. the public environmentally friendly factory of the full resource utilization of industrial high-salt wastewater as described in claim 1 based on thermal method, feature
Be the steam extraction outlet of the steam turbine (43) of the steam turbine power generation and waste heat recycling plate (A4) in addition to feed-water heater
The high temperature side of the hot-water heater (46) of the air intake of component (40), the air intake of oxygen-eliminating device (41) and heating or technique heat user
Import is also communicated with the import of the waste heat heat source (J1) of waste heat crystallizing evaporator (8), or purify dress again with crystal salt outside being connected
The import for setting the waste heat heat source (J1) of (9) communicates, or with the waste heat heat source (J1) of mother liquor desiccation residual evaporator (13) into
Mouthful communicate, the condensation water inlet of oxygen-eliminating device (41) in addition to condenser (42) condensation water out, hot-water heater (46) it is solidifying
Bear water return water (J2) outlet communicate it is outer, also and from waste heat crystallizing evaporator (8) or crystal salt purification device (9), female again
The outlet of the coagulation hydroenergy backwater (J2) of liquid desiccation residual evaporator (13) communicates, also and in waste-heat recoverer component (10+11)
The outlet for being heated water outlet (M2) of oxygen-eliminating device and process water heater heated by waste heat (11) communicates, oxygen-eliminating device and process water waste-heat
The import of device (11) being heated into water (M1) is communicated with the condensation water out of condenser (42).
7. the public environmentally friendly factory of the full resource utilization of industrial high-salt wastewater as described in claim 1 based on thermal method, feature
It is that the waste-heat recoverer component (10+11) includes heat supply network return water heater heated by waste heat (10), heat supply network return water heater heated by waste heat
(10) import of heat supply network return water water inlet water (M3) is communicated with the water pipe that comes of the low-temperature return water (Rh) of hot-water heater (46), heat
The outlet of water (M4) and the low-temperature return water of hot-water heater (46) are gone in the heat supply network return water water inlet of net return water heater heated by waste heat (10)
(Rh) import communicates, the high temperature side-entrance of heat supply network return water heater heated by waste heat (10) and the sewage two of waste heat crystallizing evaporator (8)
The outlet of secondary steam (L) is connected, and the high temperature side second of heat supply network return water heater heated by waste heat (10) drains outlet and the oxygen-eliminating device of (D2)
And after the outlet of the draining of high temperature side first (D1) of process water heater heated by waste heat (11) is connected, with demineralized water reverse osmosis membrane (23)
The import of regeneration raw water (D) communicates.
8. the public environmentally friendly factory of the full resource utilization of industrial high-salt wastewater as described in claim 1 based on thermal method, feature
It is that the more medium filter (1) of the thermal method waste water control and recycling plate (A1) is additionally provided with external concentrated water (Pw)
Import communicates, thermal method sewage with the inlet pipeline of the low concentration sewage source in the public wastewater influent except steam power plant
The mixed water pretreatment pond (4) of improvement and recycling plate (A1) is additionally provided with the import of external highly concentrated raw water (Gw), with thermoelectricity
The inlet pipeline of the higher concentration sewage source in public wastewater influent except factory communicates, thermal method waste water control and recycling plate
The crystal salt of block (A1) again purification device (9) be additionally provided with the public external primary industry salt (Kw) except steam power plant into
Material mouth.
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| US12040517B2 (en) | 2022-11-15 | 2024-07-16 | Rahul S. Nana | Reverse electrodialysis or pressure-retarded osmosis cell and methods of use thereof |
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