CN209636045U - A kind of electroplating wastewater zero equipment - Google Patents
A kind of electroplating wastewater zero equipment Download PDFInfo
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- CN209636045U CN209636045U CN201821769972.7U CN201821769972U CN209636045U CN 209636045 U CN209636045 U CN 209636045U CN 201821769972 U CN201821769972 U CN 201821769972U CN 209636045 U CN209636045 U CN 209636045U
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Abstract
The utility model discloses a kind of electroplating wastewater zero equipment and application method, mainly solve the problems, such as that process flow in the prior art is long, complicated for operation, reverse osmosis membrane is easy to pollute, energy consumption is high and equipment operation maintenance is costly needed for evaporative crystallization.A kind of electroplating wastewater zero equipment and technique, it is handled by preposition pretreatment and efficiently reverse osmosis concentrated compression system, raw water can be concentrated to original 8%-10%, when the conductivity of raw water is 1000-3000 μ S/cm, efficient reverse osmosis concentrated compression system concentrated water conductivity is up to 10000-37500 μ S/cm, mitigate the burden of evaporator, energy consumption problem needed for reducing evaporative crystallization.
Description
Technical field
The utility model relates to field of environment engineering technology, in particular to a kind of electroplating wastewater zero equipment and user
Method.
Background technique
Electroplating wastewater is the waste water of electroplating facility discharge, the noxious materials such as Chang Hanyou chromium, nickel, copper, aluminium, cyanogen and its complexing
Object, simultaneously containing harmful substances such as nitrogen, phosphorus, organic matter, acid, alkali, it is necessary to which the standard handled to environmental requirement could discharge.According to
National policy trend, electroplating wastewater need to carry out zero discharge treatment and reuse.
Chinese patent CN201817343U discloses a kind of electroplating wastewater zero technique, is filtered using leading portion precipitation adsorption
Pretreatment, carries out continuous three-level reverse osmosis concentration, I and II reverse osmosis produced water reuse, the reverse osmosis concentrated water evaporation knot of three-level later
Brilliant technique.Its shortcoming is that:
Energy consumption is high and equipment operation maintenance is costly needed for evaporative crystallization；
Process flow is long, and device category is more, complicated for operation；
Blocking filtering pretreatment is easy using high polymer coagulant and reverse osmosis membrane is caused to pollute；
Utility model content
One of the utility model aim is to provide a kind of electroplating wastewater zero equipment, to solve energy needed for evaporative crystallization
Consumption is big, equipment operation maintenance is costly, as caused by high polymer coagulant the problem of fouling membrane.
In order to achieve the above objectives, the utility model embodiment uses following scheme:
One conditioning tank；
One raw water booster pump, the raw water booster pump are arranged at conditioning tank rear；
One MCR system, the MCR system are arranged at raw water booster pump rear；
One MCR water tank, the MCR water tank are arranged at MCR system rear；
One first booster water pump, first booster water pump are arranged at MCR water tank rear；
One resin cation demineralizer, the resin cation demineralizer are arranged at the first booster water pump rear；
One decarbonizing tower, the decarbonizing tower are arranged at resin cation demineralizer rear；
One efficient reverse osmosis water tank, the efficiently reverse osmosis water tank are arranged at decarbonizing tower rear；
One second booster water pump, the second booster water pump setting is at efficient reverse osmosis water tank rear；
The second booster water pump rear is arranged in one cartridge filter, the cartridge filter；
One efficient reverse osmosis concentrated compression system, the efficiently reverse osmosis concentrated compression system are arranged at cartridge filter rear；
One reuse water tank, the reuse water tank setting is at efficient reverse osmosis concentrated compression system rear；
One constant pressure water supply system, the constant pressure water supply system are arranged at reuse water tank rear；
One concentrated water case, the concentrated water case setting is at efficient reverse osmosis concentrated compression system rear；
One evaporator, the evaporator are arranged at concentrated water case rear；And
One (PLC) electric-control system, (PLC) electric-control system are electrically connected with aforementioned 15 device structure units.
Preferably, MCR water tank includes that MCR produces water storage tank and first liquid level gauge.MCR produces water storage tank for storing MCR system
The water of generation, built-in first liquid level gauge provide required liquid level signal and alarm signal.
Preferably, resin cation demineralizer includes resin and container.Resin cation demineralizer produces water for removing MCR
Hardness leakage prevents efficient counter-infiltration system hardness fouling.When the raw water containing hardness ions passes through water softener inner resin layer,
Calcium ions and magnesium ions in water are adsorbed by resins exchange, while the sodium ion for waiting substance releases to go out, and complete water demineralization.Work as Resin Absorbent
It after a certain amount of calcium ions and magnesium ions reach saturation state, needs to regenerate, regenerative process is exactly to rinse resin layer with salt water, on branch
Hardness ions cement out again, discharged outside the tank with regeneration liquid waste.Resin cation demineralizer operating procedure: operation → regeneration
(backwash inhales salt, displacement, just washing) → operation.
Preferably, decarbonizing tower includes water feed apparatus, filler and blower.Water feed apparatus generally uses main pipe and branch pipe water distribution,
Material is 304 Wire wound tubes or 316 Wire wound tubes；Filler selects polyhedron empty ball, and material is ceramics or plastics；Blower is mainly to provide
Wind regime, so that the carbon dioxide to water carries out stripping.When carbon dioxide cleaner works, water enters from top, under drenching through water dispensing apparatus, passes through
After packing layer, be discharged into water tank from lower part, and the wind direction of the offer of blower be it is reverse, i.e., stripping is carried out from bottom to top, by filling out
After the bed of material, it is discharged by top.When its principle is the air stream of carbon dioxide cleaner and contacts except carbon water phase, CO2 will be by air stream in water
It takes out of.
Preferably, efficient reverse osmosis water case includes raw water storage tank and second liquid level gauge.Efficient reverse osmosis water tank is for storing
Raw water, built-in second liquid level gauge provide required liquid level signal and alarm signal.
Preferably, cartridge filter includes PP filter core, filter housing, pressure gauge.It is mainly pre- using the PP cotton filter element for filtering 5 μm of diameter
The suspended matter that anti-property intercepts 5 μm or more in water enters efficient counter-infiltration system, so that the membrane module of efficient counter-infiltration system is protected,
Prevent membrane module from generating irreversible physical damage.
Preferably, efficiently reverse osmosis concentrated compression system includes high-pressure pump, pressurization cycle pump, throwing device and chemical cleaning dress
It sets.
High-pressure pump is used to provide the pressure and water of efficient reverse osmosis operation, guarantees the normal fortune of reverse osmosis concentrated compression system
Row.High-pressure pump 2205 two-phase steel materials of selection, 750 meters of lift.This system is equipped with low tension switch before high-pressure pump, is equipped with height after pump
It compresses switch and pressure gauge, high-pressure pump water shortage is avoided to run or overlond running.High-pressure pump is equipped with frequency converter and presses the given signal of system
Realize automatic start-stop, it also can hand-operated forced start and stop.
Pressurization cycle is pumped for recycling efficient reverse osmosis concentrated water, is provided high flow rate surface flow for membrane module, is reduced film table
Face concentration polarization delays membrane module chemical structure, prolonging service lifetime of film.Circularly-supercharged pump selects SUS904L stainless steel material,
50 meters of lift.
Throwing device includes former agent throwing device, scale inhibitor feeding device, non oxidizing bactericide throwing device, PH readjustment
Device totally 4 sets of throwing devices, every set throwing device is by chemical tank, liquidometer, dosing pump, valve, control system and connecting pipe
Composition.It can delay the pollution of high pressure counter-infiltration system membrane module, fouling and prevent irreversible chemical damage, extend film uses the longevity
Life.PH call-back device is used to efficient reverse osmosis produced water pH value pulling back to 6.5-8.5, it is ensured that reverse osmosis produced water pH value reaches back
It is required with water.
Chemically-cleaning device is made of cleaning pump, cleaning water tank, cleaning micro-filter, is deposited on film surface for cleaning
Dirt restores the performance of reverse osmosis membrane to the maximum extent.
Control system will carry out special control and guarantor to reverse osmosis module using Siemens's PLC programmable controller
Shield, to it is any it is improper operation or mechanical factor cause failure, system will interrupt at once, effectively guarantee produce water quality and
Yield, makes that system is safe and stable, efficient operation.The system is ad hoc automatic and manual two kinds of working conditions, has full/water shortage
Linkage, high low pressure protection, fault alarm, monitoring water quality on line, and multiple automatic interlock defencive function is set etc..
Membrane module specification and technical indicator
Enrichment factor: 90%~92%
Membranous type: 8 inches of equipment with high desalinization low energy consumption antipollution sea water desalination membranes
Brand: Dow
Pressure vessel: 1000psi
Material: glass reinforced plastic
The place of production: Jiangsu
Maximum allowable operating temperature (M.A.O.T.): 45 DEG C
Water inlet chlorine residue: < 0.1ppm
Sludge of intaking deposits index (SDI): < 5
Produce water conductivity: < 200 μ S/cm
Concentrated water conductivity: 10000-37500 μ S/cm
This system reverse osmosis membrane uses Dow FILMTEC brand, and Tao Shi FilmTec company is practical first in the world
Since the composite membrane of bady, film and its application technology have just obtained unprecedented development, the developing in many fields and
Since its scale application be using Tao Shi membrane component, and the reverse osmosis and nanofiltration membrane product of FILMTEC brand is recognized
For higher, the more consistent and more stable seperation film reputable brand of performance, occupation rate of market the first in the world is used for a long time through user and demonstrate,proves
Bright, the service life of film is long, and performance is stablized, not easy to pollute, and it is restorative good to clean, it is only produced in USA and earliest by stringent
ISO9000 quality system certification.
Preferably, reuse water tank is for storing efficient reverse osmosis-purified water, built-in PH meter, sterilizing unit and third liquid level
Meter, third liquid level gauge provide required liquid level signal and alarm signal.
Preferably, constant pressure water supply system includes frequency conversion reuse water pump, flowmeter, pressure gauge and transmitter, constant pressure water supply system
The purified water for being stored in reuse water tank is delivered to reuse pipe network by system, it can be ensured that reuse pipe network pressure of supply water it is constant
Between 0.3MPa~0.4MPa, facilitate the use of recycle-water.The electric machine frequency of water pump is adjusted in frequency converter, and flowmeter is used for
Monitoring water supply instantaneous flow and integrated flux, transmitter convert electric signal for pump outlet pressure value and send automatically controlled system to
System.
Preferably, evaporator is for evaporative crystallization processing.
The two of the utility model aim are to provide a kind of electroplating wastewater zero technique, to solve process flow length, behaviour
Make complicated problem.
In order to achieve the above objectives, the utility model embodiment uses following scheme:
A kind of electroplating wastewater zero equipment application method, comprising:
A) electroplating wastewater is converged into conditioning tank；
B) raw water booster pump is promoted to MCR system；
C) filtered water is stored in MCR water tank, resin cation demineralizer and decarburization is pumped by the first pressurization
Tower；
D) purified water is stored in efficient reverse osmosis water tank 108, is sent into after being promoted by the second booster pump 109 efficient
Counter-infiltration system；
E) efficiently reverse osmosis production water is entered into reuse water tank；
F) efficient reverse osmosis concentrated water is entered into concentrated water case.
Preferably, electroplating wastewater is converged into conditioning tank, waste water pH value is adjusted in pond to 6-7.
Preferably, MCR system 103 is promoted to by raw water booster pump 102 after adjusting, continues to adjust pH value in MCR system
To 8.5-10, metal ion forms metal hydroxides indissoluble object, and by 10 nanometers of MCR film filtering removal built in system with
Upper heavy metal suspended matter, larger molecular organics, colloid, microorganism, bacterium and impurity.
MCR film uses strong acid-base resistance, PTFE material Immersive hollow fiber membrane not easy to break, can extend the use of MCR
Service life.
Preferably, filtered water is stored in MCR water tank, is pumped into resin cation demineralizer by the first pressurization and is taken off
Total hardness in water is reduced to 0.1ppm hereinafter, dissolubility CO 2 reduction is to 10ppm or less by carbon tower.
Aforementioned 7 device structure units be it is subsequent efficiently it is reverse osmosis good flow condition is provided, alleviate membranous system
Operating load extends the service life of film.
Preferably, the water after aforementioned 7 device structure purification units is stored in efficient reverse osmosis water tank, is increased by second
Press pump promotes the efficient reverse osmosis concentrated compression system of feeding after preventative 5 microns of the retention of cartridge filter or more impurity and is concentrated
Desalination.
Efficient reverse osmosis membrane uses antipollution equipment with high desalinization low energy consumption sea water desalination membrane, and operating pressure is controlled in 7.5MPa,
The system rate of recovery reaches 90%-92%, and concentrated water cocnentration factor reaches 10-13 times of influent density.
Preferably, efficiently reverse osmosis production water enters reuse water tank, via constant pressure water supply system reuse to electroplating assembly line
Use water.
Preferably, efficient reverse osmosis concentrated water enters concentrated water case, is evaporated crystallization treatment through evaporator.
The utility model the utility model has the advantages that
The utility model reverse osmosis concentrated compression system processing by preposition pretreatment and efficiently, raw water can be concentrated to original 8%-10%, when the conductivity of raw water is 1000-3000 μ S/cm, efficient reverse osmosis concentrated compression system concentrated water conductivity is reachable 10000-37500 μ S/ female bvv9；Cm mitigates the burden of evaporator, energy consumption needed for reducing evaporative crystallization；No setting is required sedimentation basin It is handled with subsequent multi-stage reverse osmosis, shortens process flow and equipment investment, reduce resulting energy consumption and operation Maintenance cost；Constant pressure water supply mode is used simultaneously, it can be ensured that recycle-water constant pressure and flow, it is easy to use。
Conditioning tank and MCR system set alkali throwing device, adjust raw water PH to appropriate value, form metal hydroxides indissoluble Object, while necessary condition is provided for efficient counter-infiltration system；MCR system and efficient counter-infiltration system are respectively provided with a set of chemical cleaning
Device, when film is contaminated,Restore the performance of film in time by chemical cleaning, it is ensured that entire Zero discharging system uses the longevity Life；Resin cation demineralizer is equipped with salt regenerative system, guarantees that the regeneration of resin uses；MCR system be equipped with backwash water pump and
A set of chemistry chemicals dosing plant, when backwash, can be added chemical agent help and clean；Efficient counter-infiltration system is equipped with reducing agent, scale inhibition Agent, non oxidizing bactericide chemicals dosing plant, when operation, add medicament, can inhibit reverse osmosis pollution.Every complete corollary equipment can
The timely process performance of recovery system extends the service life of each component,Guarantee system is run under best performance state, Obtain moderately good treatment effect。
System control aspect, whole system are equipped with a variety of self-reacting device control and protection: alkali throwing device can basis
PH value automatically adjusts alkali dosage, accomplishes accurately to control water quality pH value；MCR system can automatic running, backwash, without artificial behaviour
Make；Efficient counter-infiltration system is equipped with automatic flushing function, and autostop is rinsed with clear water according to set time, removes membrane removal table in time
The pollutant in face extends the service life of film.Constant pressure water supply system remains reuse water pressure, and workshop is facilitated to use；
Evaporator can automatic feed, circulation distillation.Using PLC programmable controller to whole system master control, for convenience of system debug
The needs of repair apparatus in the future, it is ad hoc to have full-automatic, semi-automatic, manual and function of stopping in emergency, it is ensured that system safety, height
Effect, steady, economical operation.
Detailed description of the invention
Attached drawing 1 is the structural block diagram of the utility model.
Attached drawing 2 is the utility model process flow chart.
101, conditioning tank 102, raw water booster pump 103, MCR system
104, MCR water tank 105, the first booster water pump 106, resin cation demineralizer
107, decarbonizing tower 108, efficiently reverse osmosis water tank 109, the second booster water pump
110, cartridge filter 111, efficiently reverse osmosis concentrated compression system 112, reuse water tank
113, constant pressure water supply system 114, concentrated water case 115, evaporator
116, electric-control system
Specific embodiment
In order to which the objects, technical solutions and advantages of utility model of the present invention are more clearly understood, with reference to embodiments,
Utility model embodiment of the present invention is further elaborated.It should be appreciated that specific embodiment described herein is only
To explain utility model embodiment of the present invention, it is not intended to limit the present invention utility model embodiment.
Embodiment one:
As shown in Figure 1, a kind of electroplating wastewater zero equipment and application method, including the conditioning tank being successively linked in sequence
101, raw water booster pump 102, MCR system 103, MCR water tank 104, the first booster water pump 105, resin cation demineralizer 106,
Decarbonizing tower 107, efficiently reverse osmosis water tank 108, the second booster water pump 109, cartridge filter 110, efficiently reverse osmosis concentrated compression system
111, reuse water tank 112, constant pressure water supply system 113, concentrated water case 114, evaporator 115, and with aforementioned 15 device structure lists
The programmable logic controller (PLC) PLC electric-control system 116 of member electrical connection.
All devices are all connected by pipeline, and are designed with valve control opening and closing.
Capital equipment technical parameter and function declaration:
Conditioning tank 101
Conditioning tank 101 collects the untreated electroplating wastewater raw water of owner, carries out pH value preconditioning.Using steel reinforced concrete or prefabricated
Armored steel structure.
Raw water booster pump 102
Raw water booster pump 102 provides required water and pressure for purification pretreatment system, realizes by system institute to signal
Automatic start-stop, also can hand-operated forced start and stop.Raw water booster pump 102 is 2, stainless steel or plastic material, the using and the reserved.Booster pump
Outlet sets pipeline flowmeter, pipe-line mixer.
MCR system 103
MCR film is by the way of immersed membranes component, using MCR film nanoscale physical pore size to the substance in feed liquid
It separated, purified, purified and is concentrated.Major function be 10 nanometers or more heavy metal suspended matters of removal, larger molecular organics,
Colloid, microorganism, bacterium and impurity, while entering reverse osmosis system without adding high polymer coagulant and setting sedimentation basin to purify
The water inlet of system guarantees reverse osmosis system to protect reverse osmosis membrane while the alkaline condition needed for providing efficient feed water by reverse osmosis
The normal operation of system.
MCR title: membrane chemical reactor
Reactor design: steel reinforced concrete or prefabricated armored steel structure
Molecular cut off: 150,000 dalton
Film wire material: polytetrafluoroethylene (PTFE) (PTFE)
Transmembrane pressure: -60~0KPa
Backwash pressure: 30~100KPa
PH value: accidental conditions 8.5-10 is run, can tolerate pH value 0-14
Use temperature: 5 DEG C -50 DEG C
Produce water turbidity: ≈ 0
This MCR system 103 is fully automatic operation, backwash, without just washing, with a set of chemical chemicals dosing plant, 1 backwash water tank
And 2 (1 is standby with 1) backwash water pumps, chemical agent can be added and help backwash or directly carry out chemical cleaning.Utility model of the present invention
Using strong acid-base resistance, PTFE material Immersive hollow fiber membrane not easy to break, service life is up to 10-15.
MCR water tank 104
MCR water tank 104 includes that MCR produces water storage tank and first liquid level gauge.MCR water tank 104 is for storing the production of MCR system 103
Water, built-in first liquid level gauge provide required liquid level signal and alarm signal.
First booster pump 105
MCR is produced water water and is promoted from MCR water tank 104 to aftertreatment systems by the first booster pump 105, is resin cation
Demineralizer 106 and decarbonizing tower 107 provide required water and pressure, realize automatic start-stop to signal by system institute, also can be manual
Force start and stop.
First booster pump is 2, stainless steel or plastic material, the using and the reserved.Booster pump outlet sets pipeline flowmeter.
Resin cation demineralizer 106
Resin cation demineralizer 106 includes resin and container.Resin cation demineralizer 106 produces water for removing MCR
Hardness leakage prevents efficient counter-infiltration system hardness fouling.When the raw water containing hardness ions passes through water softener inner resin layer,
Calcium ions and magnesium ions in water are adsorbed by resins exchange, while the sodium ion for waiting substance releases to go out, and complete water demineralization.Work as Resin Absorbent
It after a certain amount of calcium ions and magnesium ions reach saturation state, needs to regenerate, regenerative process is exactly to rinse resin layer with salt water, on branch
Hardness ions cement out again, discharged outside the tank with regeneration liquid waste.106 operating procedure of resin cation demineralizer: operation → again
Raw (backwash inhales salt, displacement, just washing) → operation.
Decarbonizing tower 107
107 skull water feed apparatus of decarbonizing tower, filler and blower.Water feed apparatus generally uses main pipe and branch pipe water distribution, material
For 304 Wire wound tubes or 316 Wire wound tubes；Filler selects polyhedron empty ball, and material is ceramics or plastics；Blower is mainly to provide wind
Source, so that the carbon dioxide to water carries out stripping.When carbon dioxide cleaner works, water enters from top, under drenching through water dispensing apparatus, by filling out
After the bed of material, be discharged into water tank from lower part, and the wind direction of the offer of blower be it is reverse, i.e., carry out stripping from bottom to top, pass through filler
After layer, it is discharged by top.When its principle is the air stream of carbon dioxide cleaner and contacts except carbon water phase, CO2 will be by air stream band in water
Out.
Efficient reverse osmosis water tank 108
Efficient reverse osmosis water tank 108 includes raw water storage tank and second liquid level gauge.Efficient reverse osmosis water tank 108 is for storing height
Reverse osmosis raw water is imitated, built-in second liquid level gauge provides required liquid level signal and alarm signal.
Second booster pump 109
Second booster pump 109 promotes water to aftertreatment systems from efficiently reverse osmosis water tank 108, is cartridge filter
110 and efficiently reverse osmosis concentrated compression system 111 required water and pressure are provided, by system institute give signal realization automatic start-stop, also
It can hand-operated forced start and stop.
Second booster pump 109 is 2, stainless steel or plastic material, the using and the reserved.Booster pump outlet set pipeline flowmeter,
Pipe-line mixer.
Cartridge filter 110
Cartridge filter 110 includes PP filter core, filter housing and pressure gauge.Mainly prevented using the PP cotton filter element for filtering 5 μm of diameter
Property intercept water in 5 μm or more suspended matter enter efficient counter-infiltration system, thus protect efficiently reverse osmosis concentrated compression system 111 film
Component prevents membrane module from generating irreversible physical damage.
Efficient reverse osmosis concentrated compression system 111
Efficient reverse osmosis concentrated compression system 111 includes high-pressure pump, pressurization cycle pump, throwing device and chemically-cleaning device.
High-pressure pump is used to provide the pressure and water of efficient reverse osmosis operation, guarantees the normal fortune of reverse osmosis concentrated compression system
Row.High-pressure pump 2205 two-phase steel materials of selection, 750 meters of lift.This system is equipped with low tension switch before high-pressure pump, is equipped with height after pump
It compresses switch and pressure gauge, high-pressure pump water shortage is avoided to run or overlond running.High-pressure pump is equipped with frequency converter and presses the given signal of system
Realize automatic start-stop, it also can hand-operated forced start and stop.
Pressurization cycle is pumped for recycling efficient reverse osmosis concentrated water, is provided high flow rate surface flow for membrane module, is reduced film table
Face concentration polarization delays membrane module chemical structure, prolonging service lifetime of film.Circularly-supercharged pump selects SUS904L stainless steel material,
50 meters of lift.
Throwing device includes former agent throwing device, scale inhibitor feeding device, non oxidizing bactericide throwing device, PH readjustment
Device totally 4 sets of throwing devices, every set throwing device is by chemical tank, liquidometer, dosing pump, valve, control system and connecting pipe
Composition.It can delay the pollution of high pressure counter-infiltration system membrane module, fouling and prevent irreversible chemical damage, extend film uses the longevity
Life.PH call-back device is used to efficient reverse osmosis produced water pH value pulling back to 6.5-8.5, it is ensured that reverse osmosis produced water pH value reaches back
It is required with water.
Chemically-cleaning device is made of cleaning pump, cleaning water tank, cleaning micro-filter, is deposited on film surface for cleaning
Dirt restores the performance of reverse osmosis membrane to the maximum extent.
Control system will carry out special control and guarantor to reverse osmosis module using Siemens's PLC programmable controller
Shield, to it is any it is improper operation or mechanical factor cause failure, system will interrupt at once, effectively guarantee produce water quality and
Yield, makes that system is safe and stable, efficient operation.The system is ad hoc automatic and manual two kinds of working conditions, has full/water shortage
Linkage, high low pressure protection, fault alarm, monitoring water quality on line, and multiple automatic interlock defencive function is set etc..
Membrane module specification and technical indicator
Enrichment factor: 90%~92%
Membranous type: 8 inches of equipment with high desalinization low energy consumption antipollution sea water desalination membranes
Brand: Dow
Pressure vessel: 1000psi
Material: glass reinforced plastic
The place of production: Jiangsu
Maximum allowable operating temperature (M.A.O.T.): 45 DEG C
Water inlet chlorine residue: < 0.1ppm
Sludge of intaking deposits index (SDI): < 5
Produce water conductivity: < 200 μ S/cm
Concentrated water conductivity: 10000-37500 μ S/cm
This system reverse osmosis membrane uses Dow FILMTEC brand, and Tao Shi FilmTec company invents first in the world
Since the composite membrane of utility model practicability, film and its application technology have just obtained unprecedented development, and many fields are opened
It opens up and its since scale application is the reverse osmosis and nanofiltration membrane product quilt of FILMTEC brand using Tao Shi membrane component
It is known as the seperation film reputable brand that performance is higher, more consistent and more stable, occupation rate of market the first in the world makes for a long time through user
Service life with proof, film is long, and performance is stablized, not easy to pollute, and it is restorative good to clean, it is only produced in USA and earliest by stringent
ISO9000 quality system certification.
Reuse water tank 112
Reuse water tank with 112 in storing efficient reverse osmosis-purified water, built-in PH meter, sterilizing unit and third liquid level gauge, the
Three liquidometers provide required liquid level signal and alarm signal.
Constant pressure water supply system 113
Constant pressure water supply system 113 includes frequency conversion reuse water pump, flowmeter, pressure gauge and transmitter, and constant pressure water supply system will
The purified water for being stored in reuse water tank is delivered to reuse pipe network, it can be ensured that reuse pipe network pressure of supply water is constant in 0.3MPa
Between~0.4MPa, facilitate the use of recycle-water.The electric machine frequency of water pump is adjusted in frequency converter, and flowmeter is supplied for monitoring
Water instantaneous flow and integrated flux, transmitter convert electric signal for pump outlet pressure value and send electric-control system 116 to.
Concentrated water case 114
Concentrated water case 114 is for storing efficient reverse osmosis concentrated water.
Evaporator 115
Evaporator 115 is for evaporative crystallization processing.
As shown in Fig. 2, in use, electroplating wastewater flow into conditioning tank 101 in, in pond adjust waste water pH value to 6-7 after by
Raw water booster pump 102 is promoted to MCR system 103, continues to adjust pH value in MCR system 103 to 8.5-10, metal ion is formed
Metal hydroxides indissoluble object, and pass through 10 nanometers or more heavy metal suspended matters of MCR film filtering removal built in MCR system 103, big
Molecular organic, colloid, microorganism, bacterium and impurity.MCR film uses strong acid-base resistance, PTFE material immersion not easy to break
Hollow-fibre membrane can extend the service life of MCR.
Filtered water is stored in MCR water tank 104, is sent into 106 He of resin cation demineralizer by the first booster pump 105
Total hardness in water is reduced to 0.1ppm hereinafter, dissolubility CO 2 reduction is to 10ppm or less by decarbonizing tower 107.Aforementioned 7
Device structure unit be it is subsequent it is efficiently reverse osmosis good flow condition is provided, alleviate the operating load of membranous system, extend film
Service life.
Water after aforementioned 7 device structure purification units is stored in efficient reverse osmosis water tank 108, by the second booster pump
109 promoted be sent into after preventative 5 microns or more the impurity of retention of cartridge filter 110 efficiently reverse osmosis concentrated compression system 111 into
Row concentrating and desalinating, efficient reverse osmosis membrane use antipollution equipment with high desalinization low energy consumption sea water desalination membrane, and operating pressure control exists
7.5MPa, the system rate of recovery reach 90%-92%, and concentrated water cocnentration factor reaches 10-13 times of influent density.Efficiently reverse osmosis production water
Into reuse water tank 112, via 113 reuse of constant pressure water supply system to electroplating assembly line water；Finally, efficiently reverse osmosis concentrated water into
Enter concentrated water case 114, is evaporated crystallization treatment through evaporator 115.
It being handled by preposition pretreatment and efficiently reverse osmosis concentrated compression system 111, raw water can be concentrated to original 8%-10%,
When the conductivity of raw water is 1000-3000 μ S/cm, efficient reverse osmosis concentrated 111 concentrated water conductivity of compression system is up to 10000-
37500 μ S/cm mitigate the burden of evaporator 115, energy consumption needed for reducing evaporative crystallization；No setting is required sedimentation basin and with it is subsequent
Multi-stage reverse osmosis processing, shortens process flow and equipment investment, reduces resulting energy consumption and operation and maintenance cost；Together
Shi Caiyong constant pressure water supply mode, it can be ensured that recycle-water constant pressure and flow, it is easy to use.
Although the illustrative specific embodiment of the utility model is described above, in order to the art
Technical staff is it will be appreciated that the utility model, but the utility model is not limited only to the range of specific embodiment, to this technology
For the those of ordinary skill in field, as long as long as the utility model that various change is limited and determined in the attached claims
In spirit and scope, all are created using the utility model of the utility model design in the column of protection.
Claims (10)
1. a kind of electroplating wastewater zero equipment, characterized in that include:
One conditioning tank；
One raw water booster pump, the raw water booster pump are connected to the rear of the conditioning tank；
One MCR system, the MCR system are connected to the rear of the raw water booster pump；
One MCR water tank, the MCR water tank are connected to the rear of the MCR system；
One first booster water pump, first booster water pump are connected to the rear of the MCR water tank；
One resin cation demineralizer, the resin cation demineralizer are connected to the rear of first booster water pump；
One decarbonizing tower, the decarbonizing tower are connected to the rear of the resin cation demineralizer；
One efficient reverse osmosis water tank, the efficiently reverse osmosis water tank are connected to the rear of the decarbonizing tower；
One second booster water pump, second booster water pump are connected to the rear of the efficiently reverse osmosis water tank；
One cartridge filter, the cartridge filter are connected to the rear of second booster water pump；
One efficient reverse osmosis concentrated compression system, the efficiently reverse osmosis concentrated compression system are connected to the rear of the cartridge filter；
One reuse water tank, the reuse water tank are connected to the rear of the efficiently reverse osmosis concentrated compression system；
One constant pressure water supply system, the constant pressure water supply system are connected to the rear of the reuse water tank；
One concentrated water case, the concentrated water case are connected to the rear of the efficient reverse osmosis concentration service system；
One evaporator, the evaporator are connected to the rear of the concentrated water case；And
One electric-control system, the electric-control system are connect with aforementioned 15 device structure units.
2. a kind of electroplating wastewater zero equipment according to claim 1, wherein the MCR water tank includes:
One MCR produces water storage tank, and the MCR produces water storage tank and is used for water；And
One first liquid level gauge, the first liquid level gauge can provide liquid level signal and alarm signal.
3. a kind of electroplating wastewater zero equipment according to claim 1, wherein the resin cation demineralizer packet
It includes: a resin；And
One container, the container can contain the resin.
4. a kind of electroplating wastewater zero equipment according to claim 1, wherein the decarbonizing tower includes:
One water feed apparatus, the water feed apparatus material are 304 Wire wound tubes or 316 Wire wound tubes；
One filler, the filler select polyhedron empty ball, and material is ceramics or plastics；
One blower, the blower provide wind regime.
5. a kind of electroplating wastewater zero equipment according to claim 1, wherein the efficient reverse osmosis water case includes:
One raw water storage tank, the raw water storage tank are used for water storage；And
One second liquid level gauge, the second liquid level gauge can provide liquid level signal and alarm signal.
6. a kind of electroplating wastewater zero equipment according to claim 1, wherein the cartridge filter includes:
One PP cotton filter element, the filter diameter of the PP cotton filter element are 5 μm；
One filter housing, the filter housing be it is closed, the pp cotton filter core can be held；And
One pressure gauge, the pressure gauge is for detecting pressure.
7. a kind of electroplating wastewater zero equipment according to claim 1, wherein the efficiently reverse osmosis concentrated compression system packet
It includes:
One high-pressure pump, the high-pressure pump are used to provide the pressure and water of operation；
One pressurization cycle pump, the pressurization cycle pump are used for recirculated water；
One throwing device；And
One chemically-cleaning device, the chemically-cleaning device is for cleaning dirt.
8. a kind of electroplating wastewater zero equipment according to claim 1, wherein the recycle-water case includes:
One PH meter, for checking the pH value of water；
One sterilizing unit；And
One third liquid level gauge, the third liquid level gauge can provide liquid level signal and alarm signal.
9. a kind of electroplating wastewater zero equipment according to claim 1, wherein the constant pressure water supply system includes:
One water pump；
The electric machine frequency of the water pump is adjusted in one frequency converter, the frequency converter；
Flow meters, the flowmeter is for monitoring flow；
One pressure gauge；And
One transmitter, the transmitter convert electric signal for pump outlet pressure value and send the electric-control system to.
10. a kind of electroplating wastewater zero equipment according to claim 1, wherein the evaporator is used for evaporative crystallization
Processing.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109160664A (en) * | 2018-10-30 | 2019-01-08 | 江苏旭龙环境科技有限公司 | A kind of electroplating wastewater zero equipment and application method |
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