CN208747794U - High saliferous industrial wastewater precipitating divides salt Zero discharging system - Google Patents
High saliferous industrial wastewater precipitating divides salt Zero discharging system Download PDFInfo
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Abstract
The utility model discloses a kind of high saliferous industrial wastewater precipitatings to divide salt Zero discharging system comprising conditioning tank, pretreatment system, settling system and dehydration drying system.The utility model has the advantage of, the zero-emission of high slat-containing wastewater is realized instead of traditional high temperature evaporation crystallization processes using the chemical precipitation reaction carried out under normal temperature and pressure conditions, the sodium chloride of by-product high-quality, industrial blanc fixe or industry by-product gypsum simultaneously, improve by-product economic value, product qualities meet concerned countries standard requirements, and quality is good, and the market space is big, the by-product economic benefit of manufacturing enterprise is improved, 10%-40% can be improved in by-product economic benefit；Combine the advantage of high-salt wastewater processing and chemical reaction；Investing to build for evaporation and crystallization system and advanced oxidation system is greatly decreased, Zero discharging system integral device investment cost can reduce 40%-70%；Meanwhile equipment energy consumption also accordingly reduces, compared with original system, equipment energy consumption can reduce 50%-80%, and energy consumption cost reduces 30%-60%.
Description
Technical field:
The utility model relates to field of industrial waste water treatment, in particular to a kind of high saliferous industrial wastewater precipitating divides salt zero-emission
Place system.
Background technique:
Develop Chemical Industry be China's energy strategy transition only way, this be China's energy resources natural endowment status and
Energy revolution overall background is determined.Coal resources in China and water resource negative correlation, with the Shanxi of Upper-middle Reaches of The Yellow River, Shan
For west, Ningxia, 4 provinces and regions of the Inner Mongol, coal resources occupancy volume is the 67% of national total amount here, but water resource only accounts for here
The 3.85% of national water resource, therefore water resource becomes the key factor of limitation Developing Coal Chemical Industry.
In recent years, in order to break restriction of the natural water resources to Chemical Industry, China gives priority to wastewater zero discharge skill
Art is captured with the continuous of technological difficulties with advances in technology, and coal chemical industry brine waste sub-prime salt resource recycling utilizes at present
98% water resource reuse, while by-product high-quality crystal salt should may be implemented in technology.Wherein, sodium chloride crystallization purity salt meets
Refining industrial salt primes standard in GB/T5462-2015 " Nacl " standard, sulfate crystal purity salt meet GB/
I class Grade A standard of T6009-2014 " industrial anhydrous sodium sulfate ".
For coal chemical industry brine waste sub-prime salt resource recycling using in technology, the zero-emission of nanofiltration combination evaporative crystallization divides salt
Zero emission method obtains the common approval in industry because high treating effect, recycling degree are high, and process is approximately as Gao Han
After the preprocessed system 2 of salt industrial waste water and nanofiltration system 3 are handled, nanofiltration system 3 produces water and handles through producing water depth concentration systems 9
Enter sodium chloride crystallizing evaporator 6 afterwards, obtains sodium chloride；3 concentrated water of nanofiltration system enters dense after the processing of advanced oxidation system 11
The processing of water depth concentration systems 12 enters freezing and crystallizing device 13 after the processing of concentrated water depth concentration systems 12 and is handled, freezing knot
The brilliant processing of device 13 gained produces water and enters sodium chloride crystallizing evaporator 6, obtains sodium chloride, and gained concentrate enters sodium sulphate evaporation knot
Brilliant device 14, obtains sodium sulphate.But there are still following problems in the actual implementation process: 1, nanofiltration concentrated water side sulfate radical content is high,
And brine waste concentration persistently increases, causing nanofiltration concentrated water side depth to be concentrated, membranous system operating pressure is high, the rate of recovery is low, produces water water
Matter fluctuation is big, crystal salt quality is unstable etc.；2, resulting product sodium sulphate crystal salt is handled, since it is natural rich in minerals,
Itself is worth lower, the influence of transportation cost, customers' approval degree in addition, so that the market outlet of sulfate crystal salt is unsmooth,
Most of sulfate crystal salt takes the mode freely sent outside to handle；3, it needs to invest to build evaporation and crystallization system and advanced oxidation system
System, to meet the needs of wastewater zero discharge processing, whole Zero discharging system equipment investment is costly, and energy consumption is high, and operating cost is high,
And evaporation and crystallization system belongs to high-temperature high-pressure apparatus, operation risk is larger.
Utility model content:
That the purpose of this utility model is to provide a kind of equipment investments is low, the construction period is short, divides salt zero-emission product market
Good high saliferous industrial wastewater precipitating divides salt Zero discharging system.
The utility model is implemented by following technical solution: high saliferous industrial wastewater precipitating divides salt Zero discharging system comprising
Conditioning tank, pretreatment system, settling system and dehydration drying system, the outlet of the conditioning tank and the pretreatment system into
Mouth connection, the outlet of the pretreatment system is connect with the import of the sedimentation basin of the settling system；The solid of the sedimentation basin
Outlet connect with the import of the dewatering unit of the dehydration drying system, the outlet of the drying unit of the dehydration drying system and
The import of finished product storage tank connects.
Further, the pretreatment system successively include the potassium permanganate composites, it is immersion ultrafiltration system, reverse osmosis
System, ion exchange resin equipment and carbon dioxide cleaner, the outlets of the potassium permanganate composites and the immersion ultrafiltration system into
Mouthful connection, the outlet of the immersion ultrafiltration system connect with the import of the counter-infiltration system, the counter-infiltration system into
Online conductivity meter is equipped at mouthful, the concentrated water outlet of the counter-infiltration system and the import of the ion exchange resin equipment connect
It connects, the outlet of the ion exchange resin equipment is connect with the import of the carbon dioxide cleaner；The import of the counter-infiltration system and institute
It states and is also connected with concentrate shunt valve between the concentrated water outlet of counter-infiltration system, the concentrate shunt valve is equipped with concentrate by-passing valve,
The online conductivity meter is connect with controller signals, and the controller is bypassed with the counter-infiltration system, the concentrate respectively
Valve signal connection.
Further, the settling system includes the sedimentation basin, adds storehouse and controller, and the import of the sedimentation basin is set
There is online sulfate ion detector, agitating device is equipped in the sedimentation basin, the exit for adding storehouse is equipped with weighing valve,
The signal output end of the online sulfate ion detector is connect with the signal input part of the controller, the controller
Signal output end is connect with the signal input part of the weighing valve, and the signal output end of the controller also passes through delayer and institute
State the signal input part connection of agitating device.
Further, the dehydration drying system successively includes dewatering unit and drying unit, and the dewatering unit is consolidated
Body outlet connect with the import of the drying unit, the filtrate (liquid of the dewatering unit, the drying unit condensate liquid go out
Mouth is connect with the import of the conditioning tank.
It further, further include having nanofiltration system, the import of the nanofiltration system is connect with the outlet of the carbon dioxide cleaner,
The entrance of the nanofiltration system is equipped with the online chloride test instrument of nanofiltration and the online sulfate ion detector of nanofiltration, described to receive
It is also connected between the import of filter system and the outlet of the concentrated water of the nanofiltration system and separates shunt valve, set on the separation shunt valve
Have a separation by-passing valve, the online chloride test instrument of nanofiltration and the online sulfate ion detector of the nanofiltration respectively with it is described
Controller signals connection, the controller are connected with the nanofiltration system, the bypass valve signal that separates respectively.
Further, the dewatering unit is cyclone separator, band press filter dewatering machine, centrifugal filter press dewaterer, sheet frame
Any one in filter press or vacuum belt dewaterer；The drying unit is flash dryer, pneumatic drier, multistage spiral shell
Revolve any one in drying machine, Rollingscratchboarddrier or biconial rotary vacuum dryer.
Further, the dehydration drying system is vacuum dehydration drying machine, and the dewatering unit is the vacuum dehydration
The dewatering system of drying machine, the drying unit are the drying system of the vacuum dehydration drying machine.
It further, further include having depth concentration systems, outlet and the depth concentration systems of the sedimentation basin
Import connection, the depth concentration systems include high-pressure flat plate membranous system, high pressure counter-infiltration system, electrodialysis system, positive infiltration
Any one or the combination of several of them in system, MVR vapo(u)rization system, TVR vapo(u)rization system or multi-effect evaporation system, the depth are dense
The outlet of compression system is connect with the import of sodium chloride crystallizing evaporator, the sodium chloride crystallizing evaporator solid outlet and sodium chloride
The import of storage tank connects.
It further, further include having depth concentration systems, the production water out of the nanofiltration system and the depth are concentrated
The import of system connects, the depth concentration systems include high-pressure flat plate membranous system, high pressure counter-infiltration system, electrodialysis system,
Any one or the combination of several of them in positive osmosis system, MVR vapo(u)rization system, TVR vapo(u)rization system or multi-effect evaporation system, it is described
The outlet of depth concentration systems is connect with the import of sodium chloride crystallizing evaporator, the sodium chloride crystallizing evaporator solid outlet with
The import of sodium chloride storage tank connects.
The advantages of the utility model: 1, traditional high temperature is replaced using the chemical precipitation reaction that normal temperature and pressure conditions under carries out
Evaporative crystallization technique realizes the zero-emission of high slat-containing wastewater, at the same the sodium chloride of by-product high-quality, industrial blanc fixe or
Industry by-product gypsum improves by-product economic value, and product qualities meet concerned countries standard requirements, and quality is good, the market space
Greatly, the by-product economic benefit of manufacturing enterprise is improved, 10%-40% can be improved in by-product economic benefit；Combine high-salt wastewater processing
With the advantage of chemical reaction；2, investing to build for evaporation and crystallization system and advanced oxidation system is greatly decreased, Zero discharging system is integrally set
Standby investment cost can reduce 40%-70%；Meanwhile equipment energy consumption also accordingly reduces, compared with original system, equipment energy consumption can be reduced
50%-80%, energy consumption cost reduce 30%-60%.
Detailed description of the invention:
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the prior art.
Fig. 2 is the equipment connection schematic diagram that high saliferous industrial wastewater precipitating divides salt Zero discharging system.
Fig. 3 is the structural schematic diagram of settling system.
Fig. 4 is the control principle drawing that high saliferous industrial wastewater precipitating divides salt Zero discharging system.
Conditioning tank 1, pretreatment system 2, potassium permanganate composites 2-1, immersion ultrafiltration system 2-2, counter-infiltration system 2-3,
Ion exchange resin equipment 2-4, online conductivity meter 2-5, concentrate shunt valve 2-6, concentrate by-passing valve 2-7, carbon dioxide cleaner 2-8 receive
Filter system 3, separate shunt valve 3-1, separate by-passing valve 3-2, the online chloride test instrument 3-3 of nanofiltration, the online sulfate radical of nanofiltration from
Sub- detector 3-4, settling system 5, sedimentation basin 5-1 add storehouse 5-2, controller 5-3, online sulfate ion detector 5-4,
Agitating device 5-5, weighing valve 5-6, delayer 5-7, sodium chloride crystallizing evaporator 6, dehydration drying system 7, dewatering unit 7-1,
Drying unit 7-2, finished product storage tank 8, depth concentration systems 9, sodium chloride storage tank 10, advanced oxidation system 11, the concentration of concentrated water depth
System 12, freezing and crystallizing device 13, sodium sulphate crystallizing evaporator 14.
Specific embodiment:
Embodiment 1:
As in Figure 2-4, high saliferous industrial wastewater precipitating divides salt Zero discharging system comprising conditioning tank 1, pretreatment system
2, the outlet of settling system 5 and dehydration drying system 7, conditioning tank 1 is connect with the import of pretreatment system 2, high saliferous Industry Waste
Water carries out water quality and quantity adjusting through conditioning tank 1, enters pretreatment system 2 later；
Pretreatment system 2 successively include potassium permanganate composites 2-1, immersion ultrafiltration system 2-2, counter-infiltration system 2-3, from
The outlet of sub-exchange resin equipment 2-4 and carbon dioxide cleaner 2-8, conditioning tank 1 connect with the import of pretreatment system 2, i.e. conditioning tank 1
Outlet is connect with the import of potassium permanganate composites 2-1；The outlet of potassium permanganate composites 2-1 and immersion ultrafiltration system 2-2 into
Mouth connection, the outlet of immersion ultrafiltration system 2-2 are connect with the import of counter-infiltration system 2-3, the entrance of counter-infiltration system 2-3
Equipped with online conductivity meter 2-5, it is also connected between the import of counter-infiltration system 2-3 and the concentrated water outlet of counter-infiltration system 2-3
Concentrate shunt valve 2-6, concentrate shunt valve 2-6 are equipped with concentrate by-passing valve 2-7, online conductivity meter 2-5 and controller 5-3 signal
Connection, controller 5-3 are connect with counter-infiltration system 2-3, concentrate by-passing valve 2-7 signal respectively；The concentrated water of counter-infiltration system 2-3 goes out
Mouth is connect with the import of ion exchange resin equipment 2-4；When the production water of immersion ultrafiltration system 2-2 is through online conductivity meter 2-5
When detecting conductivity < 20000us/cm, online conductivity meter 2-5 sends signal to controller 5-3, and controller 5-3 is respectively to anti-
Osmosis system 2-3, concentrate by-passing valve 2-7 issue signal, and concentrate by-passing valve 2-7 is closed, counter-infiltration system 2-3 starts, immersion
The production water of ultrafiltration system 2-2 enters ion exchange resin equipment 2-4 after counter-infiltration system 2-3 concentration；When immersion ultrafiltration
When the production water of system 2-2 detects conductivity >=20000us/cm through online conductivity meter 2-5, online conductivity meter 2-5 is to control
Device 5-3 sends signal, and controller 5-3 issues signal, online conductivity meter to counter-infiltration system 2-3, concentrate by-passing valve 2-7 respectively
2-5 issues signal, concentrate concentrate by-passing valve 2-7 starting, counter-infiltration system to counter-infiltration system 2-3, concentrate by-passing valve 2-7 respectively
2-3 is closed, and the concentrated water outlet of counter-infiltration system 2-3 is connect with the import of ion exchange resin equipment 2-4, immersion ultrafiltration system
The concentrated water of 2-2 is directly entered ion exchange resin equipment 2-4；The outlet of ion exchange resin equipment 2-4 and carbon dioxide cleaner 2-8 into
Mouth connection, the concentrated water of ion exchange resin equipment 2-4, which enters in carbon dioxide cleaner 2-8, carries out drop basicity processing, obtains low alkalinity waste water；
It further includes having nanofiltration system 3, and the import of nanofiltration system 3 is connect with the outlet of carbon dioxide cleaner 2-8, nanofiltration system 3
Entrance be equipped with the online chloride test instrument 3-3 of the nanofiltration and online sulfate ion detector 3-4 of nanofiltration, nanofiltration system 3 into
It is also connected between mouth and the outlet of the concentrated water of nanofiltration system 3 and separates shunt valve 3-1, separation shunt valve 3-1 is equipped with separation and bypasses
Valve 3-2, the online chloride test instrument 3-3 of nanofiltration and the online sulfate ion detector 3-4 of nanofiltration respectively with controller 5-3 signal
Connection, controller 5-3 respectively with nanofiltration system 3, separate by-passing valve 3-2 signal connection.The online chloride test instrument 3-3 of nanofiltration,
The data that the online sulfate ion detector 3-4 of nanofiltration is detected are sent to controller 5-3 and are judged, when controller 5-3 sentences
Chloride ion and when sulfate ion molar ratio > 3:1 in the water inlet of disconnected nanofiltration system 3, controller 5-3 is to nanofiltration system 3, separation
By-passing valve 3-2 issues signal, and separation by-passing valve 3-2 is closed, nanofiltration system 3 starts, and the water outlet of carbon dioxide cleaner 2-8 enters nanofiltration system
3；Nanofiltration system 3 is mainly that the water outlet to carbon dioxide cleaner 2-8 carries out dividing salt for the first time, forms the nanofiltration for mainly containing monovalent salt sodium chloride
Water and simultaneously the nanofiltration concentrated water containing monovalent salt sodium chloride and divalent salts sodium sulphate are produced, nanofiltration concentrated water enters follow-up system processing；
When chloride ion in the water inlet that controller 5-3 judges nanofiltration system 3 and when sulfate ion molar ratio≤3:1, controller 5-3 is to receiving
Filter system 3, separation by-passing valve 3-2 issue signal, and separation by-passing valve 3-2 starting, nanofiltration system 3 are closed, the water outlet of carbon dioxide cleaner 2-8
It is directly entered follow-up system processing；
The outlet of pretreatment system 2 is connect with the import of the sedimentation basin 5-1 of settling system 5；Settling system 5 includes sedimentation basin
5-1, storehouse 5-2 and controller 5-3 are added, the import of sedimentation basin 5-1 is equipped with online sulfate ion detector 5-4, sedimentation basin 5-1
Interior to be equipped with agitating device 5-5, the exit for adding storehouse 5-2 is equipped with weighing valve 5-6, the letter of online sulfate ion detector 5-4
Number output end is connect with the signal input part of controller 5-3, and the signal of the signal output end and weighing valve 5-6 of controller 5-3 is defeated
Enter end connection, the signal output end of controller 5-3 also passes through delayer 5-7 and connect with the signal input part of agitating device 5-5；?
Line sulfate ion detector 5-4 detects the sulfate ion concentration of sedimentation basin 5-1 water inlet, and will test result and be sent to control
Device 5-3 after controller 5-3 receives sulfate ion concentration testing result, sends valve opening amount signal to weighing valve 5-6, throws
The medicament in the 5-2 of storehouse is added to be added to sedimentation basin 5-1, controller 5-3 sends enabling signal, delay to delayer 5-7 simultaneously
Device 5-7 sends enabling signal to agitating device 5-5 and starts timing, agitating device 5-5 starting, to the liquid in sedimentation basin 5-1
It is stirred, also ensures that waste water is sufficiently reacted with barium chloride；Delayer 5-7 timing terminates backward, to stop to agitating device 5-5 transmission
Stop signal, agitating device 5-5 stop working, the mixing liquid settle and separate in sedimentation basin 5-1, the resulting solid of settle and separate into
Enter dehydration drying system 7, supernatant, which enters in depth concentration systems 9, to be handled；
The solid outlet of sedimentation basin 5-1 is connect with the import of the dewatering unit 7-1 of dehydration drying system 7, dehydration and drying system
The outlet of the drying unit 7-2 of system 7 is connect with the import of finished product storage tank 8；Dehydration drying system 7 successively includes dewatering unit 7-1
It is connect with the solid outlet of drying unit 7-2, dewatering unit 7-1 with the import of drying unit 7-2, the filtrate of dewatering unit 7-1
It exports, the condensate outlet of drying unit 7-2 is connect with the import of conditioning tank 1；Dewatering unit 7-1 is cyclone separator, band
Any one in formula filter pressing dehydrator, centrifugal filter press dewaterer, plate and frame filter press or vacuum belt dewaterer；In the present embodiment
In, dewatering unit 7-1 is plate and frame filter press；Drying unit 7-2 be flash dryer, pneumatic drier, multiple coil drying machine,
Any one in Rollingscratchboarddrier or biconial rotary vacuum dryer；In the present embodiment, drying unit 7-2 is to dodge
Steam drying machine；
It further includes having depth concentration systems 9, the supernatant outlet of sedimentation basin 5-1 and the production water out point of nanofiltration system 3
It is not connect with the import of depth concentration systems 9, depth concentration systems 9 include high-pressure flat plate membranous system, high pressure counter-infiltration system 2-
3, any one in electrodialysis system, positive osmosis system, MVR vapo(u)rization system, TVR vapo(u)rization system or multi-effect evaporation system or several
The combination of kind, in the present embodiment, 9 electrodialysis system of depth concentration systems；The outlet of depth concentration systems 9 and sodium chloride evaporate
The import of crystallizer 6 connects, and 6 solid outlet of sodium chloride crystallizing evaporator is connect with the import of sodium chloride storage tank 10.
In the present embodiment, traditional high temperature evaporation knot is replaced using the chemical precipitation reaction carried out under normal temperature and pressure conditions
Brilliant technique realizes the zero-emission of high slat-containing wastewater, while the sodium chloride of by-product high-quality, industrial blanc fixe or industry are secondary
Gypsum is produced, by-product economic value is improved, product qualities meet concerned countries standard requirements, and quality is good, and the market space is big, improve
10%-40% can be improved in the by-product economic benefit of manufacturing enterprise, by-product economic benefit；It is anti-with chemical industry to combine high-salt wastewater processing
The advantage answered；Investing to build for evaporation and crystallization system and advanced oxidation system, Zero discharging system integral device investment cost is greatly decreased
40%-70% can be reduced；Meanwhile equipment energy consumption also accordingly reduces, compared with original system, equipment energy consumption can reduce 50%-80%,
Energy consumption cost reduces 30%-60%.
Embodiment 2:
With the prior art described in background technology (attached drawing 1) for control group, with the embodiment of the present invention 1 for test group 1, with
The embodiment of the present invention 2 is test group 2, is compared as follows:
One, product quality compares
1, composition detection is carried out to the industrial blanc fixe of 1 gained of test group, shown in testing result table 1.
The industrial blanc fixe composition detection result of table 1
As shown in Table 1, the indices of the industrial blanc fixe of 1 gained of test group are all satisfied and are better than GB/T 2899-
Grade A standard in 2008 (industrial blanc fixes), can be recycled directly as the raw material of industry.Output in embodiment 1
1 ton of industrial blanc fixe needs to put into 0.893 ton of barium chloride, calculates by market price, and profit is 1000-1200 yuan/ton.
2, composition detection is carried out to 2 gained industry by-product gypsum of test group, shown in testing result table 2.
2 industry by-product gypsum composition detection result of table
As shown in Table 2,2 gained industry by-product gypsum of test group is suitable for manufacture cement, construction material, reduces soil
Basicity and improvement soil function, indices are all satisfied its purposes, can be recycled directly as the raw material of industry.Implement
1 ton of industrial gypsum of output needs to put into 0.816 ton of calcium chloride in example 2, calculates by market price, and profit is 750-950 yuan/ton.
From the above results, wastewater treatment product is changed into economic value by the lower sulfate crystal salt of economic value
High industrial blanc fixe or industry by-product gypsum, industrial blanc fixe or industry by-product gypsum quality meet concerned countries
Standard requirements, quality is good, and the market space is big, improves the by-product economic benefit of manufacturing enterprise, and 10%- can be improved in by-product economic benefit
40%；
Two, equipment builds the comparison of throwing expense
The equipment and cost of equipment that control group and test group 1, test group 2 are invested to build needed for running are as shown in table 3.
Table 3 invests to build equipment and cost of equipment comparison
| Group | System equipment investment cost (yuan/ton water) |
| Control group | 5000-10000 |
| Test group 1 | 2000-6000 |
| Test group 2 | 2000-6000 |
| Test group 3 | 2000-5000 |
As shown in Table 3, the equipment of test group 1, test group 2 and test group 3 invests to build expense significantly lower than control group, mainly
Since investing to build for evaporation and crystallization system and advanced oxidation system, zero-emission is greatly decreased in test group 1, test group 2 and test group 3
System entirety investment cost can reduce 40%-70%.
Three, system operation energy consumption compares
Control group and test group 1,2 operation energy consumption cost of test group are as shown in table 4.
Table 4 invests to build equipment and cost of equipment comparison
| Group | Control group | Test group 1 | Test group 2 | Test group 3 |
| Energy consumption (Kwh/ tons of water) | 10-25 | 6-15 | 6-15 | 7-13 |
| Operating cost (yuan/ton) | 8-16 | 5-10 | 6-9 | 5-10 |
As shown in Table 4, the operation energy consumption of test group 1, test group 2 and test group 3 be significantly lower than control group, mainly by
In, investing to build for a large amount of evaporation and crystallization system and advanced oxidation system is greatly decreased in test group 1, test group 2 and test group 3, if
Standby energy consumption can reduce 50-80%, and operating cost reduces 30-60%.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (9)
1. high saliferous industrial wastewater precipitating divides salt Zero discharging system, which is characterized in that it includes conditioning tank, pretreatment system, sinks
The outlet of shallow lake system and dehydration drying system, the conditioning tank is connect with the import of the pretreatment system, the pretreatment system
The outlet of system is connect with the import of the sedimentation basin of the settling system；The solid outlet of the sedimentation basin and the dehydration and drying are
The import of the dewatering unit of system connects, and the outlet of the drying unit of the dehydration drying system and the import of finished product storage tank connect.
2. high saliferous industrial wastewater precipitating according to claim 1 divides salt Zero discharging system, which is characterized in that the pre- place
Reason system successively includes potassium permanganate composites, immersion ultrafiltration system, counter-infiltration system, ion exchange resin equipment and removes carbon
The outlet of device, the potassium permanganate composites is connect with the import of the immersion ultrafiltration system, the immersion ultrafiltration system
Outlet is connect with the import of the counter-infiltration system, and the entrance of the counter-infiltration system is equipped with online conductivity meter, described anti-
The concentrated water outlet of osmosis system is connect with the import of the ion exchange resin equipment, the outlet of the ion exchange resin equipment
It is connect with the import of the carbon dioxide cleaner；The concentrated water of the import of the counter-infiltration system and the counter-infiltration system also connects between outlet
It is connected to concentrate shunt valve, the concentrate shunt valve is equipped with concentrate by-passing valve, and the online conductivity meter and controller signals connect
It connects, the controller is connect with the counter-infiltration system, concentrate bypass valve signal respectively.
3. high saliferous industrial wastewater precipitating according to claim 1 divides salt Zero discharging system, which is characterized in that the precipitating
System includes the sedimentation basin, adds storehouse and controller, and the import of the sedimentation basin is equipped with online sulfate ion detector, institute
It states and is equipped with agitating device in sedimentation basin, the exit for adding storehouse is equipped with weighing valve, the online sulfate ion detector
Signal output end connect with the signal input part of the controller, the signal output end of the controller and the weighing valve
Signal input part connection, the signal output end of the controller also passes through delayer and the signal input part of the agitating device connects
It connects.
4. high saliferous industrial wastewater precipitating according to claim 1 divides salt Zero discharging system, which is characterized in that the dehydration
Drying system successively includes dewatering unit and drying unit, the import of the solid outlet of the dewatering unit and the drying unit
Connection, the filtrate (liquid of the dewatering unit, the drying unit condensate outlet connect with the import of the conditioning tank.
5. high saliferous industrial wastewater precipitating according to claim 2 divides salt Zero discharging system, which is characterized in that it further includes
There is nanofiltration system, the import of the nanofiltration system is connect with the outlet of the carbon dioxide cleaner, and the entrance of the nanofiltration system is equipped with
The online chloride test instrument of nanofiltration and the online sulfate ion detector of nanofiltration, the import of the nanofiltration system and the nanofiltration system
Separation shunt valve is also connected between the concentrated water outlet of system, the separation shunt valve is equipped with separation by-passing valve, and the nanofiltration exists
Line chloride test instrument and the online sulfate ion detector of the nanofiltration are connected with the controller in a signal way. respectively, the control
Device is connected with the nanofiltration system, the bypass valve signal that separates respectively.
6. high saliferous industrial wastewater precipitating according to claim 4 divides salt Zero discharging system, which is characterized in that the dehydration
Unit is in cyclone separator, band press filter dewatering machine, centrifugal filter press dewaterer, plate and frame filter press or vacuum belt dewaterer
Any one；The drying unit be flash dryer, pneumatic drier, multiple coil drying machine, Rollingscratchboarddrier or
Any one in biconial rotary vacuum dryer.
7. high saliferous industrial wastewater precipitating according to claim 4 divides salt Zero discharging system, which is characterized in that the dehydration
Drying system is vacuum dehydration drying machine, and the dewatering unit is the dewatering system of the vacuum dehydration drying machine, the drying
Unit is the drying system of the vacuum dehydration drying machine.
8. high saliferous industrial wastewater precipitating according to claim 1 divides salt Zero discharging system, which is characterized in that it further includes
There are depth concentration systems, the outlet of the sedimentation basin is connect with the import of the depth concentration systems, the depth concentration systems
Including high-pressure flat plate membranous system, high pressure counter-infiltration system, electrodialysis system, positive osmosis system, MVR vapo(u)rization system, TVR evaporation system
Any one or the combination of several of them in system or multi-effect evaporation system, the outlet of the depth concentration systems and sodium chloride evaporation are tied
The import of brilliant device connects, and the sodium chloride crystallizing evaporator solid outlet is connect with the import of sodium chloride storage tank.
9. high saliferous industrial wastewater precipitating according to claim 5 divides salt Zero discharging system, which is characterized in that it further includes
There are depth concentration systems, the production water out of the nanofiltration system is connect with the import of the depth concentration systems, and the depth is dense
Compression system includes high-pressure flat plate membranous system, high pressure counter-infiltration system, electrodialysis system, positive osmosis system, MVR vapo(u)rization system, TVR
Any one or the combination of several of them in vapo(u)rization system or multi-effect evaporation system, the outlet of the depth concentration systems and sodium chloride
The import of crystallizing evaporator connects, and the sodium chloride crystallizing evaporator solid outlet is connect with the import of sodium chloride storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820808975.0U CN208747794U (en) | 2018-05-28 | 2018-05-28 | High saliferous industrial wastewater precipitating divides salt Zero discharging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201820808975.0U CN208747794U (en) | 2018-05-28 | 2018-05-28 | High saliferous industrial wastewater precipitating divides salt Zero discharging system |
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