CN205999176U - A kind of viscose rayon manufactures the processing system of the waste water that demineralized water produces in producing - Google Patents
A kind of viscose rayon manufactures the processing system of the waste water that demineralized water produces in producing Download PDFInfo
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- CN205999176U CN205999176U CN201620948783.0U CN201620948783U CN205999176U CN 205999176 U CN205999176 U CN 205999176U CN 201620948783 U CN201620948783 U CN 201620948783U CN 205999176 U CN205999176 U CN 205999176U
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Abstract
This utility model is related to manufacture the processing system of the waste water that demineralized water produces during a kind of viscose rayon produces, and belongs to industrial waste water treatment.This utility model includes cation and anion exchange device, magnesium hydrate precipitate pond, calcium sulfate precipitation pond, sodium chloride collecting pit and the sodium sulfate dissolving tank being sequentially connected, and the other equipment with its supporting connection.This utility model solves the problems, such as cannot process well in prior art and manufactures the waste water that demineralized water produces, a kind of viscose rayon is provided in producing, to manufacture the processing system of the waste water that demineralized water produces, it is simple that this system is related to equipment, processing ease, low cost, reasonable in design, waste water can be processed easier, efficiently at low cost, reclaim sodium chloride in waste water, magnesium hydroxide and calcium sulfate.
Description
Technical field
This utility model is related to a kind of processing system of waste water, and more specifically, it is fine that this utility model is related to a kind of viscose glue
Dimension manufactures the processing system of the waste water that demineralized water produces in producing, belong to industrial waste water treatment.
Background technology
Demineralized water（desalted water）, refer to using various water treatment technologies, remove float, colloid and inorganic
After the impurities in water such as cation, anion, obtained product water.It is dry that demineralized water is not meant in water that salt is entirely removed
Only, due to the consideration due to technical elements and on water producing cost, according to different purposes it is allowed to demineralized water contain micro miscellaneous
Matter.Desalination impurities in water is fewer, and water purity is higher.
In the technique producing demineralized water, ion-exchange unit is a kind of conventional mode.But, industrial demineralized water, soft
In water preparation process, resin transfer moulding need to being carried out using acid, alkali, salt in a large number, a large amount of industrial wastewaters being produced during displacement, so that causing
Environmental pollution.And contain a large amount of calcium, magnesium plasma in resin substitution waste water, to environment.
State Intellectual Property Office discloses Publication No. CN105439346A in 2016.03.30, entitled " a kind of
The invention of high slat-containing wastewater autoprecipitation preprocess method ", this inventive step is as follows：1) add appropriate dispersion in high slat-containing wastewater
Agent, then enters first time film separation system by high-pressure pump and processes；2) collect the concentrated water of film separation system, add a small amount of demagging
Agent and composite flocculation agent make concentrated water take off the raw precipitation of stable yields；3) concentrated water of film separation system carries out solid-liquid using High-rate sedimentation technology and divides
From supernatant is returned Halite water and is again introduced into film separation system process together with water inlet, forms circulation, precipitate is CaSO4、
Mg(OH)2Based on product, as desulfurizing agent recycle；4) film separation system product water salt is divided into monovalent ion, salinity fall
Low, carry out evaporation process of classifying, fresh water reuse after membrance concentration, the salt based on monovalence NaCl, KCl recycles.
State Intellectual Property Office discloses Publication No. CN102115280A in 2016.05.11, entitled " a kind of
The invention of the strengthening depth concentration systems of high saliferous industrial wastewater and its technique ", this invention belongs to water treatment field, and height contains salt worker
The adjusted pond of industry waste water adjusts-softens sedimentation tank precipitation-V-type filter-- one section of reverse osmosis unit of ultrafiltration apparatus intensive filtration
Concentration-Di goes hardness-nanofiltration device to divide salt；Wherein：Nanofiltration device concentrated water-frequently pole-reversing electroosmosis device
Concentrate, its product water-advanced oxidation device oxidation-always produce water tank, its concentrated water-freezing and crystallizing system crystallization-sulfate crystal；Nanofiltration
Device produces water-two-stage nitration reverse osmosis unit concentration-frequently pole-reversing electroosmosis device reconcentration, and its product water-advanced oxidation device oxidation-
Total product water tank, its concentrated water-MVR evaporated crystallization device crystallization-sodium chloride crystallizes；Beneficial effect：Effectively reduce high-voltage operation
The potential safety hazard brought；The high problem of COD content after effectively solving strong brine high enrichment, improves the purity of crystal salt, improves
The use value of crystal salt；This system automation degree is high, simple to operate, operating pressure is low, stable, crystallization purity salt
High, the low feature of operating cost.
State Intellectual Property Office discloses Publication No. CN105565569A in 2011.07.06, entitled " a kind of
Remove the processing method of heavy metals in chelating resin tower wastewater during brine refining " invention, this Invention Announce one kind removes desalination
In crystal's system, the processing method of chelate resin tower heavy metal in waste water, mainly comprises the following steps：A. chelate resin tower waste water is delivered to storage
Flow container 1, is heated to 60～70 DEG C；B. waste water, from flowing into alkaline reaction groove, adds sodium hydrate aqueous solution to adjust pH to 9～12
Afterwards, sodium sulfide solution, aqueous sodium carbonate are sequentially added, respectively stirring reaction 10～15 minutes；C. reaction completes postprecipitation 2
～3 hours, supernatant sent filter plant, and mud send primary refined brine sludge treating system；D. the supernatant effluent after filtering
Be delivered to fluid reservoir 2, add aqueous hydrochloric acid solution to adjust pH to 6.0～7.5, backward fluid reservoir 2 be passed through compressed air, waste gas row
Sky, water outlet can be discharged as salt dissolving Water circulation or directly.The present invention can effectively remove various heavy in chelate resin tower waste water
Metal, effluent quality is fully achieved discharge water quality standard.
There is problems with above-mentioned prior art：
1st, during viscose rayon produces, the waste water producing demineralized water generation for ion exchange there are currently no good processing system
System；
2nd, existing processing system cannot reclaim and recycle sodium chloride.Also magnesium hydroxide and sulphuric acid cannot be separately recovered
Calcium；
3rd, processing system of the prior art is complicated, high cost.
Utility model content
This utility model aims to solve the problem that and cannot process the problem manufacturing the waste water that demineralized water produces in prior art well,
A kind of viscose rayon is provided in producing, to manufacture the processing system of the waste water that demineralized water produces, can be easier, efficient, inexpensive
Ground processes waste water, reclaims sodium chloride in waste water, magnesium hydroxide and calcium sulfate.
In order to realize above-mentioned utility model purpose, its specific technical scheme is as follows：
A kind of viscose rayon manufacture in producing the waste water that demineralized water produces processing system it is characterised in that：Including successively
Cation and anion exchange device, magnesium hydrate precipitate pond, calcium sulfate precipitation pond, sodium chloride collecting pit and the sodium sulfate dissolving tank connecting；
Described sodium sulfate dissolving tank is connected with described calcium sulfate precipitation pond again；Described magnesium hydrate precipitate pond is also connected with the first hydrogen in turn
Magnesium oxide seperator, magnesium hydroxide flusher, the second magnesium hydroxide seperator and magnesium hydroxide storing unit；Described calcium sulfate
Sedimentation tank is also connected with the first calcium sulfate seperator, calcium sulfate flusher, the second calcium sulfate seperator and calcium sulfate in turn and deposits
Put device；Described sodium chloride collecting pit is also connected with described cation and anion exchange device.
This utility model is preferred, described first magnesium hydroxide seperator, the second magnesium hydroxide seperator, the first calcium sulfate
Seperator and the second calcium sulfate seperator are all butterfly centrifugal machine.
Preferably, described magnesium hydroxide flusher and described calcium sulfate flusher are each via independence for this utility model
Pipeline merge into a pipeline and be connected with described sodium chloride collecting pit.
Preferably, the sodium sulfate in described sodium sulfate dissolving tank is derived from for producing the acid bath of viscose rayon this utility model
In sodium sulfate.
This utility model preferably, is additionally provided with filtration between described magnesium hydrate precipitate pond and described calcium sulfate precipitation pond
Device.
This utility model preferably, is additionally provided with filtration dress between described calcium sulfate precipitation pond and described sodium chloride collecting pit
Put.
This utility model preferably, also sets between described second magnesium hydroxide seperator and described magnesium hydroxide storing unit
It is equipped with drying unit.
This utility model preferably, also sets between described second calcium sulfate seperator and described calcium sulfate storing unit successively
It is equipped with intensification boiling device, quick cooler and defecator.
This utility model preferably, is additionally provided with concentration between described sodium chloride collecting pit and described cation and anion exchange device
Adjusting means.
The Advantageous Effects that this utility model brings：
1st, this utility model solves the problems, such as cannot process well in prior art and manufactures the waste water that demineralized water produces,
A kind of viscose rayon is provided in producing, to manufacture the processing system of the waste water that demineralized water produces, this system is related to equipment simply, operation
Easily, low cost, reasonable in design, waste water, the sodium chloride in recovery waste water, hydrogen can be processed easier, efficiently at low cost
Magnesium oxide and calcium sulfate.
2nd, adopt system of the present utility model, averagely can reduce acid, alkali, salt regenerative wastewater discharge about 1300m daily3, often
Year can reduce about 2100 tons of Nacl amount of purchase, reduces 97.6 ten thousand yuan of cost input；The ion extraction discarded in industrial wastewater is returned
With the raw materials of industry such as high-quality calcium sulfate, magnesium hydroxide and sodium chloride can be efficiently generated.
3rd, preferably, described magnesium hydroxide flusher and described calcium sulfate flusher are each via only for this utility model
Vertical pipeline is merged into a pipeline and is connected with described sodium chloride collecting pit.Above-mentioned setting can will contain sodium hydroxide and chlorination
The flushing water of sodium introduces sodium chloride collecting pit, collects more sodium chloride, sodium hydroxide can also recycle, cost-effective.
This utility model is preferred, sulphuric acid in the acid bath for producing viscose rayon for the sodium sulfate in described sodium sulfate dissolving tank
Sodium.Sodium sulfate in the acid bath being produced due to acid station is acidity, and flushing water makes sodium chloride molten after entering sodium chloride collecting pit
The pH value of liquid is higher, so can circulate dissolving sodium sulfate, effectively reduces the input of sodium hydroxide in technique precipitation process.Separately
Outward, produce the sodium sulfate in acid bath using acid station, be effectively reduced storage capacity and the processing cost of sodium sulfate.
4th, this utility model preferably, was additionally provided between described magnesium hydrate precipitate pond and described calcium sulfate precipitation pond
Filter device.This utility model preferably, is additionally provided with filtration dress between described calcium sulfate precipitation pond and described sodium chloride collecting pit
Put.This utility model preferably, is additionally provided between described second magnesium hydroxide seperator and described magnesium hydroxide storing unit
Drying unit.This utility model is preferred, between described second calcium sulfate seperator and described calcium sulfate storing unit also successively
It is provided with intensification boiling device, quick cooler and defecator.This utility model preferably, described sodium chloride collecting pit and described
It is additionally provided with concentration adjusting device between cation and anion exchange device.The addition of above-mentioned preferred embodiment, can be more efficient, high-quality
Amount, stably recovery magnesium hydroxide, calcium sulfate and sodium chloride.
Brief description
Fig. 1 is the device connection diagram of this utility model system.
Reference：1 is cation and anion exchange device, 2 is magnesium hydrate precipitate pond, 3 is calcium sulfate precipitation pond, 4 is chlorination
Sodium collecting pit, 5 be sodium sulfate dissolving tank, 6 be the first magnesium hydroxide seperator, 7 be magnesium hydroxide flusher, 8 be the second hydrogen
Magnesium oxide seperator, 9 be magnesium hydroxide storing unit, 10 be the first calcium sulfate seperator, 11 be calcium sulfate flusher, 12 be
Second calcium sulfate seperator, 13 be calcium sulfate storing unit, 14 be concentration adjusting device.
Specific embodiment
Embodiment 1
A kind of viscose rayon manufactures the processing system of the waste water that demineralized water produces in producing, including the negative and positive being sequentially connected from
Sub- exchanger 1, magnesium hydrate precipitate pond 2, calcium sulfate precipitation pond 3, sodium chloride collecting pit 4 and sodium sulfate dissolving tank 5；Described sulphuric acid
Sodium dissolving tank 5 is connected with described calcium sulfate precipitation pond 3 again；Described magnesium hydrate precipitate pond 2 is also connected with the first hydroxide in turn
Magnesium seperator 6, magnesium hydroxide flusher 7, the second magnesium hydroxide seperator 8 and magnesium hydroxide storing unit 9；Described calcium sulfate
Sedimentation tank 3 is also connected with the first calcium sulfate seperator 10, calcium sulfate flusher 11, the second calcium sulfate seperator 12 and sulfur in turn
Sour calcium storing unit 13；Described sodium chloride collecting pit 4 is also connected with described cation and anion exchange device 1.
Said system can adopt following handling process：
A, recovery magnesium hydroxide
Enter magnesium hydrate precipitate pond for manufacturing the waste water in the cation and anion exchange device of demineralized water, sink to magnesium hydroxide
Add sodium hydroxide in the pond of shallow lake, obtain magnesium oxide slurry, magnesium oxide slurry, through separating, rinsing and separate again, obtains
To magnesium hydroxide solid product；
B, recovery calcium sulfate
The mother solution containing calcium chloride and sodium chloride in magnesium hydrate precipitate pond enters calcium sulfate precipitation pond, sulfur through filtering
Metabisulfite solution in sour sodium dissolving tank enters calcium sulfate precipitation pond, agitated mixing, then divides through separation, flushing and again
From, obtain calcium sulphate solid product, and by calcium sulphate solid product through heat up boiling, quickly cooling and to be filtrated to get calcium sulfate brilliant
Palpus；
C, recovery sodium chloride
The mother solution containing sodium chloride in calcium sulfate precipitation pond enters sodium chloride collecting pit collection sodium chloride through filtering, so
Enter sodium sulfate dissolving tank afterwards；The sodium chloride regenerated liquid collected in sodium chloride collecting pit enters cation and anion exchange device and is reclaimed
Use.
Sodium hydroxide adjustment pH value is added to be 11 in the described pond to magnesium hydrate precipitate；Containing in described calcium sulfate precipitation pond
It is 8-11 that the mother solution having sodium chloride adjusts pH value.
In step C, the sodium chloride regenerated liquid adjustment concentration collected in described sodium chloride collecting pit is 4.5-10%, pH value
Enter cation and anion exchange device after being adjusted to 7-9 to carry out reclaiming use.
In step A and step B, the reaction temperature in described magnesium hydrate precipitate pond and described calcium sulfate precipitation pond controls
For 14-40 DEG C.
Embodiment 2
A kind of viscose rayon manufactures the processing system of the waste water that demineralized water produces in producing, including the negative and positive being sequentially connected from
Sub- exchanger 1, magnesium hydrate precipitate pond 2, calcium sulfate precipitation pond 3, sodium chloride collecting pit 4 and sodium sulfate dissolving tank 5；Described sulphuric acid
Sodium dissolving tank 5 is connected with described calcium sulfate precipitation pond 3 again；Described magnesium hydrate precipitate pond 2 is also connected with the first hydroxide in turn
Magnesium seperator 6, magnesium hydroxide flusher 7, the second magnesium hydroxide seperator 8 and magnesium hydroxide storing unit 9；Described calcium sulfate
Sedimentation tank 3 is also connected with the first calcium sulfate seperator 10, calcium sulfate flusher 11, the second calcium sulfate seperator 12 and sulfur in turn
Sour calcium storing unit 13；Described sodium chloride collecting pit 4 is also connected with described cation and anion exchange device 1.
Described first magnesium hydroxide seperator 6, the second magnesium hydroxide seperator 8, the first calcium sulfate seperator 10 and second
Calcium sulfate seperator 12 is all butterfly centrifugal machine.
Embodiment 3
A kind of viscose rayon manufactures the processing system of the waste water that demineralized water produces in producing, including the negative and positive being sequentially connected from
Sub- exchanger 1, magnesium hydrate precipitate pond 2, calcium sulfate precipitation pond 3, sodium chloride collecting pit 4 and sodium sulfate dissolving tank 5；Described sulphuric acid
Sodium dissolving tank 5 is connected with described calcium sulfate precipitation pond 3 again；Described magnesium hydrate precipitate pond 2 is also connected with the first hydroxide in turn
Magnesium seperator 6, magnesium hydroxide flusher 7, the second magnesium hydroxide seperator 8 and magnesium hydroxide storing unit 9；Described calcium sulfate
Sedimentation tank 3 is also connected with the first calcium sulfate seperator 10, calcium sulfate flusher 11, the second calcium sulfate seperator 12 and sulfur in turn
Sour calcium storing unit 13；Described sodium chloride collecting pit 4 is also connected with described cation and anion exchange device 1.
Preferably, described magnesium hydroxide flusher 7 and described calcium sulfate flusher 11 are each via independent pipeline
Merge into a pipeline to be connected with described sodium chloride collecting pit 4.
Further, the sodium sulfate in described sodium sulfate dissolving tank 5 is derived from the acid bath for producing viscose rayon
Sodium sulfate.
Embodiment 4
A kind of viscose rayon manufactures the processing system of the waste water that demineralized water produces in producing, including the negative and positive being sequentially connected from
Sub- exchanger 1, magnesium hydrate precipitate pond 2, calcium sulfate precipitation pond 3, sodium chloride collecting pit 4 and sodium sulfate dissolving tank 5；Described sulphuric acid
Sodium dissolving tank 5 is connected with described calcium sulfate precipitation pond 3 again；Described magnesium hydrate precipitate pond 2 is also connected with the first hydroxide in turn
Magnesium seperator 6, magnesium hydroxide flusher 7, the second magnesium hydroxide seperator 8 and magnesium hydroxide storing unit 9；Described calcium sulfate
Sedimentation tank 3 is also connected with the first calcium sulfate seperator 10, calcium sulfate flusher 11, the second calcium sulfate seperator 12 and sulfur in turn
Sour calcium storing unit 13；Described sodium chloride collecting pit 4 is also connected with described cation and anion exchange device 1.
Preferably, it is additionally provided with defecator between described magnesium hydrate precipitate pond 2 and described calcium sulfate precipitation pond 3.
Preferably or further, it is additionally provided between described calcium sulfate precipitation pond 3 and described sodium chloride collecting pit 4
Defecator.
Embodiment 5
A kind of viscose rayon manufactures the processing system of the waste water that demineralized water produces in producing, including the negative and positive being sequentially connected from
Sub- exchanger 1, magnesium hydrate precipitate pond 2, calcium sulfate precipitation pond 3, sodium chloride collecting pit 4 and sodium sulfate dissolving tank 5；Described sulphuric acid
Sodium dissolving tank 5 is connected with described calcium sulfate precipitation pond 3 again；Described magnesium hydrate precipitate pond 2 is also connected with the first hydroxide in turn
Magnesium seperator 6, magnesium hydroxide flusher 7, the second magnesium hydroxide seperator 8 and magnesium hydroxide storing unit 9；Described calcium sulfate
Sedimentation tank 3 is also connected with the first calcium sulfate seperator 10, calcium sulfate flusher 11, the second calcium sulfate seperator 12 and sulfur in turn
Sour calcium storing unit 13；Described sodium chloride collecting pit 4 is also connected with described cation and anion exchange device 1.
Preferably, it is additionally provided with drying between described second magnesium hydroxide seperator 8 and described magnesium hydroxide storing unit 9
Device.
Preferably or further, between described second calcium sulfate seperator 12 and described calcium sulfate storing unit 13
Also it is disposed with intensification boiling device, quick cooler and defecator.
Embodiment 6
A kind of viscose rayon manufactures the processing system of the waste water that demineralized water produces in producing, including the negative and positive being sequentially connected from
Sub- exchanger 1, magnesium hydrate precipitate pond 2, calcium sulfate precipitation pond 3, sodium chloride collecting pit 4 and sodium sulfate dissolving tank 5；Described sulphuric acid
Sodium dissolving tank 5 is connected with described calcium sulfate precipitation pond 3 again；Described magnesium hydrate precipitate pond 2 is also connected with the first hydroxide in turn
Magnesium seperator 6, magnesium hydroxide flusher 7, the second magnesium hydroxide seperator 8 and magnesium hydroxide storing unit 9；Described calcium sulfate
Sedimentation tank 3 is also connected with the first calcium sulfate seperator 10, calcium sulfate flusher 11, the second calcium sulfate seperator 12 and sulfur in turn
Sour calcium storing unit 13；Described sodium chloride collecting pit 4 is also connected with described cation and anion exchange device 1.
It is additionally provided with concentration adjusting device 14 between described sodium chloride collecting pit 4 and described cation and anion exchange device 1.
Claims (9)
1. during a kind of viscose rayon produces, manufacture the processing system of the waste water that demineralized water produces it is characterised in that：Including connecting successively
The cation and anion exchange device connecing（1）, magnesium hydrate precipitate pond（2）, calcium sulfate precipitation pond（3）, sodium chloride collecting pit（4）And sulphuric acid
Sodium dissolving tank（5）；Described sodium sulfate dissolving tank（5）Again with described calcium sulfate precipitation pond（3）Connect；Described magnesium hydrate precipitate pond
（2）Also it is connected with the first magnesium hydroxide seperator in turn（6）, magnesium hydroxide flusher（7）, the second magnesium hydroxide seperator
（8）With magnesium hydroxide storing unit（9）；Described calcium sulfate precipitation pond（3）Also it is connected with the first calcium sulfate seperator in turn（10）、
Calcium sulfate flusher（11）, the second calcium sulfate seperator（12）With calcium sulfate storing unit（13）；Described sodium chloride collecting pit
（4）It is also connected with described cation and anion exchange device（1）.
2. a kind of viscose rayon according to claim 1 manufactures the processing system of the waste water that demineralized water produces in producing, its
It is characterised by：Described first magnesium hydroxide seperator（6）, the second magnesium hydroxide seperator（8）, the first calcium sulfate seperator（10）
With the second calcium sulfate seperator（12）It is all butterfly centrifugal machine.
3. a kind of viscose rayon according to claim 1 manufactures the processing system of the waste water that demineralized water produces in producing, its
It is characterised by：Described magnesium hydroxide flusher（7）With described calcium sulfate flusher（11）Converge each via independent pipeline
One pipeline of synthesis and described sodium chloride collecting pit（4）Connect.
4. a kind of viscose rayon according to claim 3 manufactures the processing system of the waste water that demineralized water produces in producing, its
It is characterised by：Described sodium sulfate dissolving tank（5）In sodium sulfate be derived from for producing the sodium sulfate in the acid bath of viscose rayon.
5. a kind of viscose rayon according to claim 1 manufactures the processing system of the waste water that demineralized water produces in producing, its
It is characterised by：Described magnesium hydrate precipitate pond（2）With described calcium sulfate precipitation pond（3）Between be additionally provided with defecator.
6. during a kind of viscose rayon produces according to claim 1 or 5, manufacture the processing system of the waste water that demineralized water produces,
It is characterized in that：Described calcium sulfate precipitation pond（3）With described sodium chloride collecting pit（4）Between be additionally provided with defecator.
7. a kind of viscose rayon according to claim 1 manufactures the processing system of the waste water that demineralized water produces in producing, its
It is characterised by：Described second magnesium hydroxide seperator（8）With described magnesium hydroxide storing unit（9）Between be additionally provided with drying dress
Put.
8. a kind of viscose rayon according to claim 1 or 7 manufactures the processing system of the waste water that demineralized water produces in producing,
It is characterized in that：Described second calcium sulfate seperator（12）With described calcium sulfate storing unit（13）Between be also disposed with liter
Warm boiling device, quick cooler and defecator.
9. a kind of viscose rayon according to claim 1 manufactures the processing system of the waste water that demineralized water produces in producing, its
It is characterised by：Described sodium chloride collecting pit（4）With described cation and anion exchange device（1）Between be additionally provided with concentration adjusting device
（14）.
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| CN106277445A (en) * | 2016-08-26 | 2017-01-04 | 四川省宜宾惠美线业有限责任公司 | A kind of viscose rayon manufactures the processing system of the waste water that demineralized water produces in producing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106277445A (en) * | 2016-08-26 | 2017-01-04 | 四川省宜宾惠美线业有限责任公司 | A kind of viscose rayon manufactures the processing system of the waste water that demineralized water produces in producing |
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