CN206624738U - A kind of processing system of brine waste evaporative crystallization mother liquor - Google Patents
A kind of processing system of brine waste evaporative crystallization mother liquor Download PDFInfo
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- CN206624738U CN206624738U CN201720328781.6U CN201720328781U CN206624738U CN 206624738 U CN206624738 U CN 206624738U CN 201720328781 U CN201720328781 U CN 201720328781U CN 206624738 U CN206624738 U CN 206624738U
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Abstract
This application provides a kind of processing system of brine waste evaporative crystallization mother liquor, including：PH value adjusts mixing arrangement, and it has water inlet and calcium chloride medicament inlet；The vacuum and low temperature evaporated crystallization device being connected with pH value regulation mixing arrangement, it has condensation-water drain and solidliquid mixture outlet；With the natural cooling crystallization device of the solidliquid mixture outlet connection of the vacuum and low temperature evaporated crystallization device, the natural cooling crystallization device has solid product outlet.The application can add calcium chloride medicament in mother liquor, low-temperature evaporation and natural cooling crystallization fully couple simultaneously, so that mother liquor crystallization is complete, is formed by curing solid waste, so as to realize the purpose of the liquid zero emission of waste water evaporation and crystal process, have the characteristics that treatment effeciency is high, equipment is taken up an area less, reduced investment, operating cost are low.In addition, the application processing system can use totally enclosed design, secondary environmental pollution and processed water pollution once again will not be caused.
Description
Technical field
It the utility model is related to environmental protection technical field, more particularly to a kind of processing of brine waste evaporative crystallization mother liquor
System.
Background technology
With the getting worse of environmental problem, environmental protection has obtained increasing concern with pollution processing.Wherein,
Waste water handling problem is always the most important thing in the fields such as medication chemistry.The waste water characteristic in the fields such as medication chemistry includes water quality water
Amount change is big, biodegradability is poor, containing substantial amounts of inorganic salts etc., and high-salt wastewater be at present the most intractable waste water in the country it
One, the development of many enterprises is seriously govern the problem of waste water.On the treatment technology of high slat-containing wastewater, study both at home and abroad
Decades, at present the method for generally use mainly include：Bioanalysis and evaporative desalination method etc..Evaporation is modern chemical industry unit behaviour
One of make, i.e., vaporize the partial solvent in solution with the method for heating and remove, to improve the concentration of solution, or be solute analysis
Go out to create conditions.
Evaporative desalination method is to be removed the inorganic salts in waste liquid by way of evaporation using condensing crystallizing system
Method, solid and mother liquor are obtained after separation of solid and liquid.Resulting solid is inorganic salt product through dry packing, and mother liquor is main
It is inorganic salt saturated solution, it can also influence wastewater from chemical industry " zero-emission " if not being acted upon.At present, medication chemistry saliferous gives up
The mother liquor of water evaporation crystallization mainly has two kinds of tupes, and one kind is to set an evaporation pond, produced by waste water evaporative crystallization
Mother liquor deliver to natural evaporation carried out in evaporation pond, this pattern need huge occupation of land, investment it is big, will to natural evaporation condition
Seek major safety problems high and that secondary environmental pollution and water pollution once again easily occurs；Another pattern is exactly to set
Steamer carries out pressure and is evaporated, and such operating cost is high, safe for operation to ensure, while secondary environmental pollution also easily occurs and asks
Topic.
Therefore, mother liquor caused by how effectively, at low cost handling above-mentioned brine waste evaporative crystallization, it is current ability
Field technique personnel's urgent problem.
Utility model content
In view of this, the application provides a kind of processing system of brine waste evaporative crystallization mother liquor, and the utility model provides
Processing system have the characteristics that treatment effeciency is high, equipment is taken up an area less, reduced investment, operating cost are low.
The utility model discloses a kind of processing method of brine waste evaporative crystallization mother liquor, comprises the following steps：
1) brine waste evaporative crystallization mother liquor is subjected to pH value regulation, then mixed with calcium chloride or calcium chloride hydrate,
Obtain mixed liquor；
2) mixed liquor for obtaining step 1) carries out vacuum and low temperature evaporative crystallization, obtains solidliquid mixture, and produce condensation
Water, gained solidliquid mixture natural cooling crystallization again, obtains solid product.
The utility model provides a kind of processing system of brine waste evaporative crystallization mother liquor, and it includes：
PH value adjusts mixing arrangement, and the pH value regulation mixing arrangement has water inlet and calcium chloride medicament inlet；
The vacuum and low temperature evaporated crystallization device being connected with pH value regulation mixing arrangement, the vacuum and low temperature evaporative crystallization
Device has condensation-water drain and solidliquid mixture outlet；
It is described with the natural cooling crystallization device of the solidliquid mixture outlet connection of the vacuum and low temperature evaporated crystallization device
Natural cooling crystallization device has solid product outlet.
Preferably, the processing system also includes：Evaporative crystallization mother liquor collecting tank and elevator pump；The evaporative crystallization mother liquor
Mother liquor in collecting tank is pumped into pH by lifting and adjusts mixing arrangement.
Preferably, the pH regulations mixing arrangement also includes agent mixer.
Preferably, it is provided with mixer in the vacuum and low temperature evaporated crystallization device.
Preferably, the natural cooling crystallization device is packaging bag.
Preferably, the processing system is designed using enclosed construction.
Compared with prior art, brine waste is evaporated and tied in pH value adjusts mixing arrangement by the utility model embodiment
Brilliant mother liquor carries out pH value regulation, is then mixed with calcium chloride or calcium chloride hydrate, obtains mixed liquor；The utility model will obtain
Mixed liquor be sent into vacuum and low temperature evaporated crystallization device in, carry out vacuum and low temperature evaporative crystallization, obtain solidliquid mixture, and produce
Condensed water, gained solidliquid mixture are sent into natural cooling crystallization device natural cooling crystallization again, obtain solid product.This practicality is new
Type can add calcium chloride or calcium chloride hydrate in mother liquor, while low-temperature evaporation and natural cooling crystallization fully couple so that
Mother liquor crystallization is complete, is formed by curing solid waste, so as to realize the purpose of the liquid zero emission of waste water evaporation and crystal process, has processing
The features such as efficiency high, equipment are taken up an area less, reduced investment, low operating cost.
In addition, the utility model processing system can use totally enclosed design, secondary environmental pollution will not be caused and located
Manage water pollution once again.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the processing system for the brine waste crystalline mother solution that the utility model embodiment provides.
Embodiment
The technical scheme in the embodiment of the utility model is clearly and completely described below, it is clear that described reality
It is only the utility model part of the embodiment to apply example, rather than whole embodiments.Based on the embodiment in the utility model,
The every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, belongs to this reality
With novel protected scope.
The utility model discloses a kind of processing method of brine waste evaporative crystallization mother liquor, comprise the following steps：
1) brine waste evaporative crystallization mother liquor is subjected to pH value regulation, then mixed with calcium chloride or calcium chloride hydrate,
Obtain mixed liquor；
2) mixed liquor for obtaining step 1) carries out vacuum and low temperature evaporative crystallization, obtains solidliquid mixture, and produce condensation
Water, gained solidliquid mixture natural cooling crystallization again, obtains solid product.
Processing method provided by the utility model, can solve mother liquor in waste water evaporative crystallization processing procedure be difficult to handle, nothing
Method discharge, easily trigger the problems such as secondary environmental pollution and water pollution once again.
The utility model mainly handles brine waste evaporative crystallization mother liquor, can be coal chemical industry comprehensive discharge waste water evaporative crystallization
Caused mother liquor, doctor in caused mother liquor, Electronic Packaging project heavy metal MVR evaporative crystallization processing procedures in processing procedure
Caused mother liquor in medicine intermediate project waste water triple effect evaporation crystallization.The composition of the mother liquor is mainly sodium, potassium
Deng the saturated solution of inorganic salts；In embodiment of the present utility model, the brine waste evaporative crystallization mother liquor contains sodium chloride
(NaCl), sodium sulphate (Na2SO4) and sodium nitrate (NaNO3) in one or more.
In the utility model, the Baume degrees of the brine waste evaporative crystallization mother liquor can be 21~35, such as 21~33；
COD can be 150000~250000mg/L, such as 180000~210000mg/L.In some embodiments of the utility model, institute
State in mother liquor, NaCl contents 310g/L, Na2SO4Content 45g/L, Baume degrees 33, CaSO4Content 3.2g/L；COD is
180000mg/L.In some embodiments of the utility model, in the mother liquor, NaCl contents 200g/L, Na2SO4Content 15g/
L, Baume degrees 21, CaSO4Content 1.2g/L.In other embodiments of the present utility model, in the mother liquor, NaCl contents
320g/L, Baume degrees 32, COD 210000mg/L.Baume degrees (° B é) is a kind of method for representing solution concentration；Baume
Densimeter, which immerses, to be surveyed in solution, and the obtained number of degrees are just Baume degrees.
The utility model embodiment can will in the industrial brine waste evaporative crystallization processing procedure such as medication chemistry caused by
Mother liquor is collected in collecting tank, boosted pump lifting, carries out pH value regulation or adjustment, the mother liquor of adjusted good pH value.
In embodiment of the present utility model, pH value >=7 of brine waste evaporative crystallization mother liquor after the pH value regulation, such as
7th, 7.5 or 8.The pH value regulation can use one or more progress in sodium hydroxide (NaOH), potassium hydroxide or sodium carbonate,
It is preferred that use NaOH.The utility model preferably will be more than or equal to 7 after water inlet pH value adjustment, beneficial to subsequent operation.It is also, described to contain
The inflow temperature of salt waste water evaporative crystallization mother liquor is preferably 40~100 DEG C, more preferably 40~70 DEG C, more preferably 55~
65℃。
After the mother liquor of adjusted good pH value, the utility model embodiment can add the calcium chloride of certain proportion amount thereto
Or calcium chloride hydrate, preferably it is stirred, obtains uniform mixed liquor.
In embodiment of the present utility model, rational proportion amount calcium chloride (CaCl2) or the addition of calcium chloride hydrate can
So that the solid-liquid in mother liquor realizes perfect solidification.In preferred embodiment of the present utility model, calcium chloride (CaCl2) or calcium chloride
The adding proportion of hydrate be in final discharge mother liquor after the processing of low-temperature evaporation crystallization apparatus calcium chloride content be 100~
150g/L.Specifically, the mother liquor reclaimed water after the pH value regulation and the mass ratio of calcium chloride or calcium chloride hydrate can be 1：
(0.1~1), preferably 1:(0.5~1).
After being uniformly mixing to obtain mixed liquor, the utility model embodiment is carried out vacuum and low temperature evaporative crystallization, consolidate
Liquid mixture, and condensed water is produced, natural cooling crystallization, natural cooling temperature are less than or equal to 30 DEG C to gained solidliquid mixture again,
Obtain solid product.
The utility model embodiment can send the waste water evaporative crystallization mother liquor that medicament adjusts is added into vacuum and low temperature evaporation
Crystallization apparatus, mixer is preferably provided with vacuum and low temperature evaporated crystallization device, opens mixer, under conditions of stirring, warp
The evaporation process of certain time is crossed, then solidliquid mixture is discharged from evaporated crystallization device, then is delivered to naturally cold in packaging bag
But, crystallisation by cooling process now occurs, the solidliquid mixture is thoroughly solidified.That is, the utility model is using evaporative crystallization and oneself
The group technology of right crystallisation by cooling realizes the processing of caused mother liquor in waste water evaporative crystallization processing procedure, passes through toward waste water
The calcium chloride or calcium chloride hydrate of certain proportion amount are added in evaporative crystallization mother liquor, is discharged after the evaporation by certain time
Cooled down again, the moisture content in mother liquor becomes the crystallization water of calcium chloride, mother liquor is obtained crystallisation solidification and forms solid waste, so as to realize
The purpose of the liquid zero emission of waste water evaporation and crystal process.
In specific embodiment of the utility model, the temperature of the vacuum and low temperature evaporative crystallization is 40~90 DEG C.This reality
Preferably coupled with new using the low-temperature evaporation crystallization apparatus with stirring with discharging natural cooling crystallization perfection, make consolidating in mother liquor
Liquid realizes perfect solidification.The time of vacuum and low temperature evaporative crystallization described in the utility model embodiment can be 30 minutes~60 minutes；
Natural cooling crystallization is less than or equal to 30 DEG C to feed temperature.Also, the utility model is using natural cooling crystallization solidification pattern, section
The about energy.
Caused condensed water can send Sewage Disposal in the utility model embodiment vacuum and low temperature evaporated crystallization device, directly
Connect qualified discharge；And the utility model natural cooling crystallization forms solid waste, as condensation type solid product.Therefore, this practicality is new
Type can realize the purpose of the liquid zero emission of waste water evaporation and crystal process, and it is difficult to solve mother liquor in waste water evaporative crystallization processing procedure
In handling, can not discharge, easily trigger secondary environmental pollution and the problems such as water pollution once again.
The utility model provides a kind of processing system of brine waste evaporative crystallization mother liquor, and it includes：
PH value adjusts mixing arrangement, and the pH value regulation mixing arrangement has water inlet and calcium chloride medicament inlet；
The vacuum and low temperature evaporated crystallization device being connected with pH value regulation mixing arrangement, the vacuum and low temperature evaporative crystallization
Device has condensation-water drain and solidliquid mixture outlet；
It is described with the natural cooling crystallization device of the solidliquid mixture outlet connection of the vacuum and low temperature evaporated crystallization device
Natural cooling crystallization device has solid product outlet.
Referring to Fig. 1, Fig. 1 is that the flow of the processing system for the brine waste crystalline mother solution that the utility model embodiment provides is shown
It is intended to.
Processing system described in the utility model preferably also includes：Evaporative crystallization mother liquor collecting tank and elevator pump；The evaporation
Mother liquor in crystalline mother solution collecting tank (abbreviation collecting tank) is pumped into pH by lifting and adjusts mixing arrangement.Wherein, the collection
Using commonly used in the art, the utility model is not particularly limited for groove and elevator pump.In embodiment of the present utility model,
The day output of the mother liquor can be 10~50t/d.Also, the inflow temperature of the brine waste evaporative crystallization mother liquor is preferably
40~100 DEG C, more preferably 40~70 DEG C, more preferably 55~65 DEG C.
Processing system described in the utility model includes pH regulation mixing arrangements, and it has water inlet and calcium chloride medicament inlet
(calcium chloride or calcium chloride hydrate import can be claimed)；The pH regulations mixing arrangement is used to enter in brine waste evaporative crystallization mother liquor
Row pH value is adjusted, and is mixed with calcium chloride or calcium chloride hydrate.The utility model to the pH adjust mixing arrangement size,
Material and structure etc. are not particularly limited, and can use pH regulating reservoirs well known to those skilled in the art, pH regulating tanks etc..
In addition, the pH regulations mixing arrangement preferably also includes agent mixer.The utility model can also use medicament
Blender adds the medicaments such as calcium chloride or calcium chloride hydrate, and makes it well mixed；The pH value regulation preferably uses hydrogen-oxygen
Change one or more progress in sodium, potassium hydroxide or sodium carbonate, more preferably using NaOH.In embodiment of the present utility model
In, pH value >=7 of brine waste evaporative crystallization mother liquor after the pH value regulation；Aqueous and chlorine in mother liquor after the pH value regulation
The mass ratio for changing calcium or calcium chloride hydrate is preferably 1:(0.1~1), more preferably 1:(0.5~1).In the utility model
Embodiment in, rational proportion amount calcium chloride (CaCl2) or the addition of calcium chloride hydrate may be such that solid-liquid in mother liquor is realized
Perfection solidification.In preferred embodiment of the present utility model, calcium chloride (CaCl2) or calcium chloride hydrate adding proportion for warp
Calcium chloride content is 100~150g/L in the final discharge mother liquor crossed after the processing of low temperature evaporated crystallization device, and electrical conductivity is less than 100
μS/cm。
In the utility model, the processing system of the brine waste evaporative crystallization mother liquor includes mixing with pH value regulation
Attach together the vacuum and low temperature evaporated crystallization device for putting connection.The vacuum and low temperature evaporated crystallization device has condensation-water drain and solid-liquid
Mixture outlet；For obtained mixed liquor to be carried out into vacuum and low temperature evaporative crystallization, solidliquid mixture is obtained, and produce condensation
Water.
In the utility model, mixer is preferably provided with the vacuum and low temperature evaporated crystallization device.The utility model
Embodiment can send the waste water evaporative crystallization mother liquor that medicament adjusts is added into vacuum and low temperature evaporated crystallization device, open stirring
Machine, by the evaporation process of certain time, resulting solidliquid mixture solidliquid mixture outlet row from evaporated crystallization device
Go out, while produce condensed water, can be by the direct qualified discharge of condensation-water drain.The utility model can use vacuum commonly used in the art
The model devices such as low-temperature evaporation crystallization apparatus, such as TG-250, TG-500, TG-1000, TG-1500, TG-2000, it has heat
Source；The temperature of the vacuum and low temperature evaporative crystallization can be 40~90 DEG C.
Processing system described in the utility model includes natural cooling crystallization device, and it is filled with the vacuum and low temperature evaporative crystallization
The solidliquid mixture outlet connection put.Gained solidliquid mixture is discharged from evaporated crystallization device, then delivers to natural cooling crystallization
Device, natural cooling in packaging bag as well known to the skilled person, crystallisation by cooling process now occurs, mix the solid-liquid
Thing is finally fully cured, and the solid waste that crystallisation solidification is formed can be exported from solid product and discharged.
The utility model realizes that waste water evaporative crystallization is handled using evaporative crystallization and the combination unit of natural cooling crystallization
During caused mother liquor processing, by toward calcium chloride or the chlorination that certain proportion amount is added in waste water evaporative crystallization mother liquor
Hydrate of calcium, discharging after the evaporation by certain time and cooled down again, the moisture content in mother liquor becomes the crystallization water of calcium chloride,
Mother liquor is obtained crystallisation solidification and form solid waste, so as to realize the purpose of the liquid zero emission of waste water evaporation and crystal process.
To sum up, the processing method of brine waste evaporative crystallization mother liquor described in the utility model and its system have treatment effeciency
The features such as high, equipment is taken up an area less, reduced investment, low operating cost.In addition, processing system described in the utility model can use it is totally-enclosed
Apparatus structure design, secondary environmental pollution and processed water pollution once again will not be caused.
For a further understanding of the application, the brine waste evaporative crystallization mother liquor provided with reference to embodiment the application
Processing method and its system be specifically described.
Embodiment 1
Certain newly-built mother liquid disposal system of Coal Chemical Engineering Project comprehensive wastewater MVR evaporative crystallization zero-emission projects
The day output of the newly-built mother liquid disposal system of Coal Chemical Engineering Project evaporative crystallization zero-emission project：50t/d；Processing stream
Journey is referring to Fig. 1.
Import mother liquor：NaCl contents 310g/L, Na2SO4Content 45g/L, Baume degrees 33, CaSO4Content 3.2g/L, COD
For 180000mg/L.
Outlet：Condensation type solid.
Final condensation flow to：Send head factory sewage disposal master station qualified discharge.
Caused mother liquor enters collecting tank, the mother being collected in coal chemical industry comprehensive discharge waste water evaporative crystallization processing procedure
NaCl contents 310g/L, Na in liquid2SO4Content 45g/L, Baume degrees 33, CaSO4Content 3.2g/L, COD 180000mg/L,
Temperature is 65 DEG C.After these waste water evaporative crystallization mother liquors are boosted, pH regulations are carried out with sodium hydroxide first, steam these waste water
The pH of hair crystalline mother solution reaches 7, then again toward the chlorine of addition certain proportion amount in the waste water evaporative crystallization mother liquor for adjust pH value
Change calcium, adding proportion is mother liquor water：Calcium chloride=1：0.9 mass ratio, after stirring, then the waste water adjusted is evaporated and tied
Brilliant mother liquor is sent into TG-2000 vacuum and low temperature evaporated crystallization devices, and mixer is provided with vacuum and low temperature evaporated crystallization device, opens
Mixer, at 60 DEG C after the evaporation process of 30 minutes, solidliquid mixture is discharged from evaporated crystallization device, is now discharged
Solidliquid mixture in calcium chloride content be 125~135g/L, the solidliquid mixture of discharge, which is delivered in packaging bag, to be naturally cooled to
30 DEG C, crystallisation by cooling process now occurs, solidliquid mixture is thoroughly solidified, forms 1200kg/h solid waste.In addition, vacuum is low
The caused direct qualified discharge of condensed water in warm evaporated crystallization device, it is final discharge calcium chloride content in mother liquor be 100~
150g/L, electrical conductivity are less than 90 μ S/cm.
Embodiment 2
Certain Electronic Packaging project heavy metal MVR evaporative crystallization zero-emission mother liquid disposal system
The day output of the Electronic Packaging project heavy metal MVR evaporative crystallization zero-emission mother liquid disposal systems：12t/d, place
Flow is managed referring to Fig. 1.
Import mother liquor：NaCl contents 200g/L, Na2SO4Content 15g/L, Baume degrees 21, CaSO4Content 1.2g/L.
Outlet：Condensation type solid.
Final condensation flow to：Send head factory sewage disposal master station qualified discharge.
Caused mother liquor enters collecting tank in Electronic Packaging project heavy metal MVR evaporative crystallization processing procedures, is collected
Mother liquor in NaCl contents 200g/L, Na2SO4Content 15g/L, Baume degrees 21, CaSO4Content 1.2g/L, temperature are 60 DEG C.
After these heavy metals MVR evaporative crystallization mother liquors are boosted, pH regulations are carried out with sodium hydroxide first, steam these heavy metals MVR
The pH of hair crystalline mother solution reaches 7.5, then again toward adding certain proportion in the heavy metal MVR evaporative crystallization mother liquors for adjusting pH value
The calcium chloride of amount, adding proportion are mother liquor water：Calcium chloride=1：0.65 mass ratio, after stirring, then the weight adjusted
Metal MVR evaporative crystallizations mother liquor is sent into TG-500 vacuum and low temperature evaporated crystallization devices, is set in vacuum and low temperature evaporated crystallization device
There is mixer, open mixer, at 50 DEG C after the evaporation process of 60 minutes, solidliquid mixture is from evaporated crystallization device
Discharge, calcium chloride content is 115~125g/L in the solidliquid mixture now discharged, and the solidliquid mixture of discharge delivers to packaging bag
In naturally cool to 30 DEG C, now occur crystallisation by cooling process, solidliquid mixture is thoroughly solidified, form 250kg/h solid waste.
In addition, the caused direct qualified discharge of condensed water in vacuum and low temperature evaporated crystallization device, finally discharges calcium chloride in mother liquor and contains
Measure and be less than 80 μ S/cm for 100~150g/L, electrical conductivity.
Embodiment 3
Certain medicine intermediate project waste water triple effect evaporation crystallizes the newly-built mother liquid disposal system of zero-emission project
The medicine intermediate project waste water triple effect evaporation crystallizes the day output of the newly-built mother liquid disposal system of zero-emission project：
24t/d；Handling process is referring to Fig. 1.
Import mother liquor：NaCl content 320g/L, Baume degrees 32, COD 210000mg/L.
Outlet：Condensation type solid.
Final condensation flow to：Send head factory sewage disposal master station qualified discharge.
Caused mother liquor enters collecting tank in medicine intermediate project waste water triple effect evaporation crystallization, is collected
Mother liquor in NaCl content 320g/L, Baume degrees 32, COD 210000mg/L, temperature be 55 DEG C.These triple effect evaporations crystallize
After mother liquor is boosted, pH regulations are carried out with sodium hydroxide first, the pH of these triple effect evaporation crystalline mother solutions is reached 8, Ran Houzai
The calcium chloride of certain proportion amount is added into the triple effect evaporation crystalline mother solution for adjust pH value, adding proportion is mother liquor water：Chlorine
Change calcium=1：1 mass ratio, after stirring, then the triple effect evaporation crystalline mother solution adjusted is sent into TG-1000 vacuum and low temperatures and steamed
Crystallization apparatus is sent out, mixer is provided with vacuum and low temperature evaporated crystallization device, opens mixer, by 45 minutes at 40 DEG C
After evaporation process, solidliquid mixture is discharged from evaporated crystallization device, and calcium chloride content is in the solidliquid mixture now discharged
100~115g/L, the solidliquid mixture of discharge, which is delivered in packaging bag, naturally cools to 30 DEG C, and crystallisation by cooling process now occurs,
Solidliquid mixture is thoroughly solidified, form 650kg/h solid waste.It is in addition, caused cold in vacuum and low temperature evaporated crystallization device
The direct qualified discharge of condensate, it is 100~150g/L finally to discharge calcium chloride content in mother liquor, and electrical conductivity is less than 100 μ S/cm.
As can be seen from the above embodiments, the utility model using evaporative crystallization and natural cooling crystallization combination unit and
Technique realizes the processing of caused mother liquor in waste water evaporative crystallization processing procedure, by toward adding in waste water evaporative crystallization mother liquor
Add the calcium chloride or calcium chloride hydrate of certain proportion amount, discharge after the evaporation by certain time and cooled down again, mother liquor
In moisture content become the crystallization water of calcium chloride, mother liquor is obtained crystallisation solidification and form solid waste, so as to realize waste water evaporative crystallization mistake
The purpose of the liquid zero emission of journey.The utility model has treatment effeciency is high, equipment is taken up an area less, reduced investment, operating cost are low etc.
Feature, in addition, the utility model can use totally enclosed apparatus structure to design, secondary environmental pollution and processed water will not be caused
Matter secondary pollution.
Described above is only preferred embodiment of the present utility model, it is noted that the specialty for making the art
Technical staff, on the premise of the utility model technical principle is not departed from, it is that by a variety of modifications to these embodiments
, and these modifications also should be regarded as the scope that the utility model should be protected.
Claims (6)
- A kind of 1. processing system of brine waste evaporative crystallization mother liquor, it is characterised in that including：PH value adjusts mixing arrangement, and the pH value regulation mixing arrangement has water inlet and calcium chloride medicament inlet；The vacuum and low temperature evaporated crystallization device being connected with pH value regulation mixing arrangement, the vacuum and low temperature evaporated crystallization device Exported with condensation-water drain and solidliquid mixture；With the natural cooling crystallization device of the solidliquid mixture outlet connection of the vacuum and low temperature evaporated crystallization device, the nature Equipment of crystallisation by cooling has solid product outlet.
- 2. processing system according to claim 1, it is characterised in that the processing system also includes：Evaporative crystallization mother liquor Collecting tank and elevator pump；Mother liquor in the evaporative crystallization mother liquor collecting tank is pumped into pH by lifting and adjusts mixing arrangement.
- 3. processing system according to claim 1, it is characterised in that the pH regulations mixing arrangement also includes medicament and mixed Device.
- 4. processing system according to claim 1, it is characterised in that be provided with the vacuum and low temperature evaporated crystallization device Mixer.
- 5. processing system according to claim 1, it is characterised in that the natural cooling crystallization device is packaging bag.
- 6. processing system according to claim 1, it is characterised in that the processing system is designed using enclosed construction.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106810000A (en) * | 2017-03-30 | 2017-06-09 | 高频美特利环境科技（北京）有限公司 | A kind of processing method and its system of brine waste evaporative crystallization mother liquor |
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2017
- 2017-03-30 CN CN201720328781.6U patent/CN206624738U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106810000A (en) * | 2017-03-30 | 2017-06-09 | 高频美特利环境科技（北京）有限公司 | A kind of processing method and its system of brine waste evaporative crystallization mother liquor |
| CN106810000B (en) * | 2017-03-30 | 2023-11-24 | 高频(北京)科技股份有限公司 | Treatment method and system for evaporating and crystallizing mother liquor from salt-containing wastewater |
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