CN208716886U - A kind of high calcium high sodium waste-water evaporating - Google Patents
A kind of high calcium high sodium waste-water evaporating Download PDFInfo
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- CN208716886U CN208716886U CN201821372035.8U CN201821372035U CN208716886U CN 208716886 U CN208716886 U CN 208716886U CN 201821372035 U CN201821372035 U CN 201821372035U CN 208716886 U CN208716886 U CN 208716886U
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- effect
- mother liquor
- separation chamber
- crystallization apparatus
- heating room
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- 238000001704 evaporation Methods 0.000 title claims abstract description 38
- 239000002351 wastewater Substances 0.000 title claims abstract description 20
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 239000011575 calcium Substances 0.000 title claims abstract description 13
- 229910052791 calcium Inorganic materials 0.000 title claims abstract description 13
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 title claims abstract description 12
- 239000011734 sodium Substances 0.000 title claims abstract description 12
- 229910052708 sodium Inorganic materials 0.000 title claims abstract description 12
- 230000000694 effects Effects 0.000 claims abstract description 99
- 238000000926 separation method Methods 0.000 claims abstract description 48
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 40
- 239000012452 mother liquor Substances 0.000 claims abstract description 33
- 230000008020 evaporation Effects 0.000 claims abstract description 29
- 238000002425 crystallisation Methods 0.000 claims abstract description 24
- 230000008025 crystallization Effects 0.000 claims abstract description 24
- 239000011780 sodium chloride Chemical class 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 13
- 229960005069 calcium Drugs 0.000 claims abstract description 12
- 239000013078 crystal Substances 0.000 claims abstract description 9
- 239000007787 solid Substances 0.000 claims abstract description 9
- 239000002562 thickening agent Substances 0.000 claims abstract description 8
- LLSDKQJKOVVTOJ-UHFFFAOYSA-L calcium chloride dihydrate Chemical compound O.O.[Cl-].[Cl-].[Ca+2] LLSDKQJKOVVTOJ-UHFFFAOYSA-L 0.000 claims abstract description 4
- 229940052299 calcium chloride dihydrate Drugs 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims description 37
- 239000000463 material Substances 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical class [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 abstract description 17
- 229960002713 calcium chloride Drugs 0.000 abstract description 17
- 239000001110 calcium chloride Substances 0.000 abstract description 17
- 229910001628 calcium chloride Inorganic materials 0.000 abstract description 17
- 239000007788 liquid Substances 0.000 abstract description 9
- 150000003839 salts Chemical class 0.000 abstract description 9
- 239000012141 concentrate Substances 0.000 abstract description 4
- 238000005119 centrifugation Methods 0.000 abstract description 3
- -1 centrifuge Substances 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 abstract 1
- 238000007599 discharging Methods 0.000 description 9
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000012266 salt solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 206010039509 Scab Diseases 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012432 intermediate storage Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000005413 snowmelt Substances 0.000 description 1
- 150000003385 sodium Chemical class 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model relates to a kind of high calcium high sodium waste-water evaporating, structure includes technique in three-effect countercurrent evaporation crystallization apparatus, thickener, centrifuge, mother liquor tank, mother liquor pump, single effect evaporation crystallization apparatus and barrate slicing machine.Waste water containing two kinds of salts of calcium chloride and sodium chloride carries out multiple-effect evaporation concentration, centrifuge separation by technique in three-effect countercurrent evaporation crystallization apparatus.Isolated solid portion is sodium chloride product, and liquid portion is mother liquor.Mother liquor after centrifugation carries out single-effect evaporating equipment, and concentrate enters barrate slicing machine, and cooling is sliced to obtain calcium chloride dihydrate crystal.The utility model can by high calcium high sodium waste-water calcium chloride and sodium chloride successfully separate, and successfully realize zero-emission, maximally utilize resource.
Description
Technical field
The utility model relates to a kind of wastewater treatment equipment, specifically a kind of high calcium high sodium waste-water evaporation process dress
It sets.
Background technique
A large amount of high calcium height can be generated in fields such as chemical industry, pharmacy and receive mixed salt waste water, the salinity in the waste water with calcium chloride and
Based on sodium chloride, traditional equipment is separated to calcium chloride and sodium chloride, obtains standard compliant calcium chloride and sodium chloride
While, can all there be part high salt concentration waste water to be discharged finally, cannot achieve the zero-emission of waste water, to can be made to environment
At certain pollution.
Utility model content
The purpose of this utility model is just to provide a kind of high calcium high sodium waste-water evaporating, is existed with solving the prior art
The problem of cannot achieve wastewater zero discharge while Isolating chlorinated sodium and calcium chloride.
The utility model is realized in this way: a kind of high calcium high sodium waste-water evaporating, comprising:
The technique in three-effect countercurrent evaporation crystallization apparatus being sequentially connected, for raw material to be carried out countercurrent evaporation；Including one effect heating room,
One effect separation chamber, two effect heating rooms, two effect separation chambers and triple effect heating room and triple effect separation chamber；The secondary steaming of one effect separation chamber
Vapour is sent to two effect heating rooms；Two effects separate indoor secondary steam and send to triple effect heating room；
Thickener, for solid suspended material concentration will to be contained from 1st effective evaporator；
Centrifuge, for solid sodium chloride and mother liquor will to be obtained from thickener containing solid suspended material centrifuge separation；
Mother liquor tank, for collecting the mother liquor from centrifuge；
Mother liquor pump, for pumping out the mother liquor in mother liquor tank；
Single effect evaporation crystallization apparatus, for the multiple-effect mother liquor from mother liquor tank to be evaporated；Including single-action heating room with
Single-action separation chamber；And
Barrate slicing machine will carry out decrease temperature crystalline by cooling water indirect heat exchange from the mother liquor of single effect evaporation crystallization apparatus
And be sliced, obtain calcium chloride dihydrate crystal；
Heating room lower part and separation in the technique in three-effect countercurrent evaporation crystallization apparatus and single effect evaporation crystallization apparatus, in each effect
Connecting pipeline between the lower part of room installs effective inner shaft stream pump；Axial-flow pump includes being installed on effect heating room and an effect in the effect
Between separation chamber one effect axial-flow pump, be installed on two effects heating room and two effect separation chambers between two effect axial-flow pumps, be installed on three
The list that effect heats the triple effect axial-flow pump between room and triple effect separation chamber and is installed between single-action heating room and single-action separation chamber
Imitate axial-flow pump.
The utility model separates two kinds of salt with sodium chloride dissolubility difference difference according to calcium chloride in mixed salt solution,
As the temperature rises, the solubility of sodium chloride reduces, and the solubility of calcium chloride increases.Steam is set successively to pass through one, two, three
Evaporator is imitated, waste water successively passes through three, two, 1st effective evaporator, and counter-current modes of operation effectively guarantees chlorine using high temperature discharging
Change sodium crystallization be precipitated and calcium chloride still in the solution, convenient for the separation of two kinds of salts.It obtains sodium chloride crystal and contains chlorination
The mother liquor of calcium, then mother liquor is sent into single effect evaporation crystallization apparatus, obtain calcium chloride crystals.Utilize the two solubility in the solution
It influences each other and carries out the separation of salt, sodium chloride, calcium chloride respectively reach respective standard, have both realized maximum recycling benefit
With, and highly concentrated salt waste water is allowed to realize zero-emission.In addition the utility model, which also has the advantage that, utilizes axis between heating room and separation chamber
The motive force that stream pump generates makes feed liquid, with the flowing of higher speed, avoid crystallized stock in tubulation in the tubulation of evaporator
Easily settled blocking；Residence time of the crystallized stock in tubulation is also shortened simultaneously, crystalline particle is avoided and is overheated in tubulation
It scabs.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
In figure: 1, an effect heating room；2, an effect separation chamber；3, two effect heating room；4, two effect separation chamber；5, triple effect heats
Room；6, triple effect separation chamber；7, thickener；8, centrifuge；9, mother liquor tank；10, room is heated in single-action；11, single-action separation chamber；12, turn
Drum slicer；13, an effect axial-flow pump；14, two effect axial-flow pump；15, triple effect axial-flow pump；16, single-action axial-flow pump；17, an effect discharging
Pump；18, two effect discharging pump；19, triple effect discharging pump；20, mother liquor pumps；21, single-action discharging pump.
Specific embodiment
As shown in Figure 1, the utility model is by technique in three-effect countercurrent evaporation crystallization apparatus, thickener 7, centrifuge 8, mother liquor tank 9, mother
Liquid pump 20, single effect evaporation crystallization apparatus and barrate slicing machine 12 form.Technique in three-effect countercurrent evaporation crystallization apparatus includes being sequentially connected
An effect heating room 1, one imitate 3, two effect separation chambers 4 of the effect heating of separation chamber 2, two and triple effect heating room 5 and triple effect separation chamber 6.
Single effect evaporation crystallization apparatus includes sequentially connected single-action heating room 10, single-action separation chamber 11.
Wherein, it is saturated raw steam to enter from an effect heating room 1, the secondary steam of an effect separation chamber 2 is sent to two effect heating rooms 3
As heat source, the secondary steam in two effect separation chambers 4, which is sent to triple effect heating room 5, is used as heat source, last secondary steam
From the discharge of triple effect separation chamber 6 and condensing recovery.And high calcium high sodium waste-water initially enters the triple effect heating of triple effect evaporation crystallization apparatus
Room 5 and triple effect separation chamber 6 are concentrated by evaporation, and then triple effect concentrate is pumped into two effects heating room 3 and two effects point by triple effect discharging pump 19
It is concentrated by evaporation from room 4, then two effect evaporation concentrated solutions are pumped into effect heating room 1 and an effect separation chamber 2 by two effect discharging pumps 18 and steam
Hair concentration.With the continuous increase of calcium chloride solubility in triple effect evaporator, sodium chloride is constantly precipitated, last effect high temperature concentration
Liquid is delivered to thickener 7 by an effect discharging pump 17 and carries out intermediate storage, and solidliquid mixture enters centrifuge 8 and is centrifuged,
Solid portion after separation is sodium chloride product, and liquid phase, that is, mother liquor, which enters in mother liquor tank 9, is pumped into list by mother liquor pump 20 after collection
Imitate evaporated crystallization device.
Mother liquor enters the single-action heating room 10 and single-action separation chamber 11 of single effect evaporation crystallization apparatus, be evaporated to certain temperature and
After solubility, by the output of single-action discharging pump 21 to barrate slicing machine 12, decrease temperature crystalline is carried out with cooling water indirect heat exchange, obtains two
Water calcium chloride crystals.
Evaporated crystallization device uses forced-circulation evaporator, heats axial-flow pump in the effect between room and separation chamber and follows as pressure
Ring pump.Axial-flow pump includes the effect axial-flow pump 13 being installed between effect heating room 1 and an effect separation chamber 2, is installed on two in imitating
Two between effect heating room 3 and two effect separation chambers 4 imitate axial-flow pumps 14, are installed between triple effect heating room 5 and triple effect separation chamber 6
Triple effect axial-flow pump 15 and the single-action axial-flow pump 16 being installed between single-action heating room 10 and single-action separation chamber 11.Axial-flow pump generates
Motive force makes feed liquid, with the flowing of higher speed, it is easily settled stifled in tubulation to avoid crystallized stock in the tubulation of evaporator
Plug；Residence time of the crystallized stock in tubulation is also shortened simultaneously, crystalline particle is avoided and is overheated in tubulation and scabbed.In order to
The operating of reduction system and maintenance cost can also optimize system: according to the design of heat exchanger, select suitable heat exchanger tube
Specification and length are suitble to the velocity in pipes under different operating conditions further according to material concentration different designs, by liquid in heat exchanger tube
Flow velocity designs in a certain range, and excessively high flow velocity is avoided to expend excessive power；Optimize the structure of gas-liquid separation chamber, so that
Participate in the consumption for containing crystal, capable of substantially reducing for power as few as possible in the feed liquid of circulation.
The utility model will carry out multiple-effect evaporation concentration, centrifugation point containing the waste water of two kinds of salts of calcium chloride and sodium chloride
From.According to the dissolubility difference of two kinds of salts in concentration process, control is concentrated by evaporation endpoint concentration and drop temperature, mixed salt solution
Middle calcium chloride solubility with temperature increases and becomes larger, and sodium chloride solubility with temperature is increased and reduced, in evaporating concentration process
Middle sodium chloride progressivelyes reach supersaturation and crystallization is precipitated, and for high temperature concentrate by centrifuge separation, isolated solid portion is sodium chloride
Product, liquid portion are mother liquor.Mother liquor after centrifugation carries out single-effect evaporating equipment, and concentrate enters barrate slicing machine 12, drops
Temperature is sliced to obtain calcium chloride dihydrate crystal to 50 DEG C.
The utility model method handles together high calcium high sodium waste-water, not only saves land occupation, energy consumption, also saving manpower
Material resources and cost of investment.Although being mixed with a small amount of sodium chloride in calcium chloride crystals, the product standard of National Industrial grade is reached, no
Influence its application in some industries.If it can do antifreezing agent, extinguishing chemical in building trade, the anti-of trees is also served as
Protect agent, the fireproof agent of fabric, water treating agent for boilers, motor vehicle antifreeze fluid, analytical reagent and for ice-melt, snow melt etc..
The utility model can by high calcium high sodium waste-water calcium chloride and sodium chloride successfully separate, and successfully realize
Zero-emission maximally utilizes resource.
Claims (1)
1. a kind of high calcium high sodium waste-water evaporating characterized by comprising
The technique in three-effect countercurrent evaporation crystallization apparatus being sequentially connected, for raw material to be carried out countercurrent evaporation；Including an effect heating room, an effect
Separation chamber, two effect heating rooms, two effect separation chambers and triple effect heating room and triple effect separation chamber；The secondary steam of one effect separation chamber is sent
To two effect heating rooms；Two effects separate indoor secondary steam and send to triple effect heating room；
Thickener, for solid suspended material concentration will to be contained from 1st effective evaporator；
Centrifuge, for solid sodium chloride and mother liquor will to be obtained from thickener containing solid suspended material centrifuge separation；
Mother liquor tank, for collecting the mother liquor from centrifuge；
Mother liquor pump, for pumping out the mother liquor in mother liquor tank；
Single effect evaporation crystallization apparatus, for the multiple-effect mother liquor from mother liquor tank to be evaporated；Room and single-action are heated including single-action
Separation chamber；And
Barrate slicing machine will carry out decrease temperature crystalline by cooling water indirect heat exchange from the mother liquor of single effect evaporation crystallization apparatus and cut
Piece obtains calcium chloride dihydrate crystal；
In the technique in three-effect countercurrent evaporation crystallization apparatus and single effect evaporation crystallization apparatus, under the heating room lower part and separation chamber in each effect
Connecting pipeline between portion installs effective inner shaft stream pump；Axial-flow pump includes being installed on effect heating room and an effect separation in the effect
An effect axial-flow pump between room, is installed on triple effect and adds two effect axial-flow pumps being installed between two effects heating room and two effect separation chambers
Triple effect axial-flow pump between hot cell and triple effect separation chamber and the single-action axis being installed between single-action heating room and single-action separation chamber
Stream pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821372035.8U CN208716886U (en) | 2018-08-24 | 2018-08-24 | A kind of high calcium high sodium waste-water evaporating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821372035.8U CN208716886U (en) | 2018-08-24 | 2018-08-24 | A kind of high calcium high sodium waste-water evaporating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208716886U true CN208716886U (en) | 2019-04-09 |
Family
ID=65979307
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821372035.8U Active CN208716886U (en) | 2018-08-24 | 2018-08-24 | A kind of high calcium high sodium waste-water evaporating |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112174413A (en) * | 2020-09-01 | 2021-01-05 | 上海易湃富得环保科技有限公司 | Method for realizing zero discharge of MVR evaporation mother liquor |
| CN112408451A (en) * | 2020-11-26 | 2021-02-26 | 江苏苏盐井神股份有限公司 | Device and process for producing low-salt calcium chloride through alkaline process calcium |
| CN112897552A (en) * | 2021-02-03 | 2021-06-04 | 江西晶昊盐化有限公司 | Method for co-production of salt and calcium |
| CN117602646A (en) * | 2023-10-30 | 2024-02-27 | 宁夏润阳硅材料科技有限公司 | Comprehensive recovery zero-emission system for high-salt wastewater generated in polysilicon production |
-
2018
- 2018-08-24 CN CN201821372035.8U patent/CN208716886U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112174413A (en) * | 2020-09-01 | 2021-01-05 | 上海易湃富得环保科技有限公司 | Method for realizing zero discharge of MVR evaporation mother liquor |
| CN112408451A (en) * | 2020-11-26 | 2021-02-26 | 江苏苏盐井神股份有限公司 | Device and process for producing low-salt calcium chloride through alkaline process calcium |
| CN112897552A (en) * | 2021-02-03 | 2021-06-04 | 江西晶昊盐化有限公司 | Method for co-production of salt and calcium |
| CN112897552B (en) * | 2021-02-03 | 2023-03-31 | 江西晶昊盐化有限公司 | Method for co-production of salt and calcium |
| CN117602646A (en) * | 2023-10-30 | 2024-02-27 | 宁夏润阳硅材料科技有限公司 | Comprehensive recovery zero-emission system for high-salt wastewater generated in polysilicon production |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 050000 10-1201, Fangda Science Park, 266 Tianshan Street, high tech Zone, Shijiazhuang City, Hebei Province Patentee after: Shijiazhuang Dingwei Chemical Equipment Engineering Co.,Ltd. Address before: 050000 3rd floor, building 6, 266 Tianshan Street, high tech Zone, Shijiazhuang City, Hebei Province Patentee before: SHIJIAZHUANG DINGWEI CHEMICAL EQUIPMENT ENGINEERING Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Qingcheng Equipment Technology Hebei Co.,Ltd. Assignor: Shijiazhuang Dingwei Chemical Equipment Engineering Co.,Ltd. Contract record no.: X2023980042131 Denomination of utility model: A high calcium and high sodium wastewater evaporation treatment device Granted publication date: 20190409 License type: Common License Record date: 20230918 |
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| EE01 | Entry into force of recordation of patent licensing contract | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A high calcium and high sodium wastewater evaporation treatment device Effective date of registration: 20231020 Granted publication date: 20190409 Pledgee: China CITIC Bank Co.,Ltd. Shijiazhuang Branch Pledgor: Shijiazhuang Dingwei Chemical Equipment Engineering Co.,Ltd. Registration number: Y2023980062108 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |