CN106977032A - A kind of band washs the strong brine Crystallization Separation device of leg - Google Patents
A kind of band washs the strong brine Crystallization Separation device of leg Download PDFInfo
- Publication number
- CN106977032A CN106977032A CN201610030164.8A CN201610030164A CN106977032A CN 106977032 A CN106977032 A CN 106977032A CN 201610030164 A CN201610030164 A CN 201610030164A CN 106977032 A CN106977032 A CN 106977032A
- Authority
- CN
- China
- Prior art keywords
- strong brine
- leg
- import
- washing
- crystallizer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000012267 brine Substances 0.000 title claims abstract description 49
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 title claims abstract description 49
- 238000002425 crystallisation Methods 0.000 title claims abstract description 12
- 230000008025 crystallization Effects 0.000 title claims abstract description 12
- 238000000926 separation method Methods 0.000 title claims abstract description 9
- 239000013078 crystal Substances 0.000 claims abstract description 26
- 230000008676 import Effects 0.000 claims abstract description 25
- 150000003839 salts Chemical class 0.000 claims abstract description 25
- 238000005406 washing Methods 0.000 claims abstract description 25
- 239000012452 mother liquor Substances 0.000 claims abstract description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract description 21
- 239000011780 sodium chloride Substances 0.000 abstract description 11
- 239000002910 solid waste Substances 0.000 abstract description 7
- 239000002351 wastewater Substances 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 6
- 239000007832 Na2SO4 Substances 0.000 abstract description 5
- 239000011833 salt mixture Substances 0.000 abstract description 5
- 229910052938 sodium sulfate Inorganic materials 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical class [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 abstract 1
- 235000011152 sodium sulphate Nutrition 0.000 abstract 1
- 239000012266 salt solution Substances 0.000 description 10
- 239000012535 impurity Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 239000002699 waste material Substances 0.000 description 4
- 241000628997 Flos Species 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 241001529739 Prunella <angiosperm> Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 238000001640 fractional crystallisation Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D3/00—Halides of sodium, potassium or alkali metals in general
- C01D3/14—Purification
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D5/00—Sulfates or sulfites of sodium, potassium or alkali metals in general
- C01D5/16—Purification
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/06—Flash evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
A kind of band washs the strong brine Crystallization Separation device of leg, is related to the wastewater processing technology of environmental technology field.The present invention includes being in turn connected to form crystallizer, mother liquor separator, circulating pump and the heater of circulation line.It is structurally characterized in that the bottom of the crystallizer lower taper chamber one is provided with the washing leg of tubular type.Strong brine import and lower strong brine import are respectively equipped with the side wall for washing leg, and the connecting line of upper strong brine import and lower strong brine import extends respectively into washing Tui Nei centers and connects spout vertically downward.Wash between the opposite side of leg side wall, two import level heights provided with crystal salt outlet.Compared with the existing technology, the present invention can effectively reclaim NaCl the and Na2SO4 salt-mixtures in the solid waste produced by wastewater zero discharge or near-zero release.
Description
Technical field
The present invention relates to the wastewater processing technology of environmental technology field, particularly a kind of band washs the strong brine Crystallization Separation device of leg.
Background technology
Substantial amounts of brine waste can be produced in the industrial productions such as oil, coal chemical industry, electric power, these waste water produce a small amount of high slat-containing wastewater by after reuse.In the prior art, brine waste is continued usually using the crystal system comprising crystallizer to concentrate, to realize the zero-emission or near-zero release of waste water, finally produces a certain amount of solid waste containing various inorganic salinities and organic matter.Because such solid waste in China is defined as danger wastes, processing cost is high, so that operating cost is sharply increased.
By carrying out constituent analysis to above-mentioned solid waste, its inorganic salts accounts for the overwhelming majority, particularly NaCl and Na2SO4The content of two kinds of salt-mixtures is more than 90%.If salt-mixture is separated with other materials, it can reduce by more than 90% solid waste, while NaCl and Na2SO4Salt-mixture is alternatively arranged as the raw material of sal prunella coproduction industry, not only substantially reduces the landfill expense of solid waste, can also turn waste into wealth, and produces certain economic benefit.
The content of the invention
For above-mentioned the deficiencies in the prior art, it is an object of the invention to provide the strong brine Crystallization Separation device that a kind of band washs leg.It can effectively reclaim the NaCl and Na in solid waste produced by wastewater zero discharge or near-zero release2SO4Salt-mixture.
In order to reach foregoing invention purpose, technical scheme is realized as follows：
A kind of band washs the strong brine Crystallization Separation device of leg, and it includes being in turn connected to form crystallizer, mother liquor separator, circulating pump and the heater of circulation line.It is structurally characterized in that the bottom of the crystallizer lower taper chamber one is provided with the washing leg of tubular type.Strong brine import and lower strong brine import are respectively equipped with the side wall for washing leg, and the connecting line of upper strong brine import and lower strong brine import extends respectively into washing Tui Nei centers and connects spout vertically downward.Wash between the opposite side of leg side wall, two import level heights provided with crystal salt outlet.
The present invention makes washing leg play the effects such as collection salt, classification, washing, back dissolving soluble impurity, conveying as a result of said structure, is to improve one of critical component of crystal salt quality.Wash leg and provide appropriate speed and uniform fluidization using the internal structure of its particular design, can efficiently eluriate, cool down, classify and thicken.The salt constantly crystallized out in crystallizer is brilliant, and because gravity relationship is moved downward, washing leg is progressively dropped into from conical cavity one.Strong brine enters from washing leg bottom, rise and crystal salt countercurrent washing along leg wall, the difference of solution saturation degree on crystal face can be eliminated, solution is set to be not likely to produce inclusion enclave, the thickness of diffusion layer near crystal face can be also reduced simultaneously, impurity is not easily accessible crystal, so that the impurity such as COD, nitrate be removed, improve the quality of crystal salt.Strong brine has carried out heat exchange with salt slurry antikinesis in structure of the present invention, reduces salt discharge temperature, reduces heat lost by brine.
The present invention will be further described with reference to the accompanying drawings and detailed description.
Brief description of the drawings
Fig. 1 is connection diagram of the present invention；
Fig. 2 is the structural representation of washing leg in the present invention.
Embodiment
Referring to Fig. 1 and Fig. 2, a kind of band of the invention washs the strong brine Crystallization Separation device of leg, and it includes being in turn connected to form crystallizer 7, mother liquor separator 10, circulating pump 3 and the heater 5 of circulation line.The bottom of the lower taper chamber 1 of crystallizer 7 is provided with the washing leg 12 of tubular type.Strong brine import 13 and lower strong brine import 14 are respectively equipped with the side wall for washing leg 12, and the connecting line of upper strong brine import 13 and lower strong brine import 14 extends respectively into washing Tui12Nei centers and connects spout vertically downward.Wash between the opposite side of the side wall of leg 12, two import level heights provided with crystal salt outlet 15.
In the running that the present invention is applied, most of strong brine enters circulation pipe 2 from charging aperture 1, enters after being mixed with the salt solution in circulation pipe 2 through circulating pump 3 in heater 5 and heats, then enters crystallizer 7 through circulation pipe 6.Strong brine after heating is flashed in crystallizer 7, and the strong brine after most of heating enters the fractional crystallization salt of mother liquor separator 10 by the side wall of the bottom pyramidal chamber 1 of crystallizer 7.Part strong brine after separation is discharged by mother liquor floss hole 11, and the strong brine containing crystal salt enters circulation pipe 2.Small part strong brine is entered by the upper strong brine import 13 and lower strong brine import 14 of washing leg 12, and the strong brine after small part heating enters washing leg 12 by the bottom of the bottom pyramidal chamber 1 of crystallizer 7, and crystal salt is discharged by crystal salt floss hole 15.Additional steam is entered the heating chamber of heater 5 by air inlet 16, and the condensate liquid after heat exchange is discharged by floss hole 17.Steam in crystallizer 7 is discharged after two grades of demisters 18 by the outlet 20 of the side wall of conical cavity 2 19 at the top of crystallizer 7.
Most strong brine enters in heater 5 after being mixed with circulation crystallization salt solution in circulation pipe to be heated（Because the flow of the crystallization salt solution in circulation pipe is enter more than 150 times of strong brine flow, thus it is smaller to the components influence for crystallizing salt solution）.Strong brine after heating is the liquid of overheat, is flashed into crystallizer 7.The strong brine of overheat is discharged here, and the vapour transmission liquid level of formation is discharged to the top of crystallizer 7, and steam forms bubble, to NaCl, the Na formed in salt solution during rising2SO4Cleaned, make to be attached to the impurity that crystal salt shows, such as organic matter is redissolved in salt solution.And the salt solution after evaporating flows downwardly together with crystallization salt solution.Due to the evaporation of moisture, close to strong brine formation NaCl, Na of saturation2SO4Crystalline solid.Flowing and Action of Gravity Field of the salt crystal grain with hot salt brine, constantly collision are combined into bigger crystal grain, form haptophore, and extremely wash the outside tank skin direction of leg 12 with the flow motion of salt solution.Because the density of crystal grain is greater than the density of salt solution, crystal grain is moved downward, and constantly " growing up ", near the upper strong brine import 13 for dropping to washing leg 12.
Small part strong brine is also referred to as elutriation halogen and is divided to two place of entry to enter the washing leg 12 of crystallizer 7.The pipeline that upper strong brine import 13 is connected extends to the washing cavity center of leg 12 and the spout of connection vertically downward, forms conical current and sprays into, crystallization saline mixture and the strong brine of entrance is sufficiently mixed washing, due to the NaCl and Na in water inlet2SO4Concentration is closer to saturated concentration, and the concentration of other impurities reaches far away saturation, therefore using water inlet to the NaCl and Na that preliminarily form2SO4Washed, NaCl and Na2SO4The crystalline solid to be formed can be kept, and the other impurities for being attached to crystalline solid surface can dissolve again, so that NaCl and Na2SO4Form more pure crystal.The spout that the lower connecting line of strong brine import 13 extends to the washing cavity center of leg 12 and connected vertically downward forms downward conical current and sprayed into, grain of salt crystals is set to be suspended among the fluid of flowing, it can prevent crystal salt from blocking sewage draining exit at bottom deposit, also the crystal salt of relatively fine particle can be made to move upwards simultaneously, the crystal salt of larger particle is combined to form with the crystal salt on top, so as to be discharged from positioned at the crystal salt outlet 15 at the middle part of washing leg 12.
Claims (1)
1. a kind of band washs the strong brine Crystallization Separation device of leg, it includes being in turn connected to form the crystallizer of circulation line（7）, mother liquor separator（10）, circulating pump（3）And heater（5）, it is characterised in that the crystallizer（7）Lower taper chamber one（8）Bottom be provided with tubular type washing leg（12）, wash leg（12）Side wall on be respectively equipped with strong brine import（13）With lower strong brine import（14）, upper strong brine import（13）With lower strong brine import（14）Connecting line extend respectively into washing leg（12）Interior center and the spout of connection vertically downward, wash leg（12）Exported between the opposite side of side wall, two import level heights provided with crystal salt（15）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610030164.8A CN106977032A (en) | 2016-01-18 | 2016-01-18 | A kind of band washs the strong brine Crystallization Separation device of leg |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610030164.8A CN106977032A (en) | 2016-01-18 | 2016-01-18 | A kind of band washs the strong brine Crystallization Separation device of leg |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106977032A true CN106977032A (en) | 2017-07-25 |
Family
ID=59340188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610030164.8A Pending CN106977032A (en) | 2016-01-18 | 2016-01-18 | A kind of band washs the strong brine Crystallization Separation device of leg |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106977032A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109279627A (en) * | 2018-11-09 | 2019-01-29 | 中盐枣阳盐化有限公司 | A kind of sal prunella solid separation process and chemical plant installations |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104445477A (en) * | 2014-11-06 | 2015-03-25 | 曾小芳 | Evaporative-crystallization salt making equipment and wastewater treatment system for treating high-salt organic wastewater |
-
2016
- 2016-01-18 CN CN201610030164.8A patent/CN106977032A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104445477A (en) * | 2014-11-06 | 2015-03-25 | 曾小芳 | Evaporative-crystallization salt making equipment and wastewater treatment system for treating high-salt organic wastewater |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109279627A (en) * | 2018-11-09 | 2019-01-29 | 中盐枣阳盐化有限公司 | A kind of sal prunella solid separation process and chemical plant installations |
| CN109279627B (en) * | 2018-11-09 | 2023-12-05 | 中盐枣阳盐化有限公司 | Salt and nitrate solid separation process and chemical device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108128961A (en) | Brine waste zero emission method and system | |
| CN102659197B (en) | Water treatment process for recovering heavy oil recovery produced water to serve as boiler feed water | |
| CN104445477B (en) | Evaporative-crystallization salt making equipment and wastewater treatment system for treating high-salt organic wastewater | |
| CN101898082B (en) | Device and method for depriving sulfur dioxide in flue gas by using ammonia water | |
| CN208008627U (en) | Brine waste zero emission system | |
| CN205773470U (en) | A kind of crystal system for desulfurization wastewater recycling treatment | |
| CN106590922A (en) | Sesame oil processing and refining device | |
| CN105000741B (en) | The processing system of counter-infiltration dope | |
| BR112016016510B1 (en) | Process for recycling by separating the constituents of aluminized and plasticized packaging, cartons or not, and corresponding equipment | |
| CN205683607U (en) | A kind of steam forced circulation and the vaporizer of vacuum energy-saving | |
| CN205099370U (en) | High concentration contains salt waste water evaporation crystallization process device | |
| JP2015192979A (en) | Water treatment apparatus using semipermeable membrane | |
| CN203922912U (en) | Industry strong brine zero discharge treatment device | |
| CN104761091A (en) | Industrial concentrated brine zero-discharge treatment process and device | |
| CN106145487A (en) | A kind of technique processing rare-earth trade high-concentration ammonia nitrogenous wastewater reuse | |
| CN205473146U (en) | Strong brine crystal separation device of area washing leg | |
| CN106977032A (en) | A kind of band washs the strong brine Crystallization Separation device of leg | |
| CN105080935B (en) | A kind of garbage flying ash cement kiln synergic processing and recycling of water resource utilize system | |
| JP2012161770A (en) | Means for disposing waste liquid and method for disposing and recovering waste liquid | |
| CN108821493A (en) | A kind of Environmentally-frielow-energy-consumptipolycarboxylic low-energy-consumptipolycarboxylic tar refining processing method of sodium sulfate wastewater containing phenol | |
| CN205461054U (en) | Evaporation concentration device | |
| CN201664576U (en) | Apparatus for removing sulfur dioxide in flue gas by ammonia water | |
| CN205472703U (en) | Take strong brine crystal separation device of mother liquor separator | |
| CN101874985B (en) | Film evaporation concentrating method and device | |
| CN104524806B (en) | A kind of hexamethylenamine complete continuous crystallisation production technology and equipments |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170725 |
|
| WD01 | Invention patent application deemed withdrawn after publication |