CN202849082U - Sodium sulfate type bittern mirabilite extraction device - Google Patents
Sodium sulfate type bittern mirabilite extraction device Download PDFInfo
- Publication number
- CN202849082U CN202849082U CN201220475005.6U CN201220475005U CN202849082U CN 202849082 U CN202849082 U CN 202849082U CN 201220475005 U CN201220475005 U CN 201220475005U CN 202849082 U CN202849082 U CN 202849082U
- Authority
- CN
- China
- Prior art keywords
- bittern
- outlet
- entrance
- mirabilite
- freezing
- 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.)
- Expired - Lifetime
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- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 title claims abstract description 65
- 241001131796 Botaurus stellaris Species 0.000 title claims abstract description 40
- 229910052938 sodium sulfate Inorganic materials 0.000 title claims abstract description 29
- 235000011152 sodium sulphate Nutrition 0.000 title claims abstract description 29
- 239000010446 mirabilite Substances 0.000 title abstract 8
- 238000000605 extraction Methods 0.000 title abstract 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000012528 membrane Substances 0.000 claims abstract description 30
- 230000008014 freezing Effects 0.000 claims abstract description 25
- 238000007710 freezing Methods 0.000 claims abstract description 25
- 238000003860 storage Methods 0.000 claims abstract description 17
- 238000001728 nano-filtration Methods 0.000 claims abstract description 14
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 239000000126 substance Substances 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- 239000002002 slurry Substances 0.000 claims abstract description 6
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 40
- 239000012267 brine Substances 0.000 claims description 23
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 23
- 239000003814 drug Substances 0.000 claims description 13
- 239000000243 solution Substances 0.000 claims description 6
- 239000006228 supernatant Substances 0.000 claims description 5
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 229910052799 carbon Inorganic materials 0.000 abstract 3
- 239000007788 liquid Substances 0.000 description 8
- 239000000047 product Substances 0.000 description 7
- 150000003839 salts Chemical class 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 235000010333 potassium nitrate Nutrition 0.000 description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 229910052736 halogen Inorganic materials 0.000 description 3
- 150000002367 halogens Chemical class 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 229910021645 metal ion Inorganic materials 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- PANBYUAFMMOFOV-UHFFFAOYSA-N sodium;sulfuric acid Chemical compound [Na].OS(O)(=O)=O PANBYUAFMMOFOV-UHFFFAOYSA-N 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a sodium sulfate type bittern mirabilite extraction device which comprises a bittern storage pool, a bittern chemical reaction tank, a settling pond, a tubular membrane filter, an active carbon filter, a nanofiltration membrane device, a freezing crystallizer and a centrifugal machine, wherein an inlet of the bittern storage tank is connected with a chemical dosing machine; an outlet of the bittern storage tank is connected with an inlet of the bittern chemical reaction tank through a first pump; an outlet of the bittern chemical reaction tank is connected with an inlet of the settling pond; a supernate outlet of the settling pond is connected with an inlet of the tubular membrane filter; a supernate outlet of the tubular film filter is connected with an inlet of the active carbon filter through a second pump; an outlet of the active carbon filter is connected with an inlet of the nanofiltration membrane device; a concentrated solution outlet of the nanofiltration membrane device is connected with an inlet of the freezing crystallizer; a mirabilite slurry outlet of the freezing crystallizer is connected with an inlet of the centrifugal machine, and a mirabilite outlet of the centrifugal machine is connected with a mirabilite storage pond. The sodium sulfate type bittern mirabilite extraction device also comprises a chemical dosing system and a cooling system, wherein the chemical dosing system is connected with the chemical reaction tank and the cooling system carries out heat exchange with the freezing crystallizer through a pipeline and a circulating pump. According to the sodium sulfate type bittern mirabilite extraction device, the mirabilite extraction efficiency is increased, and the energy consumption is reduced.
Description
Technical field
The utility model relates to a kind of device that extracts saltcake from sodium sulphate type bittern.
Background technology
The raw brine of China's well mine salt industry is divided into sodium sulfate type and calcium sulfate type substantially, and sodium sulphate type bittern occupies sizable proportion.In sodium sulphate type bittern, contain the NaCl except main, also contain more Na
2SO
4With a small amount of CaSO
4, MgSO
4Deng impurity.Because Ca
2+, Mg
2+, SO
4 2-Existence so that fouling on the evaporator heating surface of salt making equipment, cause vaporizer heat exchange vaporization efficiency to reduce, energy expenditure improves, and needs the frequent cleaning layer of scale, power lifetime is few and wasted the energy.In addition, owing to the existence of various impurity, reduced the quality of finished product salt.At present, the sodium sulphate type bittern method of carrying nitre mainly contains two kinds of cold method and Re Fa.Although cold method is used over half a century on China's salt industry, because it is that whole bittern are carried out frozen saltpeter mention, and the sodium sulfate concentration of bittern is low, causes and puies forward the nitre inefficiency, and energy consumption is high, investment is large.Hot method is carried nitre and then had following defective: 1, the of poor quality of anhydrous sodium sulphate product appears in the meeting in service at device, the smart nitre of output also to need to carry out recrystallize and processes; 2, the easy fouling of preheater is stopped up; Salt adding amount lacks effective control device etc. when 3, saltouing.At present, most of saltworks take the way of the old halogen of venting part to reduce foreign matter content in the smart halogen.Way can be drained the sodium sulfate that has Important Economic to be worth when waste material like this, and the raw brine consumption of salt per ton is increased, thereby reduced the working life of halogen well.
The utility model content
The purpose of this utility model is to overcome the defective of above-mentioned prior art, provides a kind of sodium sulphate type bittern to carry the nitre device, and this device is removed first Ca in the raw brine
2+, Mg
2+Carry out again frozen saltpeter mention Deng behind metal ion, the concentrated sodium sulfate that obtains high density, improved the efficient of carrying nitre, reduced production cost, and the quality of the nitre that extracts is high, has increased the economic benefit of enterprise.
For achieving the above object, the utility model adopts following technical scheme:
Sodium sulphate type bittern is carried the nitre device, it comprises bittern storage pond, the Brine Chemistry reactive tank, settling tank, the tubular membranes strainer, activated charcoal filter, nano-filtration membrane equipment, the freezing and crystallizing device, whizzer, the entrance in bittern storage pond also connects a chemicals feeder, the outlet in bittern storage pond is connected with the entrance of Brine Chemistry reactive tank by the first pump, the outlet of Brine Chemistry reactive tank is connected with the entrance of settling tank, the supernatant liquor outlet of settling tank is connected with the entrance of tubular membranes strainer, the purified liquor outlet of tubular membranes strainer is connected with the entrance of activated charcoal filter by the second pump, the outlet of activated charcoal filter is connected with the cartridge filter entrance of nano-filtration membrane equipment, the concentrated solution outlet of nano-filtration membrane equipment is connected with the entrance of freezing and crystallizing device, the nitre slurry outlet of freezing and crystallizing device is connected with the entrance of whizzer, the saltcake outlet of whizzer is connected with saltcake storage pond, also comprise medicine system and cooling system, described medicine system is connected with the Brine Chemistry reactive tank, and described cooling system carries out heat exchange by pipeline and recycle pump and freezing and crystallizing device.
Preferably, also be provided with Buffer Pool between tubular membranes strainer and activated charcoal filter, clear liquid is first through carrying out the activated charcoal filter filtration, purification after the Buffer Pool buffering again.
In order to satisfy the needs that add two or more chemical reagent in the Brine Chemistry reactive tank, be provided with the plural medicine storing pot that is connected with the Brine Chemistry reactive tank respectively in the described medicine system.
Preferably, the discharge channel of described whizzer is connected with the entrance of the 3rd pump with the freezing and crystallizing device by pipeline, also contain tiny saltcake in the parting liquid behind the whizzer product nitre, parting liquid returned crystallization is the finished product saltcake in the freezing and crystallizing device, reduce the waste of resource, improved the nitre rate of putting forward of raw brine.
Preferably, the nitre device of carrying of sodium sulphate type bittern of the present invention also comprises pressure filter, and described settling tank is connected with the entrance of pressure filter with slush pump by pipeline.
Compared with prior art, the beneficial effects of the utility model are:
Before the freezing and crystallizing device, be provided with Brine Chemistry reactive tank, settling tank, tubular membranes strainer, activated charcoal filter, nano-filtration membrane equipment, bittern concentrates through chemical precipitation removal calcium, magnesium metal ion first again, obtain the sodium sulfate concentrated solution of high density, again the sodium sulfate concentrated solution of high density carried out frozen saltpeter mention, improved and put forward nitre efficient, saved energy consumption; In addition, nitre slurry parting liquid also is sent to freezing and crystallizing device frozen saltpeter mention, has improved the nitre rate of putting forward of raw brine, reduces the wasting of resources, increases the economic benefit of enterprise.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Please refer to Fig. 1, sodium sulphate type bittern of the present utility model is carried the nitre device, it comprises bittern storage pond 1, Brine Chemistry reactive tank 2, settling tank 3, tubular membranes strainer 4, activated charcoal filter 5, nano-filtration membrane equipment 6, freezing and crystallizing device 7, whizzer 8, the entrance in bittern storage pond 1 also connects a chemicals feeder 13, the outlet in bittern storage pond 1 is connected with the entrance of Brine Chemistry reactive tank 2 by the first pump 12, the outlet of Brine Chemistry reactive tank 2 is connected with the entrance of settling tank 3, the supernatant liquor outlet of settling tank 3 is connected with the entrance of tubular membranes strainer 4, the purified liquor outlet of tubular membranes strainer 4 is connected with the entrance of activated charcoal filter 5 by the second pump 45, the outlet of activated charcoal filter 5 is connected with the cartridge filter entrance of nano-filtration membrane equipment 6, the concentrated solution outlet of nano-filtration membrane equipment 6 is connected with the entrance of freezing and crystallizing device 7, the nitre slurry outlet of freezing and crystallizing device 7 is connected with the entrance of whizzer 8, the saltcake outlet of whizzer 8 is connected with saltcake storage pond 9, also comprise medicine system 14 and cooling system 10, described medicine system 14 is connected with Brine Chemistry reactive tank 2, and described cooling system 10 carries out heat exchange by pipeline and recycle pump 11 with freezing and crystallizing device 7.
In preferred embodiments, also be provided with the Buffer Pool (not shown) between tubular membranes strainer 4 and activated charcoal filter 5, clear liquid is first through carrying out the activated charcoal filter filtration, purification after the Buffer Pool buffering again.
In order to satisfy the needs that add two or more chemical reagent in the Brine Chemistry reactive tank 2, be provided with the plural medicine storing pot that is connected with chemical reaction groove respectively in the described medicine system 14.
In preferred embodiments, the discharge channel of described whizzer 8 is connected with the entrance of freezing and crystallizing device 7 with the 3rd pump 15 by pipeline, also contain tiny saltcake in the parting liquid behind the whizzer product nitre, parting liquid returned crystallization is the finished product saltcake in the freezing and crystallizing device, reduce the waste of resource, improved the nitre rate of putting forward of raw brine.
In preferred version, sodium sulphate type bittern of the present utility model is carried the nitre device and is also comprised the pressure filter (not shown), and described settling tank is connected with the entrance of pressure filter with slush pump by pipeline.
Principle of work of the present utility model is as follows:
Except containing NaCl, also contain more Na in the raw material sulphuric acid sodium type bittern
2SO
4With a small amount of CaSO
4, MgSO
4In impurity and a large amount of microorganism, utilize chemicals feeder 13 in bittern storage pond 1, to pass into strong oxidizer, kill the microorganism in the bittern; Then medicine system 14 adds energy and Ca in Brine Chemistry reactive tank 2
2+, Mg
2+Metal ion generates the chemical agent of sedimentable matter, sedimentable matter is stayed in the settling tank 3, supernatant liquor is removed molecule in the supernatant liquor by tubular membranes strainer 4, clear liquid is by behind activated charcoal filter 5 filtration, purifications, concentrate through nano-filtration membrane equipment 6 again, the high concentration sodium sulfate concentrated solution that obtains frozen saltpeter mention in freezing and crystallizing device 7, sodium sulfate becomes crystal and separates out, carry out the nitre slurry by whizzer 8 at last and separate, obtained saltcake.Because freezing treatment is the sodium sulfate of high density, has improved the efficient of carrying nitre, also improved the quality of finished product nitre simultaneously, increased the economic benefit of enterprise.
Above-described embodiment only is preferred implementation of the present utility model; can not limit protection domain of the present utility model with this, the variation of any unsubstantiality that those skilled in the art does on basis of the present utility model and replacement all belong to protection domain of the present utility model.
Claims (5)
1. sodium sulphate type bittern is carried the nitre device, it is characterized in that: comprise bittern storage pond, the Brine Chemistry reactive tank, settling tank, the tubular membranes strainer, activated charcoal filter, nano-filtration membrane equipment, the freezing and crystallizing device, whizzer, the entrance in bittern storage pond also connects a chemicals feeder, the outlet in bittern storage pond is connected with the entrance of Brine Chemistry reactive tank by the first pump, the outlet of Brine Chemistry reactive tank is connected with the entrance of settling tank, the supernatant liquor outlet of settling tank is connected with the entrance of tubular membranes strainer, the purified liquor outlet of tubular membranes strainer is connected with the entrance of activated charcoal filter by the second pump, the outlet of activated charcoal filter is connected with the entrance of nano-filtration membrane equipment, the concentrated solution outlet of nano-filtration membrane equipment is connected with the entrance of freezing and crystallizing device, the nitre slurry outlet of freezing and crystallizing device is connected with the entrance of whizzer, the saltcake outlet of whizzer is connected with saltcake storage pond, also comprise medicine system and cooling system, described medicine system is connected with chemical reaction groove, and described cooling system carries out heat exchange by pipeline and recycle pump and freezing and crystallizing device.
2. sodium sulphate type bittern as claimed in claim 1 is carried the nitre device, it is characterized in that: also be provided with Buffer Pool between tubular membranes strainer and activated charcoal filter.
3. sodium sulphate type bittern as claimed in claim 1 is carried the nitre device, it is characterized in that: be provided with the plural medicine storing pot that is connected with the Brine Chemistry reactive tank respectively in the described medicine system.
4. sodium sulphate type bittern as claimed in claim 1 is carried the nitre device, it is characterized in that: the discharge channel of described whizzer is connected with the entrance of the 3rd pump with the freezing and crystallizing device by pipeline.
5. sodium sulphate type bittern as claimed in claim 1 is carried the nitre device, it is characterized in that: also comprise pressure filter, described settling tank is connected with the entrance of pressure filter with slush pump by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220475005.6U CN202849082U (en) | 2012-09-17 | 2012-09-17 | Sodium sulfate type bittern mirabilite extraction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220475005.6U CN202849082U (en) | 2012-09-17 | 2012-09-17 | Sodium sulfate type bittern mirabilite extraction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202849082U true CN202849082U (en) | 2013-04-03 |
Family
ID=47980302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220475005.6U Expired - Lifetime CN202849082U (en) | 2012-09-17 | 2012-09-17 | Sodium sulfate type bittern mirabilite extraction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202849082U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104030319A (en) * | 2014-05-23 | 2014-09-10 | 中盐金坛盐化有限责任公司 | Brine desulphurization system and method |
| CN104118961A (en) * | 2013-04-26 | 2014-10-29 | 玉米产品开发股份有限公司 | Method for removing sodium sulfate from biologically-treated wastewater |
| CN105480990A (en) * | 2016-01-30 | 2016-04-13 | 上海力脉环保设备有限公司 | Equipment and method for preparing anhydrous sodium sulfate |
-
2012
- 2012-09-17 CN CN201220475005.6U patent/CN202849082U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104118961A (en) * | 2013-04-26 | 2014-10-29 | 玉米产品开发股份有限公司 | Method for removing sodium sulfate from biologically-treated wastewater |
| CN104118961B (en) * | 2013-04-26 | 2016-12-28 | 玉米产品开发股份有限公司 | Sodium sulfate is removed from the waste water after biological treatment |
| CN104030319A (en) * | 2014-05-23 | 2014-09-10 | 中盐金坛盐化有限责任公司 | Brine desulphurization system and method |
| CN105480990A (en) * | 2016-01-30 | 2016-04-13 | 上海力脉环保设备有限公司 | Equipment and method for preparing anhydrous sodium sulfate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130403 |