CN110372010A - A method of seawater, which is carried out, using porous ceramic plate evaporates brine - Google Patents
A method of seawater, which is carried out, using porous ceramic plate evaporates brine Download PDFInfo
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- CN110372010A CN110372010A CN201910729191.8A CN201910729191A CN110372010A CN 110372010 A CN110372010 A CN 110372010A CN 201910729191 A CN201910729191 A CN 201910729191A CN 110372010 A CN110372010 A CN 110372010A
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- seawater
- ceramic plate
- porous ceramic
- porous
- brine
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- 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
- C01D3/04—Chlorides
- C01D3/06—Preparation by working up brines; seawater or spent lyes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/133—Renewable energy sources, e.g. sunlight
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The present invention is a kind of method evaporated brine using porous ceramic plate progress seawater, specifically: the porous ceramic plate after absorbing seawater evaporates the moisture in its hole using the effect of daylight and wind-force, analyzes to salt；A certain amount of seawater repeated flushing porous ceramic plate is added, so that the seawater salt content after rinsing is reached 15 ~ 26%, salt manufacturing is concentrated.Porous heat absorption ceramic wafer in the present invention has superior solar radiation absorptivity, it can be very good to absorb solar radiant energy, with good thermal conductivity, it has two dimension or three-dimensional connectivity structure, air flow resistance can be made small, being uniformly distributed and stablize conducive to air stream, with high specific surface area, guarantee that material has big heat exchange area, using porous heat absorption ceramic wafer as evaporation medium, it is big to solve tradition method evaporation tank volume of evaporating brine, seawater volatilizees slow problem, shortens seawater and evaporates brine the period.
Description
Technical field
It evaporates brine field the present invention relates to evaporation of seawater, in particular to it is a kind of that the side that seawater is evaporated brine is carried out using porous ceramic plate
Method.
Background technique
It is a kind of traditional and ancient method that salt is extracted from seawater, and is still continued to use extensively so far.First seawater is drawn
Enter evaporation tank, when using daylight and wind-force evaporation water to a certain extent, then pour into crystallizing pond, continue solarization, seawater will be at
It for the saturated solution of salt, then shines salt will gradually be precipitated, the crystal at this moment obtained is exactly our common crude salts, remaining
Liquid be known as mother liquor, can therefrom extract multiple industrial chemicals, such as potassium, magnesium, bromine and the valuable mineral of sulfate.
Traditional salt-sunning method is to open up salt pan coastal, by salt pan natural evaporation gradually by bittern evaporation to a certain concentration
Afterwards, it goes to crystallization in crystallizing pond and crude salt is precipitated.Influence evaporation because being known as temperature, area, wind speed and direction, bittern concentration, sky
Air humidity degree.Conventional method is evaporated brine due to only carrying out in evaporation pool surface, and disengagement area is small, in order to expand yield, is generally required big
The occupied area of amount, period of evaporating brine are long.As saltworks enhances production capacities, coastal land occupation constantly expands, and with coastal land resource
It is gradually in short supply, inefficient salt-sunning method has been unable to satisfy the development of salt industry.
Porous ceramic plate be it is a kind of through high temperature firing, internal have a large amount of mutually the same and also connect with material surface
The ceramic material of cellular structure.There are many type of porous ceramics, develop at present and all ceramic materials of production almost can be with
Porous body is made by technique appropriate.Porous ceramic film material is developed in 19 century 70s, and initial stage is only used as bacteriological filter material
Material uses.With the raising of pore structure level, its superiority is also increasingly enhanced.Porous ceramics is because resistance to chemical attack, resistance to
Mill has good high-temperature stability and Electrothermal Properties, and large specific surface area, pore distribution are more uniform, and pore size is controllable etc.
Advantage, its application has spread the multiple fields such as environmental protection, energy conservation, chemical industry, petroleum, smelting, food, pharmacy, biomedicine at present, draws
The highest attention of global material educational circles is played.
Porous heat absorption ceramics are a kind of widely used porous ceramic film materials, and main material has aluminium oxide, violet green
Stone, silicon carbide and silicon nitride, especially silicon nitride and carbofrax material, with thermal coefficient, high, good inoxidizability, is used in combination
The advantages such as thermal coefficient is high, thermal expansion coefficient is low, wearability is good and material is light, have been applied to solar energy thermal-power-generating core
Part.
Summary of the invention
To solve the problems such as evaporation pool area existing in the prior art is big, evaporation is slow, and the salt manufacturing period is long, the present invention is mentioned
A kind of method evaporated brine using porous ceramic plate progress seawater is supplied.
A method of seawater is carried out using porous ceramic plate and is evaporated brine, i.e., are as follows: the porous ceramic plate after absorbing seawater utilizes
The effect of daylight and wind-force evaporates the moisture in its hole, analyzes to salt；It is porous that a certain amount of seawater repeated flushing is added
Ceramic wafer makes the seawater salt content after rinsing reach 15 ~ 26%, salt manufacturing is concentrated.
Preferably, the seawater salt content after the flushing reaches 22 ~ 26%, at this concentration, effectively shortens seawater
Evaporation time, seawater can quickly reach crystalline temperature.
Preferably, the porous ceramic plate is porous heat absorption ceramic wafer, the endothermic effect of porous ceramics, when sunlight irradiates
When on porous ceramics, makes porous ceramics heat absorption heating, accelerate the evaporation of seawater moisture in ceramic hole, salt is made to accelerate crystallization.
Preferably, the purging method be high pressure sea water purging method and vacuum filtration one of purging method with
On.
Preferably, the porosity 40 ~ 70% of the porous ceramic plate, aperture are 0.2 ~ 1mm, and porous ceramic plate is full of hole
Gap, it is ensured that the dispersion of seawater, aperture are 0.2 ~ 1 mm, and seawater can be automatically drawn into or penetrate into hole, reach water-absorbing-retaining
Purpose.
Preferably, the water absorption rate of the porous ceramic plate is 35 ~ 65%.
Preferably, the initial salt content of the seawater is 2 ~ 5%.
There is two dimension or three-dimensional connectivity structure in the porous ceramic plate in the present invention, air flow resistance can be made small, be conducive to sky
Air-flow is uniformly distributed and stablizes, and has high specific surface area, guarantees that material has big heat exchange area, guarantees the abundant of moisture
Volatilization, improve the rate that seawater is evaporated brine, using porous heat absorption ceramic wafer as evaporate medium, solve tradition evaporate brine method evaporate
Pond body product is big, and seawater volatilizees slow problem, shortens seawater and evaporates brine the period.
Beneficial effect
1, porous heat absorption ceramic wafer has superior solar radiation absorptivity, can be very good to absorb solar radiant energy, have
Good thermal conductivity can absorb sunlight, be conducive to the volatilization of moisture in hole.
2, porous heat absorption ceramic wafer has two dimension or three-dimensional connectivity structure, and air flow resistance can be made small, be conducive to air stream
Be uniformly distributed and stablize, there is high specific surface area, guarantee that material has big heat exchange area, guarantee sufficiently waving for moisture
Hair.
3, the present invention is using porous heat absorption ceramic wafer as medium is evaporated, and it is big to solve tradition method evaporation tank volume of evaporating brine,
Seawater volatilizees slow problem, shortens seawater and evaporates brine the period.
Specific embodiment
It elaborates below to the embodiment of the present invention, the present embodiment carries out under the premise of the technical scheme of the present invention
Implement, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to following implementation
Example.
Following embodiments carry out in 4 ~ June of spring, and temperature gos up fast at this time, and rainy season not yet arrives, and rainfall is few, Er Qiechun
Season dry weather, wind-force is big, address be Shandong Rizhao seabeach near, ground be laid with black antiseepage film, prevent seawater and bittern
Infiltration, the rinse-system in embodiment is made of reservoir, water circulating pipe, high-pressure spray device and Vacuum filtration device,
High-pressure spray device is located at the top of reservoir, and one end of water circulating pipe is connected to below reservoir, and the other end connects high pressure
Seawater in reservoir is transported in the high-pressure spray device of top by spray equipment, and vacuum pump is mounted in reservoir, will be rushed
Seawater during washing in porous ceramic plate, which filters, to be sucked out, and the seawater of reservoir is introduced into crystallizing pond the system that is concentrated after flushing
Salt.
Embodiment 1
It is 100 × 50 × 30 cm by 10 blocks product, porosity 50%, the porous suction that aperture is 0.2 ~ 1 mm, water absorption rate is 35%
Thermal Ceramics plate impregnates 5 minutes in the seawater that salt content is 3.18%, is transferred on seabeach after immersion, in the work of daylight and wind-force
Make the moisture evaporation in porous heat absorption ceramic wafer hole under, porous heat absorption ceramic wafer is put in the upper of reservoir 1 after 6 hours
Porous heat absorption ceramic wafer, porous heat absorption in flushing process are rinsed using 0.1 cubic metre of seawater and using high-pressure spray device by side
The seawater that ceramic wafer absorbs is pumped out with vacuum, repeated flushing and suction, is stored after 10 pieces of porous heat absorption ceramic wafers rinse
Seawater salt content in pond reaches 18.2%, is introduced into crystallizing pond and salt manufacturing is concentrated.
Embodiment 2
It is 100 × 50 × 30 cm by 12 blocks product, porosity 65%, the porous suction that aperture is 0.2 ~ 1 mm, water absorption rate is 50%
Thermal Ceramics plate impregnates 8 minutes in the seawater that salt content is 3.18%, is transferred on seabeach after immersion, in the work of daylight and wind-force
Make the moisture evaporation in porous heat absorption ceramic wafer hole under, porous heat absorption ceramic wafer is put in the upper of reservoir 1 after 7 hours
Porous heat absorption ceramic wafer, porous suction in flushing process are rinsed using 0.14 cubic metre of seawater and using high-pressure spray device by side
The seawater that thermal Ceramics plate absorbs is pumped out with vacuum, repeated flushing and suction, after 10 pieces of porous heat absorption ceramic wafers rinse
Seawater salt content in reservoir reaches 23.1%, is introduced into crystallizing pond and salt manufacturing is concentrated.
Embodiment 3
It is 100 × 50 × 30 cm by 10 blocks product, porosity 70%, the porous suction that aperture is 0.2 ~ 1 mm, water absorption rate is 65%
Thermal Ceramics plate impregnates 5 minutes in the seawater that salt content is 3.18%, is transferred on seabeach after immersion, in the work of daylight and wind-force
Make the moisture evaporation in porous heat absorption ceramic wafer hole under, porous heat absorption ceramic wafer is put in the upper of reservoir 1 after 8 hours
Porous heat absorption ceramic wafer, porous suction in flushing process are rinsed using 0.14 cubic metre of seawater and using high-pressure spray device by side
The seawater that thermal Ceramics plate absorbs is pumped out with vacuum, repeated flushing and suction, after 10 pieces of porous heat absorption ceramic wafers rinse
Seawater salt content in reservoir 1 reaches 24.6%, is introduced into crystallizing pond and salt manufacturing is concentrated.
Embodiment 4
It is 100 × 50 × 30 cm by 12 blocks product, porosity 40%, the porous suction that aperture is 0.2 ~ 1 mm, water absorption rate is 45%
Thermal Ceramics plate impregnates 8 minutes in the seawater that salt content is 3.18%, is transferred on seabeach after immersion, in the work of daylight and wind-force
Make the moisture evaporation in porous heat absorption ceramic wafer hole under, porous heat absorption ceramic wafer is put in the upper of reservoir 1 after 7 hours
Porous heat absorption ceramic wafer, porous suction in flushing process are rinsed using 0.12 cubic metre of seawater and using high-pressure spray device by side
The seawater that thermal Ceramics plate absorbs is pumped out with vacuum, repeated flushing and suction, after 12 pieces of porous heat absorption ceramic wafers rinse
Seawater salt content in reservoir reaches 21.6%, is introduced into crystallizing pond and salt manufacturing is concentrated.
Claims (7)
1. a kind of carry out the method that seawater is evaporated brine using porous ceramic plate, which is characterized in that the porous ceramic plate after absorbing seawater
Effect using daylight and wind-force evaporates the moisture in its hole, analyzes to salt；A certain amount of seawater repeated flushing is added
Porous ceramic plate makes the seawater salt content after rinsing reach 15 ~ 26%, salt manufacturing is concentrated.
2. according to claim 1 carry out the method that seawater is evaporated brine using porous ceramic plate, which is characterized in that described rushes
Washing method is one or more of high pressure sea water purging method and vacuum filtration purging method.
3. according to claim 1 carry out the method that seawater is evaporated brine using porous ceramic plate, which is characterized in that the flushing
Seawater salt content afterwards is 22 ~ 26%.
4. according to claim 1 carry out the method that seawater is evaporated brine using porous ceramic plate, which is characterized in that described is more
Hole ceramic wafer is porous heat absorption ceramic wafer.
5. a kind of method evaporated brine using porous ceramic plate progress seawater according to claim 1, which is characterized in that described
The porosity 40 ~ 70% of porous ceramic plate, aperture are 0.2 ~ 1mm.
6. a kind of method evaporated brine using porous ceramic plate progress seawater according to claim 1, which is characterized in that described
Porous ceramic plate water absorption rate be 35 ~ 65%.
7. according to claim 1 carry out the method that seawater is evaporated brine using porous ceramic plate, which is characterized in that the seawater
Salt content be 2 ~ 5%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910729191.8A CN110372010B (en) | 2019-08-08 | 2019-08-08 | Method for drying salt in the sun by using porous ceramic plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910729191.8A CN110372010B (en) | 2019-08-08 | 2019-08-08 | Method for drying salt in the sun by using porous ceramic plate |
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| CN110372010A true CN110372010A (en) | 2019-10-25 |
| CN110372010B CN110372010B (en) | 2020-11-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111320467A (en) * | 2020-02-26 | 2020-06-23 | 福建师范大学泉港石化研究院 | Porous ceramic plate for solar production of iodized salt and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1636876A (en) * | 2004-12-14 | 2005-07-13 | 天津大学 | Capillary porous material reinforced water evaporating and chromatographic separating process |
| CN102320626A (en) * | 2011-08-01 | 2012-01-18 | 冯静 | Facilities for enlarging evaporation area and increasing solar salt yield |
-
2019
- 2019-08-08 CN CN201910729191.8A patent/CN110372010B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1636876A (en) * | 2004-12-14 | 2005-07-13 | 天津大学 | Capillary porous material reinforced water evaporating and chromatographic separating process |
| CN102320626A (en) * | 2011-08-01 | 2012-01-18 | 冯静 | Facilities for enlarging evaporation area and increasing solar salt yield |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111320467A (en) * | 2020-02-26 | 2020-06-23 | 福建师范大学泉港石化研究院 | Porous ceramic plate for solar production of iodized salt and preparation method thereof |
| CN111320467B (en) * | 2020-02-26 | 2022-03-22 | 福建师范大学泉港石化研究院 | Porous ceramic plate for solar production of iodized salt and preparation method thereof |
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| CN110372010B (en) | 2020-11-24 |
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