CN101928018A - Method for abstracting crude salt from seawater - Google Patents
Method for abstracting crude salt from seawater Download PDFInfo
- Publication number
- CN101928018A CN101928018A CN2009100537133A CN200910053713A CN101928018A CN 101928018 A CN101928018 A CN 101928018A CN 2009100537133 A CN2009100537133 A CN 2009100537133A CN 200910053713 A CN200910053713 A CN 200910053713A CN 101928018 A CN101928018 A CN 101928018A
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- China
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- energy
- seawater
- crude salt
- abstracting
- extraction slot
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/138—Water desalination using renewable energy
- Y02A20/141—Wind power
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/208—Off-grid powered water treatment
- Y02A20/212—Solar-powered wastewater sewage treatment, e.g. spray evaporation
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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
Abstract
The invention discloses a method for abstracting crude salt from seawater, which comprises the following steps: (1) introducing seawater to an abstracting tank, airing in the sun to carry out preliminary concentration by means of solar energy and/or wind energy, and simultaneously unclosing a tank cover with a solar panel on the abstracting cover to collect solar energy and convert the solar energy to other storable energy; and (2) when solar energy and/or wind energy are/is unavailable, closing the solar panel on the abstracting tank to convert the stored energy to electric energy, heating the concentrated seawater in the abstracting tank for further concentration so as to separate out the crude salt from the seawater, and separating crude salt crystals and the solution. The method can effectively utilize solar energy, has low production cost and has favorable economic benefits and environmental benefits, thereby opening up a new way for the abstraction of the crude salt.
Description
[technical field]
The present invention relates to the technical field that salt refines, a kind of specifically from seawater the method for abstracting crude salt.
[background technology]
Crude salt is one of three big topmost raw materials, occupies in inorganic chemical product and consequence.Crude salt production now can be divided into four kinds of methods: 1. with surface mining or the underground molten method exploitation rock salt that soaks.2. by salt lake exploitation auto-deposition lake salt.3. seawater and salt lake saline are produced sea salt and lake salt through the salt pan Exposure to Sunlight.4. produce from natural bittern with artificial infusion or the vacuum method of steaming.Exploitation rock salt and deposition lake salt can damage local ecotope, and these destructions are inevitably, also are to reverse.Infusion or vacuum are steamed method needs to consume lot of energy and equipment aborning, not environmental protection, and productive rate is low.By the salt pan abstracting crude salt, though production cost is cheaper, also need to depend on weather condition, the time is longer.
Sun power (Solar) refers generally to the quantity of radiant energy of sunlight.Become the nuclear reaction of helium what solar interior carried out by fusion of hydrogen, ceaselessly discharge huge energy, and constantly to the outer space quantity of radiant energy, this energy is exactly a sun power.The sun is 3.8 * 10 to outer space radiation emitted power
23The radiation value of kW, wherein 1/2000000000th arrival point ball atmospheric layer.Arrive in the atmospheric sun power of the earth, 47% arrives earth surface, and its power is 80,000,000,000,000 kW, that is to say that the sun shines the tellurian energy heat that 5,000,000 tons of coals discharge that just is equivalent to burn p.s..If it is passable that sun power can utilize widely, the then available energy will increase greatly, and the environmental problem that other Nonrenewable energy resources such as coal, oil etc. in use can produce can will significantly reduce.
Among the Chinese invention patent ublic specification of application CN101139724A, a kind of hydrochloric acid caustic soda manufacture craft is disclosed, comprise sodium-chlor, water, adopt solar panel to utilize solar power generation, and with high temperature the salinity of seawater is concentrated and to improve concentration, the salt solution to high density carries out electrolysis then, generates sodium hydroxide, hydrogen and chlorine, making hydrogen and chlorine chemical combination generate hydrogenchloride, obtain hydrochloric acid and caustic soda so simultaneously.Fine in theoretical this method, but in actual production, exist very big problem, the one, energy consumption consumption is too big, and the 2nd, serious to environment damage.
At present, be the sun power majority to convert heat energy or electric energy to, the return rate of its use is lower.If can be in the production of abstracting crude salt with Application of Solar Energy, the production cost of crude salt can significantly descend so, the price that with crude salt is the product of raw materials for production simultaneously also can decline to a great extent, and this development to any one country all has very big promotion power.
[summary of the invention]
Main purpose of the present invention be to provide a kind of new from seawater the method for abstracting crude salt, use this method and can produce crude salt by lower production cost.
In order to achieve the above object, design a kind of from seawater the method for abstracting crude salt, it is characterized in that this method adopts the following step: introduce seawater in the extraction slot (1), place under the sun exposure, utilize sun power and/or wind energy to carry out preliminary concentrating, open the groove lid that solar panels are arranged on the extraction slot simultaneously, collect sun power and convert thereof into other storable energy; When (2) waiting not have sun power and/or wind energy and can use, close the solar panels on the extraction slot, convert energy stored to electric energy, concentrated seawater in the extraction slot is heated, it is further concentrated, crude salt is separated out from seawater, separate crude salt crystal and solution.
The extraction slot that is used to handle seawater is a metal system protection against corrosion groove, the anticorrosion groove of described metal system is a box-like structure, after opening the groove lid, bottom at the groove lid is provided with solar panels, be provided with heating unit in the inner chamber of cell body, solar panels link to each other with the energy storage device lead, and the other end of energy storage device links to each other with the heating installation lead.One of groove lid and cell body composition complete, stopping property good metal system protection against corrosion groove.
The energy that solar panels are collected changes into the form of other energy, stores earlier, changes into the form of energy that is suitable for mutually when need waiting again.Sun power is the energy that cleans the most in the world, also is the most inexhaustible energy.The bottom of groove lid is provided with solar panels, when seawater being placed under the environment at sunshine, carries out preliminaryly when concentrated, and the groove of extraction slot covers the solar panels of dress and opens simultaneously, is used to collect sun power.The extraction slot that is used to handle seawater need adopt metal system protection against corrosion groove.Seawater is equivalent to electrolyte solution and metal trough can be formed battery and the electrochemical reaction corroding metal takes place, and method protection extraction slots such as galvanic protection or sprayed protection coating can be set.
On the inwall of extraction slot heating installation is housed, is used for seawater is heated.The groove lid needs good sealing property, and stopping property is good more, and the energy that loses in whole process is just few more.When the energy that stores can not satisfy when adding the hot sea water energy needed, can external electric energy or other form energies such as heat energy, so that enough energy to be provided, as heat energy, luminous energy, potential energy etc.
Solar panels link to each other with the energy storage device lead, and the other end of energy storage device links to each other with the heating installation lead.Running gear is equipped with in bottom at the protection against corrosion groove, can be convenient to moving of protection against corrosion groove.
The present invention compared with prior art can be used for abstracting crude salt to the sun power of salt field effectively more efficiently, the source of selecting for use the energy of cleaning, environmental protection to make to produce energy, and production cost is lower, but the existing needs of producing are satisfied in uninterrupted duty.
[description of drawings]
Further describe below in conjunction with the drawings and the specific embodiments.
Fig. 1 be the present invention a kind of from seawater the process flow sheet of the method for abstracting crude salt.
Fig. 2 is that the present invention is used for extraction slot sketch and the device connection diagram from the seawater abstracting crude salt.
Fig. 3 is that sun power utilizes the process sketch.
Among the figure: 1 solar panels that cover for groove, 2 is the vapour pipe of heating unit, and 3 is shifting roller, and 4 is energy storage device.
[embodiment]
Technical process is as shown in Figure 1 introduced seawater in the extraction slot with pump or other method earlier.Extraction slot is placed under the sun exposure, utilizes illumination and/or wind that seawater is done preliminary concentrating, open the solar panels that extraction slot covers simultaneously, with the solar energy converting electrical power storage in store battery.Treat that when no sun power can use the groove lid of solar panels is arranged on the extraction slot that closes, the energy transformation that stores is become electric energy, the concentrated seawater in the extraction slot is heated, make it be heated to boiling.It is further concentrated, crude salt is separated out from seawater, separate crude salt crystal and solution.
If because solar irradiation is inadequate, and when causing energy stored to be not enough to add hot sea water, can select to connect external source, power supply can be used alternating-current, also available direct current again.
Fig. 2 shown be, cover at the extraction slot groove and be provided with solar panels, be used to collect sun power.On the inwall of extraction slot, heating installation is housed.When groove lid and cell body close up, can keep good sealing property in the groove.Stopping property is good more, and energy waste is few more.
What Fig. 3 showed is that sun power utilizes the process sketch, collects sun power by solar panels earlier, and conversion of solar energy is become the form of other energy, store earlier, after energy stored is changed into electric energy, for the required electric energy of heating.
Claims (4)
1. method for abstracting crude salt from seawater is characterized in that this method adopts the following step:
(1) seawater is introduced in the extraction slot, placed under the sun exposure, utilize sun power and/or wind energy to carry out preliminary concentrating, open the groove lid that solar panels are arranged on the extraction slot simultaneously, collect sun power and convert thereof into other storable energy;
When (2) waiting not have sun power and/or wind energy and can use, close the solar panels on the extraction slot, convert energy stored to electric energy, concentrated seawater in the extraction slot is heated, it is further concentrated, crude salt is separated out from seawater, separate crude salt crystal and solution.
2. according to claim 1 from seawater the method for abstracting crude salt, it is characterized in that extraction slot is a metal system protection against corrosion groove, the anticorrosion groove of described metal system is a box-like structure, after opening the groove lid, bottom at the groove lid is provided with solar panels, be provided with heating unit in the inner chamber of cell body, solar panels link to each other with the energy storage device lead, and the other end of energy storage device links to each other with the heating installation lead.
3. according to claim 1 and 2 from seawater the method for abstracting crude salt, it is characterized in that running gear is equipped with in the bottom of extraction slot.
4. according to claim 1 from seawater the method for abstracting crude salt, it is characterized in that other storable energy can not satisfy and add hot sea water when required, can external electric energy or other form energies such as heat energy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100537133A CN101928018A (en) | 2009-06-24 | 2009-06-24 | Method for abstracting crude salt from seawater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100537133A CN101928018A (en) | 2009-06-24 | 2009-06-24 | Method for abstracting crude salt from seawater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101928018A true CN101928018A (en) | 2010-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100537133A Pending CN101928018A (en) | 2009-06-24 | 2009-06-24 | Method for abstracting crude salt from seawater |
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| CN (1) | CN101928018A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102432047A (en) * | 2011-09-05 | 2012-05-02 | 莱州诚源盐化有限公司 | Extracting and zero-discharging method of seawater bittern multi-elements |
| CN105060382A (en) * | 2015-08-07 | 2015-11-18 | 滨化集团股份有限公司 | Method for treating salt-containing wastewater in production process of epoxy propane or epoxy chloropropane and apparatus for implementing method |
-
2009
- 2009-06-24 CN CN2009100537133A patent/CN101928018A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102432047A (en) * | 2011-09-05 | 2012-05-02 | 莱州诚源盐化有限公司 | Extracting and zero-discharging method of seawater bittern multi-elements |
| CN102432047B (en) * | 2011-09-05 | 2013-11-13 | 莱州诚源盐化有限公司 | Extracting and zero-discharging method of seawater bittern multi-elements |
| CN105060382A (en) * | 2015-08-07 | 2015-11-18 | 滨化集团股份有限公司 | Method for treating salt-containing wastewater in production process of epoxy propane or epoxy chloropropane and apparatus for implementing method |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101229 |