CN110372242B - Sea sand desalination pool and use method thereof - Google Patents
Sea sand desalination pool and use method thereof Download PDFInfo
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- CN110372242B CN110372242B CN201910660164.XA CN201910660164A CN110372242B CN 110372242 B CN110372242 B CN 110372242B CN 201910660164 A CN201910660164 A CN 201910660164A CN 110372242 B CN110372242 B CN 110372242B
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/06—Quartz; Sand
- C04B14/068—Specific natural sands, e.g. sea -, beach -, dune - or desert sand
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
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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
- Y02A20/142—Solar thermal; Photovoltaics
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
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Abstract
The invention provides a sea sand desalting pool and a using method thereof, and belongs to the field of sea sand desalting. The sea sand desalination pool provided by the invention fully utilizes solar energy, wind energy and wave energy to push the sea sand desalination pool to operate, and the desalination pool is simple in structure, high-efficiency, environment-friendly, low-carbon and convenient to replace and maintain. The sea sand desalting pond provided by the invention is simple and efficient in use method, fully utilizes solar energy, wind energy and wave energy on the sea surface, and reasonably converts the solar energy, the wind energy and the wave energy into stirring mechanical energy and heat energy required by desalting the sea sand, and as the temperature is higher, the solubility of inorganic salt related to chloride ions is higher and the ions are more active, more chloride ions in the sea sand are dissolved more quickly with the same fresh water amount, so that the sea sand desalting efficiency is effectively improved while the sea sand desalting fresh water is saved, the sea sand desalting cost is obviously reduced, and the sea sand desalting pond has considerable economic benefit and social benefit.
Description
Technical Field
The invention relates to the technical field of sea sand desalination, in particular to a sea sand desalination pool and a using method thereof.
Background
Coastal zones at home and abroad contain abundant sea sand resources, and have great development potential for various engineering constructions. Compared with river sand, river sand and other non-sea sand, sea sand has the unique advantages of low mud content, uniform fineness modulus, low cost and convenient excavation. However, the sea sand has a high content of chloride and shell. Because the market supervision and management are not in place, sand suppliers in coastal zones appear once, and a large amount of undiluted sea sand is managed by taking profit as a purpose. The serious corrosion of the steel bars in the reinforced concrete can be caused due to the over standard content of chloride ions in the sea sand; and the sea sand has high shell content, so that the workability of concrete is deteriorated when the sea sand is directly used, and the strength and the durability of the concrete are also adversely affected. The unqualified sea sand which is not desalted is directly applied to the building engineering, and has brought a lot of harm to the building engineering, so that the practical engineering training is available at home and abroad. In order to reduce the content of chloride and shells in the sea sand and meet the requirement of the sand for engineering construction, the sea sand desalination technology is continuously developed and popularized, and the scientific methods for sea sand desalination are more and more diverse.
Because the building sand on land is very limited, with the continuous promotion of urban construction in China and the implementation of the strategy of the strong ocean, enough innovative research needs to be invested in how to continuously develop and utilize ocean resources under the condition of not damaging the ocean ecological environment as much as possible; the technical problem that how to desalt sea sand efficiently and environmentally is needed to be solved is the technical problem. The prior art (patent: 201410480394.5) discloses a desalination pool and a method for desalinating sea sand by using energy of wave fluctuation, but the internal structure of the desalination pool is slightly complex, the manufacturing cost is high, and the desalination pool is not beneficial to long-term convenient use, replacement and maintenance in the ocean.
Disclosure of Invention
In view of this, the present invention provides a sea sand desalination pool and a method for using the same. The sea sand desalting tank provided by the invention has the advantages of simple structure, environmental protection, low carbon and convenience in maintenance, fully utilizes solar energy, wind energy and wave energy on the sea surface, effectively improves the sea sand desalting efficiency, obviously reduces the sea sand desalting cost, and has considerable economic and social benefits.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a sea sand desalting pool which comprises a sea sand desalting barrel and a solar auxiliary desalting device, wherein the solar auxiliary desalting device is connected with a barrel opening of the sea sand desalting barrel through a detachable connecting piece;
a sea sand desalting platform is arranged in the middle of the sea sand desalting barrel; a wind stirring device is arranged between the sea sand desalting platform and the barrel opening of the sea sand desalting barrel, and the wind stirring device is close to the barrel opening of the sea sand desalting barrel;
and a drain hole is formed in the bottom of the sea sand desalting barrel, and a wave energy stirring device is arranged between the drain hole and the sea sand desalting platform.
Preferably, the solar auxiliary desalter is a concave mirror sunlight collecting heater, the concave mirror sunlight collecting heater comprises a first concave mirror, a second concave mirror and a support, and the mirror surface of the first concave mirror is opposite to the center of the sea sand desalting barrel and is fixed at a position 20mm below the focus position of the second concave mirror through the support; the edge of the first concave mirror is connected with the support; a round hole is formed in the center of the second concave mirror; the radius of the first concave mirror is smaller than the radius of the second concave mirror.
Preferably, the solar auxiliary desalination device is a solar panel electric heater, and the solar panel electric heater comprises a solar panel, a lighting device, an electric storage device, an electric heating rod, an ultrasonic generator, a microwave generator, an electric control device and a bracket; the lighting device, the electric power storage device, the electric heating rod, the ultrasonic generator and the microwave generator are connected with the solar panel through the bracket and the electric control device; the solar panel, the lighting device, the electric power storage device and the electric control device are positioned above the sea sand desalting barrel; the electric heating rod, the ultrasonic generator and the microwave generator are positioned inside the sea sand desalting barrel.
Preferably, the wind power stirring device comprises a windmill, a bearing, a windmill bracket and a wind power stirrer, the windmill is connected with the windmill bracket through the bearing and is connected with the wind power stirrer through the bearing, and the windmill bracket is fixed on the outer side of the sea sand desalting barrel.
Preferably, the wind power agitator is in the shape of a circular arc.
Preferably, the sea sand desalting platform comprises a fixed support and a filter screen; the filter screen is fixed on the fixed support.
Preferably, the aperture of the filter screen is 0.06-0.08 mm.
Preferably, the wave energy stirring device comprises a windmill, a bearing, a windmill support, a transmission shaft and a wave energy stirrer, the windmill is connected with the windmill support through the bearing and is connected with the wave energy stirrer through the transmission shaft, and the windmill support is fixed on the outer side of the sea sand desalting barrel.
Preferably, the windmill support and the transmission shaft are Z-shaped, and the wave energy stirrer is of a broken line type.
The invention also provides a use method of the sea sand desalination pool, which comprises the following steps:
taking down the solar auxiliary desalter, placing a shell impurity filter screen at the opening of the sea sand desalting barrel, injecting the sea sand into the sea sand desalting barrel, and removing the shell impurity filter screen;
closing the drain hole, injecting fresh water through the bucket opening of the sea sand desalting bucket, stopping injecting the fresh water after the wind power stirrer is immersed in the fresh water, and installing the solar auxiliary desalter at the bucket opening of the sea sand desalting bucket;
the invention utilizes the solar auxiliary desalter to heat fresh water, and utilizes the wind stirring device and the wave stirring device to stir sea sand and fresh water, so that the sea sand and the fresh water are fully mixed, a drain hole at the bottom of the sea sand desalting barrel is opened to discharge desalted water, the solar auxiliary desalter is taken down, and the desalted sea sand is taken out.
The sea sand desalination pool provided by the invention fully utilizes the operation of solar energy, wind energy and wave energy pushing devices, is simple in structure, efficient, environment-friendly, low-carbon and convenient to replace and maintain.
The invention also provides a use method of the sea sand desalination pool, which is simple and efficient, fully utilizes solar energy, wind energy and wave energy on the sea surface, and reasonably converts the solar energy, the wind energy and the wave energy into stirring mechanical energy and heat energy required by sea sand desalination.
Drawings
Fig. 1 is a schematic structural diagram of a sea sand desalination pool provided by the present invention, wherein 1 is a solar auxiliary desalination device, specifically a concave mirror sunlight-gathering heater, 2 is a sea sand desalination barrel, 2-1 is a sea sand desalination platform, 2-2 wind power stirring devices, 2-3 drain holes, and 2-4 wave power stirring devices;
FIG. 2 is a schematic structural diagram of a heater for collecting sunlight by a concave mirror in a sea sand desalination pool according to the present invention;
FIG. 3 is a schematic structural view of a solar panel electric heater in the sea sand desalination pool according to the present invention;
fig. 4 is a schematic structural diagram of a sea sand desalination pool provided by the present invention, wherein 1 is a solar auxiliary desalination device, specifically a solar panel electric heater, 2 is a sea sand desalination barrel, 2-1 is a sea sand desalination platform, 2-2 wind stirring devices, 2-3 drain holes, and 2-4 wave stirring devices;
FIG. 5 is a schematic structural diagram of a sea sand desalting tank in the sea sand desalting tank according to the present invention;
FIG. 6 is a schematic structural view of a wind stirring device in the sea sand desalination pool according to the present invention;
fig. 7 is a schematic structural diagram of a wave energy stirring device in the sea sand desalination pool.
Detailed Description
The invention provides a sea sand desalting pool which comprises a sea sand desalting barrel and a solar auxiliary desalting device, wherein the solar auxiliary desalting device is connected with a barrel opening of the sea sand desalting barrel through a detachable connecting piece;
a sea sand desalting platform is arranged in the middle of the sea sand desalting barrel; a wind stirring device is arranged between the sea sand desalting platform and the barrel opening of the sea sand desalting barrel, and the wind stirring device is close to the barrel opening of the sea sand desalting barrel;
and a drain hole is formed in the bottom of the sea sand desalting barrel, and a wave energy stirring device is arranged between the drain hole and the sea sand desalting platform.
The structure of the sea sand desalination pool provided by the invention is described below with reference to fig. 1, wherein 1 is a solar auxiliary desalination device, specifically a concave mirror sunlight-gathering heater, 2 is a sea sand desalination barrel, 2-1 is a sea sand desalination platform, 2-2 wind power stirring devices, 2-3 drain holes, and 2-4 wave power stirring devices.
The sea sand desalination pool provided by the invention comprises a solar auxiliary desalination device; the solar auxiliary desalter is preferably a concave mirror sunlight collecting heater; the concave mirror sunlight-gathering heater comprises a first concave mirror, a second concave mirror and a support, wherein the mirror surface of the first concave mirror is opposite to the center of the sea sand desalting barrel and is fixed at a position 20mm below the focal position of the second concave mirror through the support. In the present invention, the edge of the first concave mirror is connected to the support; a round hole is formed in the center of the second concave mirror; the radius of the first concave mirror is smaller than the radius of the second concave mirror. The radius of the first concave mirror, the radius of the second concave mirror and the size of the circular hole at the center of the second concave mirror are not particularly limited, and the technical personnel in the field can set the sizes according to the actual size of the sea sand desalting barrel. In the invention, the circular hole is formed in the center of the second concave mirror, so that the light converged by the first concave mirror is emitted into the sea sand desalting barrel, and the radius of the circular hole in the center of the second concave mirror can be smaller than or equal to that of the first concave mirror due to the large upper part and the small lower part of the converged light beam. In a specific embodiment of the present invention, the radius of the first concave mirror is preferably 0.1m, the radius of the second concave mirror is preferably 0.4m, and the radius of the circular hole at the center of the second concave mirror is preferably 0.1 m.
In the invention, the second concave mirror in the solar heating device is closer to the sea sand desalting bucket than the first concave mirror.
In the present invention, a schematic structural view of the concave mirror sunlight-concentrating heater is shown in fig. 2, wherein 1 is a first concave mirror, 2 is a support, and 3 is a second concave mirror.
The sunlight is converged by the second concave mirror in the sunlight converging heater through the concave mirror, the converged sunlight is converged and focused again through the first concave mirror and is emitted to the fresh water surface in the sea sand desalting bucket through the round hole formed in the bottom of the second concave mirror to heat the desalting water body, and the higher the temperature is, the higher the solubility of solid substances is, more chlorine ions are correspondingly dissolved, so that the chlorine ion dissolving amount of the desalting water body is increased by the method of heating the desalting water body through the sunlight converging heater through the concave mirror, the desalting quality is improved, and simultaneously, solar energy and fresh water resources are fully utilized. In addition, in rainy days, the concave mirror converges the second concave mirror of solar heater and can also play the effect of rainwater collector to pour the rainwater of collecting into the desalination pond and increase the fresh water in the desalination pond, make full use of the rainwater and carry out the sea sand desalination, improved resource utilization, reduce the desalination cost.
In the invention, the solar auxiliary desalination device can also be preferably a solar panel electric heater, and the structure of the solar panel electric heater is shown in fig. 3; as shown in fig. 3, the solar panel electric heater comprises a solar panel 1, a lighting device 2, an electric storage device 3, an electric heating rod 4, an ultrasonic generator 5, a microwave generator 6, an electric control device 7 and a bracket; the lighting device, the electric power storage device, the electric heating rod, the ultrasonic generator and the microwave generator are connected with the solar panel through the bracket and the electric control device. In the invention, when the solar panel electric heater is used for a sea sand desalting tank, the solar panel, the lighting device, the electric power storage device and the electric control device are positioned above the sea sand desalting tank; the electric heating rod, the ultrasonic generator and the microwave generator are positioned inside the sea sand desalting barrel. The structure of the sea sand desalination pool is shown in fig. 4, wherein: the device comprises a solar auxiliary desalter 1, a solar panel electric heater, a sea sand desalting barrel 2, a sea sand desalting platform 2-1, a wind power stirring device 2-2, a water discharging hole 2-3 and a wave energy stirring device 2-4.
After the solar panel electric heater converts solar energy into electric energy, the three-dimensional multi-path sea sand purification and desalination can be realized through the electric heating rod, the ultrasonic generator and the microwave generator, and electric energy required by illumination and daily life of workers can be provided for sea sand desalination at night, so that sea area and wind energy, wave energy and tidal energy are safely, economically and efficiently utilized.
The sea sand desalination pool provided by the invention comprises a sea sand desalination barrel 2; the material of the sea sand desalting barrel is preferably plastic. In the invention, the sea sand desalting barrel preferably comprises a barrel body and a barrel neck, and the specific structure is shown in fig. 5, wherein 1 is the barrel body, and 2 is the barrel neck. The sizes of the barrel body and the barrel neck of the sea sand desalting barrel are not particularly limited, and the sea sand desalting barrel can be set by a person skilled in the art according to actual conditions. In a specific embodiment of the invention, the inner diameter of the barrel body of the sea sand desalting barrel is preferably 0.9m, the height is preferably 1.5m, and the wall thickness is preferably 0.3 m.
The sea sand desalting barrel is made of plastic, so that the sea sand desalting barrel has the advantages of small self weight, simple structure, large capacity and good floating stability on the sea, is particularly suitable for being placed on the sea level for sea sand desalting, and can be conveniently connected through a rope and then fixed on a sand carrier for convenient movement and recovery.
In the invention, a sea sand desalting platform 2-1 is arranged in the middle of the sea sand desalting barrel; the sea sand desalting platform is positioned inside the sea sand desalting barrel. In the invention, the sea sand desalting platform preferably comprises a fixed support and a filter screen; the filter screen is preferably fixed on the fixing support. In the invention, the aperture of the filter screen is preferably 0.06-0.08 mm, and more preferably 0.075 mm. The distance between the sea sand desalination platform and the bottom of the sea sand desalination barrel is not particularly limited, and in the specific embodiment of the invention, the distance between the sea sand desalination platform and the bottom of the sea sand desalination barrel is preferably 0.8 m.
The filter screen of the sea sand desalting platform can filter sludge and sea sand with undersize grain diameter, and the sea sand with the grain diameter of less than 0.06-0.08 mm can cause excessive cement consumption due to overlarge specific surface area, thereby increasing the concrete cost. Therefore, the aperture of the filter screen of the sea sand desalting platform is adjusted to be 0.06-0.08 mm, so that other impurities such as the excessively fine sea sand, sludge and the like are discharged out of the sea sand desalting platform, and meanwhile, the filter screen can permeate through chloride ions, so that the chloride ions cleaned out of the sea sand can permeate through the filter screen and are discharged out of the sea sand desalting barrel along with the impurities.
In the invention, a wind stirring device 2-2 is arranged between the sea sand desalting platform 2-1 and the bung hole of the sea sand desalting barrel. In the invention, the wind power stirring device is preferably close to the bung hole of the sea sand desalting barrel; and further preferably on the barrel neck of the sea sand desalting barrel. In the present invention, the angle between the wind stirring device and the horizontal line is preferably 60 °. In the present invention, the number of the wind power stirring devices is preferably 2 to 4, and more preferably 4. In the invention, the wind power stirring device preferably comprises a windmill, a bearing, a windmill bracket and a wind power stirrer, wherein the windmill is connected with the windmill bracket through the bearing and is connected with the wind power stirrer through the bearing; the water windmill is fixed on the outer side of the sea sand desalting barrel through the water windmill bracket; the wind power stirrer is positioned inside the sea sand desalting barrel. In the present invention, the radius of rotation of the windmill is preferably 0.3 m. In the present invention, the wind power agitator is preferably in the shape of a circular arc; the number of the wind power stirrers is preferably 2-4, and more preferably 4.
In the present invention, a schematic structural diagram of the wind power stirring apparatus is shown in fig. 6, wherein 1 is a windmill, 2 is a bearing, 3 is a windmill support, and 4 is a wind power stirrer.
According to the invention, the wind power stirring device can convert wind energy into mechanical energy for desalting sea sand, so that the mixing efficiency of fresh water and sea sand is improved, the desalting efficiency of sea sand is further improved, and meanwhile, the wind energy which is renewable clean energy is fully utilized, so that the device is low-carbon, environment-friendly and sustainable.
In the invention, the bottom of the sea sand desalting barrel is provided with the drain holes 2-3, the size of the drain holes is not particularly limited, and the sea sand desalting barrel can be set by a person skilled in the art according to actual needs.
In the invention, a wave energy stirring device 2-4 is arranged between the drain hole 2-3 and the sea sand desalination platform 2-1. In the present invention, the installation angle of the wave energy stirring device is preferably consistent with the horizontal direction. In the present invention, the number of the wave energy stirring devices is preferably not less than 2, and more preferably 4. In the invention, the wave energy stirring device preferably comprises a windmill, a bearing, a windmill bracket, a transmission shaft and a wave energy stirrer; the water windmill is connected with the water windmill bracket through the bearing and is connected with the wave energy stirrer through the transmission shaft; the water windmill is fixed on the outer side of the sea sand desalting barrel through the water windmill bracket; the wave energy stirrer is positioned inside the sea sand desalting barrel. In the present invention, the radius of rotation of the windmill is preferably 0.3 m; the water windmill support and the transmission shaft are preferably Z-shaped. In the present invention, the wave energy stirrer is preferably of a broken line type; the length of the wave energy stirrer is not particularly limited, and a person skilled in the art can select the length according to the inner diameter of the sea sand desalting barrel, and in the specific embodiment of the invention, the length of the wave energy stirrer is preferably 0.4 m. The distance between the wave energy stirring device and the bottom of the sea sand desalination barrel is not particularly limited, and in the specific embodiment of the invention, the distance between the wave energy stirring device and the bottom of the sea sand desalination barrel is preferably 0.4 m.
In the invention, a schematic structural diagram of the wave energy stirring device is shown in fig. 7, wherein 1 is a windmill, 2 is a bearing, 3 is a windmill bracket, 4 is a transmission shaft, and 5 is a wave energy stirrer.
In the invention, the wave energy stirring device drives the disturbance of the fresh water through the rotation of the broken line type stirrer, converts the wave energy of the sea wave into mechanical energy for stirring the fresh water and the sea sand in the desalting tank in the horizontal direction, drives the sea sand on the sea sand desalting platform to move, increases the mixing force of the fresh water and the sea sand, improves the sea sand desalting efficiency, simultaneously utilizes the wave energy in the horizontal direction and the vertical direction (the desalting tank fluctuates up and down along with the waves), improves the utilization efficiency of the renewable energy wave energy, and is low-carbon, environment-friendly and economical.
The invention also provides a use method of the sea sand desalination pool, which comprises the following steps:
taking down the solar auxiliary desalter, placing a shell impurity filter screen at the opening of the sea sand desalting barrel, injecting the sea sand into the sea sand desalting barrel, and removing the shell impurity filter screen;
closing the drain hole, injecting fresh water through the bucket opening of the sea sand desalting bucket, stopping injecting the fresh water after the wind power stirrer is immersed in the fresh water, and installing the solar auxiliary desalter at the bucket opening of the sea sand desalting bucket;
the solar auxiliary desalter is used for heating fresh water, the wind stirring device and the wave stirring device are used for stirring sea sand and the fresh water, after the sea sand and the fresh water are fully mixed, a drain hole at the bottom of the sea sand desalting barrel is opened to discharge desalted water, the solar auxiliary desalter is taken down, and the desalted sea sand is taken out.
In the invention, the aperture of the shell impurity filter screen is preferably 9.0-10.0 mm, and more preferably 9.5 mm. In the invention, the shell impurity filter screen can filter out larger solid particles in the sea sand, such as impurities of shells, plastic garbage and the like, and preliminarily screen the sea sand to obtain the sea sand with better gradation; meanwhile, substances originally existing in seas such as large sea sand and shells intercepted by the shell impurity filter screen are preferably placed back into the seas, so that the influence on the marine ecological environment is reduced; the sea sand passing through the shell impurity filter screen falls onto a sea sand desalting platform for further cleaning and desalting. According to the invention, the sea sand is firstly filtered by the shell impurity filter screen, so that the sea sand can be cleaned, and meanwhile, chloride ions contained in the impurities are removed, so that the content of the desalted chloride ions is reduced, the fresh water used for desalting is fully saved, and the utilization efficiency of the fresh water is improved.
In the invention, the mass ratio of the sea sand to the fresh water injected into the sea sand desalination pool is preferably 1: 0.8. The time for mixing the sea sand and the fresh water is not particularly limited, and is determined according to the conditions of sea surface wind power and solar illumination, generally within 20-40 min, a small amount of chloride ion tests are firstly carried out on the sea sand after mixing and desalting, and then sand extraction is carried out after the sea sand reaches the standard.
The sea sand desalination pool and the use method thereof provided by the present invention will be described in detail with reference to the following examples, but they should not be construed as limiting the scope of the present invention.
Example 1
The sea sand desalination pool is arranged according to the structure of the sea sand desalination pool shown in fig. 1, the concave mirror sunlight-gathering heater structure shown in fig. 2, the sea sand desalination bucket structure shown in fig. 5, the wind power stirring device shown in fig. 6 and the wave energy stirring device shown in fig. 7, wherein:
the radius of a first concave mirror in the concave mirror sunlight-converging heater is 0.1m, the radius of a second concave mirror is 0.4m, and the radius of a circular hole in the center of the second concave mirror is 0.1 m; the first concave mirror is fixed at a position 20mm below the focal position of the second concave mirror through the support;
the inner diameter of the barrel body of the sea sand desalting barrel is 0.9m, the height is 1.5m, the thickness is 0.3m, and the material is plastic;
4 wind stirring devices are arranged on the barrel neck of the sea sand desalting barrel, and the angle between each wind stirring device and the horizontal line is 60 degrees; the rotating radius of a windmill in the wind power stirring device is 0.3 m;
a sea sand desalination platform is arranged at a position 0.8m away from the bottom of the sea sand desalination barrel, and the aperture of a filter screen of the sea sand desalination platform is 0.075 mm;
4 wave energy stirring devices are arranged at a position 0.4m away from the bottom of the sea sand desalting barrel, the length of a wave energy stirrer in each wave energy stirring device is 0.4m, and the rotating radius of a water windmill is 0.3 m;
the application method of the sea sand desalination pool comprises the following steps:
taking down the concave mirror to collect the solar heater, placing a shell impurity filter screen (with the aperture of 9.5mm) at the opening of the sea sand desalting barrel, injecting the sea sand into the sea sand desalting barrel, removing the shell impurity filter screen after the sea sand is injected, and storing the shell impurities in a classified manner or putting the shell impurities back to the sea on site;
closing the drain hole, injecting fresh water through the bucket opening of the sea sand desalting bucket, stopping injecting the fresh water after the blades of the wind stirrer are immersed in the fresh water, and installing the concave mirror converged sunlight heater at the bucket opening of the sea sand desalting bucket;
the mass ratio of the sea sand to the fresh water injected into the sea sand desalination pool is 1: 0.8;
the method comprises the steps of utilizing the solar concave mirror to collect heat generated by the sunlight heater to heat fresh water, utilizing the wind energy stirrer and the wave energy stirrer to stir sea sand and the fresh water, enabling the sea sand and the fresh water to be fully mixed for 10min, opening a drain hole at the bottom of the sea sand desalting barrel to discharge desalted water, taking down the solar concave mirror to collect the sunlight heater, and taking out the desalted sea sand through the sand taking device.
Through detection, the content of chloride ions in the desalted sea sand is 0.04 percent and is lower than 0.06 percent of the standard requirement. The chloride ion content of sand in JGJ 52-2006 Standard for quality and inspection method of common concrete is stipulated as mandatory provisions: the content of chloride ions in the sand for reinforced concrete is not more than-0.06 percent (calculated by dry sand mass percentage);
if the sunshine and wind conditions in the sea area reach the best, the content of chloride ions in the sea sand can be reduced to be not more than 0.02 percent within 10min, and the requirements of various engineering sands can be met.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A sea sand desalination pool is characterized by comprising a sea sand desalination barrel and a solar auxiliary desalination device, wherein the solar auxiliary desalination device is connected with a barrel opening of the sea sand desalination barrel through a detachable connecting piece;
a sea sand desalting platform is arranged in the middle of the sea sand desalting barrel; a wind stirring device is arranged between the sea sand desalting platform and the barrel opening of the sea sand desalting barrel, and the wind stirring device is close to the barrel opening of the sea sand desalting barrel;
a drain hole is formed in the bottom of the sea sand desalting barrel, and a wave energy stirring device is arranged between the drain hole and the sea sand desalting platform;
the solar auxiliary desalter is a concave mirror sunlight gathering heater, the concave mirror sunlight gathering heater comprises a first concave mirror, a second concave mirror and a support, and the mirror surface of the first concave mirror is opposite to the center of the sea sand desalting barrel and is fixed at a position 20mm below the focus position of the second concave mirror through the support; the edge of the first concave mirror is connected with the support; a round hole is formed in the center of the second concave mirror; the radius of the first concave mirror is smaller than that of the second concave mirror;
the sea sand desalting platform comprises a fixed support and a filter screen; the filter screen is fixed on the fixed support.
2. The sea sand desalination pool of claim 1, wherein the solar auxiliary desalination device is replaced by a solar panel electric heater, the solar panel electric heater comprises a solar panel, a lighting device, an electric storage device, an electric heating rod, an ultrasonic generator, a microwave generator, an electric control device and a bracket; the lighting device, the electric power storage device, the electric heating rod, the ultrasonic generator and the microwave generator are connected with the solar panel through the bracket and the electric control device; the solar panel, the lighting device, the electric power storage device and the electric control device are positioned above the sea sand desalting barrel; the electric heating rod, the ultrasonic generator and the microwave generator are positioned inside the sea sand desalting barrel.
3. The sea sand desalination pool of claim 1 or 2, wherein the wind stirring device comprises a windmill, a bearing, a windmill support and a wind stirrer, the windmill is connected with the windmill support through the bearing and is connected with the wind stirrer through the bearing, and the windmill support is fixed on the outer side of the sea sand desalination bucket.
4. The sea sand desalination pool of claim 3, wherein the wind-powered agitator is arc-shaped.
5. The sea sand desalination pool as claimed in claim 1 or 2, wherein the aperture of the filter screen is 0.06-0.08 mm.
6. The sea sand desalination pool of claim 1 or 2, wherein the wave energy stirring device comprises a windmill, a bearing, a windmill support, a transmission shaft and a wave energy stirrer, the windmill is connected with the windmill support through the bearing and connected with the wave energy stirrer through the transmission shaft, and the windmill support is fixed on the outer side of the sea sand desalination bucket.
7. The sea sand desalination pool of claim 6, wherein the windmill support and the transmission shaft are Z-shaped, and the wave energy agitator is of a broken line type.
8. The use method of the sea sand desalination pool as claimed in any one of claims 1 to 7, characterized by comprising the following steps:
taking down the solar auxiliary desalter, placing a shell impurity filter screen at the opening of the sea sand desalting barrel, injecting the sea sand into the sea sand desalting barrel, and removing the shell impurity filter screen;
closing the drain hole, injecting fresh water through the bucket opening of the sea sand desalting bucket, stopping injecting the fresh water after the wind power stirrer is immersed in the fresh water, and installing the solar auxiliary desalter at the bucket opening of the sea sand desalting bucket;
the solar auxiliary desalter is used for heating fresh water, the wind stirring device and the wave stirring device are used for stirring sea sand and the fresh water, after the sea sand and the fresh water are fully mixed, a drain hole at the bottom of the sea sand desalting barrel is opened to discharge desalted water, the solar auxiliary desalter is taken down, and the desalted sea sand is taken out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910660164.XA CN110372242B (en) | 2019-07-22 | 2019-07-22 | Sea sand desalination pool and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910660164.XA CN110372242B (en) | 2019-07-22 | 2019-07-22 | Sea sand desalination pool and use method thereof |
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| CN110372242A CN110372242A (en) | 2019-10-25 |
| CN110372242B true CN110372242B (en) | 2021-06-11 |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030168386A1 (en) * | 2002-03-08 | 2003-09-11 | Hung-Yuan Lee | Sea sand desalination method |
| CN102320675A (en) * | 2011-06-29 | 2012-01-18 | 中国科学院广州能源研究所 | Seawater desalting device and method |
| CN204848552U (en) * | 2015-07-16 | 2015-12-09 | 罗义云 | Sea sand processing apparatus with fresh water circulation function |
| CN206916014U (en) * | 2017-05-16 | 2018-01-23 | 钟天伟 | Silt particle separator based on sea sand desalting and the desalination ship using the device |
| CN206911559U (en) * | 2017-05-16 | 2018-01-23 | 钟天伟 | Desalination ship based on sea sand desalting fluidization back-washing machine and using the device |
| CN207446679U (en) * | 2017-05-16 | 2018-06-05 | 钟天伟 | Desalination ship based on sea sand desalting vibration screening device and using the device |
| CN207330617U (en) * | 2017-09-14 | 2018-05-08 | 山东科技大学 | A kind of sea sand desalting water recovery device |
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