CN112062488A - Device and method for quickly desalting sea sand - Google Patents
Device and method for quickly desalting sea sand Download PDFInfo
- Publication number
- CN112062488A CN112062488A CN201910495444.XA CN201910495444A CN112062488A CN 112062488 A CN112062488 A CN 112062488A CN 201910495444 A CN201910495444 A CN 201910495444A CN 112062488 A CN112062488 A CN 112062488A
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- Prior art keywords
- sea sand
- conveying
- conveying equipment
- conveying belt
- sand
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- 239000004576 sand Substances 0.000 title claims abstract description 104
- 238000011033 desalting Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000013505 freshwater Substances 0.000 claims abstract description 18
- 238000007790 scraping Methods 0.000 claims abstract description 18
- 238000005507 spraying Methods 0.000 claims abstract description 10
- 238000001914 filtration Methods 0.000 claims abstract description 6
- 238000002347 injection Methods 0.000 claims abstract description 5
- 239000007924 injection Substances 0.000 claims abstract description 5
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 238000005406 washing Methods 0.000 claims abstract description 4
- 239000002245 particle Substances 0.000 claims abstract description 3
- 238000010612 desalination reaction Methods 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 3
- 239000004746 geotextile Substances 0.000 description 13
- 239000000463 material Substances 0.000 description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006298 dechlorination reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The invention provides a device for quickly desalting sea sand, wherein a filtering and draining facility is laid at the bottom of conveying equipment or a conveying belt, a spraying device or a water injection device is arranged on the conveying equipment or the conveying belt, and a drain hole is arranged at the bottom of the conveying equipment or the conveying belt. The invention also provides a method for desalting sea sand, which comprises the following steps: (1) sand feeding: unloading the sea sand to be desalinated onto conveying equipment or a conveying belt; (2) scraping and leveling: the scraper plate pushes naturally accumulated sea sand on the conveying equipment into a set shape; (3) washing and desalting: spraying fresh water or injecting fresh water to the conveying equipment or the conveying belt from top to bottom, allowing the fresh water to seep downwards from the sea sand on the conveying equipment or the conveying belt, filling gaps among sand particles, and desalting the sea sand; (4) draining: and discharging the water after desalting the sea sand and the water originally contained in the sea sand through a conveying device or a drainage facility at the bottom of the conveying belt. The invention realizes the aim of desalting sea sand on the conveying equipment, simplifies the desalting equipment and has the advantages of water saving, low operation cost and small investment.
Description
Technical Field
The invention relates to the field of sea sand desalination, in particular to a device for rapidly desalinating sea sand and a method for desalinating sea sand.
Background
With the development of economy, a large amount of building sand is required for building engineering construction. Sea sand or semilight salty sand (the sand is located at the section of a river mouth of a river, and because the sections are occupied by fresh water in the ebb tide process, seawater can infiltrate in the ebb tide process, and the chloride ion content of the sand at the section is higher than that of river sand but lower than that of sea sand) is used as a novel building material in a large amount in the field of buildings. Sea sand or half light salty sand carries chloride ions which exceed national standards, the chloride ions which exceed the standards corrode reinforcing steel bars, and the safety of buildings can be endangered by directly using the sea sand in the buildings, so the chloride ions in the sea sand or half light salty sand need to be removed before use. At present, the sea sand or the half-light salty sand is cleaned by fresh water in a land site at home, and chloride ions in the sea sand are removed, so that the fine aggregate meeting the requirement of the building sand is obtained.
A plurality of chain buckets or ferris wheels are usually adopted before mechanically cleaning sea sand or semi-light salty sand on land, the water consumption is large, fresh water resources in coastal areas are deficient, and the cost of desalting sea sand is increased. In addition, a number of specialized equipment is required for desalinating sea sand.
Disclosure of Invention
Hereinafter, sea sand and brackish sand will be collectively referred to simply as sea sand.
The invention aims to overcome the defects, technically transforms common conveying equipment (such as a belt conveyor equipped in the existing sea sand desalting equipment), and provides a device for quickly desalting sea sand and a method for desalting sea sand.
Firstly, the invention provides a device for quickly desalting sea sand, which adopts the technical scheme that:
the utility model provides a device of desalination sea sand fast which characterized in that: the bottom of the conveying equipment or the conveying belt is provided with a filtering and draining facility, a spraying device or a water injection device is arranged above the conveying equipment or the conveying belt, and a scraping plate device is arranged on the conveying equipment or the conveying belt.
Further, the conveying equipment is a belt conveyor.
Further, a drain hole is formed in the bottom of the conveying equipment or the conveying belt.
Further, the rear part of the conveying equipment or the conveying belt is bent upwards, and the upper bending angle is not more than 30 degrees.
Further, the scraping plate device is arranged at the front end of the conveying equipment or the conveying belt.
The guide chute is installed when part band conveyer carries the powder (the guide chute is not installed when carrying sea sand usually), and the guide chute dress is in band conveyer's receiving material department, makes the material that falls from the funnel concentrate the middle part of conveyer belt before reaching the area speed, and the restraint material is toward scattering outward and falls. The guide chute is not required to be installed normally when the wet sea sand is wet, the guide chute comprises three parts, namely a rear baffle, a chute body and a front curtain, and if the rear baffle is designed to have the effect of a scraping plate according to the idea of the invention, the sea sand can be pushed into a set shape, and the effect of the scraping plate is equal to the effect of the scraping plate. The sea sand is conveyed to the conveying belt through the hopper, and a natural accumulation state is formed on the conveying belt. The sea sand is pushed into a set shape by the aid of the additionally-arranged device, the effect is equal to that of a scraping plate, and the scraping plate can be regarded as a scraping plate. Are intended to be covered by the scope of the claims.
The device for quickly desalting sea sand can be improved on the basis of the existing conveying equipment (belt conveyor), and is additionally provided with a filtering and draining facility, simple in structure and low in cost. The scraping plate device arranged at the front part of the conveying equipment or the conveying belt can push the conical materials formed by natural accumulation to be flat in the feeding process, so that the uneven phenomenon that the middle of the materials on the conveying equipment are thick and the two sides are low is solved, the materials are uniformly distributed on the conveying equipment, and the fresh water can uniformly clean the sea sand conveniently.
Secondly, the invention also provides a method for desalting sea sand, which adopts the technical scheme that:
a method for desalinating sea sand is characterized by comprising the following steps:
(1) sand feeding: unloading the sea sand to be desalinated onto conveying equipment or a conveying belt;
(2) scraping and leveling: the scraper plate pushes sea sand naturally accumulated on the conveying equipment into a set shape;
(3) washing and desalting: spraying fresh water or injecting fresh water to the conveying equipment or the conveying belt from top to make the water surface higher than the sand surface, allowing the fresh water to seep downwards from the sea sand body on the conveying equipment or the conveying belt to fill gaps among sand grains, and desalting the sea sand;
(4) draining: and discharging the water after desalting the sea sand and the water originally contained in the sea sand through a conveying device or a drainage facility at the bottom of the conveying belt.
The scraper plate pushes sea sand naturally accumulated on the conveying equipment into a shape which can be an arc, a parabola or a straight line or the like or a combination thereof.
Further, in the step (2), the scraper plate pushes the naturally accumulated sea sand on the conveying equipment to be flat.
According to the method, materials are uniformly distributed on the conveying equipment, and the pressure seepage flow is formed in the sea sand conveyed by the conveying equipment or the conveying belt on the basis of a previous test, so that the problems of large water consumption and poor dechlorination effect of a traditional spraying method are solved, chloride ions in the sea sand can be quickly removed, the sea sand is desalinated, the fresh water consumption is saved, the operation cost is low, and the desalination effect is good. The invention skillfully combines the conveying equipment with the sea sand desalination treatment, simplifies the sea sand treatment process and reduces the equipment investment.
Description of the drawings:
fig. 1 is a schematic structural diagram of an embodiment 1 of the device for rapidly desalinating sea sand according to the present invention.
Figure 2 is a side view of the upper belt of figure 1.
Description of the reference numerals
1. Belt conveyor 2, scraping plate 3, spraying device or water injection device 4, steering wheel 5, belt 6, sea sand 7, geotextile (or percolating geotextile) 8, drain hole
Detailed Description
Aiming at the problems of more mechanical equipment and large fresh water consumption of the existing sea sand mechanical cleaning method, the invention improves the existing common conveying equipment to ensure that the sea sand mechanical cleaning method has the capability of desalting sea sand, simplifies desalting equipment and can save water.
Example 1
In the present example shown in fig. 1-2, the conveying equipment is a trough belt conveyor, the upper belt of the body of the conveyor is supported by trough carrier rollers, the two sides of the upper belt are high, the middle of the upper belt is low, geotextile or percolating geotextile 7 is laid on the surface of the middle part of the belt 5, the geotextile or percolating geotextile 7 is firmly connected with the belt 5, the middle part of the belt is provided with a drain hole 8, a spraying device or water injection device 3 is arranged above the trough belt conveyor, and the front end of the trough belt conveyor is provided with a scraper plate 2 device. The sea sand passes through the scraping plate 2 at the front end, and the naturally accumulated uneven sand body with thick middle and low two sides can be pushed into a shape corresponding to the scraping plate 2. Further, the scraper plate pushes the naturally accumulated sea sand 6 on the conveying equipment to be flat. Further, the rear part of the conveying equipment or the conveying belt is bent upwards, and the upper bending angle is not more than 30 degrees. Thereby forming a water-permeable water tank with three high sides and a low middle semi-closed bottom.
The filtering drainage facility of the invention can be a combination of geotextile (or geotextile) laid at the bottom of the conveying equipment or the conveying belt and drainage holes arranged at the bottom of the conveying equipment or the conveying belt. The water after desalting the sea sand can be discharged through the fiber gaps of the geotextile, and the geotextile can reserve the desalted sea sand. Water passing through the geotextile (or geotextile) is drained through the drainage hole.
The filtering and draining facility can also be a combination of geotextile and a draining cushion layer which are paved at the bottom of the conveying equipment or the conveying belt and draining holes which are arranged at the bottom of the conveying equipment or the conveying belt.
Example 2
The method comprises the following steps:
(1) sand feeding: unloading the sea sand to be desalinated onto conveying equipment or a conveying belt;
(2) scraping and leveling: the scraper plate pushes sea sand naturally accumulated on the conveying equipment into a set shape;
(3) washing and desalting: spraying fresh water or injecting fresh water to the conveying equipment or the conveying belt from top to make the water surface higher than the sand surface, allowing the fresh water to seep downwards from the sea sand on the conveying equipment or the conveying belt, filling gaps among sand particles, and desalting the sea sand;
(4) draining: and discharging the water after desalting the sea sand and the water originally contained in the sea sand through a conveying device or a drainage facility at the bottom of the conveying belt.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention will still fall within the protection scope of the technical solution of the present invention.
Claims (7)
1. The utility model provides a device of desalination sea sand fast which characterized in that: the bottom of the conveying equipment or the conveying belt is provided with a filtering and draining facility, a spraying device or a water injection device is arranged above the conveying equipment or the conveying belt, and a scraping plate device is arranged on the conveying equipment or the conveying belt.
2. The device for rapidly desalinating sea sand according to claim 1, wherein: the conveying equipment is a belt conveyor.
3. The device for rapidly desalinating sea sand according to claim 1, wherein: and the bottom of the conveying equipment or the conveying belt is provided with a drain hole.
4. The device for rapidly desalinating sea sand according to claim 1, wherein: the rear part of the conveying equipment or the conveying belt is bent upwards, and the upper bending angle is not more than 30 degrees0。
5. The device for rapidly desalinating sea sand according to claim 1, wherein: the scraping plate device is arranged at the front end of the conveying equipment or the conveying belt.
6. A method for quickly desalting sea sand is characterized by comprising the following steps:
(1) sand feeding: unloading the sea sand to be desalinated onto conveying equipment or a conveying belt;
(2) scraping and leveling: the scraper plate pushes sea sand naturally accumulated on the conveying equipment or the conveying belt into a set shape;
(3) washing and desalting: spraying fresh water or injecting fresh water to the conveying equipment or the conveying belt from top to make the water surface higher than the sand surface, allowing the fresh water to seep downwards from the sea sand on the conveying equipment or the conveying belt, filling gaps among sand particles, and desalting the sea sand;
(4) draining: and discharging the water after desalting the sea sand and the water originally contained in the sea sand through a conveying device or a drainage facility at the bottom of the conveying belt.
7. The method of claim 5, wherein: and (3) pushing the naturally accumulated sea sand on the conveying equipment by the scraper plate in the step (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910495444.XA CN112062488A (en) | 2019-06-10 | 2019-06-10 | Device and method for quickly desalting sea sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910495444.XA CN112062488A (en) | 2019-06-10 | 2019-06-10 | Device and method for quickly desalting sea sand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112062488A true CN112062488A (en) | 2020-12-11 |
Family
ID=73658125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910495444.XA Pending CN112062488A (en) | 2019-06-10 | 2019-06-10 | Device and method for quickly desalting sea sand |
Country Status (1)
| Country | Link |
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| CN (1) | CN112062488A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6150654A (en) * | 1984-08-15 | 1986-03-12 | Mitsubishi Heavy Ind Ltd | Method and apparatus for removing salt in sea sand |
| JPS63107758A (en) * | 1986-09-05 | 1988-05-12 | Yoshiko Amamoto | Apparatus for dehydrating and desalting sea sand |
| JP2005066825A (en) * | 2003-08-21 | 2005-03-17 | Naooki Isaka | Belt conveyor rubber belt with drain holes |
| CN103303439A (en) * | 2012-06-27 | 2013-09-18 | 刘贤铨 | Ship for desalting sea sand and method for desalting sea sand on ship |
| CN103662746A (en) * | 2013-10-21 | 2014-03-26 | 江苏卓易环保科技有限公司 | Scraper device of belt conveyer |
| CN208882704U (en) * | 2018-08-10 | 2019-05-21 | 上海石化安东混凝土有限公司 | A kind of sandstone transporter |
| CN210193693U (en) * | 2019-06-10 | 2020-03-27 | 刘贤铨 | Device for quickly desalting sea sand |
-
2019
- 2019-06-10 CN CN201910495444.XA patent/CN112062488A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6150654A (en) * | 1984-08-15 | 1986-03-12 | Mitsubishi Heavy Ind Ltd | Method and apparatus for removing salt in sea sand |
| JPS63107758A (en) * | 1986-09-05 | 1988-05-12 | Yoshiko Amamoto | Apparatus for dehydrating and desalting sea sand |
| JP2005066825A (en) * | 2003-08-21 | 2005-03-17 | Naooki Isaka | Belt conveyor rubber belt with drain holes |
| CN103303439A (en) * | 2012-06-27 | 2013-09-18 | 刘贤铨 | Ship for desalting sea sand and method for desalting sea sand on ship |
| CN103662746A (en) * | 2013-10-21 | 2014-03-26 | 江苏卓易环保科技有限公司 | Scraper device of belt conveyer |
| CN208882704U (en) * | 2018-08-10 | 2019-05-21 | 上海石化安东混凝土有限公司 | A kind of sandstone transporter |
| CN210193693U (en) * | 2019-06-10 | 2020-03-27 | 刘贤铨 | Device for quickly desalting sea sand |
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