Sodium salt tedding system
By setting up spray tanks and halogen storage tanks upstream of the sodium salt pool, and using spray equipment to increase the contact area between brine and air, the problems of large area and unstable output in mineralized brine preparation are solved, and efficient and stable brine production is achieved.
Patent Information
- Application Number
- CN202510567351.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2025-07-11
AI Technical Summary
In the prior art, the preparation of mineralized brine requires large areas of salt fields and the yield is unstable due to meteorological factors.
A spray tank and a halogen storage tank are set up upstream of the sodium salt pool. The brine is sprayed into the sodium salt pool through the spray equipment to increase the contact area between the brine and the air, and multiple spray equipment are used to adjust the jet angle to achieve fixed-point evaporation control.
The construction area of salt fields has been reduced, the evaporation speed and production stability of mineralized brine have been improved, and the costs have been reduced.
Smart Images
Figure CN120285590A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a sodium salt beach drying system, and particularly to the evaporation management technology of brine. Background Art
[0002] Salt field beach drying uses the intercrystalline brine in the salt lake as raw material, which is respectively subjected to beach drying in the sodium salt pond and the carnallite pond, and finally carnallite for producing potassium fertilizer is precipitated in the carnallite pond.
[0003] A large amount of energy required during the beach drying process mainly comes from solar radiation energy and wind energy. The beach drying efficiency is closely related to meteorological factors. The change of meteorology directly affects the production of ore-forming brine, resulting in unstable production of carnallite.
[0004] According to the evaporation and crystallization process of salt lake brine, the sodium separation stage is from the raw brine to 29 Baumé. The beach drying cycle in this stage is the longest, and a large area of salt fields (sodium salt ponds) are required for natural evaporation of brine, which directly leads to the current shortage of salt field area and seriously affects the production capacity of the subsequent beach drying. Improving the evaporation rate of salt fields during the low evaporation period is crucial for accelerating the preparation of ore-forming brine.
[0005] The purpose of the present invention is to solve the problems in the prior art that the preparation of ore-forming brine requires a large area of salt fields and is affected by factors such as meteorology, resulting in unstable production of ore-forming brine. Summary of the Invention
[0006] The first technical solution of the present invention is a sodium salt beach drying system, including a sodium salt pond (30) arranged upstream of the carnallite pond or the regulating pond. The raw brine is beach dried in the sodium salt pond (30) into ore-forming brine, and directly or after beach drying through the regulating pond, enters the carnallite pond to beach dry out carnallite. It is characterized in that a spray pond (20) and a brine storage pond (10) are arranged at a neighboring position upstream of the sodium salt pond (30). The raw brine sequentially enters the sodium salt pond (30) from the brine storage pond (10) and the spray pond (20) for beach drying. The brine storage pond (10) is used for storing the raw brine. A first spray device (100) is arranged between the brine storage pond (10) and the spray pond (20) for spraying the brine in the brine storage pond (10) into the spray pond (20). A second spray device (200) is arranged between the spray pond (20) and the sodium salt pond (30) for spraying the brine in the spray pond (20) into the sodium salt pond (30) to beach dry into the ore-forming brine.
[0007] Since a spray pond (20) and a brine storage pond (10) are arranged at a neighboring position upstream of the sodium salt pond (30), after the raw brine is stored in the brine storage pond (10), it is sprayed into the spray pond (20) through the first spray device (100). The brine in the spray pond (20) is sprayed into the sodium salt pond (30) by the second spray device (200) to beach dry into the ore-forming brine.
[0008] By means of the spraying method, not only is the contact area between the brine and the air increased, thus accelerating the evaporation rate of the brine, which can greatly reduce the construction area of the salt pans, but also, according to the production situation, fixed-point evaporation can be carried out at stages when the evaporation of the brine is difficult, so as to alleviate the unstable supply of the ore-forming brine.
[0009] The second technical solution is that the sun-drying area of the sodium salt pond (30) is greater than or equal to the sum of the sun-drying areas of the brine storage pond (10) and the spraying pond (20).
[0010] The third technical solution is that the sun-drying areas of the brine storage pond (10) and the spraying pond (20) are equal.
[0011] The fourth technical solution is to set at least two dikes in the existing sodium salt pond, dividing it into at least three areas. The area located upstream is used as the brine storage pond (10), the middle area is used as the spraying pond (20), and the downstream area is used as the sodium salt pond (30).
[0012] The fifth technical solution is that the first spraying device (100) is installed on the first dike (12) between the brine storage pond (10) and the spraying pond (20), and the second spraying device (200) is installed on the second dike (23) between the spraying pond (20) and the sodium salt pond (30).
[0013] The sixth technical solution is that there are multiple first spraying devices (100), which are respectively installed on the first dike (12) at equal intervals.
[0014] The seventh technical solution is that there are multiple second spraying devices (200), which are respectively installed on the second dike (23) at equal intervals.
[0015] The eighth technical solution is that the first spraying device (12) and the second spraying device (23) are respectively installed on the first dike (12) and the second dike (23), and the spraying angle of the nozzle (60) can be adjusted.
[0016] The ninth technical solution is that the brine storage pond (10) is equipped with a first brine pumping station (11) for pumping raw brine into the brine storage pond (10), and the sodium salt pond (30) is equipped with a second brine pumping station (31) for pumping the ore-forming brine after sun-drying into the downstream carnallite pond and regulating pond.
[0017] The tenth technical solution is that the brine in the sodium salt pond (30) is sun-dried until its density is greater than 1.241 g / cm, and then pumped into the downstream carnallite pond or regulating pond as the ore-forming brine. Description of the Drawings
[0018] Figure 1It is a schematic plan view of the sodium salt beach drying system.
[0019] Description of the reference numerals: 10 - Brine storage pond; 11 - First brine pumping station; 12 - First dike; 20 - Spraying pond; 23 - Second dike; 30 - Sodium salt pond; 31 - Second brine pumping station; 100 - First spraying device; 200 - Second spraying device. Detailed implementation manners
[0020] The sodium salt beach drying system of the present invention will be described below through specific embodiments.
[0021] The sodium salt beach drying system of the present invention uses the intercrystalline brine of the salt lake as raw material, and utilizes solar radiation energy and wind energy to evaporate water to concentrate the brine, and precipitate sodium chloride to generate ore-forming brine.
[0022] Figure 1 It is a schematic plan view of the sodium salt beach drying system.
[0023] The sodium salt beach drying system mainly consists of a brine storage pond 10, a spraying pond 20 and a sodium salt pond 30. During the construction stage, according to geological data, the sodium salt pond 30 is built at a suitable location, and upstream of the sodium salt pond 30, the brine storage pond 10 and the spraying pond 20 are built in sequence.
[0024] A first dike 12 is built between the brine storage pond 10 and the spraying pond 20 for isolation, and a second dike 23 is built between the spraying pond 20 and the sodium salt pond 30 for isolation.
[0025] On the first dike 12, 5 first spraying devices 100 are installed at equal intervals; on the second dike 23, 5 second spraying devices 200 are also installed at equal intervals. The first spraying device 12 and the second spraying device 23 adopt the same spraying device 23, whose spraying port faces downstream and the spraying angle can be adjusted.
[0026] A first brine pumping station 11 is installed on one side of the brine storage pond 10 for pumping raw brine into the brine storage pond 10; a second brine pumping station 31 is installed on one side of the sodium salt pond 30 for pumping the ore-forming brine after beach drying into the downstream carnallite pond or regulating pond.
[0027] The brine storage pond 10 is used for storing raw brine, and the spraying pond 20 is used for the transition stage of rapid evaporation. Neither of them needs to have the main beach drying function. The sodium salt pond 30 is used as a beach drying salt field. After the brine is beach dried in the sodium salt pond 30 until, for example, the density is greater than 1.241 g / cm, it is pumped into the downstream carnallite pond or regulating pond as ore-forming brine by the second brine pumping station 31.
[0028] The sodium salt pond 30 undertakes the main solar evaporation function of brine to ore-forming brine, and its area is set according to the requirements of solar evaporation. Since the main functions of the brine storage pond 10 and the spraying pond 20 are brine storage and spraying, large solar evaporation areas are not required. Taking into account the need for brine storage, in this embodiment, the solar evaporation areas of the brine storage pond 10 and the spraying pond 20 are equal, and the solar evaporation area of the sodium salt pond 30 is greater than or equal to the sum of the solar evaporation areas of the brine storage pond 10 and the spraying pond 20.
[0029] During solar evaporation, the raw brine collected is introduced into the brine storage pond 10 for storage through the first brine guiding pump station 11. The brine in the brine storage pond 10 is sprayed into the spraying pond 20 by the first spraying device 100. The brine in the spraying pond 2 is sprayed into the sodium salt pond 30 by the second spraying device 200. The brine is solar-evaporated to ore-forming brine in the sodium salt pond 30, and finally the ore-forming brine is exported by the second brine guiding pump station 31 to the carnallite pond to solar-evaporate carnallite or first introduced into the regulating pond and then into the carnallite pond. The solar evaporation of the ore-forming brine in the carnallite pond or the regulating pond is the prior art and will not be elaborated here.
[0030] Since the raw brine is sprayed twice before entering the sodium salt pond 30, the atomized brine increases the contact area with the air, thereby accelerating the brine evaporation rate and reducing the time required for solar evaporation of the brine in the sodium salt pond 30. Compared with the existing simple solar evaporation in the sodium salt pond, the area of the sodium salt pond 30 can be greatly reduced, and the evaporation rate can be adjusted according to needs to keep the production of ore-forming brine stable.
[0031] Variant At least two dams are arranged in the existing sodium salt pond and divided into at least three areas. The area located upstream is used as the brine storage pond 10, the middle area is used as the spraying pond 20, and the downstream area is used as the sodium salt pond 30.
[0032] Therefore, by transforming the existing sodium salt pond, the solar evaporation efficiency can be improved, the adjustment of the evaporation rate can be realized, the production of ore-forming brine can be increased and the production of ore-forming brine can be kept stable. Compared with building a new sodium salt pond, the cost can be greatly reduced.
[0033] It should be noted that the above embodiments illustrate the present invention rather than limit the present invention, and those skilled in the art can design alternative embodiments without departing from the scope of the appended claims.
Claims
1. Sodium salt solar evaporation system, including a sodium salt pond (30) arranged upstream of the carnallite pond or the regulating pond. The raw brine is solar-evaporated in the sodium salt pond (30) to form ore-forming brine, and then directly or after passing through the regulating pond, enters the carnallite pond for solar evaporation to obtain carnallite. It is characterized in that, A spray pond (20) and a brine storage pond (10) are arranged at adjacent positions upstream of the sodium salt pond (30). The raw brine sequentially enters the sodium salt pond (30) from the brine storage pond (10) and the spray pond (20) for solar evaporation. The brine storage pond (10) is used for storing the raw brine. A first spraying device (100) is arranged between the brine storage pond (10) and the spray pond (20) for spraying the brine in the brine storage pond (10) into the spray pond (20). A second spraying device (200) is arranged between the spray pond (20) and the sodium salt pond (30) for spraying the brine in the spray pond (20) into the sodium salt pond (30) for solar evaporation to form the ore-forming brine.
2. The sodium salt beach drying system according to claim 1, characterized in that, The solar evaporation area of the sodium salt pond (30) is greater than or equal to the sum of the solar evaporation areas of the brine storage pond (10) and the spray pond (20).
3. The sodium salt beach drying system according to claim 2, wherein, The solar evaporation areas of the brine storage pond (10) and the spray pond (20) are equal.
4. The sodium salt beach drying system according to claim 3, wherein, At least two dams are arranged in the existing sodium salt pond to divide it into at least three areas. The area located upstream is used as the brine storage pond (10), the middle area is used as the spray pond (20), and the downstream area is used as the sodium salt pond (30).
5. The sodium salt solar evaporation system according to claim 4, characterized in that, The first spraying device (100) is installed on the first dam (12) between the brine storage pond (10) and the spray pond (20). The second spraying device (200) is installed on the second dam (23) between the spray pond (20) and the sodium salt pond (30).
6. The sodium salt beach drying system according to claim 5, characterized in that, There are multiple first spraying devices (100), which are respectively installed on the first dam (12) at equal intervals.
7. The sodium salt beach drying system according to claim 6, characterized in that, There are multiple second spraying devices (200), which are respectively installed on the second dam (23) at equal intervals.
8. The sodium salt beach drying system according to claim 6, wherein, The first spraying device (12) and the second spraying device (23) are respectively installed on the first dam (12) and the second dam (23), and the spraying angle of the nozzle (60) can be adjusted.
9. The sodium salt beach drying system according to claim 8, wherein The brine storage pond (10) is equipped with a first brine pumping station (11) for pumping the raw brine into the brine storage pond (10). The sodium salt pond (30) is equipped with a second brine pumping station (31) for pumping the ore-forming brine after solar evaporation into the downstream carnallite pond or regulating pond.
10. The sodium salt beach drying system according to any one of claims 1 to 9, characterized in that, The brine in the sodium salt pond (30) is solar-evaporated to a density greater than 1.241 g / cm and is pumped into the downstream carnallite pond or regulating pond as the ore-forming brine.