Strong brine treatment system utilizing waste heat of photo-thermal power station

Abstract

The utility model belongs to the technical field of water treatment, and relates to a strong brine treatment system utilizing waste heat of a photo-thermal power station. Comprising a heat absorption tower, a hot salt tank, a cold salt tank, a power generation system, an air cooling island and strong brine treatment equipment, an outlet of the heat absorption tower is connected with the hot salt tank; the hot salt tank is respectively connected with the power generation system and the strong brine treatment equipment; the power generation system is respectively connected with the cold salt tank, the air cooling island and the strong brine treatment equipment; the strong brine treatment equipment is connected with the cold salt tank; and the cold salt tank is connected with an inlet of the heat absorption tower. The generator waste heat (waste heat steam) is used as a main heat source for evaporation of the strong brine, high-temperature fused salt is used as a standby heat source, the waste heat is fully utilized, meanwhile, efficient standard treatment of the strong brine can be guaranteed, cyclic utilization of the waste heat and water resources is achieved, and the device has the advantages of being environmentally friendly, low in carbon, efficient in circulation, comprehensive in resource utilization and the like.

Description

Technical Field

[0001] This utility model belongs to the field of water treatment technology and relates to a concentrated brine treatment system that utilizes waste heat from a solar thermal power plant. Background Technology

[0002] Solar thermal power generation combines the dual functions of peak-shaving power and energy storage, enabling the regulation and support of new energy sources. It provides the power system with better long-term peak-shaving capabilities and rotational inertia, possessing the potential to serve as a peak-shaving and basic power source in certain regions. It is an effective means of safely and reliably replacing traditional energy sources and a strong support for accelerating the planning and construction of a new energy system. It has broad application prospects.

[0003] The chemical water treatment system of a concentrated solar power (CSP) plant mainly uses a series of precise chemical reactions and treatment steps to produce high-purity water from various water sources to meet the power generation requirements. This reduces scaling and corrosion in equipment, thereby improving heat transfer efficiency and enabling more efficient conversion of heat energy into electrical energy. The chemical water treatment process typically produces concentrated brine. Currently, CSP plants mainly treat this brine through evaporation ponds and evaporator crystallization evaporation. Evaporation ponds have drawbacks such as large footprint and low evaporation efficiency, while evaporator crystallization evaporation offers high evaporation efficiency but also requires more equipment and consumes more electricity.

[0004] Given the shortcomings of existing technologies, there is an urgent need for a high-efficiency, stable, and economical concentrated brine treatment system that can efficiently treat concentrated brine while reducing treatment costs. Utility Model Content

[0005] The purpose of this utility model is to solve the technical problems in the prior art and provide a concentrated brine treatment system that utilizes the waste heat of a solar thermal power plant to improve the efficiency of waste heat utilization and realize the recycling of water resources.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a concentrated brine treatment system utilizing waste heat from a solar thermal power plant, comprising a heat absorption tower, a hot brine tank, a cold brine tank, a power generation system, an air-cooled island, and concentrated brine treatment equipment; the outlet of the heat absorption tower is connected to the hot brine tank; the hot brine tank is connected to both the power generation system and the concentrated brine treatment equipment; the power generation system is connected to the cold brine tank, the air-cooled island, and the concentrated brine treatment equipment; the concentrated brine treatment equipment is connected to the cold brine tank; and the cold brine tank is connected to the inlet of the heat absorption tower.

[0008] Preferably, the hot salt tank has a hot salt tank inlet and a hot salt tank outlet on its side wall; the hot salt tank inlet is connected to the heat absorption tower outlet; and the hot salt tank outlet is connected to the power generation system and the concentrated brine treatment equipment, respectively.

[0009] Preferably, the power generation system is provided with a first hot salt inlet, a first steam outlet, and a first cold salt outlet; the first hot salt inlet is connected to a hot salt tank; the first steam outlet is connected to an air-cooled island and a concentrated brine treatment device; and the first cold salt outlet is connected to a cold salt tank.

[0010] Preferably, the cold salt tank has a cold salt tank outlet and a cold salt tank inlet on its side wall; the cold salt tank outlet is connected to the heat absorption tower inlet; and the cold salt tank inlet is connected to the power generation system and the concentrated brine treatment equipment, respectively.

[0011] Preferably, the concentrated brine treatment equipment includes a sidewall; the sidewall forms a cavity structure; a concentrated brine inlet is provided at the top of the concentrated brine treatment equipment; the concentrated brine inlet is connected to a telescopic pipe, and the telescopic pipe extends into the cavity structure; a steam inlet, a second cold salt outlet, and a second hot salt inlet are provided on the sidewall; the steam inlet is connected to a power generation system; the second cold salt outlet is connected to a cold salt tank; the second hot salt inlet is connected to a hot salt tank; the second cold salt outlet and the second hot salt inlet are connected through a molten salt pipe.

[0012] Preferably, the concentrated brine treatment equipment is equipped with a rotary motor and a telescopic motor at the top; both the rotary motor and the telescopic motor are connected to the telescopic pipe.

[0013] Preferably, the bottom of the telescopic pipe is connected to the water distribution pipe; the water distribution pipe is equipped with multiple spray heads.

[0014] Preferably, the outer wall of the telescopic tube is connected to the fixed plate; a salt scraper is provided around the fixed plate.

[0015] Preferably, the side wall is provided with a steam inlet, a condensate outlet, a second steam outlet, and a collection tank; the steam inlet and the second steam outlet are connected by a steam pipe; the collection tank and the condensate outlet are connected.

[0016] Preferably, a salt storage hopper is provided inside the cavity structure; a salt outlet is provided at the bottom of the concentrated brine treatment equipment; the salt storage hopper and the salt outlet are connected.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention collects solar energy through a heat absorption tower and heats molten salt to form high-temperature molten salt. The high-temperature molten salt is then supplied to both the power generation system and the concentrated brine treatment equipment via a hot salt tank. The power generation system uses the high-temperature molten salt to generate electricity and sends a portion of the waste heat steam to an air-cooled island for condensate recovery. The remaining waste heat steam is sent to the concentrated brine treatment equipment. The concentrated brine treatment equipment uses the generator's waste heat (waste heat steam) as the main heat source for concentrated brine evaporation, with the high-temperature molten salt as a backup heat source. This achieves full utilization of waste heat while ensuring efficient and compliant treatment of the concentrated brine, realizing the recycling of waste heat and water resources. It boasts advantages such as green and low-carbon operation, high efficiency, and comprehensive resource utilization. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of a concentrated brine treatment system utilizing waste heat from a solar thermal power plant, according to the present invention.

[0021] Figure 2 This is a schematic diagram of the concentrated brine treatment equipment of this utility model.

[0022] The components include: 1. Heat absorption tower; 2. Hot salt tank; 201. Hot salt tank inlet; 202. Hot salt tank outlet; 3. Cold salt tank; 301. Cold salt tank outlet; 302. Cold salt tank inlet; 4. Power generation system; 401. First hot salt inlet; 402. First steam outlet; 403. First cold salt outlet; 5. Air-cooled island; 6. Concentrated brine treatment equipment; 601. Steam inlet; 602. Steam pipe; 603. Second cold salt outlet; 604. Molten salt pipe; 605. Salt storage hopper; 606. Salt outlet; 607. Second hot salt inlet; 608. Second steam outlet; 609. Condensate outlet; 610. Concentrated brine inlet; 611. Rotary motor; 612. Telescopic motor; 613. Telescopic pipe; 614. Fixed plate; 615. Salt scraper; 616. Water distribution pipe; 617. Spray head; 618. Collection tank. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] The present invention will now be described in further detail with reference to the accompanying drawings:

[0030] This invention provides a concentrated brine treatment system that utilizes waste heat from a solar thermal power plant, such as... Figure 1 As shown, the system includes a heat absorption tower 1, a hot salt tank 2, a cold salt tank 3, a power generation system 4, an air-cooled island 5, and a concentrated brine treatment device 6. The outlet of the heat absorption tower 1 is connected to the hot salt tank 2. The hot salt tank 2 is connected to both the power generation system 4 and the concentrated brine treatment device 6. The power generation system 4 is connected to the cold salt tank 3, the air-cooled island 5, and the concentrated brine treatment device 6. The concentrated brine treatment device 6 is connected to the cold salt tank 3. The cold salt tank 3 is connected to the inlet of the heat absorption tower 1.

[0031] The heat absorption tower 1 is used to absorb and convert sunlight reflected by the heliostat and complete the heat exchange process between solar energy and molten salt, transferring heat to the low-temperature molten salt. The heated high-temperature molten salt is then transported to the hot salt tank 2 for storage through the outlet of the heat absorption tower 1.

[0032] The hot salt tank 2 supplies high-temperature molten salt to the power generation system 4 for power generation, and also supplies high-temperature molten salt to the concentrated brine treatment equipment 6 for the evaporation or treatment of concentrated brine. The hot salt tank 2 has a hot salt tank inlet 201 and a hot salt tank outlet 202 on its side wall; the hot salt tank inlet 201 is connected to the outlet of the heat absorption tower 1; the hot salt tank outlet 202 is connected to both the power generation system 4 and the concentrated brine treatment equipment 6. The hot salt tank 2 can achieve a heat storage duration of 8-12 hours, thereby enabling the continuous and stable operation of the power generation system 4. The molten salt is a binary molten salt, comprising 40% KNO3 and 60% NaNO3 by mass percentage. The molten salt tank is a vertical cylindrical self-supporting domed tank with a fully welded structure and a semi-underground installation to enhance structural stability; the outer wall of the salt tank is equipped with an insulation layer to reduce heat loss.

[0033] The cold salt tank 3 stores the low-temperature molten salt released from the power generation system 4 and the concentrated brine treatment equipment 6 after heat is generated, and transports it to the heat absorption tower 1 to form a closed loop of circulating heat transfer medium. The recycling of molten salt avoids the frequent replenishment or discharge of heat medium in traditional systems, significantly reducing operating costs and resource consumption. The side wall of the cold salt tank 3 is provided with a cold salt tank outlet 301 and a cold salt tank inlet 302; the cold salt tank outlet 301 is connected to the inlet of the heat absorption tower 1; the cold salt tank inlet 302 is connected to both the power generation system 4 and the concentrated brine treatment equipment 6. Through the transfer in the cold salt tank 3, the waste heat from power generation in the power generation system 4 and the process waste heat from the concentrated brine treatment equipment 6 are both recovered to the heat absorption tower 1 for reheating, realizing the recovery and utilization of heat energy and improving the overall energy efficiency of the system.

[0034] The power generation system 4 utilizes the thermal energy of high-temperature molten salt to drive a steam turbine for power generation, realizing the core power generation function of the solar thermal power plant. The power generation system 4 includes equipment such as a preheater, superheater, reheater, steam drum, and steam generator. The preheater uses high-temperature molten salt to initially heat the feedwater, then sends the preheated water to the steam generator to produce saturated steam. The mixture of steam and water enters the steam drum, undergoes steam-water separation to obtain high-quality saturated steam, and is sent to the superheater for further heating to drive the high-pressure cylinder of the steam turbine. The low-temperature steam discharged from the high-pressure cylinder is reheated by the reheater and enters the medium and low-pressure cylinders to continue power generation. The exhaust steam after power generation is condensed into condensate by the condenser and finally recycled back to the preheater, forming a closed-loop water-steam cycle system, achieving cascaded utilization of thermal energy and efficient power generation. The power generation system 4 is equipped with a first hot salt inlet 401, a first steam outlet 402, and a first cold salt outlet 403. The first hot salt inlet 401 is connected to the hot salt tank outlet 202. The first steam outlet 402 is connected to the air-cooled island 5 and the concentrated brine treatment equipment 6, respectively. The first cold salt outlet 403 is connected to the cold salt tank inlet 302. The power generation system 4 receives high-temperature molten salt from the hot salt tank 2. In the power generation system 4, steam is generated through a series of heat exchanges with water. The steam drives a steam turbine to generate electricity. The low-temperature molten salt after heat exchange is discharged to the cold salt tank 3. The steam generated is discharged from the first steam outlet 402. Part of the steam is transported through pipelines to the air-cooled island 5 to form condensate for recycling. The other part of the steam is transported through pipelines to the concentrated brine treatment equipment 6 as a heat source for concentrated water evaporation treatment.

[0035] The concentrated brine treatment equipment 6 utilizes part of the high-temperature molten salt heat from the hot salt tank 2 and the waste heat from the power generation system 4 to provide thermal energy for the evaporation, crystallization, or desalination of concentrated brine. Through evaporation, the industrial concentrated brine is reduced in volume or recycled.

[0036] like Figure 2As shown, the concentrated brine treatment device 6 includes a sidewall; the sidewall forms a cavity structure; a concentrated brine inlet 610 is provided at the top of the concentrated brine treatment device 6; the concentrated brine inlet 610 is connected to a telescopic pipe 613, and the telescopic pipe 613 extends into the cavity structure, the position of the telescopic pipe 613 inside the cavity structure can be dynamically adjusted according to actual needs. A steam inlet 601, a second cold salt outlet 603, and a second hot salt inlet 607 are provided on the sidewall; the steam inlet 601 is connected to a first steam outlet 402; the second cold salt outlet 603 is connected to a cold salt tank inlet 302; the second hot salt inlet 607 is connected to a hot salt tank outlet 202; the second cold salt outlet 603 and the second hot salt inlet 607 are connected through a molten salt pipe 604. Steam inlet 601 directly introduces waste heat from power generation (such as low-pressure steam) into concentrated brine treatment equipment 6, using low-grade heat energy to accelerate the evaporation of concentrated brine and reduce treatment energy consumption; the second hot salt inlet 607 introduces high-temperature molten salt as a heat source, forming a self-circulating loop through molten salt pipeline 604 and second cold salt outlet 603. After the molten salt releases heat, it is recovered by cold salt tank 3 and returned to heat absorption tower 1 for reheating, realizing closed-loop circulation of molten salt and cascade utilization of energy; this utility model integrates the multi-energy complementarity of waste heat steam and molten salt, taking into account both the efficient treatment of high-salt wastewater and the energy efficiency improvement of solar thermal system, while reducing operating costs and environmental impact.

[0037] The concentrated brine treatment device 6 is equipped with a rotary motor 611 and a telescopic motor 612 at its top. Both the rotary motor 611 and the telescopic motor 612 are connected to the telescopic pipe 613. The telescopic pipe 613 can rotate and extend and retract vertically under the action of the rotary motor 611 and the telescopic motor 612, thereby dynamically adjusting the outlet position of the telescopic pipe 613.

[0038] The bottom of the telescopic pipe 613 is connected to the water distribution pipe 616. Multiple spray heads 617 are installed on the water distribution pipe 616. During the rotation of the telescopic pipe 613, the spray heads 617 evenly distribute concentrated brine onto the side wall of the device, achieving evaporative desalination through heat exchange with steam. Simultaneously, the distribution design of the water distribution pipe 616, combined with the rotation and telescopic function of the telescopic pipe 613, allows for dynamic adjustment of the spray range and position, preventing excessively high local concentrations or accumulation of crystalline salts, reducing the risk of scaling, and extending the equipment's operating cycle.

[0039] The outer wall of the telescopic tube 613 is connected to the fixed plate 614; a salt scraping plate 615 is provided around the fixed plate 614. During the up-and-down movement of the telescopic tube 613, the salt scraping plate 615 can remove salt from the side wall, avoiding salt accumulation that affects heat exchange efficiency.

[0040] The side wall is provided with a steam inlet 601, a condensate outlet 609, a second steam outlet 608, and a collection tank 618. The steam inlet 601 and the second steam outlet 608 are connected by a steam pipe 602, and the steam after heat exchange is discharged from the second steam outlet 608. The collection tank 618 is connected to the condensate outlet 609. The water evaporated from the concentrated brine is condensed on the inner side wall of the concentrated brine treatment equipment 6, collected through the collection tank 618, and discharged through the condensate outlet 609. The discharged steam and condensate after heat exchange are collected and recycled.

[0041] The cavity structure is equipped with a salt storage hopper 605; the concentrated brine treatment device 6 is equipped with a salt outlet 606 at its bottom; the salt storage hopper 605 and the salt outlet 606 are connected. The salt storage hopper 605 can collect the crystalline salt precipitated after the concentrated brine evaporates and discharge it periodically from the salt outlet 606, reducing the frequency of manual cleaning.

[0042] The working process of this utility model is as follows:

[0043] Sunlight is reflected by a heliostat to the heat absorber tower 1, heating the low-temperature molten salt to form high-temperature molten salt. This high-temperature molten salt is then transported via pipeline from the hot salt tank inlet 201 to the hot salt tank 2 for temporary storage. Most of the temporarily stored high-temperature molten salt enters the power generation system 4 through the hot salt tank outlet 202 and the first hot salt inlet 401, serving as the heat source for the power generation system 4. In the power generation system 4, it undergoes a series of heat exchanges with water to generate steam, which drives a turbine to generate electricity. The low-temperature molten salt, after heat exchange, is discharged through the first cold salt outlet 403 to the cold salt tank 3. The utilized steam is discharged through the first steam outlet 402; part of it is transported via pipeline to the air-cooled island 5 for cooling, producing condensate for recycling, while the other part is transported through the steam inlet 601 to the concentrated brine treatment equipment 6. Concentrated brine from the brine inlet 610 passes sequentially through the telescopic pipe 613 and the water distribution pipe 616, and is sprayed out by the spray head 617. Under the action of the rotary motor 611 and the telescopic motor 612, the spray head 617 moves up and down and rotates, so that the concentrated brine is evenly sprayed on the inner side wall of the concentrated brine treatment equipment 6. Steam enters the steam pipe 602 from the steam inlet 601 and exchanges heat with the concentrated brine sprayed on the inner wall. The evaporated salt is adsorbed on the inner wall and is periodically cleaned by the up and down movement of the salt scraper 615 arranged around the fixed plate 614, and the salt is temporarily stored in the salt storage hopper 605. The evaporated water vapor rises in the cavity structure and condenses on the inner side wall. After being collected by the liquid collection tank 618, it is discharged and recycled through the condensate outlet 609. The steam after heat exchange is discharged and recycled through the second steam outlet 608 connected to the steam pipe 602.

[0044] When the volume of concentrated brine is large, if the concentrated brine is not evaporated in time, it will enter the bottom of the concentrated brine treatment equipment 6 along the inner side wall and fully exchange heat with the high-temperature molten salt entering the molten salt pipeline 604 through the second hot salt inlet 607 to ensure that the concentrated brine meets the treatment standards. The low-temperature molten salt after heat exchange is discharged from the second cold salt outlet 603 and collected in the cold salt tank 3 through the pipeline.

[0045] This invention develops a concentrated brine treatment system that utilizes waste heat from a solar thermal power plant. The system uses the waste heat from the generator as the main heat source for the evaporation of concentrated brine, while simultaneously drawing in a high-temperature molten salt as a backup heat source. This system achieves full utilization of waste heat while ensuring efficient and compliant treatment of concentrated brine, realizing the recycling of waste heat and water resources. It has advantages such as being green and low-carbon, highly efficient and circular, and comprehensively utilizing resources.

[0046] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A concentrated brine treatment system utilizing waste heat from a solar thermal power plant, characterized in that, It includes a heat absorption tower (1), a hot salt tank (2), a cold salt tank (3), a power generation system (4), an air-cooled island (5), and a concentrated brine treatment device (6); the outlet of the heat absorption tower (1) is connected to the hot salt tank (2); the hot salt tank (2) is connected to the power generation system (4) and the concentrated brine treatment device (6) respectively; the power generation system (4) is connected to the cold salt tank (3), the air-cooled island (5), and the concentrated brine treatment device (6) respectively; the concentrated brine treatment device (6) is connected to the cold salt tank (3); the cold salt tank (3) is connected to the inlet of the heat absorption tower (1).

2. The concentrated brine treatment system utilizing waste heat from a solar thermal power plant according to claim 1, characterized in that, The hot salt tank (2) has a hot salt tank inlet (201) and a hot salt tank outlet (202) on its side wall; the hot salt tank inlet (201) is connected to the outlet of the heat absorption tower (1); the hot salt tank outlet (202) is connected to the power generation system (4) and the concentrated brine treatment equipment (6) respectively.

3. A concentrated brine treatment system utilizing waste heat from a solar thermal power plant according to claim 1, characterized in that, The power generation system (4) is provided with a first hot salt inlet (401), a first steam outlet (402) and a first cold salt outlet (403); the first hot salt inlet (401) is connected to the hot salt tank (2); the first steam outlet (402) is connected to the air-cooled island (5) and the concentrated brine treatment equipment (6) respectively; the first cold salt outlet (403) is connected to the cold salt tank (3).

4. A concentrated brine treatment system utilizing waste heat from a solar thermal power plant according to claim 1, characterized in that, The cold salt tank is provided with a cold salt tank outlet (301) and a cold salt tank inlet (302) on its side wall; the cold salt tank outlet (301) is connected to the inlet of the heat absorption tower (1); the cold salt tank inlet (302) is connected to the power generation system (4) and the concentrated brine treatment equipment (6) respectively.

5. A concentrated brine treatment system utilizing waste heat from a solar thermal power plant according to claim 1, characterized in that, The concentrated brine treatment equipment (6) includes a side wall; the side wall forms a cavity structure; the concentrated brine treatment equipment (6) is provided with a concentrated brine inlet (610) at the top; the concentrated brine inlet (610) is connected to a telescopic pipe (613), and the telescopic pipe (613) extends into the cavity structure; the side wall is provided with a steam inlet (601), a second cold salt outlet (603) and a second hot salt inlet (607); the steam inlet (601) is connected to a power generation system (4); the second cold salt outlet (603) is connected to a cold salt tank (3); the second hot salt inlet (607) is connected to a hot salt tank (2); the second cold salt outlet (603) and the second hot salt inlet (607) are connected through a molten salt pipe (604).

6. A concentrated brine treatment system utilizing waste heat from a solar thermal power plant according to claim 5, characterized in that, The concentrated brine treatment equipment (6) is equipped with a rotary motor (611) and a telescopic motor (612) on the top; both the rotary motor (611) and the telescopic motor (612) are connected to the telescopic pipe (613).

7. A concentrated brine treatment system utilizing waste heat from a solar thermal power plant according to claim 5, characterized in that, The bottom of the telescopic pipe (613) is connected to the water distribution pipe (616); the water distribution pipe (616) is provided with multiple spray heads (617).

8. A concentrated brine treatment system utilizing waste heat from a solar thermal power plant according to claim 5, characterized in that, The outer wall of the telescopic tube (613) is connected to the fixed plate (614); a salt scraper (615) is provided around the fixed plate (614).

9. A concentrated brine treatment system utilizing waste heat from a solar thermal power plant according to claim 5, characterized in that, The side wall is provided with a steam inlet (601), a condensate outlet (609), a second steam outlet (608), and a collection tank (618); the steam inlet (601) and the second steam outlet (608) are connected by a steam pipe (602); the collection tank (618) and the condensate outlet (609) are connected.

10. A concentrated brine treatment system utilizing waste heat from a solar thermal power plant according to claim 5, characterized in that, The cavity structure is equipped with a salt storage hopper (605); the concentrated brine treatment device (6) is equipped with a salt outlet (606) at the bottom; the salt storage hopper (605) and the salt outlet (606) are connected.

Images