High-salinity wastewater treatment device and treatment method thereof

Abstract

This invention relates to the field of wastewater treatment equipment technology, and discloses a high-salinity wastewater treatment device and its treatment method, including a base water tank, an evaporation mechanism on the base water tank for heating and evaporating high-salinity wastewater, and a water conveying mechanism on the base water tank for conveying high-salinity wastewater. The evaporation mechanism consists of an evaporation cylinder and an evaporation roller. The evaporation cylinder is installed on the base water tank and communicates with the base water tank to provide heat energy for the evaporation of high-salinity wastewater. Compared with the static heating evaporation method used in traditional high-salinity wastewater evaporation equipment, this invention adapts to the dynamic setting of the evaporation elements. During the rotation of the evaporation roller, the cleaning strip can effectively clean the dirt on the surface of the evaporation roller, avoiding the reduction of heat conduction efficiency caused by scaling on the surface of the evaporation roller, and ensuring the evaporation effect of high-salinity wastewater.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment equipment technology, specifically to a high-salinity wastewater treatment device and its treatment method. Background Technology

[0002] High-salinity wastewater refers to industrial or domestic wastewater with a total dissolved solids content significantly higher than that of conventional water bodies. Its salt concentration is usually measured by conductivity, chloride ion concentration, or total salt content. It poses a high degree of harm to the environment. Specifically, it can cause soil salinization, which in turn can lead to the dehydration and death of plant roots and stems. Furthermore, with the accumulation of salt in the wastewater over a long period of time, it can disrupt the balance of aquatic ecosystems and affect the survival of fish and microorganisms. Therefore, it is necessary to treat high-salinity wastewater generated in domestic and industrial settings to render it harmless.

[0003] Currently, the mainstream technology for treating high-salinity wastewater is the crystallization evaporation method. This method heats the wastewater to its boiling point, causing dissolved salts to crystallize and precipitate, while simultaneously generating water vapor, thus achieving effective separation of salts from the aqueous phase and ultimately achieving the goal of harmless treatment of high-salinity wastewater. However, in the actual operation of the crystallization evaporation process, there is a significant technical bottleneck: crystalline salts easily form a deposit layer on the surface of the heating equipment, i.e., scaling. This scaling significantly reduces the heat transfer coefficient of the heat exchange interface, leading to a decrease in heat transfer efficiency, which in turn increases energy consumption and drives up the overall operating cost of wastewater treatment. In addition, the deposition of crystalline salts also hinders the continuous operation of the equipment, requiring periodic shutdowns for cleaning. This not only increases the frequency and cost of maintenance but also leads to interruptions in the wastewater treatment process, affecting the overall treatment efficiency and capacity stability. Summary of the Invention

[0004] The purpose of this invention is to provide a high-salinity wastewater treatment device and method to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] This invention relates to a high-salinity wastewater treatment device, comprising a base water tank, an evaporation mechanism mounted on the base water tank for heating and evaporating the high-salinity wastewater, and a water conveying mechanism mounted on the base water tank for conveying the high-salinity wastewater. The evaporation mechanism consists of an evaporation cylinder and an evaporation roller. The evaporation cylinder is mounted on and connected to the base water tank, providing heat energy for the evaporation of the high-salinity wastewater. The evaporation roller is rotatably mounted on the evaporation cylinder, contacting the high-salinity wastewater and completing its evaporation. The evaporation roller has a hollow structure, and a discharge pipe is installed inside the evaporation roller, connected to the evaporation roller. One end of the discharge pipe extends outside the evaporation cylinder, and a discharge auger is installed inside the discharge pipe to discharge impurities entering the discharge pipe.

[0007] Furthermore, a cleaning strip is installed on the evaporator cylinder. The cleaning strip contacts the evaporator roller and is used to clean impurities on the surface of the evaporator roller during its rotation.

[0008] Furthermore, a discharge channel is provided on the evaporation roller to facilitate the discharge of impurities from the outside of the evaporation roller into the evaporation roller. A capture plate is slidably installed on the evaporation roller, and the capture plate passes through the discharge channel. There is a gap between the capture plate and the inner walls on both sides of the discharge channel. The capture plate contacts the inner wall of the evaporation cylinder during the movement.

[0009] Furthermore, one side of the capture plate is designed as a groove, and the middle section of the capture plate is filled with a filter screen, which allows for simultaneous collection of impurities in high-salt wastewater.

[0010] Furthermore, a transmission assembly is provided on the base water tank to drive the evaporation roller to rotate. The transmission assembly consists of a rotating motor and a synchronous belt drive. The rotating motor is mounted on the base water tank, and the synchronous belt drive consists of a synchronous pulley and a synchronous belt. The output shaft of the rotating motor and one end of the evaporation roller are both fitted with synchronous pulleys, and the synchronous belt is fitted on the synchronous pulleys, so that the rotating motor can drive the evaporation roller to rotate.

[0011] Furthermore, the evaporation cylinder is equipped with a gear rotating assembly, which drives the discharge auger to rotate while the evaporation roller rotates; the gear rotating assembly consists of a transmission gear one, a transmission gear two, and a gear frame. The transmission gear one is mounted on the evaporation roller, the transmission gear two is mounted on the discharge auger, and the gear frame is rotatably mounted on the evaporation cylinder. The gear frame consists of a rotating rod and two connecting gears. Both connecting gears are mounted on the rotating rod and are respectively meshed with the transmission gear one and the transmission gear two.

[0012] Furthermore, a steam conveying assembly is provided on the evaporation cylinder. The steam conveying assembly is used to conduct the steam generated by the evaporation mechanism to the evaporation roller, and heat the evaporation roller by the steam to improve the utilization efficiency of thermal energy.

[0013] Furthermore, a discharge assembly is provided on the outside of the evaporation cylinder. The discharge assembly is connected to the base water tank. The water discharged from the discharge pipe is discharged into the base water tank and circulated for heating and evaporation through the water conveying mechanism.

[0014] This invention relates to a treatment method for high-salinity wastewater, comprising the following steps:

[0015] S1: High-salt wastewater is discharged into the evaporator through the water conveying mechanism;

[0016] S2: Start the transmission assembly to drive the evaporation roller to rotate, and heat the high-salt wastewater through the evaporation roller. The water flows from top to bottom in the evaporation cylinder and contacts the evaporation roller. The heat on the evaporation roller evaporates the high-salt wastewater.

[0017] S3: During the rotation of the evaporation roller, the cleaning strip contacts the surface of the evaporation roller to clean the impurities adhering to the surface of the evaporation roller. The impurities are discharged into the discharge pipe through the discharge channel and discharged through the discharge auger.

[0018] S4: During the rotation of the evaporation roller, the capture plate captures the impurities and precipitated crystal salt in the high-salt wastewater, and discharges them into the discharge pipe through the discharge channel. The impurities in the discharge pipe are discharged by the discharge auger.

[0019] S5: Impurities are collected and removed through the filter box and filter frame, and the wastewater discharged from the discharge pipe is reintroduced into the base water tank.

[0020] The present invention has the following beneficial effects:

[0021] (1) Compared with the static heating evaporation method used in traditional high-salt wastewater evaporation equipment, the present invention adapts the evaporation element to be dynamically set. During the rotation of the evaporation roller, the cleaning strip can effectively clean the dirt on the surface of the evaporation roller, avoiding the reduction of heat conduction efficiency caused by scaling on the surface of the evaporation roller, thus ensuring the evaporation effect of high-salt wastewater. At the same time, the present invention is relatively sealed. The water supply mechanism can make the water flow back and forth, so that the entire evaporation frame is in a sealed state, reducing the heat loss of the evaporation roller due to contact with the external environment. This method can further improve the heat utilization rate of the evaporation roller.

[0022] (2) The present invention designs the evaporation roller as a hollow structure and configures a discharge pipe and a discharge auger inside it. The discharge auger rotates synchronously with the evaporation roller under the drive of the gear assembly. At the same time, a discharge channel is opened on the surface of the evaporation roller to collect impurities while cleaning the surface of the evaporation roller, and then discharge them through the discharge pipe and discharge auger. In addition, the crystalline salt that precipitates and adheres to the surface of the evaporation roller during the evaporation of high-salt wastewater can also be discharged in the same way. This design effectively slows down the precipitation rate of crystalline salt, extends the running time of the equipment, and reduces the frequency of equipment cleaning and maintenance.

[0023] (3) The invention adds a capture plate to the evaporation roller to capture impurities in high-salt wastewater and improve the collection effect of crystalline salt precipitated from high-salt wastewater. This design further slows down the precipitation rate of crystalline salt and improves the filtration effect of high-salt wastewater, preventing impurities in high-salt wastewater from adhering to the evaporation device and causing damage to the evaporation equipment, thereby enhancing the protection of the evaporation equipment.

[0024] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is another structural schematic diagram of the present invention;

[0028] Figure 3 This is a schematic diagram of the top cover structure in this invention;

[0029] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0030] Figure 5 for Figure 4 The diagram shows an enlarged view of section C.

[0031] Figure 6 This is a structural diagram of the filter box and filter frame.

[0032] Figure 7 This is a schematic diagram of the evaporation roller in this invention;

[0033] Figure 8 This is a schematic diagram of the capture plate in this invention.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] In the diagram: 1. Base water tank; 2. Evaporation cylinder; 3. Top cover; 4. Discharge assembly; 6. Water conveying mechanism; 7. Steam conveying assembly; 8. Transmission assembly; 9. Discharge pipe; 10. Discharge auger; 11. Evaporation roller; 13. Cleaning bar; 14. Capturing plate; 15. Filter box; 16. Filter frame; 17. Sealing disc; 18. Oil storage tank; 19. Oil pump; 201. Transmission gear one; 202. Transmission gear two; 203. Gear frame; 20. Connecting channel one; 21. Connecting channel two; 22. Discharge channel; 23. Oil pipe one; 24. Oil pipe two. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Please see Figures 1-8As shown, this invention is a high-salinity wastewater treatment device, including a base tank 1, an evaporation mechanism mounted on the base tank 1, and a wastewater delivery pipe mounted on the base tank 1. The wastewater delivery pipe is connected to external wastewater delivery equipment for inputting high-salinity wastewater into the base tank 1. A level gauge is installed inside the base tank 1 to monitor the wastewater volume. When the volume drops to a corresponding height, wastewater is input into the base tank 1 through the wastewater delivery pipe. In practice, the level gauge is adapted to the external wastewater delivery equipment. After the level gauge detects that the water flow in the base tank 1 has dropped to a certain height, the external wastewater delivery equipment inputs water into the base tank 1. A valve needs to be installed on the external wastewater delivery equipment. To prevent steam from escaping through the wastewater conveying pipe, a water conveying mechanism 6 is installed on the base water tank 1 for heating and evaporating high-salt wastewater. A top cover 3 is installed on the evaporation tank, bolted to the evaporation cylinder 2. The water conveying mechanism 6 includes an inlet pipe and a water pump. The inlet pipe is installed on the top cover 3 and has multiple nozzles arranged at equal intervals to ensure that the high-salt wastewater is evenly discharged into the evaporation cylinder 2, ensuring efficient evaporation. The water pump is installed on the base water tank 1 and connected to the inlet pipe for conveying the high-salt wastewater. The evaporation mechanism consists of the evaporation cylinder 2 and the evaporation roller 11. The evaporation cylinder 2 is installed on the base water tank 1. The evaporation cylinders 2 are arranged vertically and connected to the base water tank 1. Multiple cylinders 2 are vertically stacked, allowing high-salt wastewater to flow from high to low within the evaporation cylinders 2. During this flow, the evaporation rollers 11 can fully contact the high-salt wastewater, improving the evaporation effect. The evaporation rollers 11 have a hollow structure and a discharge pipe 9 is installed inside. The discharge pipe 9 is connected to the evaporation rollers 11, and a connecting groove 20 is provided on the discharge pipe 9. A connecting groove 21 is provided on the evaporation rollers 11. During the rotation of the evaporation rollers 11, the connecting groove 21 and the connecting groove 20 are intermittently connected, thus completing the material conveying. The connecting groove 20 on the discharge pipe 9 is designed to... The discharge pipe 9 is positioned above the discharge pipe 9, with one end extending to the outside of the evaporator cylinder 2. A discharge auger 10 is installed inside the discharge pipe 9 to discharge impurities entering the discharge pipe 9. A discharge assembly 4 is installed on one side of the evaporator cylinder 2. The discharge assembly 4 consists of a conveying pipe and a filter box 15. The top of the conveying pipe is sealed and is connected to the discharge pipe 9. The filter box 15 is installed on the base water tank 1 and is connected to the base water tank 1. A filter frame 16 is installed on the filter box 15. Water flows through the discharge pipe into the conveying pipe and then into the filter box 15. After being filtered by the filter frame 16, the water is discharged into the base water tank 1. During maintenance, the filter frame 16 can be removed for cleaning impurities.

[0038] A cleaning strip 13 is installed on the evaporator cylinder 2. The cleaning strip 13 contacts the evaporator roller 11 and is used to clean impurities on the surface of the evaporator roller 11 during the rotation of the evaporator roller 11.

[0039] The evaporation roller 11 is provided with a discharge channel 22 to facilitate the discharge of impurities from the outside of the evaporation roller 11 into the evaporation roller 11. A capture plate 14 is slidably installed on the evaporation roller 11. The capture plate 14 passes through the discharge channel 22. There is a gap between the capture plate 14 and the inner walls on both sides of the discharge channel 22. The capture plate 14 contacts the inner wall of the evaporation cylinder 2 during movement. The capture plate 14 is made of steel and has a certain weight. When the capture plate 14 is at the highest point of the evaporation roller 11, it retracts into the evaporation roller 11 under the action of gravity. When the capture plate 14 is at the lowest point of the evaporation roller 11, it extends out of the evaporation roller 11 under the action of gravity.

[0040] The evaporation roller 11 is divided into multiple chambers by multiple partition plates. The chamber equipped with the trapping plate 14 is sealed on both sides with sealing blocks, and the discharge chute 22 is connected to the chamber with the trapping plate 14. The remaining chambers are sealed and not connected to the evaporation cylinder 2. Both sides of the evaporation roller 11 are sealed with sealing discs 17, and the sealing discs 17 are rotatably connected to the evaporation roller 11. Figure 7 As shown, chamber A is a steam conveying chamber, and chamber B is a chamber equipped with a capture plate 14. Chambers A and B are intermittently arranged.

[0041] An oil delivery groove is provided on the sealing disc 17, and an oil delivery channel is provided on the evaporation roller 11. The oil delivery channel is connected to the oil delivery groove. An oil storage tank 18 is installed on the base water tank 1. A heating rod is installed in the oil storage tank 18. An oil delivery pump 19 is installed on the oil storage tank 18. An oil delivery pipe 23 is installed on the sealing disc 17 on the same side as the evaporation cylinder 2. The oil delivery pipe 23 is connected to the corresponding oil delivery groove and is also connected to the oil delivery pump 19. An oil delivery pipe 24 is installed on the sealing disc 17 on the other side of the evaporation cylinder 2. The oil delivery pipe 24 is connected to the corresponding oil delivery groove. One end of the oil delivery pipe 24 extends into the oil storage tank 18. The oil storage tank 18 stores heat transfer oil. The heat transfer oil can be used to transfer heat to the evaporation roller 11 to complete the heating and evaporation of the water flow.

[0042] One side of the capture plate 14 is grooved, and the middle section of the capture plate 14 is filled with a filter screen, so that impurities in high-salt wastewater can be collected simultaneously.

[0043] A transmission assembly 8 is provided on the base water tank 1 to drive the evaporation roller 11 to rotate. The transmission assembly 8 consists of a rotating motor and a synchronous belt drive. The rotating motor is mounted on the base water tank 1, and the synchronous belt drive consists of a synchronous pulley and a synchronous belt. The output shaft of the rotating motor and one end of the evaporation roller 11 are both fitted with synchronous pulleys, and the synchronous belt is fitted on the synchronous pulleys, so that the rotating motor can drive the evaporation roller 11 to rotate. A gear rotating assembly is provided on the evaporation cylinder 2 to drive the discharge auger 10 to rotate at the same time as the evaporation roller 11 rotates. The gear rotating assembly consists of a first transmission gear 201, a second transmission gear 202, and a gear frame 203. The first transmission gear 201 is fitted on the evaporation roller 11, the second transmission gear 202 is fitted on the discharge auger 10, and the gear frame 203 is rotatably mounted on the evaporation cylinder 2. The gear frame 203 consists of a rotating rod and two connecting gears. Both connecting gears are fitted on the rotating rod and are respectively meshed with the first transmission gear 201 and the second transmission gear 202.

[0044] A steam conveying assembly 7 is provided on the evaporating cylinder 2. The steam conveying assembly 7 is used to conduct the steam generated by the evaporation mechanism to the evaporating roller 11. The steam heats the evaporating roller 11, improving the utilization efficiency of thermal energy. The steam conveying assembly 7 consists of a steam conveying pipe and a steam discharge pipe. The steam conveying pipe is located inside the top cover 3. The end of the steam conveying pipe located inside the top cover 3 is provided with multiple air inlets. The steam conveying pipe is connected to the sealed chamber on the evaporating roller 11 through a branch pipe, thereby conveying the steam generated by evaporation to the evaporating roller 11. The steam discharge assembly is located on the side of the evaporating cylinder 2 away from the steam conveying pipe. It is also connected to the sealed chamber on the evaporating roller 11 through a branch pipe, thereby discharging the utilized steam. In this process, the branch pipe connected to the steam discharge pipe also discharges the water generated by the steam. It is only necessary to install the branch pipe at a lower position.

[0045] In use, high-salt wastewater is first fed into the base water tank 1 through the wastewater conveying pipe. Then, the high-salt wastewater in the base water tank is conveyed to the top of the evaporation cylinder 2 through the water conveying mechanism, and then sprayed down. The transmission component 8 drives the evaporation roller 11 to rotate. During the contact between the high-salt wastewater and the evaporation roller 11, the heat on the evaporation roller 11 heats and evaporates the high-salt wastewater, thus completing the evaporation operation of the high-salt wastewater. As the water flow continues to flow in, some of the unevaporated water flows down into the base water tank 1. At this time, the high-salt wastewater can be discharged back into the evaporation cylinder 2 through the water conveying mechanism 6 to continue heating and evaporation. This can form a water circulation evaporation method. During the evaporation of high-salt wastewater, the steam generated by evaporation is conveyed to the evaporation roller 11 through the steam conveying component 7 to heat the evaporation roller 11. This can make full use of heat and ensure the heat utilization rate.

[0046] During the rotation of the evaporation roller 11, impurities on the surface of the evaporation roller 11 can be conveyed to the discharge pipe 9 through the discharge channel 22 by the cleaning strip 13. The impurities are then discharged from the evaporation cylinder 2 by the discharge auger 10. At the same time, during the rotation of the evaporation roller 11, the capture plate 14 is retracted and extended within the evaporation roller 11 under the action of gravity. When the capture plate 14 extends out of the evaporation roller 11, it can collect impurities and precipitated crystal salt in the high-salt wastewater. These are also conveyed to the discharge pipe 9 through the discharge channel 22 and then discharged from the evaporation cylinder 2. The impurities can be filtered, collected, and treated by the filter frame 16. This can greatly improve the discharge of impurities and crystal salt in the high-salt wastewater, slow down the precipitation of crystal salt, and improve the protection effect of the evaporation equipment.

[0047] This invention relates to a treatment method for high-salinity wastewater, comprising the following steps:

[0048] S1: High-salt wastewater is discharged into the evaporation cylinder 2 through the water conveying mechanism 6;

[0049] S2: Start the transmission assembly 8 to drive the evaporation roller 11 to rotate. The high-salt wastewater is heated by the evaporation roller 11. The water flows from top to bottom in the evaporation cylinder 2 and contacts the evaporation roller 11. The heat on the evaporation roller 11 evaporates the high-salt wastewater.

[0050] S3: During the rotation of the evaporation roller 11, the cleaning strip 13 contacts the surface of the evaporation roller 11 to clean the impurities adhering to the surface of the evaporation roller 11. The impurities are discharged into the discharge pipe 9 through the discharge channel 22 and discharged through the discharge auger 10.

[0051] S4: During the rotation of the evaporation roller 11, the capture plate 14 captures the impurities and precipitated crystal salt in the high-salt wastewater, and discharges them into the discharge pipe 9 through the discharge channel 22. The discharge screw 10 discharges the impurities in the discharge pipe 9.

[0052] S5: Impurities are collected and removed through the filter box 15 and filter frame 16, and the wastewater discharged from the discharge pipe 9 is reintroduced into the base water tank 1.

[0053] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A high-salinity wastewater treatment device, comprising a base water tank (1), an evaporation mechanism is arranged on the base water tank (1) and used for heating and evaporating the high-salinity wastewater, and a water conveying mechanism (6) is arranged on the base water tank (1) and used for conveying the high-salinity wastewater, characterized in that: the evaporation mechanism comprises an evaporation cylinder (2) and an evaporation roller (11), the evaporation cylinder (2) is installed on the base water tank (1) and communicates with the base water tank (1), and is used for providing heat energy for evaporation of the high-salinity wastewater, and the evaporation roller (11) is rotatably installed on the evaporation cylinder (2) and used for contacting the high-salinity wastewater and completing evaporation of the high-salinity wastewater; the evaporation roller (11) has a hollow structure, a discharge pipe (9) is arranged in the evaporation roller (11) and communicates with the evaporation roller (11), one end of the discharge pipe (9) extends to outside of the evaporation cylinder (2), and a discharge auger (10) is arranged in the discharge pipe (9) and used for discharging impurities entering the discharge pipe (9); a discharge slot (22) is arranged on the evaporation roller (11) and used for conveniently discharging the impurities outside the evaporation roller (11) into the evaporation roller (11), a capture plate (14) is slidably installed on the evaporation roller (11) and penetrates through the discharge slot (22), a gap is formed between the capture plate (14) and the inner walls of the discharge slot (22), and the capture plate (14) contacts the inner wall of the evaporation cylinder (2) in the moving process; one side of the capture plate (14) is provided with a groove, and a middle segment of the capture plate (14) is filled with a filter screen, so that the impurities in the high-salinity wastewater can be captured and collected at the same time; a steam conveying assembly (7) is arranged on the evaporation cylinder (2) and used for conveying steam generated by the evaporation mechanism into the evaporation roller (11), the evaporation roller (11) is heated by the steam, and the utilization efficiency of heat energy is improved. a cleaning strip (13) is installed on the evaporation cylinder (2) and contacts the evaporation roller (11), and is used for cleaning the impurities on the surface of the evaporation roller (11) in the rotating process of the evaporation roller (11).

2. The high-salinity wastewater treatment device of claim 1, wherein: a transmission assembly (8) is arranged on the base water tank (1) and used for driving the evaporation roller (11) to rotate; 3. The high-salinity wastewater treatment device of claim 2, wherein: the transmission assembly (8) comprises a rotating motor and a synchronous belt transmission member, the rotating motor is installed on the base water tank (1), the synchronous belt transmission member comprises a synchronous wheel and a synchronous belt, the output shaft of the rotating motor and one end of the evaporation roller (11) are both sleeved with the synchronous wheel, and the synchronous belt is sleeved on the synchronous wheel, so that the rotating motor can drive the evaporation roller (11) to rotate. a gear rotating assembly is arranged on the evaporation cylinder (2) and used for driving the discharge auger (10) to rotate while the evaporation roller (11) rotates.

4. The high-salinity wastewater treatment device of claim 3, wherein: ​ The gear rotating assembly is composed of a transmission gear one (201), a transmission gear two (202) and a gear frame (203). The transmission gear one (201) is sleeved on the evaporation roller (11), the transmission gear two (202) is sleeved on the discharging auger (10), and the gear frame (203) is rotatably installed on the evaporation cylinder (2). The gear frame (203) is composed of a rotating rod and two connecting gears, both of which are sleeved on the rotating rod and are in meshing connection with the transmission gear one (201) and the transmission gear two (202) respectively.

5. The high-salinity wastewater treatment device of claim 4, wherein: The outer side of the evaporation cylinder is provided with a discharging assembly (4) which is in communication with the base water tank (1). The water flow discharged from the discharging pipe (9) is discharged into the base water tank (1) and is heated by the water conveying mechanism (6) for circulation.

6. The treatment method of the high-salinity wastewater treatment device according to claim 5, comprising the following steps: S1: discharging high-salinity wastewater into the evaporation cylinder (2) through the water conveying mechanism (6); S2: starting the transmission assembly (8) to drive the evaporation roller (11) to rotate, heating the high-salinity wastewater by the evaporation roller (11), and making the water flow in the evaporation cylinder (2) contact with the evaporation roller (11) from top to bottom, and evaporating the high-salinity wastewater by the heat on the evaporation roller (11); S3: in the process of rotating the evaporation roller (11), the cleaning strip (13) is in surface contact with the evaporation roller (11) to clean the impurities adhered to the surface of the evaporation roller (11), the impurities are discharged into the discharging pipe (9) through the discharging channel (22), and the impurities in the discharging pipe (9) are discharged by the discharging auger (10); S4: in the process of rotating the evaporation roller (11), the captured plate (14) captures the impurities and the precipitated crystalline salt in the high-salinity wastewater, the impurities are discharged into the discharging pipe (9) through the discharging channel (22), and the impurities in the discharging pipe (9) are discharged by the discharging auger (10); S5: the impurities are collected and removed by the filter box (15) and the filter frame (16), and the wastewater discharged from the discharging pipe (9) is re-input into the base water tank (1).

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