Saline-alkali soil desalting device
The desalination device for saline-alkali soil, consisting of a support base, treatment tank, water storage tank, and reverse osmosis unit, solves the problem of easy clogging of semi-permeable membranes by using a combination of filter plates and reverse osmosis membranes, achieving efficient desalination and convenient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-12
- Publication Date
- 2026-04-14
AI Technical Summary
In existing salt removal devices for saline-alkali land, semi-permeable membranes are easily clogged by particulate impurities, resulting in poor treatment effect and low efficiency, and the devices are inconvenient to maintain.
The desalination device for saline-alkali land consists of a support base, a treatment tank, a water storage tank, and a reverse osmosis unit. It utilizes a combination of filter plates and reverse osmosis membranes. The filter plates trap impurities, while the reverse osmosis membranes treat the solution. The device is designed to facilitate the disassembly and replacement of the filter plates.
It effectively prevents impurities from clogging the filter, improves desalination efficiency and purification effect, enhances the portability of the device, and facilitates maintenance and replacement of filter plates.
Smart Images

Figure CN224111655U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of saline-alkali land desalination technology, and in particular to a saline-alkali land soil desalination device. Background Technology
[0002] Saline-alkali land is a general term for salt land, alkali land, salinized land, and alkalized land. It is characterized by high soil salinity or alkalization, poor structure and easy compaction, poor organic matter and nutrients, and weak fertilizer retention capacity. It belongs to degraded soil with poor properties and low fertility. Desalination is the core goal of saline-alkali land management. Desalination can release reserve arable land resources and improve the ability to ensure food security. Therefore, soil desalination devices are needed to desalinate saline-alkali land.
[0003] A saline-alkali land desalination device, with application number CN202321658414.4, includes a saline-alkali land plot. A water circulation assembly is installed above the saline-alkali land plot. The water circulation assembly includes a pumping assembly and an irrigation assembly. The irrigation assembly includes a water pump, an inlet pipe, an outlet pipe, a fixed plate, a connecting pipe, a first pulley, a motor, a second pulley, a belt, a connecting plate, and two spraying assemblies. The water pump is positioned above the saline-alkali land plot. The inlet pipe is fixedly installed at the inlet end of the water pump, and the outlet pipe is fixedly installed at the outlet end of the water pump. The fixed plate is positioned above the saline-alkali land plot, and the connecting pipe is rotatably mounted on the fixed plate and rotatably connected to the outlet pipe. The first pulley is fixedly mounted on the connecting pipe, the motor is fixedly mounted on the fixed plate, and the second pulley is fixedly mounted on the output shaft of the motor. This saline-alkali land desalination device has the advantage of enabling water circulation and reducing water waste. However, when brine is directly extracted and treated using a semi-permeable membrane, particulate impurities in the brine can easily deposit on the membrane surface or clog the water flow channels if they directly enter the membrane. This can lead to a decrease in water production or even membrane damage. Furthermore, by placing the semi-permeable membrane directly in a circulation tank for treatment, water in the solution is transferred from a low-concentration solution to a high-concentration solution, causing the solution concentration on both sides of the semi-permeable membrane to tend to be balanced. As a result, the device has a poor treatment effect and low efficiency for brine. Utility Model Content
[0004] In view of the shortcomings of the existing technology, this utility model provides a desalination device for saline-alkali soil.
[0005] An embodiment of this utility model provides a desalination device for saline-alkali land soil, comprising:
[0006] A support base is provided, with a treatment tank and a water storage tank fixedly connected to its upper surface. A treatment assembly is installed on the treatment tank. A reverse osmosis device is fixedly connected to the upper surface of the support base. The reverse osmosis device is disposed on the treatment tank and the water storage tank. A collection assembly is installed on the treatment tank. The treatment assembly includes a fixed frame penetrating the treatment tank. A filter plate is installed on the fixed frame. A fixed shell is fixedly connected to the side wall of the fixed frame. A limit plate is slidably connected inside the fixed shell. Multiple springs are fixedly connected to the inner wall of the fixed shell. All of the multiple springs are fixedly connected to the limit plate. A limit block is fixedly connected to the limit plate. The limit block slidably penetrates the treatment tank. A limit groove is opened on the side wall of the fixed frame. The limit block and the limit groove are matched. A pull rod slidably penetrates the fixed shell. One end of the pull rod is fixedly connected to the limit plate.
[0007] Furthermore, the collection assembly includes a water supply pipe connected to the processing tank, a plurality of support columns are fixedly connected to the lower end face of the support base, a collection tank is fixedly connected to the plurality of support columns, a submersible pump is fixedly installed on the inner wall of the collection tank, the water supply pipe passes through the collection tank and is installed at the liquid outlet end of the submersible pump, a plurality of salt discharge holes are opened on the inner wall of the collection tank, and a non-woven fabric layer is provided on the inner wall of the plurality of salt discharge holes.
[0008] Furthermore, both the water storage tank and the treatment tank are connected to a discharge pipe, and the water storage tank is connected to an inlet pipe. Solenoid valves are fixedly installed on the inlet pipe and the two discharge pipes.
[0009] Furthermore, a pull ring is fixedly connected to the pull rod, and a protective pad is provided on the pull ring.
[0010] Furthermore, a handle is fixedly connected to the fixed frame, and the limiting block is wedge-shaped.
[0011] Furthermore, multiple pads are fixedly connected to the support base, and the lower end surfaces of the multiple pads are provided with anti-slip textures.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] 1. The submersible pump draws the brine from the collection tank into the treatment tank. The filter plate on the fixed frame effectively traps suspended particles and other impurities in the water, preventing impurities from depositing on the surface of the reverse osmosis membrane or clogging the water flow channels, ensuring the desalination efficiency of the device, and preventing damage to the reverse osmosis membrane. Subsequently, the solution is further treated by the reverse osmosis device, resulting in better treatment effect and higher purification efficiency.
[0014] 2. After the device has been used for a long time, the user can pull the pull ring to move the limiting block out of the limiting groove. Then the user can pull out the fixing frame, which makes it convenient for the user to maintain and replace the filter plate, ensuring the filtration efficiency of the filter plate. The fixing frame is easy to install and disassemble through the cooperation of the limiting block and the limiting groove, which improves the portability of the device. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural schematic diagram of a soil desalination device for saline-alkali land as described in an embodiment of this utility model.
[0016] Figure 2 This is a three-dimensional side view of the structure of a soil desalination device for saline-alkali land as described in an embodiment of this utility model.
[0017] Figure 3 This is a three-dimensional sectional view of a soil desalination device for saline-alkali land as described in an embodiment of this utility model.
[0018] Figure 4 This is a three-dimensional sectional view of the treatment box structure of a soil desalination device for saline-alkali land as described in an embodiment of this utility model.
[0019] In the above attached figures: 1 support base, 2 treatment box, 3 water storage tank, 4 reverse osmosis device, 5 fixed frame, 6 filter plate, 7 fixed shell, 8 limiting plate, 9 spring, 10 water supply pipe, 11 support column, 12 collection box, 13 submersible pump, 14 solenoid valve, 15 pull ring. Detailed Implementation
[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.
[0021] like Figures 1-4 As shown in the figure, this utility model embodiment proposes a desalination device for saline-alkali land soil, comprising:
[0022] Support base 1, on which multiple pads are fixedly connected, each with anti-slip textures on its lower surface to improve stability. Treatment tank 2 and water storage tank 3 are fixedly connected to the upper surface of support base 1. Both water storage tank 2 and treatment tank 3 are connected to discharge pipes, and water storage tank 3 is connected to an inlet pipe. Solenoid valves 14 are fixedly installed on the inlet pipe and both discharge pipes. The treated water in water storage tank 3 can be used for further spraying, thus achieving continuous desalination of the saline-alkali land. Waste liquid discharged from the sewage outlet is collected and centrally treated to prevent re-contamination. Treatment tank 2 is equipped with treatment components. A reverse osmosis device 4 is fixedly connected to the upper surface of support base 1. The reverse osmosis device 4 is an existing... The technology utilizes a specially designed high-pressure water pump to pressurize the raw water, causing it to pass through a reverse osmosis membrane under pressure. Due to the extremely small pore size of the reverse osmosis membrane, only water molecules and some small molecules can pass through, while most of the solute is retained on the feed side of the membrane, thus forming a low-concentration water on the other side of the membrane. Impurities in the raw water are effectively removed, producing extremely clear and pure water. The impurities are discharged from the drain end, which will not be elaborated further here. The reverse osmosis device 4 is installed on the treatment tank 2 and the water storage tank 3. The purified water discharge end of the reverse osmosis device 4 is connected to the water storage tank 3. The suction end of the high-pressure water pump on the reverse osmosis device 4 is located on the treatment tank 2, and a collection component is installed on the treatment tank 2.
[0023] The processing assembly includes a fixed frame 5 extending through the processing box 2, a filter plate 6 mounted on the fixed frame 5, the filter plate 6 being filled with an activated carbon filter layer, a fixed shell 7 fixedly connected to the side wall of the fixed frame 5, a limiting plate 8 slidably connected inside the fixed shell 7, multiple springs 9 fixedly connected to the inner wall of the fixed shell 7, all of the springs 9 being fixedly connected to the limiting plate 8, a limiting block fixedly connected to the limiting plate 8, the limiting block slidably extending through the processing box 2, a limiting groove opened on the side wall of the fixed frame 5, the limiting block and the limiting groove matching, a handle fixedly connected to the fixed frame 5 for easy pulling by the user, improving the portability of the device, the limiting block being wedge-shaped, a pull rod slidably extending through the fixed shell 7, one end of the pull rod being fixedly connected to the limiting plate 8, a pull ring 15 fixedly connected to the pull rod, the pull ring 15 having a protective pad layer for easy pulling by the user, improving the portability of the device;
[0024] The collection assembly includes a water supply pipe 10 connected to the treatment tank 2. Multiple support columns 11 are fixedly connected to the lower end face of the support base 1. A collection tank 12 is fixedly connected to the multiple support columns 11. A submersible pump 13 is fixedly installed on the inner wall of the collection tank 12. The submersible pump 13 is a prior art device that submerges a water pump in water and uses the pump body and motor to pump water to the ground or other places. Therefore, it can still operate stably when placed in the collection tank 12. It will not be described in detail here. The water supply pipe 10 passes through the collection tank 12 and is installed at the liquid outlet of the submersible pump 13. Multiple salt discharge holes are opened on the inner wall of the collection tank 12. The inner wall of the multiple salt discharge holes is provided with a non-woven fabric layer to prevent soil and dirt in the saline-alkali land from entering the collection tank 12.
[0025] The detailed working process of this utility model is as follows:
[0026] First, a deep pit matching the size of the collection tank 12 is pre-dug in the saline-alkali land. The collection tank 12 is then placed in the pit, while the support base 1 is stably placed on the ground. Saltwater then permeates into the collection tank 12 through the non-woven fabric. The submersible pump 13 then pumps the saltwater from the collection tank 12 into the treatment tank 2. The filter plate 6 on the fixing frame 5 effectively traps suspended particles and other impurities in the water, preventing impurities from depositing on the reverse osmosis membrane surface or clogging the water flow channels, ensuring the desalination efficiency of the device and preventing damage to the reverse osmosis membrane. The water treated by the filter plate 6 in the treatment tank 2 is then extracted by the reverse osmosis device 4 for further treatment. The treated water is then fed into the storage tank 3, while the fouling is discharged through the drain end of the reverse osmosis device 4. This process improves the treatment effect, and the treated water in the storage tank 3 can be used for further treatment. Continuous spraying is used to achieve continuous desalination of saline-alkali land. The waste liquid discharged from the sewage outlet is collected and centrally treated. After the device has been used for a long time, the user pulls the pull ring 15, which causes the spring 9 to retract and the limiting block to move out of the limiting groove. Then, the user can use the handle to pull out the fixing frame 5, which is convenient for the user to maintain and replace the filter plate 6 and ensure the filtration efficiency of the filter plate 6. When it is necessary to install the fixing frame 5, the fixing frame 5 is inserted into the treatment box 2. Then the fixing frame 5 will touch the limiting block, which causes the spring 9 to retract and the limiting block to move into the fixing shell 7. When the limiting groove on the fixing frame 5 is aligned with the limiting block, the spring 9 returns to its original position, and the limiting block automatically moves into the limiting groove to achieve the limiting and fixing of the fixing frame 5. This makes the fixing frame 5 easy to install and disassemble, improving the portability of the device.
[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A device for desalinizing saline-alkali soil, characterized in that, include: A support base (1) is provided, on the upper surface of which a treatment tank (2) and a water storage tank (3) are fixedly connected. A treatment assembly is installed on the treatment tank (2). A reverse osmosis device (4) is fixedly connected to the upper surface of the support base (1). The reverse osmosis device (4) is located on the treatment tank (2) and the water storage tank (3). A collection assembly is installed on the treatment tank (2). The treatment assembly includes a fixed frame (5) that runs through the treatment tank (2). A filter plate (6) is installed on the fixed frame (5). The fixed frame (5) has a side... A fixed shell (7) is fixedly connected to the wall. A limiting plate (8) is slidably connected inside the fixed shell (7). Multiple springs (9) are fixedly connected to the inner wall of the fixed shell (7). All of the multiple springs (9) are fixedly connected to the limiting plate (8). A limiting block is fixedly connected to the limiting plate (8). The limiting block slides through the processing box (2). A limiting groove is opened on the side wall of the fixed frame (5). The limiting block and the limiting groove match. A pull rod slides through the fixed shell (7). One end of the pull rod is fixedly connected to the limiting plate (8).
2. The desalination device for saline-alkali land according to claim 1, characterized in that: The collection assembly includes a water supply pipe (10) connected to the processing tank (2), a plurality of support columns (11) are fixedly connected to the lower end face of the support base (1), and a collection tank (12) is fixedly connected among the plurality of support columns (11). A submersible pump (13) is fixedly installed on the inner wall of the collection tank (12). The water supply pipe (10) passes through the collection tank (12) and is installed at the liquid outlet end of the submersible pump (13). A plurality of salt discharge holes are opened on the inner wall of the collection tank (12), and a non-woven fabric layer is provided on the inner wall of the plurality of salt discharge holes.
3. The desalination device for saline-alkali land soil according to claim 1, characterized in that: Both the water storage tank (3) and the treatment tank (2) are connected to a discharge pipe, and the water storage tank (3) is connected to an inlet pipe. Solenoid valves (14) are fixedly installed on the inlet pipe and the two discharge pipes.
4. The desalination device for saline-alkali soil according to claim 1, characterized in that: A pull ring (15) is fixedly connected to the pull rod, and a protective pad is provided on the pull ring (15).
5. A desalination device for saline-alkali land soil according to claim 1, characterized in that: A handle is fixedly connected to the fixed frame (5), and the limiting block is wedge-shaped.
6. The desalination device for saline-alkali soil according to claim 1, characterized in that: Multiple pads are fixedly connected to the support base (1), and the lower end surfaces of the multiple pads are provided with anti-slip textures.
Citation Information
Patent Citations
Saline-alkali soil salt elimination device
CN220307752U