Sulfate radical resistant brine lithium extraction adsorption device

Abstract

The utility model discloses a sulfate radical resistant brine lithium extraction adsorption device, which comprises an adsorption component, a water inlet pipe and a water outlet pipe are respectively arranged at two ends of an adsorption tower, and a flow guide bin is fixedly arranged in the adsorption tower; and a filter assembly. According to the utility model, the upper drainage port and the lower drainage port are used for draining and conveying brine, the brine enters the filtering assembly at the moment, and the adsorption filler in the filtering assembly is ion exchange resin, so that the high selectivity and adsorption capacity on lithium ions can be realized; the positioning filter screen plate and the supporting filter screen plate can support the adsorption filler, remove suspended solids and particles in brine and reduce pollution to the adsorption material, and finally, after lithium ions are captured by the adsorption material, most of other ions such as sulfate ions flow out through the tower body, so that the device is simple in structure, convenient to operate and low in cost. The investment cost is reduced, and meanwhile, a relatively good sulfate radical-resistant brine lithium extraction adsorption function is also realized.

Description

Technical Field

[0001] This utility model relates to the field of resource development and utilization technology, and in particular to a sulfate-resistant brine lithium extraction adsorption device. Background Technology

[0002] Lithium extraction from brine is an important method for developing lithium resources. Its main principle is to extract lithium ions from brine using adsorbents or other separation materials. However, brine usually contains a high concentration of sulfate ions, which places high demands on the corrosion resistance of the adsorbent materials and adsorption devices.

[0003] In current brine lithium extraction processes, traditional adsorption devices mainly rely on adsorption towers to extract lithium. However, this design has several technical bottlenecks. First, the adsorption tower needs to be equipped with distributors and collectors, which not only increases the manufacturing cost of the equipment but also increases the difficulty and economic burden of daily maintenance. Second, this structure is not ideal in filtering suspended solids and particles in the brine, resulting in reduced adsorption efficiency and affecting the purity of lithium extraction. In addition, traditional adsorption towers lack the necessary backwashing device, making it impossible to backwash the adsorption material, which can easily cause blockage of the adsorption material, further reducing adsorption efficiency and equipment operational stability. Utility Model Content

[0004] One objective of this invention is to provide a sulfate-resistant brine lithium extraction adsorption device. This invention addresses the shortcomings of the existing brine lithium extraction process, where traditional adsorption devices rely primarily on adsorption towers for lithium extraction. However, this design suffers from several technical bottlenecks. First, the adsorption tower requires a distributor and collector, increasing manufacturing costs and the difficulty and economic burden of daily maintenance. Second, this structure is not ideal for filtering suspended solids and particles in the brine, leading to reduced adsorption efficiency and affecting the purity of extracted lithium. Furthermore, traditional adsorption towers lack necessary backwashing devices, making it impossible to reverse-wash the adsorption material, which easily causes blockage and further reduces adsorption efficiency and equipment operational stability.

[0005] A sulfate-resistant brine lithium extraction adsorption device according to an embodiment of the present invention includes:

[0006] An adsorption assembly includes an adsorption tower, with an inlet pipe and an outlet pipe at each end of the adsorption tower. A flow guide chamber is fixedly installed inside the adsorption tower. An inlet is opened at one end of the flow guide chamber near the inlet pipe, and an upper flow outlet and a lower flow outlet are opened at the upper and lower ends of the flow guide chamber, respectively.

[0007] A filter assembly is installed above the upper and lower inlet ports of the flow guide chamber in the adsorption assembly to remove suspended solids and particles from the brine. The filter assembly includes a filter box.

[0008] A backwashing mechanism is installed on the other side of the adsorption tower in the adsorption assembly to achieve reverse rinsing of the adsorption material. The backwashing mechanism includes a backwashing nozzle, which is installed inside the flow guide chamber and located below the filter assembly. A diversion pipe is fixedly installed at one end of the backwashing nozzle, a backwashing pipe is fixedly installed at one end of the diversion pipe, a backwashing pump is fixedly installed at one end of the backwashing pipe, and a backwashing liquid storage tank is connected to one side of the backwashing pump.

[0009] Preferably, an observation window is fixedly provided on the other side of the adsorption tower, and both the adsorption tower and the flow guiding chamber are made of zirconium alloy.

[0010] Preferably, both the upper and lower drain ports are located below the filter assembly.

[0011] Preferably, a sealing door is installed on one side of the adsorption tower to facilitate the disassembly and assembly of the filter components, and the sealing door is fixed to the adsorption tower by bolts.

[0012] Preferably, a handle is fixedly provided on one side of the filter box, and the filter box is slidably disposed inside the flow guide chamber.

[0013] Preferably, a supporting filter plate is engaged at the lower end of the filter box, and a positioning filter plate is fixed to the top of the filter box by bolts. Adsorption filler is provided between the supporting filter plate and the positioning filter plate.

[0014] Preferably, sampling port plugs are fixedly provided at the top and the lower end of one side of the adsorption tower.

[0015] Preferably, the adsorption filler is an ion exchange resin.

[0016] The beneficial effects of this utility model are:

[0017] This invention effectively avoids the problems of maintenance difficulty and economic burden through its designed adsorption components. During use, the adsorption tower and flow guide chamber are made of zirconium alloy, possessing excellent corrosion resistance and high-temperature resistance. When brine enters the adsorption tower, it flows into the interior through the inlet of the flow guide chamber, and is guided and transported by the upper and lower inlets. The brine then enters the filter assembly, where the adsorption packing material is ion exchange resin, exhibiting high selectivity and adsorption capacity for lithium ions. The positioning and supporting filter plates support the adsorption packing material while removing suspended solids and particles from the brine, reducing contamination of the adsorption material. Finally, after lithium ions are captured by the adsorption material, other ions, such as sulfate ions, mostly flow out through the tower. Therefore, this device has a simple structure, is easy to operate, reduces investment costs, and also possesses good lithium extraction adsorption capabilities from sulfate-resistant brine.

[0018] This utility model features a backwashing mechanism installed at the bottom of the corresponding filter mechanism. A backwashing pump transports water from the backwashing liquid storage tank to the backwashing pipeline, where the water is diverted by a diversion pipe. Finally, a backwashing nozzle sprays water down below to clean the filter, thereby backwashing the adsorbent material and helping to remove blockages and residual impurities. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a three-dimensional structural diagram of one side of a sulfate-resistant brine lithium extraction adsorption device proposed in this utility model.

[0021] Figure 2 This is a three-dimensional structural schematic diagram of another sulfate-resistant brine lithium extraction adsorption device proposed in this utility model.

[0022] Figure 3 This is a schematic diagram of the internal structure of a sulfate-resistant brine lithium extraction adsorption device proposed in this utility model.

[0023] Figure 4 This is a schematic diagram of the internal structure of the filter component of a sulfate-resistant brine lithium extraction adsorption device proposed in this utility model.

[0024] In the diagram: 1. Adsorption assembly; 101. Adsorption tower; 102. Inlet pipe; 103. Outlet pipe; 104. Observation window; 105. Flow guide chamber; 106. Inlet; 107. Upper drain port; 108. Sealing door; 109. Lower drain port; 2. Filter assembly; 201. Filter box; 202. Handle; 203. Support filter plate; 204. Adsorption packing; 205. Positioning filter plate; 3. Sampling port plug; 4. Backwashing mechanism; 401. Backwash nozzle; 402. Diverter pipe; 403. Backwash pipeline; 404. Backwash pump; 405. Backwash liquid storage tank. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0026] refer to Figure 1-4 A sulfate-resistant brine lithium extraction adsorption device, comprising:

[0027] The adsorption assembly 1 includes an adsorption tower 101. The adsorption tower 101 has an inlet pipe 102 and an outlet pipe 103 at its two ends. A flow guide chamber 105 is fixedly installed inside the adsorption tower 101. An inlet 106 is opened at one end of the flow guide chamber 105 near the inlet pipe 102. An upper flow guide 107 and a lower flow guide 109 are opened at the upper and lower ends of the flow guide chamber 105, respectively. When brine enters the interior of the adsorption tower, it enters the interior through the inlet of the flow guide chamber. The brine is guided and transported by the upper and lower flow guides. Finally, after lithium ions are captured by the adsorption material, most of the other ions, such as sulfate ions, flow out through the tower body.

[0028] The filter assembly 2 is installed above the upper inlet 107 and lower inlet 109 of the flow guide chamber 105 in the adsorption assembly 1. It is used to remove suspended solids and particles in the brine. The filter assembly 2 includes a filter box 201. A support filter plate 203 is engaged at the lower end of the filter box 201. A positioning filter plate 205 is fixed to the top of the filter box 201 by bolts. An adsorption filler 204 is provided between the support filter plate 203 and the positioning filter plate 205. The positioning filter plate and the support filter plate can support the adsorption filler while removing suspended solids and particles in the brine, reducing the contamination of the adsorption material.

[0029] The backwashing mechanism 4 is installed on the other side of the adsorption tower 101 in the adsorption assembly 1 to achieve reverse flushing of the adsorption material. The backwashing mechanism 4 includes a backwashing nozzle 401, which is installed inside the flow guide chamber 105 and located below the filter assembly 2. A diversion pipe 402 is fixedly installed at one end of the backwashing nozzle 401, and a backwashing pipe 403 is fixedly installed at one end of the diversion pipe 402. A backwashing pump 404 is fixedly installed at one end of the backwashing pipe 403. A backwashing liquid storage tank 405 is connected to one side of the backwashing pump 404. The backwashing pump is used to transport water from the backwashing liquid storage tank to the backwashing pipe, and the water is diverted by the diversion pipe. Finally, the backwashing nozzle is used to spray and clean the area below it, thereby reverse flushing the adsorption material to help remove blockages and residual impurities.

[0030] Example 1: An observation window 104 is fixedly installed on the other side of the adsorption tower 101 to facilitate observation of the internal brine flow. Both the adsorption tower 101 and the flow guiding chamber 105 are made of zirconium alloy, which has good corrosion resistance and high temperature resistance. The upper flow port 107 and the lower flow port 109 are both located below the filter assembly 2 to facilitate the adsorption and collection of lithium ions. A sealing door 108 is installed on one side of the adsorption tower 101 to facilitate the disassembly and assembly of the filter assembly 2. The sealing door 108 is fixed to the adsorption tower 101 by bolts to facilitate the disassembly and assembly of the filter assembly.

[0031] Example 2: A handle 202 is fixedly installed on one side of the filter box 201. The filter box 201 is slidably installed inside the flow guide chamber 105. The adsorption packing 204 is an ion exchange resin, which has high selectivity and adsorption capacity for lithium ions. Sampling port plugs 3 are fixedly installed on the top and the lower end of one side of the adsorption tower 101 for sampling and analyzing the lithium ion concentration in the brine and monitoring the adsorption effect.

[0032] Working Principle: First, brine enters the adsorption tower 101 through the inlet pipe 102. Inside the guide chamber 105, the brine enters through the inlet 106, and is then guided and transported through the upper guide port 107 and the lower guide port 109. During this process, the filter assembly 2 (located above the guide chamber 105) filters the brine, removing suspended solids and particles to prevent contamination of the adsorption material. The filter assembly 2 includes a filter box 201, a supporting filter plate 203, a positioning filter plate 205, and adsorption packing 204. The adsorption packing 204 is an ion exchange resin, which has high selectivity and adsorption capacity for lithium ions. After filtration, lithium ions are captured by the adsorption material, while most sulfate ions flow out through the tower. During the adsorption process, the observation window 104 facilitates observation of the internal brine flow. Furthermore, to ensure the normal operation of the adsorption process, when a certain amount of impurities and blockages accumulate in the adsorbent material, the backwashing mechanism 4 comes into play. The backwashing pump 404 transports water from the backwashing liquid storage tank 405 to the backwashing pipeline 403, and the water is diverted through the diversion pipe 402. Finally, the backwashing nozzle 401 sprays the adsorbent material in reverse to help remove blockages and residual impurities. In addition, the adsorption tower 101 and the guide chamber 105 are made of zirconium alloy, which has good corrosion resistance and high temperature resistance. The sampling port plug 3 is set at the top and lower side of the adsorption tower 101 for sampling and analyzing the lithium ion concentration in the brine and monitoring the adsorption effect. The sealing door 108 facilitates the disassembly and maintenance of the filter assembly 2. Through the above working principle, the device realizes an efficient and stable brine lithium extraction process.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A sulfate-resistant brine lithium extraction adsorption device, characterized in that, include: The adsorption assembly (1) includes an adsorption tower (101), with an inlet pipe (102) and an outlet pipe (103) respectively at both ends of the adsorption tower (101). A flow guide chamber (105) is fixedly installed inside the adsorption tower (101). An inlet (106) is opened at one end of the flow guide chamber (105) near the inlet pipe (102). An upper flow guide (107) and a lower flow guide (109) are respectively opened at the upper and lower ends inside the flow guide chamber (105). The filter assembly (2) is installed above the upper inlet (107) and lower inlet (109) of the flow guide chamber (105) in the adsorption assembly (1) to remove suspended solids and particles in the brine. The filter assembly (2) includes a filter box (201). A backwashing mechanism (4) is installed on the other side of the adsorption tower (101) in the adsorption assembly (1) to achieve reverse rinsing of the adsorption material. The backwashing mechanism (4) includes a backwashing nozzle (401), which is installed inside the flow guide chamber (105) and located below the filter assembly (2). A diversion pipe (402) is fixedly provided at one end of the backwashing nozzle (401), and a backwashing pipe (403) is fixedly provided at one end of the diversion pipe (402). A backwashing pump (404) is fixedly provided at one end of the backwashing pipe (403), and a backwashing liquid storage tank (405) is connected to one side of the backwashing pump (404).

2. The sulfate-resistant brine lithium extraction adsorption device of claim 1, wherein, An observation window (104) is fixedly provided on the other side of the adsorption tower (101). Both the adsorption tower (101) and the flow guiding chamber (105) are made of zirconium alloy.

3. The sulfate-resistant brine lithium extraction adsorption device of claim 1, wherein, The upper drain (107) and lower drain (109) are both located below the filter assembly (2).

4. The sulfate-resistant brine lithium extraction adsorption device of claim 1, wherein, The adsorption tower (101) is equipped with a sealing door (108) on one side for easy disassembly and assembly of the filter assembly (2). The sealing door (108) is fixed to the adsorption tower (101) by bolts.

5. The sulfate-resistant brine lithium extraction adsorption device of claim 1, wherein, A handle (202) is fixedly provided on one side of the filter box (201), and the filter box (201) is slidably disposed inside the flow guide chamber (105).

6. The sulfate-resistant brine lithium extraction adsorption device of claim 1, wherein, The filter box (201) is fitted with a support filter plate (203) at the lower end of its interior, and a positioning filter plate (205) is fixed to the top of the filter box (201) by bolts. An adsorption filler (204) is provided between the support filter plate (203) and the positioning filter plate (205).

7. The sulfate-resistant brine lithium extraction adsorption device of claim 1, wherein, Sampling port plugs (3) are fixedly installed at the top and the lower end of one side of the adsorption tower (101).

8. A sulfate-resistant brine lithium extraction adsorption device according to claim 6, characterized in that, The adsorption filler (204) is an ion exchange resin.

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