An acid adsorption device

Abstract

This utility model discloses an acid adsorption device, including a base, a pair of support frames fixedly connected to the top of the base, an adsorption chamber placed on the top of the support frames, an adsorption membrane disposed on the inner wall of the bottom end of the adsorption chamber, and a recovery tank disposed directly below the adsorption chamber. A fixing frame is fixedly connected to the top of the base, an inlet is opened on the top of the fixing frame, a liquid guiding chamber is disposed directly below the inlet, a connecting block is fixedly connected between the liquid guiding chamber and the side wall of the fixing frame, and several diversion pipes are opened at the bottom of the liquid guiding chamber. A filter plate is installed on the top of the liquid guiding chamber, and a filter screen is installed on the filter plate. Compared with traditional acid-base neutralization methods, this utility model does not require the consumption of a large amount of alkali, has low cost, is energy-saving and environmentally friendly, can remove suspended solids and impurity particles mixed in acid solutions, and related components are detachable for regular cleaning and replacement after long-term use.

Description

Technical Field

[0001] This utility model belongs to the field of acid treatment technology, and in particular relates to an acid adsorption device. Background Technology

[0002] In the nickel sulfate industry, nickel sulfate is typically produced through hydrometallurgy (acid leaching). This process requires leaching nickel ore (such as sulfide or oxide ores) with sulfuric acid to generate an acidic solution containing nickel sulfate. During this process, the leachate may contain excess sulfuric acid (low pH). Therefore, the acidic solution generated during production (such as waste acid or leachate) needs to be treated to achieve acid recovery or waste acid purification, thereby reducing environmental pollution.

[0003] Currently, there are some acid treatment devices on the market, such as an acid neutralization tank with publication number CN219279614U disclosed on the Chinese Patent Network. This device can neutralize acid, but it has some defects and shortcomings that need to be improved: (1) Although some existing acid treatment devices can neutralize acid through neutralization, the process often requires a large amount of alkali, which is costly and not conducive to energy conservation and environmental protection; (2) Some existing acid treatment devices lack effective pretreatment measures, making it difficult to remove suspended solids and impurity particles mixed in the acid, thus affecting the subsequent treatment effect and efficiency; (3) Most existing acid treatment devices have complex structures, are cumbersome to operate, and have difficult-to-disassemble related parts, making it inconvenient to clean and replace them regularly after long-term use. Therefore, in view of the above problems, the acid adsorption device provided by this utility model is of great significance. Utility Model Content

[0004] This invention provides an acid adsorption device that uses an adsorption membrane to adsorb and treat the acid solution generated during the production of nickel sulfate, thereby achieving acid recycling or waste acid purification and reducing environmental pollution. Compared with traditional acid-base neutralization methods, it does not require the consumption of large amounts of alkali, effectively reducing costs and promoting energy conservation and environmental protection. The filter screen on the filter plate can pre-treat the acid solution before adsorption to remove suspended solids and impurities, thus preventing impurities from entering the acid solution and affecting the subsequent treatment effect and efficiency. The filter plate can be removed from the top of the liquid guiding chamber by pulling out the insert block, allowing for regular cleaning of suspended solids and impurities adhering to the filter screen. At the same time, the adsorption chamber can be removed from the support frame by lifting it upwards, allowing for regular replacement of the adsorption membrane. In summary, this invention solves the problems in the background technology.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model discloses an acid adsorption device, comprising a base, a pair of support frames fixedly connected to the top of the base, an adsorption chamber placed on the top of the support frames, the bottom of the adsorption chamber being open, an adsorption membrane being provided on the inner wall of its bottom end, and a recovery tank being provided directly below the adsorption chamber, the recovery tank being placed on the base, a fixing frame fixedly connected to the top of the base, a liquid inlet being provided on the top of the fixing frame, a sealing plug being installed on the top of the liquid inlet, a liquid guiding chamber being provided directly below the liquid inlet, a connecting block being fixedly connected between the liquid guiding chamber and the side wall of the fixing frame, and several diversion pipes being provided at the bottom of the liquid guiding chamber, a filter plate being installed on the top of the liquid guiding chamber, and a filter screen being installed on the filter plate.

[0007] Furthermore, the adsorption chamber, the recovery tank, and the liquid guiding chamber are all rectangular. The length and width of the adsorption chamber are smaller than the length and width of the recovery tank, respectively, and the length and width of the adsorption chamber are larger than the length and width of the liquid guiding chamber, respectively.

[0008] Furthermore, the top opening of the diversion pipe is connected to the liquid guiding chamber, and the diversion pipes are distributed in a linear array along the length and width directions of the bottom surface of the liquid guiding chamber.

[0009] Furthermore, the top edge of the liquid guiding chamber protrudes outward, and slots are provided at the four corners of the top surface of the liquid guiding chamber. The filter screen is rectangular, and its length and width correspond to the length and width of the inner wall of the liquid guiding chamber, respectively. Inserts are fixedly connected to the four corners of the bottom of the filter plate. The cross-section of the inserts and the slots are both rectangular, and their diameters are correspondingly equal. The center of each insert corresponds one-to-one with the center of each slot.

[0010] Furthermore, the top edge of the adsorption chamber protrudes to both sides and has a pair of positioning holes. The support frame is L-shaped, and a pair of positioning posts are fixedly connected to its top. The diameter of the positioning posts is equal to the diameter of the positioning holes, and the center of each positioning post corresponds one-to-one with the center of each positioning hole.

[0011] Furthermore, a reinforcing block is fixedly connected to the lower top surface of the support frame. The reinforcing block is triangular in shape, and one side of it is fixedly connected to the inner side wall of the support frame.

[0012] Furthermore, a pair of slots are provided on the bottom surface of the recycling tank, and a pair of blocks are fixedly connected to the base. The width of the blocks corresponds to the width of the slots, and the center of each block corresponds to the center of each slot.

[0013] The present invention has the following advantages over the prior art:

[0014] (1) When the acid adsorption device of this utility model is used, the acid liquid generated in the nickel sulfate production process can be adsorbed through the adsorption membrane to realize the recycling of acid or the purification of waste acid, thereby reducing environmental pollution. Compared with the traditional acid-base neutralization method, it does not require a large amount of alkali, which not only effectively reduces the cost, but also helps to save energy and protect the environment.

[0015] (2) When using the acid adsorption device of this utility model, the acid solution can be pretreated before acid adsorption by the filter screen on the filter plate, so as to remove the suspended matter and impurity particles mixed in the acid solution, thereby avoiding impurities from mixing into the acid solution and affecting the subsequent treatment effect and efficiency.

[0016] (3) When using the acid adsorption device of this utility model, the filter plate can be removed from the top of the liquid guiding chamber by pulling out the plug, so as to clean the suspended matter and impurity particles adhering to the filter screen regularly. At the same time, the adsorption chamber can be removed from the support frame by lifting it up, so as to replace the adsorption membrane regularly.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of an acid adsorption device according to the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the base and the fixing frame in this utility model;

[0021] Figure 3 This is a schematic diagram of the sealing plug in this utility model;

[0022] Figure 4 This is a schematic diagram of the top and bottom structures of the filter plate in this utility model;

[0023] Figure 5 This is a schematic diagram of the top and bottom structures of the adsorption chamber in this utility model;

[0024] Figure 6 This is a schematic diagram of the recycling tank in this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Base; 2. Support frame; 3. Adsorption chamber; 4. Adsorption membrane; 5. Recovery tank; 6. Fixing frame; 7. Liquid inlet; 8. Sealing plug; 9. Liquid guide chamber; 10. Connecting block; 11. Diverter pipe; 12. Filter plate; 13. Filter screen; 14. Slot; 15. Insert block; 16. Positioning hole; 17. Positioning post; 18. Reinforcing block; 19. Slot; 20. Locking block. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] In the description of this utility model, it should be understood that the terms "relative", "one end", "inner", "lateral", "end", "both ends", "both sides", "front", "one end face", "the other end face", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements 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 of this utility model.

[0029] Please see Figure 1-6As shown, this utility model discloses an acid adsorption device, comprising a base 1, a pair of support frames 2 fixedly connected to the top of the base 1, an adsorption chamber 3 placed on the top of the support frames 2, the bottom of the adsorption chamber 3 being open, an adsorption membrane 4 being provided on the inner wall of its bottom end, and a recovery tank 5 being provided directly below the adsorption chamber 3, the recovery tank 5 being placed on the base 1, a fixing frame 6 fixedly connected to the top of the base 1, a liquid inlet 7 being provided on the top of the fixing frame 6, a sealing plug 8 being installed on the top of the liquid inlet 7, and a liquid guiding chamber 9 being provided directly below the liquid inlet 7, a connecting block 10 being fixedly connected between the liquid guiding chamber 9 and the side wall of the fixing frame 6, and several diversion pipes 11 being provided at the bottom of the liquid guiding chamber 9, a filter plate 12 being installed on the top of the liquid guiding chamber 9, and a filter plate 12 being installed on the filter plate 12. A filter screen 13 is provided, and acid solution (such as waste acid or leaching solution) generated during the nickel sulfate production process can be introduced into the guide chamber 9 through the inlet 7. Before entering the guide chamber 9, the acid solution will first come into contact with the filter screen 13 on the filter plate 12. At this time, the acid solution can be filtered by the filter screen 13 to remove suspended solids and impurity particles mixed in the acid solution. After filtration, the acid solution enters the guide chamber 9 and flows down through the diversion pipe 11 and enters the adsorption chamber 3. The adsorption membrane 4 at the bottom of the adsorption chamber 3 can be a nanofiltration (NF) membrane and is fixed by adhesives or other means. When the acid solution enters the adsorption chamber 3 and comes into contact with the adsorption membrane 4, the adsorption membrane 4 can efficiently separate H from the nickel sulfate solution through the synergistic effect of charge repulsion, pore size sieving and dissolution diffusion. + with Ni 2 + / SO42- is used to realize the recycling or purification of acid, thereby reducing environmental pollution. Compared with the traditional acid-base neutralization method, it does not require the consumption of a large amount of alkali, which not only effectively reduces costs, but also helps to save energy and protect the environment. The acid liquid after acid adsorption treatment can be collected through adsorption membrane 4 into recovery tank 5. The acid liquid can be recovered through recovery tank 5 for subsequent unified treatment.

[0030] The adsorption chamber 3, the recovery tank 5, and the liquid guiding chamber 9 are all rectangular. The length and width of the adsorption chamber 3 are smaller than the length and width of the recovery tank 5, and the length and width of the adsorption chamber 3 are larger than the length and width of the liquid guiding chamber 9. This ensures that the acid can accurately enter the adsorption chamber 3 and the recovery tank 5, so as to prevent the acid from spilling out and causing pollution and damage to related components and the surrounding environment.

[0031] The top end of the diversion pipe 11 is connected to the liquid guiding chamber 9, and the diversion pipes 11 are arranged in a linear array along the length and width of the bottom surface of the liquid guiding chamber 9. When the acid enters the liquid guiding chamber 9, the acid can be diverted through multiple diversion pipes 11 so that it can be evenly introduced into the adsorption chamber 3. This ensures that the acid can fully contact the adsorption membrane 4, so as to avoid the acid from concentrating in a local position of the adsorption membrane 4 and affecting the acid adsorption effect.

[0032] The top edge of the liquid guiding chamber 9 protrudes outward, and slots 14 are provided at the four corners of the top surface of the liquid guiding chamber 9. The filter screen 13 is rectangular, and its length and width correspond to the length and width of the inner wall of the liquid guiding chamber 9, respectively. Insert blocks 15 are fixedly connected to the four corners of the bottom of the filter plate 12. The cross-section of the insert blocks 15 and the slots 14 are both rectangular, and their diameters are correspondingly equal. The center of each insert block 15 corresponds to the center of each slot 14. When the filter plate 12 is placed on top of the liquid guiding chamber 9, each insert block 15 can be aligned and inserted into the corresponding slot 14. At this time, the filter plate 12 can be positioned by the mutual cooperation between the insert blocks 15 and the slots 14 to ensure that the filter screen 13 completely covers the top opening of the liquid guiding chamber 9. After the filter screen 13 has been used for a long time, the filter plate 12 can be removed from the top of the liquid guiding chamber 9 by pulling out the insert blocks 15 so that the suspended matter and impurity particles adhering to the filter screen 13 can be cleaned regularly.

[0033] The top edge of the adsorption chamber 3 protrudes to both sides and has a pair of positioning holes 16. The support frame 2 is L-shaped and has a pair of positioning posts 17 fixedly connected to its top. The diameter of the positioning posts 17 is equal to the diameter of the positioning holes 16, and the center of each positioning post 17 corresponds to the center of each positioning hole 16. When the adsorption chamber 3 is placed on the top of the support frame 2, each positioning post 17 can be aligned and pass through the corresponding positioning hole 16. At this time, the adsorption chamber 3 can be positioned by the cooperation between the positioning posts 17 and the positioning holes 16 to ensure that the adsorption chamber 3 is located directly below the liquid guiding chamber 9 and directly above the recovery tank 5. After the adsorption membrane 4 has been used for a long time, it can be removed from the support frame 2 by lifting the adsorption chamber 3 upwards so that the adsorption membrane 4 can be replaced periodically.

[0034] Among them, a reinforcing block 18 is fixedly connected to the lower top surface of the support frame 2. The reinforcing block 18 is triangular in shape, and one side of it is fixedly connected to the inner side wall of the support frame 2. The reinforcing block 18 can support and reinforce the support frame 2 in order to improve the structural strength of the support frame 2, thereby preventing it from bending and deforming after being subjected to force for a long time, which would cause the position of the adsorption chamber 3 to shift and tilt.

[0035] The bottom surface of the recycling tank 5 is provided with a pair of slots 19, and a pair of blocks 20 are fixedly connected to the base 1. The width of the blocks 20 is equal to the width of the slots 19, and the center of each block 20 corresponds to the center of each slot 19. When the recycling tank 5 is placed on the base 1, each block 20 can be aligned and fitted into the corresponding slot 19. At this time, the recycling tank 5 can be positioned by the cooperation between the blocks 20 and the slots 19 to prevent the position of the recycling tank 5 from shifting and affecting the recovery of acid. The recycling tank 5 can be removed from the base 1 by sliding along the blocks 20 so that the acid in the recycling tank 5 can be further processed.

[0036] All standard parts used in the application documents can be purchased from the market. All components in this application documents can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art.

[0037] The working principle of this utility model is as follows:

[0038] In use, this invention allows acid (such as waste acid or leaching solution) generated during nickel sulfate production to be introduced into the guiding chamber 9 through the inlet 7. Before entering the guiding chamber 9, the acid first comes into contact with the filter screen 13 on the filter plate 12. At this time, the acid is filtered through the filter screen 13 to remove suspended solids and impurities. After filtration, the acid enters the guiding chamber 9 and is then divided by multiple diversion pipes 11. It flows down the diversion pipes 11 and enters the adsorption chamber 3. When the acid enters the adsorption chamber 3 and comes into contact with the adsorption membrane 4, the adsorption membrane 4 efficiently separates H+ and Ni+ from the nickel sulfate solution through the synergistic effect of charge repulsion, pore size sieving, and dissolution diffusion. 2+ / SO42-, to achieve acid recycling or waste acid purification, thereby reducing environmental pollution. Compared with traditional acid-base neutralization methods, it does not require the consumption of a large amount of alkali, which not only effectively reduces costs, but also helps to save energy and protect the environment. After acid adsorption treatment, the acid liquid can be collected in the recovery tank 5 through the adsorption membrane 4. The acid liquid can be recovered through the recovery tank 5 for subsequent unified treatment. When the filter screen 13 has been used for a long time, the filter plate 12 can be removed from the top of the liquid guiding chamber 9 by pulling out the plug 15, so as to regularly clean the suspended matter and impurity particles adhering to the filter screen 13. When the adsorption membrane 4 has been used for a long time, it can be removed from the support frame 2 by lifting the adsorption chamber 3, so as to regularly replace the adsorption membrane 4.

[0039] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model 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 this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An acid adsorption device, characterized in that, The device includes a base, a pair of support frames fixedly connected to the top of the base, an adsorption chamber placed on the top of the support frames, an open bottom for the adsorption chamber with an adsorption membrane on its inner bottom wall, a recovery tank placed directly below the adsorption chamber, the recovery tank placed on the base, a fixing frame fixedly connected to the top of the base, a liquid inlet on the top of the fixing frame with a sealing plug installed on the top of the liquid inlet, a liquid guiding chamber directly below the liquid inlet, a connecting block fixedly connected between the liquid guiding chamber and the side wall of the fixing frame, several diversion pipes at the bottom of the liquid guiding chamber, a filter plate with a filter screen installed on the top of the liquid guiding chamber.

2. The acid adsorption device according to claim 1, characterized in that, The adsorption chamber, recovery tank, and liquid guiding chamber are all rectangular. The length and width of the adsorption chamber are smaller than the length and width of the recovery tank, and the length and width of the adsorption chamber are larger than the length and width of the liquid guiding chamber.

3. The acid adsorption device according to claim 1, characterized in that, The top opening of the diversion pipe is connected to the liquid guiding chamber, and the diversion pipes are arranged in a linear array along the length and width of the bottom surface of the liquid guiding chamber.

4. The acid adsorption device according to claim 1, characterized in that, The top edge of the liquid guiding chamber protrudes outward, and slots are provided at the four corners of the top surface of the liquid guiding chamber. The filter screen is rectangular, and its length and width correspond to the length and width of the inner wall of the liquid guiding chamber, respectively. Inserts are fixedly connected to the four corners of the bottom of the filter plate. The cross-section of the inserts and the slots are rectangular, and their diameters are equal. The center of each insert corresponds one-to-one with the center of each slot.

5. The acid adsorption device according to claim 1, characterized in that, The top edge of the adsorption chamber protrudes to both sides and has a pair of positioning holes. The support frame is L-shaped and has a pair of positioning posts fixedly connected to its top. The diameter of the positioning posts is equal to the diameter of the positioning holes, and the center of each positioning post corresponds one-to-one with the center of each positioning hole.

6. The acid adsorption device according to claim 1, characterized in that, A reinforcing block is fixedly connected to the lower top surface of the support frame. The reinforcing block is triangular in shape, and one side of it is fixedly connected to the inner side wall of the support frame.

7. The acid adsorption device according to claim 1, characterized in that, The bottom surface of the recycling tank is provided with a pair of slots, and a pair of blocks are fixedly connected to the base. The width of the blocks corresponds to the width of the slots, and the center of each block corresponds to the center of each slot.

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