A sulfuric acid purification and recovery device

Abstract

The utility model relates to a kind of sulfuric acid purification recovery device, including sulfuric acid pump, filter, acid tank, pure water tank and resin tank, the sulfuric acid pump is equipped with raw liquid import, the filter and the sulfuric acid pump are connected by pipeline, the acid tank and the resin tank are connected by pipeline, the acid tank and the pure water tank are equipped with air inlet on, the pure water tank is equipped with water inlet, the resin tank and the pure water tank are connected by pipeline, the resin tank is equipped with waste water outlet and recovery outlet, resin for adsorbing metal ion is equipped in the resin tank. The utility model is designed, without adding chemical reagent, effectively avoid resource waste and reduce cost.

Description

Technical Field

[0001] This utility model relates to the technical field of wastewater treatment devices, and in particular to a sulfuric acid purification and recovery device. Background Technology

[0002] An anodizing production line refers to industrial equipment used for surface treatment of aluminum products. It uses an electrolytic process to generate an aluminum oxide protective layer on the surface of aluminum parts to improve corrosion resistance and hardness. It is mainly used in the manufacturing of kitchenware, home appliances, furniture, and other daily necessities. Anodizing production lines primarily use 15% sulfuric acid. During production, the aluminum ion concentration in the sulfuric acid continuously increases. When the aluminum ion concentration reaches above 15 g / L, the sulfuric acid becomes unusable and needs to be replaced. Current technologies generally employ methods such as alkali neutralization and flocculation precipitation to purify and recover the sulfuric acid.

[0003] However, the above methods consume large amounts of chemicals and generate significant amounts of industrial sludge, resulting in resource waste and increased costs for businesses. Therefore, there is a need to develop a newer, more technologically advanced, and structurally simple method that does not consume large quantities of chemicals to address these problems. Utility Model Content

[0004] The purpose of this invention is to provide a sulfuric acid purification and recovery device to solve the problems in the above-mentioned background technology, such as the need to consume a large amount of chemical reagents and generate a large amount of industrial sludge during the purification and recovery process.

[0005] This utility model provides the following technical solution: a sulfuric acid purification and recovery device, comprising a sulfuric acid pump, a filter, an acid tank, a pure water tank, and a resin tank. The sulfuric acid pump is provided with a raw liquid inlet. The filter and the sulfuric acid pump are connected by a pipeline. The acid tank and the resin tank are connected by a pipeline. Both the acid tank and the pure water tank are provided with air inlets. The pure water tank is provided with a water inlet. The resin tank and the pure water tank are connected by a pipeline. The resin tank is provided with a wastewater outlet and a recovery outlet. The resin tank contains resin for adsorbing metal ions.

[0006] Preferably, the filter is a two-stage filter element.

[0007] Preferably, the sulfuric acid pump is connected to the external anodizing tank via the raw material inlet.

[0008] Preferably, the acid tank and the pure water tank are connected to a compressed air source through the air inlet, and the pure water tank is connected to a pure water source through the water inlet.

[0009] Preferably, the resin tank is connected to the wastewater pool via the wastewater outlet, and the resin tank is connected to the external anodizing tank via the recycling outlet.

[0010] Preferably, an intake pressure regulating valve for adjusting the intake air pressure is provided on the air inlet.

[0011] Preferably, the acid tank and / or the pure water tank are provided with a liquid level sensor for monitoring the liquid level in the acid tank and / or the pure water tank.

[0012] Preferably, the acid tank and / or the pure water tank are provided with a tank pressure regulating valve for adjusting the pressure of the acid tank and / or the pure water tank and a flow observation window for observing the liquid flow rate in the acid tank and / or the pure water tank.

[0013] Preferably, the sulfuric acid pump is also equipped with an electrical control box, which is connected to the sulfuric acid pump, the inlet pressure regulating valve, and the liquid level sensor.

[0014] Preferably, the electrical control box is equipped with a control panel and a running indicator light.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model discloses a sulfuric acid purification and recovery device, comprising a sulfuric acid pump, a filter, an acid tank, a pure water tank, and a resin tank. The sulfuric acid pump has a raw liquid inlet. The filter and the sulfuric acid pump are connected by a pipeline. The acid tank and the resin tank are connected by a pipeline. Both the acid tank and the pure water tank have air inlets, and the pure water tank has a water inlet. The resin tank and the pure water tank are connected by a pipeline. The resin tank has a wastewater outlet and a recovery outlet. The resin tank contains resin for adsorbing metal ions. The sulfuric acid pump transfers the raw liquid from the raw liquid inlet to the acid tank. During the transfer to the acid tank, suspended solids are filtered out by the filter. Compressed gas is transferred to the acid tank through the air inlet, pushing the raw liquid in the acid tank into the resin tank. The resin in the resin tank adsorbs the metal ions in the raw liquid. The waste liquid is discharged through the wastewater outlet. The pure water tank is fed into the pure water tank through the water inlet. The pure water tank transfers pure water to the resin tank, replacing the raw liquid in the resin tank that has adsorbed the metal ions. The resin tank discharges the raw liquid with adsorbed metal ions through the recovery outlet for recovery or continued use. No chemical reagents need to be added during this process, effectively avoiding resource waste and reducing costs.

[0016] 2. The sulfuric acid purification and recovery device of this utility model uses a two-stage filter element. The two-stage filter element consists of a coarse filter element and a fine filter element. By setting up the two-stage filter element, the filtration effect of suspended solids in the raw solution can be improved.

[0017] 3. In this utility model's sulfuric acid purification and recovery device, the sulfuric acid pump is connected to the external anodizing tank via the raw liquid inlet. The acid tank and pure water tank are connected to a compressed air source via an air inlet, and the pure water tank is connected to a pure water source via a water inlet. The resin tank is connected to a wastewater pool via a wastewater outlet, and to the external anodizing tank via a recovery outlet. The raw liquid from the anodizing tank can be transferred to the acid tank via the raw liquid inlet and the sulfuric acid pump; compressed air enters the acid tank and pure water tank via the air inlet, and the gas input controls the liquid flow in the acid tank and pure water tank; a water source enters the pure water tank via the water inlet; the waste liquid in the resin tank can be discharged to the wastewater pool via the wastewater outlet and discharged into the external anodizing tank via the recovery outlet for continued use.

[0018] 4. The sulfuric acid purification and recovery device of this utility model is equipped with an intake pressure regulating valve at the air inlet for adjusting the intake air pressure. The intake pressure regulating valve can control the dynamic pressure balance during air intake.

[0019] 5. The sulfuric acid purification and recovery device of this utility model is equipped with a liquid level sensor on the acid tank and / or pure water tank for monitoring the liquid level inside the acid tank and / or pure water tank. The liquid level sensor facilitates the monitoring of the liquid level status inside the acid tank and / or pure water tank by the operator.

[0020] 6. The sulfuric acid purification and recovery device of this utility model is equipped with a tank pressure regulating valve for adjusting the pressure of the acid tank and / or pure water tank, and a flow observation window for observing the liquid flow rate in the acid tank and / or pure water tank. The tank pressure regulating valve facilitates the adjustment of the pressure in the acid tank and / or pure water tank, and the flow observation window allows the operator to observe the liquid flow rate in the acid tank and / or pure water tank in real time.

[0021] 7. The sulfuric acid purification and recovery device of this utility model is further equipped with an electrical control box on the sulfuric acid pump. The electrical control box is connected to the sulfuric acid pump, the inlet pressure regulating valve, and the liquid level sensor. The electrical control box facilitates the control of the operation of the sulfuric acid pump, the inlet pressure regulating valve, and the liquid level sensor.

[0022] 8. The sulfuric acid purification and recovery device of this utility model is equipped with a control panel and operation indicator lights on the electrical control box. The control panel is used to control the operation of the sulfuric acid pump, the inlet pressure regulating valve, and the liquid level sensor. The operation indicator lights emit different colors of light to reflect the working status of the purification and recovery device. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional schematic diagram of the sulfuric acid purification and recovery device of this utility model; Figure 2 This is a left view of the sulfuric acid purification and recovery device of this utility model; Figure 3 This is a rear view of the sulfuric acid purification and recovery device of this utility model; Figure 4 This is a front view of the sulfuric acid purification and recovery device of this utility model; Figure 5 This is a schematic diagram of the sulfuric acid purification and recovery device of this utility model.

[0025] In each of the attached diagrams: 1. Sulfuric acid pump; 11. Raw material inlet; 2. Filter; 3. Acid tank; 31. Air inlet; 32. Air pressure regulating valve; 4. Pure water tank; 41. Water inlet; 5. Resin tank; 51. Wastewater outlet; 52. Recycling outlet; 6. Liquid level sensor; 7. Tank pressure regulating valve; 8. Flow observation window; 9. Electrical control box; 91. Control panel; 92. Operation indicator light. Detailed Implementation

[0026] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0027] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0028] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between the components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0029] In the description of this application, it should be understood that the terms "upper", "lower", "side", "front", "rear", etc., indicate the orientation or positional relationship based on the installation orientation or positional relationship, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0030] In the description of this application, it should be noted that the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0031] It should also be noted that in the embodiments of this application, the same reference numerals are used to represent the same component or part. For the same part in the embodiments of this application, the reference numerals may only be used to mark one part or component as an example. It should be understood that the reference numerals are also applicable to other identical parts or components.

[0032] Furthermore, in this application, the technical features described in an open-ended manner include both closed technical solutions composed of the listed features and open technical solutions that include the listed features.

[0033] To further understand the utility model content, features, and effects of this application, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings: like Figure 1-5As shown, the sulfuric acid purification and recovery device includes a sulfuric acid pump 1, a filter 2, an acid tank 3, a pure water tank 4, and a resin tank 5. The sulfuric acid pump 1 is equipped with a raw liquid inlet 11. The filter 2 and the sulfuric acid pump 1 are connected by a pipeline. The acid tank 3 and the resin tank 5 are connected by a pipeline. Both the acid tank 3 and the pure water tank 4 are equipped with air inlets 31. The pure water tank 4 is equipped with a water inlet 41. The resin tank 5 and the pure water tank 4 are connected by a pipeline. The resin tank 5 is equipped with a wastewater outlet 51 and a recovery outlet 52. The resin tank 5 contains resin for adsorbing metal ions. In this embodiment, the pipe is a UPVC pipe (i.e., a plastic pipe with polyvinyl chloride resin as the carrier). The UPVC pipe will not affect or contaminate the acid components. Of course, the pipe material is not limited to this; it can be any other material that will not affect or contaminate the acid components. The resin in the resin tank is Tulsimer T-62 MP resin, RTL-91 aluminum-based lithium selective adsorption resin, or Haipu wet-process phosphoric acid purification resin. Of course, it can also be any other resin that can adsorb metal ions. The raw liquid is transferred from the raw liquid inlet to the acid tank by a sulfuric acid pump. During the transfer to the acid tank, suspended solids are filtered out by a filter. Compressed gas is transferred to the acid tank through the air inlet. The gas pushes the raw liquid in the acid tank into the resin tank. The resin in the resin tank adsorbs the metal ions in the raw liquid. The waste liquid is discharged through the wastewater outlet. Pure water is introduced into the pure water tank through the water inlet. The pure water tank transfers pure water to the resin tank to replace the raw liquid in the resin tank that has adsorbed metal ions. The resin tank discharges the raw liquid that has adsorbed metal ions through the recovery outlet. This process eliminates the need for chemical additives, effectively avoiding resource waste and reducing costs. Of course, it's not limited to this; other methods capable of achieving the same effect can be used.

[0034] Specifically, filter 2 is a two-stage filter element. In this embodiment, the two-stage filter element consists of a coarse filter element and a fine filter element. By setting up a two-stage filter element, the filtration effect of suspended solids in the raw liquid can be improved. Of course, it is not limited to this; other filters that can improve the filtration effect can be used.

[0035] Specifically, sulfuric acid pump 1 is connected to the external anodizing tank via raw material inlet 11. Acid tank 3 and pure water tank 4 are connected to a compressed air source via air inlet 31, and pure water tank 4 is connected to a pure water source via water inlet 41. Resin tank 5 is connected to a wastewater pool via wastewater outlet 51, and resin tank 5 is connected to the external anodizing tank via recovery outlet 52. In this embodiment, the raw material from the anodizing tank can be transferred to the acid tank via the raw material inlet and sulfuric acid pump; compressed air enters the acid tank and pure water tank via the air inlet, and the gas input can control the liquid flow in the acid tank and pure water tank; the water source enters the pure water tank via the water inlet; the waste liquid in the resin tank can be discharged to the wastewater pool via the wastewater outlet and discharged into the external anodizing tank via the recovery outlet for continued use. Of course, this is not limited to this; other devices that can achieve the same function can be used.

[0036] Specifically, an intake pressure regulating valve 32 for adjusting the intake air pressure is provided on the air inlet 31. In this embodiment, the intake pressure regulating valve can control the dynamic pressure balance during compressed air intake. Of course, it is not limited to this; any other valve capable of controlling the dynamic pressure balance during intake can be used.

[0037] Specifically, a level sensor 6 is provided on the acid tank 3 and / or the pure water tank 4 to monitor the liquid level inside the acid tank 3 and / or the pure water tank 4. In this embodiment, level sensors are provided on both the acid tank and the pure water tank, which facilitates the monitoring of the liquid level status inside the acid tank and the pure water tank by the operators. Of course, it is not limited to this; any other sensor capable of sensing the liquid level status inside the acid tank and the pure water tank can be used.

[0038] Specifically, the acid tank 3 and / or the pure water tank 4 are equipped with a tank pressure regulating valve 7 for adjusting the pressure of the acid tank 3 and / or the pure water tank 4, and a flow observation window 8 for observing the liquid flow rate inside the acid tank 3 and / or the pure water tank 4. In this embodiment, the acid tank and the pure water tank are equipped with a tank pressure regulating valve and a flow observation window. The tank pressure regulating valve facilitates the adjustment of the pressure inside the acid tank and the pure water tank, thereby controlling the liquid flow rate inside the acid tank and the pure water tank; of course, it is not limited to this, and any other valve capable of adjusting the pressure inside the acid tank and the pure water tank can be used. The flow observation window facilitates the operator's real-time observation of the liquid flow rate inside the acid tank and the pure water tank; of course, it is not limited to this, and any other valve that facilitates the observation of the liquid flow rate inside the acid tank and the pure water tank can be used.

[0039] Specifically, an electrical control box 9 is also provided on the sulfuric acid pump 1, which is connected to the sulfuric acid pump 1, the inlet pressure regulating valve 32, and the liquid level sensor 6. In this embodiment, the electrical control box facilitates the control of the start and stop of the sulfuric acid pump, the inlet pressure regulating valve, and the liquid level sensor. Of course, it is not limited to this; it can be any other device capable of controlling the sulfuric acid pump, the inlet pressure regulating valve, and the liquid level sensor.

[0040] Specifically, the electrical control box 9 is equipped with a control panel 91 and a running indicator light 92. In this embodiment, the control panel is used to control the operation of the sulfuric acid pump, the inlet pressure regulating valve, and the liquid level sensor. However, it is not limited to these; any other device capable of controlling the sulfuric acid pump, the inlet pressure regulating valve, and the liquid level sensor can be used. The running indicator light emits different colors of light to reflect the operating status of the purification and recovery device. For example, red indicates a malfunction or shutdown of the purification and recovery device, while green indicates normal operation. Again, it is not limited to these; any other device capable of reflecting the operating status of the purification and recovery device can be used.

[0041] Working principle: The raw solution from the external anodizing tank is transferred from the raw solution inlet to the acid tank via a sulfuric acid pump. During the transfer to the acid tank, suspended solids are filtered out by a filter. Compressed gas is then transferred to the acid tank through the air inlet, pushing the raw solution in the acid tank into the resin tank. The resin in the resin tank adsorbs metal ions from the raw solution. The waste liquid is discharged to the wastewater pool through the wastewater outlet. Pure water is introduced into the pure water tank through the water inlet. The pure water tank transfers pure water to the resin tank, replacing the raw solution in the resin tank that has adsorbed metal ions. The resin tank then discharges the raw solution with adsorbed metal ions through the recovery outlet back to the external anodizing tank for continued use.

[0042] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A sulfuric acid purification and recovery device, characterized in that: The system includes a sulfuric acid pump (1), a filter (2), an acid tank (3), a pure water tank (4), and a resin tank (5). The sulfuric acid pump (1) is provided with a raw liquid inlet (11). The filter (2) and the sulfuric acid pump (1) are connected by a pipe. The acid tank (3) and the resin tank (5) are connected by a pipe. The acid tank (3) and the pure water tank (4) are both provided with an air inlet (31). The pure water tank (4) is provided with a water inlet (41). The resin tank (5) and the pure water tank (4) are connected by a pipe. The resin tank (5) is provided with a wastewater outlet (51) and a recovery outlet (52). The resin tank (5) contains resin for adsorbing metal ions.

2. The sulfuric acid purification and recovery device according to claim 1, characterized in that: The filter (2) is a two-stage filter element.

3. The sulfuric acid purification and recovery device according to claim 1 or 2, characterized in that: The sulfuric acid pump (1) is connected to the external anodizing tank through the raw liquid inlet (11).

4. The sulfuric acid purification and recovery device according to claim 3, characterized in that: The acid tank (3) and the pure water tank (4) are connected to a compressed air source through the air inlet (31), and the pure water tank (4) is connected to a pure water source through the water inlet (41).

5. The sulfuric acid purification and recovery device according to claim 4, characterized in that: The resin tank (5) is connected to the wastewater pool via the wastewater outlet (51), and the resin tank (5) is connected to the external anodizing tank via the recovery outlet (52).

6. The sulfuric acid purification and recovery device according to claim 4 or 5, characterized in that: An intake pressure regulating valve (32) for adjusting the intake air pressure is provided on the air inlet (31).

7. The sulfuric acid purification and recovery device according to claim 6, characterized in that: A liquid level sensor (6) is provided on the acid tank (3) and / or the pure water tank (4) for monitoring the liquid level in the acid tank (3) and / or the pure water tank (4).

8. The sulfuric acid purification and recovery device according to claim 7, characterized in that: The acid tank (3) and / or the pure water tank (4) are provided with a tank pressure regulating valve (7) for adjusting the pressure of the acid tank (3) and / or the pure water tank (4) and a flow observation window (8) for observing the liquid flow rate in the acid tank (3) and / or the pure water tank (4).

9. The sulfuric acid purification and recovery device according to claim 7 or 8, characterized in that: An electrical control box (9) is also provided on the sulfuric acid pump (1), and the electrical control box (9) is connected to the sulfuric acid pump (1), the inlet pressure regulating valve (32), and the liquid level sensor (6).

10. The sulfuric acid purification and recovery device according to claim 9, characterized in that: The electrical control box (9) is equipped with a control panel (91) and a running indicator light (92).

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