Waste acid solution treatment equipment

Abstract

The utility model discloses waste acid solution treatment equipment, relates to the technical field of waste acid solution treatment for production of etched foils, and aims to solve the problem that environmental pollution can be caused in the later period due to the fact that a waste acid solution treatment device for production of etched foils in the prior art adopts a step-by-step precipitation mode and the treatment mode is easy to cause incomplete treatment. Sealing covers are arranged at the tops of the blending tank and the filter pressing tank, supporting frames are arranged at the bottoms of the blending tank and the filter pressing tank, and a motor and an air cylinder are arranged at the tops of the two sealing covers respectively; the liquid inlet hoppers are arranged on the two sides of the motor, filter pipes are arranged at the bottoms of the two liquid inlet hoppers, filter plates are installed in the filter pipes, and the filter plates are connected with the interiors of the filter pipes in an inserted mode; the connecting pipe is arranged between the blending tank and the filter pressing tank, a pump body is mounted on the connecting pipe, and an electromagnetic valve is mounted on the front end surface of the pump body.

Description

Technical Field

[0001] The utility model relates to the technical field of waste acid solution treatment for corrosion foil production, in particular to waste acid solution treatment equipment. Background Art

[0002] Electrode foil is a key raw material for the manufacture of aluminum electrolytic capacitors. The rapid development of the electronics industry, especially the rapid expansion of the market for complete machine products such as communication products, computers, and home appliances, has fueled the development of the electrode foil industry. During the production process of electrode foil, a large amount of acid-containing wastewater will be generated. The waste acid water contains many impurities and is turbid and cannot be reused, so it needs to be treated.

[0003] For example, the Chinese authorized patent with announcement number CN219991385U (a chemical etching foil production waste acid liquid treatment equipment): includes a circulating filtration device, and the outlet end of the circulating filtration device is provided with a purification treatment device; the circulating filtration device includes a circulating box, and the front and rear ends of the circulating box are provided with circulating pumps, and the circulating box is provided with a number of partitions of different heights; a filtering mechanism is provided at the bottom of the circulating box; the purification treatment device includes a primary treatment box, an electrolytic box and a secondary treatment box, and is provided with a circulating filtration device and a purification treatment device. Through the setting of partitions of different heights in the circulating filtration device, the waste acid liquid can flow layer by layer to the next filter chamber, and the turbidity in the acid liquid can settle to the bottom of the filter chamber. After such layer-by-layer filtration, the acid liquid gradually becomes clear and can be reused by suction through the circulating pump; through the purification treatment device, the precious metals in the acid liquid can be recovered, the harmful chemicals in the acid liquid are reduced, and the pollution is reduced after discharge.

[0004] However, the waste acid liquid treatment device for etching foil production in the above-mentioned prior art uses a step-by-step precipitation method, which is prone to incomplete treatment, thereby causing environmental pollution problems in the later stage; therefore, it does not meet the existing needs. We have proposed a waste acid liquid treatment device. Utility Model Content

[0005] The utility model aims to provide a waste acid solution treatment device to solve the problem that the waste acid solution treatment device for etching foil production in the prior art proposed in the above-mentioned background technology utilizes a step-by-step sedimentation method, which is prone to incomplete treatment and thus may cause environmental pollution in the later stage.

[0006] To achieve the above object, the utility model provides the following technical solution: a waste acid liquid treatment device, comprising a blending tank and a filter press tank, the tops of the blending tank and the filter press tank are both provided with sealing covers, the bottoms of the blending tank and the filter press tank are both provided with supporting frames, and the tops of the two sealing covers are respectively provided with motors and cylinders;

[0007] Also includes:

[0008] A liquid inlet hopper is arranged on both sides of the motor, and two of the liquid inlet hoppers are provided, and a filter tube is provided at the bottom of each of the two liquid inlet hoppers, a filter plate is installed inside the filter tube, and the filter plate is plug-connected with the inside of the filter tube;

[0009] A connecting pipe is arranged between the blending tank and the filter press tank, a pump body is installed on the connecting pipe, and a solenoid valve is installed on the front end surface of the pump body.

[0010] Preferably, a liquid inlet pipe is provided on one end surface of the blending tank, and a liquid outlet pipe is provided at the bottom of the filter press tank.

[0011] Preferably, a rotating shaft is installed inside the blending tank, a mounting seat is provided on the rotating shaft, and a plurality of mounting seats are provided.

[0012] Preferably, stirring rods are provided on both sides of several of the mounting seats.

[0013] Preferably, support blocks are installed on both sides of the inner walls of the bottom end of the filter press tank.

[0014] Preferably, a mounting frame is provided above the support block, and a grid plate is provided inside the mounting frame.

[0015] Preferably, a filter press plate is arranged above the grid plate, and a pneumatic telescopic rod is installed on the upper surface of the filter press plate.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model provides a blending tank and a filter press tank, injects waste acid liquid into the interior of the blending tank through a liquid inlet hopper, injects CaO and NaOH solutions through a liquid inlet pipe for neutralization, and uses a motor to drive a rotating shaft to drive a stirring rod for mixing to ensure its uniformity and adjust the pH value to be close to neutral. After that, the mixed liquid is pumped into the interior of the filter press tank through a connecting pipe through a pump body, and a cylinder drives a pneumatic telescopic rod to make the filter press plate filter the liquid through a mesh plate and then discharge it through a liquid outlet pipe to obtain treated wastewater, thereby ensuring the quality of its treatment. This solves the problem that the waste acid liquid treatment device for corrosion foil production in the prior art uses a step-by-step precipitation method, which is prone to incomplete treatment, thereby causing environmental pollution in the later stage.

[0018] 2. By plugging the filter plate into the filter tube below the liquid inlet hopper, the waste residue in the waste acid liquid is preliminarily filtered through the filter plate before the waste acid liquid is poured into the blending tank, thereby ensuring the quality of subsequent treatment, and the filter plate can be pulled out for easy treatment of the waste residue. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the waste acid liquid treatment equipment of the utility model;

[0020] Figure 2 It is an enlarged schematic diagram of the local liquid inlet hopper structure of the waste acid liquid treatment equipment of the utility model;

[0021] Figure 3 It is an enlarged schematic diagram of the internal stirring mechanism structure of the blending tank of the utility model;

[0022] Figure 4 It is an enlarged schematic diagram of the internal structure of the filter press tank of the utility model;

[0023] In the figure: 1. blending tank; 2. filter press tank; 3. sealing cover; 4. support frame; 5. liquid inlet pipe; 6. motor; 7. liquid inlet bucket; 8. cylinder; 9. liquid outlet pipe; 10. connecting pipe; 11. pump body; 12. filter tube; 13. filter plate; 14. rotating shaft; 15. mounting seat; 16. stirring rod; 17. pneumatic telescopic rod; 18. filter press plate; 19. mounting frame; 20. grid plate; 21. support block. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] See also Figure 1-4 The utility model provides an embodiment: a waste acid liquid treatment device, comprising a blending tank 1 and a filter press tank 2, the tops of the blending tank 1 and the filter press tank 2 are both provided with sealing covers 3, the bottoms of the blending tank 1 and the filter press tank 2 are both provided with supporting frames 4, and the tops of the two sealing covers 3 are respectively provided with motors 6 and cylinders 8;

[0026] Also includes:

[0027] The liquid inlet hopper 7 is arranged on both sides of the motor 6, and there are two liquid inlet hoppers 7. The bottom of the two liquid inlet hoppers 7 is provided with a filter tube 12, and a filter plate 13 is installed inside the filter tube 12, and the filter plate 13 is plug-connected with the inside of the filter tube 12;

[0028] The connecting pipe 10 is arranged between the blending tank 1 and the filter press tank 2. A pump body 11 is installed on the connecting pipe 10. A solenoid valve is installed on the front end surface of the pump body 11. When in use, the waste acid liquid is injected into the blending tank 1 through the liquid inlet hopper 7, and CaO and NaOH solutions are injected through the liquid inlet pipe 5 for neutralization. The motor 6 drives the rotating shaft 14 to drive the stirring rod 16 for mixing to ensure its uniformity and adjust the pH value to be close to neutral. After that, the mixed liquid is pumped into the filter press tank 2 through the connecting pipe 10 through the pump body 11, and the cylinder 8 drives the pneumatic telescopic rod 17 so that the filter press plate 18 passes the liquid through the mesh plate 20. After pressure filtration, it is discharged through the liquid outlet pipe 9 to obtain treated wastewater, ensuring the quality of its treatment, solving the problem that the waste acid liquid treatment device for corrosion foil production in the prior art uses a step-by-step sedimentation method, which is prone to incomplete treatment, thereby causing environmental pollution problems in the later stage, and also through the filter plate 13 connected to the inside of the filter tube 12 under the liquid inlet bucket 7, the waste residue in the waste acid liquid is preliminarily filtered through the filter plate 13 before the waste acid liquid is poured into the blending tank 1, thereby ensuring the quality of subsequent treatment, and the filter plate 13 can be pulled out to facilitate the treatment of the waste residue.

[0029] See also Figure 1-Figure 4 A liquid inlet pipe 5 is provided on one end face of the blending tank 1 , and a liquid outlet pipe 9 is provided on the bottom of the filter press tank 2 .

[0030] See also Figure 1-Figure 4 A rotating shaft 14 is installed inside the blending tank 1, and a mounting seat 15 is arranged on the rotating shaft 14, and there are several mounting seats 15. Before the waste acid liquid is poured into the blending tank 1, the waste residue in the waste acid liquid is preliminarily filtered through the filter plate 13 to ensure the quality of subsequent treatment, and the filter plate 13 can be pulled out to facilitate the treatment of the waste residue.

[0031] See also Figure 1-Figure 4 A stirring rod 16 is arranged on both sides of several mounting seats 15. The motor 6 drives the rotating shaft 14 to drive the stirring rod 16 to mix, ensure its uniformity, and adjust the pH value to be close to neutral. Then, the mixed liquid is pumped into the interior of the filter press tank 2 through the pump body 11 through the connecting pipe 10. The cylinder 8 drives the pneumatic telescopic rod 17 to make the filter press plate 18 filter the liquid through the mesh plate 20 and then discharge it through the liquid outlet pipe 9 to obtain treated wastewater, ensuring its treatment quality.

[0032] See also Figure 1-Figure 4 Support blocks 21 are installed on the inner walls on both sides of the bottom end of the filter press tank 2.

[0033] See also Figure 1-Figure 4A mounting frame 19 is arranged above the support block 21, and a mesh plate 20 is arranged inside the mounting frame 19. The waste acid liquid is injected into the blending tank 1 through the liquid inlet hopper 7, and CaO and NaOH solutions are injected through the liquid inlet pipe 5 for neutralization, and the motor 6 drives the rotating shaft 14 to drive the stirring rod 16 for mixing to ensure its uniformity and adjust the pH value to be nearly neutral. After that, the mixed liquid is pumped into the interior of the filter press tank 2 through the connecting pipe 10 through the pump body 11, and the cylinder 8 drives the pneumatic telescopic rod 17 to make the filter press plate 18 filter the liquid through the mesh plate 20 and then discharge it through the liquid outlet pipe 9 to obtain treated wastewater, ensuring its treatment quality, and solving the problem that the waste acid liquid treatment device for corrosion foil production in the prior art uses a step-by-step precipitation method, which is prone to incomplete treatment, thereby causing environmental pollution in the later stage.

[0034] See also Figure 1-Figure 4 A filter press plate 18 is arranged above the mesh plate 20 , and a pneumatic telescopic rod 17 is installed on the upper surface of the filter press plate 18 .

[0035] Working principle: When in use, the waste acid liquid is injected into the blending tank 1 through the liquid inlet hopper 7, and the CaO and NaOH solutions are injected through the liquid inlet pipe 5 for neutralization, and the motor 6 drives the rotating shaft 14 to drive the stirring rod 16 for mixing to ensure its uniformity and adjust the pH value to be close to neutral. Then, the mixed liquid is pumped into the filter press tank 2 through the connecting pipe 10 through the pump body 11, and the cylinder 8 drives the pneumatic telescopic rod 17 to make the filter press plate 18 filter the liquid through the mesh plate 20 and then discharge it through the liquid outlet pipe 9 to obtain the treated wastewater. The quality of the treatment is guaranteed, and the problem of the waste acid liquid treatment device for corrosion foil production in the prior art using a step-by-step sedimentation method is solved, which is prone to incomplete treatment, thereby causing environmental pollution problems in the later stage. In addition, a filter plate 13 is plugged into the inside of the filter tube 12 below the liquid inlet hopper 7, and the waste residue in the waste acid liquid is preliminarily filtered through the filter plate 13 before the waste acid liquid is poured into the blending tank 1, thereby ensuring the quality of subsequent treatment, and the filter plate 13 can be pulled out to facilitate the treatment of the waste residue.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A waste acid liquid treatment device, comprising a blending tank (1) and a filter press tank (2), wherein the tops of the blending tank (1) and the filter press tank (2) are both provided with sealing covers (3), the bottoms of the blending tank (1) and the filter press tank (2) are both provided with support frames (4), and the tops of the two sealing covers (3) are respectively provided with motors (6) and cylinders (8); Features: Also includes: A liquid inlet hopper (7) is arranged on both sides of the motor (6), and two of the liquid inlet hoppers (7) are provided, and a filter tube (12) is provided at the bottom of each of the two liquid inlet hoppers (7), a filter plate (13) is installed inside the filter tube (12), and the filter plate (13) is plug-connected to the inside of the filter tube (12); A connecting pipe (10) is arranged between the blending tank (1) and the filter press tank (2); a pump body (11) is installed on the connecting pipe (10); and a solenoid valve is installed on the front end surface of the pump body (11).

2. A waste acid liquid treatment equipment according to claim 1, characterized in that: A liquid inlet pipe (5) is provided on one end surface of the blending tank (1), and a liquid outlet pipe (9) is provided at the bottom of the filter press tank (2).

3. A waste acid liquid treatment equipment according to claim 1, characterized in that: A rotating shaft (14) is installed inside the blending tank (1), a mounting seat (15) is provided on the rotating shaft (14), and a plurality of mounting seats (15) are provided.

4. A waste acid liquid treatment equipment according to claim 3, characterized in that: Stirring rods (16) are provided on both sides of the plurality of mounting seats (15).

5. A waste acid liquid treatment equipment according to claim 1, characterized in that: Support blocks (21) are installed on both inner walls of the bottom end of the filter press tank (2).

6. A waste acid liquid treatment equipment according to claim 5, characterized in that: A mounting frame (19) is arranged above the support block (21), and a grid plate (20) is arranged inside the mounting frame (19).

7. A waste acid liquid treatment equipment according to claim 6, characterized in that: A filter press plate (18) is arranged above the mesh plate (20), and a pneumatic telescopic rod (17) is installed on the upper surface of the filter press plate (18).

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