Concentrated acid recovery equipment for metal surface treatment

Abstract

The utility model discloses concentrated acid recovery equipment for metal surface treatment, which relates to the field of concentrated acid recovery equipment and comprises a concentration tank, a heater is fixedly mounted at the bottom end of the concentration tank, a discharge pipe is fixedly mounted at the bottom end of the heater in a penetrating manner, and an air inlet electromagnetic valve is fixedly mounted at the lower end of one side of the concentration tank in a penetrating manner. A tank cover is arranged at the top end of the concentration tank, a liquid inlet electromagnetic valve is fixedly arranged in the middle of the top end penetrating through the tank cover, a filtering assembly is arranged in the concentration tank and close to the top end, the filtering assembly comprises a filtering cylinder, and an anti-leakage net is fixedly arranged on the inner ring of the filtering cylinder and close to the bottom end. By arranging the heater, the air inlet electromagnetic valve, the water drainage electromagnetic valve, the liquid inlet electromagnetic valve, the filtering assembly, the partition plate and the nozzle, concentrated acid waste liquid can be conveniently filtered and recycled, the concentrated acid waste liquid and acid mist can be recycled at the same time, the recycling efficiency is improved, and equipment blockage is avoided.

Description

Technical Field

[0001] The utility model relates to the field of concentrated acid recovery equipment, in particular to concentrated acid recovery equipment used for metal surface treatment. Background Art

[0002] During the metal surface treatment process, in order to remove the oxide layer on the metal surface, it is necessary to soak the metal with concentrated acid to separate the oxide layer. During the treatment of the metal surface, waste acid and acid mist will be formed. In order to save resources, the treated waste liquid needs to be recovered and concentrated to facilitate the recovery of concentrated acid. This solution specifically relates to concentrated acid recovery equipment for metal surface treatment. The existing concentrated acid recovery equipment for metal surface treatment can only be used to treat waste acid or acid mist alone, and cannot be recycled and treated at the same time. The separate recovery of waste acid and acid mist is not only troublesome, but also reduces the efficiency of concentrated acid recovery. At the same time, during the recovery process, solid particles in the concentrated acid waste liquid cannot be filtered, which easily leads to equipment blockage. Utility Model Content

[0003] The main purpose of the utility model is to provide a concentrated acid recovery device for metal surface treatment, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A concentrated acid recovery device for metal surface treatment comprises a concentration tank, a heater is fixedly installed at the bottom end of the concentration tank, a discharge pipe is fixedly installed through the bottom end of the heater, an air intake solenoid valve is fixedly installed through one side of the concentration tank near the lower end, a drainage solenoid valve is fixedly installed through the other side of the concentration tank near the lower end, a tank cover is arranged at the top end of the concentration tank, a liquid inlet solenoid valve is fixedly installed through the top end of the tank cover, and a filter assembly is arranged inside the concentration tank near the top end.

[0006] As a further solution of the utility model, the filter assembly includes a filter cartridge, an inner circle of the filter cartridge is fixedly installed with a leak-proof net near the bottom end, two filter sponge pads and a layer of activated carbon filler are arranged inside the filter cartridge and at the top of the leak-proof net, and the activated carbon filler layer is located between the two filter sponge pads.

[0007] As a further solution of the utility model, a tripod bracket is fixedly mounted on the bottom end of the outer ring of the concentration tank.

[0008] As a further solution of the utility model, a clamping groove is provided through the top end of the concentration tank near the inner circle, and the tank cover is clamped with the concentration tank through the clamping groove.

[0009] As a further solution of the utility model, a partition is fixedly installed in the center of the inner wall of the concentration tank and directly below the filter cartridge, and a plurality of nozzles are fixedly installed in the center through the upper and lower ends of the partition.

[0010] As a further solution of the utility model, the filter cartridge is snap-connected with the concentration tank.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model is provided with a heater, an air intake solenoid valve, a drainage solenoid valve, a liquid intake solenoid valve, a filtering component, a partition and a nozzle, so that acid mist and concentrated acid waste liquid can be easily and independently transported to a concentration tank through the air intake solenoid valve and the liquid intake solenoid valve, and then the concentrated acid waste liquid is filtered by an activated carbon filler layer and a filter sponge pad in a filter cartridge to remove solid particles in the concentrated acid waste liquid, and the filtered concentrated acid waste liquid passes through a leak-proof net and falls onto the partition, and is then sprayed out through a nozzle, and the sprayed concentrated acid waste liquid droplets absorb the acid mist and fall into the heater, and the concentrated acid waste liquid is heated by the heater to concentrate the concentrated acid waste liquid, remove excess water, and conveniently filter and recycle the concentrated acid waste liquid, and can simultaneously recycle the concentrated acid waste liquid and acid mist, thereby improving the recycling efficiency and avoiding equipment clogging. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a concentrated acid recovery device for metal surface treatment according to the utility model;

[0014] Figure 2 This is a disassembled diagram of the overall structure of a concentrated acid recovery device for metal surface treatment according to the utility model;

[0015] Figure 3 This is a front view of the internal structure of a concentration tank in a concentrated acid recovery device for metal surface treatment according to the utility model;

[0016] Figure 4 The utility model is a front view of the internal structure of a filter component in a concentrated acid recovery device for metal surface treatment.

[0017] In the figure: 1. Concentration tank; 2. Tripod; 3. Heater; 4. Discharge pipe; 5. Tank cover; 6. Air intake solenoid valve; 7. Drainage solenoid valve; 8. Liquid inlet solenoid valve; 9. Filter assembly; 10. Slot; 11. Partition; 12. Nozzle; 901. Filter cartridge; 902. Anti-leakage net; 903. Activated carbon filler layer; 904. Filter sponge pad. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] like Figure 1-Figure 4 As shown, a concentrated acid recovery device for metal surface treatment includes a concentration tank 1, a heater 3 is fixedly installed at the bottom end of the concentration tank 1, a discharge pipe 4 is fixedly installed through the bottom end of the heater 3, an air intake solenoid valve 6 is fixedly installed through one side of the concentration tank 1 near the lower end, a drainage solenoid valve 7 is fixedly installed through the other side of the concentration tank 1 near the lower end, a tank cover 5 is provided at the top end of the concentration tank 1, a liquid inlet solenoid valve 8 is fixedly installed through the top end of the tank cover 5, and a filter component 9 is provided inside the concentration tank 1 near the top end.

[0020] The filter assembly 9 includes a filter cartridge 901, an inner ring of which is fixedly mounted with a leak-proof net 902 near the bottom end, two filter sponge pads 904 and an activated carbon filler layer 903 are arranged inside the filter cartridge 901 and at the top of the leak-proof net 902, and the activated carbon filler layer 903 is located between the two filter sponge pads 904. By setting up the filter assembly 9, it is convenient to filter the waste acid after metal surface treatment, remove solid particles in the waste acid, and prevent the solid particles from clogging the nozzle 12.

[0021] A tripod support 2 is fixedly mounted on the bottom of the outer ring of the concentration tank 1 , and the tripod support 2 is provided to facilitate supporting the concentration tank 1 .

[0022] A clamping groove 10 is provided at the top of the concentration tank 1 near the inner circle, and the tank cover 5 is clamped with the concentration tank 1 through the clamping groove 10. By setting the tank cover 5 and the concentration tank 1 to be clamped, leakage of acid mist entering the concentration tank 1 is avoided.

[0023] A partition 11 is fixedly installed in the center of the inner wall of the concentration tank 1 and directly below the filter cylinder 901, and a plurality of nozzles 12 are fixedly installed in the center through the upper and lower ends of the partition 11. After being filtered, the waste liquid passes through the anti-leakage net 902 and falls to the top of the partition 11, and is then sprayed out through the nozzle 12 to contact and absorb the acid mist.

[0024] The filter cartridge 901 is snap-connected with the concentration tank 1 , which facilitates the disassembly of the filter cartridge 901 and the replacement of the filler in the filter cartridge 901 .

[0025] It should be noted that the utility model is a concentrated acid recovery device for metal surface treatment. When in use, the air inlet solenoid valve 6 and the liquid inlet solenoid valve 8 are first opened, and the concentrated acid waste liquid of the metal surface treatment is diluted and introduced into the concentration tank 1 through the liquid inlet solenoid valve 8, and the acid mist formed in the metal surface treatment process is introduced into the concentration tank 1 through the air inlet solenoid valve 6;

[0026] After the concentrated acid waste liquid enters the concentration tank 1, the concentrated acid waste liquid is filtered by the filter assembly 9, and the solid particles in the concentrated acid waste liquid are filtered by the filter sponge pad 904 and the activated carbon filler layer 903. The filtered concentrated acid waste liquid passes through the anti-leakage net 902 and falls on the partition 11, and then is sprayed out through the nozzle 12. The concentrated acid waste liquid after spraying contacts with the acid mist, and the droplets of the concentrated acid waste liquid absorb the acid mist and fall into the heater 3;

[0027] After the delivery of the acid mist and concentrated acid waste liquid is completed, the air inlet solenoid valve 6 and the liquid inlet solenoid valve 8 are closed, the heater 3 is started at the same time, and the drain solenoid valve 7 is opened, the diluted concentrated acid waste liquid is heated and concentrated by the heater 3, and the water vapor is discharged through the drain solenoid valve 7. After the concentration is completed, the heater 3 and the drain solenoid valve 7 are closed again, and the concentrated acid liquid is discharged through the discharge pipe 4;

[0028] After the concentrated acid recovery is completed, open the tank cover 5, take out the filter assembly 9 from the concentration tank 1, replace the filter sponge pad 904 and the activated carbon filler layer 903 used as fillers in the filter cartridge 901, and at the same time, in order to facilitate lifting the tank cover 5, when transporting the dilution liquid of the concentrated acid waste liquid, the pipeline connected to the liquid inlet solenoid valve 8 needs a corrosion-resistant hose.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A concentrated acid recovery device for metal surface treatment, characterized in that: The invention comprises a concentration tank (1), wherein a heater (3) is fixedly installed at the bottom end of the concentration tank (1), a discharge pipe (4) is fixedly installed through the bottom end of the heater (3), an air intake solenoid valve (6) is fixedly installed through one side of the concentration tank (1) near the lower end, a water discharge solenoid valve (7) is fixedly installed through the other side of the concentration tank (1) near the lower end, a tank cover (5) is arranged at the top end of the concentration tank (1), a liquid intake solenoid valve (8) is fixedly installed through the top end of the tank cover (5), and a filter assembly (9) is arranged inside the concentration tank (1) near the top end.

2. The concentrated acid recovery device for metal surface treatment according to claim 1, characterized in that: The filter assembly (9) comprises a filter cartridge (901), an inner ring of the filter cartridge (901) having a leak-proof net (902) fixedly mounted near the bottom end, two filter sponge pads (904) and an activated carbon filler layer (903) arranged inside the filter cartridge (901) and at the top end of the leak-proof net (902), and the activated carbon filler layer (903) is located between the two filter sponge pads (904).

3. The concentrated acid recovery device for metal surface treatment according to claim 1, characterized in that: A tripod bracket (2) is fixedly mounted on the outer ring of the concentration tank (1) near the bottom end.

4. The concentrated acid recovery device for metal surface treatment according to claim 1, characterized in that: A clamping groove (10) is provided at the top end of the concentration tank (1) and close to the inner circle, and the tank cover (5) is clamped with the concentration tank (1) through the clamping groove (10).

5. The concentrated acid recovery device for metal surface treatment according to claim 2, characterized in that: A partition (11) is fixedly installed in the center of the inner wall of the concentration tank (1) and located directly below the filter cartridge (901), and a plurality of nozzles (12) are fixedly installed in the center through the upper and lower ends of the partition (11).

6. The concentrated acid recovery device for metal surface treatment according to claim 2, characterized in that: The filter cartridge (901) is snap-connected to the concentration tank (1).

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