Waste acid recovery treatment device

Abstract

The utility model discloses a waste acid recovery processing device which comprises a neutralization tank, a neutralizer filling mechanism, a stirring mechanism and a solid-liquid separation tank, supporting legs are arranged at the bottom of the neutralization tank, a conveying pipe is arranged on the upper portion of the neutralization tank, the solid-liquid separation tank is located below the neutralization tank, a discharging pipe is connected between the solid-liquid separation tank and the neutralization tank, and the discharging pipe is connected with the neutralization tank. A first valve is arranged on the discharging pipe, the neutralizing agent filling mechanism is arranged on the neutralizing tank, the stirring mechanism is arranged on the neutralizing tank, the neutralizing agent filling mechanism comprises a flow dividing box and a storage hopper, the flow dividing box is arranged at the top of the neutralizing tank, the storage hopper is arranged on the flow dividing box, a cylindrical cavity is formed in the flow dividing box, and a second valve is arranged in the cylindrical cavity. And the cylindrical cavity is communicated with the storage hopper through a feeding pipe. The utility model relates to the technical field of waste acid treatment, and particularly provides a waste acid recovery treatment device which is convenient for adding a neutralizing agent in batches, is safer to use, has a better stirring effect and is convenient for carrying out solid-liquid separation on reacted waste acid.

Description

Technical Field

[0001] The utility model relates to the technical field of waste acid treatment, in particular to a waste acid recovery and treatment device. Background Technique

[0002] A large amount of waste acid is generated in the industrial production process. This waste acid contains many toxic and harmful substances, as well as metal ions and useful acids with different concentrations. Direct discharge not only wastes resources and pollutes the environment, but also poses a threat to human health. Therefore, a treatment device is usually required to treat the waste acid.

[0003] The existing treatment method is to add a neutralizing agent to the waste acid for a neutralization reaction. However, in traditional technologies, the staff usually adds all the neutralizing agent to the waste acid at one time. For some waste acids with relatively high concentrations, this may cause the reaction to be too violent, generating a large amount of heat and bubbles, and even easily causing danger. In addition, when treating the waste acid by neutralization, a stirring device is also used to stir the waste acid and the neutralizing agent. However, the existing stirring device has a relatively simple structure and only stirs in the same direction by a single stirring shaft, resulting in poor stirring effect and reducing the practicability of the device. Content of the Utility Model

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a waste acid recovery and treatment device which is convenient for adding the neutralizing agent in batches, is safer to use, has a better stirring effect, and is convenient for solid-liquid separation of the waste acid after the reaction.

[0005] The technical solution adopted by the utility model is as follows: A waste acid recovery and treatment device of the utility model includes a neutralization tank, a neutralizing agent filling mechanism, a stirring mechanism and a solid-liquid separation tank. The bottom of the neutralization tank is provided with legs, the upper part of the neutralization tank is provided with a conveying pipe, the solid-liquid separation tank is located below the neutralization tank, a feeding pipe is connected between the solid-liquid separation tank and the neutralization tank, and a first valve is arranged on the feeding pipe. The neutralizing agent filling mechanism is arranged on the neutralization tank, and the stirring mechanism is arranged on the neutralization tank. The neutralizing agent filling mechanism includes a shunt box and a storage hopper. The shunt box is arranged on the top of the neutralization tank, the storage hopper is arranged on the shunt box, a cylindrical cavity is arranged in the shunt box, the cylindrical cavity is communicated with the storage hopper through a feeding pipe, the cylindrical cavity is communicated with the neutralization tank through a discharging pipe, a driving shaft is rotatably arranged in the cylindrical cavity, a shunt wheel is sleeved on the driving shaft, the outer edge of the shunt wheel forms a seal with the inner wall of the cylindrical cavity, and liquid separation grooves are arranged on the shunt wheel.

[0006] Further, the stirring mechanism includes a central stirring shaft, stirring paddles, a stirring sleeve shaft, and stirring rods. An installation frame is provided on the neutralization tank. The central stirring shaft is rotatably arranged on the installation frame and extends downward into the neutralization tank. The stirring paddles are arranged on the central stirring shaft. The stirring sleeve shaft is rotatably sleeved on the central stirring shaft and rotatably arranged on the top of the neutralization tank. The stirring rods are arranged on the stirring sleeve shaft. A rotating shaft is rotatably arranged on the installation frame. A first bevel gear is sleeved on the rotating shaft. A second bevel gear is sleeved on the central stirring shaft. A third bevel gear is sleeved on the stirring sleeve shaft. Both the second bevel gear and the third bevel gear are meshed with the first bevel gear.

[0007] Further, a solid-liquid separation chamber and a liquid recovery chamber are provided in the solid-liquid separation tank. The solid-liquid separation chamber and the liquid recovery chamber are communicated through an opening. A filter screen is provided at the opening. The solid-liquid separation chamber and the neutralization tank are communicated through a feed pipe. One side of the solid-liquid separation chamber is communicated with the outside through a discharge port. The liquid recovery chamber is communicated with the outside through a drain pipe. A second valve is provided on the drain pipe. A transmission shaft is rotatably arranged in the solid-liquid separation chamber. A spiral blade is sleeved on the transmission shaft.

[0008] Further, a first motor is provided on the installation frame. The central stirring shaft is arranged on the output shaft of the first motor. A first pulley is sleeved on the drive shaft. A second pulley is sleeved on the rotating shaft. A transmission belt is sleeved on the first pulley and the second pulley.

[0009] Further, a second motor is provided on the solid-liquid separation tank. One end of the transmission shaft is arranged on the output shaft of the second motor.

[0010] Further, several groups of liquid separation tanks are provided. The several groups of liquid separation tanks are distributed in a circular array.

[0011] The beneficial effects obtained by the present utility model with the above structure are as follows: This solution is provided with a neutralizing agent filling mechanism. Through the neutralizing agent filling mechanism, it is convenient to fill the neutralizing agent in batches, in small amounts, and multiple times, avoiding excessive reaction caused by too much neutralizing agent filled at one time and reducing the reaction risk. This solution is provided with a stirring mechanism. Through the stirring mechanism, the waste acid and the neutralizing agent can be mixed and stirred from two directions, enabling the waste acid and the neutralizing agent to be more fully mixed and reacted, and improving the treatment effect on the waste acid. This solution is provided with a solid-liquid separation tank, which facilitates the separation of the solid precipitate and the liquid after the reaction. Description of the Drawings

[0012] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. They are used to explain the present utility model together with the embodiments of the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0013] Figure 1 Isometric view of the embodiment of the present utility model;

[0014] Figure 2 Exploded view of the embodiment of the present utility model;

[0015] Figure 3 Front view of the embodiment of the present utility model;

[0016] Figure 4 Left view of the embodiment of the present utility model;

[0017] Figure 5 Top view of the embodiment of the present utility model;

[0018] Figure 6 Is Figure 4 Cross-sectional view along the A-A section in

[0019] Figure 7 Is Figure 2 Enlarged view of part A in

[0020] Figure 8 Is Figure 6 Enlarged view of part B in

[0021] Wherein, 1, neutralization tank, 2, neutralizing agent filling mechanism, 3, stirring mechanism, 4, solid-liquid separation tank, 5, conveying pipe, 6, support leg, 7, mounting frame, 8, blanking pipe, 9, first valve, 10, shunt box, 11, storage hopper, 12, drive shaft, 13, shunt runner, 14, liquid separation tank, 15, feed pipe, 16, discharge pipe, 17, cylindrical cavity, 18, central stirring shaft, 19, stirring paddle, 20, stirring sleeve shaft, 21, stirring rod, 22, first bevel gear, 23, second bevel gear, 24, third bevel gear, 25, rotating shaft, 26, solid-liquid separation cavity, 27, liquid recovery cavity, 28, filter screen, 29, transmission shaft, 30, spiral blade, 31, discharge port, 32, drain pipe, 33, first motor, 34, first pulley, 35, second pulley, 36, transmission belt, 37, second motor, 38, second valve. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments; based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0024] As Figures 1-8 shown, a waste acid recovery and treatment device of the present utility model includes a neutralization tank 1, a neutralizing agent adding mechanism 2, a stirring mechanism 3 and a solid-liquid separation tank 4. The bottom of the neutralization tank 1 is provided with legs 6, the upper part of the neutralization tank 1 is provided with a conveying pipe 5, the solid-liquid separation tank 4 is located below the neutralization tank 1, and a feeding pipe 8 is connected between the solid-liquid separation tank 4 and the neutralization tank 1. A first valve 9 is provided on the feeding pipe 8. The neutralizing agent adding mechanism 2 is arranged on the neutralization tank 1, and the stirring mechanism 3 is arranged on the neutralization tank 1.

[0025] The neutralizing agent adding mechanism 2 includes a shunt box 10 and a storage hopper 11. The shunt box 10 is arranged on the top of the neutralization tank 1, the storage hopper 11 is arranged on the shunt box 10. A cylindrical cavity 17 is arranged in the shunt box 10. The cylindrical cavity 17 is communicated with the storage hopper 11 through a feeding pipe 15, and the cylindrical cavity 17 is communicated with the neutralization tank 1 through a discharging pipe 16. A driving shaft 12 is rotatably arranged in the cylindrical cavity 17. A shunt rotating wheel 13 is sleeved on the driving shaft 12. The outer edge of the shunt rotating wheel 13 forms a seal with the inner wall of the cylindrical cavity 17. A liquid separation groove 14 is arranged on the shunt rotating wheel 13; there are several groups of liquid separation grooves 14, and several groups of liquid separation grooves 14 are distributed in an annular array.

[0026] The stirring mechanism 3 includes a central stirring shaft 18, stirring paddles 19, a stirring sleeve shaft 20 and stirring rods 21. An installation frame 7 is arranged on the neutralization tank 1. The central stirring shaft 18 is rotatably arranged on the installation frame 7 and extends downward into the neutralization tank 1. The stirring paddles 19 are arranged on the central stirring shaft 18. The stirring sleeve shaft 20 is rotatably sleeved on the central stirring shaft 18 and is rotatably arranged on the top of the neutralization tank 1. The stirring rods 21 are arranged on the stirring sleeve shaft 20. A rotating shaft 25 is rotatably arranged on the installation frame 7. A first bevel gear 22 is sleeved on the rotating shaft 25. A second bevel gear 23 is sleeved on the central stirring shaft 18. A third bevel gear 24 is sleeved on the stirring sleeve shaft 20. Both the second bevel gear 23 and the third bevel gear 24 are meshed with the first bevel gear 22.

[0027] A first motor 33 is arranged on the installation frame 7. The central stirring shaft 18 is arranged on the output shaft of the first motor 33. A first pulley 34 is sleeved on the driving shaft 12. A second pulley 35 is sleeved on the rotating shaft 25. A transmission belt 36 is sleeved on the first pulley 34 and the second pulley 35.

[0028] The solid-liquid separation tank 4 is provided with a solid-liquid separation chamber 26 and a liquid recovery chamber 27. The solid-liquid separation chamber 26 and the liquid recovery chamber 27 are communicated through an opening, and a filter screen 28 is arranged at the opening. The solid-liquid separation chamber 26 and the neutralization tank 1 are communicated through a feeding pipe 8. One side of the solid-liquid separation chamber 26 is communicated with the outside through a discharge port 31, and the liquid recovery chamber 27 is communicated with the outside through a liquid discharge pipe 32. A second valve 38 is arranged on the liquid discharge pipe 32. A transmission shaft 29 is rotatably arranged in the solid-liquid separation chamber 26, and a spiral blade 30 is sleeved on the transmission shaft 29. A second motor 37 is arranged on the solid-liquid separation tank 4, and one end of the transmission shaft 29 is arranged on the output shaft of the second motor 37.

[0029] During specific use, waste acid is input into the neutralization tank 1 through a conveying pipe 5, and a neutralizing agent is added into the storage hopper 11. When it is necessary to treat the waste acid, the first motor 33 is started. The first motor 33 drives the central stirring shaft 18 to rotate. The central stirring shaft 18 drives the stirring paddle 19 and the second bevel gear 23 to rotate. The second bevel gear 23 drives the first bevel gear 22 to rotate. The first bevel gear 22 drives the third bevel gear 24 and the second pulley 35 to rotate. The third bevel gear 24 drives the stirring sleeve shaft 20 to rotate. The stirring sleeve shaft 20 drives the stirring rod 21 to rotate. The second pulley 35 drives the first pulley 34 to rotate through a transmission belt 36. The first pulley 34 drives the diversion wheel 13 to rotate. When the liquid separation groove 14 on the diversion wheel 13 rotates to the feeding pipe 15, a part of the neutralizing agent in the storage hopper 11 will enter the liquid separation groove 14 and rotate together with the diversion wheel 13 until it rotates to the discharge pipe 16, and then the neutralizing agent can enter the neutralization tank 1 through the discharge pipe 16 to be mixed with the waste acid. By setting multiple liquid separation grooves 14 and driving the diversion wheel 13 to continuously rotate, the neutralizing agent can be continuously and in small batches added into the neutralization tank 1 to be mixed with the waste acid, avoiding excessive reaction caused by too much neutralizing agent added at one time and reducing the reaction risk. The waste acid and the neutralizing agent can be mixed and stirred by the stirring paddle 19 and the stirring rod 21. And under the action of the first bevel gear 22, the second bevel gear 23 and the third bevel gear 24, the rotating directions of the stirring paddle 19 and the stirring rod 21 are opposite, so that the waste acid and the neutralizing agent can be mixed and stirred from two directions, making the waste acid and the neutralizing agent mix and react more fully and improving the treatment effect of the waste acid. After the neutralization reaction is completed, the first valve 9 is opened, so that the solid precipitate and the liquid in the neutralization tank 1 enter the solid-liquid separation chamber 26. The second motor 37 can drive the transmission shaft 29 to rotate. The transmission shaft 29 drives the spiral blade 30 to rotate to transport the solid precipitate and the liquid. During the transportation process, the liquid passes through the filter screen 28 and enters the liquid recovery chamber 27, and the liquid can be discharged through the liquid discharge pipe 32. The solid precipitate will be transported to the discharge port 31 and discharged through the discharge port 31.

[0030] In summary, the present solution is provided with a neutralizing agent adding mechanism 2. Through the neutralizing agent adding mechanism 2, it is convenient to add the neutralizing agent in batches, in small amounts, and multiple times, avoiding excessive reaction caused by a large amount of neutralizing agent added at one time and reducing the reaction risk. The present solution is provided with a stirring mechanism 3. Through the stirring mechanism 3, the waste acid and the neutralizing agent can be mixed and stirred from two directions, enabling the waste acid and the neutralizing agent to be more fully mixed and reacted, and improving the treatment effect on the waste acid. The present solution is provided with a solid-liquid separation tank 4. Through the solid-liquid separation tank 4, it is convenient to separate the solid precipitate and the liquid after the reaction.

[0031] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprises", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic features of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0033] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A waste acid recovery and treatment device, comprising a neutralization tank (1), a neutralizer filling mechanism (2), a stirring mechanism (3) and a solid-liquid separation tank (4), characterized in that: The bottom of the neutralization tank (1) is provided with a support leg (6), the upper part of the neutralization tank (1) is provided with a conveying pipe (5), the solid-liquid separation tank (4) is located below the neutralization tank (1), a feed pipe (8) is connected between the solid-liquid separation tank (4) and the neutralization tank (1), and a first valve (9) is provided on the feed pipe (8), the neutralizer filling mechanism (2) is provided on the neutralization tank (1), the stirring mechanism (3) is provided on the neutralization tank (1), the neutralizer filling mechanism (2) comprises a diverter box (10) and a storage hopper (11), the diverter box (10) is provided on the top of the neutralization tank (1), the The storage hopper (11) is arranged on the diversion box (10), and a cylindrical cavity (17) is arranged in the diversion box (10). The cylindrical cavity (17) is connected with the storage hopper (11) through a feed pipe (15), and the cylindrical cavity (17) is connected with the neutralization tank (1) through a discharge pipe (16). A drive shaft (12) is rotatably arranged in the cylindrical cavity (17), and a diversion wheel (13) is sleeved on the drive shaft (12). The outer edge of the diversion wheel (13) forms a seal with the inner wall of the cylindrical cavity (17), and a liquid separation tank (14) is arranged on the diversion wheel (13).

2. The waste acid recovery and treatment device according to claim 1, characterized in that: The stirring mechanism (3) comprises a central stirring shaft (18), a stirring paddle (19), a stirring sleeve shaft (20) and a stirring rod (21); a mounting frame (7) is provided on the neutralization tank (1); the central stirring shaft (18) is rotatably mounted on the mounting frame (7) and extends downward into the neutralization tank (1); the stirring paddle (19) is mounted on the central stirring shaft (18); the stirring sleeve shaft (20) is rotatably sleeved on the central stirring shaft (18) and rotatably mounted in the neutralization tank; (1) top, the stirring rod (21) is arranged on the stirring sleeve shaft (20), the mounting frame (7) is rotatably provided with a rotating shaft (25), the rotating shaft (25) is sleeved with a first bevel gear (22), the central stirring shaft (18) is sleeved with a second bevel gear (23), the stirring sleeve shaft (20) is sleeved with a third bevel gear (24), and the second bevel gear (23) and the third bevel gear (24) are both meshed with the first bevel gear (22).

3. The waste acid recovery and treatment device according to claim 1, characterized in that: The solid-liquid separation tank (4) is provided with a solid-liquid separation chamber (26) and a liquid recovery chamber (27); the solid-liquid separation chamber (26) and the liquid recovery chamber (27) are connected through an opening; a filter screen (28) is provided at the opening; the solid-liquid separation chamber (26) and the neutralization tank (1) are connected through a discharge pipe (8); one side of the solid-liquid separation chamber (26) is connected to the outside through a discharge port (31); the liquid recovery chamber (27) is connected to the outside through a discharge pipe (32); a second valve (38) is provided on the discharge pipe (32); a transmission shaft (29) is rotatably provided in the solid-liquid separation chamber (26); a spiral blade (30) is sleeved on the transmission shaft (29).

4. The waste acid recovery and treatment device according to claim 2, characterized in that: The mounting frame (7) is provided with a first motor (33), the central stirring shaft (18) is provided on the output shaft of the first motor (33), the driving shaft (12) is sleeved with a first pulley (34), the rotating shaft (25) is sleeved with a second pulley (35), and the first pulley (34) and the second pulley (35) are sleeved with a transmission belt (36).

5. The waste acid recovery and treatment device according to claim 3, characterized in that: The solid-liquid separation tank (4) is provided with a second motor (37), and one end of the transmission shaft (29) is provided on the output shaft of the second motor (37).

6. The waste acid recovery and treatment device according to claim 1, characterized in that: The liquid separation troughs (14) are provided in a plurality of groups, and the plurality of groups of liquid separation troughs (14) are distributed in a ring array.

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