A mixed acid membrane separation waste acid recovery device

Abstract

The utility model is suitable for waste acid recovery technical field provides a kind of waste acid recovery device for mixed acid membrane separation, a kind of waste acid recovery device for mixed acid membrane separation, it includes: device main body;Control panel is set on the device main body outer wall, the top of the device main body swing installation has sealing cover, the bottom of the device main body is provided with equipment bin, the upper portion of equipment bin is provided with deflector, the inside installation of equipment bin has drive assembly;Separation assembly is communicated in the inside of the device main body, the inside of the device main body is connected with separation tank by separation assembly, the top of separation assembly is located in separation tank, the outer wall of separation tank is provided with waste gas port;Heating cavity is set in the inner wall of separation tank, heating cavity is installed with heating pipe in its inside.This scheme can solve the problem that flocculating agent cannot be quickly mixed and reacted with waste liquid, waste liquid is unevenly heated when heated and concentrated, and evaporation concentration efficiency is low.

Description

Technical Field

[0001] This utility model belongs to the field of waste acid recovery technology, and in particular relates to a waste acid recovery device for mixed acid membrane separation. Background Technology

[0002] In the production processes of industries such as chemical engineering, metallurgy, electroplating, and electronics, mixed acids (such as nitric acid / hydrofluoric acid, sulfuric acid / hydrochloric acid, etc.) are often used for metal surface treatment, etching, or catalytic reactions. These processes generate large amounts of waste acid, which not only contains unreacted acid but may also be mixed with metal ions, organic matter, and other impurities. Direct discharge of such waste acid not only wastes resources but also seriously pollutes the environment.

[0003] Chinese patent discloses a waste acid recovery device, publication number CN 211367300 U. The device includes a waste acid settling tank, with a settling tank support leg fixedly installed at the lower corner; a waste floc storage chamber fixedly installed at the lower middle of the waste acid settling tank; a waste floc discharge pipe fixedly installed on the lower right side of the waste floc storage chamber; a drain valve fixedly installed at the middle of the waste floc discharge pipe; a return water pipe fixedly installed on the upper side of the waste acid settling tank; a return water valve fixedly installed on the left side of the return water pipe; a flocculant addition port installed on the upper left side of the waste acid settling tank; a protective cover installed above the flocculant addition port; a filter screen installed on the inner wall of the waste acid settling tank; and a water inlet pipe fixedly installed on the upper right side of the back of the waste acid settling tank. The overall device is portable, easy to operate, feature-rich, and has high stability and practicality, making it worthy of promotion.

[0004] However, when the existing devices are in use, the flocculant cannot be quickly stirred and mixed with the waste liquid, and the waste liquid is heated unevenly during heating and concentration, resulting in low evaporation and concentration efficiency. Utility Model Content

[0005] This invention provides a waste acid recovery device for mixed acid membrane separation, which aims to solve the problem of increasing the reaction rate between waste liquid and flocculant and accelerating the evaporation and concentration speed of waste liquid.

[0006] This utility model is implemented as follows: a waste acid recovery device for mixed acid membrane separation includes: a device body; a control panel disposed on the outer wall of the device body, a sealing cover movably installed at the top of the device body, an equipment compartment disposed at the bottom of the device body, a guide plate disposed above the equipment compartment, and a drive assembly installed inside the equipment compartment; a separation assembly connected to the inside of the device body, a separation tank connected to the inside of the device body via the separation assembly, the separation assembly being located at the top of the separation tank, and a waste gas port disposed on the outer wall of the separation tank; and a heating chamber disposed on the inner wall of the separation tank, with a heating tube installed inside the heating chamber for rapidly heating the waste liquid inside the device body.

[0007] Preferably, the separation tank includes: a water pump installed at the top of the separation tank, one end of the water pump being connected to an outlet pipe that is connected to the interior of the separation tank, and an input end of the water pump being connected to a suction pipe; a suction pipe connected to the output end of the water pump, one end of the suction pipe being connected to the bottom end of the main body of the device, and a filter screen being provided at the port of the suction pipe.

[0008] Preferably, the drive assembly includes: a drive motor mounted at the bottom of the device body, the drive shaft of the drive motor extending through the equipment compartment into the interior of the device body and connected to a rotating shaft, the outer wall of the rotating shaft being equipped with stirring blades at equal intervals; a drive gear disposed on the outer wall of the rotating shaft, stirring cones being symmetrically and movably mounted on both sides of the rotating shaft, the bottom end of each stirring cone being provided with a driven gear, the driven gear and the drive gear meshing and transmitting power to each other.

[0009] Preferably, the heating tube has a spiral structure and is uniformly wrapped around the inside of the heating cavity.

[0010] Preferably, a guide plate is provided above the equipment compartment, and the guide plate has a sloping cut structure with varying heights.

[0011] Preferably, the filter screen is located at the lower part of the guide plate, and the outer wall of the filter screen is uniformly provided with filter holes.

[0012] Preferably, the stirring blade is located at the center of the device body, and the stirring cone is located on both sides of the rotating shaft.

[0013] Preferably, a valve is installed at the bottom of the separator, and one end of the valve is connected to the interior of the separator.

[0014] Compared with related technologies, the waste acid recovery device for mixed acid membrane separation provided by this utility model has the following beneficial effects: By using the set drive motor, rotating shaft, and stirring cone, the sealing cover is opened, and the flocculant in the waste liquid box is poured into the interior of the main body of the device. The drive motor is started to drive the stirring blade to rotate clockwise, and then the drive motor drives the drive gear to rotate. The drive gear and the driven gear mesh to drive the stirring cone to rotate counterclockwise. The stirring blade and the stirring cone rotate in opposite directions, which can accelerate the mixing of flocculant and waste liquid, improve the reaction speed, and quickly separate and settle the flocculent matter in the waste liquid to the bottom.

[0015] The waste liquid inside the main body of the device is introduced into the separation tank through the separation components, heating chamber and heating pipe. The filter screen filters out flocculent matter when the waste liquid is extracted. The waste liquid introduced into the separation tank is rapidly heated by the heating chamber to raise the internal temperature and cause the waste liquid to evaporate and concentrate. Attached Figure Description

[0016] Figure 1 This is a frontal cross-sectional view of the present invention. Figure 2 This is a frontal cross-sectional view of the present invention. Figure 3 This is a schematic diagram of the guide plate structure of this utility model; Figure 4 This is a schematic diagram of the drive component structure of this utility model; Figure 5 This is a schematic diagram of the structure of the separation component of this utility model.

[0017] In the diagram: 1. Main body of the device; 2. Control panel; 3. Sealing cover; 4. Separation tank; 5. Separation assembly; 501. Water pump; 502. Liquid extraction pipe; 503. Filter screen; 504. Liquid outlet pipe; 6. Exhaust gas outlet; 7. Drive assembly; 701. Drive motor; 702. Rotating shaft; 703. Drive gear; 704. Stirring blade; 705. Driven gear; 706. Stirring cone; 8. Heating chamber; 9. Heating tube; 10. Valve; 11. Baffle plate; 12. Equipment compartment. Detailed Implementation

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0019] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments. Example 1

[0020] A preferred embodiment of the waste acid recovery device for mixed acid membrane separation provided by this utility model is, for example... Figure 1 , Figure 2 and Figure 4 As shown: A waste acid recovery device for mixed acid membrane separation includes: a device body 1; a control panel 2 disposed on the outer wall of the device body 1, a sealing cover 3 movably installed on the top of the device body 1, an equipment compartment 12 disposed at the bottom of the device body 1, a guide plate 11 disposed above the equipment compartment 12, a drive assembly 7 installed inside the equipment compartment 12; a separation assembly 5 connected inside the device body 1, a separation tank 4 connected inside the device body 1 via the separation assembly 5, the separation assembly 5 being located at the top of the separation tank 4, an exhaust port 6 disposed on the outer wall of the separation tank 4; a heating chamber 8 disposed on the inner wall of the separation tank 4, a heating pipe 9 installed inside the heating chamber 8, the heating pipe 9 being used for rapid heating of the waste liquid inside the device body 1.

[0021] It should be noted that some existing waste acid recovery devices for mixed acid membrane separation still have certain shortcomings in actual use. The mixing speed of flocculant and waste liquid inside the device is slow, and it cannot be quickly heated and distilled to separate, which affects the rate.

[0022] In this embodiment, the sealing cover 3 is opened and the flocculant and waste liquid are poured into the interior of the device body 1. The drive component 7 is started to make the waste liquid and flocculant mix and react quickly, and the flocculent in the waste liquid quickly settles to the bottom. Then, the liquid is filtered through the separation component 5 and drawn from the interior of the device body 1 into the interior of the separation tank 4. The interior of the separation tank 4 is then quickly heated through the heating chamber 8 and the heating pipe 9 to make it evaporate and concentrate. The waste gas generated by evaporation can be discharged through the waste gas port 6. Then, the concentrated waste liquid is taken out and recycled through the valve 10.

[0023] In a further preferred embodiment of this utility model, the drive assembly 7 includes: a drive motor 701 mounted on the bottom of the device body 1, the drive shaft of the drive motor 701 extending through the equipment compartment 12 to the interior of the device body 1 and connected to a rotating shaft 702, and stirring blades 704 evenly spaced on the outer wall of the rotating shaft 702; a drive gear 703 disposed on the outer wall of the rotating shaft 702, and stirring cones 706 symmetrically and movably mounted on both sides of the rotating shaft 702, each stirring cone 706 having a driven gear 705 at its bottom end, the driven gear 705 and the drive gear 703 meshing and transmitting power to each other.

[0024] In this embodiment, the drive motor 701 drives the rotating shaft 702 and the drive gear 703 to rotate clockwise. The drive gear 703 and the stirring blade 704 mesh and drive the stirring blade 704 to drive the stirring cone 706 to rotate counterclockwise. The counterclockwise rotation of the stirring cone 706 guides the flow, allowing the flocculant and waste liquid to be stirred and circulated from bottom to top. At the same time, the clockwise rotation of the stirring blade 704 accelerates the mixing speed of the waste liquid and flocculant, allowing the flocculent impurities in the waste liquid to quickly fuse and precipitate with the flocculant.

[0025] In a further preferred embodiment of the present invention, the heating tube 9 has a spiral structure and is uniformly surrounded inside the heating cavity 8.

[0026] In this embodiment, the stirring blade 704 is located at the center inside the main body 1 of the device, and the stirring cone 706 is located on both sides of the rotating shaft 702.

[0027] In a further preferred embodiment of this invention, the flow is guided by the stirring cone 706, while the stirring blade 704 stirs the liquid in the center, thereby accelerating the mixing speed of the flocculant and the waste liquid and ensuring that they are fully mixed. Example 2

[0028] Based on Example 1, a preferred embodiment of the waste acid recovery device for mixed acid membrane separation provided by this utility model is as follows: Figure 1 , Figure 3 and Figure 5 As shown:

[0029] In this embodiment, the separation tank 4 includes: a water pump 501 installed at the top of the separation tank 4, one end of the water pump 501 is connected to an outlet pipe 504, the outlet pipe 504 is connected to the interior of the separation tank 4, the input end of the water pump 501 is connected to a suction pipe 502; the suction pipe 502 is connected to the output end of the water pump 501, one end of the suction pipe 502 is connected to the bottom end of the device body 1, and a filter screen 503 is provided at the port of the suction pipe 502.

[0030] In a further preferred embodiment of this utility model, the water pump 501 is started to draw the waste liquid from the main body 1 into the interior of the separation tank 4 through the liquid extraction pipe 502 and the liquid outlet pipe 504. At the same time, the flocculent matter in the waste liquid is filtered through the filter screen 503 to improve its purity during high-temperature evaporation and concentration.

[0031] In this embodiment, the heating tube 9 has a spiral structure and is uniformly surrounded inside the heating cavity 8.

[0032] In a further preferred embodiment of this invention, the heating tubes 9 are spirally and evenly distributed inside the heating chamber 8, which can quickly and evenly raise the temperature inside the separation tank 4, avoid uneven heating, and improve the evaporation and concentration speed.

[0033] In this embodiment, a guide plate 11 is provided above the equipment compartment 12, and the guide plate 11 has a sloping cut structure with varying heights.

[0034] In a further preferred embodiment of this utility model, the waste liquid is guided by the height difference of the guide plate 11, which facilitates the separation component 5 to pump the waste liquid into the interior of the separation tank 4, and avoids the accumulation of liquid at the bottom of the device body 1.

[0035] In this embodiment, the filter screen 503 is located at the lower part of the guide plate 11, and the outer wall of the filter screen 503 is uniformly provided with filter holes.

[0036] In a further preferred embodiment of this utility model, the filter holes provided on the outer wall of the filter screen 503 enable the separation component 5 to extract the waste liquid and separate it from the flocculent material at the same time, thereby preventing impurities from being drawn into the interior of the separation tank 4.

[0037] In this embodiment, a valve 10 is installed at the bottom of the separation tank 4, and one end of the valve 10 is connected to the interior of the separation tank 4.

[0038] In a further preferred embodiment of this utility model, the waste liquid concentrated by internal evaporation is conveniently recycled through valve 10.

[0039] In summary, when using this device, open the sealing cover 3 and pour the flocculant from the waste liquid box into the interior of the device body 1. Close the sealing cover 3 and turn on the drive component 7 through the control panel 2. Use the drive component 7 to stir and guide the flocculant in the waste liquid box to ensure thorough mixing. After mixing is complete, turn off the drive component 7. After the waste liquid and flocculant are stirred and mixed, the impurities and flocculant mix and clump together and precipitate. Then, filter and extract the waste liquid from the interior of the device body 1 through the separation component 5. Quickly heat the heating chamber 8 through the heating pipe 9, and then use the heat conduction of the heating chamber 8 to uniformly heat the interior of the separation tank 4, so that the waste liquid is concentrated through high-temperature evaporation. Finally, discharge the waste gas through the exhaust port 6 and discharge the concentrated waste liquid through the valve 10 for recycling.

[0040] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0041] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0042] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A waste acid recovery device for mixed acid membrane separation, characterized in that, include: Device body (1); A control panel (2) is provided on the outer wall of the main body (1) of the device. A sealing cover (3) is movably installed on the top of the main body (1). An equipment compartment (12) is provided at the bottom of the main body (1). A guide plate (11) is provided above the equipment compartment (12). A drive assembly (7) is installed inside the equipment compartment (12). A separation component (5) is connected inside the main body (1) of the device. A separation tank (4) is connected inside the main body (1) through the separation component (5). The separation component (5) is located at the top of the separation tank (4). An exhaust port (6) is provided on the outer wall of the separation tank (4). A heating chamber (8) is provided on the inner wall of the separation tank (4), and a heating tube (9) is installed inside the heating chamber (8). The heating tube (9) is used to rapidly heat the waste liquid inside the main body (1) of the device. The separation tank (4) includes: A water pump (501) is installed at the top of the separation tank (4). One end of the water pump (501) is connected to a liquid outlet pipe (504), which is connected to the interior of the separation tank (4). The input end of the water pump (501) is connected to a liquid extraction pipe (502). One end of the liquid extraction tube (502) is connected to the bottom end of the device body (1), and a filter screen (503) is provided at the port of the liquid extraction tube (502). The drive assembly (7) includes: A drive motor (701) is mounted at the bottom of the main body (1) of the device. The drive shaft of the drive motor (701) extends through the equipment compartment (12) to the inside of the main body (1) of the device and is connected to a rotating shaft (702). Stirring blades (704) are installed at equal intervals on the outer wall of the rotating shaft (702). The driving gear (703) is set on the outer wall of the rotating shaft (702). The two sides of the rotating shaft (702) are symmetrically and movably mounted with stirring cones (706). The bottom end of each stirring cone (706) is provided with a driven gear (705). The driven gear (705) and the driving gear (703) mesh with each other for transmission.

2. The waste acid recovery device for mixed acid membrane separation as described in claim 1, characterized in that, The heating tube (9) has a spiral structure and is uniformly surrounded inside the heating cavity (8).

3. The waste acid recovery device for mixed acid membrane separation as described in claim 1, characterized in that, A guide plate (11) is provided above the equipment compartment (12), and the guide plate (11) has a sloping surface structure with a height difference.

4. The waste acid recovery device for mixed acid membrane separation as described in claim 1, characterized in that, The filter screen (503) is located at the bottom of the guide plate (11), and the outer wall of the filter screen (503) is uniformly provided with filter holes.

5. The waste acid recovery device for mixed acid membrane separation as described in claim 1, characterized in that, The stirring blade (704) is located at the center inside the main body (1) of the device, and the stirring cone (706) is located on both sides of the rotating shaft (702).

6. The waste acid recovery device for mixed acid membrane separation as described in claim 1, characterized in that, A valve (10) is installed at the bottom of the separation tank (4), and one end of the valve (10) is connected to the interior of the separation tank (4).

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