Acid-alkali waste liquid recovery treatment device

Abstract

The utility model relates to an acid-base waste liquid recycling device which comprises a recycling mechanism and an acid-base adding mechanism, the recycling mechanism comprises a first recycling tank, a second recycling tank, a first self-circulation loop and a second self-circulation loop, and the first self-circulation loop and the second self-circulation loop are both communicated with the first recycling tank and the second recycling tank; the acid-base adding mechanism is communicated with the recycling mechanism and can add pure acid or sodium carbonate into the recycling mechanism; according to the acid-alkali waste liquid recovery treatment device, the acid liquid in the first recovery tank can be input into the second recovery tank through the first self-circulation loop, and the alkali liquid in the second recovery tank can be input into the first recovery tank through the second self-circulation loop, so that the liquid in the first recovery tank and the liquid in the second recovery tank can be mixed; meanwhile, pure acid or sodium carbonate is added into the mixed liquid as required through the acid-base adding mechanism after mixing is completed so as to assist in achieving the acid-base neutralization effect, addition of the pure acid and sodium carbonate is reduced while the acid-base waste liquid is fully treated, and the production cost and resources are saved.

Description

Technical Field

[0001] This application relates to the technical field of waste liquid recovery and treatment, and particularly to an acid-base waste liquid recovery and treatment device. Background Art

[0002] In the dairy processing field, it is necessary to regularly clean the milk production pipelines (cleaning in place, abbreviated as CIP). In the prior art, the pipelines are cleaned by acid solution, alkali solution and hot water, and the acid-base waste liquid generated after cleaning is discharged to the sewage treatment plant for discharge treatment.

[0003] However, due to the large amount of liquid used in CIP cleaning in the dairy industry, the amount of acid-base waste liquid generated is also large. If the acid-base waste liquid is directly discharged into the sewage treatment plant, it will not only cause high costs for the enterprise in waste liquid treatment and discharge, increase production costs, but also cause waste of resources and certain environmental pollution risks. Summary of the Utility Model

[0004] Based on this, it is necessary to provide an acid-base waste liquid recovery and treatment device for the problems of increased production costs, waste of resources and environmental pollution risks mentioned above.

[0005] An acid-base waste liquid recovery and treatment device includes:

[0006] A recovery mechanism, including a first recovery tank, a second recovery tank, a first self-circulation loop and a second self-circulation loop; the first self-circulation loop connects the first recovery tank and the second recovery tank and is used to transport the liquid in the first recovery tank to the second recovery tank; the second self-circulation loop connects the second recovery tank and the first recovery tank and is used to transport the liquid in the second recovery tank to the first recovery tank;

[0007] An acid-base addition mechanism, which is connected to the recovery mechanism and can add pure acid or soda ash to the recovery mechanism.

[0008] In one embodiment, the acid-base addition mechanism is connected to the first recovery tank and / or the second recovery tank.

[0009] In one embodiment, the acid-base addition mechanism is provided with a first acid liquid addition pipeline and a first alkali liquid addition pipeline, and both the first acid liquid addition pipeline and the first alkali liquid addition pipeline are connected to the first recovery tank; the acid-base addition mechanism is further provided with a second acid liquid addition pipeline and a second alkali liquid addition pipeline, and both the second acid liquid addition pipeline and the second alkali liquid addition pipeline are connected to the second recovery tank.

[0010] In one embodiment, the first self - circulating loop includes a first circulating pipeline and a first liquid pumping pump. The first circulating pipeline connects the first recovery tank and the second recovery tank, and the first liquid pumping pump is arranged on the first circulating pipeline.

[0011] In one embodiment, the second self - circulating loop includes a second circulating pipeline and a second liquid pumping pump. The second circulating pipeline connects the second recovery tank and the first recovery tank, and the second liquid pumping pump is arranged on the second circulating pipeline.

[0012] In one embodiment, a liquid outlet pipe is provided on the first self - circulating loop; and / or, a liquid outlet pipe is provided on the second self - circulating loop.

[0013] In one embodiment, a heat - preservation protective sleeve is provided on the first recovery tank; and / or, a heat - preservation protective sleeve is provided on the second recovery tank.

[0014] In one embodiment, a lifting member is provided on the first recovery tank; and / or, a lifting member is provided on the second recovery tank.

[0015] In one embodiment, along the axial direction of the first recovery tank, the inner contour of the cross - section of the first recovery tank is circular; and / or, along the axial direction of the second recovery tank, the inner contour of the cross - section of the second recovery tank is circular.

[0016] In one embodiment, at least one recovery mechanism is provided.

[0017] The above - mentioned acid - base waste liquid recovery and treatment device can collect acid liquid and alkali liquid through the first recovery tank and the second recovery tank respectively. After collection, the acid liquid in the first recovery tank is input into the second recovery tank through the first self - circulating loop, and the alkali liquid in the second recovery tank is input into the first recovery tank through the second self - circulating loop, so that the liquids in the first recovery tank and the second recovery tank can be mixed under the cooperation of the first self - circulating loop and the second self - circulating loop, and then acid - base neutralization is carried out. At the same time, pure acid or pure alkali can be added to the mixed liquid as needed through the acid - base addition mechanism after the mixing is completed to assist in achieving the acid - base neutralization effect. While fully treating the acid - base waste liquid, the addition of pure acid and pure alkali is reduced. The neutralized liquid can be directly used as cleaning water, achieving the purpose of saving resources while saving production costs and reducing the risk of environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the acid - base waste liquid recovery and treatment device according to some embodiments of the present application.

[0019] Figure 2 It is a schematic structural diagram of the acid - base waste liquid recovery and treatment device according to some embodiments of the present application from another perspective.

[0020] Reference Signs:

[0021] 1. Recycling mechanism;

[0022] 11. First recycling tank;

[0023] 12. Second recycling tank;

[0024] 13. First self - circulation loop; 131. First circulation pipeline; 132. First liquid extraction pump;

[0025] 14. Second self - circulation loop; 141. Second circulation pipeline; 142. Second liquid extraction pump;

[0026] 15. Liquid outlet pipe;

[0027] 2. Acid - base addition mechanism; 21. First acid addition pipeline; 22. First alkali addition pipeline; 23. Second acid addition pipeline; 24. Second alkali addition pipeline;

[0028] 3. Thermal insulation protective sleeve;

[0029] 4. Lifting member. Detailed Embodiments

[0030] To make the above - mentioned objects, features, and advantages of the present application more obvious and understandable, the following will describe in detail the specific embodiments of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0031] In the description of the present application, it should be understood that if terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application 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 thus should not be construed as a limitation of the present application.

[0032] In addition, if the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0033] In this application, unless otherwise clearly specified and limited, if terms such as "installed", "connected", "linked", "fixed", etc. appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] In this application, unless otherwise clearly specified and limited, if there is a description such as a first feature being "on" or "under" a second feature, its meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath", and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower horizontal height than the second feature.

[0035] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If so, the terms "vertical", "horizontal", "up", "down", "left", "right", and similar expressions used in this application are only for illustrative purposes and do not represent the only implementation.

[0036] Refer to Figure 1 and Figure 2 , an embodiment of this application provides an acid-base waste liquid recycling and treatment device, including a recycling mechanism 1 and an acid-base adding mechanism 2. Among them, the recycling mechanism 1 is used to recycle the acid-base waste liquid generated during CIP cleaning. The acid-base adding mechanism 2 is used to add pure acid or soda ash into the recycling mechanism 1 to assist the recycling mechanism 1 in treating the acid-base waste liquid, so that the acid-base waste liquid in the recycling mechanism 1 can be effectively neutralized.

[0037] Specifically when setting up, the recycling mechanism 1 includes a first recycling tank 11, a second recycling tank 12, a first self - circulation loop 13 and a second self - circulation loop 14. Liquid inlet pipes for the acid - base waste liquid generated during CIP cleaning are provided on both the first recycling tank 11 and the second recycling tank 12.

[0038] The first self - circulation loop 13 connects the first recycling tank 11 and the second recycling tank 12 and is used to transport the liquid in the first recycling tank 11 into the second recycling tank 12, so that the liquid in the first recycling tank 11 can be mixed with the liquid in the second recycling tank 12, and then acid - base neutralization can be carried out. The second self - circulation loop 14 connects the second recycling tank 12 and the first recycling tank 11 and is used to transport the liquid in the second recycling tank 12 into the first recycling tank 11, so that the liquid in the second recycling tank 12 can be mixed with the liquid in the first recycling tank 11, and then acid - base neutralization can be carried out.

[0039] Refer to Figure 1 and Figure 2 The acid - base addition mechanism 2 is connected to the recycling mechanism 1 and can add pure acid or soda ash into the recycling mechanism 1. Specifically, the acid - base addition mechanism 2 is connected to the first recycling tank 11 and / or the second recycling tank 12 and can add pure acid or soda ash into the first recycling tank 11 and / or the second recycling tank 12 to assist in achieving the acid - base neutralization effect of the mixed liquid in the first recycling tank 11 and the second recycling tank 12.

[0040] More specifically, in one embodiment, the acid - base addition mechanism 2 is connected to the first recycling tank 11 and can add soda ash into the first recycling tank 11 after determining that the mixed liquid in the first recycling tank 11 and the second recycling tank 12 is acidic, so as to assist in achieving the acid - base neutralization effect of the mixed liquid in the first recycling tank 11 and the second recycling tank 12.

[0041] In another embodiment, the acid - base addition mechanism 2 is connected to the second recycling tank 12 and can add pure acid into the first recycling tank 11 after determining that the mixed liquid in the first recycling tank 11 and the second recycling tank 12 is alkaline, so as to assist in achieving the acid - base neutralization effect of the mixed liquid in the first recycling tank 11 and the second recycling tank 12.

[0042] In the embodiment of the present application, the acid - base addition mechanism 2 is connected to the first recycling tank 11 and the second recycling tank 12 and can add pure acid into the first recycling tank 11 and the second recycling tank 12 simultaneously after determining that the mixed liquid in the first recycling tank 11 and the second recycling tank 12 is alkaline, so as to assist in achieving the acid - base neutralization effect of the mixed liquid in the first recycling tank 11 and the second recycling tank 12.

[0043] In addition, sampling ports are provided on both the first recovery tank 11 and the second recovery tank 12, so that the staff can sample the mixed liquid in the first recovery tank 11 and the second recovery tank 12 through the sampling ports, and then detect the pH value of the mixed liquid in the first recovery tank 11 and the second recovery tank 12.

[0044] In summary, when the acid-base waste liquid recovery and treatment device of the present application is in use, the acid waste liquid generated during CIP cleaning can be input into the first recovery tank 11, and the alkali waste liquid generated during CIP cleaning can be input into the first recovery tank 11. After the input is completed, the acid liquid in the first recovery tank 11 is input into the second recovery tank 12 through the first self-circulation loop 13, and the alkali liquid in the second recovery tank 12 is input into the first recovery tank 11 through the second self-circulation loop 14, so that the liquids in the first recovery tank 11 and the second recovery tank 12 can be mixed under the cooperation of the first self-circulation loop 13 and the second self-circulation loop 14, and then acid-base neutralization is carried out. After mixing for a period of time, the pH value of the mixed liquid can be detected, and after determining that the mixed liquid is alkaline, pure acid is added to the first recovery tank 11 and the second recovery tank 12 through the acid-base addition mechanism 2. After determining that the mixed liquid is alkaline, pure acid is added to the first recovery tank 11 and the second recovery tank 12 through the acid-base addition mechanism 2 to assist in achieving the acid-base neutralization effect. Since the acid waste liquid and the alkali waste liquid generated during CIP cleaning are first self-mixed in the recovery mechanism 1, the acid-base addition mechanism 2 can effectively save the amount of pure acid or soda ash to be added subsequently, so that the acid-base waste liquid recovery and treatment device of the present application can reduce the amount of pure acid or soda ash to be added by the acid-base addition mechanism 2 while fully treating the acid-base waste liquid. The liquid generated after the acid waste liquid and the alkali waste liquid are neutralized can be directly used as cleaning water subsequently, so that the acid-base waste liquid recovery and treatment device of the present application can save production costs, achieve the purpose of saving resources, and reduce the risk of environmental pollution.

[0045] Refer to Figure 1 and Figure 2 In one embodiment, a first acid liquid addition pipeline 21 and a first alkali liquid addition pipeline 22 are provided on the acid-base addition mechanism 2. Both the first acid liquid addition pipeline 21 and the first alkali liquid addition pipeline 22 are communicated with the first recovery tank 11, so that the acid-base addition mechanism 2 can add pure acid into the first recovery tank 11 through the first acid liquid addition pipeline 21, or add soda ash into the first recovery tank 11 through the first alkali liquid addition pipeline 22 to assist in acid-base neutralization of the mixed liquid in the first recovery tank 11.

[0046] The acid-base addition mechanism 2 is also provided with a second acid solution addition pipeline 23 and a second alkali solution addition pipeline 24. Both the second acid solution addition pipeline 23 and the second alkali solution addition pipeline 24 are connected to the second recovery tank 12, so that the acid-base addition mechanism 2 can add pure acid into the second recovery tank 12 through the second acid solution addition pipeline 23, or add soda ash into the second recovery tank 12 through the second alkali solution addition pipeline 24, to assist the mixed liquid in the second recovery tank 12 to carry out acid-base neutralization.

[0047] Refer to Figure 1 and Figure 2 , in one embodiment, the first self-circulation loop 13 includes a first circulation pipeline 131 and a first liquid pumping pump 132. The first circulation pipeline 131 connects the first recovery tank 11 and the second recovery tank 12. The first liquid pumping pump 132 is arranged on the first circulation pipeline 131, so that the first liquid pumping pump 132 can assist the first circulation pipeline 131 to pump the liquid in the first recovery tank 11 into the second recovery tank 12.

[0048] The second self-circulation loop includes a second circulation pipeline 141 and a second liquid pumping pump 142. The second circulation pipeline 141 connects the second recovery tank 12 and the first recovery tank 11. The second liquid pumping pump 142 is arranged on the second circulation pipeline 141, so that the second liquid pumping pump 142 can assist the second circulation pipeline 141 to pump the liquid in the second recovery tank 12 into the first recovery tank 11.

[0049] Specifically, the first recovery tank 11 is provided with a first liquid outlet and a first liquid inlet. The second recovery tank 12 is provided with a second liquid outlet and a second liquid inlet. One end of the first circulation pipeline 131 is arranged on the first recovery tank 11 through the first liquid outlet and is connected to the first recovery tank 11. The other end of the first circulation pipeline 131 is arranged on the second recovery tank 12 through the second liquid inlet and is connected to the second recovery tank 12. When the first liquid pumping pump 132 is working, it can give a suction force to the first recovery tank 11 through the first circulation pipeline 131, so that the liquid in the first recovery tank 11 is input into the second recovery tank 12 through the first circulation pipeline 131.

[0050] One end of the second circulation pipeline 141 is arranged on the second recovery tank 12 through the second liquid outlet and is connected to the second recovery tank 12. The other end of the second circulation pipeline 141 is arranged on the first recovery tank 11 through the first liquid inlet and is connected to the first recovery tank 11. When the second liquid pumping pump 142 is working, it can give a suction force to the second recovery tank 12 through the second circulation pipeline 141, so that the liquid in the second recovery tank 12 is input into the first recovery tank 11 through the second circulation pipeline 141.

[0051] It can be understood that both the first liquid pumping pump 132 and the second liquid pumping pump 142 are selected as self-priming pumps.

[0052] Refer toFigure 1 and Figure 2 In one embodiment, a liquid outlet pipe 15 is provided on the first self-circulation loop 13; and / or, a liquid outlet pipe 15 is provided on the second self-circulation loop 14. Specifically, in one embodiment, a liquid outlet pipe 15 is provided on the first self-circulation loop 13, and the liquid after acid-base neutralization is output to a specified position through the liquid outlet pipe 15 for use as cleaning water. In another embodiment, a liquid outlet pipe 15 is provided on the second self-circulation loop 14, and the liquid after acid-base neutralization is output to a specified position through the liquid outlet pipe 15 for use as cleaning water. In still another embodiment, liquid outlet pipes 15 are provided on both the first self-circulation loop 13 and the second self-circulation loop 14, and the liquid after acid-base neutralization can be output to a specified position through the two liquid outlet pipes 15 simultaneously for use as cleaning water.

[0053] In one embodiment, a heat preservation protective sleeve 3 is provided on the first recovery tank 11; and / or, a heat preservation protective sleeve 3 is provided on the second recovery tank 12. Specifically, in the embodiments of the present application, heat preservation protective sleeves 3 are sleeved on the outer surfaces of the first recovery tank 11 and the second recovery tank 12, so that both the first recovery tank 11 and the second recovery tank 12 can be heat-preserved through the heat preservation protective sleeves 3 thereon, reducing the influence of the outdoor environment on the first recovery tank 11 and the second recovery tank 12.

[0054] Refer to Figure 1 and Figure 2 In one embodiment, a hoisting member 4 is provided on the first recovery tank 11; and / or, a hoisting member 4 is provided on the second recovery tank 12. Specifically, in the embodiments of the present application, hoisting members 4 are provided on both the first recovery tank 11 and the second recovery tank 12, so as to facilitate the disassembly, assembly and movement of the dairy processing wastewater recovery system at any time according to the needs of the plant construction.

[0055] In one embodiment, along the axial direction of the first recovery tank 11, the inner contour of the cross-section of the first recovery tank 11 is circular; and / or, along the axial direction of the second recovery tank 12, the inner contour of the cross-section of the second recovery tank 12 is circular. Specifically, in the embodiments of the present application, both the first recovery tank 11 and the second recovery tank 12 are in a barrel structure, and the inner contours of their cross-sections are both circular. Compared with other shapes, a circle is more convenient for cleaning, so through the above settings, the interiors of the first recovery tank 11 and the second recovery tank 12 can be more easily cleaned.

[0056] In one embodiment, at least one recovery mechanism 1 is provided, so that when one of the recovery mechanisms 1 is in use, other recovery mechanisms 1 can continue to collect the acid-base waste liquid generated during CIP cleaning.

[0057] Specifically, in the embodiments of the present application, there are two recovery mechanisms 1. The acidic waste liquid generated during CIP cleaning can be first input into one of the recovery mechanisms 1. When the collected amount reaches the set amount, this recovery mechanism 1 stops collecting and starts mixing and neutralizing the collected acid-base waste liquid, and the acid-base waste liquid generated during CIP cleaning is input into the other recovery mechanism 1. The cooperation of the two recovery mechanisms 1 ensures the efficiency of waste liquid treatment.

[0058] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0059] The above-described embodiments merely represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. An acid-base waste liquid recovery and treatment device, characterized in that, Including: A recycling mechanism, including a first recycling tank, a second recycling tank, a first self-circulation loop, and a second self-circulation loop; the first self-circulation loop connects the first recycling tank and the second recycling tank and is used to transport the liquid in the first recycling tank to the second recycling tank; the second self-circulation loop connects the second recycling tank and the first recycling tank and is used to transport the liquid in the second recycling tank to the first recycling tank. An acid-base adding mechanism, which is connected to the recycling mechanism and can add pure acid or soda ash to the recycling mechanism.

2. The acid-base waste liquid recovery and treatment device according to claim 1, wherein The acid-base adding mechanism is connected to the first recycling tank and / or the second recycling tank.

3. The acid-base waste liquid recovery and treatment device according to claim 2, wherein The acid-base adding mechanism is provided with a first acid liquid adding pipeline and a first alkali liquid adding pipeline, both of which are connected to the first recycling tank; the acid-base adding mechanism is also provided with a second acid liquid adding pipeline and a second alkali liquid adding pipeline, both of which are connected to the second recycling tank.

4. The acid-base waste liquid recovery and treatment device according to claim 1, wherein The first self-circulation loop includes a first circulation pipeline and a first liquid pumping pump, the first circulation pipeline connects the first recycling tank and the second recycling tank, and the first liquid pumping pump is arranged on the first circulation pipeline.

5. The acid-base waste liquid recovery and treatment device according to claim 1, characterized in that, The second self-circulation loop includes a second circulation pipeline and a second liquid pumping pump, the second circulation pipeline connects the second recycling tank and the first recycling tank, and the second liquid pumping pump is arranged on the second circulation pipeline.

6. The acid-base waste liquid recovery and treatment device according to claim 1, wherein A liquid outlet pipe is provided on the first self-circulation loop; and / or, a liquid outlet pipe is provided on the second self-circulation loop.

7. The acid-base waste liquid recovery and treatment device according to claim 1, wherein, A heat preservation protective sleeve is provided on the first recycling tank; and / or, a heat preservation protective sleeve is provided on the second recycling tank.

8. The acid-base waste liquid recovery and treatment device according to claim 1, characterized in that, A lifting member is provided on the first recycling tank; and / or, a lifting member is provided on the second recycling tank.

9. The acid-base waste liquid recovery and treatment device according to claim 1, wherein Along the axial direction of the first recycling tank, the inner contour of the cross-section of the first recycling tank is circular; and / or, along the axial direction of the second recycling tank, the inner contour of the cross-section of the second recycling tank is circular.

10. The acid-base waste liquid recovery and treatment device according to claim 1, wherein At least one recycling mechanism is provided.

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