Nanofiltration acid adding mixer

Abstract

The utility model relates to a nanofiltration acid adding mixer. The mixer comprises a mixer pipe body, the mixer pipe body is hollow, and a liquid inlet and a liquid outlet are formed in the two ends of the mixer pipe body respectively; an acid adding opening is formed in one side, close to the liquid inlet, of the mixer pipe body; the liquid inlet, the liquid outlet and the acid adding port are respectively provided with a connecting flange; and a spiral blade for mixing water and acid is arranged in the mixer pipe body. Compared with the prior art, the device has the advantages of sufficient and uniform mixing of water and acid, stable PH value, high corrosion resistance and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of copper foil wastewater membrane treatment, in particular to a nanofiltration acid mixer. Background Art

[0002] For the membrane treatment of copper foil wastewater, a nanofiltration system is required for acid treatment. Currently, when adding acid to the nanofiltration system, the acid is directly added to the nanofiltration raw water tank. Due to the short hydraulic retention time, the acid and water cannot be fully mixed, resulting in large fluctuations in the pH value of the nanofiltration influent and easy fouling of the membrane. If a stirrer is directly added to the raw water tank, it will cause an increase in energy consumption, and the mixing effect cannot reach the expected effect.

[0003] Therefore, how to design and implement a nanofiltration acid mixer with good mixing effect and stable pH value has become a technical problem to be solved. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a nanofiltration acid mixer to overcome the defects of the existing technologies described above.

[0005] The purpose of the utility model can be realized by the following technical solutions:

[0006] A nanofiltration acid mixer, the mixer includes a mixer body; the interior of the mixer body is hollow, with an inlet and an outlet at both ends respectively; a acid addition port is arranged on one side of the mixer body close to the inlet; connection flanges are arranged at the inlet, the outlet and the acid addition port; a spiral blade for mixing water and acid is arranged inside the mixer body.

[0007] Further, the mixer body, the inlet, the outlet and the acid addition port are integrally injection-molded; the mixer body is a pipe body made of fiberglass.

[0008] Further, the inlet is connected to the main water inlet pipe through a connection flange; the acid addition port is connected to the acid inlet pipe through a connection flange; the outlet is connected to the nanofiltration system through a connection flange.

[0009] Further, a nanofiltration inlet water pump is connected to the main water inlet pipe; an acid addition pump is connected to the acid inlet pipe; a pH detector is also connected to the outlet; the nanofiltration inlet water pump, the acid addition pump and the pH detector are all connected to a PC through signal lines.

[0010] Compared with the existing technologies, the utility model has the following advantages:

[0011] (1) The interior of the mixer body of the present utility model is provided with spiral blades, enabling water and acid to be fully and evenly mixed during movement without the need for external force and without adding a stirrer, thus saving energy consumption. Through the program set by the PC, it receives the pH value transmitted by the pH detector, thereby controlling the start and stop times of the nanofiltration feed water pump and the acid addition pump, adjusting the opening of the acid addition pump, and stabilizing the pH value of the nanofiltration feed water at a certain value, with high mixing efficiency and stable pH value.

[0012] (2) The present utility model is made of glass material, with strong corrosion resistance and long service life. It is connected to the water inlet pipe, acid inlet pipe, and nanofiltration system through connecting flanges, featuring a simple structure and convenient and quick disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram provided by the present utility model;

[0014] Figure 2 is a schematic structural diagram of the spiral blade provided by the present utility model;

[0015] Figure 3 is a schematic structural diagram of the connecting flange provided by the present utility model.

[0016] The reference numerals in the drawings are shown as:

[0017] 1. Mixer body; 2. Liquid inlet; 3. Liquid outlet; 4. Acid addition port; 5. Connecting flange; 6. Spiral blade. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. The components of the embodiments of the present utility model usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0020] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0021] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is customarily placed during use. It 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.

[0022] It should be noted that the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0023] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging vertically, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but may be slightly inclined.

[0024] Embodiment

[0025] As Figures 1 to 3 shown, a nanofiltration acid addition mixer, the mixer includes a mixer body 1; the inside of the mixer body 1 is hollow, and the two ends are respectively a liquid inlet 2 and a liquid outlet 3; a acid addition port 4 is arranged on one side of the mixer body 1 close to the liquid inlet 2; connection flanges 5 are arranged on the liquid inlet 2, the liquid outlet 3 and the acid addition port 4; a spiral blade 6 is arranged inside the mixer body 1 for mixing water and acid, so that water and acid can be fully and evenly mixed during movement, without the need for external force and without adding a stirrer, saving energy consumption.

[0026] The mixer body 1, the liquid inlet 2, the liquid outlet 3 and the acid addition port 4 are integrally injection molded, which is convenient for manufacturing and has a simple structure.

[0027] In order to prevent corrosion by acid, enhance corrosion resistance and extend the service life, the mixer body 1 is made of fiberglass material.

[0028] In order to facilitate quick disassembly and installation, the liquid inlet 2 is connected to the main water inlet pipe through the connection flange 5; the acid addition port 4 is connected to the acid inlet pipe through the connection flange 5; the liquid outlet 3 is connected to the nanofiltration system through the connection flange 5.

[0029] To control the stability of the pH value, a feed water main pipe is connected with a feed water pump; an acid inlet pipe is connected with an acid adding pump; the liquid outlet 3 is also connected with a pH detector; the feed water pump, the acid adding pump and the pH detector are all connected to a PC through signal lines. The pH value of the liquid at the liquid outlet is detected by the pH detector, and at the same time, the pH value data is transmitted to the PC. The PC controls the start and stop times of the feed water pump and the acid adding pump through a program, and adjusts the opening degree of the acid adding pump to stabilize the pH value of the nanofiltration feed water at a certain value, so as to make the pH value stable.

[0030] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations according to the concept of the present invention without creative work. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the protection scope determined by the claims.

Claims

1. A nanofiltration acidification mixer, characterized in that: The mixer comprises a mixer tube body (1); the mixer tube body (1) is hollow inside, and has a liquid inlet (2) and a liquid outlet (3) at both ends; an acid addition port (4) is provided on the side of the mixer tube body (1) close to the liquid inlet (2); the liquid inlet (2), the liquid outlet (3) and the acid addition port (4) are all provided with connecting flanges (5); and a spiral blade (6) for mixing water and acid is provided inside the mixer tube body (1).

2. A nanofiltration acidification mixer according to claim 1, characterized in that: The mixer tube body (1), the liquid inlet (2), the liquid outlet (3) and the acid addition port (4) are integrally injection molded; the mixer tube body (1) is made of glass fiber reinforced plastic.

3. A nanofiltration acidification mixer according to claim 1, characterized in that: The liquid inlet (2) is connected to the water inlet pipe via a connecting flange (5); the acid addition port (4) is connected to the acid inlet pipe via a connecting flange (5); and the liquid outlet (3) is connected to the nanofiltration system via a connecting flange (5).

4. A nanofiltration acidification mixer according to claim 3, characterized in that: The water inlet pipe is connected to a nanofiltration water inlet pump; the acid inlet pipe is connected to an acid adding pump; the liquid outlet (3) is also connected to a pH detector; the nanofiltration water inlet pump, the acid adding pump and the pH detector are all connected to the PC via signal lines.

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