Micro-bubble nozzle

Abstract

The utility model relates to the technical field of nozzles, and provides a microbubble nozzle which comprises a shell, the shell is provided with a feeding port, a discharging port, an air inlet and an inner cavity, the discharging port and the air inlet are both communicated with the inner cavity, and the air inlet is located between the feeding port and the discharging port; the nozzle is arranged in the inner cavity, the feeding port is communicated with the nozzle, the nozzle is communicated with the inner cavity, and the sectional area of the nozzle is gradually reduced from the feeding port to the discharging port. By means of the technical scheme, the problems that in the prior art, the microbubble generation process is complex and takes a long time are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of nozzles, and in particular to a microbubble nozzle. Background Art

[0002] Coal slime flotation is an important coal sorting technology, which is widely used in coal washing plants. This technology mainly uses the different wettability of coal and solid particles in water to separate coal and impurities through a specific flotation process.

[0003] In the flotation process, the most mature and effective separation method for fine coal with a particle size below 0.5 mm is the existing method, which usually uses a gas dissolving tank to dissolve the gas. When the dissolved gas slurry in the gas dissolving tank passes through the pre-contact zone, the dissolved gas slurry will enter the flotation releaser under the action of pressure and water flow rate. In the flotation releaser, the dissolved gas slurry passes through a specific structure, so that the gas is quickly released from the slurry to form microbubbles. This method of forming microbubbles is not only very costly, but also requires a lot of time to pre-treat the slurry, which reduces the efficiency of the treatment. Utility Model Content

[0004] The utility model provides a microbubble nozzle, which solves the problem in the related art that the microbubble generation process is complicated and takes a long time.

[0005] The technical solution of the utility model is as follows:

[0006] A microbubble nozzle, comprising:

[0007] A shell having a feed port, a discharge port, an air inlet and an inner cavity, wherein the discharge port and the air inlet are both connected to the inner cavity, and the air inlet is located between the feed port and the discharge port;

[0008] A nozzle is arranged in the inner cavity, the feed port is connected to the nozzle, the nozzle is connected to the inner cavity, and the cross-sectional area of ​​the nozzle gradually decreases from the feed port to the discharge port.

[0009] As a further technical solution, the discharge port has two sections, namely a reduction section and a retaining section. The reduction section is connected to the inner cavity, and the cross-sectional area of ​​the reduction section gradually decreases along the direction from the inner cavity to the retaining section, while the cross-sectional area of ​​the retaining section remains unchanged.

[0010] As a further technical solution, it also includes:

[0011] There are several spiral guide plates which are arranged on the inner wall of the nozzle at circumferential intervals.

[0012] As a further technical solution, the nozzle outlet is located at the inlet of the reduction section.

[0013] As a further technical solution, the shell is divided into a first body and a second body, the feed port and the nozzle are located on the first body, the discharge port is located on the second body, and the first body and the second body are detachably connected.

[0014] As a further technical solution, it also includes:

[0015] A sealing block, arranged on one end of the first body close to the second body;

[0016] A sealing groove is provided on one end of the second body close to the first body, and the sealing groove is in sealing cooperation with the sealing block.

[0017] The working principle and beneficial effects of the utility model are:

[0018] In the utility model, the shell is the main body of the nozzle. When in use, the liquid to be treated enters the inner cavity of the shell through the feed port. The feed port design ensures that the liquid can flow in smoothly, preparing for the subsequent gas-liquid mixing. At the same time, the compressed gas is introduced into the inner cavity through the air inlet. The position of the air inlet is between the feed port and the discharge port. Such a layout helps the gas to be more evenly distributed and mixed in the liquid flow. The nozzle is located in the inner cavity, directly connected to the feed port, and the cross-sectional area of ​​the nozzle gradually decreases. This design has two key functions: one is to accelerate the speed of the fluid flowing through the nozzle, and the other is to promote the gas to disperse more violently in the reduced space to form tiny bubbles. As the liquid accelerates inside the nozzle and passes through the gradually tapering channel, the injected gas is forced to split into extremely small bubbles. When these microbubbles leave the nozzle and enter the open environment, they remain stable due to the effect of surface tension, thereby ensuring the generation of microbubbles. Through the design of the shell and the nozzle, the material produced after passing through the nozzle has continuous and stable bubble generation, which reduces the cost and time of bubble generation and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0020] Figure 1 It is a schematic diagram of the structure of the utility model.

[0021] In the figure: 1. shell, 2. feed port, 3. discharge port, 4. air inlet, 5. inner cavity, 6. nozzle, 7. reduction section, 8. holding section, 9. spiral guide plate, 10. first body, 11. second body, 12. sealing block, 13. sealing groove. DETAILED DESCRIPTION

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, they can also be understood as further technical solutions without paying creative work. In some figures, components with the same structure or function are only schematically illustrated, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0023] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0024] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0025] Reference Figure 1 , which is the first embodiment of the utility model, proposes a microbubble nozzle 6, including: a shell 1 having a feed port 2, a discharge port 3, an air inlet 4 and an inner cavity 5, the discharge port 3 and the air inlet 4 are both connected to the inner cavity 5, and the air inlet 4 is located between the feed port 2 and the discharge port 3; the nozzle 6 is arranged in the inner cavity 5, the feed port 2 and the nozzle 6 are connected, the nozzle 6 is connected to the inner cavity 5, and the cross-sectional area of ​​the nozzle 6 gradually decreases from the feed port 2 to the discharge port 3.

[0026] In this embodiment, the shell 1 is the main body of the nozzle 6. When in use, the liquid to be treated enters the inner cavity 5 of the shell 1 through the feed port 2. The design of the feed port 2 ensures that the liquid can flow in smoothly, preparing for the subsequent gas-liquid mixing. At the same time, the compressed gas is introduced into the inner cavity 5 through the air inlet 4. The position of the air inlet 4 is between the feed port 2 and the discharge port 3. Such a layout helps the gas to be more evenly distributed and mixed in the liquid flow. The nozzle 6 is located in the inner cavity 5, directly connected to the feed port 2, and the cross-sectional area of ​​the nozzle 6 gradually decreases. This design has two key functions: one is to accelerate the fluid velocity flowing through the nozzle 6, and the other is to promote the gas to disperse more violently in the reduced space to form tiny bubbles. As the liquid accelerates inside the nozzle 6 and passes through the gradually tapering channel, the injected gas is forced to split into extremely small bubbles. When these microbubbles leave the nozzle 6 and enter the open environment, they remain stable due to the effect of surface tension, thereby ensuring the generation of microbubbles. Through the design of the shell 1 and the nozzle 6, the material produced after passing through the nozzle 6 has continuous and stable bubble generation, which reduces the cost and time of bubble generation and improves production efficiency.

[0027] As a further technical solution, the discharge port 3 has two sections, namely a reduction section 7 and a retaining section 8. The reduction section 7 is connected to the inner cavity 5. The cross-sectional area of ​​the reduction section 7 gradually decreases along the direction from the inner cavity 5 to the retaining section 8, and the cross-sectional area of ​​the retaining section 8 remains unchanged.

[0028] In this embodiment, the reduction section 7 is located between the inner cavity 5 and the holding section 8, and is characterized in that the cross-sectional area gradually decreases from the inner cavity 5 to the reduction section 7. Such a design helps to increase the velocity of the fluid, because as a further technical solution, it produces microbubbles with more uniform size and denser distribution, which is crucial for improving application performance such as dissolved oxygen efficiency, cleaning effect or specific chemical reaction rate. This segmented design of the discharge port 3 not only improves the gas-liquid mixing efficiency, but also ensures the quality and stability of the microbubbles. It is an important advancement in the field of microbubble technology and is particularly suitable for application scenarios that have strict requirements on the quality and quantity of microbubbles.

[0029] As a further technical solution, it also includes: there are a plurality of spiral guide plates 9 which are arranged on the inner wall of the nozzle 6 at circumferential intervals.

[0030] In this embodiment, the spiral guide plate 9 is composed of a plurality of units, which are arranged at intervals along the circumference of the inner wall of the nozzle 6. This means that each guide plate is arranged in the form of a spiral line, forming a continuous or discontinuous spiral structure, which runs through or partially covers the internal channel of the nozzle 6. As the liquid and gas flow inside the nozzle 6, the spiral guide plate 9 can force the two-phase medium to produce a stronger vortex motion. This vortex motion helps the gas to be more finely dispersed in the liquid, promotes the generation of microbubbles, increases the gas-liquid contact surface area, and then enhances the gas dissolution or reaction efficiency, further ensuring the stable generation of microbubbles.

[0031] As a further technical solution, the outlet of the nozzle 6 is located at the inlet of the reduction section 7 .

[0032] In this embodiment, by placing the nozzle 6 outlet close to the reduction section 7 inlet, the high-speed fluid kinetic energy generated by the nozzle 6 can be maximized. This layout helps to form a stronger flow rate in the initial section of the reduction section 7, which is beneficial to the subsequent mixing, dispersion or acceleration process, and also reduces the volume of the nozzle 6, thereby increasing the scope of application of the nozzle 6.

[0033] As a further technical solution, the shell 1 is divided into a first body 10 and a second body 11, the feed port 2 and the nozzle 6 are located on the first body 10, the discharge port 3 is located on the second body 11, and the first body 10 and the second body 11 are detachably connected.

[0034] In this embodiment, the first body 10 includes the feed port 2 and the nozzle 6 part, which means that the entrance and preliminary processing of the material are completed in the first body 10. Since the nozzle 6 is designed to gradually reduce the cross-sectional area from the feed port 2 to the discharge port 3, the first body 10 should have a reasonable flow channel design to support the mixing of materials and gases and form the required microbubble flow. The second body 11 carries the function of the discharge port 3, that is, the position where the microbubble flow is finally discharged. This shows that the second body 11 may be mainly responsible for the export and discharge of the processed microbubble flow. The first body 10 and the second body 11 are detachably connected, which provides great convenience for the maintenance, cleaning and replacement of parts of the equipment. For example, if the nozzle 6 part is worn or blocked, there is no need to replace the shell 1 as a whole, and the first body 10 can be disassembled for maintenance or cleaning. Similarly, if the discharge port 3 part needs to be adjusted or inspected, the second body 11 can also be handled separately. It is ensured that the nozzle 6 can be produced more stably.

[0035] As a further technical solution, it also includes: a sealing block 12 is arranged on one end of the first body 10 close to the second body 11; a sealing groove 13 is arranged on one end of the second body 11 close to the first body 10, and the sealing groove 13 is sealed and matched with the sealing block 12.

[0036] In this embodiment, the sealing block 12 is arranged at one end of the first body 10, and the corresponding sealing groove 13 is located at one end of the second body 11. The two are tightly fitted when the two bodies are connected to form a reliable sealing interface. Good sealing is not only related to safety, but also improves the operating stability of the entire system. The precise cooperation between the sealing block 12 and the sealing groove 13 reduces the pressure fluctuations caused by leakage and ensures the continuity and consistency of the process, which is crucial to maintaining the long-term efficient and stable operation of the equipment. In summary, by adding the sealing block 12 and the sealing groove 13 between the first body 10 and the second body 11, not only the sealing performance of the equipment is improved, but also the flexibility and maintenance convenience of the equipment are increased, which is an effective measure to improve the overall design quality of the nozzle 6.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A microbubble nozzle, characterized in that: include: A shell (1) having a feed port (2), a discharge port (3), an air inlet (4) and an inner cavity (5), wherein the discharge port (3) and the air inlet (4) are both in communication with the inner cavity (5), and the air inlet (4) is located between the feed port (2) and the discharge port (3); The nozzle (6) is arranged in the inner cavity (5), the feed port (2) and the nozzle (6) are in communication, the nozzle (6) is in communication with the inner cavity (5), and the cross-sectional area of ​​the nozzle (6) gradually decreases from the feed port (2) to the discharge port (3).

2. A microbubble nozzle according to claim 1, characterized in that: The discharge port (3) has two sections, namely a reduction section (7) and a retention section (8); the reduction section (7) is connected to the inner cavity (5); the cross-sectional area of ​​the reduction section (7) gradually decreases along the direction from the inner cavity (5) to the retention section (8); and the cross-sectional area of ​​the retention section (8) remains unchanged.

3. A microbubble nozzle according to claim 1, characterized in that: Also includes: There are a plurality of spiral guide plates (9) which are arranged at circumferential intervals on the inner wall of the nozzle (6).

4. A microbubble nozzle according to claim 2, characterized in that: The outlet of the nozzle (6) is located at the inlet of the reduction section (7).

5. A microbubble nozzle according to claim 1, characterized in that: The shell (1) is divided into a first body (10) and a second body (11); the feed port (2) and the nozzle (6) are located on the first body (10); the discharge port (3) is located on the second body (11); and the first body (10) and the second body (11) are detachably connected.

6. A microbubble nozzle according to claim 5, characterized in that: Also includes: A sealing block (12) is arranged on an end of the first body (10) close to the second body (11); A sealing groove (13) is provided on an end of the second body (11) close to the first body (10), and the sealing groove (13) is in sealing cooperation with the sealing block (12).

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