Air flotation mechanism and flotation device comprising same

Abstract

The utility model discloses an air flotation mechanism and a flotation device including the air flotation mechanism, the air flotation mechanism comprises a support frame, an aeration disc, a straight nozzle and an air supply device, the aeration disc is arranged at the bottom position of the support frame, the straight nozzle is arranged on one side of the bottom of the support frame, the outlet end of the air supply device is provided with an air supply pipe, and the air supply pipe is connected with the aeration disc. The air supply pipe is communicated with the aeration disc and the straight nozzle through a pipeline; the direct nozzles on the air flotation mechanism spray high-pressure gas to stir materials sinking to the bottom in the flotation device so that the materials sinking to the bottom can rise, the aeration disc releases a large amount of gas to produce a large amount of tiny bubbles to fill the whole flotation medium area, and the tiny bubbles in the flotation medium are attached to the surface of the materials to be floated. Therefore, the material with the density slightly larger than that of the flotation medium floats on the liquid level, the flotation machine can be assisted to conduct material flotation, and the flotation recovery processing efficiency of waste materials is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flotation equipment, in particular to an air flotation mechanism and a flotation device including the air flotation mechanism. Background Art

[0002] In the industry, the flotation machine is also commonly known as: flotation water tank, flotation tank, flotation boat, cleaning water tank, cleaning tank or flotation machine, etc. The flotation machine is applicable to the flotation link of broken particles with different types of materials mixed together in the recycling process of waste rubber, plastics, hollow glass sealant strips and other waste materials. The air flotation device in the flotation machine is a commonly used auxiliary device in the recycling machinery of waste rubber, plastics, hollow glass sealant strips and other waste materials, specifically an auxiliary device for flotation separation using the density flotation method and floating and sinking separation using a liquid medium.

[0003] In the process of floating and sinking and separating waste materials, a liquid is required as the flotation medium (for example, brine, calcium chloride water, etc.). However, the density of the saturated solution of the commonly used liquid flotation medium at room temperature in the industry is less than 1.5 g / cm 3 , and it is difficult to find a safe and stable high-density liquid as the flotation medium. For materials with a density greater than 1.6 g / cm 3 , it is difficult to find a flotation medium with a greater density to float it (such as PVC plastics, PET plastics, hollow glass sealant strips, highly filled plastics, etc.); therefore, the existing flotation machines cannot float and separate waste materials with a density slightly greater than that of the flotation medium, which greatly limits the efficiency of the flotation recovery and treatment of waste materials. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an air flotation mechanism and a flotation device including the air flotation mechanism, aiming to solve the above-mentioned problems.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] An air flotation mechanism, comprising:

[0007] A support frame;

[0008] An aeration disc, arranged at the bottom position of the support frame;

[0009] A straight nozzle, arranged on one side of the bottom of the support frame;

[0010] An air supply device, the outlet end of which is provided with an air supply pipe, and the air supply pipe is connected to the aeration disc and the straight nozzle through pipelines.

[0011] Preferably, a pipeline one is connected to the air supply pipe, and the other end of the pipeline one is connected to the aeration disc.

[0012] Preferably, a second pipeline is connected to the air supply pipeline, and the other end of the second pipeline is connected to the straight nozzle.

[0013] Preferably, a delivery pipe is connected to the air supply pipeline, and the inlets of the aeration disc and the straight nozzle are both installed on the delivery pipe.

[0014] Preferably, regulating valves are installed on both the first pipeline and the second pipeline.

[0015] Preferably, a pressure relief valve is installed on the air supply pipeline.

[0016] Preferably, the support frame includes at least two U-shaped frames which are arranged at intervals, and the aeration disc and the straight nozzle are installed at the bottoms of the two U-shaped frames.

[0017] Preferably, the air supply device is a high-pressure blower.

[0018] A flotation device includes a receiving tank and also includes the air flotation mechanism described above, and the air flotation mechanism is installed on the receiving tank.

[0019] Preferably, the support frame is installed on the inner wall of the receiving tank, and the air supply device is installed on the top end of the receiving tank.

[0020] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows:

[0021] In the present utility model, the straight nozzle on the air flotation mechanism sprays high-pressure gas to stir the materials settled at the bottom in the flotation device so that the materials settled at the bottom are lifted up, and the aeration disc releases a large amount of gas to create a large number of tiny bubbles that fill the entire flotation medium area. The tiny bubbles in the flotation medium adhere to the surface of the materials to be floated, so that the materials with a density slightly greater than that of the flotation medium float to the liquid surface, thereby assisting the flotation machine to perform the flotation of the materials and improving the flotation recovery efficiency of the waste materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a perspective view of the air flotation mechanism in the present utility model;

[0023] Figure 2 is a perspective view of the flotation device in the present utility model;

[0024] Figure 3 is an exploded view of the flotation device in the present utility model.

[0025] Markings in the figures: 1, support frame; 2, aeration disc; 3, straight nozzle; 4, air supply device; 401, air supply pipeline; 5, first pipeline; 6, second pipeline; 7, regulating valve; 8, pressure relief valve; 9, receiving tank; 10, support base. Detailed implementation mode

[0026] 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. 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.

[0027] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "provided with", "installed", "connected", and "coupled" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] Refer to Figure 1 , an air flotation mechanism for a flotation device, including a support frame 1, an aeration disk 2, a straight nozzle 3, and a gas supply device 4, wherein:

[0029] The support frame 1 includes at least two U-shaped frames, and the two U-shaped frames are arranged at intervals. The two U-shaped frames can be connected and matched with each other to form an integral frame, or the two U-shaped frames can also be independently arranged at intervals. The support frame 1 is used to install and support the aeration disk 2 and the straight nozzle 3;

[0030] Both the aeration disk 2 and the straight nozzle 3 are installed at the bottom position of the support frame 1. The aeration disk 2 can be provided at the bottom position of the support frame 1, and the straight nozzle 3 can be provided on one side of the bottom of the support frame 1. Specifically, the aeration disk 2 and the straight nozzle 3 are installed at the bottom of the two U-shaped frames;

[0031] The gas supply device 4 is a high-pressure blower. A gas supply pipe 401 is provided at the outlet end of the gas supply device 4. The gas supply pipe 401 is connected to the aeration disk 2 and the straight nozzle 3 through a pipeline. When the gas supply device 4 is started, it can generate high-pressure gas, and the high-pressure gas can supply gas to the aeration disk 2 and the straight nozzle 3 through the gas supply pipe 401;

[0032] In this implementation scheme, refer to Figure 2 and Figure 3As shown, the support frame 1 can be installed on the inner wall of the receiving tank 9 of the flotation device. At this time, the aeration disc 2 and the straight nozzle 3 on the support frame 1 are also located in the receiving tank 9. When the flotation device floats waste materials, the inside of the receiving tank 9 can hold flotation media such as brine, calcium chloride water, etc. The gas supply device 4 can supply high-pressure gas to the aeration disc 2 and the straight nozzle 3. The straight nozzle 3 sprays high-pressure gas to stir the materials settled at the bottom in the flotation device so that the materials settled at the bottom are stirred up. The aeration disc 2 releases a large amount of gas to create a large number of tiny bubbles that fill the entire flotation media area. The tiny bubbles in the flotation media adhere to the surface of the materials to be floated, enabling the materials with a density slightly greater than the flotation media to float to the liquid surface, thereby assisting the flotation machine in floating the materials and improving the efficiency of the flotation recovery treatment of waste materials.

[0033] In a possible implementation, as Figure 1 shown, a pipeline 15 and a pipeline 26 are connected to the gas supply pipe 401. The other end of the pipeline 15 is connected to the aeration disc 2, and the other end of the pipeline 26 is connected to the straight nozzle 3.

[0034] Through the independent pipelines 15 and 26, it is convenient to directly supply gas to the aeration disc 2 and the straight nozzle 3.

[0035] Alternatively, a delivery pipe is connected to the gas supply pipe 401. The inlets of the aeration disc 2 and the straight nozzle 3 are both installed on the delivery pipe. The gas supply pipe 401 supplies gas to the aeration disc 2 and the straight nozzle 3 through a delivery pipe. Compared with the two independent pipelines 15 and 26 mentioned above, supplying gas to the aeration disc 2 and the straight nozzle 3 through a delivery pipe can save the use of pipelines and reduce production costs.

[0036] In a possible implementation, as Figure 1 shown, a regulating valve 7 is installed on the pipeline 15, and a regulating valve 7 is installed on the pipeline 26. The regulating valve 7 on the pipeline 15 can open, close or adjust the air pressure flow in the pipeline 15, thereby enabling the control of the gas flow rate of the aeration disc 2; the regulating valve 7 on the pipeline 26 can open, close or adjust the air pressure flow in the pipeline 26, thereby enabling the control of the gas flow rate of the straight nozzle 3.

[0037] In a possible implementation, as Figure 1 shown, a pressure relief valve 8 is installed on the gas supply pipe 401. When the air pressure exceeds the set value, part of the gas can be released through the pressure relief valve 8 to reduce the air pressure in the gas supply pipe 401, ensuring the safety of the pipeline.

[0038] As Figure 2 and Figure 3As shown in the figure, in the embodiment of the present utility model, a flotation device is further provided, which is used in the flotation process of crushed particles with different types of materials mixed together during the recycling process of waste rubber, plastics, hollow glass sealant strips and other waste materials. The flotation device includes a receiving tank 9. The inside of the receiving tank 9 can hold flotation media such as brine, calcium chloride water, etc. and the materials to be floated. The flotation device further includes the air flotation mechanism described above. The air flotation mechanism is installed on the receiving tank 9. The support frame 1 in the air flotation mechanism can be installed on the inner wall of the receiving tank 9. The air supply device 4 is installed on the top of the receiving tank 9. A support seat 10 is installed on the top of the receiving tank 9. The air supply device 4 is installed on the support seat 10;

[0039] In this embodiment, when the flotation device operates, the flotation medium inside the receiving tank 9 floats the waste materials. The air supply device 4 supplies air to the aeration disc 2 and the direct nozzle 3. The direct nozzle 3 at the bottom of the support frame 1 sprays high-pressure gas to stir the materials at the bottom, causing the materials at the bottom to rise. The aeration disc 2 releases a large amount of gas to create a large number of tiny bubbles that fill the entire flotation medium area. The tiny bubbles in the flotation medium adhere to the surface of the materials to be floated, so that the materials with a density slightly greater than the flotation medium float to the liquid surface, improving the flotation recovery efficiency of waste materials compared with the existing flotation devices.

Claims

1. An air flotation mechanism, characterized in that, Comprising: Support frame (1); Aeration disc (2), provided at the bottom position of the support frame (1); Straight nozzle (3), provided on one side of the bottom of the support frame (1); Gas supply device (4), with a gas supply pipe (401) provided at its outlet end, and the gas supply pipe (401) is connected to the aeration disc (2) and the straight nozzle (3) through pipelines.

2. The air flotation mechanism according to claim 1, wherein A pipeline one (5) is connected to the gas supply pipe (401), and the other end of the pipeline one (5) is connected to the aeration disc (2).

3. The air flotation mechanism according to claim 2, wherein A pipeline two (6) is connected to the gas supply pipe (401), and the other end of the pipeline two (6) is connected to the straight nozzle (3).

4. The air flotation mechanism according to claim 1, wherein A delivery pipe is connected to the gas supply pipe (401), and the inlets of the aeration disc (2) and the straight nozzle (3) are both installed on the delivery pipe.

5. The air flotation mechanism according to claim 3, wherein Regulating valves (7) are installed on both the pipeline one (5) and the pipeline two (6).

6. The air flotation mechanism according to claim 1, wherein, A pressure relief valve (8) is installed on the gas supply pipe (401).

7. The air flotation mechanism according to claim 1, characterized in that, The support frame (1) includes at least two U-shaped frames, the two U-shaped frames are spaced apart, and the aeration disc (2) and the straight nozzle (3) are installed at the bottoms of the two U-shaped frames.

8. The air flotation mechanism according to claim 1, wherein, The gas supply device (4) is a high-pressure blower.

9. A flotation device, comprising a receiving tank (9), characterized in that, It further includes the air flotation mechanism according to any one of claims 1-8 above, and the air flotation mechanism is installed on the receiving groove (9).

10. The flotation device according to claim 9, characterized in that, The support frame (1) is installed on the inner wall of the receiving groove (9), and the gas supply device (4) is installed on the top of the receiving groove (9).

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