Flotation purification equipment for high-purity quartz sand production

Abstract

The utility model provides a kind of high-purity quartz sand production is used to float purification equipment, belong to quartz sand flotation equipment technical field, including flotation cell, overflow and agitator. Among them, the inner wall of the flotation cell is equipped with multiple air-tight cavities surrounded by sealing frame, the inner wall of the flotation cell is also equipped with rubber membrane corresponding to the number of air-tight cavities, and is packaged at the air-tight cavity, the rubber membrane is set to be inflatable. The utility model is provided with rubber membrane around the inner wall of the flotation cell, when the height of foam layer is lower than the height of overflow, it cannot overflow outward, the rubber membrane inflates, at this time, the internal space of the flotation cell decreases, the liquid level can rise, so that the height of foam layer also rises accordingly, and is discharged through overflow, so that the foam with impurities can be fully overflowed and discharged, improve the flotation effect of quartz sand.

Description

Technical Field

[0001] This utility model belongs to the technical field of quartz sand flotation equipment, specifically referring to a flotation purification equipment for the production of high-purity quartz sand. Background Technology

[0002] Quartz sand flotation is a process that separates impurity minerals from quartz sand using physicochemical methods. It is mainly used to improve the purity and whiteness of quartz sand to meet the needs of high-purity applications such as glass, ceramics, electronics, and photovoltaics. The quartz sand flotation device is the key equipment in the quartz sand flotation process. Based on the differences in the physicochemical properties of mineral surfaces, it selectively adsorbs target minerals or impurities through bubbles to achieve the separation of quartz from impurities.

[0003] During the flotation of quartz sand, bubbles carrying impurities rise to the liquid surface, forming a bubble layer. As bubbles continue to be generated, the thickness of the bubble layer gradually increases and overflows from the overflow port. However, as bubbles continue to overflow, the liquid level gradually decreases. Towards the end of the flotation process, the bubble layer cannot reach the overflow port height, resulting in a small number of bubbles carrying impurities not being completely discharged, which in turn affects the purity of the flotated quartz sand. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a flotation purification equipment for high-purity quartz sand production, which at least partially solves the above problems.

[0005] The technical solution adopted by this utility model is as follows: This utility model proposes a flotation purification device for high-purity quartz sand production, comprising: The flotation cell has an overflow outlet arranged at an angle on one side of its top. The flotation cell is equipped with an agitator for stirring. The inner wall of the flotation tank is provided with multiple airtight cavities enclosed by sealing frames. The inner wall of the flotation tank is also provided with rubber membranes corresponding to the number of airtight cavities and sealed at the airtight cavities. The rubber membranes are designed to be inflatable. The airtight cavity is equipped with multiple vertically arranged rubber airbags, which are distributed along the circumference of the flotation cell. The rubber airbags are configured to be inflatable.

[0006] Furthermore, a first air pipe is provided on the outside of the flotation tank. The first air pipe is connected to an external air supply device. An air inlet branch pipe corresponding to the number of airtight cavities is connected to the first air pipe. The air inlet branch pipe passes through the flotation tank and extends to communicate with the airtight cavities.

[0007] Furthermore, a second air pipe is provided on the outside of the flotation tank. The second air pipe is connected to an external air supply device. A connecting pipe corresponding to the number of airtight cavities is connected to the second air pipe. The connecting pipe passes through the flotation tank and extends into the airtight cavity. The rubber airbag is in communication with the connecting pipe.

[0008] Furthermore, the thickness of the rubber airbag when fully contracted is less than the height of the airtight cavity.

[0009] Furthermore, the bottom of the rubber airbag is provided with a connecting tube, and the rubber airbag is connected to the connecting tube through the connecting tube.

[0010] Furthermore, the bottom of the flotation tank is provided with a discharge pipe for discharging materials, and a control valve is installed on the discharge pipe.

[0011] Furthermore, a support frame is provided on the top of the flotation tank, and the agitator is installed on the support frame.

[0012] The beneficial effects of this utility model by adopting the above structure are as follows: 1. By installing a rubber membrane around the inner wall of the flotation tank, when the height of the foam layer is lower than the height of the overflow port and cannot overflow outward, the rubber membrane inflates and expands. At this time, the internal space of the flotation tank decreases, the liquid level can rise, and the height of the foam layer also rises accordingly. The foam layer is then discharged through the overflow port, allowing the foam carrying impurities to overflow and be discharged fully, thus improving the flotation effect of quartz sand.

[0013] 2. By installing rubber airbags around the inner wall of the flotation tank, the rubber airbags are inflated during sand washing. At this time, the flat rubber membrane is lifted by the fully expanded rubber airbags, and multiple turbulence protrusions are generated on the surface of the rubber membrane. When the agitator is stirring and washing the sand, the turbulence protrusions cause turbulence, which improves the cleaning effect of quartz sand. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a flotation purification device for producing high-purity quartz sand, as proposed in an embodiment of this utility model. Figure 2 A schematic diagram showing the positional distribution of the rubber membrane in a flotation purification device for producing high-purity quartz sand, as proposed in an embodiment of this utility model. Figure 3 A schematic diagram illustrating the connection between the rubber membrane and the sealing frame in a flotation purification device for producing high-purity quartz sand, as proposed in an embodiment of this utility model. Figure 4 A schematic diagram showing the positional distribution of rubber airbags in a flotation purification device for producing high-purity quartz sand, as proposed in an embodiment of this utility model. Figure 5 for Figure 4Enlarged view of point A in the middle; Figure 6 A schematic diagram illustrating the state of a rubber membrane expanding in a flotation purification device for producing high-purity quartz sand, as proposed in an embodiment of this utility model. Figure 7 This is a schematic diagram showing the state of the rubber airbag during expansion in a flotation purification device for producing high-purity quartz sand, as proposed in an embodiment of this utility model.

[0015] Among them, 1. Flotation tank; 11. Sealing frame; 101. Airtight cavity; 12. Overflow port; 2. Rubber membrane; 3. Rubber air bag; 31. Connecting pipe; 4. Agitator; 5. First air pipe; 51. Air inlet branch pipe; 6. Second air pipe; 61. Connecting pipe; 7. Support frame; 8. Discharge pipe.

[0016] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0018] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] like Figure 1 As shown, this utility model proposes a flotation purification device for the production of high-purity quartz sand, including a flotation tank 1, an overflow port 12, and a stirrer 4.

[0020] The overflow port 12 is inclined and set on one side of the top of the flotation cell 1, and the overflow height of the overflow port 12 is lower than the top of the flotation cell 1, so that the flotation foam can overflow outward only through the overflow port 12, which is convenient for unified collection.

[0021] The flotation cell 1 is also equipped with a reagent addition pipeline, through which flotation reagents are added to the flotation cell 1.

[0022] The agitator 4 is installed at the center of the flotation cell 1 and is driven by an external drive motor. It stirs the quartz sand and flotation reagents inside the flotation cell 1, so that the quartz sand and flotation reagents are fully mixed and bubbles are generated under the action of the frother, so that impurities are carried to the surface by the bubbles.

[0023] In a specific embodiment, a support frame 7 is provided on the top of the flotation tank 1, and the agitator 4 is installed on the support frame 7.

[0024] Furthermore, the bottom of the flotation tank 1 is provided with a discharge pipe 8 for discharging materials. The quartz sand after flotation is discharged through the discharge pipe 8. A control valve is installed on the discharge pipe 8. The discharge pipe 8 is opened or closed by controlling the control valve. At the same time, the discharge speed of the discharge pipe 8 is adjusted by adjusting the opening range of the control valve.

[0025] In optional embodiments, the control valve is one of a butterfly valve, a ball valve, or a gate valve, with a butterfly valve being preferred.

[0026] Combination Figure 2 and Figure 3 As shown, the inner wall of the flotation cell 1 is provided with multiple airtight cavities 101 enclosed by sealing frames 11. The inner wall of the flotation cell 1 is also provided with rubber membranes 2 corresponding to the number of airtight cavities 101, and sealed in the airtight cavities 101. The rubber membranes 2 are designed to be inflatable. When the rubber membranes 2 are not inflated, they are in a flat state. When the airtight cavities 101 are inflated, the rubber membranes 2 expand, the internal space of the flotation cell 1 decreases, and the liquid level can rise.

[0027] Thus, during flotation, as the agitator 4 continuously stirs and bubbles are continuously generated under the action of the frother, impurities are carried to the surface by the bubbles, forming a foam layer. As the foam accumulates, it overflows from the overflow port 12, and the liquid level also decreases. When the foam layer is lower than the overflow port 12 and cannot overflow, air is injected into the airtight cavity 101, causing the rubber membrane 2 to expand (e.g., Figure 6 As shown in the figure, at this time, the internal space of the flotation cell 1 decreases, the liquid level can rise, and the height of the foam layer also rises accordingly. The foam layer is discharged through the overflow port 12, so that the foam carrying impurities can be fully overflowed and discharged, thereby improving the flotation effect of quartz sand.

[0028] In some embodiments, the rubber membrane 2 may use nitrile rubber, fluororubber, EPDM rubber or silicone rubber as the matrix, and may use nylon, glass fiber or steel cord as the skeleton material to improve tear resistance. By adding hard particles such as silicon carbide grains, calcined coke, phenolic resin, etc., wear resistance is improved through physical friction resistance.

[0029] In a specific embodiment, a first air pipe 5 is provided on the outside of the flotation tank 1. The first air pipe 5 is connected to an external air supply device. An air inlet branch pipe 51 corresponding to the number of airtight cavities 101 is connected to the first air pipe 5. The air inlet branch pipe 51 passes through the flotation tank 1 and extends to communicate with the airtight cavities 101. The external air supply device supplies air to the multiple airtight cavities 101 through the first air pipe 5 and multiple air inlet branch pipes 51, causing the rubber membrane 2 to expand. Correspondingly, each airtight cavity 101 can exhaust air through the air inlet branch pipe 51 and the first air pipe 5.

[0030] Combination Figure 4 and Figure 5 As shown, the airtight cavity 101 is provided with a plurality of vertically arranged rubber airbags 3, and the plurality of rubber airbags 3 are distributed along the circumference of the flotation cell 1. The rubber airbags 3 are configured to be inflatable.

[0031] During quartz sand flotation, the rubber airbag 3 is fully contracted, and its thickness at full contraction is less than the height of the airtight cavity 101. At this time, the surface of the rubber membrane 2 is smooth and wrinkle-free, and will not cause turbulence to the flowing slurry, thus preventing the bubbles generated in the slurry from being destroyed by turbulence. After quartz sand flotation is completed, when it is necessary to wash the sand to remove residual reagents adhering to the surface, air is injected into the rubber airbag 3, causing it to fully expand. At this time, the smooth rubber membrane 2 is lifted by the fully expanded rubber airbag 3, resulting in multiple turbulence protrusions on the surface of the rubber membrane 2 (such as...). Figure 7 As shown in the figure, when the agitator 4 is agitating and washing sand, the turbulence protrusions turbulent the flow to improve the washing effect of the quartz sand.

[0032] In a specific embodiment, a second air pipe 6 is provided on the outside of the flotation tank 1. The second air pipe 6 is connected to an external air supply device. A connecting pipe 61 corresponding to the number of airtight cavities 101 is connected to the second air pipe 6. The connecting pipe 61 passes through the flotation tank 1 and extends into the airtight cavity 101. A connecting pipe 31 is provided at the bottom of the rubber airbag 3. The rubber airbag 3 is connected to the connecting pipe 61 through the connecting pipe 31. The external air supply device inflates the rubber airbag 3 through the second air pipe 6, the connecting pipe 61 and the connecting pipe 31, causing the rubber airbag 3 to expand. Correspondingly, each rubber airbag 3 can exhaust air through the connecting pipe 31, the connecting pipe 61 and the second air pipe 6.

[0033] In summary, by setting a rubber membrane 2 around the inner wall of the flotation tank 1, when the height of the foam layer is lower than the height of the overflow port 12 and cannot overflow outward, the rubber membrane 2 inflates and expands. At this time, the internal space of the flotation tank 1 decreases, the liquid level can rise, and the height of the foam layer also rises accordingly. The foam layer is then discharged through the overflow port 12, allowing the foam carrying impurities to overflow and be discharged fully, thereby improving the flotation effect of quartz sand.

[0034] By installing rubber airbags 3 around the inner wall of flotation tank 1, the rubber airbags 3 inflate during sand washing. At this time, the flat rubber membrane 2 is lifted by the fully inflated rubber airbags 3, causing multiple turbulence protrusions (such as...) to appear on the surface of the rubber membrane 2. Figure 7 As shown in the figure, when the agitator 4 is agitating and washing sand, the turbulence protrusions cause turbulence and improve the washing effect of the quartz sand.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A flotation purification device for producing high-purity quartz sand, characterized in that, include: The flotation cell (1) has an overflow outlet (12) arranged at an angle on one side of its top. The flotation tank (1) is equipped with a stirrer (4) for stirring. The inner wall of the flotation tank (1) is provided with a plurality of airtight cavities (101) surrounded by sealing frames (11). The inner wall of the flotation tank (1) is also provided with rubber membranes (2) corresponding to the number of airtight cavities (101) and sealed in the airtight cavities (101). The rubber membranes (2) are configured to be able to expand by air. The airtight cavity (101) is provided with a plurality of vertically arranged rubber airbags (3), and the plurality of rubber airbags (3) are distributed along the circumference of the flotation cell (1). The rubber airbags (3) are configured to be inflatable.

2. The flotation purification equipment for high-purity quartz sand production according to claim 1, characterized in that: The flotation tank (1) is provided with a first air pipe (5) on its outer side. The first air pipe (5) is connected to an external air supply device. An air inlet branch pipe (51) corresponding to the number of airtight cavities (101) is connected to the first air pipe (5). The air inlet branch pipe (51) passes through the flotation tank (1) and extends to communicate with the airtight cavity (101).

3. The flotation purification equipment for high-purity quartz sand production according to claim 1, characterized in that: The flotation tank (1) is provided with a second air pipe (6) on the outside. The second air pipe (6) is connected to an external air supply device. The second air pipe (6) is connected to a connecting pipe (61) corresponding to the number of airtight cavities (101). The connecting pipe (61) passes through the flotation tank (1) and extends into the airtight cavity (101). The rubber airbag (3) is connected to the connecting pipe (61).

4. The flotation purification equipment for high-purity quartz sand production according to claim 1, characterized in that: The thickness of the rubber airbag (3) when fully contracted is less than the height of the airtight cavity (101).

5. The flotation purification equipment for high-purity quartz sand production according to claim 3, characterized in that: The bottom of the rubber airbag (3) is provided with a connecting tube (31), and the rubber airbag (3) is connected to the connecting tube (61) through the connecting tube (31).

6. The flotation purification equipment for high-purity quartz sand production according to claim 1, characterized in that: The bottom of the flotation tank (1) is provided with a discharge pipe (8) for discharging materials, and a control valve is installed on the discharge pipe (8).

7. The flotation purification equipment for high-purity quartz sand production according to claim 1, characterized in that: The top of the flotation tank (1) is provided with a support frame (7), and the agitator (4) is installed on the support frame (7).

Images