Granite tailings mica separation device and separation method

Abstract

The present invention discloses a granite tailings mica separation device, comprising a shell, a micro-nano bubble generator and a telescopic plate; a water inlet and a water outlet are respectively provided on opposite sides of the shell; a feed inlet and a sand outlet are respectively provided at the upper and lower ends of the shell; the feed inlet is located on the water outlet side of the water inlet, and the sand outlet is located on the water inlet side of the water outlet; a bubble nozzle of the micro-nano bubble generator is arranged at the water inlet; one end of the telescopic plate is connected to the junction of the water outlet and the sand outlet, and the other end of the telescopic plate extends toward the sand outlet, and the separation position of the mica is adjusted by changing the length of the telescopic plate; and the existing separation method is improved. The invention utilizes the lamellar structure characteristics and low density of mica, adopts micro-nano bubbles to make the mica sheets suspend in water for a longer time, can effectively reduce the mica content in the fine sand of the tailings, and creates favorable conditions for subsequent processing and utilization.

Description

Technical Field

[0001] The invention relates to the technical field of mineral screening, in particular to a granite tailings mica separation device and a separation method thereof. Background Art

[0002] Granite is a commonly used building material, especially with my country's current push to promote manufactured sand. The resulting large amounts of tailings are often discarded annually, not only occupying valuable land resources but also placing a heavy burden on the ecological environment. Feldspar, a major component of granite, is a key raw material for ceramics and glass production. Therefore, extracting feldspar from granite tailings is of great significance and value. However, existing granite tailings contain a high concentration of mica, which hinders their application in the ceramics and glass industries. Summary of the Invention

[0003] The present invention aims to provide a device for separating mica from granite tailings, and improves existing separation methods. The device utilizes the lamellar structure and low density of mica, and uses micro-nano bubbles to keep the mica flakes suspended in water for a longer time, thereby effectively reducing the mica content in the fine sand of the tailings and creating favorable conditions for subsequent processing and utilization.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A device for separating mica from granite tailings comprises a shell, a micro-nano bubble generator, and a telescopic plate; a water inlet and a water outlet are respectively formed on opposite sides of the shell; a feed inlet and a sand outlet are respectively formed at the upper and lower ends of the shell; the feed inlet is located on the water outlet side of the water inlet, and the sand outlet is located on the water inlet side of the water outlet; a bubble nozzle of the micro-nano bubble generator is arranged at the water inlet; one end of the telescopic plate is connected to the junction of the water outlet and the sand outlet, and the other end of the telescopic plate extends toward the sand outlet, and the mica separation position is adjusted by changing the length of the telescopic plate.

[0006] Furthermore, the telescopic plate includes a flip plate and a movable plate; a accommodating groove is provided on one side of the movable plate; one end of the flip plate is hinged to the side of the sand outlet close to the water outlet, and the other end of the flip plate is embedded in the accommodating groove; the movable plate is provided with an external limit hole, and the flip plate is provided with a plurality of internal limit holes at intervals along the sliding direction of the movable plate, a limit rod passes through the external limit hole and its inner end is embedded in the internal limit hole; a hanging rope is tied to the movable plate, and the other end of the hanging rope is connected to the upper end of the shell, and the installation position of the movable plate is adjusted by changing the length of the hanging rope.

[0007] Furthermore, a mounting plate is provided on the side of the sand outlet close to the water outlet; the upper end of the mounting plate is hinged to the flip plate; a slide groove is longitudinally provided on the mounting plate, a locking bolt passes through the slide groove and its inner end is threadedly connected to the shell to lock the mounting plate on the shell.

[0008] Furthermore, a wire take-up device is provided at the upper end of the shell, and the end of the hanging rope away from the movable plate is wound around the wire take-up device, and the retracted and extended length of the hanging rope is adjusted by the wire take-up device.

[0009] Furthermore, a bulking device is provided at the lower end of the feed port; the bulking device includes a mounting cylinder and multiple layers of funnel-shaped screens spaced apart from each other; the mounting cylinder is fixed to the lower end of the feed port; a plurality of sieve holes are provided on the funnel-shaped screen; the upper edge of the funnel-shaped screen is fixedly connected to the mounting cylinder, and a material passage is provided at the lower edge of the funnel-shaped screen, and the diameter of the upper material passage is larger than that of the lower material passage.

[0010] Furthermore, a plurality of scattering bars are fixed at intervals on the upper end surface of the funnel-shaped screen, and the tailings fine sand is broken up by the scattering bars.

[0011] Furthermore, the side of the sand outlet close to the feed inlet is a downwardly inclined arc surface; the lower end of the water outlet is a downwardly inclined slope.

[0012] Furthermore, a separation method of a granite tailings mica separation device comprises the following steps:

[0013] S1: dissolving the surfactant, preparing micro-nano bubbles containing the surfactant through a micro-nano bubble generator, and ejecting the micro-nano bubbles from a bubble nozzle;

[0014] S2: Pour the granite tailings fine sand into the feed port. Under the action of the funnel-shaped screen and the dispersing rod, the granite tailings fine sand is fully broken up and fully contacted with the micro-nano bubbles;

[0015] S3: According to the floating height of the mica and the distance at which it starts to settle, the angle and length of the telescopic plate are adjusted. The other tailings fine sand with a fast settling speed is discharged from the sand outlet, and the mica and mud with a slow settling speed are discharged from the water outlet.

[0016] Furthermore, the surfactant is one or more of CTAB, sodium oleate, laurylamine or coconut amine.

[0017] After adopting the above technical solution, the present invention has the following beneficial effects:

[0018] 1. The present invention relates to a mica separation device for granite tailings. By utilizing the lamellar structure and low density of mica, micro-nano bubbles are used to keep the mica flakes suspended in water for a longer time, thereby effectively reducing the mica content in the fine sand of the tailings and creating favorable conditions for subsequent processing and utilization.

[0019] 2. The present invention provides a granite tailings mica separation device. After the mounting plate is moved longitudinally and then locked with a locking bolt, the installation height of the telescopic plate can be roughly adjusted. The installation height and installation length of the movable plate can be further adjusted by rotating the flip plate and adjusting the extended length of the movable plate. The device can be adjusted according to the actual separation height and lateral position of the mica and other tailings fine sand. It has strong adaptability and can effectively improve the mica separation effect.

[0020] 3. The present invention provides a granite tailings mica separation device. By adjusting the retracted and extended length of the hanging rope through a wire take-up device, the flip angle of the telescopic plate can be changed. The position of the telescopic plate to separate mica from other tailings fine sand can be quickly adjusted, and the use is flexible and convenient.

[0021] 4. The present invention provides a granite tailings mica separation device. The tailings fine sand can pass through the sieve holes or flow obliquely from the upper end surface of the funnel-shaped screen, and the dispersing effect of the scattering rod can effectively disperse and separate the tailings fine sand, increase the contact probability and area between mica and micro-nano bubbles, and improve the mica separation effect.

[0022] 5. In the separation method of the granite tailings mica separation device of the present invention, the surfactant can promote the adsorption of micro-nano bubbles on the flaky mica, reduce the sedimentation rate of the mica, and improve the separation effect of the mica. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the mounting plate and the telescopic plate of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the bulk material device of the present invention.

[0026] The reference numerals in the figures are as follows:

[0027] 1. Shell; 10. Water inlet; 11. Water outlet; 110. Inclined surface; 12. Feed inlet; 13. Sand outlet; 130. Arc surface; 14. Mounting plate; 140. Slide; 15. Locking bolt; 16. Wire take-up; 2. Micro-nano bubble generator; 20. Bubble nozzle; 3. Telescopic plate; 30. Flip plate; 300. Inner limit hole; 31. Movable plate; 310. Accommodating slot; 311. Outer limit hole; 32. Limit rod; 33. Hanging rope; 4. Bulk material device; 40. Mounting cylinder; 41. Funnel-shaped screen; 410. Sieve hole; 411. Material outlet; 412. Bulk material rod. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] See also Figures 1 to 3 A device for separating mica from granite tailings comprises a shell 1, a micro-nano bubble generator 2 and a telescopic plate 3; a water inlet 10 and a water outlet 11 are respectively provided on opposite sides of the shell 1; a feed inlet 12 and a sand outlet 13 are respectively provided at the upper and lower ends of the shell 1; the feed inlet 12 is located on the water outlet side of the water inlet 10, and the sand outlet 13 is located on the water inlet side of the water outlet 11; the bubble nozzle 20 of the micro-nano bubble generator 2 is arranged at the water inlet 10, and after the micro-nano bubbles adhere to the mica, the sedimentation time of the flaky mica can be prolonged; one end of the telescopic plate 3 is connected to the junction of the water outlet 11 and the sand outlet 13, and the other end of the telescopic plate 3 extends to the sand outlet 13, and the separation position of the mica is adjusted by changing the length of the telescopic plate 3.

[0030] like Figure 1 and Figure 2 As shown, the telescopic plate 3 includes a flip plate 30 and a movable plate 31; a receiving groove 310 is provided on one side of the movable plate 31; one end of the flip plate 30 is hinged to the sand outlet 13 near the water outlet 11, and the other end of the flip plate 30 is embedded in the receiving groove 310; the movable plate 31 is provided with an outer limit hole 311, and the flip plate 30 is provided with a plurality of inner limit holes 300 at intervals along the sliding direction of the movable plate 31, a limit rod 32 passes through the outer limit hole 311 and its inner end is embedded in the inner limit hole 300; a hanging rope 33 is tied to the movable plate 31, and the other end of the hanging rope 33 is connected to the upper end of the shell 1, and the installation position of the movable plate 31 is adjusted by changing the length of the hanging rope 33.

[0031] like Figure 1 and Figure 2 As shown, a mounting plate 14 is provided on the side of the sand outlet 13 near the water outlet 11; the upper end of the mounting plate 14 is hinged to the flip plate 30; a slide groove 140 is longitudinally provided on the mounting plate 14, and a locking bolt 15 passes through the slide groove 140 and its inner end is threadedly connected to the shell 1 to lock the mounting plate 14 on the shell 1.

[0032] like Figure 1 and Figure 2 As shown, a wire take-up device 16 is provided at the upper end of the housing 1 , and one end of the hanging rope 33 away from the movable plate 31 is wound around the wire take-up device 16 , and the retracted and extended length of the hanging rope 33 is adjusted by the wire take-up device 16 .

[0033] like Figure 1 and Figure 3As shown, a bulking device 4 is provided at the lower end of the feed port 12; the bulking device 4 includes a mounting cylinder 40 and multiple layers of funnel-shaped screens 41 spaced apart from each other; the mounting cylinder 40 is fixed to the lower end of the feed port 12; a plurality of sieve holes 410 are provided on the funnel-shaped screen 41; the upper edge of the funnel-shaped screen 41 is fixedly connected to the mounting cylinder 40, and a material passage 411 is provided at the lower edge of the funnel-shaped screen 41, and the diameter of the upper material passage 411 is larger than that of the lower material passage 411.

[0034] like Figure 1 and Figure 3 As shown, a plurality of scattering rods 412 are fixed at intervals on the upper end surface of the funnel-shaped screen 41 , and the tailings fine sand is broken up by the scattering rods 412 .

[0035] like Figure 1 As shown, the side of the sand outlet 13 close to the feed port 12 is a downwardly inclined arc surface 130; the lower end of the water outlet 11 is a downwardly inclined slope 110.

[0036] like Figures 1 to 3 As shown, a separation method of a granite tailings mica separation device comprises the following steps:

[0037] S1: dissolving a surfactant, preparing micro-nano bubbles containing the surfactant through a micro-nano bubble generator 2, and ejecting the micro-nano bubbles from a bubble nozzle 20;

[0038] S2: Pour the granite tailings fine sand into the feed port 12. Under the action of the funnel-shaped screen 41 and the dispersing rod 412, the granite tailings fine sand is fully broken up and fully contacted with the micro-nano bubbles;

[0039] S3: According to the floating height of the mica and the distance at which it starts to settle, the angle and length of the telescopic plate 3 are adjusted, and other tailings fine sand with a fast settling speed is discharged from the sand outlet 13, while mica and mud with a slow settling speed are discharged from the water outlet 11.

[0040] like Figures 1 to 3 As shown, the surfactant is one or more of CTAB, sodium oleate, laurylamine or coconut amine.

[0041] Working principle of the present invention:

[0042] When the granite tailings mica separation device of the present invention is used, first, the granite tailings fine sand is poured into the feed port 12, and under the action of the funnel-shaped screen 41 and the dispersing rod 412, the granite tailings fine sand can be fully dispersed; then, after the micro-nano bubbles generated by the micro-nano bubble generator 2 come into contact with the sinking granite tailings fine sand, due to the lamellar structure and low density of the mica, the micro-nano bubbles mainly adhere to the mica, which can prolong the sedimentation time of the flaky mica; then, according to the floating height of the mica and the distance at which it starts to settle, the angle and length of the telescopic plate 3 are adjusted to facilitate the separation of the mica from other tailings fine sand; finally, other tailings fine sand with a higher density or less prone to micro-nano bubbles settles faster and is discharged from the sand outlet 13, while the mica and mud settles slower and is discharged from the water outlet 11; therefore, the granite tailings mica separation device can effectively reduce the mica content in the tailings fine sand, creating favorable conditions for subsequent processing and utilization.

[0043] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A granite tailings mica separation device, characterized by: The invention comprises a shell (1), a micro-nano bubble generator (2) and a telescopic plate (3); a water inlet (10) and a water outlet (11) are respectively provided on opposite sides of the shell (1); a feed inlet (12) and a sand outlet (13) are respectively provided at the upper and lower ends of the shell (1); the feed inlet (12) is located on the water outlet side of the water inlet (10), and the sand outlet (13) is located on the water inlet side of the water outlet (11); the bubble nozzle (20) of the micro-nano bubble generator (2) is arranged at the water inlet (10); one end of the telescopic plate (3) is connected to the junction of the water outlet (11) and the sand outlet (13), and the other end of the telescopic plate (3) extends toward the sand outlet (13); and the separation position of the mica is adjusted by changing the length of the telescopic plate (3); The telescopic plate (3) comprises a flip plate (30) and a movable plate (31); a receiving groove (310) is provided on one side of the movable plate (31); one end of the flip plate (30) is hinged to the side of the sand outlet (13) close to the water outlet (11), and the other end of the flip plate (30) is embedded in the receiving groove (310); the movable plate (31) is provided with an outer limiting hole (311), and the flip plate (30) is provided with a plurality of inner limiting holes (300) at intervals along the sliding direction of the movable plate (31); a limiting rod (32) passes through the outer limiting hole (311) and its inner end is embedded in the inner limiting hole (300); a hanging rope (33) is tied to the movable plate (31), and the other end of the hanging rope (33) is connected to the upper end of the shell (1), and the installation position of the movable plate (31) is adjusted by changing the length of the hanging rope (33); The side of the sand outlet (13) close to the feed port (12) is a downwardly inclined arc surface (130); and the lower end of the water outlet (11) is a downwardly inclined slope (110).

2. The granite tailings mica separation device according to claim 1, characterized in that: A mounting plate (14) is provided on one side of the sand outlet (13) near the water outlet (11); the upper end of the mounting plate (14) is hinged to the flip plate (30); a slide groove (140) is longitudinally provided on the mounting plate (14); a locking bolt (15) passes through the slide groove (140) and the inner end of the locking bolt is threadedly connected to the housing (1) to lock the mounting plate (14) on the housing (1).

3. The granite tailings mica separation device according to claim 2, characterized in that: A wire take-up device (16) is provided at the upper end of the housing (1), and one end of the hanging rope (33) away from the movable plate (31) is wound around the wire take-up device (16), and the retracted and extended length of the hanging rope (33) is adjusted by the wire take-up device (16).

4. The granite tailings mica separation device according to claim 1, characterized in that: A bulking device (4) is provided at the lower end of the feed port (12); the bulking device (4) comprises a mounting cylinder (40) and multiple layers of funnel-shaped screens (41) spaced apart from each other; the mounting cylinder (40) is fixed to the lower end of the feed port (12); a plurality of screen holes (410) are provided on the funnel-shaped screen (41); the upper edge of the funnel-shaped screen (41) is fixedly connected to the mounting cylinder (40), and the lower edge of the funnel-shaped screen (41) is provided with a material passage (411); the diameter of the upper material passage (411) is larger than the diameter of the lower material passage (411).

5. The granite tailings mica separation device according to claim 4, characterized in that: A plurality of scattering rods (412) are fixed at intervals on the upper end surface of the funnel-shaped screen (41), and the scattering rods (412) are used to scatter the fine sand of the tailings.

6. A separation method using the granite tailings mica separation device according to any one of claims 1 to 5, characterized in that: The steps include: S1: dissolving the surfactant, preparing micro-nano bubbles containing the surfactant through a micro-nano bubble generator (2), and ejecting the micro-nano bubbles from a bubble nozzle (20); S2: Pour the granite tailings fine sand into the feed port (12), and under the action of the funnel-shaped screen (41) and the dispersing rod (412), the granite tailings fine sand is fully dispersed and fully contacted with the micro-nano bubbles; S3: According to the floating height of the mica and the distance at which it starts to settle, the angle and length of the telescopic plate (3) are adjusted, and the other tailings fine sand with a fast settling speed is discharged from the sand outlet (13), and the mica and mud with a slow settling speed are discharged from the water outlet (11).

7. The separation method of a granite tailings mica separation device according to claim 6, characterized in that: The surfactant is one or more of CTAB, sodium oleate, laurylamine or coconut amine.

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