A flotation device for ore dressing

Abstract

The utility model relates to the technical field of flotation, disclose a kind of flotation device for mineral separation, the utility model solves in the different area of flotation tank, the distribution density of bubble can exist difference, bubble is relatively dense in the place close to aeration point, and the area far from aeration point bubble is less, this makes the flotation condition of different position in whole ore pulp be not balanced, cause part target mineral to be not fully contacted bubble and cannot effectively float separation problem, and flotation box includes flotation shell, the lower end inside of flotation shell is equipped with circular groove, the inside rotation of circular groove is installed with blocking ring, the upper end of blocking ring is fixedly installed with blocking block, the inside of flotation shell is fixedly installed with multiple check valve one, the inside of blocking ring is fixedly installed with multiple blocking rods, the lower end of flotation shell is fixedly installed with multiple check valve two, in initial state, blocking rod and check valve two are attached, and blocking block and check valve one are away from each other.

Description

Technical Field

[0001] This utility model relates to the field of flotation technology, specifically to a flotation device for mineral processing. Background Technology

[0002] Flotation is a process in which chemical reagents are added to a pulp to make the particles to be separated hydrophobic, and then air is introduced into the pulp to carry the hydrophobic particles to the surface of the pulp to form stable foam and remove them. During flotation, the pulp is often stirred to further mix the chemical reagents and the pulp and to promote contact between the air and the pulp, thereby separating the desired hydrophobic particles from the pulp.

[0003] A Chinese patent with publication number CN218190293U discloses a flotation device for mineral processing. First, a slurry with mixed reagents is injected into the mineral processing box. An external power supply is connected, and a blower and a second motor are started. The blower works to allow air to be filtered through a filter box and then injected into the slurry through a third connecting pipe, a second connecting pipe, and a first connecting pipe to achieve the aeration step. The second motor drives the second motor shaft to rotate, and the second motor shaft drives the stirring fan blades to rotate, which can stir the slurry in the mineral processing box and make it fully mixed with the air bubbles.

[0004] Regarding the aforementioned technologies, when the stirring mechanism is stirring, the stirring intensity is greater near the stirring shaft, while the stirring is relatively weaker in the edge area of ​​the flotation cell. This results in inconsistent bonding between mineral particles and bubbles at different locations. At the same time, the distribution density of bubbles may vary in different areas of the flotation cell, with bubbles being relatively dense near the aeration point and fewer in areas far from the aeration point. This leads to uneven flotation conditions at different locations within the entire slurry, causing some target minerals to fail to float and separate effectively due to insufficient contact with bubbles. Utility Model Content

[0005] The purpose of this invention is to provide a flotation device for mineral processing. By using this device, the problem of varying bubble distribution density in different areas of the flotation cell can be solved. Bubbles are relatively dense near the aeration point, while fewer bubbles are found in areas far from the aeration point. This results in uneven flotation conditions at different locations in the entire slurry, causing some target minerals to fail to float and separate effectively due to insufficient contact with the bubbles.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A flotation device for mineral processing, comprising a flotation box, an air pump device installed on one side of the flotation box, a flotation shell, an L-shaped connecting plate installed at the upper end of the flotation shell, a rotating motor fixedly installed at the lower end of the L-shaped connecting plate, a stirring rod fixedly installed at the drive end of the rotating motor, a rotating disk fixedly installed at the lower end of the stirring rod, the rotating disk being rotatably connected to the flotation shell, a circular groove being formed inside the lower end of the flotation shell, a blocking ring being rotatably installed inside the circular groove, a blocking block being fixedly installed at the upper end of the blocking ring, and a blocking device being fixedly installed on the inner side of the flotation shell. Multiple sets of one-way valves are included. A blocking ring is located at the air inlet end of one-way valve and rotatably connected to it. Multiple blocking rods are fixedly installed inside the blocking ring. Multiple sets of one-way valves are fixedly installed at the lower end of the flotation shell. Blocking rods are located at the lower end of one-way valves and rotatably connected to them. All blocking rods are fixedly connected to the rotating disk. The blocking rods and blocking blocks are rotatably connected to the flotation shell within the circular groove. Initially, the blocking rods are in contact with one-way valves, and the blocking blocks are far from one-way valves. When the rotating motor starts to rotate, the stirring rod drives the rotating disk to rotate, causing the blocking rods and blocking blocks to alternately block one-way valves and one-way valves. When flotation of the slurry is required, the mixed slurry and reagents are first poured into the flotation tank, water is added to the tank, and the rotating motor is started. The motor drives the stirring rod to rotate, mixing the ore and reagents in the tank. After a period of mixing, the air pump is activated to aerate the inside of the tank, dispersing compressed air into tiny bubbles that are evenly distributed throughout the slurry. Mineral particles can adhere to these bubbles and float to the surface, allowing the gas to escape through check valves one and two, thus purging the liquid in the flotation tank. In bubble flotation, when gas is discharged into the flotation tank through one-way valves 1 and 2, the one-way valves 2 and 1 are alternately blocked by a blocking rod and a blocking block. This ensures that the gas enters the flotation tank in the following order: first, it passes through one-way valve 1 to process the slurry in the flotation tank; then, it passes through one-way valves 1 and 2 simultaneously to process the slurry; and finally, it passes through one-way valve 2 to process the slurry. When one set of one-way valves is closed, the pressure in the other set of one-way valves increases, resulting in a stronger impact force on the slurry in the flotation tank. This makes it easier for mineral particles to adhere to these bubbles, further completing the flotation operation.

[0007] Preferably, a drain valve is fixedly installed on the outer side of the flotation shell. The drain valve is located at the upper end of the circular trough. When it is necessary to discharge the slurry in the flotation tank, the slurry is discharged by opening the drain valve.

[0008] Preferably, the upper end of the flotation shell is provided with a flotation cell, which is fixedly connected to the flotation shell. Multiple sets of support legs are fixedly installed at the lower end of the flotation shell. A scraper assembly is installed through the interior of the stirring rod. The scraper assembly includes a scraper shell, which is fixedly connected to the stirring rod. Multiple sets of elastic elements are fixedly installed inside the scraper shell. An elastic scraper is fixedly installed at the lower end of each elastic element. Two sets of elastic scrapers are provided, both located inside the scraper shell. When the stirring rod starts to rotate, it drives the elastic scrapers to scrape along the inner wall of the flotation shell. The elastic scrapers scrape the foam containing mineral particles that floats to the surface of the slurry from the flotation cell and collect it in a dedicated foam sluice or collection tank, achieving preliminary separation of the target mineral. If the liquid level is not replenished in time due to the scraping by the elastic scrapers, the elastic elements keep the elastic scrapers below the liquid level, ensuring the flexibility of scraping foam containing mineral particles.

[0009] Preferably, a vent is provided at the connection between the flotation shell and the air pump device, and the vents are connected to each other. A circular hole is provided on the inner side of the flotation shell, which matches the rotating disk. The air pump device includes an air pump, and a connecting plate is fixedly installed at the lower end of the air pump. The connecting plate is fixedly connected to the flotation shell. A connecting pipe is fixedly installed at the output end of the air pump, and the connecting pipe matches the vent. After a period of stirring, the air pump device is started, and the air pump discharges gas from the vent into the circular tank to inflate the inside of the circular tank. The compressed air is dispersed into tiny bubbles, which are evenly distributed in the slurry in the flotation tank for flotation treatment.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] This utility model discloses a flotation device for mineral processing. When flotation of ore slurry is required, the mixed ore slurry and reagents are first poured into the flotation tank, water is added to the flotation tank, and the rotating motor is started. The rotating motor drives the stirring rod to rotate, mixing the ore sand and reagents in the flotation tank. After a period of stirring, the air pump device is started to aerate the inside of the circular tank, dispersing the compressed air into tiny bubbles, which are evenly distributed in the ore slurry in the flotation tank. Mineral particles can adhere to these bubbles and float to the surface of the ore slurry with the bubbles, allowing the gas to be discharged through one-way valves two and one-way valve one for flotation. The liquid inside the tank undergoes bubble flotation. When gas is discharged into the flotation tank through one-way valve 2 and one-way valve 1, the one-way valve 2 and one-way valve 1 are staggered and blocked by the blocking rod and blocking block. This ensures that the gas enters the flotation tank in the following order: first, it passes through one-way valve 1 to process the slurry in the flotation tank; then, it passes through one-way valve 2 and one-way valve 1 simultaneously to process the slurry in the flotation tank; and then, it passes through one-way valve 2 to process the slurry. When one set of one-way valves is closed, the pressure of the other set of one-way valves increases, and the impact force on the slurry in the flotation tank becomes stronger, making it easier for mineral particles to adhere to these bubbles, thus completing the flotation operation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the flotation box of this utility model.

[0013] Figure 2 This is a top view of the flotation tank structure of this utility model.

[0014] Figure 3 This is a schematic diagram of the internal structure of the flotation tank of this utility model.

[0015] Figure 4 This is a schematic diagram of the front structure of the flotation shell of this utility model.

[0016] Figure 5 This is a schematic diagram of the back structure of the flotation shell of this utility model.

[0017] Figure 6 This is a schematic diagram of the planar structure of the scraper assembly of this utility model.

[0018] Figure 7 This is a schematic diagram of the external structure of the flotation tank of this utility model.

[0019] In the diagram: 1. Flotation tank; 11. Flotation shell; 111. Drain valve; 112. Circular groove; 113. Circular hole; 114. One-way valve II; 115. One-way valve I; 116. Vent hole; 12. L-shaped connecting plate; 13. Flotation cell; 14. Rotary motor; 15. Scraper assembly; 151. Scraper shell; 152. Elastic component; 153. Elastic scraper; 16. Support leg; 17. Stirring rod; 171. Rotating disk; 18. Baffle ring; 181. Baffle block; 182. Baffle rod; 2. Air pump device; 21. Air pump; 22. Connecting plate; 23. Connecting pipe. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0022] Combination Figure 1-4A flotation device for mineral processing includes a flotation tank 1, an air pump 2 installed on one side of the flotation tank 1, a flotation shell 11, an L-shaped connecting plate 12 installed at the upper end of the flotation shell 11, a rotary motor 14 fixedly installed at the lower end of the L-shaped connecting plate 12, a stirring rod 17 fixedly installed at the drive end of the rotary motor 14, a rotating disk 171 fixedly installed at the lower end of the stirring rod 17, the rotating disk 171 being rotatably connected to the flotation shell 11, a circular groove 112 being formed inside the lower end of the flotation shell 11, a blocking ring 18 being rotatably installed inside the circular groove 112, a blocking block 181 fixedly installed at the upper end of the blocking ring 18, and multiple sets of one-way valves 115 fixedly installed on the inner side of the flotation shell 11. A set of blocking rods 182 is fixedly installed on the inner side of the blocking ring 18 at the air inlet end of the one-way valve 115 and rotatably connected thereto. A set of one-way valves 114 is fixedly installed at the lower end of the flotation shell 11. The blocking rods 182 are located at the lower end of the one-way valves 114 and rotatably connected thereto. All the blocking rods 182 are fixedly connected to the rotating disk 171. The blocking rods 182 and the blocking blocks 181 are rotatably connected to the flotation shell 11 within the circular groove 112. In the initial state, the blocking rods 182 are in contact with the one-way valves 114, and the blocking blocks 181 are far away from the one-way valves 115. When the rotating motor 14 starts to rotate, the stirring rod 17 drives the rotating disk 171 to rotate, so that the blocking rods 182 and the blocking blocks 181 are in one-way contact. Valve 114 and check valve 115 alternately block and open. When flotation of the slurry is required, the mixed slurry and reagents are first poured into the flotation tank 1, water is added to the flotation tank 1, and the rotating motor 14 is started. The rotating motor 14 drives the stirring rod 17 to rotate, mixing and stirring the ore and reagents in the flotation tank 1. After a period of stirring, the air pump 2 is started to aerate the inside of the circular tank 112, dispersing the compressed air into tiny bubbles, which are evenly distributed in the slurry in the flotation tank 1. Mineral particles can adhere to these bubbles and float to the surface of the slurry with the bubbles, allowing the gas to be discharged through check valve 114 and check valve 115 into the liquid in the flotation tank 1. In bubble flotation, when gas is discharged into flotation tank 1 through one-way valve 2 114 and one-way valve 115, the one-way valve 2 114 and one-way valve 115 are staggered by the blocking rod 182 and the blocking block 181. This ensures that the gas enters flotation tank 1 in the following order: first, it passes through one-way valve 115 to process the slurry in flotation tank 1; then, it passes through one-way valve 2 114 and one-way valve 115 simultaneously to process the slurry in flotation tank 1; and then, it passes through one-way valve 2 114 to process the slurry. When one set of one-way valves is closed, the pressure of the other set of one-way valves increases, resulting in a stronger impact force on the slurry in flotation tank 1. This makes it easier for mineral particles to adhere to these bubbles, further completing the flotation operation.

[0023] Combination Figure 1-2A drain valve 111 is fixedly installed on the outside of the flotation shell 11. The drain valve 111 is located at the upper end of the circular trough 112. When it is necessary to discharge the slurry in the flotation box 1, the slurry is discharged by opening the drain valve 111.

[0024] Combination Figure 2 , Figure 6 A flotation tank 13 is provided at the upper end of the flotation shell 11, and the flotation tank 13 is fixedly connected to the flotation shell 11. Multiple sets of support legs 16 are fixedly installed at the lower end of the flotation shell 11. A scraper assembly 15 is installed through the inside of the stirring rod 17. The scraper assembly 15 includes a scraper shell 151, which is fixedly connected to the stirring rod 17. Multiple sets of elastic elements 152 are fixedly installed inside the scraper shell 151. An elastic scraper 153 is fixedly installed at the lower end of the elastic element 152. Two sets of elastic scrapers 153 are provided, both located within the scraper shell 151. Inside flotation tank 11, when stirring rod 17 starts to rotate, it drives elastic scraper 153 to hang along the inner wall of flotation shell 11. The elastic scraper 153 scrapes the foam containing mineral particles that floats to the surface of the slurry from flotation tank 13 and collects it into a special foam sluice or collection tank, thus achieving the initial separation of the target mineral. When the liquid level is not replenished in time due to scraping by elastic scraper 153, the elastic element 152 keeps the elastic scraper 153 below the liquid level, ensuring the flexibility of scraping foam containing mineral particles.

[0025] Combination Figure 2 , Figure 4-5 , Figure 7 A vent 116 is provided at the connection between the flotation shell 11 and the air pump device 2. The vent 116 is connected to the air pump device 2. A circular hole 113 is provided on the inner side of the flotation shell 11. The circular hole 113 matches the rotating disk 171. The air pump device 2 includes an air pump 21. A connecting plate 22 is fixedly installed at the lower end of the air pump 21. The connecting plate 22 is fixedly connected to the flotation shell 11. A connecting pipe 23 is fixedly installed at the output end of the air pump 21. The connecting pipe 23 matches the vent 116. After a period of stirring, the air pump device 2 is started. The air pump 21 discharges gas from the vent 116 into the circular trough 112 to purge the inside of the circular trough 112. The compressed air is dispersed into tiny bubbles and evenly distributed in the slurry in the flotation box 1 for flotation treatment.

[0026] Working principle: First, the mixed slurry and reagents are poured into the flotation tank 1 and water is added. Then, the rotating motor 14 is started to drive the stirring rod 17 to rotate, mixing the ore and reagents. After a period of time, the air pump device 2 is started to fill the circular trough 112 with air through the air vent 116. The gas is discharged through the one-way valve 114 and the one-way valve 115. Under the action of the rotating disk 171, the blocking rod 182 and the blocking block 181, the one-way valves are opened and closed alternately, so that the gas first passes through the one-way valve 115, then through the one-way valve 114 and the one-way valve 115 simultaneously, and finally through the one-way valve 114 to enter the flotation tank 1 in sequence, which enhances the impact force on the slurry to facilitate the attachment of mineral particles to bubbles. At the same time, the rotation of the stirring rod 17 drives the elastic scraper 153 of the scraper assembly 15 to scrape the foam with mineral particles along the inner wall of the flotation shell 11, realizing the initial separation of the target minerals. Finally, the slurry in the flotation tank 1 is discharged by opening the drain valve 111 to complete the flotation operation.

[0027] 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.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flotation device for mineral processing, comprising a flotation box (1), an air pump device (2) installed on one side of the flotation box (1), the flotation box (1) comprising a flotation shell (11), an L-shaped connecting plate (12) installed at the upper end of the flotation shell (11), a rotary motor (14) fixedly installed at the lower end of the L-shaped connecting plate (12), a stirring rod (17) fixedly installed at the drive end of the rotary motor (14), a rotating disk (171) fixedly installed at the lower end of the stirring rod (17), and the rotating disk (171) being rotatably connected to the flotation shell (11), characterized in that: The lower end of the flotation shell (11) is provided with a circular groove (112). A blocking ring (18) is rotatably installed inside the circular groove (112). A blocking block (181) is fixedly installed at the upper end of the blocking ring (18). Multiple sets of one-way valves (115) are fixedly installed on the inner side of the flotation shell (11). The blocking ring (18) is located at the air inlet end of the one-way valve (115) and is rotatably connected to it. Multiple sets of blocking rods (182) are fixedly installed on the inner side of the blocking ring (18). Multiple sets of one-way valves (114) are fixedly installed at the lower end of the flotation shell (11). The blocking rods (182) are located at the lower end of the one-way valves (114) and are rotatably connected to it. Multiple sets of blocking rods (182) are fixedly connected to the rotating disk (171). The blocking rods (182) and the blocking block (181) are rotatably connected to the flotation shell (11) inside the circular groove (112). In the initial state, the blocking rod (182) is in contact with the one-way valve 2 (114), and the blocking block (181) is far away from the one-way valve 1 (115). When the rotating motor (14) starts to rotate, the stirring rod (17) drives the rotating disk (171) to rotate, so that the blocking rod (182) and the blocking block (181) alternately block and open the one-way valve 2 (114) and the one-way valve 1 (115).

2. The flotation device for mineral processing according to claim 1, characterized in that: A drain valve (111) is fixedly installed on the outside of the flotation shell (11), and the drain valve (111) is located at the upper end of the circular groove (112).

3. A flotation device for mineral processing according to claim 2, characterized in that: The upper end of the flotation shell (11) is provided with a flotation tank (13), which is fixedly connected to the flotation shell (11). Multiple sets of support legs (16) are fixedly installed at the lower end of the flotation shell (11).

4. A flotation device for mineral processing according to claim 1, characterized in that: The stirring rod (17) is internally fitted with a scraper assembly (15). The scraper assembly (15) includes a scraper shell (151). The scraper shell (151) is fixedly connected to the stirring rod (17). Multiple sets of elastic elements (152) are fixedly installed inside the scraper shell (151). An elastic scraper (153) is fixedly installed at the lower end of the elastic element (152). There are two sets of elastic scrapers (153), both of which are located inside the scraper shell (151).

5. A flotation device for mineral processing according to claim 4, characterized in that: A vent hole (116) is provided at the connection between the flotation shell (11) and the air pump device (2). The vent holes (116) are connected to each other. A round hole (113) is provided on the inner side of the flotation shell (11). The round hole (113) matches the rotating disk (171).

6. A flotation device for mineral processing according to claim 1, characterized in that: The air pump device (2) includes an air pump (21), a connecting plate (22) is fixedly installed at the lower end of the air pump (21), the connecting plate (22) is fixedly connected to the flotation shell (11), and a connecting pipe (23) is fixedly installed at the output end of the air pump (21), the connecting pipe (23) is matched with the air vent (116).

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