Tantalum-niobium ore flotation equipment

Abstract

The invention relates to the field of ore flotation, in particular to tantalum-niobium ore flotation equipment. The tantalum mud ore flotation equipment has the defects that the tantalum mud ore attached to foam sinks into ore pulp again due to the fact that the tantalum mud ore is prone to remaining on a discharging ramp, and the tantalum mud ore flotation efficiency is low due to the fact that paddles of existing tantalum mud ore flotation equipment are prone to collecting and dispersing foam. Tantalum-niobium ore flotation equipment comprises a support and the like. A flotation box is fixedly connected to the support, two lifting sliding grooves are formed in the inner wall of the flotation box, a discharging inclined face is arranged at the bottom of the inner wall of the flotation box, and a discharging opening is formed in the bottom of the discharging inclined face on the flotation box. Ore pulp and a collecting agent in the stirring barrel are continuously mixed through the six sets of foaming screen plates, the foaming effect of the collecting agent can be better, the flotation efficiency of tantalum mud ore is improved, meanwhile, the scraping plate can be lifted upwards after scraping floating foam, the situation that the floating foam on the surface of the ore pulp is scraped in the reset process is avoided, and the flotation efficiency of tantalum mud ore is improved. Therefore, the situation that the tantalum mud ore sinks into the ore pulp again due to the fact that the scraper crashes floating foam can be reduced.

Description

Technical Field

[0001] This invention relates to the field of ore flotation, and more particularly to a flotation device for tantalum and niobium ore. Background Art

[0002] Tantalum-niobium ore refers to minerals containing the two metallic elements tantalum and niobium. Because tantalum and niobium have very similar chemical properties, they often occur together. Therefore, they must be separated using methods such as flotation, gravity separation, magnetic separation, and chemical treatment. Flotation involves using specific reagents (such as collectors and frothers) to selectively attach tantalum-niobium minerals to air bubbles, which then rise to the surface of the slurry, forming foam and thus separating them from gangue minerals.

[0003] However, most current tantalum ore flotation equipment uses paddles to scrape off the foam floating on the surface of the slurry. But the rotation of the paddles easily disperses the foam, causing the tantalum ore attached to the foam to sink back into the slurry. Furthermore, the scraped-off foam is discharged through the inclined feed ramp under the action of gravity, and foam residue is easily left on the feed ramp. This results in incomplete discharge of tantalum ore, requiring manual cleaning of the feed ramp by the staff, which in turn leads to low flotation efficiency of tantalum ore. Summary of the Invention

[0004] In view of the shortcomings or deficiencies of the prior art, the present invention provides a flotation device for tantalum and niobium ore, which can reduce the occurrence of foam being dispersed by the scraper, and can also make the tantalum ore feed more thoroughly, thereby improving the flotation efficiency of tantalum ore.

[0005] A flotation device for tantalum-niobium ore includes a support frame, a flotation box, a stirring drum, a dual-shaft motor, a bevel gear set, and a skimmer mechanism. The flotation box is fixedly connected to the support frame. Two lifting grooves are formed on the inner wall of the flotation box. A feeding ramp is provided at the bottom of the inner wall of the flotation box, and a feeding port is formed at the bottom of the feeding ramp. The stirring drum is fixedly connected to the flotation box. The dual-shaft motor is fixedly connected between the support frame and the flotation box. A roller is rotatably connected inside the stirring drum, and twenty-four foaming mesh plates are rotatably connected to the roller. Four foaming mesh plates located in the same vertical direction form a group. A fixed shaft is fixedly connected to the inner wall of the stirring drum. The fixed shaft is located inside the roller shaft, and six bevel gear discs are fixedly connected to the fixed shaft. Each group of four foaming mesh plates has a drive bevel gear fixedly connected to one end of each other. The four drive bevel gears located in the same vertical direction form a group. The six groups of drive bevel gears mesh with the six bevel gear discs respectively. A bevel gear group is connected between the dual-axis motor and the roller shaft. The bevel gear group consists of a drive bevel gear and a transmission bevel gear. A drive bevel gear is fixedly connected to one of the output shafts of the dual-axis motor. A transmission bevel gear is fixedly connected to one end of the roller shaft. The drive bevel gear meshes with the transmission bevel gear. A skimming mechanism is provided on the flotation box.

[0006] Furthermore, the skimming mechanism includes chute plates. Two chute plates are fixedly connected to the top of the flotation tank, and the two chute plates are symmetrically arranged. Each chute plate has a guide groove. Two rack chains are placed on the top of the flotation tank, with their ends located in the guide grooves on the two chute plates respectively. Lifting blocks are fixedly connected to each rack chain, and a scraper is slidably connected between the two lifting blocks. The bottom of the scraper contacts the top of the stirring cylinder, and protrusions are fixedly connected to both sides of the scraper. The two protrusions are located on two different parts of the flotation tank. Inside the lifting chute, two inclined blocks are slidably connected to each of the two lifting chute on the flotation box. A return spring is connected between the flotation box and each of the four inclined blocks. A rotating shaft is rotatably connected to the upper part of the flotation box. Two drive gears are fixedly connected to the rotating shaft. The two drive gears are symmetrically arranged. A transmission assembly is connected between the rotating shaft and the dual-axis motor. The transmission assembly consists of a drive pulley, a transmission pulley, and a belt. A drive pulley is fixedly connected to another output shaft of the dual-axis motor. A transmission pulley is fixedly connected to one end of the rotating shaft. A belt is fitted between the drive pulley and the transmission pulley.

[0007] Furthermore, it also includes a feeding mechanism, which is mounted on the flotation tank. The feeding mechanism includes a one-way bearing, which is fixedly connected to the rotating shaft. A two-way lead screw is fixedly connected to the one-way bearing. A threaded block is threadedly connected to the two-way lead screw. The threaded block is slidably connected to the flotation tank. A pusher is fixedly connected to the threaded block. A feeding plate is slidably connected to the pusher. Four compression springs are connected between the feeding plate and the pusher.

[0008] Beneficial effects: The staff feeds the slurry and collector into the mixing drum, and then starts the dual-shaft motor. The slurry and collector in the mixing drum are continuously mixed by six sets of foaming mesh plates, which can improve the foaming effect of the collector and improve the flotation efficiency of tantalum ore. At the same time, the scraper will rise after scraping off the foam, so as to avoid scraping the foam on the surface of the slurry during the resetting process. This can reduce the occurrence of the tantalum ore re-sinking into the slurry due to the scraper breaking the foam.

[0009] When the dual-axis motor drives the rotating shaft to rotate, the reciprocating movement of the pusher will drive the feeding plate to reciprocate. The reciprocating movement of the feeding plate will push the foam located on the feeding ramp inside the flotation box through the feeding port for feeding. The bottom of the feeding plate is always in contact with the feeding ramp inside the flotation box. In this way, the foam on the feeding ramp inside the flotation box can be pushed out by the feeding plate during the scraper reset process, thereby preventing the tantalum ore from remaining on the feeding ramp inside the flotation box after the foam is broken, making the foam on the feeding ramp inside the flotation box more thoroughly discharged. Attached Figure Description

[0010] Figure 1 A three-dimensional structural diagram of the present invention.

[0011] Figure 2 A partial three-dimensional structural schematic diagram of the feeding mechanism of this invention.

[0012] Figure 3 A cross-sectional three-dimensional structural schematic diagram of the flotation box, inclined block, and reset spring of the present invention.

[0013] Figure 4 A cross-sectional three-dimensional structural schematic diagram of the flotation tank, stirring cylinder, and inclined block of the present invention.

[0014] Figure 5 A partial cross-sectional three-dimensional structural schematic diagram of the skimming mechanism of the present invention.

[0015] Figure 6 A three-dimensional structural diagram of the scraper and protrusion of this invention.

[0016] Figure 7 A three-dimensional structural diagram of the rack chain and lifting block of the present invention.

[0017] Figure 8A three-dimensional structural diagram of the slide plate and rack chain of the present invention.

[0018] Figure 9 The present invention Figure 5 A magnified three-dimensional structural diagram of A in the middle.

[0019] Figure 10 A three-dimensional structural diagram of the rotating shaft, one-way bearing, and two-way lead screw of this invention.

[0020] Figure 11 A partially disassembled cross-sectional three-dimensional structural schematic diagram of the feeding mechanism of this invention.

[0021] Figure 12 A three-dimensional structural diagram of the roller and foaming mesh of the present invention.

[0022] Reference numerals: 1-Support, 2-Flotation box, 3-Agitator, 4-Dual-shaft motor, 51-Roller, 52-Foaming mesh, 53-Fixed shaft, 54-Bevel gear disc, 55-Drive bevel gear, 6-Bevel gear set, 7-Foam scraping mechanism, 71-Slide plate, 72-Rack chain, 73-Lifting block, 74-Scraper, 741-Protrusion, 742-Inclined block, 743-Reset spring, 75-Rotating shaft, 76-Drive gear, 77-Transmission assembly, 8-Discharge mechanism, 81-One-way bearing, 82-Two-way lead screw, 83-Threaded block, 84-Push frame, 85-Discharge plate, 86-Compression spring. DETAILED DESCRIPTION

[0023] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, welding, and bonding that are mature in the prior art, and will not be described in detail here.

[0024] Example 1

[0025] A flotation device for tantalum and niobium ore, such as Figures 1-12As shown, the system includes a support frame 1, on which a flotation tank 2 is fixedly connected. Two lifting grooves are formed on the inner wall of the flotation tank 2. A feeding ramp is provided at the bottom of the inner wall of the flotation tank 2, and a feeding port is formed at the bottom of the feeding ramp. A stirring drum 3 is fixedly connected to the flotation tank 2. A dual-shaft motor 4 is bolted between the support frame 1 and the flotation tank 2. A roller shaft 51 is rotatably connected inside the stirring drum 3. Twenty-four foaming mesh plates 52 are rotatably connected to the roller shaft 51. Four foaming mesh plates 52 located in the same vertical direction form a group. A fixed shaft 53 is welded to the inner wall of the stirring drum 3. The fixed shaft 53 is located inside the roller shaft 51 and is connected to a key via a... Six bevel gear discs 54, each group of four foaming mesh plates 52 are connected to a drive bevel gear 55 at their closest points via a flat key. Four drive bevel gears 55 located in the same vertical direction form a group. The six groups of drive bevel gears 55 mesh with the six bevel gear discs 54 respectively. A bevel gear set 6 is connected between the dual-shaft motor 4 and the roller shaft 51. The bevel gear set 6 consists of a drive bevel gear and a transmission bevel gear. A drive bevel gear is connected to one of the output shafts of the dual-shaft motor 4 via a flat key. One end of the roller shaft 51 is connected to a transmission bevel gear via a flat key. The drive bevel gear meshes with the transmission bevel gear. A skimming mechanism is provided on the flotation box 2. The skimming mechanism is used to skim off the foam attached to the tantalum ore.

[0026] The skimming mechanism includes a chute plate 71. Two chute plates 71 are welded to the top of the flotation tank 2, and the two chute plates 71 are symmetrically arranged. Each chute plate 71 has a guide groove. Two rack chains 72 are placed on the top of the flotation tank 2. The ends of the two rack chains 72 that are far apart from each other are located in the guide grooves on the two chute plates 71. Lifting blocks 73 are fixedly connected to each of the two rack chains 72. A scraper 74 is slidably connected between the two lifting blocks 73. The bottom of the scraper 74 contacts the top of the stirring cylinder 3. Protrusions 741 are welded to both sides of the scraper 74, and the two protrusions 741 are located in the two lifting grooves on the flotation tank 2, respectively. Two inclined blocks 742 are slidably connected to the two lifting chute on the flotation tank 2. The flotation tank 2 and the four inclined blocks 742 are connected to a return spring 743 by a hook. A rotating shaft 75 is rotatably connected to the upper part of the flotation tank 2. Two drive gears 76 are connected to the rotating shaft 75 by a flat key. The two drive gears 76 are symmetrically arranged. A transmission assembly 77 is connected between the rotating shaft 75 and the dual-axis motor 4. The transmission assembly 77 consists of a drive pulley, a transmission pulley and a belt. A drive pulley is connected to the other output shaft of the dual-axis motor 4 by a flat key. One end of the rotating shaft 75 is connected to the transmission pulley by a flat key. A belt is fitted between the drive pulley and the transmission pulley.

[0027] First, the workers introduce the slurry and collector into the mixing drum 3, then start the dual-shaft motor 4. One output shaft of the dual-shaft motor 4 drives the bevel gear set 6 to rotate. The rotation of the bevel gear set 6 drives the roller shaft 51 to rotate. The rotation of the roller shaft 51 drives all six sets of foaming mesh plates 52 to rotate. The rotation of the six sets of foaming mesh plates 52 drives all six sets of drive bevel gears 55 to rotate. The rotation of the drive gear 76 causes it to rotate under the action of the bevel gear disc 54. The rotation of the drive gear 76 drives the foaming mesh plates 52 to rotate. Thus, the six sets of foaming mesh plates 52 rotate during their rotation, thereby stirring and foaming the tantalum ore in the mixing drum 3. The tantalum ore in the slurry adheres to the foam in the slurry and floats to the surface of the slurry. Then, the dual-shaft motor... Another output shaft of machine 4 drives transmission assembly 77 to rotate. The rotation of transmission assembly 77 drives shaft 75 to rotate, which in turn drives two drive gears 76 to rotate. The rotation of drive gears 76 drives rack chain 72 to rotate, which in turn drives lifting block 73 to move horizontally. The horizontal movement of the two lifting blocks 73 together drives scraper 74 to move horizontally. The horizontal movement of scraper 74 drives two protrusions 741 to move horizontally along the lifting chute on the two flotation boxes 2 respectively. Scraper 74 scrapes the foam floating on the surface of the slurry into the flotation box 2. Then, the two protrusions 741 contact two inclined blocks 742 respectively, and the two protrusions 741 squeeze the two inclined blocks 742 away from each other. As the flotation tank 2 moves in one direction, the scraper 74 and the two protrusions 741 move obliquely upward under the action of the lifting chute. The scraper 74 disengages from the top of the stirring drum 3. After the froth falls into the flotation tank 2, it flows along the feeding slope inside the flotation tank 2 and is discharged through the feeding port on the flotation tank 2. Then, the other output shaft of the dual-shaft motor 4 drives the scraper 74 and the two protrusions 741 to move horizontally in the opposite direction. The two protrusions 741 disengage from two of the inclined blocks 742 respectively, and the return spring 743 returns to its original position. The two inclined blocks 742 move towards each other to return to their original position. Then, the two protrusions 741 contact the other two inclined blocks 742 respectively, and the two protrusions 741 squeeze the other two... The inclined blocks 742 move away from each other, the reset spring 743 is compressed, and the two protrusions 741 drive the scraper 74 to move diagonally downward along the lifting chute on the flotation box 2 to reset. The protrusions 741 will disengage from the inclined blocks 742, and the reset spring 743 will drive the two inclined blocks 742 to move closer to each other to reset. This process is repeated. The slurry and collector in the stirring drum 3 are continuously mixed by the six sets of foaming mesh plates 52, which can improve the foaming effect of the collector and improve the flotation efficiency of tantalum ore. At the same time, the scraper 74 will rise after scraping off the foam to avoid scraping the foam on the surface of the slurry during the reset process, thereby reducing the occurrence of the scraper 74 breaking the foam and causing the tantalum ore to sink back into the slurry.

[0028] Example 2

[0029] On the basis of Example 1, Figures 2-11 As shown, it also includes a feeding mechanism, which is mounted on the flotation tank 2. The feeding mechanism includes a one-way bearing 81, which is bolted to the rotating shaft 75. A two-way lead screw 82 is connected to the one-way bearing 81 via a flat key. A threaded block 83 is threadedly connected to the two-way lead screw 82. The threaded block 83 is slidably connected to the flotation tank 2. A pusher 84 is welded to the threaded block 83. A feeding plate 85 is slidably connected to the pusher 84. Four compression springs 86 are connected between the feeding plate 85 and the pusher 84 via hooks.

[0030] Initially, the feed ramp inside flotation tank 2 presses against the feed plate 85, and the compression spring 86 is compressed. When the dual-shaft motor 4 drives the rotating shaft 75 to rotate, the rotating shaft 75 drives the one-way bearing 81 to rotate. Under the action of the one-way bearing 81, the double-direction screw 82 does not rotate. When the dual-shaft motor 4 drives the rotating shaft 75 to rotate in the opposite direction, the rotating shaft 75 drives the one-way bearing 81 to rotate, and the one-way bearing 81 drives the double-direction screw 82 to rotate. The rotation of the double-direction screw 82 drives the threaded block 83 to reciprocate through the thread. The reciprocating movement of the threaded block 83 drives the pusher 84 to reciprocate. The reciprocating movement of the pusher 84 drives the feed plate 85 to reciprocate. The reciprocating movement of the feed plate 85 pushes the foam located on the feed ramp inside flotation tank 2 through the feed port. During feeding, as the feeding plate 85 moves towards the lower slope of the feeding ramp inside the flotation box 2, the compression spring 86 gradually rebounds. This rebound causes the feeding plate 85 to move downwards, ensuring that the bottom of the feeding plate 85 remains in contact with the feeding ramp inside the flotation box 2. When the feeding plate 85 moves towards the upper slope of the feeding ramp inside the flotation box 2, the feeding ramp inside the flotation box 2 will again compress the feeding plate 85 upwards, causing the compression spring 86 to be compressed again. In this way, during the reset process of the scraper 74, the feeding plate 85 pushes the foam on the feeding ramp inside the flotation box 2 to be discharged, thus preventing the tantalum ore from remaining on the feeding ramp inside the flotation box 2 after the foam is broken, resulting in a more thorough discharge of the foam from the feeding ramp inside the flotation box 2.

[0031] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A tantalum-niobium ore flotation equipment, characterized in that: The invention comprises a support (1), a flotation box (2), a mixing drum (3), a double-shaft motor (4), a bevel gear set (6) and a foam scraping mechanism (7); the support (1) is fixedly connected to the flotation box (2); the flotation box (2) is fixedly connected to the mixing drum (3); the support (1) and the flotation box (2) are fixedly connected to the double-shaft motor (4); a roller (51) is rotatably connected inside the mixing drum (3); twenty-four foaming mesh plates (52) are rotatably connected to the roller (51); four foaming mesh plates (52) located in the same vertical direction form a group; a fixed shaft (53) is fixedly connected to the inner wall of the mixing drum (3); the fixed shaft (53) is located inside the roller (51); the fixed shaft (53) is fixedly connected to the inner wall of the mixing drum (3); the fixed shaft (53) is located inside the roller (51); the fixed shaft (5 3) are fixedly connected with six bevel gear discs (54), and the ends of the four foaming mesh plates (52) in each group that are close to each other are fixedly connected with a driving bevel gear (55). The four driving bevel gears (55) located in the same vertical direction form a group. The six groups of driving bevel gears (55) are respectively meshed with the six bevel gear discs (54). A bevel gear group (6) is connected between the dual-axis motor (4) and the roller shaft (51). The bevel gear group (6) is composed of a driving bevel gear and a transmission bevel gear. A driving bevel gear is fixedly connected to one of the output shafts of the dual-axis motor (4). The transmission bevel gear is fixedly connected to one end of the roller shaft (51). The driving bevel gear meshes with the transmission bevel gear. A foam scraping mechanism is provided on the flotation box (2).

2. A tantalum-niobium ore flotation equipment according to claim 1, characterized in that: Two lifting chutes are provided on the inner wall of the flotation box (2), a material discharge slope is provided at the bottom of the inner wall of the flotation box (2), and a material discharge port is provided at the bottom of the material discharge slope on the flotation box (2).

3. The tantalum-niobium ore flotation equipment according to claim 1, characterized in that: The froth scraping mechanism comprises a chute plate (71), two chute plates (71) are fixedly connected to the top of the flotation box (2), the two chute plates (71) are symmetrically arranged, and both of the chute plates (71) are provided with guide chute grooves. Two rack chains (72) are placed on the top of the flotation box (2), and the ends of the two rack chains (72) that are away from each other are respectively located in the guide chute grooves on the two chute plates (71). The two rack chains (72) are fixedly connected with lifting blocks (73), and a scraper (74) is slidably connected between the two lifting blocks (73). The bottom of the scraper (74) contacts the top of the mixing drum (3). The scraper (74) Both sides are fixedly connected with protrusions (741), and the two protrusions (741) are respectively located in two lifting chutes on the flotation box (2), and two inclined blocks (742) are slidably connected in the two lifting chutes on the flotation box (2), and a return spring (743) is connected between the flotation box (2) and the four inclined blocks (742). The upper part of the flotation box (2) is rotatably connected with a rotating shaft (75), and two driving gears (76) are fixedly connected to the rotating shaft (75), and the two driving gears (76) are symmetrically arranged. A transmission component (77) is connected between the rotating shaft (75) and the dual-axis motor (4).

4. The tantalum-niobium ore flotation equipment according to claim 1, characterized in that: The transmission assembly (77) consists of a driving pulley, a transmission pulley and a belt. The other output shaft of the dual-axis motor (4) is fixedly connected to the driving pulley. One end of the rotating shaft (75) is fixedly connected to the transmission pulley. A belt is sleeved between the driving pulley and the transmission pulley.

5. The tantalum-niobium ore flotation equipment according to claim 1, characterized in that: The invention also comprises a feeding mechanism, which is arranged on the flotation box (2), and comprises a one-way bearing (81). The rotating shaft (75) is fixedly connected with the one-way bearing (81), and the one-way bearing (81) is fixedly connected with a bidirectional screw rod (82), and the bidirectional screw rod (82) is connected with a thread block (83) by threading, and the thread block (83) is slidably connected to the flotation box (2), and the thread block (83) is fixedly connected with a push frame (84), and the push frame (84) is slidably connected with a feeding plate (85), and four compression springs (86) are connected between the feeding plate (85) and the push frame (84).

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