Efficient mechanical stirring type flotation machine

Abstract

The utility model provides an efficient mechanical stirring type flotation machine, belongs to the technical field of flotation machines, and solves the problem that an air outlet hole is easy to block in the prior art. The device comprises a barrel body, a support is arranged on the barrel body, a hollow shaft is rotationally arranged on the support, a driven gear sleeves the hollow shaft, a first motor is installed on the support, the first motor is connected with a driving gear, a fixing frame is arranged on the support, an air inlet pipe is connected to the fixing frame, an air outlet hole is formed in the lower end of the hollow shaft, and an arc-shaped plate is arranged on the outer side of the hollow shaft. The inner side of the arc-shaped plate is connected with a spring, and a fixing plate connected with the spring is fixedly arranged in the hollow shaft. When the hollow shaft rotates to stir ore pulp, air enters the hollow shaft through the air inlet pipe and is discharged into the ore pulp in the barrel body from the air outlet hole in the lower end, and when the air is not inflated, the arc-shaped plate is attached to the outer wall of the hollow shaft under the pulling action of the spring and blocks the air outlet hole, so that automatic blocking of the air outlet hole is achieved; ore pulp is prevented from entering the hollow shaft to block the air outlet.

Description

Technical Field

[0001] The utility model belongs to the technical field of flotation machines, in particular to a highly efficient mechanical stirring flotation machine. Background Art

[0002] Flotation machine is a mechanical device that completes the flotation process. In the flotation machine, the pulp treated with reagents is stirred and aerated, so that some of the mineral particles are selectively fixed on the bubbles; these mineral particles float to the surface of the pulp and are scraped out to form foam products, and the rest are retained in the pulp, thereby achieving the purpose of separating minerals. Among them, the mechanical stirring flotation machine is the most commonly used type. Its principle is: the motor drives the impeller to rotate through the V-belt drive, generating a centrifugal effect to form a negative pressure, on the one hand, inhaling sufficient air to mix with the pulp, on the other hand, stirring the pulp and mixing with the drugs, and at the same time refining the foam, so that the minerals are bonded to the foam, floating to the surface of the pulp and then forming mineralized foam. Because the mechanical stirring flotation machine uses self-priming to inhale air, its inflation volume is small, which affects the flotation effect.

[0003] In the prior art, a channel is set in the stirring shaft of the mechanical stirring flotation machine, and air is inflated into the channel, and the gas is discharged from the air outlet at the lower end of the stirring shaft to solve the problem of low air volume due to self-absorption and achieve efficient flotation. However, this method can only be inflated continuously. If the inflation is stopped, the slurry in the flotation machine will enter the air outlet, and the mineral powder in the slurry will settle and block the air outlet, resulting in a decrease in the subsequent inflation volume, affecting the flotation effect. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide an efficient mechanical stirring flotation machine. When the hollow shaft rotates to stir the ore pulp, the gas enters the hollow shaft through the air inlet pipe and is discharged into the ore pulp in the barrel from the air outlet at the lower end. When not inflated, the arc plate adheres to the outer wall of the hollow shaft under the pulling action of the spring and blocks the air outlet, thereby realizing automatic blocking of the air outlet and preventing the ore pulp from entering the hollow shaft and blocking the air outlet.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A highly efficient mechanical stirring flotation machine comprises a barrel body, a bracket is arranged on the barrel body, a hollow shaft located on the axis of the barrel body is rotatably arranged on the bracket, a driven gear is fixedly sleeved on the hollow shaft, a first motor is installed on the bracket, the first motor is connected to a driving gear meshing with the driven gear, a fixing frame is fixedly arranged on the bracket, an air inlet pipe rotatably sealed with the hollow shaft is fixedly connected to the fixing frame, an air outlet hole is opened at the lower end of the hollow shaft, an arc plate for blocking the air outlet hole is arranged on the outer side of the hollow shaft, a spring extending from the air outlet hole into the hollow shaft is connected to the inner side of the arc plate, and a fixing plate connected to the spring is fixedly arranged in the hollow shaft.

[0007] Preferably, one side of the barrel body is connected to a collecting tank, a second motor is arranged on the collecting tank, and an output shaft of the second motor is connected to a foam scraper.

[0008] Preferably, the bracket is connected to a liquid level sensor extending into the barrel body.

[0009] Preferably, a stirring plate is connected to the hollow shaft.

[0010] Preferably, the stirring plate is provided with a plurality of through holes.

[0011] Preferably, the stirring plate is connected to a scraper in contact with the inner wall of the barrel.

[0012] Preferably, the bottom of the barrel body is connected with a vertical pipe, a sealing head is slidably arranged in the vertical pipe, the bottom of the sealing head is connected with a telescopic device, and the vertical pipe is connected with an inclined discharge pipe.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0014] When the hollow shaft rotates to stir the ore slurry, gas enters the hollow shaft through the air inlet pipe and is discharged into the ore slurry in the barrel from the air outlet at the lower end. When not inflated, the arc plate adheres to the outer wall of the hollow shaft under the pulling action of the spring and blocks the air outlet, thereby realizing automatic blocking of the air outlet and preventing the ore slurry from entering the hollow shaft and blocking the air outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A schematic diagram of a three-dimensional structure provided for an embodiment of the utility model;

[0017] Figure 2 for Figure 1 Enlarged structural diagram at A in the middle.

[0018] Description of the drawings: 1-barrel body; 2-scraper; 3-feeding pipe; 4-medicine feeding pipe; 5-bracket; 6-first motor; 7-hollow shaft; 8-inlet pipe; 9-fixed frame; 10-driving gear; 11-driven gear; 12-liquid level sensor; 13-second motor; 14-foam scraper; 15-collecting tank; 16-stirring plate; 17-through hole; 18-discharge pipe; 19-sealing head; 20-telescopic device; 21-vertical pipe; 22-fixed plate; 23-air outlet; 24-spring; 25-arc plate. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] Combine the following Figure 1 and Figure 2 The utility model is described in detail.

[0023] Example

[0024] A highly efficient mechanical stirring flotation machine comprises a barrel body 1, a bracket 5 is arranged on the barrel body 1, a hollow shaft 7 located on the axis of the barrel body 1 is rotatably arranged on the bracket 5, a driven gear 11 is fixedly sleeved on the hollow shaft 7, a first motor 6 is installed on the bracket 5, the first motor 6 is connected to a driving gear 10 meshing with the driven gear 11, a fixing frame 9 is fixedly arranged on the bracket 5, an air inlet pipe 8 rotatably sealed and connected to the hollow shaft 7 is fixedly connected to the fixing frame 9, an air outlet 23 is opened at the lower end of the hollow shaft 7, an arc plate 25 for blocking the air outlet 23 is arranged on the outer side of the hollow shaft 7, a spring 24 extending from the air outlet 23 into the hollow shaft 7 is connected to the inner side of the arc plate 25, and a fixing plate 22 connected to the spring 24 is fixedly arranged in the hollow shaft 7.

[0025] The barrel body 1 is also connected with a feed pipe 3 and a drug feed pipe 4. The feed pipe 3 is used to transport ore pulp into the barrel body 1, and the drug feed pipe 4 is used to transport the drug solution used for flotation.

[0026] One side of the barrel 1 is connected to a collecting tank 15, on which a second motor 13 is provided, and an output shaft of the second motor 13 is connected to a foam scraper 14. The second motor 13 rotates to drive the foam scraper 14 to rotate, and the foam enters the collecting tank 15 and is scraped out of the flotation machine by the foam scraper 14 to achieve the flotation operation.

[0027] The bracket 5 is connected with a liquid level sensor 12 which extends into the barrel body 1. The liquid level sensor 12 monitors the liquid level in the barrel body 1 to ensure that the liquid level reaches a suitable height to satisfy the foam scraping operation of the foam scraper 14.

[0028] A stirring plate 16 is connected to the hollow shaft 7. The stirring plate 16 stirs the ore pulp, the liquid medicine and the gas so that the ore particles adhere to the foam.

[0029] The stirring plate 16 is provided with a plurality of through holes 17. When the stirring plate 16 rotates, the plurality of through holes 17 cause the ore pulp to generate multiple turbulent flows, thereby increasing the mixing effect.

[0030] The stirring plate 16 is connected with a scraper 2 in contact with the inner wall of the barrel 1. The scraper 2 scrapes off the minerals attached to the inner wall of the barrel 1 to ensure full flotation of the minerals, and also reduces the intensity of cleaning work on the barrel 1 after shutdown.

[0031] The bottom of the barrel 1 is connected with a vertical pipe 21, in which a sealing head 19 is slidably arranged, and the bottom of the sealing head 19 is connected with a telescopic device 20, and the vertical pipe 21 is connected with an inclined discharge pipe 18. The upper end surface of the sealing head 19 is flush with the bottom of the barrel 1, so as to avoid the minerals in the slurry from settling in the pipe and causing the pipe to be blocked, and also to avoid the direct discharge of the unfloated minerals and the waste of the minerals; when in use, the telescopic device 20 pulls the sealing head 19 downward, and when the sealing head 19 exposes the pipe opening of the discharge pipe 18, the impurities remaining in the barrel 1 can be discharged. The telescopic device 20 can be a hydraulic telescopic rod.

[0032] The first motor 6 rotates and drives the hollow shaft 7 to rotate through the engagement of the driving gear 10 and the driven gear 11. The stirring plate 16 rotates to mechanically stir the slurry. The gas enters the hollow shaft 7 through the air inlet pipe 8. The arc plate 25 opens the air outlet 23 (such as Figure 2 When the gas is not inflated, the arc plate 25 is pulled by the spring 24 to fit the outer wall of the hollow shaft 7 and block the gas outlet 23, thereby automatically blocking the gas outlet 23 and preventing the slurry from entering the hollow shaft 7 and blocking the gas outlet 23.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An efficient mechanical stirring flotation machine, comprising a barrel (1), on which a bracket (5) is arranged, characterized in that: A hollow shaft (7) located on the axis of the barrel (1) is rotatably arranged on the bracket (5), a driven gear (11) is fixedly sleeved on the hollow shaft (7), a first motor (6) is mounted on the bracket (5), the first motor (6) is connected to a driving gear (10) meshing with the driven gear (11), a fixing frame (9) is fixedly arranged on the bracket (5), an air inlet pipe (8) rotatably sealed and connected to the hollow shaft (7) is fixedly connected to the fixing frame (9), an air outlet hole (23) is opened at the lower end of the hollow shaft (7), an arc plate (25) for blocking the air outlet hole (23) is arranged on the outer side of the hollow shaft (7), a spring (24) extending from the air outlet hole (23) into the hollow shaft (7) is connected to the inner side of the arc plate (25), and a fixing plate (22) connected to the spring (24) is fixedly arranged in the hollow shaft (7).

2. A highly efficient mechanical stirring flotation machine according to claim 1, characterized in that: One side of the barrel body (1) is connected to a collecting tank (15), a second motor (13) is arranged on the collecting tank (15), and an output shaft of the second motor (13) is connected to a foam scraper (14).

3. The efficient mechanical stirring flotation machine according to claim 1, characterized in that: The bracket (5) is connected to a liquid level sensor (12) extending into the barrel body (1).

4. The efficient mechanical stirring flotation machine according to claim 1, characterized in that: The hollow shaft (7) is connected to a stirring plate (16).

5. A highly efficient mechanical stirring flotation machine according to claim 4, characterized in that: The stirring plate (16) is provided with a plurality of through holes (17).

6. A highly efficient mechanical stirring flotation machine according to claim 4, characterized in that: The stirring plate (16) is connected to a scraper (2) in contact with the inner wall of the barrel (1).

7. The efficient mechanical stirring flotation machine according to claim 1, characterized in that: The bottom of the barrel body (1) is connected to a vertical pipe (21), a sealing head (19) is slidably arranged in the vertical pipe (21), a telescopic device (20) is connected to the bottom of the sealing head (19), and the vertical pipe (21) is connected to a discharge pipe (18) arranged obliquely.

Images