Beneficiation thickener with defoaming device

Abstract

The thickener comprises a machine body, a rotating shaft is rotationally connected to the machine body, a rotating disc is arranged at the bottom of the rotating shaft, a plurality of groups of nozzles are distributed and mounted at the bottom of the rotating disc, the water inlet ends of the nozzles are directly or indirectly communicated with a soft connecting pipe, and the other end of the connecting pipe is connected with a water supply device. The thickener further comprises a reciprocating driving mechanism used for driving the rotating disc to rotate in a reciprocating mode. The reciprocating driving mechanism drives the rotating disc to rotate in a reciprocating mode, so that the multiple sets of nozzles rotate around the rotating shaft and conduct spraying at the same time, by means of centrifugal force during rotation, the spraying range is remarkably expanded, blind areas are reduced, and the defoaming effect and efficiency are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of thickeners, and particularly relates to a thickener for mineral processing. Background Art

[0002] A thickener is a continuous working concentration and clarification device, mainly used for dewatering of concentrated and tailing slurries in wet mineral processing operations. It realizes material separation based on the working principle of gravitational settlement of particles.

[0003] During the working process of the thickener, a large number of bubbles will appear on the liquid surface. Many solid particles will adhere to the bubbles, resulting in a slower sedimentation speed of the particles and reducing the working efficiency of the thickener. Therefore, many thickeners for mineral processing are equipped with defoaming devices. The defoaming device is usually installed on the shell of the thickener, and uses a nozzle to spray droplets to break the bubbles, thereby achieving defoaming. However, the nozzles of the existing defoaming devices are all fixed. In order to ensure a large enough spraying range, multiple groups of nozzles often need to be installed. Even so, there are still blind spots, resulting in poor defoaming effect at certain positions. Summary of the Invention

[0004] The present invention provides a thickener for mineral processing with a defoaming device, and its purpose is to solve the problems of insufficient coverage and blind spots of the defoaming device of the existing thickener.

[0005] The technical solution of the present invention is as follows: A thickener for mineral processing with a defoaming device includes a machine body, a rotating shaft is rotatably connected to the machine body, a rotating disk is provided at the bottom of the rotating shaft, and multiple groups of nozzles are distributed and installed at the bottom of the rotating disk. The water inlet end of the nozzle is directly or indirectly communicated with a soft connecting pipe, and the other end of the connecting pipe is connected to a water supply device; The thickener for mineral processing with a defoaming device further includes a reciprocating driving mechanism for driving the rotating disk to rotate reciprocally.

[0006] As a further improvement of the thickener for mineral processing with a defoaming device: an annular water chamber is provided inside the rotating disk, and the connecting pipe is communicated with the annular water chamber; The water inlet end at the top of the nozzle is communicated with the annular water chamber.

[0007] As a further improvement of the thickener for mineral processing with a defoaming device: a threaded sleeve is provided at the bottom of the rotating disk, and the threaded sleeve is communicated with the annular water chamber; A threaded pipe is provided at the water inlet end at the top of the nozzle, and the threaded pipe is threadedly connected to the threaded sleeve.

[0008] As a further improvement to the thickener for ore dressing with a defoaming device: The reciprocating driving mechanism includes a motor installed on the machine body, a rotating disk installed on the output shaft of the motor, an eccentric shaft eccentrically arranged on the rotating disk, a gear fixedly arranged on the rotating shaft, a rack installed on the machine body by a sliding connection method and meshing with the gear, and a connecting rod with one end rotatably connected to the eccentric shaft and the other end rotatably connected to the rack.

[0009] As a further improvement to the thickener for ore dressing with a defoaming device: A guide rail seat is installed on the machine body, and the rack is slidably matched with the guide rail seat.

[0010] As a further improvement to the thickener for ore dressing with a defoaming device: Multiple groups of limit holes located at different radii are provided on the rotating disk, and the eccentric shaft is installed in one of the limit holes.

[0011] As a further improvement to the thickener for ore dressing with a defoaming device: A positioning hole is also provided on the side of the rotating disk, a positioning pin is installed in the positioning hole, and the positioning pin passes through a through hole on the eccentric shaft installed in the limit hole to fix the eccentric shaft.

[0012] As a further improvement to the thickener for ore dressing with a defoaming device: The positioning pin is installed in the positioning hole by a threaded connection method.

[0013] As a further improvement to the thickener for ore dressing with a defoaming device: All the limit holes are collinearly arranged.

[0014] As a further improvement to the thickener for ore dressing with a defoaming device: A through groove and a fixing groove parallel to the rack are provided on the machine body; The output shaft of the motor passes downward through the through groove and is connected to the rotating disk; The screws for fixing the motor sequentially pass through the mounting holes on the motor body and the fixing groove and are then connected to the nuts.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention drives the rotating disk to rotate reciprocally through the reciprocating driving mechanism, so that multiple groups of nozzles rotate around the rotating shaft and spray while rotating, and with the centrifugal force during rotation, the spraying range is significantly expanded, the blind area is reduced, and the defoaming effect and efficiency are improved. Since the defoaming efficiency is improved, the number of nozzles can be appropriately reduced, the spraying time can be shortened, and water resources can be saved.

[0016] 2. The present invention provides two mechanisms for adjusting the reciprocating rotation amplitude. One is to change the reciprocating rotation amplitude of the gear by changing the position of the eccentric shaft, and the other is to adjust the reciprocating rotation amplitude of the gear by changing the position of the motor. This design can not only make the working area of the nozzle match the requirements and adapt to different working conditions, but also enable the operator to make a flexible choice according to the layout inside the thickener, avoiding interference between the reciprocating drive mechanism and other components during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the structure of the motor main body of the present invention; Figure 3 is a disassembled schematic diagram of the nozzle of the present invention; Figure 4 is a schematic diagram of the structure of the eccentric shaft of the present invention.

[0018] The reference numerals include: 1, body; 11, fixing groove; 12, through groove; 2, rotating shaft; 3, rotating disk; 4, nozzle; 41, connecting pipe; 42, threaded sleeve; 43, threaded pipe; 5, reciprocating drive mechanism; 51, motor; 52, rotating disk; 53, eccentric shaft; 531, limiting hole; 532, positioning pin; 54, connecting rod; 55, rack; 551, guide rail seat; 56, gear. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solution of the present invention will be described in detail below with reference to the drawings: As Figures 1 to 4 , a thickener for mineral processing with a defoaming device includes a body 1, a rotating shaft 2 is rotatably connected to the body 1, a rotating disk 3 is provided at the bottom of the rotating shaft 2, a plurality of nozzles 4 are distributed and installed at the bottom of the rotating disk 3, and the water inlet end of the nozzle 4 is directly or indirectly communicated with a soft connecting pipe 41, and the other end of the connecting pipe 41 is connected to a water supply device.

[0020] In this embodiment, an annular water cavity is provided inside the rotating disk 3, and the connecting pipe 41 is communicated with the annular water cavity. The water inlet end at the top of the nozzle 4 is communicated with the annular water cavity.

[0021] Specifically, a threaded sleeve 42 is provided on the bottom of the rotating disk, and the threaded sleeve 42 is communicated with the annular water cavity. A threaded pipe 43 is provided at the water inlet end at the top of the nozzle 4, and the threaded pipe 43 is threadedly connected to the threaded sleeve 42, so that the nozzle 4 is convenient to disassemble and assemble, and is convenient for replacement and maintenance.

[0022] The thickener for mineral processing with a defoaming device further includes a reciprocating drive mechanism 5 for driving the rotating disk 3 to reciprocate.

[0023] Specifically, the reciprocating drive mechanism 5 includes: A motor 51, which is arranged on the machine body 1; A rotating disk 52, which is connected to the output shaft of the motor 51 and rotates under the drive of the motor 51; An eccentric shaft 53, which is eccentrically arranged on the rotating disk 52; A connecting rod 54, one end of which is rotatably connected to the eccentric shaft 53; A gear 56, which is fixedly arranged on the rotating shaft 2; A rack 55, which is installed on the machine body 1 by a sliding connection method and meshes with the gear 56. At the same time, the other end of the connecting rod 54 is rotatably connected to the rack 55. Specifically, a guide rail seat 551 is provided on the machine body 1, and the guide rail seat 551 is used to support and limit the rack 55 and slidably cooperate with both ends of the rack 55, so that the rack 55 can reciprocate smoothly.

[0024] When the motor 51 drives the rotating disk 52 to rotate, the connecting rod 54 will drive the rack 55 to reciprocate, thereby driving the gear 56 and the rotating disk 3 to rotate reciprocally, realizing the rotation and spraying of multiple groups of nozzles 4 at the same time, and by means of the centrifugal force during rotation, significantly expanding the spraying range, reducing the blind area, and at the same time making the spraying and defoaming more uniform, improving the defoaming efficiency.

[0025] Further, a plurality of limiting holes 531 located at different radii are provided on the rotating disk 52, and the eccentric shaft 53 is installed in one of the limiting holes 531.

[0026] Further, a positioning hole is also provided on the side of the rotating disk 52, and a positioning pin 532 is installed in the positioning hole. The positioning pin 532 passes through a through hole on the eccentric shaft 53 installed in the limiting hole 531 to realize the fixation of the eccentric shaft 53. The positioning pin 532 is installed in the positioning hole by a threaded connection method.

[0027] Further, all the limiting holes 531 are arranged collinearly, so that the positioning of the eccentric shaft 53 can be realized by opening one positioning hole.

[0028] By installing the eccentric shaft 53 in different limiting holes 531, its rotation radius can be adjusted, thereby changing the movement amplitude of the connecting rod 54, and further adjusting the reciprocating movement stroke of the rack 55, and finally realizing the precise matching of the reciprocating rotation amplitude of the rotating disk 3 and the nozzles 4 with the defoaming area, so as to adapt to different working conditions.

[0029] Furthermore, a through groove 12 and a fixing groove 11 parallel to the rack 55 are formed in the machine body 1. The output shaft of the motor 51 passes downward through the through groove 12 and is connected to the rotating disc 52. The screw for fixing the motor 51 passes through the mounting hole on the motor 51 body and the fixing groove 11 in sequence and is connected to the nut. This structure can adjust the installation position of the motor 51, change the distance between the rotating disc 52 and the rotating shaft 2, so as to realize the precise adjustment of the reciprocating rotation amplitude of the rotating disc 3 and the nozzle 4.

[0030] The present invention provides two mechanisms for adjusting the reciprocating rotation amplitude, which can be flexibly selected according to the layout inside the thickener during use to avoid interference between the reciprocating drive mechanism 5 and other components during operation.

[0031] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements should fall within the protection scope of the present invention.

Claims

1. A thickener for ore dressing with a defoaming device, comprising a machine body (1), characterized in that: A rotating shaft (2) is rotatably connected to the body (1). A rotating disk (3) is provided at the bottom of the rotating shaft (2). A plurality of groups of spray nozzles (4) are distributively installed at the bottom of the rotating disk (3). The water inlet end of the spray nozzle (4) is directly or indirectly communicated with a flexible connecting pipe (41). The other end of the connecting pipe (41) is connected to a water supply device; The thickener for ore dressing with a defoaming device further includes a reciprocating driving mechanism (5) for driving the rotating disk (3) to reciprocate.

2. The thickener for ore dressing with a defoaming device as described in claim 1, characterized in that: An annular water chamber is provided inside the rotating disk (3). The connecting pipe (41) is communicated with the annular water chamber; The water inlet end at the top of the spray nozzle (4) is communicated with the annular water chamber.

3. The thickener for ore dressing with a defoaming device according to claim 2, characterized in that: A threaded sleeve (42) is provided at the bottom of the rotating disk (3). The threaded sleeve (42) is communicated with the annular water chamber; A threaded pipe (43) is provided at the water inlet end at the top of the spray nozzle (4). The threaded pipe (43) is threadedly connected to the threaded sleeve (42).

4. The thickener for ore dressing with a defoaming device as described in claim 1, characterized in that: The reciprocating driving mechanism (5) includes a motor (51) installed on the body (1), a rotating disk (52) installed on the output shaft of the motor (51), an eccentric shaft (53) eccentrically arranged on the rotating disk (52), a gear (56) fixedly arranged on the rotating shaft (2), a rack (55) installed on the body (1) by a sliding connection and meshed with the gear (56), and a connecting rod (54) with one end rotatably connected to the eccentric shaft (53) and the other end rotatably connected to the rack (55).

5. The thickener for ore dressing with a defoaming device according to claim 4, characterized in that: A guide rail seat (551) is installed on the body (1). The rack (55) is slidably matched with the guide rail seat (551).

6. The thickener for ore dressing with a defoaming device as described in claim 4, characterized in that: A plurality of groups of limit holes (531) located at different radii are formed on the rotating disk (52). The eccentric shaft (53) is installed in one of the limit holes (531).

7. The thickener for ore dressing with a defoaming device according to claim 6, characterized in that: A positioning hole is further provided on the side of the rotating disk (52). A positioning pin (532) is installed in the positioning hole. The positioning pin (532) passes through a through hole on the eccentric shaft (53) installed in the limit hole (531) to fix the eccentric shaft (53).

8. The thickener for ore dressing with a defoaming device according to claim 7, characterized in that: The positioning pin (532) is installed in the positioning hole by a threaded connection method.

9. The thickener for ore dressing with a defoaming device as described in claim 7, characterized in that: All the limit holes (531) are collinearly arranged.

10. The thickener for ore dressing with a defoaming device according to claim 4, characterized in that: A through groove (12) and a fixing groove (11) parallel to the rack (55) are formed on the body (1); The output shaft of the motor (51) passes downward through the through groove (12) and is connected to the rotating disk (52); The screws for fixing the motor (51) sequentially pass through the mounting holes on the motor (51) body and the fixing groove (11) and are connected to nuts.

Images