Heavy metal concentrator

Abstract

The application discloses a heavy metal ore dressing machine, which comprises a rack, a rotating disc and a driving device thereof; the rotating disc is arranged on the rack and is inclined to the ground; a surrounding plate is arranged on the periphery of the rotating disc, the rotating disc is open upward, and a concentrate outlet is arranged at the center of the bottom of the rotating disc; at least two circles of sorting plates are fixed on the inner bottom plate of the rotating disc and are arranged with the concentrate outlet as the center; a gap of 2-10 mm is arranged between the bottom edge of the sorting plate and the bottom plate of the rotating disc to facilitate the passing of the concentrate; sorting channels are formed between the adjacent sorting plates and between the sorting plate and the surrounding plate; a baffle is arranged between the adjacent two circles of sorting plates, and a tailing passing hole is arranged at the position, close to the baffle, of the outer circle of sorting plates; a baffle is arranged between the sorting plate and the surrounding plate of the rotating disc; the driving device comprises a motor and a speed reducer; the bottom of the rotating disc is fixedly connected to the output shaft of the speed reducer; the driving device is fixed to the rack; and a concentrate collecting hopper is arranged below the concentrate outlet. The application has the advantages of small volume, low energy consumption and high recovery rate.

Description

Technical Field

[0001] This invention relates to a mineral processing equipment, and more particularly to a heavy metal mineral processing machine. Background Technology

[0002] Gravity separation equipment is commonly used in the beneficiation of heavy metal minerals such as placer gold and in the recovery of heavy metals from bottom sludge. Currently, the main gravity separation equipment includes shaking tables, sluice boxes, and jigs.

[0003] These devices have some drawbacks in use, mainly: large size and high energy consumption. These drawbacks are particularly prominent in the recovery of heavy metals from pond bottom sludge, resulting in low recovery rates. Consequently, heavy metals in the pond bottom sludge cannot be recycled, and large amounts of pond bottom sludge are discarded, wasting resources and polluting the environment.

[0004] There is an urgent need in this technical field for a new type of heavy metal beneficiation device that is small in size, low in energy consumption, and has a high recovery rate. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a heavy metal beneficiation machine for the beneficiation of heavy metal minerals such as placer gold and the recovery of heavy metals from bottom mud, which can overcome the defects of existing technologies such as large size, high energy consumption and low recovery rate.

[0006] To solve the above-mentioned technical problems, the heavy metal ore beneficiation machine of the present invention includes a frame, a turntable and its driving device; the turntable is inclined to the ground and mounted on the frame.

[0007] The turntable is surrounded by a surrounding plate, with the turntable opening facing upwards and a concentrate outlet at the center of the bottom. At least two rings of sorting plates are fixed to the inner bottom plate of the turntable, with the sorting plates centered on the concentrate outlet. A 2-10 mm gap is provided between the bottom edge of the sorting plates and the bottom plate of the turntable to facilitate concentrate passage. Sorting channels are formed between adjacent sorting plates and between the sorting plates and the surrounding plate. A baffle is provided between two adjacent rings of sorting plates, and a tailings passage hole is provided near the baffle on the outer ring of sorting plates. A baffle is also provided between the sorting plates and the turntable surrounding plate.

[0008] The drive device includes a motor and a reducer; the bottom of the turntable is fixedly connected to the output shaft of the reducer; the drive device is fixed to the frame;

[0009] A concentrate collection hopper is provided below the concentrate outlet.

[0010] It also includes a concentrate discharge device, which includes 1-4 discharge plates. The discharge plates are overlapped and fixed above the concentrate discharge hole at the bottom of the turntable. There is a 2-10 mm gap between the discharge plates and between the lower discharge plate and the bottom plate of the turntable. The middle discharge plate and the lower discharge plate are provided with discharge holes, and the discharge holes of the discharge plates correspond to the concentrate discharge hole at the bottom of the turntable.

[0011] It also includes a tailings separation device, which is located above the lower part of the turntable. The tailings separation device includes a connecting rod and a separating plate. One end of the connecting rod is hinged to the frame and the other end is connected to the separating plate. There are 1-4 separating plates, which extend downward into the sorting channel near the surrounding plate.

[0012] Mineral collection bars are provided on the turntable base plate, between the bottom edge of the sorting plate and the turntable base plate, and radially along the turntable base plate; four or more mineral collection bars are symmetrically arranged.

[0013] It also includes a turntable tilt adjustment device, which includes a drive device fixing plate and an adjustment screw; the drive device fixing plate is hinged to the frame in the middle; one end of the adjustment screw is hinged to the lower part of the drive device fixing plate, and the other end is threaded to the adjustment screw hole of the frame.

[0014] The tilt angle of the turntable is 10-50°.

[0015] The height of the sorting plate is lower than the height of the surrounding plate, and the height of the inner sorting plate between two adjacent sorting plates is lower than the height of the outer sorting plate.

[0016] It also includes a flushing pipe, which is fixed to the frame and has its outlet located above the turntable with the outlet facing downwards.

[0017] It also includes a tailings hopper, which is located below the bottom of the turntable.

[0018] It also includes a feeding device, which has a discharge port located above the low part of the turntable, corresponding to the sorting channel near the enclosure.

[0019] The structure of this invention features a turntable mounted on a frame at an incline. A concentrate outlet is located at the center of the turntable's bottom. At least two rings of sorting plates are fixed to the inner bottom plate of the turntable, centered on the concentrate outlet. A 2-10 mm gap exists between the bottom edge of the sorting plates and the turntable bottom plate to facilitate concentrate passage. Sorting channels are formed between adjacent sorting plates and between the sorting plates and the surrounding plates. Baffles are provided between adjacent rings of sorting plates, and tailings passage holes are located near the baffles on the outer ring of sorting plates. A baffle is installed between the sorting plate and the turntable enclosure. During operation, the ore enters the outermost sorting channel at the bottom of the turntable. The turntable rotates clockwise, causing the ore to rotate and generating centrifugal force, which separates the concentrate from the tailings. When the ore reaches the top of the turntable, the concentrate falls through the gap between the bottom edge of the sorting plate and the bottom plate of the turntable and enters the inner sorting channel for further sorting. Finally, the concentrate is discharged from the concentrate outlet at the bottom center and collected by the concentrate collection hopper, while the tailings in the inner circle are discharged through the tailings outlet under the action of the baffle.

[0020] The present invention has a simple structure, flexible setup, small size, low energy consumption, and high recovery rate. It can overcome the defects of the prior art and is used for the beneficiation of heavy metal minerals such as placer gold and the recovery of heavy metals from pond bottom sludge. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the turntable structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the concentrate discharge device of the present invention. Implementation

[0024] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments:

[0025] like Figure 1 , Figure 2 , Figure 3 As shown, the heavy metal ore beneficiation machine of the present invention includes a frame 1, a turntable 7 and its driving device.

[0026] The turntable is tilted on the frame with its base tilted to the ground. The tilt angle of the turntable is preferably 10-50°.

[0027] The turntable is surrounded by a panel 71, with the turntable opening facing upwards and a concentrate outlet at the center of the bottom.

[0028] At least two rings of sorting plates 5 are fixed on the inner bottom plate of the turntable. The sorting plates are arranged with the concentrate outlet as the center, and a gap of 2-10 mm is provided between the bottom edge of the sorting plate and the bottom plate of the turntable to facilitate the passage of concentrate. Sorting channels are formed between adjacent sorting plates and between the sorting plates and the surrounding plates. A baffle 15 is provided between two adjacent rings of sorting plates. A tailings passage hole 14 is provided near the baffle on the outer ring of sorting plates. A baffle is provided between the sorting plates and the turntable surrounding plates.

[0029] The drive unit includes a motor 11 and a reducer 10. The bottom of the turntable is fixedly connected to the output shaft of the reducer. The drive unit is fixed to the frame. The connection between the motor and the reducer is prior art.

[0030] A concentrate collection hopper 9 is provided below the concentrate outlet.

[0031] During operation, the ore enters the outermost sorting channel at the bottom of the turntable. The turntable rotates clockwise, causing the ore to rotate and generating centrifugal force, which separates the concentrate from the tailings. When the ore reaches the top of the turntable, the concentrate falls through the gap between the bottom edge of the sorting plate and the bottom plate of the turntable and enters the inner sorting channel for further sorting. Finally, the concentrate is discharged from the concentrate outlet at the bottom center and collected by the concentrate collection hopper, while the tailings in the inner circle are discharged through the tailings outlet under the action of the baffle.

[0032] To improve sorting accuracy, a concentrate discharge device is also installed. This device consists of 1-4 discharge plates. The discharge plates are overlapped and fixed above the concentrate outlet at the bottom of the turntable. There are 2-10 mm gaps between the discharge plates and between the lower discharge plate and the turntable bottom plate. Both the middle and lower discharge plates have discharge holes, which correspond to the concentrate outlet at the bottom of the turntable. The qualified concentrate enters through the gaps between the discharge plates and between the lower discharge plate and the turntable bottom plate, and exits through the concentrate outlet, preventing other impurities from entering the concentrate outlet.

[0033] To facilitate tailings discharge and improve work efficiency, a tailings separation device is also included. The tailings separation device is located above the lower part of the turntable. The tailings separation device includes a connecting rod 3 and separation plates 4. One end of the connecting rod is hinged to the frame, and the other end is connected to the separation plates. One to four separation plates are provided. The separation plates extend downwards into the sorting channel near the surrounding plate. Under the action of the separation plates, the tailings are blocked to prevent further repeated sorting, and instead are squeezed downwards into the outer sorting channel and discharged.

[0034] To improve sorting efficiency, ore collecting bars 17 can be installed on the rotary table bottom plate, between the bottom edge of the sorting plate and the rotary table bottom plate, and radially along the rotary table bottom plate. Four or more ore collecting bars are symmetrically arranged. Under the action of the ore collecting bars, the concentrate can flow smoothly to the center of the rotary table for easy collection from the sorting process.

[0035] To accommodate the needs of different mineral beneficiation processes and facilitate adjustment of the turntable tilt, a turntable tilt adjustment device is also included. The turntable tilt adjustment device comprises a drive unit fixing plate 12 and an adjusting screw 13. The drive unit fixing plate is hinged to the frame in the middle. One end of the adjusting screw is hinged to the lower part of the drive unit fixing plate, and the other end is threaded into the adjusting screw hole of the frame.

[0036] To facilitate tailings discharge and improve work efficiency, as a further improvement, the height of the sorting plate is lower than the height of the surrounding plate, and the height of the inner sorting plate between two adjacent sorting plates is lower than the height of the outer sorting plate. This allows the tailings to flow continuously outward through the sorting channel.

[0037] To facilitate tailings discharge and improve work efficiency, a further improvement includes a flushing pipe 6. The flushing pipe is fixed to the frame, and its outlet is located above the turntable, facing downwards.

[0038] To avoid collecting tailings, a tailings hopper 2 is also included. The tailings hopper is located below the bottom of the turntable.

[0039] It also includes a feeding device 16. The feeding device has a discharge port, which is located above the lower part of the turntable and corresponds to the sorting channel near the side panel.

Claims

1. A heavy metal concentrator, characterised in that: It comprises a frame (1), a rotating disc (7) and a driving device; the rotating disc is arranged on the frame and is inclined to the ground; The rotating disc is provided with a surrounding plate (71) around the periphery, the rotating disc is open upward, and a concentrate outlet is arranged at the center of the bottom; at least two circles of sorting plates (5) are fixed on the inner bottom plate of the rotating disc, the sorting plates are arranged with the concentrate outlet as the center, and a gap of 2-10 mm is arranged between the bottom edge of the sorting plate and the bottom plate of the rotating disc to facilitate the passing of the concentrate; sorting channels are formed between adjacent sorting plates and between the sorting plate and the surrounding plate; a baffle (15) is arranged between the two adjacent circles of sorting plates, and a tailing passing hole (14) is arranged at the position close to the surrounding plate of the outer circle of sorting plates; a baffle is arranged between the sorting plate and the surrounding plate of the rotating disc; The driving device comprises a motor (11) and a speed reducer (10); the bottom of the rotating disc is fixedly connected to the output shaft of the speed reducer; and the driving device is fixed to the frame; A concentrate collecting hopper (9) is arranged below the concentrate outlet; The concentrate discharging device comprises 1-4 discharging pieces (8), the discharging pieces are fixed above the concentrate outlet at the bottom of the rotating disc, and a gap of 2-10 mm is arranged between the discharging pieces and the bottom plate of the rotating disc; the middle and lower discharging pieces are provided with discharging holes, and the discharging holes of the discharging pieces correspond to the concentrate outlet at the bottom of the rotating disc.

2. The heavy metal concentrator of claim 1, wherein: The tailing material separation device is arranged above the low position of the rotating disc, and comprises a connecting rod (3) and a material separation piece (4); one end of the connecting rod is hingedly connected to the frame, and the other end is connected to the material separation piece; the material separation piece is provided with 1-4 pieces; and the material separation pieces correspondingly extend downward into the sorting channels close to the surrounding plate.

3. The heavy metal concentrator of claim 1, wherein: A concentrate collecting strip (17) is arranged on the bottom plate of the rotating disc, between the bottom edge of the sorting plate and the bottom plate of the rotating disc, and along the radial direction of the bottom plate of the rotating disc; and the concentrate collecting strip is symmetrically arranged in more than 4 strips.

4. The heavy metal concentrator of claim 1, wherein: The rotating disc inclination adjusting device comprises a driving device fixing plate (12) and an adjusting screw rod (13); the middle part of the driving device fixing plate is hingedly connected to the frame; one end of the adjusting screw rod is hingedly connected to the lower part of the driving device fixing plate, and the other end is threadedly connected to the adjusting screw hole of the frame.

5. A heavy metal concentrator as claimed in claim 1 or 4, characterised in that: The inclination of the rotating disc is 10-50°.

6. The heavy metal concentrator of claim 1, wherein: The height of the sorting plate is lower than the height of the surrounding plate, and the height of the inner circle of sorting plates between the two adjacent circles of sorting plates is lower than the height of the outer circle of sorting plates.

7. The heavy metal concentrator of claim 1, wherein: The flushing pipe (6) is fixed to the frame, the water outlet of the flushing pipe is arranged above the high position of the rotating disc, and the water outlet of the flushing pipe faces downward.

8. The heavy metal concentrator of claim 1, wherein: The tailing hopper (2) is arranged below the low position of the rotating disc.

9. The heavy metal concentrator of claim 1, wherein: The feeding device (16) is provided with a discharging port, and the discharging port is arranged above the low position of the rotating disc and corresponds to the sorting channel close to the surrounding plate.

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