Efficient spiral classifier for sorting

Abstract

The utility model discloses an efficient spiral classifier for sorting, which comprises a machine groove, a spiral blade and a driving mechanism, the spiral blade is arranged in the machine groove, the driving mechanism is used for driving the spiral blade to rotate, and the efficient spiral classifier is characterized in that a plurality of supporting strips are arranged at the bottom of the machine groove; the supporting strips are arranged in the axial direction of the machine groove, the multiple supporting strips are arranged at intervals, the head sections and the tail ends of the supporting strips are connected with the supporting frame, the supporting frame is connected with the machine groove through springs, and a vibrator is arranged on the supporting frame. According to the efficient spiral classifier for sorting, ore sorting is carried out through the two physical characteristics of the specific gravity difference and the Brazilian nut effect, and the sorting efficiency of the spiral classifier is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spiral classifiers, in particular to a high-efficiency spiral classifier for classifying. Background Art

[0002] The spiral classifier is a device used for mineral processing. It uses the different sedimentation speeds of solid particles with different specific gravities in liquids for mechanical classification. During classification, spiral blades are used to drive the ore particles in the machine slot, so that the solid particles with small specific gravity are transported to the upper end of the machine slot, and the solid particles with large specific gravity settle at the lower end of the machine slot, thereby achieving the effect of ore separation. However, when sorting ore, only the physical characteristics of specific gravity difference are used for sorting, and the sorting efficiency is low. Utility Model Content

[0003] In view of the above-mentioned prior art, the utility model provides a high-efficiency spiral classifier for sorting and selecting, which utilizes two physical properties, namely, specific gravity difference and Brazil nut effect, to sort ore, thereby improving the sorting efficiency of the spiral classifier.

[0004] To achieve the above purpose, the technical solution of the embodiment of the utility model is implemented as follows:

[0005] A high-efficiency spiral classifier for classification comprises a machine slot, a spiral blade and a driving mechanism, wherein the spiral blade is arranged in the machine slot, and the driving mechanism is used to drive the spiral blade to rotate. A plurality of support bars are arranged at the bottom of the machine slot, and the support bars are arranged along the axial direction of the machine slot, and a plurality of the support bars are arranged at intervals. The head section and the tail end of the support bar are connected to a support frame, and the support frame is connected to the machine slot through a spring, and a vibrator is arranged on the support frame.

[0006] Furthermore, a feed pipe is provided in the middle of the machine trough, a first discharge port is provided at the upper end of the machine trough, a second discharge port is provided at the lower end of the machine trough, an overflow port is provided above the second discharge port, and the overflow port is connected to a drain pipe.

[0007] Furthermore, the support frame includes a cross bar, a connecting platform and a plurality of guide rods, the cross bar is connected to the support bar, the connecting platform is connected to the spring, and the connecting platform is connected to the cross bar through the guide rods.

[0008] Furthermore, a sleeve is provided in the machine slot, the guide rod passes through the sleeve, the spring is sleeved on the guide rod, one end of the spring is connected to the sleeve, and the other end is connected to the connecting platform.

[0009] Furthermore, the cross section of the support bar is an inverted triangle, and the top of the support bar is a horizontal plane.

[0010] Furthermore, the driving mechanism includes a first motor, a reducer and a coupling, the spiral blade is connected to the rotating shaft, the rotating shaft is rotatably connected to the machine slot, the first motor is connected to the reducer through the coupling, and the reducer is connected to the rotating shaft.

[0011] Furthermore, the vibrator includes a second motor and a counterweight, the second motor is connected to the connecting platform, and the output shaft of the second motor is provided with the counterweight.

[0012] Furthermore, the connecting platform is provided with an electromagnet, which is used to periodically attract the counterweight block, and the electromagnet is connected to the controller signal.

[0013] The beneficial effect of the utility model is that the support frame vibrates up and down under the action of the vibrator, thereby driving the support bar to vibrate up and down, and the support bar is immersed in the ore, and the vibration of the support bar is transmitted to the ore to be sorted. Under the action of the Brazil nut effect, the particles with relatively large volume will rise to the surface, and the smaller particles will settle to the bottom, thereby improving the sorting efficiency. The utility model uses the two physical properties of specific gravity difference and Brazil nut effect to sort the ore, thereby improving the sorting efficiency of the spiral classifier. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of a high-efficiency spiral classifier used in one embodiment of the present application;

[0015] Figure 2 This is a schematic diagram of the structure of the support bar and the support frame in the embodiment of the present application;

[0016] Description of Figure Numbers:

[0017] 1 machine slot, 2 spiral blade, 3 driving mechanism, 4 support bar, 5 support frame, 6 spring, 7 vibrator, 8 feed pipe, 9 first discharge port, 10 second discharge port, 11 overflow port, 12 drain pipe, 13 connecting platform, 14 guide rod, 15 cross bar, 16 sleeve, 17 first motor, 18 reducer, 19 coupling, 20 second motor, 21 counterweight, 22 electromagnet. DETAILED DESCRIPTION

[0018] The technical solution of the utility model is further elaborated in detail below in conjunction with the drawings and specific embodiments of the specification. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the utility model. The terms used herein in the specification of the utility model are only for the purpose of describing specific embodiments and are not intended to limit the utility model. In the following description, the expression "some embodiments" is involved, which describes a subset of all possible embodiments, but it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments, and can be combined with each other without conflict.

[0019] It should also be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "inside", "outside", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0020] Example 1

[0021] Please refer to the attached Figure 1-2The present application provides a high-efficiency spiral classifier for sorting, including a machine trough 1, a spiral blade 2 and a driving mechanism 3. The ore to be sorted is placed in the machine trough 1, and the spiral blade 2 is provided in the machine trough 1. The driving mechanism 3 is used to drive the spiral blade 2 to rotate. When the spiral blade 2 rotates, the coarse ore is pushed upward and the fine ore is pushed downward to separate the coarse ore from the fine ore. A plurality of support bars 4 are provided at the bottom of the machine trough 1. The support bars 4 are located below the spiral blade 2. The support bars 4 are arranged along the axial direction of the machine trough 1, and a plurality of the support bars 4 are arranged at intervals. Preferably, the support bars 4 are elastic. The head section and tail end of the support bar 4 are connected to the support frame 5, and the support frame 5 is connected to the machine slot 1 through a spring 6. A vibrator 7 is provided on the support frame 5. Under the action of the vibrator 7, the support frame 5 vibrates up and down, thereby driving the support bar 4 to vibrate up and down. The support bar 4 is immersed in the ore, and the vibration of the support bar 4 will be transmitted to the ore to be sorted. Under the action of the Brazil nut effect, the particles with relatively large volume will rise to the surface, and the smaller particles will settle to the bottom, thereby improving the efficiency of sorting. The vibration generated can directly act on the ore above the support bar to promote the stratification of the ore. Since the support bar is located in the ore layer, the vibration will also be transmitted to the ore below, so that the ore in the lower layer will also vibrate and then stratify. The utility model uses two physical properties of specific gravity difference and Brazil nut effect to sort ore. When separating the ore with large particle size and specific gravity from the ore with small particle size and specific gravity, the sorting efficiency of the spiral classifier can be effectively improved compared with the use of a single physical property.

[0022] Specifically, a feed pipe 8 is provided in the middle of the machine trough 1, and ore particles and water enter the machine trough 1 from the feed pipe 8. A first discharge port 9 is provided at the upper end of the machine trough 1, and coarse ore particles are discharged from the first discharge port 9. A second discharge port 10 is provided at the lower end of the machine trough 1, and fine ore particles are discharged from the second discharge port 10. An overflow port 11 is provided above the second discharge port 10. When the water level in the machine trough 1 is greater than the moving height, the water enters the overflow port 11. The overflow port 11 is connected to the drain pipe 12, and the discharged water enters the drain pipe 12 for discharge.

[0023] Specifically, the support frame 5 includes a cross bar 15, a connecting platform 13 and a plurality of guide rods 14. The cross bar 15 is connected to the support bar 4. The connecting platform 13 is connected to the spring 6. The connecting platform 13 is connected to the cross bar 15 through the guide rods 14. The connecting platform 13 is located above the support bar 4. The connecting platform 13 is further connected to the support bar 4 through the guide rods 14 and the cross bar 15, so that the connecting platform 13 is located above the water surface, which is convenient for installing the vibrator 7.

[0024] Specifically, a sleeve 16 is provided in the machine slot 1, and the guide rod 14 passes through the sleeve 16. The cooperation between the sleeve 16 and the connecting platform 13 can improve the stability of the movement. The spring 6 is sleeved on the guide rod 14, and one end of the spring 6 is connected to the sleeve 16, and the other end is connected to the connecting platform 13. The spring 6 brings the arc frame to move and reset, ensuring that the arc frame vibrates under the drive of the vibration mechanism.

[0025] Specifically, the cross section of the support bar 4 is an inverted triangle, and the top of the support bar 4 is a horizontal plane. The horizontal plane formed above the support bar 4 can support the ore and promote the upward movement of coarse particles of ore. The bottom of the support bar 4 is a pointed structure, which can squeeze the ore to both sides.

[0026] Specifically, the driving mechanism 3 includes a first motor 17, a reducer 18 and a coupling 19. The spiral blade 2 is connected to the rotating shaft, the rotating shaft is rotatably connected to the machine slot 1, the first motor 17 is connected to the reducer 18 through the coupling 19, and the reducer 18 is connected to the rotating shaft. The first motor 17 drives the rotating shaft to rotate after deceleration and torque increase, thereby driving the spiral blade 2 to rotate, driving the ore to move and realize ore separation.

[0027] Specifically, the vibrator 7 includes a second motor 20 and a counterweight 21. The second motor 20 is connected to the connecting platform 13. The output shaft of the second motor 20 is provided with the counterweight 21. When the second motor 20 rotates, the counterweight 21 is driven to rotate. The counterweight 21 is fixed to one side of the output shaft of the second motor 20. When the counterweight 21 rotates, the centrifugal force generated drives the connecting platform 13 to vibrate, thereby driving the support bar 4 to vibrate.

[0028] Example 2

[0029] Please refer to the attached Figure 1-2 The difference between this embodiment and embodiment 1 is that the connecting platform 13 is provided with an electromagnet 22, and the electromagnet 22 is used to periodically attract the counterweight 21, and the electromagnet 22 is connected to the controller signal. The four second motors 20 are respectively arranged around the connecting platform 13, and the controller controls the electromagnet 22 to periodically generate magnets, thereby periodically attracting the counterweight 21. When the electromagnet 22 generates magnets, if the counterweight 21 is not in the position closest to the electromagnet 22, the counterweight 21 will accelerate or decelerate under the attraction of the electromagnet 22, and finally the vibrators 7 at different positions generate the same vibration period and direction on the connecting platform 13, so that the vibrators synchronously drive the support platform to move downward or upward.

[0030] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. The protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A high-efficiency spiral classifier for classification, comprising a machine slot, a spiral blade and a driving mechanism, wherein the spiral blade is arranged in the machine slot, and the driving mechanism is used to drive the spiral blade to rotate, characterized in that: A plurality of support bars are provided at the bottom of the machine slot, and the support bars are arranged along the axial direction of the machine slot, and the plurality of support bars are arranged at intervals, and the head section and the tail end of the support bar are connected to the support frame, and the support frame is connected to the machine slot through a spring, and a vibrator is provided on the support frame.

2. The high-efficiency spiral classifier for classification according to claim 1 is characterized in that: A feed pipe is provided in the middle of the machine trough, a first discharge port is provided at the upper end of the machine trough, a second discharge port is provided at the lower end of the machine trough, an overflow port is provided above the second discharge port, and the overflow port is connected to a drain pipe.

3. The high-efficiency spiral classifier for classification according to claim 1, characterized in that: The support frame comprises a crossbar, a connecting platform and a plurality of guide rods, the crossbar is connected to the support bar, the connecting platform is connected to the spring, and the connecting platform is connected to the crossbar through the guide rods.

4. The high-efficiency spiral classifier for classification according to claim 3 is characterized in that: A sleeve is arranged in the machine groove, the guide rod passes through the sleeve, the spring is sleeved on the guide rod, one end of the spring is connected to the sleeve, and the other end is connected to the connecting platform.

5. The high-efficiency spiral classifier for classification according to claim 1, characterized in that: The cross section of the support bar is an inverted triangle, and the top of the support bar is a horizontal plane.

6. The high-efficiency spiral classifier for classification according to claim 1, characterized in that: The driving mechanism includes a first motor, a reducer and a coupling. The spiral blade is connected to a rotating shaft, and the rotating shaft is rotatably connected to the machine slot. The first motor is connected to the reducer through the coupling, and the reducer is connected to the rotating shaft.

7. The high-efficiency spiral classifier for classification according to claim 3, characterized in that: The vibrator comprises a second motor and a counterweight, wherein the second motor is connected to the connecting platform, and the counterweight is disposed on an output shaft of the second motor.

8. The high-efficiency spiral classifier for classification according to claim 7, characterized in that: The connecting platform is provided with an electromagnet, which is used to periodically attract the counterweight block, and the electromagnet is connected to the controller signal.

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