Spiral classifier

Abstract

The utility model relates to the technical field of ore screening, in particular to a spiral classifier which comprises a barrel body, a main shaft, a rack, a spiral blade and a driving motor, the barrel body is arranged on the main shaft in a penetrating mode, the two ends of the main shaft are connected to the top end of the rack, the spiral blade is fixedly connected to the portion, in the barrel body, of the main shaft, and the output end of the driving motor is fixedly connected with one end of the main shaft. An insection wheel is fixedly connected to the periphery of the side wall of the barrel body, a power generator can conveniently drive the barrel body to rotate through cooperation of a speed change gear and the insection wheel on the barrel body, spiral blades inside the barrel body rotate, the outer barrel body rotates at different speeds, a driving motor is started, and the barrel body and the spiral blades drive ore materials to turn over; and through rotation of the barrel body, the clamped ore is loosened under the action of centrifugal force, and meanwhile, the clamped ore at the upper end is loosened under the action of gravity and is not prone to being clamped in the filtering holes for a long time.

Description

Technical Field

[0001] The present application relates to the technical field of ore screening, and in particular to a spiral classifier. Background Art

[0002] Classifiers are widely used in ore dressing plants to form a closed loop with ball mills to divert ore materials, or to classify ore materials in gravity dressing plants, to grade ore pulp in metal dressing processes, and to desludging and dehydrating in ore washing operations. They have simple structure, reliable operation and easy operation.

[0003] In the related art, the classifier usually uses a semicircular groove-shaped casing with an open upper end fixed on a frame and horizontally arranged spiral blades to classify ore materials. The bottom wall of the casing is provided with holes to filter the ore. The spiral blades stir the ore in the casing so that the ore is classified into different collection devices through holes of different apertures.

[0004] With regard to the above-mentioned related technologies, the inventor believes that the spiral blades drive the ore material to rotate and grind in the barrel. When ores of different sizes pass through the filtering device on the barrel body, ores with similar apertures are easily stuck in the filter holes when passing through the filter holes and cannot pass through, causing the filter net to be blocked, resulting in failure to discharge the material normally. Utility Model Content

[0005] In order to promptly improve the problem of ore getting stuck in the filter holes and causing filter screen clogging, the present application provides a spiral classifier.

[0006] The present application provides a spiral classifier, which adopts the following technical solution:

[0007] A spiral classifier comprises a barrel body, a high platform and a low platform located at both ends of the barrel body, a main shaft penetrating the barrel body and rotatably connected to the barrel body, a spiral blade fixed to the main shaft and located inside the barrel body, and a driving motor driving the main shaft to rotate. The two ends of the barrel body are respectively rotatably connected to the high platform and the top of the low platform, and one end of the main shaft is fixed to the output end of the driving motor.

[0008] By adopting the above technical solution, the barrel body is passed through the main shaft, the spiral blades are fixedly connected to the main shaft in the barrel, the output end of the driving motor is fixedly connected to one end of the main shaft, the main shaft is driven to rotate by the driving motor, and the main shaft drives the spiral blades and the barrel body to rotate.

[0009] Optionally, a toothed wheel is provided on the outer wall ring of one end of the barrel body, and a speed change gear is provided on the elevated platform, and the speed change gear is meshed with the toothed wheel on the outer wall of the barrel body.

[0010] Through the above solution, the driving motor rotates the speed gear, and the speed gear meshes with the toothed wheel to drive the barrel body to rotate.

[0011] Optionally, the speed change gear is fixedly connected with a pulley, and the pulley and the main shaft are fixedly connected to one end of the driving motor and are connected through a linkage belt.

[0012] Through the above solution, when the driving motor drives the main shaft to rotate, the pulley rotates with the main shaft under the action of the connecting belt, thereby driving the speed change gear to rotate.

[0013] Optionally, the circumferential surface of the barrel body is provided with holes of different diameters.

[0014] Through the above scheme, holes with different apertures are arranged on the barrel body, so that ore materials of different sizes can be filtered out conveniently.

[0015] Optionally, a finished product box is provided at the lower part of the barrel body.

[0016] Through the above scheme, the ore material can be collected in a finished product box after filtering.

[0017] Optionally, filter layers with different pore sizes are provided in the finished product box.

[0018] Through the above scheme, the ore material is filtered through the holes of the barrel and then enters the holes in the finished product box for secondary filtration.

[0019] Optionally, the elevated platform and the low platform are placed opposite to each other and the elevated platform is higher than the low platform.

[0020] Through the above scheme, the high platform is set higher than the low platform, so that the main axis passing through the barrel body can be set tilted.

[0021] Optionally, bearing rings are fixedly provided on the top of the high platform and the low platform, and both ends of the main shaft are passed through the bearing rings.

[0022] Through the above solution, the main shaft is rotatably connected with the high platform and the low platform by passing through the bearing ring.

[0023] Optionally, one end of the barrel body is open, a triangular rod is fixedly provided at the opening, the main shaft passes through the triangular rod and is rotatably connected to the triangular rod, and the edge of the triangular rod abuts against the inner wall of the barrel body.

[0024] Through the above solution, the setting of the triangular rod enables the material to enter the interior of the barrel through the opening.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. A spiral classifier includes a barrel, a main shaft, an elevated platform, a low platform, spiral blades and a driving motor. The two ends of the main shaft are obliquely connected to the top of the elevated platform and the top of the low platform. The barrel is penetrated on the main shaft, and the spiral blades are fixedly connected to the main shaft in the barrel. The driving motor is arranged on the main shaft on one side of the elevated platform. When the driving motor is started, the barrel and the spiral blades drive the ore material to turn over. If the ore is stuck in the filter hole, the barrel rotates, and the stuck ore is loosened under the action of centrifugal force. At the same time, the ore stuck at the upper end will also be loosened due to the action of gravity, and it is not easy to be stuck in the filter hole for a long time.

[0027] 2. A toothed wheel is fixed around the side wall of the barrel, which makes it convenient for the generator to drive the barrel to rotate through the speed change gear and the toothed wheel on the barrel. The internal rotating blades rotate and the external barrel rotates at different speeds. The rotation of the barrel causes the ore to be subjected to centrifugal force. Under the multiple effects of the rotating blades, centrifugal force and gravity, the ore is not easily stuck in the filter holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a stereogram of a spiral classifier.

[0029] Figure 2 It is a side view of a spiral classifier.

[0030] Figure 3 It is a schematic diagram of the driving motor transmission process.

[0031] Figure 4 This is the finished box structure diagram.

[0032] Explanation of the reference numerals: 1. barrel; 2. large hole; 3. small hole; 4. elevated platform; 5. low platform; 6. finished product box; 7. toothed wheel; 8. main shaft; 9. spiral blade; 10. driving motor; 11. bearing ring; 12. speed gear; 13. connecting belt; 14. pulley; 15. discharge valve; 16. filter layer; 17. filter tube; 18. baffle; 19. positioning column; 20. center axis; 21. iron rod; 22. triangular rod. DETAILED DESCRIPTION

[0033] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0034] The present application embodiment discloses a spiral classifier, such as Figure 1 and Figure 2As shown, a spiral classifier includes an inclined cylindrical hollow barrel 1, a frame supporting both ends of the barrel 1, a main shaft 8, a driving motor 10 for driving the main shaft 8 to rotate, and a finished product box 6 fixed to the bottom of the frame. A high platform 4 and a low platform 5 are respectively provided at both ends of the frame, and a bearing ring 11 is fixed at the top of the high platform 4 and the low platform 5, and the height of the high platform 4 is greater than the height of the low platform 5. The side of the barrel 1 close to the low platform 5 is closed, and the side of the barrel 1 close to the high platform 4 is open. The main shaft 8 is installed in the barrel 1 and the two ends are rotatably connected to the bearing ring 11 at the top of the high platform 4 and the low platform 5. The end of the main shaft 8 close to the opening of the barrel 1 is fixed to the output end of the driving motor 10.

[0035] A triangular rod 22 is provided on one side of the opening of the barrel body 1, and the three ends of the triangular rod 22 are fixed to the inner wall of the barrel body 1. The main shaft 8 passes through the triangular rod 22 and is rotatably connected to the triangular rod 22. A toothed wheel 7 is provided on the outer wall of the opening side of the barrel body 1, and a plurality of large filtering holes 2 are evenly arranged on the outer wall of the barrel body 1 on one side close to the low platform 5, and a plurality of small filtering holes 3 are evenly arranged on the outer wall of the barrel body 1 on one side close to the high platform 4.

[0036] Reference Figure 1 and Figure 3 , a spiral blade 9 is fixedly connected to the main shaft 8 in the barrel body 1, and a linking belt 13 is rotatably connected to one end of the main shaft 8 connected to the output end of the driving motor 10, and the linking belt is located between the bearing ring 11 at the top of the elevated platform 4 and the driving motor 10. An iron rod 21 is horizontally arranged at the bottom of the elevated platform 4 parallel to the ground, and a positioning column 19 is fixed on the iron rod 21, and a central shaft 20 is arranged on the positioning column 19, and the central shaft 20 is penetrated through the positioning column 19 and is rotatably connected to the positioning column 19. A pulley 14 is fixedly arranged at one end of the central shaft 20 away from the barrel body 1, and a speed change gear 12 is fixedly arranged at the other end, and the speed change gear 12 is externally meshed with the toothed wheel 7 on the outer wall of the barrel body 1. The linking belt 13 is sleeved outside the pulley 14. When the driving motor 10 drives the main shaft 8 to rotate, the pulley 14 is linked under the action of the linking belt 13, thereby driving the speed change gear 12 to rotate, and the speed change gear 12 is connected with the toothed wheel 7 on the outer wall of the barrel body 1 to drive the barrel body 1 to rotate.

[0037] Reference Figure 4 A partition is provided in the finished product box 6, which divides the finished product box 6 into a coarse box and a fine box. The coarse box is located directly below the side where the large hole 2 is provided on the outer wall of the barrel body 1, and the fine box is located directly below the side where the small holes 3 are provided on the outer wall of the barrel body 1. A filter layer 16 is provided on the coarse box, and small holes 3 with the same aperture size as the small holes 3 on the outer wall of the barrel body 1 are evenly opened on the filter layer 16. The bottom wall of the partition abuts against the upper wall of the filter layer 16, and the outer walls on both sides of the filter layer 16 abut against the inner wall of the finished product box 6, and the bottom of the filter layer 16 is connected to the fine box.

[0038] A filter tube 17 is provided on the side wall of the rough box, and the filter tube 17 is connected to the top of the filter layer 16 for discharging larger ores. A discharge valve 15 is provided at the bottom of the finished product box 6, through which the small ores in the fine box and filtered by the filter layer 16 can be discharged.

[0039] In actual work, as the spiral blades 9 rotate and stir the ore particles in the barrel body 1, smaller particles of ore are first filtered from the side of the outer wall of the barrel body 1 where the small holes 3 are provided to the fine box of the finished product box 6; the ore particles are transmitted to one end of the elevated platform 4 along with the spiral blades 9, and larger particles are filtered from the side of the outer wall of the barrel body 1 where the large holes 2 are provided to the finished product box 6, and are filtered again by the filter layer 16 to filter some of the remaining small particles to the bottom of the finished product box 6, and the large particles of ore are discharged from the filter tube 17, and the discharge valve is opened, and the small particles of ore below the filter layer 16 and the small particles of ore in the fine box are discharged from the bottom of the finished product box 6.

[0040] The working principle of a spiral classifier: When working, the staff adds the ore material from one end of the opening of the barrel body 1, sprays water into the barrel body 1, starts the drive motor 10, and the drive motor 10 drives the spiral blade 9 on the main shaft 8 to rotate. The drive motor 10 drives the speed change gear 12 to rotate through the linkage belt 13. The speed change gear 12 is externally meshed with the toothed wheel 7 to drive the barrel body 1 to rotate. The rotation speed of the spiral blade 9 is different from that of the barrel body 1. The barrel body 1 and the spiral blade 9 drive the ore material to flip, and the ore material is continuously flipped in both directions. Grinding is performed to decompose the ore material efficiently. The ore stuck on the filter hole during filtering can automatically fall from the filter hole by gravity. The smaller ore is filtered through the small hole 3 of the barrel body 1 and falls into the fine box in the finished product box 6. The larger ore is filtered through the large hole 2 of the barrel body 1 and falls into the coarse box. The coarse box may be mixed with small ore. The ore in the coarse box is filtered again to complete the classification of the ore material. The classified coarse ore and fine ore can be taken out through the filter tube 17 and the discharge valve 15.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A spiral classifier, characterized in that: The invention comprises a barrel body (1), an elevated platform (4) and a low platform (5) located at two ends of the barrel body (1), a main shaft (8) passing through the barrel body (1) and rotatably connected to the barrel body (1), a spiral blade (9) fixed to the main shaft (8) and located inside the barrel body (1), and a driving motor (10) driving the main shaft (8) to rotate, wherein the two ends of the main shaft (8) are respectively rotatably connected to the top of the low platform (5) and the high platform (4), and one end of the main shaft (8) is fixed to the output end of the driving motor (10).

2. A spiral classifier according to claim 1, characterized in that: A toothed wheel (7) is provided on the outer wall of one end of the barrel body (1), and a speed change gear (12) is provided on the elevated platform (4), and the speed change gear (12) is meshed with the toothed wheel (7).

3. A spiral classifier according to claim 2, characterized in that: The speed change gear (12) is fixedly connected with a pulley (14), and the pulley (14) is connected to one end of the main shaft (8) fixedly connected to the drive motor (10) through a linkage belt (13).

4. A spiral classifier according to claim 1, characterized in that: The circumferential surface of the barrel body (1) is provided with holes of different diameters.

5. A spiral classifier according to claim 1, characterized in that: A finished product box (6) is provided at the lower part of the barrel body (1).

6. A spiral classifier according to claim 5, characterized in that: The finished product box (6) is provided with filter layers (16) with different pore sizes.

7. A spiral classifier according to claim 1, characterized in that: The elevated platform (4) and the low platform (5) are arranged opposite to each other, and the elevated platform (4) is higher than the low platform (5).

8. A spiral classifier according to claim 7, characterized in that: The top ends of the elevated platform (4) and the low platform (5) are fixedly provided with bearing rings (11), and both ends of the main shaft (8) are passed through the bearing rings (11).

9. The spiral classifier according to claim 1, characterized in that: One end of the barrel body (1) is open, and a triangular rod (22) is fixedly provided at the open end. The main shaft (8) is rotatably connected to the triangular rod (22), and the three ends of the triangular rod (22) are fixedly connected to the inner wall of the barrel body (1).

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