Double-layer ore discharge chute device with screen
By designing a double-layer ore drainage chute device with screen, the equipment wear and blockage caused by crushed steel balls in traditional ball mills is solved, and the effective separation of ore and ore liquid is achieved, and the production efficiency and equipment stability are improved.
Patent Information
- Application Number
- CN202420249424.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-01
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-02-01
AI Technical Summary
The crushed grinding medium (broken steel balls) in traditional ball mills are discharged with the ore slurry, causing equipment wear and clogging, affecting the working efficiency of the ball mill.
A double-layer ore drainage chute device with screen is designed, including an ore drainage box, a first row ore drainage chute, a second row ore drainage chute, a screen, a ball storage bin and a mine storage bin. The screen is fixed by a snap structure. On the chute, screens are provided with screens for separation of slurry and crushed steel balls, adapting to different sizes of chutes and crushed steel balls.
It effectively reduces wear of spiral graders, pumps, and pipelines, avoids equipment blockage, improves production efficiency, and simplifies the maintenance and replacement process.
Smart Images
Figure CN222174393U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ore dressing equipment, and more specifically to a double-layer ore discharging chute device with a screen. Background Art
[0002] The main work of the ball mill is to impact and grind the mineral particles. In the first stage of the grinding process of the grate ball mill, the ball mill consists of a hollow cylindrical shell rotating around its axis, and the cylinder is filled with grinding media (steel balls, steel rods or ceramic balls, etc.). When working, the slurry is fed into the ball mill, and the ball mill rotates around the horizontal axis at a certain rotation speed. The grinding media and raw materials inside the cylinder are broken and ground under the action of gravity, centrifugal force and friction. Finally, after the ore particles reach the qualified particle size, they are fed to the discharge box through the grate plate discharge port and discharged through the discharge chute.
[0003] In traditional processes, the crushed grinding media (broken steel balls) are discharged uniformly with the slurry and follow the slurry into the subsequent process. These unremoved broken steel balls are not conducive to a closed-circuit grinding operation, and may accelerate the wear of facilities and equipment such as pump pools, cyclones, and classifiers. If a large amount of broken steel balls accumulate in the pump pool, it will change the flow state of the slurry in the pipeline and cause pipe blockage. For the mill itself, the accumulation of a large number of broken steel balls in the mill will change the movement trajectory of the grinding media in the mill and affect the grinding efficiency; at the same time, it may block the grate plate discharge port of the ball mill, seriously affecting the processing capacity. Utility Model Content
[0004] The purpose of the utility model is to overcome the shortcomings of the prior art that the broken grinding media (broken steel balls) will be discharged uniformly with the ore pulp, causing equipment wear or blockage and affecting the working efficiency of the ball mill. A double-layer ore discharge chute device with a screen is provided to solve the above shortcomings.
[0005] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is:
[0006] The utility model discloses a double-layer ore discharge chute device with a screen, comprising an ore discharge box, a first ore discharge chute, a second ore discharge chute, a screen, a ball collecting bin and an ore collecting bin, wherein the ore discharge box is connected to the first ore discharge chute, the lower end of the first ore discharge chute is provided with the second ore discharge chute, the lower end of the first ore discharge chute is connected with the ball collecting bin, and the lower end of the second ore discharge chute is connected with the ore collecting bin, the first ore discharge chute is provided with holes, a card slot is provided in the hole, the screen is engaged with the card slot, an upper cover plate is provided on the screen, the upper cover plate is arranged on the upper surface of the card slot, the size of the upper cover plate is the same as the size of the hole on the first ore discharge chute, a buckle plate is connected to the lower part of the upper cover plate through a connecting plate, the buckle plate is arranged at the bottom of the card slot, the size of the buckle plate is smaller than the size of the upper cover plate, the size of the buckle plate is larger than the size of the inner frame of the card slot, sieve holes are provided on the screen for separating ore pulp and crushed steel balls, and there are at least two kinds of screens for adapting to first ore discharge chutes of different sizes and crushed steel balls of different sizes.
[0007] Preferably, the first ore discharge chute is a straight trough, and the second ore discharge chute includes a straight trough and a curved trough, the straight trough is arranged at the lower end of the first ore discharge chute, one end of the curved trough is connected to the straight trough, and the other end of the curved trough is connected to the ore collecting bin.
[0008] Preferably, a first screw hole is provided on the slot, a second screw hole is provided on the upper cover plate, the screen is connected to the first ore discharge chute by screws passing through the second screw hole and the first screw hole, and the length of the screen is the same as the length of the straight slot.
[0009] Preferably, the ore discharge box includes a left side plate, a right side plate, a front side plate, a rear side plate, a bottom plate and a top plate, the two sides of the left side plate are respectively connected to the front side plate and the rear side plate, the right side plate is connected between the front side plate and the rear side plate, the upper ends of the left side plate, the right side plate, the front side plate and the rear side plate are connected to the top plate, and the lower ends of the left side plate, the right side plate, the front side plate and the rear side plate are connected to the bottom plate.
[0010] Preferably, the rear side plate is provided with a discharge inlet, the front side plate is connected to the first discharge chute, the front side plate is provided with a discharge outlet, and both the first discharge chute and the second discharge chute are provided with side baffles.
[0011] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:
[0012] The utility model discloses a double-layer ore discharge chute device with a screen, which has a simple structure and is easy to install. The screens are of various types and have a snap-on structure, which is easy to replace and maintain conveniently and quickly. The ore and the ore liquid are separated and discharged by arranging a double-layer ore discharge chute and a screen structure, which effectively reduces the wear of the spiral classifier, pump, and pipeline, reduces equipment accidents, stabilizes the production process, avoids manpower-consuming cleaning of residues that clog the equipment, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1This is a structural diagram of a double-layer ore discharge chute device with a screen according to the utility model;
[0014] Figure 2 This is a structural diagram of the ore discharge box of the utility model;
[0015] Figure 3 This is the structural diagram of the first row of ore chute of the utility model;
[0016] Figure 4 This is a structural diagram of the screen of the present utility model.
[0017] In the figure: 1. ore discharge box; 11. left side plate; 12. right side plate; 13. front side plate; 14. rear side plate; 15. bottom plate; 16. top plate; 17. ore discharge entrance; 18. ore discharge exit; 2. first ore discharge chute; 21. slot; 22. first screw hole; 3. second ore discharge chute; 31. straight slot; 32. curved slot; 4. sieve; 41. upper cover plate; 42. snap plate; 43. connecting plate; 44. second screw hole; 45. sieve hole; 5. ball collecting bin; 6. ore collecting bin. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0019] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.
[0020] Combination Figure 1 and Figure 3-Figure 4The utility model discloses a double-layer ore discharging chute device with a screen, comprising an ore discharging box 1, a first ore discharging chute 2, a second ore discharging chute 3, a screen 4, a ball collecting bin 5 and an ore collecting bin 6. The ore discharging box 1 is connected to the first ore discharging chute 2, the lower end of the first ore discharging chute 2 is provided with the second ore discharging chute 3, the lower end of the first ore discharging chute 2 is connected with a ball collecting bin 5 for containing broken steel balls, the lower end of the second ore discharging chute 3 is connected with an ore collecting bin 6 for containing ore slurry, the first ore discharging chute 2 is provided with a hole, a slot 21 is provided in the hole, the screen 4 is engaged with the slot 21, and the upper surface of the screen 4 is flush with the inner bottom surface of the first ore discharging chute 2 The slot 21 is flat, and an upper cover plate 41 of the screen 4 is provided on the upper surface of the slot 21. The size of the upper cover plate 41 is the same as the size of the holes on the first row of ore chute 2. A connecting plate 43 is connected under the upper cover plate 41, and a snap plate 42 is connected under the connecting plate 43. The snap plate 42 is arranged at the bottom of the slot 21. The size of the snap plate 42 is larger than the size of the inner frame of the slot 21, and the size of the snap plate 42 is smaller than the size of the upper cover plate 41. Screen holes 45 are opened on the screen 4 for separating ore pulp and crushed steel balls. The screen 4 has various specifications, and screens 4 of different sizes and apertures can be replaced according to different sizes of first row of ore chutes 2 and different sizes of crushed steel balls.
[0021] The first ore discharge chute 2 is a straight inclined trough, and the second ore discharge chute 3 is parallel and superimposed on the bottom of the first ore discharge chute 2. The second ore discharge chute 3 includes a straight trough 31 and a curved trough 32. The straight trough 31 is arranged at the lower end of the first ore discharge chute 2, and the straight trough 31 is connected to one end of the curved trough 32, and the other end of the curved trough 32 is connected to the ore collecting bin 6.
[0022] The length of the straight groove 31 is the same as that of the screen 4 . The slot 21 is provided with a first screw hole 22 . The upper cover plate 41 is provided with a second screw hole 44 . The screw passes through the second screw hole 44 and the first screw hole 22 to connect the screen 4 to the first ore discharge chute 2 .
[0023] Combination Figure 2 The discharge box 1 includes a left side plate 11, a right side plate 12, a front side plate 13, a rear side plate 14, a bottom plate 15 and a top plate 16. Both sides of the left side plate 11 are connected to the front side plate 13 and the rear side plate 14 respectively, and the other sides of the front side plate 13 and the rear side plate 14 are connected to the right side plate 12. The top plate 16 is connected to the upper ends of the left side plate 11, the right side plate 12, the front side plate 13 and the rear side plate 14, and the bottom plate 15 is connected to the lower ends of the left side plate 11, the right side plate 12, the front side plate 13 and the rear side plate 14.
[0024] Combination Figure 1 and Figure 2 A discharge entrance 17 is provided on the rear side plate 14, a first discharge chute 2 is connected to the front side plate 13, a discharge outlet 18 is provided on the front side plate 13, and baffles are provided on both sides of the first discharge chute 2 and the second discharge chute 3 to prevent broken steel balls and ore pulp from spilling out.
[0025] Working principle: The screen 4 is engaged on the slot 21, and the slurry and broken steel balls are fed to the discharge box 1 through the hollow shaft neck, and discharged to the first discharge chute 2 through the discharge outlet 18. After passing through the screen 4, the slurry enters the second discharge chute 3 through the sieve hole 45. Due to the large volume of the broken steel balls, they cannot pass through the sieve hole 45 and remain in the first discharge chute 2. The broken steel balls are discharged to the ball collecting bin 5 along the first discharge chute 2, and the slurry is discharged to the ore collecting bin 6 along the second discharge chute 3. When the flow rate of the slurry and broken steel balls increases, the screen 4 will be slightly shaken by the change of the flow rate of the slurry and broken steel balls when it is not fixed with screws, so that the slurry passes through the sieve hole 45 faster. When the size of the broken steel balls is relatively small, the screen 4 can be removed and replaced with a screen 4 with a smaller sieve hole 45 for separation.
[0026] In summary: the utility model is a double-layer ore discharge chute device with a screen, which has a simple structure and is easy to install. The screens 4 are of many types and are snap-on structures for easy replacement, and maintenance is convenient and quick. The ore and the ore liquid are separated and discharged by setting the first ore discharge chute 2, the second ore discharge chute 3 and the screen 4 structure, which effectively reduces the wear of the spiral classifier, pumps, and pipelines, reduces equipment accidents, stabilizes the production process, avoids manpower-consuming cleaning of residues that clog the equipment, and improves production efficiency.
[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A double-layer ore discharge chute device with a screen, comprising an ore discharge box (1), a first ore discharge chute (2), a second ore discharge chute (3), a screen (4), a ball collection bin (5) and an ore collection bin (6), characterized in that: The ore discharge box (1) is connected to a first ore discharge chute (2), a second ore discharge chute (3) is arranged at the lower end of the first ore discharge chute (2), a ball collecting bin (5) is connected to the lower end of the first ore discharge chute (2), and a ore collecting bin (6) is connected to the lower end of the second ore discharge chute (3). A hole is opened on the first ore discharge chute (2), a slot (21) is arranged in the hole, a screen (4) is engaged with the slot (21), an upper cover plate (41) is arranged on the screen (4), and the upper cover plate (41) is provided with a The upper cover plate (41) is arranged on the upper surface of the slot (21), the size of the upper cover plate (41) is the same as the size of the hole on the first row ore chute (2), a buckle plate (42) is connected to the lower part of the upper cover plate (41) through a connecting plate (43), the buckle plate (42) is arranged at the bottom of the slot (21), the size of the buckle plate (42) is smaller than the size of the upper cover plate (41), and the size of the buckle plate (42) is larger than the size of the inner frame of the slot (21), and the screen (4) is provided with sieve holes (45) for separating the ore pulp and the crushed steel balls.
2. A double-layer ore discharge chute device with a screen according to claim 1, characterized in that: The first ore discharge chute (2) is a straight trough, and the second ore discharge chute (3) comprises a straight trough (31) and a curved trough (32), wherein the straight trough (31) is arranged at the lower end of the first ore discharge chute (2), one end of the curved trough (32) is connected to the straight trough (31), and the other end of the curved trough (32) is connected to the ore collecting bin (6).
3. A double-layer ore discharge chute device with a screen according to claim 1, characterized in that: The clamping slot (21) is provided with a first screw hole (22), the upper cover plate (41) is provided with a second screw hole (44), the screen (4) is connected to the first ore discharge chute (2) by screws passing through the second screw hole (44) and the first screw hole (22), and the length of the screen (4) is the same as the length of the straight slot (31).
4. A double-layer ore discharge chute device with a screen according to claim 1, characterized in that: The ore discharge box (1) comprises a left side plate (11), a right side plate (12), a front side plate (13), a rear side plate (14), a bottom plate (15) and a top plate (16); the two sides of the left side plate (11) are respectively connected to the front side plate (13) and the rear side plate (14); the right side plate (12) is connected between the front side plate (13) and the rear side plate (14); the top plate (16) is connected to the upper ends of the left side plate (11), the right side plate (12), the front side plate (13) and the rear side plate (14); and the bottom plate (15) is connected to the lower ends of the left side plate (11), the right side plate (12), the front side plate (13) and the rear side plate (14).
5. A double-layer ore discharge chute device with a screen according to claim 4, characterized in that: The rear side plate (14) is provided with a discharge inlet (17), the front side plate (13) is connected to the first discharge chute (2), the front side plate (13) is provided with a discharge outlet (18), and the first discharge chute (2) and the second discharge chute (3) are both provided with side baffles.