An ore crushing and screening device

Abstract

The utility model discloses a kind of ore crushing and screening devices including crushing mechanism and bottom support, the bottom support is fixedly connected in the bottom end inner wall of crushing mechanism, further includes: multiple sieve plates, movably connected to the inner wall of bottom support, and the hole diameter of multiple sieve plates is arranged in decreasing from top to bottom;Anti-blocking mechanism is set at the bottom end of each sieve plate;The anti-blocking mechanism includes: multiple square frame bases are respectively set at the hole bottom of each sieve plate;Multiple cone blocks are movably connected to the inner wall of each square frame base, and the bottom end outer wall of cone block and the bottom end inner wall of square frame base are simultaneously fixedly connected with spring;Connecting frame is fixedly connected to the bottom end outer wall of multiple square frame bases, and one side outer wall of connecting frame passes through bottom support and is fixedly connected with side support plate two;L-shaped support two, the ore crushing and screening device disclosed in the utility model has the effect of guaranteeing long-time screening effect and reducing the possibility of stone block jamming.

Description

Technical Field

[0001] This utility model relates to the field of ore crushing technology, and in particular to an ore crushing and screening device. Background Technology

[0002] Crushers are the main equipment in mining, primarily used for crushing stones of varying sizes. Ordinary ore crushing and screening devices typically separate ore of different diameters by setting up screen plates after crushing and allowing stones to fall along the screen plates. However, due to the irregular shape of the stones, corners may get stuck in the holes of the screen plates.

[0003] Existing technologies include using vibration to dislodge the stone, but vibration cannot provide enough upward force to completely remove the stone from the hole, thus failing to guarantee the anti-blocking effect. Utility Model Content

[0004] This utility model discloses an ore crushing and screening device, which aims to solve the technical problem of existing technologies, including the use of vibration to separate stones, but the vibration cannot provide enough upward force to completely remove stones from the holes, and the anti-clogging effect cannot be guaranteed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An ore crushing and screening device includes a crushing mechanism and a bottom support. The bottom support is fixedly connected to the inner wall of the bottom end of the crushing mechanism. The device also includes: multiple screen plates movably connected to the inner wall of the bottom support, with the hole diameter of the multiple screen plates decreasing from top to bottom; and an anti-blocking mechanism disposed at the bottom end of each screen plate.

[0007] The anti-blocking mechanism includes: multiple square frame bases, each disposed at the bottom of the holes in each sieve plate; multiple conical blocks, each movably connected to the inner wall of each square frame base, and a spring is fixedly connected between the outer wall of the bottom end of the conical block and the inner wall of the bottom end of the square frame base; a connecting frame, fixedly connected to the outer wall of the bottom end of the multiple square frame bases, and a side support plate II is fixedly connected to one side of the outer wall of the connecting frame through the bottom support; and an L-shaped support II, fixedly connected to one side of the outer wall of the side support plate II, and a hydraulic rod II is fixedly connected between the outer wall of the L-shaped support II and the outer wall of the bottom support.

[0008] The anti-blocking mechanism also includes: multiple limiting rods, fixedly connected to one side outer wall of the bottom bracket, and the multiple limiting rods are movably inserted into the side support plate 2; multiple square through slots, which are set through one side inner wall of the bottom bracket, and the connecting frame is movably inserted into the square through slots.

[0009] The anti-blocking mechanism, controlled by a hydraulic rod, moves multiple conical blocks horizontally below the holes. The springs rebound, causing the conical blocks to push upwards, providing upward pressure and dislodging the stones from the holes. This ensures long-term sieving efficiency and reduces the possibility of stone blockage.

[0010] In a preferred embodiment, the inner walls of opposite sides of the U-shaped support frame are movably connected to sealing plates, and the two sides of the sealing plates are respectively fixedly connected to hinge rods. The hinge rods are rotatably connected inside the U-shaped support frame, and the bottom inner wall of the U-shaped support frame is fixedly connected to a protruding strip, which is movably fitted to one side of the sealing plate.

[0011] Multiple L-shaped brackets are fixedly connected to one side of the outer wall of the bottom bracket, and each L-shaped bracket is fixedly connected to a stop rod on the same side of the outer wall. One end of the multiple stop rods is simultaneously movably attached to one side of the outer wall of the sealing plate.

[0012] By installing a sealing plate, which is hinged to the end of each screen plate via a hinged rod, the ore will not fall off during the upward swaying of the screen plate. When the sealing plate moves to the end, the pressure of the push rod can push the sealing plate open. This structure can extend the time that the ore stays on the screen plate for screening, optimize the screening effect, and also prevent ore that has not been screened from falling off first, resulting in insufficient screening.

[0013] In a preferred embodiment, the inner walls of the opposite sides of the bottom support are respectively obliquely fixedly connected with a plurality of sliding grooves, and a plurality of screen plates are respectively movably connected in the plurality of sliding grooves. The same side of the plurality of screen plates passes through the bottom support and is fixedly connected with a side support plate.

[0014] A hydraulic rod is obliquely fixed to one side of the outer wall of the bottom support, and the output end of the hydraulic rod is fixedly connected to the side support plate. Each screen plate is fixedly connected to a back plate and a U-shaped support frame at both ends, and the back plate and the U-shaped support frame are arranged opposite to each other.

[0015] Multiple material feeding troughs are fixedly connected to one side of the outer wall of the bottom support, and the length of the multiple material feeding troughs decreases from top to bottom. An extension plate is fixedly connected to one end of each screen plate, and the bottom end of the extension plate is movably attached to the inner wall of the bottom end of the material feeding trough.

[0016] The hydraulic rod can simultaneously drive multiple screen plates to reciprocate along the chute, simulating the shaking of the screen plates. At the same time, the extension plate ensures that the screened stones can fall smoothly into the corresponding feed chute. With this structure, screening can be achieved after crushing, and screening efficiency can be optimized.

[0017] As described above, an ore crushing and screening device includes a crushing mechanism and a bottom support. The bottom support is fixedly connected to the inner wall of the bottom end of the crushing mechanism. It also includes: multiple screen plates movably connected to the inner wall of the bottom support, with the hole diameters of the multiple screen plates decreasing from top to bottom; an anti-blocking mechanism disposed at the bottom end of each screen plate; the anti-blocking mechanism includes: multiple square frame bases, respectively disposed at the bottom of the holes of each screen plate; multiple conical blocks movably connected to the inner wall of each square frame base, with springs fixedly connected between the outer wall of the bottom end of the conical blocks and the inner wall of the bottom end of the square frame base; a connecting frame fixedly connected to the outer wall of the bottom end of the multiple square frame bases, with one outer wall of the connecting frame passing through the bottom support and fixedly connected to a second side support plate; and an L-shaped support plate fixedly connected to one outer wall of the second side support plate, with a hydraulic rod fixedly connected between the L-shaped support plate and the outer wall of the bottom support. The ore crushing and screening device provided by this utility model has the technical effect of ensuring long-term screening performance and reducing the possibility of stone blockage. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall appearance structure of an ore crushing and screening device proposed in this utility model.

[0019] Figure 2 This is a schematic diagram of the overall structure of the anti-blocking mechanism of an ore crushing and screening device proposed in this utility model.

[0020] Figure 3 This is a schematic diagram showing the disassembly of the conical extrusion block of an ore crushing and screening device proposed in this utility model.

[0021] Figure 4 This is a schematic diagram of the bottom structure of an ore crushing and screening device proposed in this utility model.

[0022] Figure 5 This is a schematic diagram showing the disassembled structure of a single-layer screening device for ore crushing and screening proposed in this utility model.

[0023] In the attached diagram: 1. Crushing mechanism; 2. Bottom support; 3. Anti-blocking mechanism; 4. Feed chute; 5. Slide chute one; 6. Screen plate; 7. Back plate; 8. Side support plate one; 9. Hydraulic rod one; 10. L-shaped support one; 11. Sealing plate; 12. Hinge rod; 13. U-shaped support frame; 14. Abutment rod; 15. Extension plate; 16. Protruding strip; 301. Side support plate two; 302. L-shaped support two; 303. Hydraulic rod two; 304. Limiting rod; 305. Square through slot; 306. Conical abutment block; 307. Connecting frame; 308. Square frame base; 309. Spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] The ore crushing and screening device disclosed in this utility model is mainly used in ore crushing scenarios.

[0026] Reference Figures 1-3 An ore crushing and screening device includes a crushing mechanism 1 and a bottom support 2, the bottom support 2 being fixedly connected to the inner wall of the bottom end of the crushing mechanism 1, and further includes:

[0027] Multiple sieve plates 6 are movably connected to the inner wall of the bottom support 2, and the diameter of the holes in the multiple sieve plates 6 decreases from top to bottom;

[0028] Anti-blocking mechanism 3 is located at the bottom of each sieve plate 6;

[0029] The blocking mechanism 3 includes:

[0030] Multiple square bases 308 are respectively set at the bottom of the holes in each sieve plate 6;

[0031] Multiple conical blocks 306 are movably connected to the inner wall of each square base 308, and springs 309 are fixedly connected between the bottom outer wall of the conical block 306 and the bottom inner wall of the square base 308.

[0032] The connecting frame 307 is fixedly connected to the bottom outer wall of multiple square frame bases 308, and one side outer wall of the connecting frame 307 passes through the bottom bracket 2 and is fixedly connected to the side support plate 301.

[0033] L-shaped support 302 is fixedly connected to the outer wall of one side of side support plate 301. A hydraulic rod 303 is also fixedly connected between the outer wall of L-shaped support 302 and bottom support 2. Through the anti-blocking mechanism 3, the tops of multiple conical blocks 306 are initially positioned between two adjacent holes, compressing the spring 309 below the conical blocks 306. After a certain period of time, the hydraulic rod 303 controls the multiple conical blocks 306 to move horizontally to below the holes. The spring 309 rebounds, causing the conical blocks 306 to push upward, providing upward squeezing force. This allows the stones to detach from the holes and slide down the slope, thus ensuring a long-term screening effect and reducing the possibility of stone blockage.

[0034] Reference Figure 2 In a preferred embodiment, the anti-blocking mechanism 3 further includes:

[0035] Multiple limiting rods 304 are fixedly connected to one side outer wall of the bottom bracket 2, and the multiple limiting rods 304 are movably inserted into the side support plate 301;

[0036] Multiple square through slots 305 are provided through one inner wall of the bottom support 2, and the connecting frame 307 is movably inserted into the square through slots 305.

[0037] Reference Figure 4 and Figure 5 In a preferred embodiment, multiple sliding grooves 5 are obliquely fixedly connected to the inner walls of opposite sides of the bottom support 2, and multiple sieve plates 6 are movably connected in the multiple sliding grooves 5. The same side of the multiple sieve plates 6 passes through the bottom support 2 and is fixedly connected to a side support plate 8.

[0038] Reference Figure 4 and Figure 5 In a preferred embodiment, a hydraulic rod 9 is obliquely fixedly connected to one side outer wall of the bottom support 2, and the output end of the hydraulic rod 9 is fixedly connected to the side support plate 8. Each screen plate 6 has a back plate 7 and a U-shaped support frame 13 fixedly connected to both ends, and the back plate 7 and the U-shaped support frame 13 are arranged opposite to each other. The hydraulic rod 9 can synchronously drive multiple screen plates 6 to reciprocate along the slide groove 5 to realize the simulated shaking of the screen plates 6. The reciprocating shaking can accelerate the screening efficiency of the ore.

[0039] Reference Figure 4 and Figure 5 In a preferred embodiment, multiple feeding troughs 4 are fixedly connected to one outer wall of the bottom support 2, and the lengths of the multiple feeding troughs 4 decrease from top to bottom. An extension plate 15 is fixedly connected to one end of each screen plate 6, and the bottom end of the extension plate 15 is movably attached to the inner wall of the bottom end of the feeding trough 4. With the setting of the extension plate 15, the bottom of the extension plate 15 can be attached to the inner surface of the feeding trough 4 even when the screen plate 6 is moved to any height, thereby ensuring that the screened stones can fall smoothly into the corresponding feeding trough 4. By setting feeding troughs 4 of different lengths, stones of different specifications can be classified and stored separately. Under this structure, screening after crushing can be achieved, and screening efficiency can also be optimized.

[0040] Reference Figure 5In a preferred embodiment, sealing plates 11 are movably connected to the inner walls of opposite sides of the U-shaped support frame 13, and hinge rods 12 are fixedly connected to both sides of the sealing plates 11. The hinge rods 12 are rotatably connected to the U-shaped support frame 13, and a protrusion 16 is fixedly connected to the inner wall of the bottom end of the U-shaped support frame 13. The protrusion 16 is movably attached to one side of the sealing plate 11. The sealing plate 11 is hinged and sealed to the tail end of each screen plate 6 by the hinge rods 12. As the screen plate 6 moves horizontally, the sealing plate 11 can be limited by the protrusion 16 under the pressure of the ore inside and the action of gravity, so as to ensure that the sealing plate 11 seals the opening of the U-shaped support frame 13, so as to ensure that the ore will not fall during the upward horizontal movement of the screen plate 6.

[0041] Reference Figure 5 In a preferred embodiment, multiple L-shaped supports 10 are fixedly connected to one side of the outer wall of the bottom support 2, and each L-shaped support 10 is fixedly connected to a stop rod 14 on the same side of its outer wall. One end of the multiple stop rods 14 is simultaneously movably attached to one side of the outer wall of the sealing plate 11. When the sealing plate 11 moves to the end, the sealing plate 11 can be pushed open by the pressure of the stop rods 14, so that the ore above the screen plate 6 can fall into the feed trough 4 and be collected. This structure can prolong the time that the ore stays on the screen plate 6 for screening and optimize the screening effect. At the same time, after the sealing plate 11 is opened, the ore at the bottom position falls first, and the ore at the top is stopped by the inclined sealing plate 11. This can also prevent the ore that has not been screened from falling first, resulting in insufficient screening.

[0042] Working Principle: Ordinary ore crushing and screening devices typically use a screen plate 6 to allow stones to fall along it, thus screening ores of different diameters. However, due to the irregularity of the stones, their corners may get stuck in the holes of the screen plate 6. Existing technologies include using vibration to dislodge them, but vibration cannot provide enough upward force to completely dislodge the stones from the holes, and the anti-clogging effect cannot be guaranteed. Through the anti-clogging mechanism 3, the tops of multiple conical blocks 306 are initially positioned between two adjacent holes, compressing the springs 309 below the conical blocks 306. After a certain period of time, the hydraulic rod 303 controls the multiple conical blocks 306 to move horizontally below the holes, and the springs 309 rebound, causing the conical blocks 306 to push upward, providing upward extrusion force to dislodge the stones from the holes and guide them down the inclined plane. This ensures long-term screening effect and reduces the possibility of stone clogging.

[0043] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. An ore crushing and screening device, comprising a crushing mechanism (1) and a bottom support (2), wherein the bottom support (2) is fixedly connected to the inner wall of the bottom end of the crushing mechanism (1), characterized in that, Also includes: Multiple sieve plates (6) are movably connected to the inner wall of the bottom support (2), and the diameter of the holes in the multiple sieve plates (6) decreases from top to bottom; Anti-blocking mechanism (3) is installed at the bottom of each sieve plate (6); The anti-blocking mechanism (3) includes: Multiple square bases (308) are respectively set at the bottom of the holes of each sieve plate (6); Multiple conical blocks (306) are movably connected to the inner wall of each square base (308), and springs (309) are fixedly connected between the outer wall of the bottom end of the conical block (306) and the inner wall of the bottom end of the square base (308). The connecting frame (307) is fixedly connected to the bottom outer wall of multiple square bases (308), and one side outer wall of the connecting frame (307) passes through the bottom bracket (2) and is fixedly connected to the side support plate (301); L-shaped bracket 2 (302) is fixedly connected to the outer wall of one side of side support plate 2 (301), and hydraulic rod 2 (303) is fixedly connected between the outer wall of L-shaped bracket 2 (302) and bottom bracket (2).

2. The ore crushing and screening device according to claim 1, characterized in that, The anti-blocking mechanism (3) also includes: Multiple limiting rods (304) are fixedly connected to one side outer wall of the bottom bracket (2), and the multiple limiting rods (304) are movably inserted into the side support plate (301); Multiple square through slots (305) are provided through one side of the inner wall of the bottom bracket (2), and the connecting bracket (307) is movably inserted into the square through slots (305).

3. The ore crushing and screening device according to claim 1, characterized in that, The bottom support (2) has multiple sliding grooves (5) fixedly connected to the inner walls of the opposite sides, and multiple sieve plates (6) are movably connected in the multiple sliding grooves (5). The same side of the multiple sieve plates (6) passes through the bottom support (2) and is fixedly connected to a side support plate (8).

4. The ore crushing and screening device according to claim 3, characterized in that, A hydraulic rod (9) is obliquely fixed to one side of the outer wall of the bottom support (2), and the output end of the hydraulic rod (9) is fixedly connected to the side support plate (8). Each screen plate (6) is fixedly connected to a back plate (7) and a U-shaped support frame (13) at both ends, and the back plate (7) and the U-shaped support frame (13) are arranged opposite to each other.

5. The ore crushing and screening device according to claim 1, characterized in that, The bottom support (2) has multiple feeding troughs (4) fixedly connected to one side of its outer wall. The lengths of the multiple feeding troughs (4) decrease from top to bottom. Each screen plate (6) has an extension plate (15) fixedly connected to one end. The bottom end of the extension plate (15) is movably attached to the inner wall of the bottom end of the feeding trough (4).

6. The ore crushing and screening device according to claim 4, characterized in that, The inner walls of the opposite sides of the U-shaped support frame (13) are movably connected to the sealing plate (11), and the two sides of the sealing plate (11) are respectively fixedly connected to the hinge rod (12). The hinge rod (12) is rotatably connected inside the U-shaped support frame (13), and the inner wall of the bottom end of the U-shaped support frame (13) is fixedly connected to the protrusion (16). The protrusion (16) is movably attached to one side of the sealing plate (11).

7. The ore crushing and screening device according to claim 6, characterized in that, The bottom bracket (2) has multiple L-shaped brackets (10) fixedly connected to one side of its outer wall, and each L-shaped bracket (10) has a stop rod (14) fixedly connected to the same side of its outer wall. One end of each of the multiple stop rods (14) is simultaneously movably attached to one side of the outer wall of the sealing plate (11).

Images