An ore screening device

Abstract

This utility model discloses an ore screening device, including a base, a feed pipe, a discharge pipe, a screening cylinder connecting the feed pipe and the discharge pipe, a collection box disposed below the screening cylinder, a guide pipe, and a U-shaped block disposed below the collection box. The top of the collection box is open. The bottom of the U-shaped block is rotatably connected to the base, and the tops of both sides of the U-shaped block are rotatably connected to the feed pipe and the discharge pipe, respectively. The bottom of the guide pipe is fixedly connected to the U-shaped block, and one end of the guide pipe is inserted into the feed pipe. A water inlet pipe is provided inside the guide pipe, with one end extending outward from the guide pipe and the other end extending into the screening cylinder. A spray system is provided on the water inlet pipe extending into the screening cylinder. This utility model's ore screening device solves the technical problem of how to avoid soil clogging the screen holes during ore screening in the prior art.

Description

Technical Field

[0001] This utility model belongs to the technical field of ore processing equipment, specifically relating to an ore screening device. Background Technology

[0002] During the mining process, the mined ore needs to be screened to facilitate subsequent processing and crushing. When the ore is taken from the mine, large pieces of ore will have some soil adhering to their surface. At the construction site, large pieces of ore with soil adhering to their surface will cause the soil to clog the gaps in the screening mesh during the screening process, affecting the screening efficiency.

[0003] Chinese Utility Model Patent Publication No. CN220371539U discloses a screening device for oxide ores. The device includes a screening box and a collection / discharge box. A drum screening device is horizontally installed in the screening box, and a spiral discharge device is installed in the collection / discharge box. A drive device is connected to the left side of both the drum screening device and the spiral discharge device. A water storage tank is located below the collection / discharge box, and a water pump in the tank is connected to a dust removal device via a pipe. A vibration declogging device is installed on the box. An inlet is installed on the left side of the screening box, and outlets are installed on the right side of the screening box and both sides of the collection / discharge box. A controller is installed on the upper surface of the base. This utility model patent uses a vibration declogging device to prevent ore from clogging the screen holes; however, for screen holes clogged with mud, the declogging efficiency using vibration is relatively low. Utility Model Content

[0004] In view of the existing technical problems, this utility model aims to provide an ore screening device that can solve the technical problem of how to avoid mud clogging the screen holes when screening ores.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An ore screening device includes a base, a feed pipe, a discharge pipe, a screening cylinder connecting the feed pipe and the discharge pipe, and a collection box disposed below the screening cylinder, the collection box having an open top. Its structural features include a guide pipe and a U-shaped block disposed below the collection box. The bottom of the U-shaped block is rotatably connected to the base, and the tops of both sides of the U-shaped block are rotatably connected to the feed pipe and the discharge pipe, respectively. The bottom of the guide pipe is fixedly connected to the U-shaped block, and one end of the guide pipe is inserted into the feed pipe. A water inlet pipe is provided inside the guide pipe, one end of which extends outward from the guide pipe, and the other end extends into the screening cylinder. A spray system is provided on the water inlet pipe extending into the screening cylinder.

[0007] The screening cylinder can be formed by fixing the screen mesh with a frame. In use, the outer end of the inlet pipe of this application's ore screening device is connected to an external water supply device. The ore to be processed enters the screening cylinder through the outer end of the guide pipe and the feed pipe. The external water supply device is turned on, driving the discharge pipe, screening cylinder, and feed pipe to rotate. The ore inside the screening cylinder rotates with it, and simultaneously, the spray system washes the ore, causing mud and small particles adhering to the ore surface to fall into the collection box through the screening cylinder, leaving large, clean ore particles inside. Rotating the U-shaped block tilts the discharge pipe downwards, and the screened ore is discharged from the discharge pipe under gravity. This utility model's ore screening device separates ore by size while simultaneously cleaning it, preventing mud adhering to the ore surface from clogging the screen holes, thereby improving screening efficiency.

[0008] Preferably, the top of both sides of the U-shaped block is provided with a fixed sleeve, and the inner ring of the two fixed sleeves is rotatably connected to the feed pipe and the discharge pipe, respectively. The outer ring of the fixed sleeve is fixedly connected to the U-shaped block, and the inner ring of the fixed sleeve is rotatably connected to the feed pipe and the discharge pipe, respectively, thereby realizing the rotation of the discharge pipe, the screening cylinder and the feed pipe.

[0009] Preferably, a first motor is mounted on a fixed sleeve located on the side of the discharge pipe, and a gear is mounted on the output end of the first motor; multiple toothed grooves are provided on the outer wall of the discharge pipe, and these toothed grooves mesh with the gear; driven by the first motor, the gear drives the toothed grooves to rotate, and the toothed grooves drive the discharge pipe, the screening cylinder, and the feed pipe to rotate. The first motor can be a rotary motor. By providing toothed grooves on the discharge pipe that mesh with the gear, the rotary motor rotates the discharge pipe through the meshing of the gear and the toothed grooves, thereby driving the screening cylinder to rotate.

[0010] Preferably, the outer side wall of the discharge pipe is provided with a plurality of toothed grooves, which are evenly arranged along the outer side wall of the discharge pipe.

[0011] Preferably, the outer end of the guide tube is positioned with its opening facing upwards, and the bottom of the guide tube is fixedly connected to the outer wall of the U-shaped block via a connecting block. The connecting block contains an installation cavity. A telescopic rod is installed within the installation cavity, with its end extending outwards and connected to the water inlet pipe. The water inlet pipe is slidably connected to the guide tube. The telescopic rod supports the water inlet pipe and simultaneously moves it left and right within the screening cylinder.

[0012] Preferably, a plug is provided inside the discharge pipe, which is fixedly connected to the water inlet pipe; as the water inlet pipe moves, the plug can seal the end of the discharge pipe or move to the outside of the discharge pipe. When the screening cylinder rotates, the plug seals the discharge pipe to prevent muddy water inside the screening cylinder from flowing out of the discharge pipe. After the ore in the screening cylinder has been screened, the plug is removed from the discharge pipe to facilitate discharge.

[0013] Specifically, the outer diameter of the block is matched with the inner diameter of the discharge pipe.

[0014] Preferably, the collection box has shielding blocks on both sides along its width, and the screening cylinder is positioned within the space enclosed by the two shielding blocks. By setting the shielding blocks, mud, sand, or small particles of ore flowing from the screening cylinder can be prevented from falling outside the collection box.

[0015] Preferably, the collection box is connected to the inner sidewall of the U-shaped block at both ends along its length. The end of the collection box has a discharge port that penetrates the sidewall of the U-shaped block and is located below the discharge pipe. The discharge port facilitates the discharge of material from the collection box. By positioning the discharge port below the discharge pipe, the material in the collection box can be discharged simultaneously when the discharge pipe tilts downwards to discharge material.

[0016] Specifically, the base has two connecting plates at its top, and the bottom of the U-shaped block is rotatably connected to the two connecting plates; the base also has a second motor, the output of which is connected to the U-shaped block. The second motor can be a servo motor, which controls the left and right rotation of the U-shaped block.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the ore screening device of this utility model not only separates the ore by size but also cleans the ore, avoiding the clogging of the screen holes by the mud adhering to the surface of the ore, thereby improving the screening efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the ore screening device of this utility model;

[0019] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure;

[0020] Figure 3 yes Figure 1 Rear view.

[0021] In the figure

[0022] 1-Base; 2-U-shaped block; 3-Fixing sleeve; 4-Infeed pipe; 5-Outfeed pipe; 6-Screening cylinder; 7-Blocking block; 8-Collection box; 9-Outlet; 10-Connecting block; 11-Guide pipe; 12-Installation cavity; 13-Telescopic rod; 14-Water inlet pipe; 15-Blocking block; 16-Installation plate; 17-First motor; 18-Groove; 19-Gear; 20-Connecting plate; 21-Second motor. Detailed Implementation

[0023] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0024] like Figure 1 As shown, the ore screening device provided in this embodiment includes a base 1 and a U-shaped block 2. Two connecting plates 20 are provided on the top of the base 1, spaced apart. The bottom of the U-shaped block 2 is engaged between the two connecting plates 20, and the U-shaped block 2 is rotatably connected to the two connecting plates 20. A second motor 21, which is a servo motor, is fixedly installed on the side of the connecting plate 20. The output end of the second motor 21 is fixedly installed at the center of the side of the movable block 2, and the tilting of the U-shaped block 2 is controlled by starting the second motor 21. Fixed sleeves 3 are fixedly installed on the top of both sides of the U-shaped block 2. A feed pipe 4 and a discharge pipe 5 are movably installed inside the two fixed sleeves 3, respectively. A screening cylinder 6 is fixedly installed on the corresponding side of the feed pipe 4 and the discharge pipe 5, and the screening cylinder 6 is connected to the feed pipe 4 and the discharge pipe 5. A guide pipe 11 is provided on the outer end of the feed pipe 4. One end of the guide pipe 11 is inserted into the feed pipe 4, and the opening of the other end faces upwards. The bottom of the guide pipe 11 is fixedly connected to the outer wall of the U-shaped block 2 via a connecting block 10. An installation cavity 12 is provided on the side of the connecting block 10, and a telescopic rod 13 is fixedly installed inside the installation cavity 12. A water inlet pipe 14 is fixedly installed at the output end of the telescopic rod 13. One end of the water inlet pipe 14 extends through the guide pipe 11 into the interior of the screening cylinder 6, and a spray system is provided on the water inlet pipe 14 extending into the screening cylinder 6. Figure 2 As shown, a block 15 is fixedly installed at one end of the water inlet pipe 14 that extends into the screening cylinder 6, corresponding to the position of the discharge pipe 5. The diameter of the block 15 is adapted to the inner diameter of the discharge pipe 5. When the water inlet pipe 14 sprays, the block 15 is inside the discharge pipe 5, allowing the ore in the screening cylinder 6 to be thoroughly cleaned. After the ore is cleaned, the telescopic rod 13 is activated, which moves the water inlet pipe 14 and the block 15, causing the block 15 to move out of the discharge pipe 5.

[0025] like Figure 3As shown, the outer wall of the discharge pipe 5 has equidistant circumferential grooves 18. A mounting plate 16 is fixedly installed on the side of the fixed sleeve 3, and a first motor 17, a rotary motor, is fixedly installed on the upper side of the mounting plate 16. A gear 19 is fixedly installed at the output end of the first motor 17, and the gear 19 meshes with the grooves 18. When the first motor 17 is started, it drives the gear 19 to rotate, which in turn drives the grooves 18 to rotate, causing the discharge pipe 5, the screening cylinder 6, and the feed pipe 4 to rotate. A collection box 8, a U-shaped box with an open top, is located below the screening cylinder 6. Two blocking blocks 7, arc-shaped, are provided on both sides of the collection box 8 along its width. The screening cylinder 6 is positioned within the space enclosed by the two blocking blocks 7. The two ends of the collection box 8 along the length direction are connected to the inner side wall of the U-shaped block 2 respectively. The end of the collection box 8 is provided with a discharge port 9, which penetrates the side wall of the U-shaped block 2 and is located below the discharge pipe 5.

[0026] Working principle of the ore screening device in this embodiment:

[0027] When the ore screening device is in use, the ore enters the screening cylinder 6 through the guide pipe 11. The first motor 17 is started, causing the discharge pipe 5 to rotate, which in turn drives the screening cylinder 6 and the feed pipe 4 to rotate. An external water supply device is connected to the outer end of the water inlet pipe 14. Activating the external water supply device and the spray system cleans the ore. At this time, the block 15 is located inside the discharge pipe 5, ensuring thorough cleaning of the ore. As the screening cylinder 6 rotates, the ore tumbles inside, separating small particles from large pieces, which fall into the collection box 8. Simultaneously, the spray system causes the mud and sand adhering to the ore surface to fall through the screening cylinder 6 into the collection box 8, resulting in large, clean ore particles within the screening cylinder 6. After the ore is cleaned, the telescopic rod 13 is activated, moving the water inlet pipe 14 and the block 15, which then moves out of the discharge pipe 5. Start the second motor 21 to tilt the U-shaped block 2. The U-shaped block 2 drives the screening cylinder 6 to tilt. Clean large pieces of ore move out through the discharge pipe 5, while small particles of ore and mud in the collection box 8 are discharged through the discharge port 9.

[0028] The above embodiments should be understood as being used only to illustrate the utility model more clearly, and not to limit the scope of the utility model. After reading this utility model, any modifications of the embodiments by those skilled in the art in various equivalent forms fall within the scope defined by the appended claims.

Claims

1. A mineral screening device comprising a base (1), a feed tube (4), a discharge tube (5), a screening drum (6) communicating the feed tube (4) and the discharge tube (5), and a collection box (8) disposed below the screening drum (6), the collection box (8) being open at the top; characterized in that: It also includes a guide tube (11) and a U-shaped block (2) set below the collection box (8). The bottom of the U-shaped block (2) is rotatably connected to the base (1), and the tops of both sides of the U-shaped block (2) are rotatably connected to the feed pipe (4) and the discharge pipe (5) respectively. The bottom of the guide tube (11) is fixedly connected to the U-shaped block (2), and one end of the guide tube (11) is inserted into the feed tube (4); The guide pipe (11) is provided with a water inlet pipe (14), one end of which extends outward from the guide pipe (11) and the other end extends into the screening cylinder (6), and a spray system is provided on the water inlet pipe (14) extending into the screening cylinder (6).

2. The ore screening device according to claim 1, characterized in that: The top of both sides of the U-shaped block (2) is provided with a fixed sleeve (3), and the inner ring of the two fixed sleeves (3) is rotatably connected to the feed pipe (4) and the discharge pipe (5) respectively.

3. The ore screening device according to claim 2, characterized in that: A first motor (17) is provided on the fixed sleeve (3) located on the side of the discharge pipe (5), and a gear (19) is provided on the output end of the first motor (17); multiple tooth grooves (18) are provided on the outer side wall of the discharge pipe (5), and the tooth grooves (18) mesh with the gear (19); under the drive of the first motor (17), the gear (19) drives the tooth grooves (18) to rotate, and the tooth grooves (18) drive the discharge pipe (5), the screening cylinder (6) and the feed pipe (4) to rotate.

4. The ore screening device according to claim 3, characterized in that: The outer wall of the discharge pipe (5) is provided with a plurality of grooves (18) in the circumferential direction, and the plurality of grooves (18) are evenly arranged along the outer wall of the discharge pipe (5).

5. The ore screening device according to claim 1, characterized in that: The outer end of the guide tube (11) is set with the opening facing upward. The bottom of the guide tube (11) is fixedly connected to the outer wall of the U-shaped block (2) through the connecting block (10). The connecting block (10) is provided with an installation cavity (12). The installation cavity (12) is provided with a telescopic rod (13). The end of the telescopic rod (13) extends outward and is connected to the water inlet pipe (14). The water inlet pipe (14) is slidably connected to the guide tube (11).

6. The ore screening device according to claim 5, characterized in that: The discharge pipe (5) is provided with a block (15), which is fixedly connected to the water inlet pipe (14); as the water inlet pipe (14) moves, the block (15) can seal the end of the discharge pipe (5) or move to the outside of the discharge pipe (5).

7. The ore screening device according to claim 6, characterized in that: The outer diameter of the block (15) matches the inner diameter of the discharge pipe (5).

8. The ore screening device according to claim 1, characterized in that: The collection box (8) is provided with blocking blocks (7) on both sides along the width direction, and the screening cylinder (6) is set in the space surrounded by the two blocking blocks (7).

9. The ore screening device according to claim 8, characterized in that: The collection box (8) is connected to the inner sidewall of the U-shaped block (2) at both ends along its length. The end of the collection box (8) is provided with a discharge port (9), which penetrates the sidewall of the U-shaped block (2) and is located below the discharge pipe (5).

10. The ore screening device according to any one of claims 1 to 9, characterized in that: The base (1) has two connecting plates (20) on top, and the bottom of the U-shaped block (2) is rotatably connected to the two connecting plates (20); the base (1) has a second motor (21), and the output end of the second motor (21) is connected to the U-shaped block (2).

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