Magnetite powder composite removing mechanism for magnetic separator roller

Abstract

The utility model discloses a magnetite powder composite cleaning mechanism for a magnetic separator roller, which comprises a magnetic separator body, a cleaning component is arranged on the magnetic separator body, the cleaning component comprises a magnetic suction mechanism and a spraying mechanism, the spraying mechanism is arranged below the magnetic suction mechanism, and the magnetic suction mechanism is arranged on the magnetic separator body. The magnetic attraction mechanism comprises a pipe body and a magnet arranged on the inner side of the pipe body, a scraping mechanism is arranged on the side edge of the magnetic attraction mechanism and comprises a reciprocating lead screw, a supporting arc plate and a scraping plate, and the reciprocating lead screw is sleeved with the supporting arc plate; the spraying and removing mechanism and the magnetic attraction mechanism are additionally arranged on the magnetic separator, the spraying and removing mechanism can work to spray high-pressure water flow to the roller to remove magnetite powder adhered to the roller, primary cleaning of the roller is achieved, a strong magnetic field is generated through the magnetic attraction mechanism, and the magnetite powder adhered to the roller is separated and moved to the magnetic attraction mechanism. Secondary cleaning of the roller is achieved, and cleaning of the roller is effectively and comprehensively achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic separator cleaning, in particular to a magnetite powder composite cleaning mechanism for a magnetic separator drum. Background Art

[0002] In the mining industry, magnetic separators can separate magnetic minerals from low-grade ores, thereby improving the ore grade. For example, during the beneficiation of iron ore, magnetic separators can effectively remove impurities such as silicon, aluminum, and other non-magnetic substances, significantly increasing the iron content of the ore. The high-grade iron ore after magnetic separation can be directly used in steel production, improving both quality and output.

[0003] However, if the magnetite fines on the drum are not effectively removed during operation, the remaining fines will continue to be absorbed during subsequent beneficiation processes, affecting the effective contact between the newly introduced slurry and the drum, and reducing the magnetic separator's ability to separate magnetic minerals. Unremoved magnetite fines may re-incorporate into the separated ore during drum rotation, reducing the purity of the magnetic material in the concentrate and affecting the quality of the final product.

[0004] To address this issue, existing magnetic separators are typically equipped with high-pressure nozzles. The water flow from the nozzles creates an impact force, flushing away the mineral powder. For a more specific example, see Chinese Patent Publication No. CN104741222A. This magnetic separator comprises a magnetic system, a cylinder, a main shaft, and bearings. The magnetic system consists of a magnetic block, a yoke, and a connecting plate. The magnetic block is mounted on the yoke, which is connected to the main shaft via the connecting plate. The connecting plate is mounted on the main shaft via a fixed mount. Bearings are mounted at both ends of the main shaft, supporting the cylinder body. The connecting plate is characterized by being made of non-magnetic stainless steel with a thickness of 6-8 mm. The connecting plate is provided with a stainless steel rib with a thickness of 6-8 mm. The use of a non-magnetic stainless steel connecting plate between the magnetic system and the main shaft isolates the magnetic block from the main shaft, preventing the magnetic field from being introduced into the main shaft. This prevents the main shaft bearing from becoming magnetized, preventing iron powder and other debris from being attracted to the bearings, reducing bearing friction and increasing bearing service life.

[0005] Although high-pressure water flow can wash away the adhered mineral powder, the actual cleaning effect shows that it cannot effectively treat the drum comprehensively, that is, some mineral powder will still adhere to the drum, reducing the separation effect of the magnetic separator on magnetic minerals and even affecting the quality of the final product. Utility Model Content

[0006] The utility model aims to provide a composite cleaning mechanism for magnetite powder on a magnetic separator drum, aiming to improve the problem that the magnetic separator cannot comprehensively and effectively remove the mineral powder adhered to the drum.

[0007] The utility model is implemented as follows: a composite cleaning mechanism for magnetite powder for a magnetic separator drum, comprising a magnetic separator body, a cleaning component arranged on the magnetic separator body, the cleaning component comprising a magnetic attraction mechanism and a spraying mechanism, the spraying mechanism being arranged below the magnetic attraction mechanism, the magnetic attraction mechanism comprising a tube body and a magnet arranged inside the tube body, a scraping mechanism being arranged on the side of the magnetic attraction mechanism, the scraping mechanism comprising a reciprocating screw, a supporting arc plate and a scraper, the supporting arc plate being sleeved on the reciprocating screw, the scraper being detachably mounted on the supporting arc plate and in contact with the tube body.

[0008] Preferably, the spraying mechanism includes a main pipe and multiple nozzles. The main pipe is provided with multiple clamps. The clamps support the main pipe and are installed on the magnetic separator body and are connected to the liquid pump. The multiple nozzles are all arranged on the main pipe and are evenly distributed along the length of the main pipe.

[0009] Preferably, end covers are provided at the ends of the tube body, and end shafts are fixedly provided on the sides of the two end covers away from each other. A sprocket is provided at the end of the end shaft, and the sprocket is connected to the sprocket of the magnetic separator body through a chain.

[0010] Preferably, the magnet is arranged on the inner side of the tube body and installed on the support tube. A connecting rod is fixedly provided at the end of the support tube. The connecting rod is connected through the end cover and the end shaft through a bearing.

[0011] Preferably, a connecting plate is sleeved on the end of the protruding end shaft of the connecting rod, and the free end of the connecting plate is connected to the magnetic separator body through a bolt.

[0012] Preferably, a sprocket is provided at the end of the reciprocating screw, and a sprocket is also provided on the end shaft, and the two sprockets facing the reciprocating screw and the end shaft are connected by a chain.

[0013] Preferably, an arc groove is provided on the inner side surface of the supporting arc plate, the scraper is also provided with an arc structure and is installed at the arc groove, a connecting groove is provided on the scraper, and the bolts provided at the connecting groove pass through the supporting arc plate.

[0014] Preferably, a scraping blade is provided on the inner side of the scraper, and the scraping blade protrudes out of the supporting arc plate and contacts with the tube body.

[0015] Preferably, a fixed arc plate is fixedly provided on the side of the supporting arc plate, and a clamping arc plate is detachably provided on the side of the fixed arc plate. The clamping arc plate and the fixed arc plate are sleeved on the reciprocating screw, and mounting holes are provided on the inner side surfaces. The connecting device is connected and provided at the mounting hole through a bearing.

[0016] Preferably, the connecting device includes a guide plate, a top column and a connecting shaft, the guide plate and the connecting shaft are respectively arranged at both ends of the top column, the connecting shaft and the top column are located in the mounting hole, and the guide plate extends into the reciprocating screw.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The utility model is equipped with a spraying mechanism and a magnetic attraction mechanism on the magnetic separator. The spraying mechanism can work to spray high-pressure water onto the drum to remove the magnetite powder adhering to the drum, thereby realizing the primary cleaning of the drum. Then, the magnetic attraction mechanism generates a strong magnetic field to separate the magnetite powder adhering to the drum and move it to the magnetic attraction mechanism, thereby realizing the secondary cleaning of the drum, effectively and comprehensively realizing the cleaning of the drum.

[0019] 2. The utility model is provided with a scraping mechanism, which can control the support arc plate to move back and forth along the length direction of the tube body under the action of the reciprocating screw. At the same time, the scraper can be detachably mounted on the support arc plate and is in close contact with the tube body, so that the surface of the tube body can be cleaned during the reciprocating movement of the support arc plate.

[0020] 3. The utility model is provided with sprockets at the ends of the tube body and the reciprocating screw, and the adjacent sprockets are connected by chains. The magnetic attraction mechanism and the scraping mechanism can be controlled to work under the action of the magnetic separator motor, avoiding the increase in the cost of the device due to the addition of driving equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of the utility model as a whole;

[0022] Figure 2 It is a structural diagram of the magnetic separator body of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the scraping mechanism, magnetic suction mechanism, and spraying mechanism of the utility model;

[0024] Figure 4 It is a structural diagram of the spraying mechanism of the utility model;

[0025] Figure 5 This is a structural diagram of the magnetic attraction mechanism of the utility model;

[0026] Figure 6 This is a partial structural diagram of the magnetic attraction mechanism of the utility model;

[0027] Figure 7 It is a structural diagram of the scraping mechanism of the utility model;

[0028] Figure 8 This is a structural diagram of the support arc plate, connecting device and scraper of the utility model;

[0029] Figure 9 This is a schematic structural diagram of the supporting arc plate of the utility model;

[0030] Figure 10It is a structural diagram of the connecting device of the utility model;

[0031] Figure 11 It is a structural schematic diagram of the scraper of the utility model.

[0032] In the figure: 1. Magnetic separator body; 11. Frame; 12. First hopper; 13. Drum; 14. Second hopper; 2. Scraping mechanism; 21. Reciprocating screw; 22. Support arc plate; 221. Arc groove; 222. Fixed arc plate; 223. Clamping arc plate; 224. Mounting hole; 23. Connecting device; 231. Guide plate; 232. Top column; 233. Connecting shaft; 24. Scraper; 241. Connecting groove; 242. Scraping blade; 3. Magnetic attraction mechanism; 31. End cover; 32. End shaft; 33. Connecting rod; 34. Support pipe; 35. Magnet; 36. Connecting plate; 37. Pipe body; 4. Spraying mechanism; 41. Main pipe; 42. Spray head; 43. Hoop. DETAILED DESCRIPTION

[0033] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0034] The following is a further description with reference to the accompanying drawings and specific embodiments:

[0035] Example 1

[0036] In order to effectively and comprehensively clean the magnetite powder adhering to the magnetic separator drum 13, this embodiment provides a new magnetic separator, which is obtained by adding a cleaning component to the existing magnetic separator. The cleaning component can effectively and comprehensively clean the powder adhering to the drum 13, thereby avoiding reducing the separation effect of the magnetic separator on magnetic minerals.

[0037] like Figure 1 、 Figure 2As shown, before introducing the cleaning components, here is a brief introduction to the existing magnetic separator, which includes a magnet system, a drum 13 (rotating drum) device, a tank body, a transmission device, a discharge system, etc. The tank body is mounted on the frame 11 and is provided with multiple silos, which can be specifically divided into a first silo 12 and a second silo 14, which are respectively the ore feeding area, the ore processing area, and the tailings area. The drum 13 is set on the tank body and includes a drum shell and an internal support structure. The drum shell is generally made of materials such as stainless steel and has a certain strength and wear resistance. It can protect the internal magnet system and is also the part that comes into direct contact with the material. The internal support structure is used to support the magnet and ensure the structural stability of the drum. It is usually composed of a number of components such as brackets and shafts. These components need to have sufficient strength and rigidity to withstand the weight of the magnet and the various forces during the magnetic separation process. The magnet system can be configured as a permanent magnet or an electromagnet. The transmission system, including components such as a motor, reducer, coupling, pulley, or sprocket, powers the magnetic separator's drum and other moving parts. Its power and speed are selected based on the separator's specifications and operating requirements. The discharge system is divided into outlets for magnetic and non-magnetic materials. Hereinafter, the existing magnetic separator will be collectively referred to as the magnetic separator body 1.

[0038] like Figure 3 As shown, the cleaning component is arranged on the side of the drum 13 and is connected to the magnetic separator body 1. Specifically, the cleaning component includes a magnetic attraction mechanism 3 and a spraying mechanism 4. The spraying mechanism 4 is arranged below the magnetic attraction mechanism 3 and is connected to the liquid pump. Therefore, under the action of the liquid pump, the cleaning liquid can be transported to the side of the drum 13, and then the magnetite powder and the like adhering to the drum 13 can be removed under the action of the high-pressure liquid flow. The magnetic attraction mechanism 3 can form a magnetic field, and the magnetic force of this magnetic field on the objects moving near the magnetic attraction mechanism 3 is greater than the magnetic force generated by the drum 13 on them. Therefore, under the action of the magnetic attraction mechanism 3, the magnetite powder adhering to the outer side of the drum 13 can be separated from the drum 13 and adhered to the magnetic attraction mechanism 3, thereby achieving the cleaning of the magnetite powder. Therefore, with the cooperation of the spraying mechanism 4 and the magnetic attraction mechanism 3, the magnetite powder adhering to the drum 13 can be effectively and comprehensively removed.

[0039] like Figure 4As shown, the spraying mechanism 4 specifically includes a main pipe 41 and multiple nozzles 42. The main pipe 41 is positioned along the length of the drum 13 and is equipped with multiple clamps 43. The clamps 43 ensure that the main pipe 41 is stably mounted on the magnetic separator body 1. Furthermore, the main pipe 41 is connected to a liquid pump via a pipeline, which in turn is connected to a cleaning fluid source. The cleaning fluid is then delivered to the main pipe 41 by the liquid pump. Multiple nozzles 42 are interconnected and evenly distributed along the length of the main pipe 41. The spray direction of the nozzles 42 forms a certain angle with the drum surface, typically between 30° and 60°. This creates an impact force on the water flow, effectively flushing the mineral powder away. The aperture and pressure of the nozzles 42 are selected based on the degree of mineral powder adhesion and the drum size. Typically, the aperture ranges from a few millimeters to over ten millimeters, and the pressure ranges from a few MPa to tens of MPa.

[0040] like Figure 5 As shown, specifically, the magnetic attraction mechanism 3 includes a tube body 37 and a magnet 35 arranged on the inner side of the tube body 37. End covers 31 are detachably provided at both ends of the tube body 37. For example, the end covers 31 are connected to the tube body 37 by bolts, or the end covers 31 are connected to the tube body 37 by a threaded structure. An end shaft 32 is fixedly provided on the side away from each other of the two end covers 31. The end shaft 32 is mounted on a support frame through a bearing seat. The support frame is connected to the magnetic separator body 1. Therefore, the tube body 37 is stably mounted on the magnetic separator body 1. A sprocket is provided at the end of the end shaft 32, and another sprocket is provided on the rotating shaft of the drum 13. The two sprockets are connected by a chain. Therefore, when the motor works to control the drum 13 to rotate, the tube body 37 will also rotate. The magnet 35 is arranged on the side of the tube 37 adjacent to the roller 13. Therefore, the magnetite powder adsorbed on the roller 13 can be transferred to the tube 37 and the magnetite powder and the tube 37 can move synchronously, which facilitates the effective removal of the magnetite powder adhering to the roller 13.

[0041] like Figure 6 As shown, the magnet 35 is mounted on the support tube 34. A connecting rod 33 is fixedly provided at the end of the support tube 34. The connecting rod 33 is connected through a bearing and passes through the end cover 31 and the end shaft 32. That is, when the tube 37 rotates, the magnet 35 can be stably placed relative to the magnetic separator body 1. A connecting plate 36 is sleeved on the end of the connecting rod 33 protruding from the end shaft 32. The free end of the connecting plate 36 is connected to the magnetic separator body 1 by a bolt. Therefore, the magnet 35 can be stably installed in the tube 37 and the position of the magnet 35 relative to the tube 37 can be adjusted according to needs.

[0042] Example 2

[0043] like Figure 3As shown, based on Example 1, in order to remove the magnetite powder adhering to the tube body 37, a scraping mechanism 2 is provided on the side of the magnetic attraction mechanism 3 away from the drum 13. The scraping mechanism 2 includes a reciprocating screw 21, a supporting arc plate 22, and a scraper 24. The reciprocating screw 21 is mounted on the support frame through a bearing seat, and a sprocket is provided at the end. At the same time, a sprocket is also provided on the end shaft 32. The reciprocating screw 21 and the two sprockets facing the end shaft 32 are connected by a chain. Therefore, when the motor controls the rotation of the drum 13, the reciprocating screw 21 rotates accordingly.

[0044] like Figure 8 、 Figure 9 、 Figure 10 As shown, in order to control the support arc plate 22 to move back and forth along the length direction of the tube body 37 under the action of the reciprocating screw 21, a fixed arc plate 222 is fixedly provided on the side of the support arc plate 22, and a clamping arc plate 223 is detachably provided on the side of the fixed arc plate 222 connected by bolts. The clamping arc plate 223 and the fixed arc plate 222 are sleeved on the reciprocating screw 21, and the size of the space formed by the clamping arc plate 223 and the fixed arc plate 222 is larger than the size of the reciprocating screw 21, and the inner side surfaces are provided with mounting holes 224. The connecting device 23 includes a guide plate 231, a top column 232 and a connecting shaft 233. The guide plate 231 and the connecting shaft 233 are respectively arranged at both ends of the top column 232. The connecting shaft 233 is inserted into the mounting hole 224 through a bearing connection, and the top column 232 is located in the mounting hole 224. The guide plate 231 extends into the guide groove of the reciprocating screw 21. Therefore, when the reciprocating screw 21 rotates, the support arc plate 22 can be controlled to move back and forth.

[0045] like Figure 9 、 Figure 11 As shown, in order to achieve the cleaning of the tube body 37 when the support arc plate 22 reciprocates, an arc-shaped groove 221 is provided on the inner side surface of the support arc plate 22, and the scraper 24 is also provided with an arc-shaped structure and is installed at the arc-shaped groove 221. The inner side of the scraper 24 is provided with a scraping blade 242, and the scraping blade 242 protrudes from the support arc plate 22 and contacts the tube body 37. Therefore, when the support arc plate 22 moves, the scraper 24 scrapes off the magnetite powder adhered to the surface of the tube body 37, so that the magnetite powder is separated from the tube body 37.

[0046] like Figure 8 、 Figure 11 As shown, in order to enable the scraper 24 to be stably installed relative to the support arc plate 22, a connecting groove 241 is provided on the scraper 24, and a bolt provided at the connecting groove 241 is provided through the support arc plate 22. This arrangement can also facilitate the removal of the scraper 24 for replacement as needed.

[0047] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A magnetite powder composite cleaning mechanism for a magnetic separator drum, comprising a magnetic separator body (1), characterized in that: A cleaning assembly is provided on the magnetic separator body (1), the cleaning assembly comprising a magnetic attraction mechanism (3) and a spraying mechanism (4), the spraying mechanism (4) being provided below the magnetic attraction mechanism (3), the magnetic attraction mechanism (3) comprising a tube body (37) and a magnet (35) provided inside the tube body (37), a scraping mechanism (2) being provided on the side of the magnetic attraction mechanism (3), the scraping mechanism (2) comprising a reciprocating screw (21), a supporting arc plate (22) and a scraping plate (24), the supporting arc plate (22) being sleeved on the reciprocating screw (21), the scraping plate (24) being detachably mounted on the supporting arc plate (22) and in contact with the tube body (37).

2. The magnetite powder composite cleaning mechanism for a magnetic separator drum according to claim 1, characterized in that: The spraying mechanism (4) comprises a main pipe (41) and a plurality of spray heads (42). The main pipe (41) is provided with a plurality of clamps (43). The clamps (43) support the main pipe (41) and are installed on the magnetic separator body (1) and are connected to the liquid pump. The plurality of spray heads (42) are all arranged on the main pipe (41) and are evenly distributed along the length direction of the main pipe (41).

3. The magnetite powder composite cleaning mechanism for a magnetic separator drum according to claim 1, characterized in that: An end cover (31) is provided at each end of the tube body (37), and an end shaft (32) is fixedly provided on the side of the two end covers (31) away from each other. A sprocket is provided at the end of the end shaft (32), and the sprocket is connected to the sprocket of the magnetic separator body (1) through a chain.

4. A magnetite powder composite cleaning mechanism for a magnetic separator drum according to claim 3, characterized in that: The magnet (35) is arranged on the inner side of the tube body (37) and is installed on the support tube (34). A connecting rod (33) is fixedly arranged at the end of the support tube (34). The connecting rod (33) is connected through the end cover (31) and the end shaft (32) through a bearing.

5. The magnetite powder composite cleaning mechanism for a magnetic separator drum according to claim 4, characterized in that: A connecting plate (36) is sleeved on the end of the protruding end shaft (32) of the connecting rod (33), and the free end of the connecting plate (36) is connected to the magnetic separator body (1) through a bolt.

6. The magnetite powder composite cleaning mechanism for a magnetic separator drum according to claim 3, characterized in that: A sprocket is provided at the end of the reciprocating screw (21), and a sprocket is also provided on the end shaft (32). The two sprockets facing the reciprocating screw (21) and the end shaft (32) are connected via a chain.

7. The magnetite powder composite cleaning mechanism for a magnetic separator drum according to claim 1, characterized in that: An arc-shaped groove (221) is provided on the inner side surface of the supporting arc plate (22); the scraper (24) is also provided with an arc-shaped structure and is installed at the arc-shaped groove (221); a connecting groove (241) is provided on the scraper (24); and a bolt provided through the connecting groove (241) passes through the supporting arc plate (22).

8. The magnetite powder composite cleaning mechanism for a magnetic separator drum according to claim 7, characterized in that: A scraping blade (242) is provided on the inner side of the scraper (24), and the scraping blade (242) protrudes from the supporting arc plate (22) and contacts the tube body (37).

9. The magnetite powder composite cleaning mechanism for a magnetic separator drum according to claim 1, characterized in that: A fixed arc plate (222) is fixedly provided on the side of the supporting arc plate (22), and a clamping arc plate (223) is detachably provided on the side of the fixed arc plate (222). The clamping arc plate (223) and the fixed arc plate (222) are sleeved on the reciprocating screw (21), and both inner sides are provided with mounting holes (224). The connecting device (23) is connected and provided at the mounting hole (224) through a bearing.

10. A magnetite powder composite cleaning mechanism for a magnetic separator drum according to claim 9, characterized in that: The connecting device (23) comprises a guide plate (231), a top column (232) and a connecting shaft (233); the guide plate (231) and the connecting shaft (233) are respectively arranged at two ends of the top column (232); the connecting shaft (233) and the top column (232) are located in the mounting hole (224); and the guide plate (231) extends into the reciprocating screw (21).

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