Cylindrical external filter type vacuum permanent magnet filter device

Abstract

This utility model relates to the field of mineral processing machinery technology and discloses a cylindrical external filtration vacuum permanent magnet filter device, including a main body and a cylinder mounted on the upper side of the main body. The surface of the cylinder is covered with filter cloth. A mounting frame is fixedly connected to the upper surface of the main body. A blower pipe is rotatably connected between two vertical plates on the front side of the mounting frame. The blower pipe has a ventilation chamber inside and an air outlet groove on its surface. Through the cooperation between the fan, the diverter pipe, the hose, and the blower pipe, the device works in conjunction with the scraper. By backflushing, the stickiness of the filter cake is first broken, and then the scraper follows to scrape it off, which further improves the overall unloading efficiency of the device. It effectively utilizes the impact force, buoyancy, and shear force of the airflow to break the adhesion between the filter cake and the filter cloth, causing the filter cake to loosen and bulge, significantly improving the unloading efficiency and effectively solving the problem of low unloading efficiency of the scraper.

Description

Technical Field

[0001] This utility model relates to the field of mineral processing machinery technology, specifically to a cylindrical external filter type vacuum permanent magnet filter device. Background Technology

[0002] As a traditional filtration device, the permanent magnet cylinder vacuum filter is widely used by many mineral processing plants due to its simple structure, convenient daily maintenance, and strong targeting of strongly magnetic minerals. In recent years, with the large-scale development of many mineral processing plants, the traditional permanent magnet cylinder vacuum filter has been abandoned by some large mineral processing plants due to its small single-unit processing capacity and the difficulty of scaling up. However, for some small mineral processing plants, the permanent magnet cylinder vacuum filter is still a better choice.

[0003] However, many existing cylindrical external vacuum permanent magnet filter devices use scraper unloading. Their working mode is based on unloading after the filter cake forms a relatively thick filter residue. However, this method has significant drawbacks. When the filter cake is thick and hard, such as when processing iron concentrate filter cake formed from high-concentration slurry, the scraper needs to apply a lot of pressure to scrape it off. Even so, it is still difficult to completely remove the part that is tightly attached to the filter cloth. These residual filter residues will clog the pores of the filter cloth, resulting in a decrease in filtration efficiency and even requiring frequent shutdowns for cleaning. At the same time, in order to scrape off the thick filter cake, the high-intensity friction between the scraper and the filter cloth is aggravated, which causes severe wear of the filter cloth. This results in poor unloading efficiency of the filter cake in actual use and poor practicality. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a cylindrical external filter type vacuum permanent magnet filter device to solve the problem of poor unloading efficiency in some existing cylindrical external filter type vacuum permanent magnet filter devices.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cylindrical external filter type vacuum permanent magnet filter device, comprising a main body and a cylinder mounted on the upper side of the main body. A filter cloth is provided on the surface of the cylinder. A mounting frame is fixedly connected to the upper surface of the main body. A blowing pipe is rotatably connected between two vertical plates on the front side of the mounting frame. A ventilation chamber is formed inside the blowing pipe, and an air outlet groove is formed on the surface of the blowing pipe, communicating with the ventilation chamber. A fan is fixedly mounted on the upper surface of the mounting frame. A diverter pipe is fixedly connected to the output end of the fan. The diverter pipe extends through the lower surface of the upper horizontal plate of the mounting frame. Flexible hoses are connected to both sides of the diverter pipe. Both flexible hoses are fixedly connected to the surface of the blowing pipe and communicate with it. A motor is fixedly connected to the left side surface of the mounting frame. The output shaft of the motor rotatably penetrates into the interior of the mounting frame. The output shaft of the motor is fixedly connected to the left end of the blowing pipe via a coupling. An installation through groove is formed on the upper surface of the mounting frame, and a compression component is provided inside the installation through groove.

[0006] Preferably, the extrusion assembly includes a mounting plate, which is fixedly connected to the inside of the mounting slot. A guide rod is fixedly connected to the upper surface of the mounting plate, and an L-shaped connecting plate is slidably sleeved on the outside of the guide rod. The L-shaped connecting plate is in contact with the mounting plate. Two sliding slots are formed inside the mounting plate, and fixed plates are movably connected inside each of the two sliding slots. Both fixed plates are fixedly connected to the cross plate of the L-shaped connecting plate, and an extrusion roller is provided between the two fixed plates.

[0007] Preferably, a first spring is fixedly connected between the lower surface of the L-shaped connecting plate and the upper surface of the mounting plate, and the first spring is movably sleeved on the outside of the guide rod.

[0008] Preferably, mounting rings are rotatably embedded on the adjacent side surfaces of the two fixing plates, and the mating grooves on the surface of the mounting rings are adapted to the shafts at both ends of the extrusion roller.

[0009] Preferably, the vertical plate surface of the L-shaped connecting plate is provided with a guide groove, and a disassembly component is provided inside the guide groove.

[0010] Preferably, the disassembly assembly includes a bidirectional threaded rod, which is rotatably connected inside the guide groove. Both fixing plates are slidably connected inside the guide groove. The two fixing plates are respectively threaded onto two opposite threads of the bidirectional threaded rod. The left end of the bidirectional threaded rod rotatably passes through the left side surface of the L-shaped connecting plate.

[0011] Preferably, a knob is provided on the outer left end of the bidirectional threaded rod, and a limiting chamber is formed inside the knob. The bidirectional threaded rod is slidably connected inside the limiting chamber, and a second spring is fixedly connected between the bidirectional threaded rod and the inner wall of the limiting chamber.

[0012] Preferably, the knob has a locking groove extending out of the right side surface, and the L-shaped connecting plate has a locking rod on the left side surface, the locking rod and the locking groove being compatible.

[0013] Compared with the prior art, this utility model provides a cylindrical external filter type vacuum permanent magnet filter device, which has the following beneficial effects:

[0014] 1. This cylindrical external vacuum permanent magnet filter device, through the cooperation of structures such as the fan, diversion pipe, hose and blowing pipe, achieves cooperation with the scraper. By backflushing, the stickiness of the filter cake is first broken, and then the scraper follows to scrape it off, which further improves the overall unloading efficiency of the device. It effectively utilizes the impact force, buoyancy and shear force of the airflow to break the adhesion between the filter cake and the filter cloth, making the filter cake loose and bulging, significantly improving the unloading efficiency and effectively solving the problem of low unloading efficiency of the scraper.

[0015] 2. This cylindrical external filter vacuum permanent magnet filter device further improves the dewatering efficiency of the filter cake through the setting of structures such as the extrusion roller, guide rod and first spring. At the same time, the cooperation between structures such as the bidirectional threaded rod and the fixing plate facilitates the cleaning and maintenance of the extrusion roller. Subsequently, the cooperation of structures such as the knob, locking rod and second spring ensures the fixing effect of the extrusion roller. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the cylindrical external filter type vacuum permanent magnet filter device of this utility model;

[0017] Figure 2 This is a cross-sectional view of the air blower of this utility model.

[0018] Figure 3 This is a cross-sectional view of the mounting bracket of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the fixing plate of this utility model;

[0020] Figure 5 This is a cross-sectional view of the knob of this utility model.

[0021] In the diagram: 1. Main body; 2. Cylinder; 3. Mounting bracket; 4. Air duct; 5. Ventilation chamber; 6. Air outlet slot; 7. Fan; 8. Diverter pipe; 9. Hose; 10. Motor; 11. Mounting slot; 12. Mounting plate; 13. Guide rod; 14. L-shaped connecting plate; 15. Sliding slot; 16. Fixing plate; 17. Extrusion roller; 18. First spring; 19. Guide slot; 20. Bidirectional threaded rod; 21. Knob; 22. Limiting chamber; 23. Second spring; 24. Locking slot; 25. Locking rod; 26. Mounting ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-5This utility model provides a technical solution: a cylindrical external filter type vacuum permanent magnet filter device, including a main body 1 and a cylindrical body 2 installed on the upper side of the main body 1. The surface of the cylindrical body 2 is provided with a filter cloth. A mounting frame 3 is fixedly connected to the upper surface of the main body 1. A blowing pipe 4 is rotatably connected between two vertical plates on the front side of the mounting frame 3. A ventilation chamber 5 is opened inside the blowing pipe 4. An air outlet groove 6 is opened on the surface of the blowing pipe 4, and the air outlet groove 6 is connected to the ventilation chamber 5. A fan 7 is fixedly installed on the upper surface of the mounting frame 3. The output end of the fan 7 is fixedly connected to a... The flow pipe 8 and the branch pipe 8 pass through the lower surface of the upper horizontal plate of the mounting frame 3. Both sides of the branch pipe 8 are connected to the hoses 9. Both hoses 9 are fixedly connected to the surface of the air blower 4 and are connected to the air blower 4. The left side surface of the mounting frame 3 is fixedly connected to the motor 10. The output shaft of the motor 10 rotates and passes through the interior of the mounting frame 3. The output shaft of the motor 10 is fixedly connected to the left end of the air blower 4 by means of a coupling. The upper surface of the mounting frame 3 is provided with a mounting through groove 11. The inside of the mounting through groove 11 is provided with a pressing component.

[0024] In the above embodiments, the connection between the main body 1 and the cylinder 2 is an existing structure. In addition, the main body 1 and the cylinder 2 are matched with a power device for driving the cylinder 2 to rotate, a distribution head and a pump body for filtering, dewatering and other operations, and a scraper for scraping the filter cake. These are all conventional technical means in the field, so they will not be described in detail in this article.

[0025] When the blower pipe 4 assists in unloading material from the cylinder 2 by blowing air, the back-blowing angle is made perpendicular to the filter cake, and the kinetic energy of the airflow is used to directly "impact" the filter cake. The impact force causes the filter cake to loosen and fall off. When the back-blowing angle is tangent to the filter cylinder, the airflow acts on the filter cake in a sweeping manner along the tangent direction of the filter cylinder (parallel to the surface of the filter cloth). The shearing force and surface friction of the airflow are used to peel off the filter cake layer by layer or make it slide off as a whole. This allows the staff to select the back-blowing angle according to the actual situation, thereby improving the overall flexibility of the device.

[0026] The extrusion assembly includes a mounting plate 12, which is fixedly connected inside the mounting slot 11. Several guide rods 13 are fixedly connected to the upper surface of the mounting plate 12. An L-shaped connecting plate 14 is slidably sleeved on the outside of the guide rods 13. The L-shaped connecting plate 14 contacts the mounting plate 12. Two sliding slots 15 are opened inside the mounting plate 12. Fixed plates 16 are movably connected inside the two sliding slots 15. The two fixed plates 16 are fixedly connected to the cross plate of the L-shaped connecting plate 14. An extrusion roller 17 is arranged between the two fixed plates 16.

[0027] A first spring 18 is fixedly connected between the lower surface of the L-shaped connecting plate 14 and the upper surface of the mounting plate 12. The first spring 18 is movably sleeved on the outside of the guide rod 13.

[0028] The two fixed plates 16 are rotatably fitted with mounting rings 26 on their adjacent side surfaces. The mating grooves on the surface of the mounting rings 26 are adapted to the shafts at both ends of the extrusion rollers 17.

[0029] The vertical plate surface of the L-shaped connecting plate 14 is provided with a guide groove 19, and a disassembly component is provided inside the guide groove 19.

[0030] The disassembly assembly includes a bidirectional threaded rod 20, which is rotatably connected inside the guide groove 19. Two fixing plates 16 are slidably connected inside the guide groove 19. The two fixing plates 16 are respectively threaded onto two opposite threads of the bidirectional threaded rod 20. The left end of the bidirectional threaded rod 20 rotates through the left side surface of the L-shaped connecting plate 14.

[0031] A knob 21 is provided on the outer left end of the bidirectional threaded rod 20. A limiting chamber 22 is opened inside the knob 21. The bidirectional threaded rod 20 is slidably connected inside the limiting chamber 22 by means of the cooperation of the slider and the groove. A second spring 23 is fixedly connected between the bidirectional threaded rod 20 and the inner wall of the limiting chamber 22.

[0032] The knob 21 has a locking groove 24 extending out of the right side surface, and the L-shaped connecting plate 14 has a locking rod 25 on the left side surface. The locking rod 25 and the locking groove 24 are compatible.

[0033] The second spring 23 ensures that the knob 21 is always in contact with the surface of the L-shaped connecting plate 14, thus effectively preventing the locking rod 25 from dislodging from the locking groove 24 due to equipment vibration. Furthermore, since the locking rod 25 is inserted into the locking groove 24 for a relatively long distance, it can also prevent the locking rod 25 from dislodging from the locking groove 24 to a certain extent.

[0034] Working principle:

[0035] When using this cylindrical external vacuum permanent magnet filter, to unload the filter cake outside the cylinder 2, the operator starts the blower 7. The air is then blown into the blower pipe 4 via the diverter pipe 8 and hose 9. The blower pipe 4 then blows the air onto the surface of the cylinder 2 via the outlet sluice 6. The back-blowing air only needs to slightly inflate the filter cake; excessive inflating can cause the filter cloth to detach, facilitating subsequent unloading using the external scraper of the main body 1. This significantly improves the unloading efficiency of the filter cake and makes it highly practical. Simultaneously, the operator can start the motor 10 as needed, rotating the blower pipe 4 via the motor 10's rotating interface to switch the back-blowing angle.

[0036] In addition, when dewatering the filter cake, the extrusion roller 17 will always be in contact with the filter cake under the action of the first spring 18, thereby cooperating with the cylinder 2 to extrude the filter cake, which can further extrude the already dewatered material, thereby reducing the moisture content of the filter cake and improving the dewatering effect of the filter cake.

[0037] When cleaning or maintenance of the extrusion roller 17 is required, the knob 21 is pulled outward. The knob 21 slides outside the bidirectional threaded rod 20, and the second spring 23 deforms until the locking rod 25 disengages from the locking groove 24. Subsequently, the operator rotates the knob 21. The rotation of the knob 21, along with the interaction between the sliding groove and the slider, drives the bidirectional threaded rod 20 to rotate. This rotation of the bidirectional threaded rod 20 moves the fixed plate 16 until the mounting ring 26 inside the two fixed plates 16 and the extrusion roller 17 are engaged. After the shaft of the pressure roller 17 is separated, the extrusion roller 17 can be disassembled. When installing the extrusion roller 17, the two fixing plates 16 and the mounting ring 26 are used to clamp the extrusion roller 17, thereby realizing the installation of the extrusion roller 17. After the installation is completed, the locking groove 24 will be aligned with the locking rod 25 again. Afterwards, the knob 21 is released and the locking rod 25 is inserted into the locking groove 24 by the elastic force of the second spring 23, thereby locking the knob 21 and ensuring the stability of the bidirectional threaded rod 20.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cylindrical external filter type vacuum permanent magnet filter device, comprising a main body (1) and a cylindrical body (2) mounted on the upper side of the main body (1), characterized in that: The surface of the cylinder (2) is provided with filter cloth. The upper surface of the main body (1) is fixedly connected to the mounting frame (3). A blower pipe (4) is rotatably connected between the two vertical plates on the front side of the mounting frame (3). A ventilation chamber (5) is opened inside the blower pipe (4). An air outlet groove (6) is opened on the surface of the blower pipe (4). The air outlet groove (6) and the ventilation chamber (5) are connected. A fan (7) is fixedly installed on the upper surface of the mounting frame (3). A diverter pipe (8) is fixedly connected to the output end of the fan (7). The diverter pipe (8) passes through the upper horizontal plate of the mounting frame (3). On the lower surface, both sides of the diversion pipe (8) are connected to hoses (9), both hoses (9) are fixedly connected to the surface of the air blower (4), and both hoses (9) are connected to the air blower (4). A motor (10) is fixedly connected to the left side surface of the mounting bracket (3). The output shaft of the motor (10) rotates through the interior of the mounting bracket (3). The output shaft of the motor (10) is fixedly connected to the left end of the air blower (4) by means of a coupling. An installation through groove (11) is provided on the upper surface of the mounting bracket (3). An extrusion assembly is provided inside the installation through groove (11).

2. The cylindrical external filter type vacuum permanent magnet filter device according to claim 1, characterized in that: The extrusion assembly includes a mounting plate (12), which is fixedly connected to the inside of the mounting slot (11). A guide rod (13) is fixedly connected to the upper surface of the mounting plate (12). An L-shaped connecting plate (14) is slidably sleeved on the outside of the guide rod (13). The L-shaped connecting plate (14) is in contact with the mounting plate (12). Two sliding slots (15) are opened inside the mounting plate (12). Fixed plates (16) are movably connected inside the two sliding slots (15). The two fixed plates (16) are fixedly connected to the cross plate of the L-shaped connecting plate (14). An extrusion roller (17) is arranged between the two fixed plates (16).

3. The cylindrical external filter type vacuum permanent magnet filter device according to claim 2, characterized in that: A first spring (18) is fixedly connected between the lower surface of the L-shaped connecting plate (14) and the upper surface of the mounting plate (12), and the first spring (18) is movably sleeved on the outside of the guide rod (13).

4. The cylindrical external filter type vacuum permanent magnet filter device according to claim 3, characterized in that: The two fixing plates (16) are rotatably fitted with mounting rings (26) on their adjacent side surfaces. The mating grooves on the surface of the mounting rings (26) are adapted to the shafts at both ends of the extrusion rollers (17).

5. The cylindrical external filter type vacuum permanent magnet filter device according to claim 4, characterized in that: The vertical plate surface of the L-shaped connecting plate (14) is provided with a guide groove (19), and a disassembly component is provided inside the guide groove (19).

6. The cylindrical external filter type vacuum permanent magnet filter device according to claim 5, characterized in that: The disassembly assembly includes a bidirectional threaded rod (20), which is rotatably connected inside the guide groove (19). The two fixing plates (16) are slidably connected inside the guide groove (19). The two fixing plates (16) are respectively threaded onto two opposite threads of the bidirectional threaded rod (20). The left end of the bidirectional threaded rod (20) rotates through the left side surface of the L-shaped connecting plate (14).

7. The cylindrical external filter type vacuum permanent magnet filter device according to claim 6, characterized in that: A knob (21) is provided on the outside of the left end of the bidirectional threaded rod (20). A limiting chamber (22) is opened inside the knob (21). The bidirectional threaded rod (20) is slidably connected inside the limiting chamber (22). A second spring (23) is fixedly connected between the bidirectional threaded rod (20) and the inner wall of the limiting chamber (22).

8. The cylindrical external filter type vacuum permanent magnet filter device according to claim 7, characterized in that: The knob (21) has a locking groove (24) extending out of the right side surface, and the L-shaped connecting plate (14) has a locking rod (25) on the left side surface. The locking rod (25) and the locking groove (24) are compatible.

Images