Casting waste sand magnetic separation device

Abstract

The utility model discloses a casting waste sand magnetic separation device which comprises a chute, a power motor, a vibration hinge rod, a magnetic separation device, a belt conveyor, a crankshaft, a transmission belt and a rack, the power motor, the magnetic separation device and the belt conveyor are installed on the rack, and the magnetic separation device and the belt conveyor are matched with each other. One end of the chute is connected with the magnetic separation device, a power rod of the power motor is movably connected with the crankshaft, the two ends of the vibration hinge rod are movably connected with the crankshaft and the other end of the chute respectively, the power rod of the power motor and the power input end of the magnetic separation device are both connected with transmission belt wheels, and the two transmission belt wheels are in transmission connection through a transmission belt. The waste sand magnetic separation device for casting is simple in structure, convenient to use and practical, large caked waste sand and iron blocks are blocked and screened out through the dispersing and screening device, meanwhile, the accumulated waste sand is dispersed, the situation that the iron removal effect is reduced due to accumulation of the waste sand is avoided, and the purpose of reducing the loss of a pulverizer is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of waste sand magnetic separation technology, specifically relating to a waste sand magnetic separation device for casting. Background Technology

[0002] In casting production, molding sand is consumed in huge quantities as a molding material. Currently, although some recycled sand can be mixed with a small amount of new sand for casting after simple treatment, the decomposition products of binders, metal oxides, and harmful impurities remaining in the waste sand are difficult to completely remove. This leads to a significant decrease in key performance indicators such as refractoriness, permeability, and strength of the recycled sand, which can easily cause defects such as sand adhesion and porosity in castings after reuse. The existing waste sand recycling process involves pre-crushing the waste sand after the sand removal process, then removing iron, and finally regenerating it using dry, wet, or thermal methods. This recycling method leads to rapid equipment damage and low energy efficiency, increasing recycling costs. Therefore, we have improved the process by pre-screening, crushing, and removing iron from the waste sand. The screened agglomerated sand is then centrally crushed and regenerated using targeted dry, wet, or thermal methods to reduce recycling energy consumption and reduce damage to the crusher. Therefore, we have designed a magnetic separation device for waste sand in casting to solve the above problems. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a magnetic separation device for waste sand in foundry. It has a simple structure and is convenient and practical. It uses a dispersion screening device to block and screen out larger clumps of waste sand and iron blocks, while dispersing the accumulated waste sand to avoid the accumulation of waste sand leading to a reduction in iron removal effect and to reduce the wear and tear on the crusher.

[0004] A magnetic separator for foundry waste sand includes an inclined chute, a power motor, a vibrating hinged rod, a magnetic separator, a belt conveyor, a crankshaft, a transmission belt, and a frame. The power motor, magnetic separator, and belt conveyor are mounted on the frame. The magnetic separator and belt conveyor cooperate with each other. One end of the inclined chute is connected to the magnetic separator. The power rod of the power motor is movably connected to the crankshaft. Both ends of the vibrating hinged rod are movably connected to the crankshaft and the other end of the inclined chute, respectively. Transmission pulleys are connected to the power input ends of the power rod of the power motor and the magnetic separator. The two transmission pulleys are connected by a transmission belt. The magnetic separator includes a magnetic roller, a scraper, a movable frame, a spring, and a fixed frame. The magnetic roller is movably connected to the fixed frame, and the movable frame is slidably connected to the fixed frame. Both ends of the spring are connected to the fixed frame and the movable frame, respectively. The scraper is connected to the movable frame and cooperates with the magnetic roller.

[0005] Preferably, the inclined chute is equipped with a dispersing and screening device, which includes a dispersing plate, dispersing rods, a transverse frame, sliding rods, connecting rods, a dispersing crankshaft, and a motor. The dispersing plate is disposed inside the inclined chute and connected to the transverse frame. At least one of the sliding rods is connected inside the inclined chute and slidably connected to the transverse frame. The motor is mounted on the outer wall of the inclined chute, and its power rod is connected to the dispersing crankshaft. The two ends of the connecting rod are movably connected to the dispersing crankshaft and the transverse frame, respectively. Several dispersing rods are connected to the dispersing plate.

[0006] Preferably, the dispersing plate has a plurality of screw holes evenly provided for mounting the dispersing rod.

[0007] Preferably, the vibration hinge rod is a telescopic rod.

[0008] Beneficial effects:

[0009] This utility model discloses a magnetic separation device for waste sand in casting. It has a simple structure and is convenient and practical. The device uses a dispersing and screening device to block and screen out larger clumps of waste sand and iron blocks. At the same time, it disperses the accumulated waste sand, thereby avoiding the accumulation of waste sand that would reduce the iron removal effect and reduce the wear and tear on the crusher.

[0010] This utility model discloses a magnetic separation device for waste sand in casting. The device uses a motor to drive the inclined chute to lift and vibrate, thereby increasing the speed of waste sand conveying. At the same time, it drives the magnetic roller of the magnetic separation device to roll and screen out small iron particles, thus achieving the purpose of increasing the speed of screening out iron particles or iron powder and reducing screening energy consumption.

[0011] This utility model discloses a magnetic separation device for waste sand in casting. By controlling the extension and retraction of the vibrating hinge rod to adjust the inclination angle of the inclined track, the sliding speed of the waste sand in the inclined track is increased, thereby adjusting the screening speed according to the mixed waste sand with different binder systems such as mechanical resin sand and water glass sand. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a waste sand magnetic separator.

[0013] Figure 2 This is a schematic diagram of the structure of the dispersed screening device;

[0014] Figure 3 This is a schematic diagram of the magnetic separator.

[0015] 1-Inclined chute, 2-Dispersion screening device, 21-Dispersion plate, 22-Dispersion rod, 23-Transverse frame, 24-Slide rod, 25-Connecting rod, 26-Dispersion crankshaft, 3-Power motor, 4-Vibrating hinge rod, 5-Magnetic separator, 51-Magnetic roller, 52-Scraper, 53-Moving frame, 54-Spring, 55-Fixed frame, 6-Belt conveyor, 7-Crankshaft, 8-Transmission belt. Detailed Implementation

[0016] The embodiments of this utility model are further described below with reference to the accompanying drawings. Example 1

[0017] like Figures 1 to 3 As shown; a magnetic separation device for foundry waste sand includes an inclined chute 1, a power motor 3, a vibrating hinge rod 4, a magnetic separator 5, a belt conveyor 6, a crankshaft 7, a transmission belt 8, and a frame. The power motor 3, the magnetic separator 5, and the belt conveyor 6 are mounted on the frame. The magnetic separator 5 and the belt conveyor 6 cooperate with each other. One end of the inclined chute 1 is connected to the magnetic separator 5. The power rod of the power motor 3 is movably connected to the crankshaft 7. Both ends of the vibrating hinge rod 4 are movably connected to the crankshaft 7 and the other end of the inclined chute 1, respectively. Transmission pulleys are connected to the power rod of the power motor 3 and the power input end of the magnetic separator 5. The two transmission pulleys are connected by transmission belt 8. The magnetic separator 5 includes a magnetic roller 51, a scraper 52, a movable frame 53, a spring 54, and a fixed frame 55. The magnetic roller 51 is movably connected to the fixed frame 55, and the movable frame 53 is slidably connected to the fixed frame 55. On the frame 55, the spring 54 is connected at both ends to the fixed frame 55 and the movable frame 53 respectively. The scraper 52 is connected to the movable frame 53 and cooperates with the magnetic roller 51. The inclined chute 1 is equipped with a dispersion screening device 2, which includes a dispersion plate 21, dispersion rods 22, a transverse frame 23, a slide rod 24, a connecting rod 25, a dispersion crankshaft 26, and a motor. The dispersion plate 21 is set inside the inclined chute 1 and connected to the transverse frame 23. At least two slide rods 24 are connected inside the inclined chute 1 and slidably connected to the transverse frame 23. The motor is installed on the outer wall of the inclined chute 1 and the power rod is connected to the dispersion crankshaft 26. The two ends of the connecting rod 25 are movably connected to the dispersion crankshaft 26 and the transverse frame 23 respectively. Several dispersion rods 22 are connected to the dispersion plate 21. Several screw holes for installing dispersion rods 22 are evenly opened on the dispersion plate 21. The vibration hinge rod 4 is a telescopic rod.

[0018] The power motor 3 drives the crankshaft 7 and the transmission pulley to rotate. The crankshaft 7 drives the vibrating hinge rod 4 to rapidly raise and lower one end of the inclined chute 1, achieving rapid vibration of the inclined chute 1 and increasing the material guiding speed. The transmission pulley drives another transmission pulley to rotate via the transmission belt 8, and the other transmission pulley drives the magnetic roller 51 to rotate. The motor drives the dispersing crankshaft 26 to rotate, and the dispersing crankshaft 26 drives the connecting rod 25 to pull the transverse frame 23 back and forth on the slide rod 24. The transverse frame 23 drives the dispersing plate 21 to move back and forth, causing the dispersing rod 22 on the dispersing plate 21 to move back and forth to agitate the waste sand. Waste sand is dispersed; the waste sand is introduced into the inclined chute 1 and rolls or slides toward the dispersing rod 22. Larger clumps of waste sand are blocked by the dispersing rod 22 and are removed manually. Smaller sand and iron particles are dispersed and guided to the magnetic roller 51 by the dispersing rod 22. The rolling magnetic roller 51 adsorbs the iron particles and discharges them, while the sand slides into the belt conveyor 6 through the magnetic roller 51 and is discharged. Iron shavings are blocked and scraped off by the scraper 52. The spring 54 keeps the scraper 52 in close contact with the surface of the magnetic roller 51. The vibrating hinge rod 4 is set as a telescopic rod, so that the inclination angle of the inclined chute 1 is changed.

[0019] The specific embodiments of this utility model have been described in detail above, but they are merely examples, and this utility model is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications and substitutions to this utility model are also within the scope of this utility model. Therefore, all equivalent changes and modifications made without departing from the spirit and scope of this utility model are covered within the scope of this utility model.

Claims

1. A magnetic separation device for foundry waste sand, characterized by: The system includes an inclined rail (1), a power motor (3), a vibrating hinge rod (4), a magnetic separator (5), a belt conveyor (6), a crankshaft (7), a transmission belt (8), and a frame. The power motor (3), the magnetic separator (5), and the belt conveyor (6) are mounted on the frame. The magnetic separator (5) and the belt conveyor (6) cooperate with each other. One end of the inclined rail (1) is connected to the magnetic separator (5). The power rod of the power motor (3) is movably connected to the crankshaft (7). Both ends of the vibrating hinge rod (4) are movably connected to the crankshaft (7) and the other end of the inclined rail (1), respectively. The power motor (3) moves... Both the lever and the magnetic separator (5) are connected to a drive pulley at the power input end, and the two drive pulleys are connected by a drive belt (8). The magnetic separator (5) includes a magnetic roller (51), a scraper (52), a movable frame (53), a spring (54), and a fixed frame (55). The magnetic roller (51) is movably connected to the fixed frame (55), the movable frame (53) is slidably connected to the fixed frame (55), the two ends of the spring (54) are respectively connected to the fixed frame (55) and the movable frame (53), and the scraper (52) is connected to the movable frame (53) and cooperates with the magnetic roller (51).

2. The magnetic separation device for waste sand in casting as described in claim 1, characterized in that: The inclined slide (1) is equipped with a dispersion screening device (2), which includes a dispersion plate (21), dispersion rods (22), a transverse frame (23), a slide rod (24), a connecting rod (25), a dispersion crankshaft (26), and a motor. The dispersion plate (21) is located inside the inclined slide (1) and connected to the transverse frame (23). At least two slide rods (24) are connected inside the inclined slide (1) and slidably connected to the transverse frame (23). The motor is installed on the outer wall of the inclined slide (1) and its power rod is connected to the dispersion crankshaft (26). The two ends of the connecting rod (25) are movably connected to the dispersion crankshaft (26) and the transverse frame (23), respectively. Several dispersion rods (22) are connected to the dispersion plate (21).

3. The magnetic separation device for waste sand in casting as described in claim 2, characterized in that: The dispersion plate (21) is provided with a number of screw holes for mounting the dispersion rod (22) evenly distributed.

4. The magnetic separation device for waste sand in casting as described in claim 3, characterized in that: The vibration hinge rod (4) is a telescopic rod.

Images